Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 1 | +++++++++++ |
| 2 | Python News |
| 3 | +++++++++++ |
| 4 | |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 5 | (editors: check NEWS.help for information about editing NEWS using ReST.) |
| 6 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 7 | What's New in Python 2.5 alpha 1? |
| 8 | ================================= |
| 9 | |
Anthony Baxter | 12b6f6c | 2005-03-29 13:36:16 +0000 | [diff] [blame] | 10 | *Release date: XX-XXX-2006* |
| 11 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 12 | Core and builtins |
| 13 | ----------------- |
| 14 | |
Neal Norwitz | fc76d63 | 2006-01-10 06:03:13 +0000 | [diff] [blame] | 15 | - Patch #1400181, fix unicode string formatting to not use the locale. |
| 16 | This is how string objects work. u'%f' could use , instead of . |
| 17 | for the decimal point. Now both strings and unicode always use periods. |
| 18 | |
Neal Norwitz | 671b9e3 | 2006-01-09 07:07:12 +0000 | [diff] [blame] | 19 | - Bug #1244610, #1392915, fix build problem on OpenBSD 3.7 and 3.8. |
| 20 | configure would break checking curses.h. |
| 21 | |
Georg Brandl | cd4d1e8 | 2005-12-27 17:37:07 +0000 | [diff] [blame] | 22 | - Bug #959576: The pwd module is now builtin. This allows Python to be |
| 23 | built on UNIX platforms without $HOME set. |
| 24 | |
Neal Norwitz | c10978f | 2005-12-19 06:07:16 +0000 | [diff] [blame] | 25 | - Bug #1072182, fix some potential problems if characters are signed. |
| 26 | |
Neal Norwitz | 5d0ad50 | 2005-12-19 04:27:42 +0000 | [diff] [blame] | 27 | - Bug #889500, fix line number on SyntaxWarning for global declarations. |
| 28 | |
Neal Norwitz | db83eb3 | 2005-12-18 05:29:30 +0000 | [diff] [blame] | 29 | - Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter. |
| 30 | |
Neal Norwitz | e7214a1 | 2005-12-18 05:03:17 +0000 | [diff] [blame] | 31 | - Support for converting hex strings to floats no longer works. |
| 32 | This was not portable. float('0x3') now raises a ValueError. |
| 33 | |
Barry Warsaw | 2a38a86 | 2005-12-18 01:27:35 +0000 | [diff] [blame] | 34 | - Patch #1382163: Expose Subversion revision number to Python. New C API |
| 35 | function Py_GetBuildNumber(). New attribute sys.build_number. Build number |
| 36 | is now displayed in interactive prompt banner. |
| 37 | |
Georg Brandl | fa16668 | 2005-12-17 21:45:17 +0000 | [diff] [blame] | 38 | - Implementation of PEP 341 - Unification of try/except and try/finally. |
| 39 | "except" clauses can now be written together with a "finally" clause in |
Neal Norwitz | 11ca77e | 2005-12-17 22:24:12 +0000 | [diff] [blame] | 40 | one try statement instead of two nested ones. Patch #1355913. |
Georg Brandl | fa16668 | 2005-12-17 21:45:17 +0000 | [diff] [blame] | 41 | |
Hye-Shik Chang | 835b243 | 2005-12-17 04:38:31 +0000 | [diff] [blame] | 42 | - Bug #1379994: Builtin unicode_escape and raw_unicode_escape codec |
| 43 | now encodes backslash correctly. |
| 44 | |
Martin v. Löwis | b45b315 | 2005-11-28 17:34:23 +0000 | [diff] [blame] | 45 | - Patch #1350409: Work around signal handling bug in Visual Studio 2005. |
| 46 | |
Georg Brandl | f06e30a | 2005-11-24 15:37:42 +0000 | [diff] [blame] | 47 | - Bug #1281408: Py_BuildValue now works correct even with unsigned longs |
| 48 | and long longs. |
| 49 | |
Neal Norwitz | 67715f0 | 2005-11-09 06:59:35 +0000 | [diff] [blame] | 50 | - SF Bug #1350188, "setdlopenflags" leads to crash upon "import" |
| 51 | It was possible dlerror() returns a NULL pointer, use a default error |
| 52 | message in this case. |
| 53 | |
Marc-André Lemburg | a5bafc4 | 2005-10-23 13:43:40 +0000 | [diff] [blame] | 54 | - Replaced most Unicode charmap codecs with new ones using the |
| 55 | new Unicode translate string feature in the builtin charmap |
| 56 | codec; the codecs were created from the mapping tables available |
| 57 | at ftp.unicode.org and contain a few updates (e.g. the Mac OS |
| 58 | encodings now include a mapping for the Apple logo) |
| 59 | |
Tim Peters | e3547fd | 2005-12-16 23:13:57 +0000 | [diff] [blame] | 60 | - Added a few more codecs for Mac OS encodings |
Marc-André Lemburg | a5bafc4 | 2005-10-23 13:43:40 +0000 | [diff] [blame] | 61 | |
Neal Norwitz | fed9b3e | 2005-10-21 06:32:02 +0000 | [diff] [blame] | 62 | - Speed up some Unicode operations. |
| 63 | |
| 64 | - A new AST parser implementation was completed. |
| 65 | |
Neal Norwitz | b6570f5 | 2005-10-21 06:26:10 +0000 | [diff] [blame] | 66 | - SF bug #1167751: fix incorrect code being for generator expressions. |
Neal Norwitz | 16af734 | 2005-10-21 06:25:33 +0000 | [diff] [blame] | 67 | The following code now raises a SyntaxError: foo(a = i for i in range(10)) |
| 68 | |
Neal Norwitz | 708e51a | 2005-10-03 04:48:15 +0000 | [diff] [blame] | 69 | - SF Bug #976608: fix SystemError when mtime of an imported file is -1. |
| 70 | |
Neal Norwitz | 11bd119 | 2005-10-03 00:54:56 +0000 | [diff] [blame] | 71 | - SF Bug #887946: fix segfault when redirecting stdin from a directory. |
| 72 | Provide a warning when a directory is passed on the command line. |
| 73 | |
Neal Norwitz | 40d3781 | 2005-10-02 01:48:49 +0000 | [diff] [blame] | 74 | - Fix segfault with invalid coding. |
| 75 | |
| 76 | - SF bug #772896: unknown encoding results in MemoryError. |
| 77 | |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 78 | - All iterators now have a Boolean value of true. Formerly, some iterators |
| 79 | supported a __len__() method which evaluated to False when the iterator |
| 80 | was empty. |
| 81 | |
Guido van Rossum | 630db60 | 2005-09-20 18:49:54 +0000 | [diff] [blame] | 82 | - On 64-bit platforms, when __len__() returns a value that cannot be |
| 83 | represented as a C int, raise OverflowError. |
| 84 | |
Skip Montanaro | f8948ca | 2005-09-19 03:54:46 +0000 | [diff] [blame] | 85 | - test__locale is skipped on OS X < 10.4 (only partial locale support is |
Walter Dörwald | 6611a8b | 2005-10-09 19:28:35 +0000 | [diff] [blame] | 86 | present). |
Skip Montanaro | f8948ca | 2005-09-19 03:54:46 +0000 | [diff] [blame] | 87 | |
Georg Brandl | 80bbf3f | 2005-09-14 19:38:29 +0000 | [diff] [blame] | 88 | - SF bug #893549: parsing keyword arguments was broken with a few format |
| 89 | codes. |
| 90 | |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 91 | - Changes donated by Elemental Security to make it work on AIX 5.3 |
| 92 | with IBM's 64-bit compiler (SF patch #1284289). This also closes SF |
| 93 | bug #105470: test_pwd fails on 64bit system (Opteron). |
| 94 | |
Guido van Rossum | 539c662 | 2005-09-14 17:49:54 +0000 | [diff] [blame] | 95 | - Changes donated by Elemental Security to make it work on HP-UX 11 on |
| 96 | Itanium2 with HP's 64-bit compiler (SF patch #1225212). |
| 97 | |
Georg Brandl | 4550b8d | 2005-08-26 06:43:52 +0000 | [diff] [blame] | 98 | - Disallow keyword arguments for type constructors that don't use them |
Georg Brandl | 02c4287 | 2005-08-26 06:42:30 +0000 | [diff] [blame] | 99 | (fixes bug #1119418). |
| 100 | |
Martin v. Löwis | d35edda | 2005-08-24 08:39:24 +0000 | [diff] [blame] | 101 | - Forward UnicodeDecodeError into SyntaxError for source encoding errors. |
| 102 | |
Barry Warsaw | e2eca0b | 2005-08-15 18:14:19 +0000 | [diff] [blame] | 103 | - SF bug #900092: When tracing (e.g. for hotshot), restore 'return' events for |
| 104 | exceptions that cause a function to exit. |
| 105 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 106 | - The implementation of set() and frozenset() was revised to use its |
| 107 | own internal data structure. Memory consumption is reduced by 1/3 |
| 108 | and there are modest speed-ups as well. The API is unchanged. |
| 109 | |
Tim Peters | de7990b | 2005-07-17 23:45:23 +0000 | [diff] [blame] | 110 | - SF bug #1238681: freed pointer is used in longobject.c:long_pow(). |
| 111 | |
Michael W. Hudson | 0edc7a0 | 2005-07-12 10:21:19 +0000 | [diff] [blame] | 112 | - SF bug #1229429: PyObject_CallMethod failed to decrement some |
| 113 | reference counts in some error exit cases. |
| 114 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 115 | - SF bug #1185883: Python's small-object memory allocator took over |
| 116 | a block managed by the platform C library whenever a realloc specified |
| 117 | a small new size. However, there's no portable way to know then how |
| 118 | much of the address space following the pointer is valid, so no |
| 119 | portable way to copy data from the C-managed block into Python's |
| 120 | small-object space without risking a memory fault. Python's small-object |
| 121 | realloc now leaves such blocks under the control of the platform C |
| 122 | realloc. |
| 123 | |
Michael W. Hudson | b896381 | 2005-07-05 15:21:58 +0000 | [diff] [blame] | 124 | - SF bug #1232517: An overflow error was not detected properly when |
| 125 | attempting to convert a large float to an int in os.utime(). |
| 126 | |
Raymond Hettinger | 3296e69 | 2005-06-29 23:29:56 +0000 | [diff] [blame] | 127 | - SF bug #1224347: hex longs now print with lowercase letters just |
| 128 | like their int counterparts. |
| 129 | |
Michael W. Hudson | 188d436 | 2005-06-20 16:52:57 +0000 | [diff] [blame] | 130 | - SF bug #1163563: the original fix for bug #1010677 ("thread Module |
| 131 | Breaks PyGILState_Ensure()") broke badly in the case of multiple |
| 132 | interpreter states; back out that fix and do a better job (see |
| 133 | http://mail.python.org/pipermail/python-dev/2005-June/054258.html |
| 134 | for a longer write-up of the problem). |
| 135 | |
Michael W. Hudson | df88846 | 2005-06-03 14:41:55 +0000 | [diff] [blame] | 136 | - SF patch #1180995: marshal now uses a binary format by default when |
| 137 | serializing floats. |
| 138 | |
Michael W. Hudson | da85a90 | 2005-06-01 11:34:22 +0000 | [diff] [blame] | 139 | - SF patch #1181301: on platforms that appear to use IEEE 754 floats, |
| 140 | the routines that promise to produce IEEE 754 binary representations |
| 141 | of floats now simply copy bytes around. |
| 142 | |
Skip Montanaro | bbf12ba | 2005-05-20 03:07:06 +0000 | [diff] [blame] | 143 | - bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP |
| 144 | 278. |
| 145 | |
Brett Cannon | c3647ac | 2005-04-26 03:45:26 +0000 | [diff] [blame] | 146 | - patch #1109424: int, long, float, complex, and unicode now check for the |
| 147 | proper magic slot for type conversions when subclassed. Previously the |
| 148 | magic slot was ignored during conversion. Semantics now match the way |
| 149 | subclasses of str always behaved. int/long/float, conversion of an instance |
Walter Dörwald | 78a78b0 | 2005-09-01 12:04:29 +0000 | [diff] [blame] | 150 | to the base class has been moved to the proper nb_* magic slot and out of |
Brett Cannon | c3647ac | 2005-04-26 03:45:26 +0000 | [diff] [blame] | 151 | PyNumber_*(). |
| 152 | Thanks Walter Dörwald. |
| 153 | |
Barry Warsaw | c8d907c | 2005-04-19 23:43:40 +0000 | [diff] [blame] | 154 | - Descriptors defined in C with a PyGetSetDef structure, where the setter is |
| 155 | NULL, now raise an AttributeError when attempting to set or delete the |
| 156 | attribute. Previously a TypeError was raised, but this was inconsistent |
| 157 | with the equivalent pure-Python implementation. |
| 158 | |
Michael W. Hudson | 774479c | 2005-04-18 08:46:17 +0000 | [diff] [blame] | 159 | - It is now safe to call PyGILState_Release() before |
| 160 | PyEval_InitThreads() (note that if there is reason to believe there |
| 161 | are multiple threads around you still must call PyEval_InitThreads() |
| 162 | before using the Python API; this fix is for extension modules that |
| 163 | have no way of knowing if Python is multi-threaded yet). |
| 164 | |
Michael W. Hudson | e3afc59 | 2005-04-07 10:11:19 +0000 | [diff] [blame] | 165 | - Typing Ctrl-C whilst raw_input() was waiting in a build with threads |
| 166 | disabled caused a crash. |
| 167 | |
Michael W. Hudson | b330adf | 2005-03-31 09:35:44 +0000 | [diff] [blame] | 168 | - Bug #1165306: instancemethod_new allowed the creation of a method |
| 169 | with im_class == im_self == NULL, which caused a crash when called. |
| 170 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 171 | - Move exception finalisation later in the shutdown process - this |
Anthony Baxter | 12b6f6c | 2005-03-29 13:36:16 +0000 | [diff] [blame] | 172 | fixes the crash seen in bug #1165761 |
| 173 | |
Raymond Hettinger | 96229b1 | 2005-03-11 06:49:40 +0000 | [diff] [blame] | 174 | - Added two new builtins, any() and all(). |
| 175 | |
Brett Cannon | 409d8f2 | 2005-03-05 06:47:57 +0000 | [diff] [blame] | 176 | - Defining a class with empty parentheses is now allowed |
Brett Cannon | f418991 | 2005-04-09 02:30:16 +0000 | [diff] [blame] | 177 | (e.g., ``class C(): pass`` is no longer a syntax error). |
| 178 | Patch #1176012 added support to the 'parser' module and 'compiler' package |
| 179 | (thanks to logistix for that added support). |
Brett Cannon | 409d8f2 | 2005-03-05 06:47:57 +0000 | [diff] [blame] | 180 | |
Martin v. Löwis | 96d743e | 2005-03-03 23:00:26 +0000 | [diff] [blame] | 181 | - Patch #1115086: Support PY_LONGLONG in structmember. |
| 182 | |
Raymond Hettinger | b67cc80 | 2005-03-03 16:45:19 +0000 | [diff] [blame] | 183 | - Bug #1155938: new style classes did not check that __init__() was |
| 184 | returning None. |
| 185 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 186 | - Patch #802188: Report characters after line continuation character |
Martin v. Löwis | 4bf108d | 2005-03-03 11:45:45 +0000 | [diff] [blame] | 187 | ('\') with a specific error message. |
| 188 | |
Martin v. Löwis | ff232d7 | 2005-03-03 09:24:38 +0000 | [diff] [blame] | 189 | - Bug #723201: Raise a TypeError for passing bad objects to 'L' format. |
| 190 | |
Michael W. Hudson | 8e1afab | 2005-02-17 14:55:21 +0000 | [diff] [blame] | 191 | - Bug #1124295: the __name__ attribute of file objects was |
| 192 | inadvertently made inaccessible in restricted mode. |
| 193 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 194 | - Bug #1074011: closing sys.std{out,err} now causes a flush() and |
Martin v. Löwis | 8e3ca8a | 2005-01-23 09:41:49 +0000 | [diff] [blame] | 195 | an ferror() call. |
| 196 | |
Raymond Hettinger | 3b0c7c2 | 2004-12-03 08:30:39 +0000 | [diff] [blame] | 197 | - min() and max() now support key= arguments with the same meaning as in |
| 198 | list.sort(). |
| 199 | |
Raymond Hettinger | c34f867 | 2005-01-02 06:17:33 +0000 | [diff] [blame] | 200 | - The peephole optimizer now performs simple constant folding in expressions: |
| 201 | (2+3) --> (5). |
| 202 | |
Raymond Hettinger | a422c34 | 2005-01-11 03:03:27 +0000 | [diff] [blame] | 203 | - set and frozenset objects can now be marshalled. SF #1098985. |
| 204 | |
Michael W. Hudson | faa7648 | 2005-01-31 17:09:25 +0000 | [diff] [blame] | 205 | - Bug #1077106: Poor argument checking could cause memory corruption |
| 206 | in calls to os.read(). |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 207 | |
Jeremy Hylton | ab63050 | 2005-02-04 18:44:06 +0000 | [diff] [blame] | 208 | - The parser did not complain about future statements in illegal |
| 209 | positions. It once again reports a syntax error if a future |
| 210 | statement occurs after anything other than a doc string. |
| 211 | |
Neil Schemenauer | cf52c07 | 2005-08-12 17:34:58 +0000 | [diff] [blame] | 212 | - Change the %s format specifier for str objects so that it returns a |
| 213 | unicode instance if the argument is not an instance of basestring and |
| 214 | calling __str__ on the argument returns a unicode instance. |
| 215 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 216 | Extension Modules |
| 217 | ----------------- |
| 218 | |
Neal Norwitz | 3b4fff8 | 2006-01-11 08:54:45 +0000 | [diff] [blame] | 219 | - Bug #1402308, (possible) segfault when using mmap.mmap(-1, ...) |
| 220 | |
Neal Norwitz | 88bbd73 | 2006-01-10 07:05:44 +0000 | [diff] [blame] | 221 | - Bug #1400822, _curses over{lay,write} doesn't work when passing 6 ints. |
| 222 | Also fix ungetmouse() which did not accept arguments properly. |
| 223 | The code now conforms to the documented signature. |
| 224 | |
Neal Norwitz | 5e3d862 | 2006-01-09 06:24:35 +0000 | [diff] [blame] | 225 | - Bug #1400115, Fix segfault when calling curses.panel.userptr() |
| 226 | without prior setting of the userptr. |
| 227 | |
Neal Norwitz | 40c6b47 | 2006-01-05 05:43:35 +0000 | [diff] [blame] | 228 | - Fix 64-bit problems in bsddb. |
| 229 | |
Neal Norwitz | 8856fb7 | 2005-12-18 03:34:22 +0000 | [diff] [blame] | 230 | - Patch #1365916: fix some unsafe 64-bit mmap methods. |
| 231 | |
Hye-Shik Chang | c5c57e6 | 2005-12-12 11:48:32 +0000 | [diff] [blame] | 232 | - Bug #1290333: Added a workaround for cjkcodecs' _codecs_cn build |
| 233 | problem on AIX. |
| 234 | |
Georg Brandl | a13c244 | 2005-11-22 19:30:31 +0000 | [diff] [blame] | 235 | - Bug #869197: os.setgroups rejects long integer arguments |
| 236 | |
Neal Norwitz | 0f46bbf | 2005-11-03 05:00:25 +0000 | [diff] [blame] | 237 | - Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint |
| 238 | |
Neal Norwitz | 7b63179 | 2005-11-02 05:26:07 +0000 | [diff] [blame] | 239 | - Bug #1344508, Fix UNIX mmap leaking file descriptors |
| 240 | |
Neal Norwitz | f339654 | 2005-10-28 05:52:22 +0000 | [diff] [blame] | 241 | - Patch #1338314, Bug #1336623: fix tarfile so it can extract |
| 242 | REGTYPE directories from tarfiles written by old programs. |
| 243 | |
Neal Norwitz | fed9b3e | 2005-10-21 06:32:02 +0000 | [diff] [blame] | 244 | - Get bsddb module to build with BSD DB version 3.2 |
| 245 | |
Neal Norwitz | 484d9a4 | 2005-09-30 04:46:49 +0000 | [diff] [blame] | 246 | - Patch #1309009, Fix segfault in pyexpat when the XML document is in latin_1, |
| 247 | but Python incorrectly assumes it is in UTF-8 format |
| 248 | |
Georg Brandl | e677adc | 2005-09-29 13:40:49 +0000 | [diff] [blame] | 249 | - Fix parse errors in the readline module when compiling without threads. |
| 250 | |
Hye-Shik Chang | 9ceebd5 | 2005-09-24 14:58:47 +0000 | [diff] [blame] | 251 | - Patch #1288833: Removed thread lock from socket.getaddrinfo on |
| 252 | FreeBSD 5.3 and later versions which got thread-safe getaddrinfo(3). |
| 253 | |
Michael W. Hudson | 10402a3 | 2005-09-22 09:19:01 +0000 | [diff] [blame] | 254 | - Patches #1298449 and #1298499: Add some missing checks for error |
| 255 | returns in cStringIO.c. |
| 256 | |
Neal Norwitz | 058bde1 | 2005-09-21 06:44:25 +0000 | [diff] [blame] | 257 | - Patch #1297028: fix segfault if call type on MultibyteCodec, |
| 258 | MultibyteStreamReader, or MultibyteStreamWriter |
| 259 | |
Neal Norwitz | cfe7dd9 | 2005-09-19 06:49:27 +0000 | [diff] [blame] | 260 | - Fix memory leak in posix.access(). |
| 261 | |
Martin v. Löwis | 8b291e2 | 2005-09-18 08:17:56 +0000 | [diff] [blame] | 262 | - Patch #1213831: Fix typo in unicodedata._getcode. |
| 263 | |
Georg Brandl | fb1ef85 | 2005-09-14 20:53:32 +0000 | [diff] [blame] | 264 | - Bug #1007046: os.startfile() did not accept unicode strings encoded in |
| 265 | the file system encoding. |
| 266 | |
Georg Brandl | d2e3ba7 | 2005-08-26 08:34:00 +0000 | [diff] [blame] | 267 | - Patch #756021: Special-case socket.inet_aton('255.255.255.255') for |
| 268 | platforms that don't have inet_aton(). |
Georg Brandl | 02760f9 | 2005-08-25 13:10:41 +0000 | [diff] [blame] | 269 | |
Georg Brandl | d2e3ba7 | 2005-08-26 08:34:00 +0000 | [diff] [blame] | 270 | - Bug #1215928: Fix bz2.BZ2File.seek() for 64-bit file offsets. |
| 271 | |
| 272 | - Bug #1191043: Fix bz2.BZ2File.(x)readlines for files containing one |
Georg Brandl | 02760f9 | 2005-08-25 13:10:41 +0000 | [diff] [blame] | 273 | line without newlines. |
| 274 | |
Georg Brandl | 38387b8 | 2005-08-24 07:17:40 +0000 | [diff] [blame] | 275 | - Bug #728515: mmap.resize() now resizes the file on Unix as it did |
| 276 | on Windows. |
| 277 | |
Walter Dörwald | a05834e | 2005-10-09 19:38:21 +0000 | [diff] [blame] | 278 | - Patch #1180695: Add nanosecond stat resolution, and st_gen, |
Martin v. Löwis | ebd9d5b | 2005-08-09 15:00:59 +0000 | [diff] [blame] | 279 | st_birthtime for FreeBSD. |
| 280 | |
Michael W. Hudson | 8137bea | 2005-07-27 20:24:40 +0000 | [diff] [blame] | 281 | - Patch #1231069: The fcntl.ioctl function now uses the 'I' code for |
| 282 | the request code argument, which results in more C-like behaviour |
| 283 | for large or negative values. |
| 284 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 285 | - Bug #1234979: For the argument of thread.Lock.acquire, the Windows |
Andrew M. Kuchling | 88b8582 | 2005-08-23 00:57:07 +0000 | [diff] [blame] | 286 | implementation treated all integer values except 1 as false. |
Georg Brandl | af410b5 | 2005-07-08 22:26:13 +0000 | [diff] [blame] | 287 | |
Georg Brandl | 6b95f1d | 2005-06-03 19:47:00 +0000 | [diff] [blame] | 288 | - Bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly. |
| 289 | |
Hye-Shik Chang | 5f937a7 | 2005-06-02 13:09:30 +0000 | [diff] [blame] | 290 | - Patch #1212117: os.stat().st_flags is now accessible as a attribute |
| 291 | if available on the platform. |
| 292 | |
Skip Montanaro | 5ff1492 | 2005-05-16 02:42:22 +0000 | [diff] [blame] | 293 | - Patch #1103951: Expose O_SHLOCK and O_EXLOCK in the posix module if |
| 294 | available on the platform. |
| 295 | |
Michael W. Hudson | b330adf | 2005-03-31 09:35:44 +0000 | [diff] [blame] | 296 | - Bug #1166660: The readline module could segfault if hook functions |
| 297 | were set in a different thread than that which called readline. |
| 298 | |
Raymond Hettinger | 4aec61e | 2005-03-18 21:20:23 +0000 | [diff] [blame] | 299 | - collections.deque objects now support a remove() method. |
| 300 | |
Raymond Hettinger | 984f9bb | 2005-03-09 16:38:48 +0000 | [diff] [blame] | 301 | - operator.itemgetter() and operator.attrgetter() now support retrieving |
| 302 | multiple fields. This provides direct support for sorting on multiple |
| 303 | keys (primary, secondary, etc). |
| 304 | |
Martin v. Löwis | b60ae99 | 2005-03-08 09:10:29 +0000 | [diff] [blame] | 305 | - os.access now supports Unicode path names on non-Win32 systems. |
| 306 | |
Martin v. Löwis | fd78a6f | 2005-03-04 14:37:01 +0000 | [diff] [blame] | 307 | - Patches #925152, #1118602: Avoid reading after the end of the buffer |
| 308 | in pyexpat.GetInputContext. |
| 309 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 310 | - Patches #749830, #1144555: allow UNIX mmap size to default to current |
Martin v. Löwis | 7fe60c0 | 2005-03-03 11:22:44 +0000 | [diff] [blame] | 311 | file size. |
| 312 | |
Raymond Hettinger | 9c323f8 | 2005-02-28 19:39:44 +0000 | [diff] [blame] | 313 | - Added functional.partial(). See PEP309. |
| 314 | |
Martin v. Löwis | 9533e34 | 2005-02-27 20:33:25 +0000 | [diff] [blame] | 315 | - Patch #1093585: raise a ValueError for negative history items in readline. |
| 316 | {remove_history,replace_history} |
| 317 | |
Fred Drake | 9c131f2 | 2005-01-23 15:16:08 +0000 | [diff] [blame] | 318 | - The spwd module has been added, allowing access to the shadow password |
| 319 | database. |
Martin v. Löwis | c300175 | 2005-01-23 09:27:24 +0000 | [diff] [blame] | 320 | |
Martin v. Löwis | fe33d0b | 2005-01-16 08:57:39 +0000 | [diff] [blame] | 321 | - stat_float_times is now True. |
| 322 | |
Raymond Hettinger | b0900e6 | 2004-12-16 16:23:40 +0000 | [diff] [blame] | 323 | - array.array objects are now picklable. |
| 324 | |
Raymond Hettinger | a6b45cc | 2004-12-07 07:05:57 +0000 | [diff] [blame] | 325 | - the cPickle module no longer accepts the deprecated None option in the |
| 326 | args tuple returned by __reduce__(). |
| 327 | |
Raymond Hettinger | b259405 | 2004-12-05 09:25:51 +0000 | [diff] [blame] | 328 | - itertools.islice() now accepts None for the start and step arguments. |
| 329 | This allows islice() to work more readily with slices: |
| 330 | islice(s.start, s.stop, s.step) |
| 331 | |
Skip Montanaro | 0af3ade | 2005-01-13 04:12:31 +0000 | [diff] [blame] | 332 | - datetime.datetime() now has a strptime class method which can be used to |
| 333 | create datetime object using a string and format. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 334 | |
| 335 | Library |
| 336 | ------- |
| 337 | |
Georg Brandl | 4edd989 | 2006-01-13 16:59:46 +0000 | [diff] [blame^] | 338 | - Bug #1403410: The warnings module now doesn't get confused |
| 339 | when it can't find out the module name it generates a warning for. |
| 340 | |
Martin v. Löwis | 412ed3b | 2006-01-08 10:45:39 +0000 | [diff] [blame] | 341 | - Patch #1177307: Added a new codec utf_8_sig for UTF-8 with a BOM signature. |
| 342 | |
Neal Norwitz | ab86f8e | 2005-12-23 21:44:36 +0000 | [diff] [blame] | 343 | - Patch #1157027: cookielib mishandles RFC 2109 cookies in Netscape mode |
| 344 | |
Neal Norwitz | 338e786 | 2005-12-23 21:27:46 +0000 | [diff] [blame] | 345 | - Patch #1117398: cookielib.LWPCookieJar and .MozillaCookieJar now raise |
| 346 | LoadError as documented, instead of IOError. For compatibility, |
| 347 | LoadError subclasses IOError. |
| 348 | |
Brett Cannon | 3cbd038 | 2005-12-16 22:49:23 +0000 | [diff] [blame] | 349 | - Added the hashlib module. It provides secure hash functions for MD5 and |
Tim Peters | e3547fd | 2005-12-16 23:13:57 +0000 | [diff] [blame] | 350 | SHA1, 224, 256, 384, and 512. Note that recent developments make the |
| 351 | historic MD5 and SHA1 unsuitable for cryptographic-strength applications. |
| 352 | In <http://mail.python.org/pipermail/python-dev/2005-December/058850.html> |
| 353 | Ronald L. Rivest offered this advice for Python: |
| 354 | |
| 355 | "The consensus of researchers in this area (at least as |
| 356 | expressed at the NIST Hash Function Workshop 10/31/05), |
| 357 | is that SHA-256 is a good choice for the time being, but |
| 358 | that research should continue, and other alternatives may |
| 359 | arise from this research. The larger SHA's also seem OK." |
Brett Cannon | 3cbd038 | 2005-12-16 22:49:23 +0000 | [diff] [blame] | 360 | |
Fredrik Lundh | 7e0aef0 | 2005-12-12 18:54:55 +0000 | [diff] [blame] | 361 | - Added a subset of Fredrik Lundh's ElementTree package. Available |
| 362 | modules are xml.etree.ElementTree, xml.etree.ElementPath, and |
| 363 | xml.etree.ElementInclude, from ElementTree 1.2.6. |
| 364 | |
Martin v. Löwis | 307021f | 2005-11-27 16:59:04 +0000 | [diff] [blame] | 365 | - Patch #1162825: Support non-ASCII characters in IDLE window titles. |
| 366 | |
Georg Brandl | 1f66357 | 2005-11-26 16:50:44 +0000 | [diff] [blame] | 367 | - Bug #1365984: urllib now opens "data:" URLs again. |
| 368 | |
Brett Cannon | ad07ff2 | 2005-11-23 02:15:50 +0000 | [diff] [blame] | 369 | - Patch #1314396: prevent deadlock for threading.Thread.join() when an exception |
| 370 | is raised within the method itself on a previous call (e.g., passing in an |
| 371 | illegal argument) |
| 372 | |
Brett Cannon | 5d0bf94 | 2005-11-02 23:04:26 +0000 | [diff] [blame] | 373 | - Bug #1340337: change time.strptime() to always return ValueError when there |
| 374 | is an error in the format string. |
| 375 | |
Georg Brandl | e8f2443 | 2005-10-03 14:16:44 +0000 | [diff] [blame] | 376 | - Patch #754022: Greatly enhanced webbrowser.py (by Oleg Broytmann). |
| 377 | |
Walter Dörwald | a05834e | 2005-10-09 19:38:21 +0000 | [diff] [blame] | 378 | - Bug #729103: pydoc.py: Fix docother() method to accept additional |
Georg Brandl | 8b813db | 2005-10-01 16:32:31 +0000 | [diff] [blame] | 379 | "parent" argument. |
| 380 | |
Georg Brandl | aa93517 | 2005-09-29 20:49:16 +0000 | [diff] [blame] | 381 | - Patch #1300515: xdrlib.py: Fix pack_fstring() to really use null bytes |
| 382 | for padding. |
| 383 | |
Georg Brandl | 80ba8e8 | 2005-09-29 20:16:07 +0000 | [diff] [blame] | 384 | - Bug #1296004: httplib.py: Limit maximal amount of data read from the |
| 385 | socket to avoid a MemoryError on Windows. |
| 386 | |
Matthias Klose | f3f231f | 2005-09-20 07:02:49 +0000 | [diff] [blame] | 387 | - Patch #1166948: locale.py: Prefer LC_ALL, LC_CTYPE and LANG over LANGUAGE |
| 388 | to get the correct encoding. |
| 389 | |
| 390 | - Patch #1166938: locale.py: Parse LANGUAGE as a colon separated list of |
| 391 | languages. |
| 392 | |
Martin v. Löwis | 4ed6738 | 2005-09-18 08:34:39 +0000 | [diff] [blame] | 393 | - Patch #1268314: Cache lines in StreamReader.readlines for performance. |
| 394 | |
Brett Cannon | a783d06 | 2005-09-15 02:34:56 +0000 | [diff] [blame] | 395 | - Bug #1290505: Fix clearing the regex cache for time.strptime(). |
| 396 | |
Martin v. Löwis | 5dbdc59 | 2005-08-27 10:07:56 +0000 | [diff] [blame] | 397 | - Bug #1167128: Fix size of a symlink in a tarfile to be 0. |
| 398 | |
Georg Brandl | 5a650a2 | 2005-08-26 08:51:34 +0000 | [diff] [blame] | 399 | - Patch #810023: Fix off-by-one bug in urllib.urlretrieve reporthook |
| 400 | functionality. |
| 401 | |
Martin v. Löwis | 8b59514 | 2005-08-25 11:03:38 +0000 | [diff] [blame] | 402 | - Bug #1163178: Make IDNA return an empty string when the input is empty. |
| 403 | |
Georg Brandl | 532efab | 2005-08-24 22:34:21 +0000 | [diff] [blame] | 404 | - Patch #848017: Make Cookie more RFC-compliant. Use CRLF as default output |
| 405 | separator and do not output trailing semicola. |
| 406 | |
Georg Brandl | b925602 | 2005-08-24 18:46:39 +0000 | [diff] [blame] | 407 | - Patch #1062060: urllib.urlretrieve() now raises a new exception, named |
| 408 | ContentTooShortException, when the actually downloaded size does not |
| 409 | match the Content-Length header. |
| 410 | |
Martin v. Löwis | 0a5d4a2 | 2005-08-24 14:55:22 +0000 | [diff] [blame] | 411 | - Bug #1121494: distutils.dir_utils.mkpath now accepts Unicode strings. |
| 412 | |
Martin v. Löwis | 56066d2 | 2005-08-24 07:38:12 +0000 | [diff] [blame] | 413 | - Bug #1178484: Return complete lines from codec stream readers |
| 414 | even if there is an exception in later lines, resulting in |
Walter Dörwald | a05834e | 2005-10-09 19:38:21 +0000 | [diff] [blame] | 415 | correct line numbers for decoding errors in source code. |
Martin v. Löwis | 56066d2 | 2005-08-24 07:38:12 +0000 | [diff] [blame] | 416 | |
Georg Brandl | 6d2b346 | 2005-08-24 07:36:17 +0000 | [diff] [blame] | 417 | - Bug #1192315: Disallow negative arguments to clear() in pdb. |
| 418 | |
Martin v. Löwis | b813c53 | 2005-08-07 20:51:04 +0000 | [diff] [blame] | 419 | - Patch #827386: Support absolute source paths in msvccompiler.py. |
| 420 | |
Georg Brandl | 649f8e7 | 2005-08-03 07:30:12 +0000 | [diff] [blame] | 421 | - Patch #1105730: Apply the new implementation of commonprefix in posixpath |
| 422 | to ntpath, macpath, os2emxpath and riscospath. |
| 423 | |
Guido van Rossum | 755149f | 2005-07-27 00:00:44 +0000 | [diff] [blame] | 424 | - Fix a problem in Tkinter introduced by SF patch #869468: delete bogus |
| 425 | __hasattr__ and __delattr__ methods on class Tk that were breaking |
| 426 | Tkdnd. |
| 427 | |
Georg Brandl | 5dbda75 | 2005-07-17 20:27:41 +0000 | [diff] [blame] | 428 | - Bug #1015140: disambiguated the term "article id" in nntplib docs and |
| 429 | docstrings to either "article number" or "message id". |
| 430 | |
Georg Brandl | a4a8b82 | 2005-07-15 09:13:21 +0000 | [diff] [blame] | 431 | - Bug #1238170: threading.Thread.__init__ no longer has "kwargs={}" as a |
| 432 | parameter, but uses the usual "kwargs=None". |
| 433 | |
Andrew M. Kuchling | 88b8582 | 2005-08-23 00:57:07 +0000 | [diff] [blame] | 434 | - textwrap now processes text chunks at O(n) speed instead of O(n**2). |
Raymond Hettinger | 8bfa893 | 2005-07-15 06:53:35 +0000 | [diff] [blame] | 435 | Patch #1209527 (Contributed by Connelly). |
| 436 | |
Georg Brandl | 5c5fe2f | 2005-07-14 06:40:47 +0000 | [diff] [blame] | 437 | - urllib2 has now an attribute 'httpresponses' mapping from HTTP status code |
| 438 | to W3C name (404 -> 'Not Found'). RFE #1216944. |
| 439 | |
Georg Brandl | 9e43acf | 2005-07-04 17:16:07 +0000 | [diff] [blame] | 440 | - Bug #1177468: Don't cache the /dev/urandom file descriptor for os.urandom, |
| 441 | as this can cause problems with apps closing all file descriptors. |
| 442 | |
Georg Brandl | 5284b53 | 2005-06-26 22:54:58 +0000 | [diff] [blame] | 443 | - Bug #839151: Fix an attempt to access sys.argv in the warnings module |
Andrew M. Kuchling | 88b8582 | 2005-08-23 00:57:07 +0000 | [diff] [blame] | 444 | it can be missing in embedded interpreters |
Georg Brandl | 5284b53 | 2005-06-26 22:54:58 +0000 | [diff] [blame] | 445 | |
Georg Brandl | 2f210b6 | 2005-06-26 22:09:06 +0000 | [diff] [blame] | 446 | - Bug #1155638: Fix a bug which affected HTTP 0.9 responses in httplib. |
| 447 | |
Georg Brandl | fbff1bc | 2005-06-26 21:36:25 +0000 | [diff] [blame] | 448 | - Bug #1100201: Cross-site scripting was possible on BaseHTTPServer via |
| 449 | error messages. |
| 450 | |
Georg Brandl | 379f99d | 2005-06-26 21:09:38 +0000 | [diff] [blame] | 451 | - Bug #1108948: Cookie.py produced invalid JavaScript code. |
| 452 | |
Raymond Hettinger | da99d1c | 2005-06-21 07:43:58 +0000 | [diff] [blame] | 453 | - The tokenize module now detects and reports indentation errors. |
| 454 | Bug #1224621. |
| 455 | |
Raymond Hettinger | 68c0453 | 2005-06-10 11:05:19 +0000 | [diff] [blame] | 456 | - The tokenize module has a new untokenize() function to support a full |
| 457 | roundtrip from lexed tokens back to Python sourcecode. In addition, |
| 458 | the generate_tokens() function now accepts a callable argument that |
| 459 | terminates by raising StopIteration. |
| 460 | |
Georg Brandl | 9166e1a | 2005-06-04 09:20:03 +0000 | [diff] [blame] | 461 | - Bug #1196315: fix weakref.WeakValueDictionary constructor. |
| 462 | |
Georg Brandl | 268e61c | 2005-06-03 14:28:50 +0000 | [diff] [blame] | 463 | - Bug #1213894: os.path.realpath didn't resolve symlinks that were the first |
| 464 | component of the path. |
| 465 | |
Skip Montanaro | 174dd22 | 2005-05-14 20:54:16 +0000 | [diff] [blame] | 466 | - Patch #1120353: The xmlrpclib module provides better, more transparent, |
| 467 | support for datetime.{datetime,date,time} objects. With use_datetime set |
| 468 | to True, applications shouldn't have to fiddle with the DateTime wrapper |
| 469 | class at all. |
| 470 | |
Martin v. Löwis | 55f1bb8 | 2005-03-21 20:56:35 +0000 | [diff] [blame] | 471 | - distutils.commands.upload was added to support uploading distribution |
| 472 | files to PyPI. |
| 473 | |
Walter Dörwald | a6e8a4a | 2005-03-31 13:57:38 +0000 | [diff] [blame] | 474 | - distutils.commands.register now encodes the data as UTF-8 before posting |
| 475 | them to PyPI. |
| 476 | |
Raymond Hettinger | 267b868 | 2005-03-27 10:47:39 +0000 | [diff] [blame] | 477 | - decimal operator and comparison methods now return NotImplemented |
| 478 | instead of raising a TypeError when interacting with other types. This |
| 479 | allows other classes to implement __radd__ style methods and have them |
| 480 | work as expected. |
| 481 | |
Raymond Hettinger | bea3f6f | 2005-03-15 04:59:17 +0000 | [diff] [blame] | 482 | - Bug #1163325: Decimal infinities failed to hash. Attempting to |
| 483 | hash a NaN raised an InvalidOperation instead of a TypeError. |
| 484 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 485 | - Patch #918101: Add tarfile open mode r|* for auto-detection of the |
Martin v. Löwis | 78be7df | 2005-03-05 12:47:42 +0000 | [diff] [blame] | 486 | stream compression; add, for symmetry reasons, r:* as a synonym of r. |
| 487 | |
Martin v. Löwis | 00a73e7 | 2005-03-04 19:40:34 +0000 | [diff] [blame] | 488 | - Patch #1043890: Add extractall method to tarfile. |
| 489 | |
Martin v. Löwis | c72dd38 | 2005-03-04 13:50:17 +0000 | [diff] [blame] | 490 | - Patch #1075887: Don't require MSVC in distutils if there is nothing |
| 491 | to build. |
| 492 | |
Martin v. Löwis | 637431b | 2005-03-03 23:12:42 +0000 | [diff] [blame] | 493 | - Patch #1103407: Properly deal with tarfile iterators when untarring |
| 494 | symbolic links on Windows. |
| 495 | |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 496 | - Patch #645894: Use getrusage for computing the time consumption in |
Martin v. Löwis | a4dac40 | 2005-03-03 11:39:45 +0000 | [diff] [blame] | 497 | profile.py if available. |
| 498 | |
Martin v. Löwis | df37c8c | 2005-03-03 11:08:03 +0000 | [diff] [blame] | 499 | - Patch #1046831: Use get_python_version where appropriate in sysconfig.py. |
| 500 | |
Martin v. Löwis | c5574e8 | 2005-03-03 10:57:37 +0000 | [diff] [blame] | 501 | - Patch #1117454: Remove code to special-case cookies without values |
| 502 | in LWPCookieJar. |
| 503 | |
Martin v. Löwis | 4ea3ead | 2005-03-03 10:48:12 +0000 | [diff] [blame] | 504 | - Patch #1117339: Add cookielib special name tests. |
| 505 | |
Martin v. Löwis | e869eb1 | 2005-03-03 09:46:07 +0000 | [diff] [blame] | 506 | - Patch #1112812: Make bsddb/__init__.py more friendly for modulefinder. |
| 507 | |
Martin v. Löwis | f2a8d63 | 2005-03-03 08:35:22 +0000 | [diff] [blame] | 508 | - Patch #1110248: SYNC_FLUSH the zlib buffer for GZipFile.flush. |
| 509 | |
Martin v. Löwis | df24153 | 2005-03-03 08:17:42 +0000 | [diff] [blame] | 510 | - Patch #1107973: Allow to iterate over the lines of a tarfile.ExFileObject. |
| 511 | |
Martin v. Löwis | 8ed338a | 2005-03-03 08:12:27 +0000 | [diff] [blame] | 512 | - Patch #1104111: Alter setup.py --help and --help-commands. |
| 513 | |
Martin v. Löwis | 4afe154 | 2005-03-01 08:09:28 +0000 | [diff] [blame] | 514 | - Patch #1121234: Properly cleanup _exit and tkerror commands. |
| 515 | |
Martin v. Löwis | c2a0ac2 | 2005-02-24 20:22:10 +0000 | [diff] [blame] | 516 | - Patch #1049151: xdrlib now unpacks booleans as True or False. |
| 517 | |
Raymond Hettinger | bab4143 | 2005-02-05 01:31:19 +0000 | [diff] [blame] | 518 | - Fixed bug in a NameError bug in cookielib. Patch #1116583. |
| 519 | |
Guido van Rossum | d064142 | 2005-02-03 15:01:24 +0000 | [diff] [blame] | 520 | - Applied a security fix to SimpleXMLRPCserver (PSF-2005-001). This |
| 521 | disables recursive traversal through instance attributes, which can |
| 522 | be exploited in various ways. |
| 523 | |
Tim Peters | e3547fd | 2005-12-16 23:13:57 +0000 | [diff] [blame] | 524 | - Bug #1222790: in SimpleXMLRPCServer, set the reuse-address and close-on-exec |
Andrew M. Kuchling | 3a97605 | 2005-12-04 15:07:41 +0000 | [diff] [blame] | 525 | flags on the HTTP listening socket. |
| 526 | |
Andrew M. Kuchling | e63fde7 | 2005-12-04 15:36:57 +0000 | [diff] [blame] | 527 | - Bug #792570: SimpleXMLRPCServer had problems if the request grew too large. |
| 528 | Fixed by reading the HTTP body in chunks instead of one big socket.read(). |
| 529 | |
Tim Peters | e3547fd | 2005-12-16 23:13:57 +0000 | [diff] [blame] | 530 | - Patches #893642, #1039083: add allow_none, encoding arguments to constructors of |
Andrew M. Kuchling | 10a16de | 2005-12-04 16:34:40 +0000 | [diff] [blame] | 531 | SimpleXMLRPCServer and CGIXMLRPCRequestHandler. |
| 532 | |
Martin v. Löwis | 1d11de6 | 2005-01-29 13:29:23 +0000 | [diff] [blame] | 533 | - Bug #1110478: Revert os.environ.update to do putenv again. |
| 534 | |
Thomas Heller | d6c6e22 | 2005-01-20 19:20:16 +0000 | [diff] [blame] | 535 | - Bug #1103844: fix distutils.install.dump_dirs() with negated options. |
| 536 | |
Martin v. Löwis | 22b457e | 2005-01-16 08:40:58 +0000 | [diff] [blame] | 537 | - os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience. |
| 538 | |
Andrew McNamara | a08eecb | 2005-01-12 03:25:27 +0000 | [diff] [blame] | 539 | - Enhancements to the csv module: |
| 540 | |
| 541 | + Dialects are now validated by the underlying C code, better |
Georg Brandl | 7eb4b7d | 2005-07-22 21:49:32 +0000 | [diff] [blame] | 542 | reflecting its capabilities, and improving its compliance with |
Tim Peters | ecc6e6a | 2005-07-10 22:30:55 +0000 | [diff] [blame] | 543 | PEP 305. |
Andrew McNamara | a08eecb | 2005-01-12 03:25:27 +0000 | [diff] [blame] | 544 | + Dialect parameter parsing has been re-implemented to improve error |
| 545 | reporting. |
| 546 | + quotechar=None and quoting=QUOTE_NONE now work the way PEP 305 |
| 547 | dictates. |
| 548 | + the parser now removes the escapechar prefix from escaped characters. |
Andrew McNamara | 0f0599d | 2005-01-12 09:45:18 +0000 | [diff] [blame] | 549 | + when quoting=QUOTE_NONNUMERIC, the writer now tests for numeric |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 550 | types, rather than any object than can be represented as a numeric. |
Andrew McNamara | 0f0599d | 2005-01-12 09:45:18 +0000 | [diff] [blame] | 551 | + when quoting=QUOTE_NONNUMERIC, the reader now casts unquoted fields |
| 552 | to floats. |
Andrew McNamara | f69d94f | 2005-01-13 11:30:54 +0000 | [diff] [blame] | 553 | + reader now allows \r characters to be quoted (previously it only allowed |
| 554 | \n to be quoted). |
Andrew McNamara | c89f284 | 2005-01-12 07:44:42 +0000 | [diff] [blame] | 555 | + writer doublequote handling improved. |
Andrew McNamara | a08eecb | 2005-01-12 03:25:27 +0000 | [diff] [blame] | 556 | + Dialect classes passed to the module are no longer instantiated by |
| 557 | the module before being parsed (the former validation scheme required |
| 558 | this, but the mechanism was unreliable). |
| 559 | + The dialect registry now contains instances of the internal |
| 560 | C-coded dialect type, rather than references to python objects. |
| 561 | + the internal c-coded dialect type is now immutable. |
| 562 | + register_dialect now accepts the same keyword dialect specifications |
| 563 | as the reader and writer, allowing the user to register dialects |
| 564 | without first creating a dialect class. |
| 565 | + a configurable limit to the size of parsed fields has been added - |
| 566 | previously, an unmatched quote character could result in the entire |
| 567 | file being read into the field buffer before an error was reported. |
Andrew McNamara | 31d8896 | 2005-01-12 03:45:10 +0000 | [diff] [blame] | 568 | + A new module method csv.field_size_limit() has been added that sets |
Andrew McNamara | a08eecb | 2005-01-12 03:25:27 +0000 | [diff] [blame] | 569 | the parser field size limit (returning the former limit). The initial |
| 570 | limit is 128kB. |
Andrew McNamara | 7f2053e | 2005-01-12 11:17:16 +0000 | [diff] [blame] | 571 | + A line_num attribute has been added to the reader object, which tracks |
| 572 | the number of lines read from the source iterator. This is not |
| 573 | the same as the number of records returned, as records can span |
| 574 | multiple lines. |
Andrew McNamara | a08eecb | 2005-01-12 03:25:27 +0000 | [diff] [blame] | 575 | + reader and writer objects were not being registered with the cyclic-GC. |
| 576 | This has been fixed. |
| 577 | |
Brett Cannon | e6539c4 | 2005-01-08 02:43:53 +0000 | [diff] [blame] | 578 | - _DummyThread objects in the threading module now delete self.__block that is |
| 579 | inherited from _Thread since it uses up a lock allocated by 'thread'. The |
| 580 | lock primitives tend to be limited in number and thus should not be wasted on |
| 581 | a _DummyThread object. Fixes bug #1089632. |
| 582 | |
Raymond Hettinger | 97db05d | 2005-01-07 08:15:41 +0000 | [diff] [blame] | 583 | - The imghdr module now detects Exif files. |
| 584 | |
Raymond Hettinger | 6065d32 | 2004-12-20 23:51:53 +0000 | [diff] [blame] | 585 | - StringIO.truncate() now correctly adjusts the size attribute. |
| 586 | (Bug #951915). |
| 587 | |
Marc-André Lemburg | bb4f1bd | 2004-12-10 21:58:14 +0000 | [diff] [blame] | 588 | - locale.py now uses an updated locale alias table (built using |
| 589 | Tools/i18n/makelocalealias.py, a tool to parse the X11 locale |
| 590 | alias file); the encoding lookup was enhanced to use Python's |
Andrew M. Kuchling | 88b8582 | 2005-08-23 00:57:07 +0000 | [diff] [blame] | 591 | encoding alias table. |
Marc-André Lemburg | bb4f1bd | 2004-12-10 21:58:14 +0000 | [diff] [blame] | 592 | |
Raymond Hettinger | 3557f42 | 2004-12-07 12:02:02 +0000 | [diff] [blame] | 593 | - moved deprecated modules to Lib/lib-old: whrandom, tzparse, statcache. |
| 594 | |
Raymond Hettinger | a6b45cc | 2004-12-07 07:05:57 +0000 | [diff] [blame] | 595 | - the pickle module no longer accepts the deprecated None option in the |
| 596 | args tuple returned by __reduce__(). |
| 597 | |
Brett Cannon | 84667c0 | 2004-12-07 03:25:18 +0000 | [diff] [blame] | 598 | - optparse now optionally imports gettext. This allows its use in setup.py. |
| 599 | |
Raymond Hettinger | 3489cad | 2004-12-05 05:20:42 +0000 | [diff] [blame] | 600 | - the pickle module no longer uses the deprecated bin parameter. |
| 601 | |
Raymond Hettinger | 1bc82f8 | 2004-12-05 03:58:17 +0000 | [diff] [blame] | 602 | - the shelve module no longer uses the deprecated binary parameter. |
| 603 | |
Raymond Hettinger | 6c92d76 | 2004-12-05 03:28:00 +0000 | [diff] [blame] | 604 | - the pstats module no longer uses the deprecated ignore() method. |
| 605 | |
Raymond Hettinger | f3fa946 | 2004-12-05 01:58:09 +0000 | [diff] [blame] | 606 | - the filecmp module no longer uses the deprecated use_statcache argument. |
| 607 | |
Raymond Hettinger | 664347b | 2004-12-04 21:21:53 +0000 | [diff] [blame] | 608 | - unittest.TestCase.run() and unittest.TestSuite.run() can now be successfully |
| 609 | extended or overridden by subclasses. Formerly, the subclassed method would |
| 610 | be ignored by the rest of the module. (Bug #1078905). |
| 611 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 612 | - heapq.nsmallest() and heapq.nlargest() now support key= arguments with |
Raymond Hettinger | 3b0c7c2 | 2004-12-03 08:30:39 +0000 | [diff] [blame] | 613 | the same meaning as in list.sort(). |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 614 | |
Walter Dörwald | 3673369 | 2004-12-22 12:50:50 +0000 | [diff] [blame] | 615 | - Bug #1076985: ``codecs.StreamReader.readline()`` now calls ``read()`` only |
| 616 | once when a size argument is given. This prevents a buffer overflow in the |
| 617 | tokenizer with very long source lines. |
| 618 | |
Barry Warsaw | 538561e | 2006-01-01 21:48:54 +0000 | [diff] [blame] | 619 | - Bug #1083110: ``zlib.decompress.flush()`` would segfault if called |
| 620 | immediately after creating the object, without any intervening |
| 621 | ``.decompress()`` calls. |
Andrew M. Kuchling | 3b585b3 | 2004-12-28 20:10:48 +0000 | [diff] [blame] | 622 | |
Skip Montanaro | 0588581 | 2005-01-16 20:48:27 +0000 | [diff] [blame] | 623 | - The reconvert.quote function can now emit triple-quoted strings. The |
| 624 | reconvert module now has some simple documentation. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 625 | |
Walter Dörwald | af3b39a | 2005-02-18 13:22:43 +0000 | [diff] [blame] | 626 | - ``UserString.MutableString`` now supports negative indices in |
| 627 | ``__setitem__`` and ``__delitem__`` |
| 628 | |
Greg Ward | 4040794 | 2005-03-05 02:53:17 +0000 | [diff] [blame] | 629 | - Bug #1149508: ``textwrap`` now handles hyphenated numbers (eg. "2004-03-05") |
| 630 | correctly. |
| 631 | |
Walter Dörwald | bc8e642 | 2005-04-21 21:32:03 +0000 | [diff] [blame] | 632 | - Partial fixes for SF bugs #1163244 and #1175396: If a chunk read by |
| 633 | ``codecs.StreamReader.readline()`` has a trailing "\r", read one more |
| 634 | character even if the user has passed a size parameter to get a proper |
| 635 | line ending. Remove the special handling of a "\r\n" that has been split |
| 636 | between two lines. |
| 637 | |
Walter Dörwald | a47d1c0 | 2005-08-30 10:23:14 +0000 | [diff] [blame] | 638 | - Bug #1251300: On UCS-4 builds the "unicode-internal" codec will now complain |
| 639 | about illegal code points. The codec now supports PEP 293 style error |
| 640 | handlers. |
| 641 | |
Walter Dörwald | 78a78b0 | 2005-09-01 12:04:29 +0000 | [diff] [blame] | 642 | - Bug #1235646: ``codecs.StreamRecoder.next()`` now reencodes the data it reads |
Walter Dörwald | c5238b8 | 2005-09-01 11:56:53 +0000 | [diff] [blame] | 643 | from the input stream, so that the output is a byte string in the correct |
| 644 | encoding instead of a unicode string. |
Greg Ward | 4040794 | 2005-03-05 02:53:17 +0000 | [diff] [blame] | 645 | |
Gustavo Niemeyer | 6fa0c5a | 2005-09-14 08:54:39 +0000 | [diff] [blame] | 646 | - Bug #1202493: Fixing SRE parser to handle '{}' as perl does, rather than |
| 647 | considering it exactly like a '*'. |
| 648 | |
Walter Dörwald | 007f8df | 2005-10-09 19:42:27 +0000 | [diff] [blame] | 649 | - Bug #1245379: Add "unicode-1-1-utf-7" as an alias for "utf-7" to |
| 650 | ``encodings.aliases``. |
Gustavo Niemeyer | 6fa0c5a | 2005-09-14 08:54:39 +0000 | [diff] [blame] | 651 | |
Walter Dörwald | 09f0dd5 | 2005-11-21 19:10:07 +0000 | [diff] [blame] | 652 | - ` uu.encode()`` and ``uu.decode()`` now support unicode filenames. |
| 653 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 654 | Build |
| 655 | ----- |
| 656 | |
Martin v. Löwis | fd9a72a | 2006-01-08 10:07:33 +0000 | [diff] [blame] | 657 | - Patch #881820: look for openpty and forkpty also in libbsd. |
| 658 | |
Martin v. Löwis | 64c33dd | 2006-01-03 07:42:14 +0000 | [diff] [blame] | 659 | - The sources of zlib are now part of the Python distribution (zlib 1.2.3). |
| 660 | The zlib module is now builtin on Windows. |
| 661 | |
Martin v. Löwis | d5845ec | 2005-12-30 12:31:38 +0000 | [diff] [blame] | 662 | - Use -xcode=pic32 for CCSHARED on Solaris with SunPro. |
| 663 | |
Martin v. Löwis | 147fbe5 | 2005-08-07 21:09:30 +0000 | [diff] [blame] | 664 | - Bug #1189330: configure did not correctly determine the necessary |
| 665 | value of LINKCC if python was built with GCC 4.0. |
| 666 | |
Trent Mick | 8321b42 | 2005-07-26 02:29:21 +0000 | [diff] [blame] | 667 | - Upgrade Windows build to zlib 1.2.3 which eliminates a potential security |
| 668 | vulnerability in zlib 1.2.1 and 1.2.2. |
| 669 | |
Brett Cannon | 08cd598 | 2005-04-24 22:26:38 +0000 | [diff] [blame] | 670 | - EXTRA_CFLAGS has been introduced as an environment variable to hold compiler |
| 671 | flags that change binary compatibility. Changes were also made to |
| 672 | distutils.sysconfig to also use the environment variable when used during |
Martin v. Löwis | d7c795e | 2005-04-25 07:14:03 +0000 | [diff] [blame] | 673 | compilation of the interpreter and of C extensions through distutils. |
Brett Cannon | 08cd598 | 2005-04-24 22:26:38 +0000 | [diff] [blame] | 674 | |
Bob Ippolito | ed23346 | 2005-03-29 13:47:59 +0000 | [diff] [blame] | 675 | - SF patch 1171735: Darwin 8's headers are anal about POSIX compliance, |
| 676 | and linking has changed (prebinding is now deprecated, and libcc_dynamic |
| 677 | no longer exists). This configure patch makes things right. |
| 678 | |
Martin v. Löwis | e2713be | 2005-03-08 15:03:08 +0000 | [diff] [blame] | 679 | - Bug #1158607: Build with --disable-unicode again. |
| 680 | |
Brett Cannon | 46d9623 | 2005-02-16 00:07:19 +0000 | [diff] [blame] | 681 | - spwdmodule.c is built only if either HAVE_GETSPNAM or HAVE_HAVE_GETSPENT is |
| 682 | defined. Discovered as a result of not being able to build on OS X. |
| 683 | |
Brett Cannon | 516592f | 2004-12-07 00:42:59 +0000 | [diff] [blame] | 684 | - setup.py now uses the directories specified in LDFLAGS using the -L option |
| 685 | and in CPPFLAGS using the -I option for adding library and include |
| 686 | directories, respectively, for compiling extension modules against. This has |
| 687 | led to the core being compiled using the values in CPPFLAGS. It also removes |
| 688 | the need for the special-casing of both DarwinPorts and Fink for darwin since |
| 689 | the proper directories can be specified in LDFLAGS (``-L/sw/lib`` for Fink, |
| 690 | ``-L/opt/local/lib`` for DarwinPorts) and CPPFLAGS (``-I/sw/include`` for |
| 691 | Fink, ``-I/opt/local/include`` for DarwinPorts). |
| 692 | |
Brett Cannon | 4380242 | 2005-02-10 20:48:03 +0000 | [diff] [blame] | 693 | - Test in configure.in that checks for tzset no longer dependent on tm->tm_zone |
| 694 | to exist in the struct (not required by either ISO C nor the UNIX 2 spec). |
| 695 | Tests for sanity in tzname when HAVE_TZNAME defined were also defined. |
| 696 | Closes bug #1096244. Thanks Gregory Bond. |
| 697 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 698 | C API |
| 699 | ----- |
| 700 | |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 701 | - Added a C API for set and frozenset objects. |
| 702 | |
Raymond Hettinger | 6651748 | 2004-12-03 11:45:13 +0000 | [diff] [blame] | 703 | - Removed PyRange_New(). |
| 704 | |
Walter Dörwald | d1c1e10 | 2005-10-06 20:29:57 +0000 | [diff] [blame] | 705 | - Patch #1313939: PyUnicode_DecodeCharmap() accepts a unicode string as the |
| 706 | mapping argument now. This string is used as a mapping table. Byte values |
| 707 | greater than the length of the string and 0xFFFE are treated as undefined |
| 708 | mappings. |
| 709 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 710 | |
| 711 | Tests |
| 712 | ----- |
| 713 | |
Martin v. Löwis | 4d394df | 2005-01-23 09:19:22 +0000 | [diff] [blame] | 714 | - In test_os, st_?time is now truncated before comparing it with ST_?TIME. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 715 | |
Hye-Shik Chang | aaa2f1d | 2005-12-10 17:44:27 +0000 | [diff] [blame] | 716 | - Patch #1276356: New resource "urlfetch" is implemented. This enables |
| 717 | even impatient people to run tests that require remote files. |
| 718 | |
Brett Cannon | ced04e0 | 2005-02-13 22:53:22 +0000 | [diff] [blame] | 719 | |
| 720 | Documentation |
| 721 | ------------- |
| 722 | |
Georg Brandl | 3225242 | 2005-09-14 20:42:00 +0000 | [diff] [blame] | 723 | - Bug #1274828: Document os.path.splitunc(). |
| 724 | |
Georg Brandl | 79c122f | 2005-08-24 07:31:33 +0000 | [diff] [blame] | 725 | - Bug #1190204: Clarify which directories are searched by site.py. |
| 726 | |
Georg Brandl | 6f2bbd3 | 2005-08-24 07:26:55 +0000 | [diff] [blame] | 727 | - Bug #1193849: Clarify os.path.expanduser() documentation. |
| 728 | |
Georg Brandl | f13c4ba | 2005-08-02 10:28:08 +0000 | [diff] [blame] | 729 | - Bug #1243192: re.UNICODE and re.LOCALE affect \d, \D, \s and \S. |
| 730 | |
Georg Brandl | 150db73 | 2005-07-18 08:53:17 +0000 | [diff] [blame] | 731 | - Bug #755617: Document the effects of os.chown() on Windows. |
| 732 | |
Georg Brandl | 379f99d | 2005-06-26 21:09:38 +0000 | [diff] [blame] | 733 | - Patch #1180012: The documentation for modulefinder is now in the library reference. |
| 734 | |
| 735 | - Patch #1213031: Document that os.chown() accepts argument values of -1. |
| 736 | |
| 737 | - Bug #1190563: Document os.waitpid() return value with WNOHANG flag. |
| 738 | |
| 739 | - Bug #1175022: Correct the example code for property(). |
| 740 | |
Georg Brandl | 40c7165 | 2005-06-25 21:08:46 +0000 | [diff] [blame] | 741 | - Document the IterableUserDict class in the UserDict module. |
| 742 | Closes bug #1166582. |
| 743 | |
Brett Cannon | ced04e0 | 2005-02-13 22:53:22 +0000 | [diff] [blame] | 744 | - Remove all latent references for "Macintosh" that referred to semantics for |
| 745 | Mac OS 9 and change to reflect the state for OS X. |
| 746 | Closes patch #1095802. Thanks Jack Jansen. |
| 747 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 748 | Mac |
| 749 | --- |
| 750 | |
| 751 | |
Hye-Shik Chang | 4e42281 | 2005-07-17 02:36:59 +0000 | [diff] [blame] | 752 | New platforms |
| 753 | ------------- |
| 754 | |
| 755 | - FreeBSD 7 support is added. |
| 756 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 757 | |
| 758 | Tools/Demos |
| 759 | ----------- |
| 760 | |
Georg Brandl | 5689731 | 2005-08-24 18:32:30 +0000 | [diff] [blame] | 761 | - Added two new files to Tools/scripts: pysource.py, which recursively |
| 762 | finds Python source files, and findnocoding.py, which finds Python |
| 763 | source files that need an encoding declaration. |
| 764 | Patch #784089, credits to Oleg Broytmann. |
| 765 | |
Georg Brandl | 379f99d | 2005-06-26 21:09:38 +0000 | [diff] [blame] | 766 | - Bug #1072853: pindent.py used an uninitialized variable. |
| 767 | |
Martin v. Löwis | ab9ec16 | 2005-04-09 10:53:34 +0000 | [diff] [blame] | 768 | - Patch #1177597: Correct Complex.__init__. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 769 | |
Barry Warsaw | 538561e | 2006-01-01 21:48:54 +0000 | [diff] [blame] | 770 | - Fixed a display glitch in Pynche, which could cause the right arrow to |
| 771 | wiggle over by a pixel. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 772 | |
Anthony Baxter | e2648ee | 2004-11-30 01:28:55 +0000 | [diff] [blame] | 773 | What's New in Python 2.4 final? |
| 774 | =============================== |
Kurt B. Kaiser | 4c79a83 | 2004-11-23 18:06:08 +0000 | [diff] [blame] | 775 | |
Anthony Baxter | e2648ee | 2004-11-30 01:28:55 +0000 | [diff] [blame] | 776 | *Release date: 30-NOV-2004* |
Kurt B. Kaiser | 4c79a83 | 2004-11-23 18:06:08 +0000 | [diff] [blame] | 777 | |
| 778 | Core and builtins |
| 779 | ----------------- |
| 780 | |
| 781 | - Bug 875692: Improve signal handling, especially when using threads, by |
| 782 | forcing an early re-execution of PyEval_EvalFrame() "periodic" code when |
| 783 | things_to_do is not cleared by Py_MakePendingCalls(). |
| 784 | |
| 785 | |
Anthony Baxter | 4277ed8 | 2004-11-30 11:53:10 +0000 | [diff] [blame] | 786 | What's New in Python 2.4 (release candidate 1) |
| 787 | ============================================== |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 788 | |
Anthony Baxter | 5cc727a | 2004-11-18 12:32:27 +0000 | [diff] [blame] | 789 | *Release date: 18-NOV-2004* |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 790 | |
| 791 | Core and builtins |
| 792 | ----------------- |
| 793 | |
Tim Peters | fb1ffb0 | 2004-11-08 04:30:21 +0000 | [diff] [blame] | 794 | - Bug 1061968: Fixes in 2.4a3 to address thread bug 1010677 reintroduced |
| 795 | the years-old thread shutdown race bug 225673. Numeric history lesson |
| 796 | aside, all bugs in all three reports are fixed now. |
| 797 | |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 798 | |
Skip Montanaro | 599bd5e | 2004-11-04 04:31:30 +0000 | [diff] [blame] | 799 | Library |
| 800 | ------- |
| 801 | |
| 802 | - Bug 1052242: If exceptions are raised by an atexit handler function an |
| 803 | attempt is made to execute the remaining handlers. The last exception |
| 804 | raised is re-raised. |
| 805 | |
Tim Peters | 50c6bdb | 2004-11-08 22:07:37 +0000 | [diff] [blame] | 806 | - ``doctest``'s new support for adding ``pdb.set_trace()`` calls to |
| 807 | doctests was broken in a dramatic but shallow way. Fixed. |
| 808 | |
Tim Peters | bbc0d44 | 2004-11-13 16:18:32 +0000 | [diff] [blame] | 809 | - Bug 1065388: ``calendar``'s ``day_name``, ``day_abbr``, ``month_name``, |
| 810 | and ``month_abbr`` attributes emulate sequences of locale-correct |
| 811 | spellings of month and day names. Because the locale can change at |
| 812 | any time, the correct spelling is recomputed whenever one of these is |
| 813 | indexed. In the worst case, the index may be a slice object, so these |
| 814 | recomputed every day or month name each time they were indexed. This is |
| 815 | much slower than necessary in the usual case, when the index is just an |
| 816 | integer. In that case, only the single spelling needed is recomputed |
| 817 | now; and, when the index is a slice object, only the spellings needed |
| 818 | by the slice are recomputed now. |
| 819 | |
Tim Peters | 50c6bdb | 2004-11-08 22:07:37 +0000 | [diff] [blame] | 820 | - Patch 1061679: Added ``__all__`` to pickletools.py. |
Tim Peters | 90cf212 | 2004-11-06 23:45:48 +0000 | [diff] [blame] | 821 | |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 822 | Build |
| 823 | ----- |
Skip Montanaro | 599bd5e | 2004-11-04 04:31:30 +0000 | [diff] [blame] | 824 | |
Brett Cannon | 7d28e96 | 2004-11-07 01:19:00 +0000 | [diff] [blame] | 825 | - Bug 1034277 / Patch 1035255: Remove compilation of core against CoreServices |
| 826 | and CoreFoundation on OS X. Involved removing PyMac_GetAppletScriptFile() |
| 827 | which has no known users. Thanks Bob Ippolito. |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 828 | |
| 829 | C API |
| 830 | ----- |
| 831 | |
Raymond Hettinger | 39e92ea | 2004-11-18 09:41:45 +0000 | [diff] [blame] | 832 | - The PyRange_New() function is deprecated. |
| 833 | |
Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 834 | |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 835 | What's New in Python 2.4 beta 2? |
| 836 | ================================ |
| 837 | |
Anthony Baxter | 9f41f3a | 2004-11-03 06:21:37 +0000 | [diff] [blame] | 838 | *Release date: 03-NOV-2004* |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 839 | |
Tim Peters | acaffe6 | 2004-10-23 03:43:54 +0000 | [diff] [blame] | 840 | License |
| 841 | ------- |
| 842 | |
| 843 | The Python Software Foundation changed the license under which Python |
| 844 | is released, to remove Python version numbers. There were no other |
| 845 | changes to the license. So, for example, wherever the license for |
| 846 | Python 2.3 said "Python 2.3", the new license says "Python". The |
| 847 | intent is to make it possible to refer to the PSF license in a more |
| 848 | durable way. For example, some people say they're confused by that |
| 849 | the Open Source Initiative's entry for the Python Software Foundation |
| 850 | License:: |
| 851 | |
| 852 | http://www.opensource.org/licenses/PythonSoftFoundation.php |
| 853 | |
| 854 | says "Python 2.1.1" all over it, wondering whether it applies only |
| 855 | to Python 2.1.1. |
| 856 | |
| 857 | The official name of the new license is the Python Software Foundation |
| 858 | License Version 2. |
| 859 | |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 860 | Core and builtins |
| 861 | ----------------- |
| 862 | |
Tim Peters | ead8b7a | 2004-10-30 23:09:22 +0000 | [diff] [blame] | 863 | - Bug #1055820 Cyclic garbage collection was not protecting against that |
| 864 | calling a live weakref to a piece of cyclic trash could resurrect an |
| 865 | insane mutation of the trash if any Python code ran during gc (via |
| 866 | running a dead object's __del__ method, running another callback on a |
| 867 | weakref to a dead object, or via any Python code run in any other thread |
| 868 | that managed to obtain the GIL while a __del__ or callback was running |
| 869 | in the thread doing gc). The most likely symptom was "impossible" |
Andrew M. Kuchling | b2a739d | 2005-11-22 15:14:44 +0000 | [diff] [blame] | 870 | ``AttributeError`` exceptions, appearing seemingly at random, on weakly |
Tim Peters | ead8b7a | 2004-10-30 23:09:22 +0000 | [diff] [blame] | 871 | referenced objects. The cure was to clear all weakrefs to unreachable |
| 872 | objects before allowing any callbacks to run. |
| 873 | |
Raymond Hettinger | 561fbf1 | 2004-10-26 01:52:37 +0000 | [diff] [blame] | 874 | - Bug #1054139 _PyString_Resize() now invalidates its cached hash value. |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 875 | |
| 876 | Extension Modules |
| 877 | ----------------- |
| 878 | |
Raymond Hettinger | 9047c8f | 2004-10-24 00:10:06 +0000 | [diff] [blame] | 879 | - Bug #1048870: the compiler now generates distinct code objects for |
| 880 | functions with identical bodies. This was producing confusing |
| 881 | traceback messages which pointed to the function where the code |
| 882 | object was first defined rather than the function being executed. |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 883 | |
| 884 | Library |
| 885 | ------- |
| 886 | |
Barry Warsaw | 8c72eae | 2004-11-01 03:52:43 +0000 | [diff] [blame] | 887 | - Patch #1056967 changes the semantics of Template.safe_substitute() so that |
| 888 | no ValueError is raised on an 'invalid' match group. Now the delimiter is |
| 889 | returned. |
| 890 | |
Raymond Hettinger | 2ef7e6c | 2004-10-24 00:32:24 +0000 | [diff] [blame] | 891 | - Bug #1052503 pdb.runcall() was not passing along keyword arguments. |
| 892 | |
Raymond Hettinger | c64aab8 | 2004-10-20 08:21:57 +0000 | [diff] [blame] | 893 | - Bug #902037: XML.sax.saxutils.prepare_input_source() now combines relative |
| 894 | paths with a base path before checking os.path.isfile(). |
| 895 | |
Raymond Hettinger | e54e726 | 2004-10-20 07:17:16 +0000 | [diff] [blame] | 896 | - The whichdb module can now be run from the command line. |
| 897 | |
Brett Cannon | 8abcc5d | 2004-10-18 01:37:57 +0000 | [diff] [blame] | 898 | - Bug #1045381: time.strptime() can now infer the date using %U or %W (week of |
| 899 | the year) when the day of the week and year are also specified. |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 900 | |
Andrew M. Kuchling | 0d19bae | 2004-10-19 19:54:41 +0000 | [diff] [blame] | 901 | - Bug #1048816: fix bug in Ctrl-K at start of line in curses.textpad.Textbox |
| 902 | |
Andrew M. Kuchling | 66e80ba | 2004-10-20 11:56:15 +0000 | [diff] [blame] | 903 | - Bug #1017553: fix bug in tarfile.filemode() |
| 904 | |
Hye-Shik Chang | 3376149 | 2004-10-26 09:53:46 +0000 | [diff] [blame] | 905 | - Patch #737473: fix bug that old source code is shown in tracebacks even if |
Hye-Shik Chang | 182ac85 | 2004-10-26 09:16:42 +0000 | [diff] [blame] | 906 | the source code is updated and reloaded. |
| 907 | |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 908 | Build |
| 909 | ----- |
| 910 | |
Hye-Shik Chang | 3376149 | 2004-10-26 09:53:46 +0000 | [diff] [blame] | 911 | - Patch #1044395: --enable-shared is allowed in FreeBSD also. |
Brett Cannon | be8370dc | 2004-10-18 01:32:09 +0000 | [diff] [blame] | 912 | |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 913 | What's New in Python 2.4 beta 1? |
| 914 | ================================ |
| 915 | |
Anthony Baxter | 6a587c1 | 2004-10-15 08:07:21 +0000 | [diff] [blame] | 916 | *Release date: 15-OCT-2004* |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 917 | |
| 918 | Core and builtins |
| 919 | ----------------- |
| 920 | |
Tim Peters | acaffe6 | 2004-10-23 03:43:54 +0000 | [diff] [blame] | 921 | - Patch #975056: Restartable signals were not correctly disabled on |
Anthony Baxter | e4f8a48 | 2004-10-13 14:55:56 +0000 | [diff] [blame] | 922 | BSD systems. Consistently use PyOS_setsig() instead of signal(). |
| 923 | |
Tim Peters | 263091e | 2004-10-10 01:58:44 +0000 | [diff] [blame] | 924 | - The internal portable implementation of thread-local storage (TLS), used |
| 925 | by the ``PyGILState_Ensure()``/``PyGILState_Release()`` API, was not |
| 926 | thread-correct. This could lead to a variety of problems, up to and |
| 927 | including segfaults. See bug 1041645 for an example. |
| 928 | |
Raymond Hettinger | db29e0f | 2004-10-07 06:46:25 +0000 | [diff] [blame] | 929 | - Added a command line option, -m module, which searches sys.path for the |
| 930 | module and then runs it. (Contributed by Nick Coghlan.) |
| 931 | |
Raymond Hettinger | 2c31a05 | 2004-09-22 18:44:21 +0000 | [diff] [blame] | 932 | - The bytecode optimizer now folds tuples of constants into a single |
| 933 | constant. |
| 934 | |
Tim Peters | 307fa78 | 2004-09-23 08:06:40 +0000 | [diff] [blame] | 935 | - SF bug #513866: Float/long comparison anomaly. Prior to 2.4b1, when |
| 936 | an integer was compared to a float, the integer was coerced to a float. |
| 937 | That could yield spurious overflow errors (if the integer was very |
| 938 | large), and to anomalies such as |
| 939 | ``long(1e200)+1 == 1e200 == long(1e200)-1``. Coercion to float is no |
| 940 | longer performed, and cases like ``long(1e200)-1 < 1e200``, |
| 941 | ``long(1e200)+1 > 1e200`` and ``(1 << 20000) > 1e200`` are computed |
| 942 | correctly now. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 943 | |
| 944 | Extension modules |
| 945 | ----------------- |
| 946 | |
Tim Peters | cf8997f | 2004-10-01 02:13:16 +0000 | [diff] [blame] | 947 | - ``collections.deque`` objects didn't play quite right with garbage |
| 948 | collection, which could lead to a segfault in a release build, or |
Raymond Hettinger | db29e0f | 2004-10-07 06:46:25 +0000 | [diff] [blame] | 949 | an assert failure in a debug build. Also, added overflow checks, |
| 950 | better detection of mutation during iteration, and shielded deque |
| 951 | comparisons from unusual subclass overrides of the __iter__() method. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 952 | |
| 953 | Library |
| 954 | ------- |
Raymond Hettinger | 0318a93 | 2004-09-22 18:03:47 +0000 | [diff] [blame] | 955 | |
Anthony Baxter | a024034 | 2004-10-14 10:02:08 +0000 | [diff] [blame] | 956 | - Patch 1046644: distutils build_ext grew two new options - --swig for |
Tim Peters | acaffe6 | 2004-10-23 03:43:54 +0000 | [diff] [blame] | 957 | specifying the swig executable to use, and --swig-opts to specify |
Anthony Baxter | a024034 | 2004-10-14 10:02:08 +0000 | [diff] [blame] | 958 | options to pass to swig. --swig-opts="-c++" is the new way to spell |
| 959 | --swig-cpp. |
| 960 | |
Anthony Baxter | 22dcf66 | 2004-10-13 15:54:17 +0000 | [diff] [blame] | 961 | - Patch 983206: distutils now obeys environment variable LDSHARED, if |
| 962 | it is set. |
| 963 | |
Andrew M. Kuchling | 518d393 | 2004-10-12 15:32:10 +0000 | [diff] [blame] | 964 | - Added Peter Astrand's subprocess.py module. See PEP 324 for details. |
Fredrik Lundh | 5b3687d | 2004-10-12 15:26:28 +0000 | [diff] [blame] | 965 | |
Brett Cannon | 4f35c71 | 2004-10-06 02:11:37 +0000 | [diff] [blame] | 966 | - time.strptime() now properly escapes timezones and all other locale-specific |
| 967 | strings for regex-specific symbols. Was breaking under Japanese Windows when |
| 968 | the timezone was specified as "Tokyo (standard time)". |
| 969 | Closes bug #1039270. |
| 970 | |
Barry Warsaw | bb11386 | 2004-10-03 03:16:19 +0000 | [diff] [blame] | 971 | - Updates for the email package: |
Brett Cannon | 06a30b0 | 2004-10-22 06:22:54 +0000 | [diff] [blame] | 972 | |
Barry Warsaw | 418de1f | 2004-10-11 14:32:47 +0000 | [diff] [blame] | 973 | + email.Utils.formatdate() grew a 'usegmt' argument for HTTP support. |
Barry Warsaw | bb11386 | 2004-10-03 03:16:19 +0000 | [diff] [blame] | 974 | + All deprecated APIs that in email 2.x issued warnings have been removed: |
| 975 | _encoder argument to the MIMEText constructor, Message.add_payload(), |
| 976 | Utils.dump_address_pair(), Utils.decode(), Utils.encode() |
| 977 | + New deprecations: Generator.__call__(), Message.get_type(), |
| 978 | Message.get_main_type(), Message.get_subtype(), the 'strict' argument to |
| 979 | the Parser constructor. These will be removed in email 3.1. |
| 980 | + Support for Python earlier than 2.3 has been removed (see PEP 291). |
| 981 | + All defect classes have been renamed to end in 'Defect'. |
| 982 | + Some FeedParser fixes; also a MultipartInvariantViolationDefect will be |
| 983 | added to messages that claim to be multipart but really aren't. |
| 984 | + Updates to documentation. |
| 985 | |
Raymond Hettinger | 596ba4d | 2004-09-24 03:41:05 +0000 | [diff] [blame] | 986 | - re's findall() and finditer() functions now take an optional flags argument |
| 987 | just like the compile(), search(), and match() functions. Also, documented |
| 988 | the previously existing start and stop parameters for the findall() and |
| 989 | finditer() methods of regular expression objects. |
| 990 | |
Raymond Hettinger | 0318a93 | 2004-09-22 18:03:47 +0000 | [diff] [blame] | 991 | - rfc822 Messages now support iterating over the headers. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 992 | |
Martin v. Löwis | f3c5611 | 2004-09-18 09:08:52 +0000 | [diff] [blame] | 993 | - The (undocumented) tarfile.Tarfile.membernames has been removed; |
| 994 | applications should use the getmember function. |
| 995 | |
Martin v. Löwis | 39a3178 | 2004-09-18 09:03:49 +0000 | [diff] [blame] | 996 | - httplib now offers symbolic constants for the HTTP status codes. |
| 997 | |
Tim Peters | 528ca53 | 2004-09-16 01:30:50 +0000 | [diff] [blame] | 998 | - SF bug #1028306: Trying to compare a ``datetime.date`` to a |
| 999 | ``datetime.datetime`` mistakenly compared only the year, month and day. |
| 1000 | Now it acts like a mixed-type comparison: ``False`` for ``==``, |
| 1001 | ``True`` for ``!=``, and raises ``TypeError`` for other comparison |
| 1002 | operators. Because datetime is a subclass of date, comparing only the |
| 1003 | base class (date) members can still be done, if that's desired, by |
| 1004 | forcing using of the approprate date method; e.g., |
| 1005 | ``a_date.__eq__(a_datetime)`` is true if and only if the year, month |
| 1006 | and day members of ``a_date`` and ``a_datetime`` are equal. |
| 1007 | |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1008 | - bdist_rpm now supports command line options --force-arch, |
| 1009 | {pre,post}-install, {pre,post}-uninstall, and |
Martin v. Löwis | 23c48a1 | 2004-09-10 06:32:54 +0000 | [diff] [blame] | 1010 | {prep,build,install,clean,verify}-script. |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1011 | |
Walter Dörwald | 6965203 | 2004-09-07 20:24:22 +0000 | [diff] [blame] | 1012 | - SF patch #998993: The UTF-8 and the UTF-16 stateful decoders now support |
| 1013 | decoding incomplete input (when the input stream is temporarily exhausted). |
| 1014 | ``codecs.StreamReader`` now implements buffering, which enables proper |
| 1015 | readline support for the UTF-16 decoders. ``codecs.StreamReader.read()`` |
| 1016 | has a new argument ``chars`` which specifies the number of characters to |
| 1017 | return. ``codecs.StreamReader.readline()`` and |
| 1018 | ``codecs.StreamReader.readlines()`` have a new argument ``keepends``. |
| 1019 | Trailing "\n"s will be stripped from the lines if ``keepends`` is false. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1020 | |
Tim Peters | a80a2c8 | 2004-09-26 05:13:18 +0000 | [diff] [blame] | 1021 | - The documentation for doctest is greatly expanded, and now covers all |
| 1022 | the new public features (of which there are many). |
| 1023 | |
Walter Dörwald | 5011d0c | 2004-09-13 08:53:15 +0000 | [diff] [blame] | 1024 | - ``doctest.master`` was put back in, and ``doctest.testmod()`` once again |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1025 | updates it. This isn't good, because every ``testmod()`` call |
| 1026 | contributes to bloating the "hidden" state of ``doctest.master``, but |
| 1027 | some old code apparently relies on it. For now, all we can do is |
| 1028 | encourage people to stitch doctests together via doctest's unittest |
Tim Peters | a80a2c8 | 2004-09-26 05:13:18 +0000 | [diff] [blame] | 1029 | integration features instead. |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1030 | |
Skip Montanaro | 82d0eec | 2004-09-14 17:58:31 +0000 | [diff] [blame] | 1031 | - httplib now handles ipv6 address/port pairs. |
| 1032 | |
David Goodger | 68a1abd | 2004-10-03 15:40:25 +0000 | [diff] [blame] | 1033 | - SF bug #1017864: ConfigParser now correctly handles default keys, |
| 1034 | processing them with ``ConfigParser.optionxform`` when supplied, |
| 1035 | consistent with the handling of config file entries and runtime-set |
| 1036 | options. |
| 1037 | |
David Goodger | 1cbf206 | 2004-10-03 15:55:09 +0000 | [diff] [blame] | 1038 | - SF bug #997050: Document, test, & check for non-string values in |
| 1039 | ConfigParser. Moved the new string-only restriction added in |
| 1040 | rev. 1.65 to the SafeConfigParser class, leaving existing |
| 1041 | ConfigParser & RawConfigParser behavior alone, and documented the |
| 1042 | conditions under which non-string values work. |
| 1043 | |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1044 | Build |
| 1045 | ----- |
| 1046 | |
Brett Cannon | bfef869 | 2004-09-28 04:08:11 +0000 | [diff] [blame] | 1047 | - Building on darwin now includes /opt/local/include and /opt/local/lib for |
| 1048 | building extension modules. This is so as to include software installed as |
| 1049 | a DarwinPorts port <http://darwinports.opendarwin.org/> |
| 1050 | |
Tim Peters | 862f059 | 2004-09-23 19:11:32 +0000 | [diff] [blame] | 1051 | - pyport.h now defines a Py_IS_NAN macro. It works as-is when the |
| 1052 | platform C computes true for ``x != x`` if and only if X is a NaN. |
| 1053 | Other platforms can override the default definition with a platform- |
| 1054 | specific spelling in that platform's pyconfig.h. You can also override |
| 1055 | pyport.h's default Py_IS_INFINITY definition now. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1056 | |
| 1057 | C API |
| 1058 | ----- |
| 1059 | |
Tim Peters | 7f468f2 | 2004-10-11 02:40:51 +0000 | [diff] [blame] | 1060 | - SF patch 1044089: New function ``PyEval_ThreadsInitialized()`` returns |
| 1061 | non-zero if PyEval_InitThreads() has been called. |
| 1062 | |
| 1063 | - The undocumented and unused extern int ``_PyThread_Started`` was removed. |
| 1064 | |
Tim Peters | 8470558 | 2004-10-10 02:47:33 +0000 | [diff] [blame] | 1065 | - The C API calls ``PyInterpreterState_New()`` and ``PyThreadState_New()`` |
| 1066 | are two of the very few advertised as being safe to call without holding |
| 1067 | the GIL. However, this wasn't true in a debug build, as bug 1041645 |
| 1068 | demonstrated. In a debug build, Python redirects the ``PyMem`` family |
| 1069 | of calls to Python's small-object allocator, to get the benefit of |
| 1070 | its extra debugging capabilities. But Python's small-object allocator |
| 1071 | isn't threadsafe, relying on the GIL to avoid the expense of doing its |
| 1072 | own locking. ``PyInterpreterState_New()`` and ``PyThreadState_New()`` |
| 1073 | call the platform ``malloc()`` directly now, regardless of build type. |
| 1074 | |
Tim Peters | 307fa78 | 2004-09-23 08:06:40 +0000 | [diff] [blame] | 1075 | - PyLong_AsUnsignedLong[Mask] now support int objects as well. |
| 1076 | |
Walter Dörwald | 6965203 | 2004-09-07 20:24:22 +0000 | [diff] [blame] | 1077 | - SF patch #998993: ``PyUnicode_DecodeUTF8Stateful`` and |
| 1078 | ``PyUnicode_DecodeUTF16Stateful`` have been added, which implement stateful |
| 1079 | decoding. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1080 | |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1081 | Tests |
| 1082 | ----- |
| 1083 | |
| 1084 | - test__locale ported to unittest |
| 1085 | |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1086 | Mac |
| 1087 | --- |
| 1088 | |
Just van Rossum | dd3c837 | 2004-10-03 16:27:09 +0000 | [diff] [blame] | 1089 | - ``plistlib`` now supports non-dict root objects. There is also a new |
| 1090 | interface for reading and writing plist files: ``readPlist(pathOrFile)`` |
| 1091 | and ``writePlist(rootObject, pathOrFile)`` |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1092 | |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1093 | Tools/Demos |
| 1094 | ----------- |
| 1095 | |
Tim Peters | 130e37f | 2004-10-03 19:03:19 +0000 | [diff] [blame] | 1096 | - The text file comparison scripts ``ndiff.py`` and ``diff.py`` now |
| 1097 | read the input files in universal-newline mode. This spares them |
| 1098 | from consuming a great deal of time to deduce the useless result that, |
| 1099 | e.g., a file with Windows line ends and a file with Linux line ends |
| 1100 | have no lines in common. |
Brett Cannon | 2ad68e6 | 2004-09-06 23:30:27 +0000 | [diff] [blame] | 1101 | |
| 1102 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1103 | What's New in Python 2.4 alpha 3? |
| 1104 | ================================= |
| 1105 | |
Anthony Baxter | e13943a | 2004-09-02 16:37:15 +0000 | [diff] [blame] | 1106 | *Release date: 02-SEP-2004* |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1107 | |
| 1108 | Core and builtins |
| 1109 | ----------------- |
| 1110 | |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1111 | - SF patch #1007189: ``from ... import ...`` statements now allow the name |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 1112 | list to be surrounded by parentheses. |
| 1113 | |
Tim Peters | 0973b99 | 2004-08-29 22:16:50 +0000 | [diff] [blame] | 1114 | - Some speedups for long arithmetic, thanks to Trevor Perrin. Gradeschool |
| 1115 | multiplication was sped a little by optimizing the C code. Gradeschool |
| 1116 | squaring was sped by about a factor of 2, by exploiting that about half |
| 1117 | the digit products are duplicates in a square. Because exponentiation |
| 1118 | uses squaring often, this also speeds long power. For example, the time |
| 1119 | to compute 17**1000000 dropped from about 14 seconds to 9 on my box due |
| 1120 | to this much. The cutoff for Karatsuba multiplication was raised, |
| 1121 | since gradeschool multiplication got quicker, and the cutoff was |
Tim Peters | 47e52ee | 2004-08-30 02:44:38 +0000 | [diff] [blame] | 1122 | aggressively small regardless. The exponentiation algorithm was switched |
| 1123 | from right-to-left to left-to-right, which is more efficient for small |
| 1124 | bases. In addition, if the exponent is large, the algorithm now does |
| 1125 | 5 bits (instead of 1 bit) at a time. That cut the time to compute |
| 1126 | 17**1000000 on my box in half again, down to about 4.5 seconds. |
Tim Peters | 0973b99 | 2004-08-29 22:16:50 +0000 | [diff] [blame] | 1127 | |
Tim Peters | c885443 | 2004-08-25 02:14:08 +0000 | [diff] [blame] | 1128 | - OverflowWarning is no longer generated. PEP 237 scheduled this to |
| 1129 | occur in Python 2.3, but since OverflowWarning was disabled by default, |
| 1130 | nobody realized it was still being generated. On the chance that user |
| 1131 | code is still using them, the Python builtin OverflowWarning, and |
| 1132 | corresponding C API PyExc_OverflowWarning, will exist until Python 2.5. |
| 1133 | |
Martin v. Löwis | 336e85f | 2004-08-19 11:31:58 +0000 | [diff] [blame] | 1134 | - Py_InitializeEx has been added. |
| 1135 | |
Brett Cannon | add3360 | 2004-08-15 07:21:25 +0000 | [diff] [blame] | 1136 | - Fix the order of application of decorators. The proper order is bottom-up; |
| 1137 | the first decorator listed is the last one called. |
| 1138 | |
Neal Norwitz | f076953 | 2004-08-13 03:18:29 +0000 | [diff] [blame] | 1139 | - SF patch #1005778. Fix a seg fault if the list size changed while |
| 1140 | calling list.index(). This could happen if a rich comparison function |
| 1141 | modified the list. |
| 1142 | |
Michael W. Hudson | 5e89795 | 2004-08-12 18:12:44 +0000 | [diff] [blame] | 1143 | - The ``func_name`` (a.k.a. ``__name__``) attribute of user-defined |
| 1144 | functions is now writable. |
| 1145 | |
Michael W. Hudson | 5523c25 | 2004-08-12 18:09:00 +0000 | [diff] [blame] | 1146 | - code_new (a.k.a new.code()) now checks its arguments sufficiently |
| 1147 | carefully that passing them on to PyCode_New() won't trigger calls |
| 1148 | to Py_FatalError() or PyErr_BadInternalCall(). It is still the case |
| 1149 | that the returned code object might be entirely insane. |
| 1150 | |
Tim Peters | 3ddd60a | 2004-08-08 02:43:33 +0000 | [diff] [blame] | 1151 | - Subclasses of string can no longer be interned. The semantics of |
| 1152 | interning were not clear here -- a subclass could be mutable, for |
| 1153 | example -- and had bugs. Explicitly interning a subclass of string |
| 1154 | via intern() will raise a TypeError. Internal operations that attempt |
| 1155 | to intern a string subclass will have no effect. |
Jeremy Hylton | 4c989dd | 2004-08-07 19:20:05 +0000 | [diff] [blame] | 1156 | |
Tim Peters | 83b5735 | 2004-08-08 07:24:22 +0000 | [diff] [blame] | 1157 | - Bug 1003935: xrange() could report bogus OverflowErrors. Documented |
| 1158 | what xrange() intends, and repaired tests accordingly. |
| 1159 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1160 | Extension modules |
| 1161 | ----------------- |
| 1162 | |
Martin v. Löwis | e064b41 | 2004-08-29 16:34:40 +0000 | [diff] [blame] | 1163 | - difflib now supports HTML side-by-side diff. |
| 1164 | |
Martin v. Löwis | dc3883f | 2004-08-29 15:46:35 +0000 | [diff] [blame] | 1165 | - os.urandom has been added for systems that support sources of random |
| 1166 | data. |
| 1167 | |
Tim Peters | 037b3ee | 2004-08-21 06:55:43 +0000 | [diff] [blame] | 1168 | - Patch 1012740: truncate() on a writeable cStringIO now resets the |
| 1169 | position to the end of the stream. This is consistent with the original |
| 1170 | StringIO module and avoids inadvertently resurrecting data that was |
| 1171 | supposed to have been truncated away. |
| 1172 | |
Dave Cole | 331708b | 2004-08-09 04:51:41 +0000 | [diff] [blame] | 1173 | - Added socket.socketpair(). |
| 1174 | |
Dave Cole | 3203efb | 2004-08-26 00:37:31 +0000 | [diff] [blame] | 1175 | - Added CurrentByteIndex, CurrentColumnNumber, CurrentLineNumber |
| 1176 | members to xml.parsers.expat.XMLParser object. |
| 1177 | |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1178 | - The mpz, rotor, and xreadlines modules, all deprecated in earlier |
Andrew M. Kuchling | 0087343 | 2004-08-31 13:50:43 +0000 | [diff] [blame] | 1179 | versions of Python, have now been removed. |
| 1180 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1181 | Library |
| 1182 | ------- |
| 1183 | |
Johannes Gijsbers | 4c11f60 | 2004-08-30 14:13:04 +0000 | [diff] [blame] | 1184 | - Patch #934356: if a module defines __all__, believe that rather than using |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1185 | heuristics for filtering out imported names. |
Johannes Gijsbers | 4c11f60 | 2004-08-30 14:13:04 +0000 | [diff] [blame] | 1186 | |
Johannes Gijsbers | ae882f7 | 2004-08-30 10:19:56 +0000 | [diff] [blame] | 1187 | - Patch #941486: added os.path.lexists(), which returns True for broken |
| 1188 | symlinks, unlike os.path.exists(). |
| 1189 | |
Raymond Hettinger | 356a459 | 2004-08-30 06:14:31 +0000 | [diff] [blame] | 1190 | - the random module now uses os.urandom() for seeding if it is available. |
| 1191 | Added a new generator based on os.urandom(). |
| 1192 | |
Martin v. Löwis | e064b41 | 2004-08-29 16:34:40 +0000 | [diff] [blame] | 1193 | - difflib and diff.py can now generate HTML. |
| 1194 | |
Martin v. Löwis | cae9e67 | 2004-08-25 13:04:53 +0000 | [diff] [blame] | 1195 | - bdist_rpm now includes version and release in the BuildRoot, and |
| 1196 | replaces - by ``_`` in version and release. |
Martin v. Löwis | cf52524 | 2004-08-25 13:00:34 +0000 | [diff] [blame] | 1197 | |
Martin v. Löwis | 9f5c0c4 | 2004-08-25 11:37:43 +0000 | [diff] [blame] | 1198 | - distutils build/build_scripts now has an -e option to specify the |
| 1199 | path to the Python interpreter for installed scripts. |
| 1200 | |
Barry Warsaw | 8bee761 | 2004-08-25 02:22:30 +0000 | [diff] [blame] | 1201 | - PEP 292 classes Template and SafeTemplate are added to the string module. |
| 1202 | |
Martin v. Löwis | 75b9da4 | 2004-08-18 13:57:44 +0000 | [diff] [blame] | 1203 | - tarfile now generates GNU tar files by default. |
| 1204 | |
Martin v. Löwis | deacce2 | 2004-08-18 12:46:26 +0000 | [diff] [blame] | 1205 | - HTTPResponse has now a getheaders method. |
| 1206 | |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 1207 | - Patch #1006219: let inspect.getsource handle '@' decorators. Thanks Simon |
| 1208 | Percivall. |
| 1209 | |
Martin v. Löwis | 318a12e | 2004-08-18 12:27:40 +0000 | [diff] [blame] | 1210 | - logging.handlers.SMTPHandler.date_time has been removed; |
| 1211 | the class now uses email.Utils.formatdate to generate the time stamp. |
| 1212 | |
Martin v. Löwis | fe84d17 | 2004-08-18 11:06:45 +0000 | [diff] [blame] | 1213 | - A new function tkFont.nametofont was added to return an existing |
| 1214 | font. The Font class constructor now has an additional exists argument |
| 1215 | which, if True, requests to return/configure an existing font, rather |
Tim Peters | 037b3ee | 2004-08-21 06:55:43 +0000 | [diff] [blame] | 1216 | than creating a new one. |
Martin v. Löwis | fe84d17 | 2004-08-18 11:06:45 +0000 | [diff] [blame] | 1217 | |
Raymond Hettinger | 9bb1f05 | 2004-08-18 02:51:32 +0000 | [diff] [blame] | 1218 | - Updated the decimal package's min() and max() methods to match the |
| 1219 | latest revision of the General Decimal Arithmetic Specification. |
| 1220 | Quiet NaNs are ignored and equal values are sorted based on sign |
| 1221 | and exponent. |
| 1222 | |
| 1223 | - The decimal package's Context.copy() method now returns deep copies. |
| 1224 | |
| 1225 | - Deprecated sys.exitfunc in favor of the atexit module. The sys.exitfunc |
Georg Brandl | 08c02db | 2005-07-22 18:39:19 +0000 | [diff] [blame] | 1226 | attribute will be kept around for backwards compatibility and atexit |
Raymond Hettinger | 9bb1f05 | 2004-08-18 02:51:32 +0000 | [diff] [blame] | 1227 | will just become the one preferred way to do it. |
| 1228 | |
Skip Montanaro | e506901 | 2004-08-15 14:32:06 +0000 | [diff] [blame] | 1229 | - patch #675551: Add get_history_item and replace_history_item functions |
| 1230 | to the readline module. |
| 1231 | |
Johannes Gijsbers | 34c4120 | 2004-08-14 15:19:28 +0000 | [diff] [blame] | 1232 | - bug #989672: pdb.doc and the help messages for the help_d and help_u methods |
Skip Montanaro | e506901 | 2004-08-15 14:32:06 +0000 | [diff] [blame] | 1233 | of the pdb.Pdb class gives have been corrected. d(own) goes to a newer |
| 1234 | frame, u(p) to an older frame, not the other way around. |
Johannes Gijsbers | 34c4120 | 2004-08-14 15:19:28 +0000 | [diff] [blame] | 1235 | |
Johannes Gijsbers | 4ec4064 | 2004-08-14 15:01:53 +0000 | [diff] [blame] | 1236 | - bug #990669: os.path.realpath() will resolve symlinks before normalizing the |
| 1237 | path, as normalizing the path may alter the meaning of the path if it |
| 1238 | contains symlinks. |
| 1239 | |
Johannes Gijsbers | 9d134b7 | 2004-08-14 14:03:03 +0000 | [diff] [blame] | 1240 | - bug #851123: shutil.copyfile will raise an exception when trying to copy a |
| 1241 | file onto a link to itself. Thanks Gregory Ball. |
| 1242 | |
Brett Cannon | b3de2e1 | 2004-08-13 18:46:24 +0000 | [diff] [blame] | 1243 | - bug #570300: Fix inspect to resolve file locations using os.path.realpath() |
| 1244 | so as to properly list all functions in a module when the module itself is |
| 1245 | reached through a symlink. Thanks Johannes Gijsbers. |
| 1246 | |
Tim Peters | 3ddd60a | 2004-08-08 02:43:33 +0000 | [diff] [blame] | 1247 | - doctest refactoring continued. See the docs for details. As part of |
| 1248 | this effort, some old and little- (never?) used features are now |
| 1249 | deprecated: the Tester class, the module is_private() function, and the |
| 1250 | isprivate argument to testmod(). The Tester class supplied a feeble |
| 1251 | "by hand" way to combine multiple doctests, if you knew exactly what |
| 1252 | you were doing. The newer doctest features for unittest integration |
| 1253 | already did a better job of that, are stronger now than ever, and the |
| 1254 | new DocTestRunner class is a saner foundation if you want to do it by |
| 1255 | hand. The "private name" filtering gimmick was a mistake from the |
| 1256 | start, and testmod() changed long ago to ignore it by default. If |
| 1257 | you want to filter out tests, the new DocTestFinder class can be used |
| 1258 | to return a list of all doctests, and you can filter that list by |
| 1259 | any computable criteria before passing it to a DocTestRunner instance. |
| 1260 | |
Matthias Klose | 2e829c0 | 2004-08-15 17:04:33 +0000 | [diff] [blame] | 1261 | - Bug #891637, patch #1005466: fix inspect.getargs() crash on def foo((bar)). |
| 1262 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1263 | Tools/Demos |
| 1264 | ----------- |
| 1265 | |
Raymond Hettinger | 9bb1f05 | 2004-08-18 02:51:32 +0000 | [diff] [blame] | 1266 | - IDLE's shortcut keys for windows are now case insensitive so that |
| 1267 | Control-V works the same as Control-v. |
| 1268 | |
Matthias Klose | 2443d4a | 2004-08-16 12:10:12 +0000 | [diff] [blame] | 1269 | - pygettext.py: Generate POT-Creation-Date header in ISO format. |
| 1270 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1271 | Build |
| 1272 | ----- |
| 1273 | |
Tim Peters | 47e52ee | 2004-08-30 02:44:38 +0000 | [diff] [blame] | 1274 | - Backward incompatibility: longintrepr.h now triggers a compile-time |
| 1275 | error if SHIFT (the number of bits in a Python long "digit") isn't |
| 1276 | divisible by 5. This new requirement allows simple code for the new |
| 1277 | 5-bits-at-a-time long_pow() implementation. If necessary, the |
| 1278 | restriction could be removed (by complicating long_pow(), or by |
| 1279 | falling back to the 1-bit-at-a-time algorithm), but there are no |
| 1280 | plans to do so. |
| 1281 | |
Brett Cannon | cc8a4f6 | 2004-08-26 01:44:07 +0000 | [diff] [blame] | 1282 | - bug #991962: When building with --disable-toolbox-glue on Darwin no |
| 1283 | attempt to build Mac-specific modules occurs. |
| 1284 | |
Michael W. Hudson | 800ba23 | 2004-08-12 18:19:17 +0000 | [diff] [blame] | 1285 | - The --with-tsc flag to configure to enable VM profiling with the |
| 1286 | processor's timestamp counter now works on PPC platforms. |
| 1287 | |
Skip Montanaro | e506901 | 2004-08-15 14:32:06 +0000 | [diff] [blame] | 1288 | - patch #1006629: Define _XOPEN_SOURCE to 500 on Solaris 8/9 to match |
| 1289 | GCC's definition and avoid redefinition warnings. |
| 1290 | |
Matthias Klose | a2542be | 2004-08-16 11:35:51 +0000 | [diff] [blame] | 1291 | - Detect pthreads support (provided by gnu pth pthread emulation) on |
| 1292 | GNU/k*BSD systems. |
| 1293 | |
Hye-Shik Chang | 3ba5bfc | 2004-08-19 17:52:37 +0000 | [diff] [blame] | 1294 | - bug #1005737, #1007249: Fixed several build problems and warnings |
| 1295 | found on old/legacy C compilers of HP-UX, IRIX and Tru64. |
| 1296 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1297 | C API |
| 1298 | ----- |
| 1299 | |
Johannes Gijsbers | 343cb8a | 2004-08-30 14:27:11 +0000 | [diff] [blame] | 1300 | .. |
| 1301 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1302 | Documentation |
| 1303 | ------------- |
| 1304 | |
Neal Norwitz | 5268c39 | 2004-08-21 15:13:52 +0000 | [diff] [blame] | 1305 | - patch #1005936, bug #1009373: fix index entries which contain |
| 1306 | an underscore when viewed with Acrobat. |
| 1307 | |
| 1308 | - bug #990669: os.path.normpath may alter the meaning of a path if |
| 1309 | it contains symbolic links. This has been documented in a comment |
| 1310 | since 1992, but is now in the library reference as well. |
Johannes Gijsbers | b112d6e | 2004-08-14 14:41:32 +0000 | [diff] [blame] | 1311 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1312 | New platforms |
| 1313 | ------------- |
| 1314 | |
Hye-Shik Chang | f64700a | 2004-08-18 15:13:41 +0000 | [diff] [blame] | 1315 | - FreeBSD 6 is now supported. |
| 1316 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1317 | Tests |
| 1318 | ----- |
| 1319 | |
Johannes Gijsbers | 343cb8a | 2004-08-30 14:27:11 +0000 | [diff] [blame] | 1320 | .. |
| 1321 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1322 | Windows |
| 1323 | ------- |
| 1324 | |
Tim Peters | 79b52b7 | 2004-08-12 18:37:10 +0000 | [diff] [blame] | 1325 | - Boosted the stack reservation for python.exe and pythonw.exe from |
| 1326 | the default 1MB to 2MB. Stack frames under VC 7.1 for 2.4 are enough |
| 1327 | bigger than under VC 6.0 for 2.3.4 that deeply recursive progams |
| 1328 | within the default sys.getrecursionlimit() default value of 1000 were |
| 1329 | able to suffer undetected C stack overflows. The standard test program |
| 1330 | test_compiler was one such program. If a Python process on Windows |
| 1331 | "just vanishes" without a trace, and without an error message of any |
| 1332 | kind, but with an exit code of 128, undetected stack overflow may be |
| 1333 | the problem. |
| 1334 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1335 | Mac |
| 1336 | --- |
| 1337 | |
Johannes Gijsbers | 343cb8a | 2004-08-30 14:27:11 +0000 | [diff] [blame] | 1338 | .. |
| 1339 | |
Andrew M. Kuchling | b34a6bc | 2004-08-07 14:03:33 +0000 | [diff] [blame] | 1340 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1341 | What's New in Python 2.4 alpha 2? |
| 1342 | ================================= |
| 1343 | |
Anthony Baxter | ff347ca | 2004-08-05 07:21:01 +0000 | [diff] [blame] | 1344 | *Release date: 05-AUG-2004* |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1345 | |
| 1346 | Core and builtins |
| 1347 | ----------------- |
| 1348 | |
Raymond Hettinger | 52a21b8 | 2004-08-06 18:43:09 +0000 | [diff] [blame] | 1349 | - Patch #980695: Implements efficient string concatenation for statements |
| 1350 | of the form s=s+t and s+=t. This will vary across implementations. |
| 1351 | Accordingly, the str.join() method is strongly preferred for performance |
| 1352 | sensitive code. |
| 1353 | |
Anthony Baxter | 32083f6 | 2004-08-02 06:24:59 +0000 | [diff] [blame] | 1354 | - PEP-0318, Function Decorators have been added to the language. These are |
Johannes Gijsbers | 343cb8a | 2004-08-30 14:27:11 +0000 | [diff] [blame] | 1355 | implemented using the Java-style @decorator syntax, like so:: |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1356 | |
Anthony Baxter | 32083f6 | 2004-08-02 06:24:59 +0000 | [diff] [blame] | 1357 | @staticmethod |
| 1358 | def foo(bar): |
Tim Peters | 82076ef | 2004-09-13 00:52:51 +0000 | [diff] [blame] | 1359 | |
Anthony Baxter | ff347ca | 2004-08-05 07:21:01 +0000 | [diff] [blame] | 1360 | (The PEP needs to be updated to reflect the current state) |
Anthony Baxter | 32083f6 | 2004-08-02 06:24:59 +0000 | [diff] [blame] | 1361 | |
Tim Peters | 94f9b86 | 2004-08-02 03:48:03 +0000 | [diff] [blame] | 1362 | - When importing a module M raises an exception, Python no longer leaves M |
| 1363 | in sys.modules. Before 2.4a2 it did, and a subsequent import of M would |
| 1364 | succeed, picking up a module object from sys.modules reflecting as much |
| 1365 | of the initialization of M as completed before the exception was raised. |
| 1366 | Subsequent imports got no indication that M was in a partially- |
| 1367 | initialized state, and the importers could get into arbitrarily bad |
| 1368 | trouble as a result (the M they got was in an unintended state, |
| 1369 | arbitrarily far removed from M's author's intent). Now subsequent |
| 1370 | imports of M will continue raising exceptions (but if, for example, the |
| 1371 | source code for M is edited between import attempts, then perhaps later |
| 1372 | attempts will succeed, or raise a different exception). |
| 1373 | |
| 1374 | This can break existing code, but in such cases the code was probably |
| 1375 | working before by accident. In the Python source, the only case of |
| 1376 | breakage discovered was in a test accidentally relying on a damaged |
| 1377 | module remaining in sys.modules. Cases are also known where tests |
| 1378 | deliberately provoking import errors remove damaged modules from |
| 1379 | sys.modules themselves, and such tests will break now if they do an |
| 1380 | unconditional del sys.modules[M]. |
| 1381 | |
Marc-André Lemburg | b314ce9 | 2004-07-23 16:14:57 +0000 | [diff] [blame] | 1382 | - u'%s' % obj will now try obj.__unicode__() first and fallback to |
| 1383 | obj.__str__() if no __unicode__ method can be found. |
| 1384 | |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1385 | - Patch #550732: Add PyArg_VaParseTupleAndKeywords(). Analogous to |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1386 | PyArg_VaParse(). Both are now documented. Thanks Greg Chapman. |
Brett Cannon | 711e7d9 | 2004-07-10 22:20:32 +0000 | [diff] [blame] | 1387 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1388 | - Allow string and unicode return types from .encode()/.decode() |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1389 | methods on string and unicode objects. Added unicode.decode() |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1390 | which was missing for no apparent reason. |
| 1391 | |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1392 | - An attempt to fix the mess that is Python's behaviour with |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1393 | signal handlers and threads, complicated by readline's behaviour. |
| 1394 | It's quite possible that there are still bugs here. |
| 1395 | |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1396 | - Added C macros Py_CLEAR and Py_VISIT to ease the implementation of |
| 1397 | types that support garbage collection. |
| 1398 | |
Raymond Hettinger | 76d962d | 2004-07-16 12:16:48 +0000 | [diff] [blame] | 1399 | - Compiler now treats None as a constant. |
| 1400 | |
Neil Schemenauer | 3a313e3 | 2004-07-19 16:29:17 +0000 | [diff] [blame] | 1401 | - The type of values returned by __int__, __float__, __long__, |
| 1402 | __oct__, and __hex__ are now checked. Returning an invalid type |
| 1403 | will cause a TypeError to be raised. This matches the behavior of |
| 1404 | Jython. |
| 1405 | |
Gustavo Niemeyer | 7bd33c5 | 2004-07-22 18:44:01 +0000 | [diff] [blame] | 1406 | - Implemented bind_textdomain_codeset() in locale module. |
| 1407 | |
Hye-Shik Chang | b5047fd | 2004-08-04 06:33:51 +0000 | [diff] [blame] | 1408 | - Added a workaround for proper string operations in BSDs. str.split |
| 1409 | and str.is* methods can now work correctly with UTF-8 locales. |
| 1410 | |
Hye-Shik Chang | c81c695 | 2004-08-04 17:40:38 +0000 | [diff] [blame] | 1411 | - Bug #989185: unicode.iswide() and unicode.width() is dropped and |
| 1412 | the East Asian Width support is moved to unicodedata extension |
| 1413 | module. |
Hye-Shik Chang | e9ddfbb | 2004-08-04 07:38:35 +0000 | [diff] [blame] | 1414 | |
Hye-Shik Chang | 7df44b3 | 2004-08-04 17:36:41 +0000 | [diff] [blame] | 1415 | - Patch #941229: The source code encoding in interactive mode |
| 1416 | now refers sys.stdin.encoding not just ISO-8859-1 anymore. This |
| 1417 | allows for non-latin-1 users to write unicode strings directly. |
| 1418 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1419 | Extension modules |
| 1420 | ----------------- |
| 1421 | |
Martin v. Löwis | 544f119 | 2004-07-27 05:22:33 +0000 | [diff] [blame] | 1422 | - cpickle now supports the same keyword arguments as pickle. |
| 1423 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1424 | Library |
| 1425 | ------- |
| 1426 | |
Marc-André Lemburg | c759f07 | 2004-08-05 12:43:30 +0000 | [diff] [blame] | 1427 | - Added new codecs and aliases for ISO_8859-11, ISO_8859-16 and |
| 1428 | TIS-620 |
| 1429 | |
Tim Peters | 8485b56 | 2004-08-04 18:46:34 +0000 | [diff] [blame] | 1430 | - Thanks to Edward Loper, doctest has been massively refactored, and |
| 1431 | many new features were added. Full docs will appear later. For now |
| 1432 | the doctest module comments and new test cases give good coverage. |
| 1433 | The refactoring provides many hook points for customizing behavior |
| 1434 | (such as how to report errors, and how to compare expected to actual |
| 1435 | output). New features include a <BLANKLINE> marker for expected |
| 1436 | output containing blank lines, options to produce unified or context |
| 1437 | diffs when actual output doesn't match expectations, an option to |
| 1438 | normalize whitespace before comparing, and an option to use an |
| 1439 | ellipsis to signify "don't care" regions of output. |
| 1440 | |
Martin v. Löwis | 1fa649f | 2004-08-03 18:45:31 +0000 | [diff] [blame] | 1441 | - Tkinter now supports the wish -sync and -use options. |
| 1442 | |
Fred Drake | f901abd | 2004-08-03 17:58:55 +0000 | [diff] [blame] | 1443 | - The following methods in time support passing of None: ctime(), gmtime(), |
| 1444 | and localtime(). If None is provided, the current time is used (the |
| 1445 | same as when the argument is omitted). |
| 1446 | [SF bug 658254, patch 663482] |
| 1447 | |
Martin v. Löwis | 9513e34 | 2004-08-03 14:36:32 +0000 | [diff] [blame] | 1448 | - nntplib does now allow to ignore a .netrc file. |
| 1449 | |
Martin v. Löwis | 65a7975 | 2004-08-03 12:59:55 +0000 | [diff] [blame] | 1450 | - urllib2 now recognizes Basic authentication even if other authentication |
| 1451 | schemes are offered. |
| 1452 | |
Neal Norwitz | 0e67fd4 | 2004-08-01 22:48:06 +0000 | [diff] [blame] | 1453 | - Bug #1001053. wave.open() now accepts unicode filenames. |
| 1454 | |
Tim Peters | 5cfb05e | 2004-07-27 21:02:02 +0000 | [diff] [blame] | 1455 | - gzip.GzipFile has a new fileno() method, to retrieve the handle of the |
| 1456 | underlying file object (provided it has a fileno() method). This is |
| 1457 | needed if you want to use os.fsync() on a GzipFile. |
| 1458 | |
Martin v. Löwis | 7b9190b | 2004-07-27 05:07:19 +0000 | [diff] [blame] | 1459 | - imaplib has two new methods: deleteacl and myrights. |
| 1460 | |
Martin v. Löwis | cc0f932 | 2004-07-26 12:40:50 +0000 | [diff] [blame] | 1461 | - nntplib has two new methods: description and descriptions. They |
| 1462 | use a more RFC-compliant way of getting a newsgroup description. |
| 1463 | |
Brett Cannon | 8b3d92a | 2004-07-21 02:21:58 +0000 | [diff] [blame] | 1464 | - Bug #993394. Fix a possible red herring of KeyError in 'threading' being |
| 1465 | raised during interpreter shutdown from a registered function with atexit |
| 1466 | when dummy_threading is being used. |
| 1467 | |
Neal Norwitz | a4f651a | 2004-07-20 22:07:44 +0000 | [diff] [blame] | 1468 | - Bug #857297/Patch #916874. Fix an error when extracting a hard link |
| 1469 | from a tarfile. |
| 1470 | |
Neal Norwitz | 0662f8a | 2004-07-20 21:54:18 +0000 | [diff] [blame] | 1471 | - Patch #846659. Fix an error in tarfile.py when using |
Tim Peters | aa1c7ff | 2004-07-22 00:54:37 +0000 | [diff] [blame] | 1472 | GNU longname/longlink creation. |
Neal Norwitz | 0662f8a | 2004-07-20 21:54:18 +0000 | [diff] [blame] | 1473 | |
Tim Peters | 90ee7eb | 2004-07-18 23:58:17 +0000 | [diff] [blame] | 1474 | - The obsolete FCNTL.py has been deleted. The builtin fcntl module |
| 1475 | has been available (on platforms that support fcntl) since Python |
| 1476 | 1.5a3, and all FCNTL.py did is export fcntl's names, after generating |
| 1477 | a deprecation warning telling you to use fcntl directly. |
| 1478 | |
Hye-Shik Chang | 2bb146f | 2004-07-18 03:06:29 +0000 | [diff] [blame] | 1479 | - Several new unicode codecs are added: big5hkscs, euc_jis_2004, |
| 1480 | iso2022_jp_2004, shift_jis_2004. |
| 1481 | |
Tim Peters | 5af0e41 | 2004-07-12 00:45:14 +0000 | [diff] [blame] | 1482 | - Bug #788520. Queue.{get, get_nowait, put, put_nowait} have new |
| 1483 | implementations, exploiting Conditions (which didn't exist at the time |
| 1484 | Queue was introduced). A minor semantic change is that the Full and |
| 1485 | Empty exceptions raised by non-blocking calls now occur only if the |
| 1486 | queue truly was full or empty at the instant the queue was checked (of |
| 1487 | course the Queue may no longer be full or empty by the time a calling |
| 1488 | thread sees those exceptions, though). Before, the exceptions could |
| 1489 | also be raised if it was "merely inconvenient" for the implementation |
| 1490 | to determine the true state of the Queue (because the Queue was locked |
| 1491 | by some other method in progress). |
| 1492 | |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1493 | - Bugs #979794 and #980117: difflib.get_grouped_opcodes() now handles the |
| 1494 | case of comparing two empty lists. This affected both context_diff() and |
| 1495 | unified_diff(), |
Brett Cannon | d2c5b4b | 2004-07-10 23:54:07 +0000 | [diff] [blame] | 1496 | |
Brett Cannon | e6f8a89 | 2004-07-10 23:14:30 +0000 | [diff] [blame] | 1497 | - Bug #980938: smtplib now prints debug output to sys.stderr. |
| 1498 | |
Brett Cannon | f50299c | 2004-07-10 22:55:15 +0000 | [diff] [blame] | 1499 | - Bug #930024: posixpath.realpath() now handles infinite loops in symlinks by |
| 1500 | returning the last point in the path that was not part of any loop. Thanks |
| 1501 | AM Kuchling. |
| 1502 | |
Brett Cannon | bdc3627 | 2004-07-10 20:42:22 +0000 | [diff] [blame] | 1503 | - Bug #980327: ntpath not handles compressing erroneous slashes between the |
| 1504 | drive letter and the rest of the path. Also clearly handles UNC addresses now |
| 1505 | as well. Thanks Paul Moore. |
| 1506 | |
Brett Cannon | e675118 | 2004-07-10 19:13:42 +0000 | [diff] [blame] | 1507 | - bug #679953: zipfile.py should now work for files over 2 GB. The packed data |
| 1508 | for file sizes (compressed and uncompressed) was being stored as signed |
| 1509 | instead of unsigned. |
| 1510 | |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1511 | - decimal.py now only uses signals in the IBM spec. The other conditions are |
Raymond Hettinger | 5aa478b | 2004-07-09 10:02:53 +0000 | [diff] [blame] | 1512 | no longer part of the public API. |
| 1513 | |
Marc-André Lemburg | 88fcca6 | 2004-07-10 16:16:06 +0000 | [diff] [blame] | 1514 | - codecs module now has two new generic APIs: encode() and decode() |
| 1515 | which don't restrict the return types (unlike the unicode and |
| 1516 | string methods of the same name). |
| 1517 | |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1518 | - Non-blocking SSL sockets work again; they were broken in Python 2.3. |
Andrew M. Kuchling | 79d7e92 | 2004-07-10 21:21:55 +0000 | [diff] [blame] | 1519 | SF patch 945642. |
| 1520 | |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1521 | - doctest unittest integration improvements: |
| 1522 | |
| 1523 | o Improved the unitest test output for doctest-based unit tests |
| 1524 | |
| 1525 | o Can now pass setUp and tearDown functions when creating |
| 1526 | DocTestSuites. |
| 1527 | |
| 1528 | - The threading module has a new class, local, for creating objects |
| 1529 | that provide thread-local data. |
| 1530 | |
Neil Schemenauer | 66edb62 | 2004-07-19 15:38:11 +0000 | [diff] [blame] | 1531 | - Bug #990307: when keep_empty_values is True, cgi.parse_qsl() |
| 1532 | no longer returns spurious empty fields. |
| 1533 | |
Gustavo Niemeyer | 7bd33c5 | 2004-07-22 18:44:01 +0000 | [diff] [blame] | 1534 | - Implemented bind_textdomain_codeset() in gettext module. |
| 1535 | |
| 1536 | - Introduced in gettext module the l*gettext() family of functions, |
| 1537 | which return translation strings encoded in the preferred encoding, |
| 1538 | as informed by locale module's getpreferredencoding(). |
| 1539 | |
Greg Ward | 9c8fe1a | 2004-07-31 16:16:11 +0000 | [diff] [blame] | 1540 | - optparse module (and tests) upgraded to Optik 1.5a1. Changes: |
| 1541 | |
| 1542 | - Add expansion of default values in help text: the string |
| 1543 | "%default" in an option's help string is expanded to str() of |
| 1544 | that option's default value, or "none" if no default value. |
Tim Peters | 94f9b86 | 2004-08-02 03:48:03 +0000 | [diff] [blame] | 1545 | |
Greg Ward | 9c8fe1a | 2004-07-31 16:16:11 +0000 | [diff] [blame] | 1546 | - Bug #955889: option default values that happen to be strings are |
| 1547 | now processed in the same way as values from the command line; this |
| 1548 | allows generation of nicer help when using custom types. Can |
| 1549 | be disabled with parser.set_process_default_values(False). |
| 1550 | |
| 1551 | - Bug #960515: don't crash when generating help for callback |
| 1552 | options that specify 'type', but not 'dest' or 'metavar'. |
| 1553 | |
| 1554 | - Feature #815264: change the default help format for short options |
| 1555 | that take an argument from e.g. "-oARG" to "-o ARG"; add |
| 1556 | set_short_opt_delimiter() and set_long_opt_delimiter() methods to |
| 1557 | HelpFormatter to allow (slight) customization of the formatting. |
| 1558 | |
| 1559 | - Patch #736940: internationalize Optik: all built-in user- |
| 1560 | targeted literal strings are passed through gettext.gettext(). (If |
| 1561 | you want translations (.po files), they're not included with Python |
| 1562 | -- you'll find them in the Optik source distribution from |
| 1563 | http://optik.sourceforge.net/ .) |
| 1564 | |
| 1565 | - Bug #878453: respect $COLUMNS environment variable for |
| 1566 | wrapping help output. |
| 1567 | |
| 1568 | - Feature #988122: expand "%prog" in the 'description' passed |
| 1569 | to OptionParser, just like in the 'usage' and 'version' strings. |
| 1570 | (This is *not* done in the 'description' passed to OptionGroup.) |
Neil Schemenauer | 66edb62 | 2004-07-19 15:38:11 +0000 | [diff] [blame] | 1571 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1572 | C API |
| 1573 | ----- |
| 1574 | |
Tim Peters | 94f9b86 | 2004-08-02 03:48:03 +0000 | [diff] [blame] | 1575 | - PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx(): if an |
| 1576 | error occurs while loading the module, these now delete the module's |
| 1577 | entry from sys.modules. All ways of loading modules eventually call |
| 1578 | one of these, so this is an error-case change in semantics for all |
| 1579 | ways of loading modules. In rare cases, a module loader may wish |
| 1580 | to keep a module object in sys.modules despite that the module's |
| 1581 | code cannot be executed. In such cases, the module loader must |
| 1582 | arrange to reinsert the name and module object in sys.modules. |
| 1583 | PyImport_ReloadModule() has been changed to reinsert the original |
| 1584 | module object into sys.modules if the module reload fails, so that |
| 1585 | its visible semantics have not changed. |
| 1586 | |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1587 | - A large pile of datetime field-extraction macros is now documented, |
| 1588 | thanks to Anthony Tuininga (patch #986010). |
| 1589 | |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1590 | Documentation |
| 1591 | ------------- |
| 1592 | |
Tim Peters | 66bb6e6 | 2004-07-24 23:00:24 +0000 | [diff] [blame] | 1593 | - Improved the tutorial on creating types in C. |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1594 | |
| 1595 | - point out the importance of reassigning data members before |
Andrew M. Kuchling | 78d375f | 2004-08-07 14:00:39 +0000 | [diff] [blame] | 1596 | assigning their values |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1597 | |
Andrew M. Kuchling | 28025ec | 2004-08-07 13:59:22 +0000 | [diff] [blame] | 1598 | - correct my misconception about return values from visitprocs. Sigh. |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1599 | |
| 1600 | - mention the labor saving Py_VISIT and Py_CLEAR macros. |
| 1601 | |
Tim Peters | 66bb6e6 | 2004-07-24 23:00:24 +0000 | [diff] [blame] | 1602 | - Major rewrite of the math module docs, to address common confusions. |
Jim Fulton | e827437 | 2004-07-14 19:08:28 +0000 | [diff] [blame] | 1603 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1604 | Tests |
| 1605 | ----- |
| 1606 | |
Tim Peters | aa1c7ff | 2004-07-22 00:54:37 +0000 | [diff] [blame] | 1607 | - The test data files for the decimal test suite are now installed on |
Anthony Baxter | fd4984d | 2004-07-12 09:33:39 +0000 | [diff] [blame] | 1608 | platforms that use the Makefile. |
| 1609 | |
Tim Peters | aa1c7ff | 2004-07-22 00:54:37 +0000 | [diff] [blame] | 1610 | - SF patch 995225: The test file testtar.tar accidentally contained |
| 1611 | CVS keywords (like $Id$), which could cause spurious failures in |
| 1612 | test_tarfile.py depending on how the test file was checked out. |
| 1613 | |
Anthony Baxter | 563e449 | 2004-07-09 07:30:10 +0000 | [diff] [blame] | 1614 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 1615 | What's New in Python 2.4 alpha 1? |
| 1616 | ================================= |
| 1617 | |
Anthony Baxter | 3210b36 | 2004-07-08 05:59:43 +0000 | [diff] [blame] | 1618 | *Release date: 08-JUL-2004* |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 1619 | |
| 1620 | Core and builtins |
| 1621 | ----------------- |
| 1622 | |
Fred Drake | 0a4dd39 | 2004-07-02 18:57:45 +0000 | [diff] [blame] | 1623 | - weakref.ref is now the type object also known as |
| 1624 | weakref.ReferenceType; it can be subclassed like any other new-style |
| 1625 | class. There's less per-entry overhead in WeakValueDictionary |
| 1626 | objects now (one object instead of three). |
| 1627 | |
Thomas Heller | 04c673b | 2004-07-02 08:56:20 +0000 | [diff] [blame] | 1628 | - Bug #951851: Python crashed when reading import table of certain |
| 1629 | Windows DLLs. |
| 1630 | |
Raymond Hettinger | 66bd233 | 2004-08-02 08:30:07 +0000 | [diff] [blame] | 1631 | - Bug #215126. The locals argument to eval(), execfile(), and exec now |
| 1632 | accept any mapping type. |
Raymond Hettinger | 214b1c3 | 2004-07-02 06:41:07 +0000 | [diff] [blame] | 1633 | |
Martin v. Löwis | ef82d2f | 2004-06-27 16:51:46 +0000 | [diff] [blame] | 1634 | - marshal now shares interned strings. This change introduces |
| 1635 | a new .pyc magic. |
| 1636 | |
Anthony Baxter | 3ecdb25 | 2004-06-11 14:41:18 +0000 | [diff] [blame] | 1637 | - Bug #966623. classes created with type() in an exec(, {}) don't |
| 1638 | have a __module__, but code in typeobject assumed it would always |
| 1639 | be there. |
| 1640 | |
Martin v. Löwis | 737ea82 | 2004-06-08 18:52:54 +0000 | [diff] [blame] | 1641 | - Python no longer relies on the LC_NUMERIC locale setting to be |
| 1642 | the "C" locale; as a result, it no longer tries to prevent changing |
| 1643 | the LC_NUMERIC category. |
| 1644 | |
Tim Peters | 604c013 | 2004-06-07 23:04:33 +0000 | [diff] [blame] | 1645 | - Bug #952807: Unpickling pickled instances of subclasses of |
| 1646 | datetime.date, datetime.datetime and datetime.time could yield insane |
| 1647 | objects. Thanks to Jiwon Seo for a fix. |
| 1648 | |
Thomas Heller | 90a764c | 2004-06-07 15:12:44 +0000 | [diff] [blame] | 1649 | - Bug #845802: Python crashes when __init__.py is a directory. |
| 1650 | |
Hye-Shik Chang | bc555e3 | 2004-06-03 11:10:58 +0000 | [diff] [blame] | 1651 | - Unicode objects received two new methods: iswide() and width(). |
| 1652 | These query East Asian width information, as specified in Unicode |
| 1653 | TR11. |
Hye-Shik Chang | 974ed7c | 2004-06-02 16:49:17 +0000 | [diff] [blame] | 1654 | |
Raymond Hettinger | 41bd022 | 2004-06-01 06:36:24 +0000 | [diff] [blame] | 1655 | - Improved the tuple hashing algorithm to give fewer collisions in |
| 1656 | common cases. Fixes bug #942952. |
| 1657 | |
Raymond Hettinger | 354433a | 2004-05-19 08:20:33 +0000 | [diff] [blame] | 1658 | - Implemented generator expressions (PEP 289). Coded by Jiwon Seo. |
| 1659 | |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 1660 | - Enabled the profiling of C extension functions (and builtins) - check |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 1661 | new documentation and modified profile and bdb modules for more details |
Nicholas Bastin | c69ebe8 | 2004-03-24 21:57:10 +0000 | [diff] [blame] | 1662 | |
Nicholas Bastin | abce8a6 | 2004-03-21 20:24:07 +0000 | [diff] [blame] | 1663 | - Set file.name to the object passed to open (instead of a new string) |
| 1664 | |
Nicholas Bastin | a7604bf | 2004-03-21 18:37:23 +0000 | [diff] [blame] | 1665 | - Moved tracebackobject into traceback.h and renamed to PyTracebackObject |
| 1666 | |
Raymond Hettinger | ff5bc50 | 2004-03-21 15:12:00 +0000 | [diff] [blame] | 1667 | - Optimized the byte coding for multiple assignments like "a,b=b,a" and |
| 1668 | "a,b,c=1,2,3". Improves their speed by 25% to 30%. |
| 1669 | |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 1670 | - Limit the nested depth of a tuple for the second argument to isinstance() |
| 1671 | and issubclass() to the recursion limit of the interpreter. |
| 1672 | Fixes bug #858016 . |
| 1673 | |
Raymond Hettinger | ade08ea | 2004-03-18 09:48:12 +0000 | [diff] [blame] | 1674 | - Optimized dict iterators, creating separate types for each |
| 1675 | and having them reveal their length. Also optimized the |
| 1676 | methods: keys(), values(), and items(). |
| 1677 | |
Raymond Hettinger | dd80f76 | 2004-03-07 07:31:06 +0000 | [diff] [blame] | 1678 | - Implemented a newcode opcode, LIST_APPEND, that simplifies |
| 1679 | the generated bytecode for list comprehensions and further |
| 1680 | improves their performance (about 35%). |
| 1681 | |
Michael W. Hudson | d3b33b5 | 2004-02-19 19:35:22 +0000 | [diff] [blame] | 1682 | - Implemented rich comparisons for floats, which seems to make |
| 1683 | comparisons involving NaNs somewhat less surprising when the |
| 1684 | underlying C compiler actually implements C99 semantics. |
| 1685 | |
Raymond Hettinger | fa7b9d8 | 2004-02-15 04:06:39 +0000 | [diff] [blame] | 1686 | - Optimized list.extend() to save memory and no longer create |
| 1687 | intermediate sequences. Also, extend() now pre-allocates the |
| 1688 | needed memory whenever the length of the iterable is known in |
| 1689 | advance -- this halves the time to extend the list. |
| 1690 | |
Raymond Hettinger | 4bb9540 | 2004-02-13 11:36:39 +0000 | [diff] [blame] | 1691 | - Optimized list resize operations to make fewer calls to the system |
| 1692 | realloc(). Significantly speeds up list appends, list pops, |
Walter Dörwald | 09515af | 2005-03-18 10:28:24 +0000 | [diff] [blame] | 1693 | list comprehensions, and the list constructor (when the input iterable |
Raymond Hettinger | 4bb9540 | 2004-02-13 11:36:39 +0000 | [diff] [blame] | 1694 | length is not known). |
| 1695 | |
| 1696 | - Changed the internal list over-allocation scheme. For larger lists, |
| 1697 | overallocation ranged between 3% and 25%. Now, it is a constant 12%. |
Raymond Hettinger | ab517d2 | 2004-02-14 18:34:46 +0000 | [diff] [blame] | 1698 | For smaller lists (n<8), overallocation was upto eight elements. Now, |
| 1699 | the overallocation is no more than three elements -- this improves space |
Raymond Hettinger | 4bb9540 | 2004-02-13 11:36:39 +0000 | [diff] [blame] | 1700 | utilization for applications that have large numbers of small lists. |
| 1701 | |
Raymond Hettinger | 0468e41 | 2004-05-05 05:37:53 +0000 | [diff] [blame] | 1702 | - Most list bodies now get re-used rather than freed. Speeds up list |
| 1703 | instantiation and deletion by saving calls to malloc() and free(). |
| 1704 | |
Raymond Hettinger | 31017ae | 2004-03-04 08:25:44 +0000 | [diff] [blame] | 1705 | - The dict.update() method now accepts all the same argument forms |
| 1706 | as the dict() constructor. This now includes item lists and/or |
| 1707 | keyword arguments. |
| 1708 | |
Michael W. Hudson | ecfeb7f | 2004-02-12 15:28:27 +0000 | [diff] [blame] | 1709 | - Support for arbitrary objects supporting the read-only buffer |
| 1710 | interface as the co_code field of code objects (something that was |
| 1711 | only possible to create from C code) has been removed. |
| 1712 | |
Fred Drake | 228765b | 2004-02-06 04:15:22 +0000 | [diff] [blame] | 1713 | - Made omitted callback and None equivalent for weakref.ref() and |
| 1714 | weakref.proxy(); the None case wasn't handled correctly in all |
| 1715 | cases. |
| 1716 | |
| 1717 | - Fixed problem where PyWeakref_NewRef() and PyWeakref_NewProxy() |
| 1718 | assumed that initial existing entries in an object's weakref list |
| 1719 | would not be removed while allocating a new weakref object. Since |
| 1720 | GC could be invoked at that time, however, that assumption was |
| 1721 | invalid. In a truly obscure case of GC being triggered during |
| 1722 | creation for a new weakref object for an referent which already |
| 1723 | has a weakref without a callback which is only referenced from |
| 1724 | cyclic trash, a memory error can occur. This consistently created a |
| 1725 | segfault in a debug build, but provided less predictable behavior in |
| 1726 | a release build. |
| 1727 | |
Hye-Shik Chang | ff83c2b | 2004-02-02 13:39:01 +0000 | [diff] [blame] | 1728 | - input() builtin function now respects compiler flags such as |
| 1729 | __future__ statements. SF patch 876178. |
| 1730 | |
Fred Drake | 713ade6 | 2003-12-05 17:43:47 +0000 | [diff] [blame] | 1731 | - Removed PendingDeprecationWarning from apply(). apply() remains |
Raymond Hettinger | c0d49d8 | 2003-12-15 19:24:34 +0000 | [diff] [blame] | 1732 | deprecated, but the nuisance warning will not be issued. |
Fred Drake | 713ade6 | 2003-12-05 17:43:47 +0000 | [diff] [blame] | 1733 | |
Tim Peters | 1d7323e | 2003-12-01 21:35:27 +0000 | [diff] [blame] | 1734 | - At Python shutdown time (Py_Finalize()), 2.3 called cyclic garbage |
| 1735 | collection twice, both before and after tearing down modules. The |
| 1736 | call after tearing down modules has been disabled, because too much |
| 1737 | of Python has been torn down then for __del__ methods and weakref |
| 1738 | callbacks to execute sanely. The most common symptom was a sequence |
| 1739 | of uninformative messages on stderr when Python shut down, produced |
| 1740 | by threads trying to raise exceptions, but unable to report the nature |
| 1741 | of their problems because too much of the sys module had already been |
| 1742 | destroyed. |
| 1743 | |
Guido van Rossum | 6c9e130 | 2003-11-29 23:52:13 +0000 | [diff] [blame] | 1744 | - Removed FutureWarnings related to hex/oct literals and conversions |
| 1745 | and left shifts. (Thanks to Kalle Svensson for SF patch 849227.) |
| 1746 | This addresses most of the remaining semantic changes promised by |
| 1747 | PEP 237, except for repr() of a long, which still shows the trailing |
| 1748 | 'L'. The PEP appears to promise warnings for operations that |
| 1749 | changed semantics compared to Python 2.3, but this is not |
| 1750 | implemented; we've suffered through enough warnings related to |
| 1751 | hex/oct literals and I think it's best to be silent now. |
| 1752 | |
Raymond Hettinger | 4f8f976 | 2003-11-26 08:21:35 +0000 | [diff] [blame] | 1753 | - For str and unicode objects, the ljust(), center(), and rjust() |
| 1754 | methods now accept an optional argument specifying a fill |
| 1755 | character other than a space. |
| 1756 | |
Guido van Rossum | baf0f8f | 2003-11-22 23:55:50 +0000 | [diff] [blame] | 1757 | - When method objects have an attribute that can be satisfied either |
| 1758 | by the function object or by the method object, the function |
| 1759 | object's attribute usually wins. Christian Tismer pointed out that |
| 1760 | that this is really a mistake, because this only happens for special |
| 1761 | methods (like __reduce__) where the method object's version is |
| 1762 | really more appropriate than the function's attribute. So from now |
| 1763 | on, all method attributes will have precedence over function |
| 1764 | attributes with the same name. |
| 1765 | |
Tim Peters | 403a203 | 2003-11-20 21:21:46 +0000 | [diff] [blame] | 1766 | - Critical bugfix, for SF bug 839548: if a weakref with a callback, |
| 1767 | its callback, and its weakly referenced object, all became part of |
| 1768 | cyclic garbage during a single run of garbage collection, the order |
| 1769 | in which they were torn down was unpredictable. It was possible for |
| 1770 | the callback to see partially-torn-down objects, leading to immediate |
| 1771 | segfaults, or, if the callback resurrected garbage objects, to |
| 1772 | resurrect insane objects that caused segfaults (or other surprises) |
| 1773 | later. In one sense this wasn't surprising, because Python's cyclic gc |
| 1774 | had no knowledge of Python's weakref objects. It does now. When |
| 1775 | weakrefs with callbacks become part of cyclic garbage now, those |
| 1776 | weakrefs are cleared first. The callbacks don't trigger then, |
| 1777 | preventing the problems. If you need callbacks to trigger, then just |
| 1778 | as when cyclic gc is not involved, you need to write your code so |
| 1779 | that weakref objects outlive the objects they weakly reference. |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1780 | |
Tim Peters | add09b4 | 2003-11-12 20:43:28 +0000 | [diff] [blame] | 1781 | - Critical bugfix, for SF bug 840829: if cyclic garbage collection |
| 1782 | happened to occur during a weakref callback for a new-style class |
| 1783 | instance, subtle memory corruption was the result (in a release build; |
| 1784 | in a debug build, a segfault occurred reliably very soon after). |
| 1785 | This has been repaired. |
| 1786 | |
Tim Peters | 403a203 | 2003-11-20 21:21:46 +0000 | [diff] [blame] | 1787 | - Compiler flags set in PYTHONSTARTUP are now active in __main__. |
| 1788 | |
| 1789 | - Added two builtin types, set() and frozenset(). |
| 1790 | |
Raymond Hettinger | 85c20a4 | 2003-11-06 14:06:48 +0000 | [diff] [blame] | 1791 | - Added a reversed() builtin function that returns a reverse iterator |
| 1792 | over a sequence. |
| 1793 | |
Raymond Hettinger | 64958a1 | 2003-12-17 20:43:33 +0000 | [diff] [blame] | 1794 | - Added a sorted() builtin function that returns a new sorted list |
Tim Peters | 2f50e90 | 2004-05-31 19:27:59 +0000 | [diff] [blame] | 1795 | from any iterable. |
Raymond Hettinger | 64958a1 | 2003-12-17 20:43:33 +0000 | [diff] [blame] | 1796 | |
Martin v. Löwis | 01a74b2 | 2003-10-19 18:30:01 +0000 | [diff] [blame] | 1797 | - CObjects are now mutable (on the C level) through PyCObject_SetVoidPtr. |
| 1798 | |
Raymond Hettinger | 42b1ba3 | 2003-10-16 03:41:09 +0000 | [diff] [blame] | 1799 | - list.sort() now supports three keyword arguments: cmp, key, and reverse. |
| 1800 | The key argument can be a function of one argument that extracts a |
| 1801 | comparison key from the original record: mylist.sort(key=str.lower). |
| 1802 | The reverse argument is a boolean value and if True will change the |
| 1803 | sort order as if the comparison arguments were reversed. In addition, |
| 1804 | the documentation has been amended to provide a guarantee that all sorts |
| 1805 | starting with Py2.3 are guaranteed to be stable (the relative order of |
| 1806 | records with equal keys is unchanged). |
| 1807 | |
Marc-André Lemburg | d7160f8 | 2003-09-22 11:14:40 +0000 | [diff] [blame] | 1808 | - Added test whether wchar_t is signed or not. A signed wchar_t is not |
| 1809 | usable as internal unicode type base for Py_UNICODE since the |
| 1810 | unicode implementation assumes an unsigned type. |
| 1811 | |
Jeremy Hylton | d808279 | 2003-09-16 19:41:39 +0000 | [diff] [blame] | 1812 | - Fixed a bug in the cache of length-one Unicode strings that could |
| 1813 | lead to a seg fault. The specific problem occurred when an earlier, |
| 1814 | non-fatal error left an uninitialized Unicode object in the |
| 1815 | freelist. |
| 1816 | |
Raymond Hettinger | 9bfe533 | 2003-08-27 04:55:52 +0000 | [diff] [blame] | 1817 | - The % formatting operator now supports '%F' which is equivalent to |
| 1818 | '%f'. This has always been documented but never implemented. |
| 1819 | |
Tim Peters | 465fa3d | 2003-08-15 01:16:37 +0000 | [diff] [blame] | 1820 | - complex(obj) could leak a little memory if obj wasn't a string or |
| 1821 | number. |
| 1822 | |
Raymond Hettinger | eaef615 | 2003-08-02 07:42:57 +0000 | [diff] [blame] | 1823 | - zip() with no arguments now returns an empty list instead of raising |
| 1824 | a TypeError exception. |
| 1825 | |
Guido van Rossum | 02c58f8 | 2003-10-08 21:08:29 +0000 | [diff] [blame] | 1826 | - obj.__contains__() now returns True/False instead of 1/0. SF patch |
| 1827 | 820195. |
| 1828 | |
Armin Rigo | 2b3eb40 | 2003-10-28 12:05:48 +0000 | [diff] [blame] | 1829 | - Python no longer tries to be smart about recursive comparisons. |
| 1830 | When comparing containers with cyclic references to themselves it |
| 1831 | will now just hit the recursion limit. See SF patch 825639. |
| 1832 | |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 1833 | - str and unicode builtin types now have an rsplit() method that is |
Raymond Hettinger | c0d49d8 | 2003-12-15 19:24:34 +0000 | [diff] [blame] | 1834 | same as split() except that it scans the string from the end |
| 1835 | working towards the beginning. See SF feature request 801847. |
Hye-Shik Chang | 060ebed | 2003-12-15 18:51:19 +0000 | [diff] [blame] | 1836 | |
Jim Fulton | 8a1a594 | 2004-02-08 04:21:26 +0000 | [diff] [blame] | 1837 | - Fixed a bug in object.__reduce_ex__ when using protocol 2. Failure |
| 1838 | to clear the error when attempts to get the __getstate__ attribute |
| 1839 | fail caused intermittent errors and odd behavior. |
| 1840 | |
Neil Schemenauer | 4252a7a | 2004-03-11 02:42:45 +0000 | [diff] [blame] | 1841 | - buffer objects based on other objects no longer cache a pointer to |
| 1842 | the data and the data length. Instead, the appropriate tp_as_buffer |
Tim Peters | 2f50e90 | 2004-05-31 19:27:59 +0000 | [diff] [blame] | 1843 | method is called as necessary. |
Neil Schemenauer | 4252a7a | 2004-03-11 02:42:45 +0000 | [diff] [blame] | 1844 | |
Tim Peters | 2f50e90 | 2004-05-31 19:27:59 +0000 | [diff] [blame] | 1845 | - fixed: if a file is opened with an explicit buffer size >= 1, repeated |
Andrew MacIntyre | 4e10ed3 | 2004-04-04 07:01:35 +0000 | [diff] [blame] | 1846 | close() calls would attempt to free() the buffer already free()ed on |
| 1847 | the first call. |
| 1848 | |
Neil Schemenauer | 4252a7a | 2004-03-11 02:42:45 +0000 | [diff] [blame] | 1849 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 1850 | Extension modules |
| 1851 | ----------------- |
| 1852 | |
Barry Warsaw | 11b91a0 | 2004-06-28 00:50:43 +0000 | [diff] [blame] | 1853 | - Added socket.getservbyport(), and make the second argument in |
| 1854 | getservbyname() and getservbyport() optional. |
| 1855 | |
Tim Peters | 1b6f7a9 | 2004-06-20 02:50:16 +0000 | [diff] [blame] | 1856 | - time module code that deals with input POSIX timestamps will now raise |
| 1857 | ValueError if more than a second is lost in precision when the |
| 1858 | timestamp is cast to the platform C time_t type. There's no chance |
| 1859 | that the platform will do anything sensible with the result in such |
| 1860 | cases. This includes ctime(), localtime() and gmtime(). Assorted |
| 1861 | fromtimestamp() and utcfromtimestamp() methods in the datetime module |
| 1862 | were also protected. Closes bugs #919012 and 975996. |
Brett Cannon | b46ed71 | 2004-06-19 20:50:47 +0000 | [diff] [blame] | 1863 | |
Martin v. Löwis | 77ca6c4 | 2004-06-03 12:47:26 +0000 | [diff] [blame] | 1864 | - fcntl.ioctl now warns if the mutate flag is not specified. |
| 1865 | |
Martin v. Löwis | d894872 | 2004-06-02 09:57:56 +0000 | [diff] [blame] | 1866 | - nt now properly allows to refer to UNC roots, e.g. in nt.stat(). |
| 1867 | |
Raymond Hettinger | 027bb63 | 2004-05-31 03:09:25 +0000 | [diff] [blame] | 1868 | - the weakref module now supports additional objects: array.array, |
| 1869 | sre.pattern_objects, file objects, and sockets. |
| 1870 | |
Raymond Hettinger | e2eda60 | 2004-04-04 08:51:41 +0000 | [diff] [blame] | 1871 | - operator.isMappingType() and operator.isSequenceType() now give |
| 1872 | fewer false positives. |
| 1873 | |
Brett Cannon | 06c3479 | 2004-03-23 23:16:54 +0000 | [diff] [blame] | 1874 | - socket.sslerror is now a subclass of socket.error . Also added |
| 1875 | socket.error to the socket module's C API. |
| 1876 | |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 1877 | - Bug #920575: A problem where the _locale module segfaults on |
Hye-Shik Chang | c3a87b8 | 2004-03-21 19:34:30 +0000 | [diff] [blame] | 1878 | nl_langinfo(ERA) caused by GNU libc's illegal NULL return is fixed. |
| 1879 | |
Raymond Hettinger | 6e2ee86 | 2004-03-14 04:37:50 +0000 | [diff] [blame] | 1880 | - array objects now support the copy module. Also, their resizing |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 1881 | scheme has been updated to match that used for list objects. This improves |
Raymond Hettinger | 49f9bd1 | 2004-03-14 05:43:59 +0000 | [diff] [blame] | 1882 | the performance (speed and memory usage) of append() operations. |
Raymond Hettinger | 6ab78cd | 2004-08-29 07:50:43 +0000 | [diff] [blame] | 1883 | Also, array.array() and array.extend() now accept any iterable argument |
| 1884 | for repeated appends without needing to create another temporary array. |
Raymond Hettinger | 3aa82c0 | 2004-03-13 18:18:51 +0000 | [diff] [blame] | 1885 | |
Raymond Hettinger | 3e47f65 | 2004-03-08 18:22:35 +0000 | [diff] [blame] | 1886 | - cStringIO.writelines() now accepts any iterable argument and writes |
| 1887 | the lines one at a time rather than joining them and writing once. |
| 1888 | Made a parallel change to StringIO.writelines(). Saves memory and |
| 1889 | makes suitable for use with generator expressions. |
| 1890 | |
Brett Cannon | d1080a3 | 2004-03-02 04:38:10 +0000 | [diff] [blame] | 1891 | - time.strftime() now checks that the values in its time tuple argument |
| 1892 | are within the proper boundaries to prevent possible crashes from the |
| 1893 | platform's C library implementation of strftime(). Can possibly |
| 1894 | break code that uses values outside the range that didn't cause |
| 1895 | problems previously (such as sitting day of year to 0). Fixes bug |
| 1896 | #897625. |
| 1897 | |
Martin v. Löwis | 12af048 | 2004-01-31 12:34:17 +0000 | [diff] [blame] | 1898 | - The socket module now supports Bluetooth sockets, if the |
| 1899 | system has <bluetooth/bluetooth.h> |
| 1900 | |
Raymond Hettinger | 756b3f3 | 2004-01-29 06:37:52 +0000 | [diff] [blame] | 1901 | - Added a collections module containing a new datatype, deque(), |
| 1902 | offering high-performance, thread-safe, memory friendly appends |
| 1903 | and pops on either side of the deque. |
| 1904 | |
| 1905 | - Several modules now take advantage of collections.deque() for |
| 1906 | improved performance: Queue, mutex, shlex, threading, and pydoc. |
| 1907 | |
Raymond Hettinger | 166958b | 2003-12-01 13:18:39 +0000 | [diff] [blame] | 1908 | - The operator module has two new functions, attrgetter() and |
| 1909 | itemgetter() which are useful for creating fast data extractor |
| 1910 | functions for map(), list.sort(), itertools.groupby(), and |
| 1911 | other functions that expect a function argument. |
| 1912 | |
Martin v. Löwis | 94681fc | 2003-11-27 19:40:22 +0000 | [diff] [blame] | 1913 | - socket.SHUT_{RD,WR,RDWR} was added. |
| 1914 | |
Martin v. Löwis | d892137 | 2003-11-10 06:44:44 +0000 | [diff] [blame] | 1915 | - os.getsid was added. |
| 1916 | |
Guido van Rossum | 16b9fa8 | 2003-10-23 23:54:57 +0000 | [diff] [blame] | 1917 | - The pwd module incorrectly advertised its struct type as |
| 1918 | struct_pwent; this has been renamed to struct_passwd. (The old name |
| 1919 | is still supported for backwards compatibility.) |
| 1920 | |
Fred Drake | de05032 | 2003-10-21 15:41:59 +0000 | [diff] [blame] | 1921 | - The xml.parsers.expat module now provides Expat 1.95.7. |
| 1922 | |
Martin v. Löwis | 3bbd654 | 2003-10-03 13:57:37 +0000 | [diff] [blame] | 1923 | - socket.IPPROTO_IPV6 was added. |
| 1924 | |
Martin v. Löwis | e7a9796 | 2003-09-20 16:08:33 +0000 | [diff] [blame] | 1925 | - readline.clear_history was added. |
| 1926 | |
Brett Cannon | 62dba4c | 2003-09-10 19:37:42 +0000 | [diff] [blame] | 1927 | - select.select() now accepts sequences for its first three arguments. |
| 1928 | |
Raymond Hettinger | 5475f23 | 2003-08-08 12:20:03 +0000 | [diff] [blame] | 1929 | - cStringIO now supports the f.closed attribute. |
| 1930 | |
Anthony Baxter | 83f5291 | 2003-08-05 06:33:56 +0000 | [diff] [blame] | 1931 | - The signal module now exposes SIGRTMIN and SIGRTMAX (if available). |
| 1932 | |
Andrew M. Kuchling | 69f31eb | 2003-08-13 23:11:04 +0000 | [diff] [blame] | 1933 | - curses module now supports use_default_colors(). [patch #739124] |
| 1934 | |
Anthony Baxter | 5c68ef0 | 2003-10-04 08:04:04 +0000 | [diff] [blame] | 1935 | - Bug #811028: ncurses.h breakage on FreeBSD/MacOS X |
| 1936 | |
| 1937 | - Bug #814613: INET_ADDRSTRLEN fix needed for all compilers on SGI |
| 1938 | |
Gustavo Niemeyer | ad3fc44 | 2003-10-17 22:13:16 +0000 | [diff] [blame] | 1939 | - Implemented non-recursive SRE matching scheme (#757624). |
| 1940 | |
| 1941 | - Implemented (?(id/name)yes|no) support in SRE (#572936). |
| 1942 | |
Raymond Hettinger | 6a5b027 | 2003-10-24 08:45:23 +0000 | [diff] [blame] | 1943 | - random.seed() with no arguments or None uses time.time() as a default |
| 1944 | seed. Modified to match Py2.2 behavior and use fractional seconds so |
| 1945 | that successive runs are more likely to produce different sequences. |
| 1946 | |
| 1947 | - random.Random has a new method, getrandbits(k), which returns an int |
| 1948 | with k random bits. This method is now an optional part of the API |
| 1949 | for user defined generators. Any generator that defines genrandbits() |
| 1950 | can now use randrange() for ranges with a length >= 2**53. Formerly, |
| 1951 | randrange would return only even numbers for ranges that large (see |
| 1952 | SF bug #812202). Generators that do not define genrandbits() now |
| 1953 | issue a warning when randrange() is called with a range that large. |
| 1954 | |
Raymond Hettinger | d25c1c6 | 2003-12-06 16:23:06 +0000 | [diff] [blame] | 1955 | - itertools has a new function, groupby() for aggregating iterables |
| 1956 | into groups sharing the same key (as determined by a key function). |
| 1957 | It offers some of functionality of SQL's groupby keyword and of |
| 1958 | the Unix uniq filter. |
Brett Cannon | 21beb4c | 2004-03-25 16:55:12 +0000 | [diff] [blame] | 1959 | |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 1960 | - itertools now has a new tee() function which produces two independent |
Raymond Hettinger | 6a5b027 | 2003-10-24 08:45:23 +0000 | [diff] [blame] | 1961 | iterators from a single iterable. |
| 1962 | |
| 1963 | - itertools.izip() with no arguments now returns an empty iterator instead |
| 1964 | of raising a TypeError exception. |
| 1965 | |
Gustavo Niemeyer | a6e436e | 2004-02-14 00:02:45 +0000 | [diff] [blame] | 1966 | - Fixed #853061: allow BZ2Compressor.compress() to receive an empty string |
| 1967 | as parameter. |
| 1968 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 1969 | Library |
| 1970 | ------- |
Tim Peters | 183dabc | 2004-07-11 19:26:19 +0000 | [diff] [blame] | 1971 | |
Georg Brandl | f0de6a1 | 2005-08-22 18:02:59 +0000 | [diff] [blame] | 1972 | - Bug #1266283: The new function "lexists" is now in os.path.__all__. |
| 1973 | |
Guido van Rossum | 5124b4a | 2004-07-06 17:52:32 +0000 | [diff] [blame] | 1974 | - Bug #981530: Fix UnboundLocalError in shutil.rmtree(). This affects |
| 1975 | the documented behavior: the function passed to the onerror() |
| 1976 | handler can now also be os.listdir. |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 1977 | |
Brett Cannon | 41d13f6 | 2004-07-03 03:54:54 +0000 | [diff] [blame] | 1978 | - Bug #754449: threading.Thread objects no longer mask exceptions raised during |
| 1979 | interpreter shutdown with another exception from attempting to handle the |
| 1980 | original exception. |
Brett Cannon | cc4e935 | 2004-07-03 03:52:35 +0000 | [diff] [blame] | 1981 | |
Raymond Hettinger | 21f9fce | 2004-07-10 16:11:03 +0000 | [diff] [blame] | 1982 | - Added decimal.py per PEP 327. |
Raymond Hettinger | 7c85fa4 | 2004-07-01 11:01:35 +0000 | [diff] [blame] | 1983 | |
Brett Cannon | 46d4ff2 | 2004-06-29 04:08:23 +0000 | [diff] [blame] | 1984 | - Bug #981299: rsync is now a recognized protocol in urlparse that uses a |
| 1985 | "netloc" portion of a URL. |
Brett Cannon | fbac294 | 2004-06-29 04:02:40 +0000 | [diff] [blame] | 1986 | |
Brett Cannon | 1c3fa18 | 2004-06-19 21:11:35 +0000 | [diff] [blame] | 1987 | - Bug #919012: shutil.move() will not try to move a directory into itself. |
| 1988 | Thanks Johannes Gijsbers. |
| 1989 | |
Brett Cannon | c6c1f47 | 2004-06-19 01:02:51 +0000 | [diff] [blame] | 1990 | - Bug #934282: pydoc.stripid() is now case-insensitive. Thanks Robin Becker. |
| 1991 | |
Raymond Hettinger | b67ad7e | 2004-06-14 07:40:10 +0000 | [diff] [blame] | 1992 | - Bug #823209: cmath.log() now takes an optional base argument so that its |
Brett Cannon | c6c1f47 | 2004-06-19 01:02:51 +0000 | [diff] [blame] | 1993 | API matches math.log(). |
Raymond Hettinger | b67ad7e | 2004-06-14 07:40:10 +0000 | [diff] [blame] | 1994 | |
Anthony Baxter | c982bbd | 2004-06-11 17:16:46 +0000 | [diff] [blame] | 1995 | - Bug #957381: distutils bdist_rpm no longer fails on recent RPM versions |
Anthony Baxter | 1a4ddae | 2004-08-31 10:07:13 +0000 | [diff] [blame] | 1996 | that generate a -debuginfo.rpm |
Anthony Baxter | c982bbd | 2004-06-11 17:16:46 +0000 | [diff] [blame] | 1997 | |
Martin v. Löwis | bdec50f | 2004-06-08 08:29:33 +0000 | [diff] [blame] | 1998 | - os.path.devnull has been added for all supported platforms. |
| 1999 | |
Hye-Shik Chang | 2400e93 | 2004-06-05 18:37:53 +0000 | [diff] [blame] | 2000 | - Fixed #877165: distutils now picks the right C++ compiler command |
| 2001 | on cygwin and mingw32. |
| 2002 | |
Hye-Shik Chang | 39aef79 | 2004-06-05 13:30:56 +0000 | [diff] [blame] | 2003 | - urllib.urlopen().readline() now handles HTTP/0.9 correctly. |
| 2004 | |
Brett Cannon | 0096e26 | 2004-06-05 01:12:51 +0000 | [diff] [blame] | 2005 | - refactored site.py into functions. Also wrote regression tests for the |
| 2006 | module. |
| 2007 | |
Fred Drake | ec6229e | 2004-06-25 23:02:59 +0000 | [diff] [blame] | 2008 | - The distutils install command now supports the --home option and |
| 2009 | installation scheme for all platforms. |
| 2010 | |
Michael W. Hudson | c30ba84 | 2004-06-30 09:06:29 +0000 | [diff] [blame] | 2011 | - asyncore.loop now has a repeat count parameter that defaults to |
Michael W. Hudson | 7db865a | 2004-06-30 09:09:38 +0000 | [diff] [blame] | 2012 | looping forever. |
Michael W. Hudson | c30ba84 | 2004-06-30 09:06:29 +0000 | [diff] [blame] | 2013 | |
Tim Peters | 2f50e90 | 2004-05-31 19:27:59 +0000 | [diff] [blame] | 2014 | - The distutils sdist command now ignores all .svn directories, in |
| 2015 | addition to CVS and RCS directories. .svn directories hold |
| 2016 | administrative files for the Subversion source control system. |
| 2017 | |
Martin v. Löwis | 2a6ba90 | 2004-05-31 18:22:40 +0000 | [diff] [blame] | 2018 | - Added a new module: cookielib. Automatic cookie handling for HTTP |
| 2019 | clients. Also, support for cookielib has been added to urllib2, so |
| 2020 | urllib2.urlopen() can transparently handle cookies. |
| 2021 | |
Raymond Hettinger | 059e170 | 2004-05-19 19:56:44 +0000 | [diff] [blame] | 2022 | - stringprep.py now uses built-in set() instead of sets.Set(). |
| 2023 | |
Thomas Heller | 2e7c832 | 2004-05-11 15:10:59 +0000 | [diff] [blame] | 2024 | - Bug #876278: Unbounded recursion in modulefinder |
| 2025 | |
Martin v. Löwis | 456ab1d | 2004-05-06 01:54:36 +0000 | [diff] [blame] | 2026 | - Bug #780300: Swap public and system ID in LexicalHandler.startDTD. |
| 2027 | Applications relying on the wrong order need to be corrected. |
| 2028 | |
Hye-Shik Chang | 0f5bf1e | 2004-04-20 21:11:11 +0000 | [diff] [blame] | 2029 | - Bug #926075: Fixed a bug that returns a wrong pattern object |
| 2030 | for a string or unicode object in sre.compile() when a different |
| 2031 | type pattern with the same value exists. |
| 2032 | |
Skip Montanaro | d0c0c41 | 2004-04-07 16:03:02 +0000 | [diff] [blame] | 2033 | - Added countcallers arg to trace.Trace class (--trackcalls command line arg |
| 2034 | when run from the command prompt). |
| 2035 | |
Brett Cannon | 21beb4c | 2004-03-25 16:55:12 +0000 | [diff] [blame] | 2036 | - Fixed a caching bug in platform.platform() where the argument of 'terse' was |
| 2037 | not taken into consideration when caching value. |
| 2038 | |
Nicholas Bastin | 824b1b2 | 2004-03-23 18:44:39 +0000 | [diff] [blame] | 2039 | - Added two new command-line arguments for profile (output file and |
| 2040 | default sort). |
| 2041 | |
Nicholas Bastin | 1eb4bfc | 2004-03-22 20:12:56 +0000 | [diff] [blame] | 2042 | - Added global runctx function to profile module |
| 2043 | |
Martin v. Löwis | 347c30d | 2004-03-21 15:29:41 +0000 | [diff] [blame] | 2044 | - Add hlist missing entryconfigure and entrycget methods. |
| 2045 | |
Hye-Shik Chang | 4a7ad1a | 2004-03-19 08:11:56 +0000 | [diff] [blame] | 2046 | - The ptcp154 codec was added for Kazakh character set support. |
| 2047 | |
Martin v. Löwis | a79449e | 2004-02-15 21:19:18 +0000 | [diff] [blame] | 2048 | - Support non-anonymous ftp URLs in urllib2. |
| 2049 | |
Andrew M. Kuchling | 81e3fb4 | 2004-07-04 15:41:59 +0000 | [diff] [blame] | 2050 | - The encodings package will now apply codec name aliases |
Marc-André Lemburg | 57cb68f | 2004-01-20 18:24:34 +0000 | [diff] [blame] | 2051 | first before starting to try the import of the codec module. |
| 2052 | This simplifies overriding built-in codecs with external |
| 2053 | packages, e.g. the included CJK codecs with the JapaneseCodecs |
| 2054 | package, by adjusting the aliases dictionary in encodings.aliases |
| 2055 | accordingly. |
| 2056 | |
Barry Warsaw | 30ff12f | 2004-01-04 01:13:43 +0000 | [diff] [blame] | 2057 | - base64 now supports RFC 3548 Base16, Base32, and Base64 encoding and |
| 2058 | decoding standards. |
| 2059 | |
Jeremy Hylton | 37c5f2a | 2003-12-14 05:29:45 +0000 | [diff] [blame] | 2060 | - urllib2 now supports processors. A processor is a handler that |
| 2061 | implements an xxx_request or xxx_response method. These methods are |
| 2062 | called for all requests. |
| 2063 | |
Thomas Heller | c7501d5 | 2003-12-05 20:28:07 +0000 | [diff] [blame] | 2064 | - distutils compilers now compile source files in the same order as |
| 2065 | they are passed to the compiler. |
| 2066 | |
Walter Dörwald | c8de458 | 2003-12-03 20:26:05 +0000 | [diff] [blame] | 2067 | - pprint.pprint() and pprint.pformat() now have additional parameters |
| 2068 | indent, width and depth. |
| 2069 | |
Walter Dörwald | 7a7ede5 | 2003-12-03 20:15:28 +0000 | [diff] [blame] | 2070 | - Patch #750542: pprint now will pretty print subclasses of list, tuple |
| 2071 | and dict too, as long as they don't overwrite __repr__(). |
| 2072 | |
Thomas Heller | b310591 | 2003-11-28 19:42:56 +0000 | [diff] [blame] | 2073 | - Bug #848614: distutils' msvccompiler fails to find the MSVC6 |
| 2074 | compiler because of incomplete registry entries. |
| 2075 | |
Martin v. Löwis | af7dc8d | 2003-11-19 19:51:55 +0000 | [diff] [blame] | 2076 | - httplib.HTTP.putrequest now offers to omit the implicit Accept-Encoding. |
| 2077 | |
Thomas Heller | cf0005b | 2003-11-14 10:33:20 +0000 | [diff] [blame] | 2078 | - Patch #841977: modulefinder didn't find extension modules in packages |
| 2079 | |
Martin v. Löwis | d892137 | 2003-11-10 06:44:44 +0000 | [diff] [blame] | 2080 | - imaplib.IMAP4.thread was added. |
| 2081 | |
Guido van Rossum | 967b063 | 2003-11-10 02:27:19 +0000 | [diff] [blame] | 2082 | - Plugged a minor hole in tempfile.mktemp() due to the use of |
| 2083 | os.path.exists(), switched to using os.lstat() directly if possible. |
| 2084 | |
Raymond Hettinger | 0c41027 | 2004-01-05 10:13:35 +0000 | [diff] [blame] | 2085 | - bisect.py and heapq.py now have underlying C implementations |
Raymond Hettinger | 33ecffb | 2004-06-10 05:03:17 +0000 | [diff] [blame] | 2086 | for better performance. |
| 2087 | |
Anthony Baxter | c982bbd | 2004-06-11 17:16:46 +0000 | [diff] [blame] | 2088 | - heapq.py has two new functions, nsmallest() and nlargest(). |
Raymond Hettinger | b3af181 | 2003-11-08 10:24:38 +0000 | [diff] [blame] | 2089 | |
Neil Schemenauer | f607fc5 | 2003-11-05 23:03:00 +0000 | [diff] [blame] | 2090 | - traceback.format_exc has been added (similar to print_exc but it returns |
| 2091 | a string). |
| 2092 | |
Martin v. Löwis | 45394c2 | 2003-10-31 13:49:36 +0000 | [diff] [blame] | 2093 | - xmlrpclib.MultiCall has been added. |
| 2094 | |
Martin v. Löwis | 48440b7 | 2003-10-31 12:52:35 +0000 | [diff] [blame] | 2095 | - poplib.POP3_SSL has been added. |
| 2096 | |
Martin v. Löwis | d662548 | 2003-10-12 17:37:01 +0000 | [diff] [blame] | 2097 | - tmpfile.mkstemp now returns an absolute path even if dir is relative. |
| 2098 | |
Brett Cannon | 5d9ca4e | 2003-10-12 04:38:48 +0000 | [diff] [blame] | 2099 | - urlparse is RFC 2396 compliant. |
| 2100 | |
Skip Montanaro | def9934 | 2003-10-03 14:07:07 +0000 | [diff] [blame] | 2101 | - The fieldnames argument to the csv module's DictReader constructor is now |
| 2102 | optional. If omitted, the first row of the file will be used as the |
| 2103 | list of fieldnames. |
| 2104 | |
Raymond Hettinger | 9a80c5d | 2003-09-23 20:21:01 +0000 | [diff] [blame] | 2105 | - encodings.bz2_codec was added for access to bz2 compression |
| 2106 | using "a long string".encode('bz2') |
| 2107 | |
Guido van Rossum | 0e5a51d | 2003-09-22 15:03:11 +0000 | [diff] [blame] | 2108 | - Various improvements to unittest.py, realigned with PyUnit CVS. |
| 2109 | |
Martin v. Löwis | c6bb6c0 | 2003-09-20 15:52:21 +0000 | [diff] [blame] | 2110 | - dircache now passes exceptions to the caller, instead of returning |
| 2111 | empty lists. |
| 2112 | |
Raymond Hettinger | deadbf5 | 2003-09-12 06:33:37 +0000 | [diff] [blame] | 2113 | - The bsddb module and dbhash module now support the iterator and |
| 2114 | mapping protocols which make them more substitutable for dictionaries |
| 2115 | and shelves. |
| 2116 | |
Skip Montanaro | 3f7a948 | 2003-09-06 19:52:12 +0000 | [diff] [blame] | 2117 | - The csv module's DictReader and DictWriter classes now accept keyword |
| 2118 | arguments. This was an omission in the initial implementation. |
| 2119 | |
Barry Warsaw | d24a2a4 | 2003-08-19 03:59:09 +0000 | [diff] [blame] | 2120 | - The email package handles some RFC 2231 parameters with missing |
Barry Warsaw | 2f5bf17 | 2003-09-03 04:09:49 +0000 | [diff] [blame] | 2121 | CHARSET fields better. It also includes a patch to parameter |
| 2122 | parsing when semicolons appear inside quotes. |
Barry Warsaw | d24a2a4 | 2003-08-19 03:59:09 +0000 | [diff] [blame] | 2123 | |
Raymond Hettinger | 6a18012 | 2003-08-17 08:34:09 +0000 | [diff] [blame] | 2124 | - sets.py now runs under Py2.2. In addition, the argument restrictions |
| 2125 | for most set methods (but not the operators) have been relaxed to |
Raymond Hettinger | 70b9f49 | 2003-11-19 15:52:14 +0000 | [diff] [blame] | 2126 | allow any iterable. |
Raymond Hettinger | ee562fc | 2003-08-15 21:17:04 +0000 | [diff] [blame] | 2127 | |
Raymond Hettinger | beb35f4 | 2003-08-05 12:32:41 +0000 | [diff] [blame] | 2128 | - _strptime.py now has a behind-the-scenes caching mechanism for the most |
Brett Cannon | b7150a2 | 2003-08-05 06:27:04 +0000 | [diff] [blame] | 2129 | recent TimeRE instance used along with the last five unique directive |
| 2130 | patterns. The overall module was also made more thread-safe. |
| 2131 | |
Raymond Hettinger | beb35f4 | 2003-08-05 12:32:41 +0000 | [diff] [blame] | 2132 | - random.cunifvariate() and random.stdgamma() were deprecated in Py2.3 |
| 2133 | and removed in Py2.4. |
| 2134 | |
Anthony Baxter | 92bee36 | 2003-11-04 14:35:49 +0000 | [diff] [blame] | 2135 | - Bug #823328: urllib2.py's HTTP Digest Auth support works again. |
| 2136 | |
Hye-Shik Chang | 84a9931 | 2004-01-17 14:59:36 +0000 | [diff] [blame] | 2137 | - Patch #873597: CJK codecs are imported into rank of default codecs. |
| 2138 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2139 | Tools/Demos |
| 2140 | ----------- |
| 2141 | |
Skip Montanaro | d5a21fd | 2004-01-27 14:49:04 +0000 | [diff] [blame] | 2142 | - A hotshotmain script was added to the Tools/scripts directory that |
| 2143 | makes it easy to run a script under control of the hotshot profiler. |
| 2144 | |
Skip Montanaro | 030f68a | 2003-10-28 16:24:00 +0000 | [diff] [blame] | 2145 | - The db2pickle and pickle2db scripts can now dump/load gdbm files. |
| 2146 | |
Skip Montanaro | e2b61e0 | 2004-03-03 17:42:08 +0000 | [diff] [blame] | 2147 | - The file order on the command line of the pickle2db script was reversed. |
| 2148 | It is now [ picklefile ] dbfile. This provides better symmetry with |
| 2149 | db2pickle. The file arguments to both scripts are now source followed by |
| 2150 | destination in situations where both files are given. |
| 2151 | |
Skip Montanaro | fd4fa88 | 2003-09-10 19:04:13 +0000 | [diff] [blame] | 2152 | - The pydoc script will display a link to the module documentation for |
| 2153 | modules determined to be part of the core distribution. The documentation |
| 2154 | base directory defaults to http://www.python.org/doc/current/lib/ but can |
| 2155 | be changed by setting the PYTHONDOCS environment variable. |
| 2156 | |
Raymond Hettinger | e41d4c8 | 2003-08-25 04:39:55 +0000 | [diff] [blame] | 2157 | - texcheck.py now detects double word errors. |
| 2158 | |
Tim Peters | 1a3abcb | 2003-08-18 23:52:09 +0000 | [diff] [blame] | 2159 | - md5sum.py mistakenly opened input files in text mode by default, a |
| 2160 | silent and dangerous change from previous releases. It once again |
| 2161 | opens input files in binary mode by default. The -t and -b flags |
| 2162 | remain for compatibility with the 2.3 release, but -b is the default |
| 2163 | now. |
| 2164 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2165 | - py-electric-colon now works when pending-delete/delete-selection mode is |
| 2166 | in effect |
| 2167 | |
| 2168 | - py-help-at-point is no longer bound to the F1 key - it's still bound to |
| 2169 | C-c C-h |
| 2170 | |
Barry Warsaw | 6ec58ca | 2003-09-03 03:20:37 +0000 | [diff] [blame] | 2171 | - Pynche was fixed to not crash when there is no ~/.pynche file and no |
| 2172 | -d option was given. |
| 2173 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2174 | Build |
| 2175 | ----- |
| 2176 | |
Brett Cannon | f6af76d | 2004-06-26 04:03:06 +0000 | [diff] [blame] | 2177 | - Bug #978645: Modules/getpath.c now builds properly in --disable-framework |
| 2178 | build under OS X. |
| 2179 | |
Skip Montanaro | 56f6a4f | 2004-06-18 02:47:22 +0000 | [diff] [blame] | 2180 | - Profiling using gprof is now available if Python is configured with |
| 2181 | --enable-profiling. |
| 2182 | |
Martin v. Löwis | f30d60e | 2004-06-08 08:17:44 +0000 | [diff] [blame] | 2183 | - Profiling the VM using the Pentium TSC is now possible if Python |
| 2184 | is configured --with-tsc. |
| 2185 | |
Martin v. Löwis | 642c8a1 | 2004-06-04 13:55:13 +0000 | [diff] [blame] | 2186 | - In order to find libraries, setup.py now also looks in /lib64, for use |
| 2187 | on AMD64. |
| 2188 | |
Hye-Shik Chang | 54f9439 | 2004-04-14 07:55:31 +0000 | [diff] [blame] | 2189 | - Bug #934635: Fixed a bug where the configure script couldn't detect |
| 2190 | getaddrinfo() properly if the KAME stack had SCTP support. |
| 2191 | |
Skip Montanaro | 7befb99 | 2004-02-10 16:50:21 +0000 | [diff] [blame] | 2192 | - Support for missing ANSI C header files (limits.h, stddef.h, etc) was |
| 2193 | removed. |
| 2194 | |
Skip Montanaro | db60805 | 2004-02-07 13:53:46 +0000 | [diff] [blame] | 2195 | - Systems requiring the D4, D6 or D7 variants of pthreads are no longer |
| 2196 | supported (see PEP 11). |
| 2197 | |
| 2198 | - Universal newline support can no longer be disabled (see PEP 11). |
| 2199 | |
Skip Montanaro | cd1f743 | 2004-01-17 14:22:44 +0000 | [diff] [blame] | 2200 | - Support for DGUX, SunOS 4, IRIX 4 and Minix was removed (see PEP 11). |
| 2201 | |
| 2202 | - Support for systems requiring --with-dl-dld or --with-sgi-dl was removed |
| 2203 | (see PEP 11). |
| 2204 | |
| 2205 | - Tests for sizeof(char) were removed since ANSI C mandates that |
| 2206 | sizeof(char) must be 1. |
| 2207 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2208 | C API |
| 2209 | ----- |
| 2210 | |
Tim Peters | 9ddf40b | 2004-06-20 22:41:32 +0000 | [diff] [blame] | 2211 | - Thanks to Anthony Tuininga, the datetime module now supplies a C API |
| 2212 | containing type-check macros and constructors. See new docs in the |
| 2213 | Python/C API Reference Manual for details. |
| 2214 | |
Tim Peters | 1b6f7a9 | 2004-06-20 02:50:16 +0000 | [diff] [blame] | 2215 | - Private function _PyTime_DoubleToTimet added, to convert a Python |
| 2216 | timestamp (C double) to platform time_t with some out-of-bounds |
| 2217 | checking. Declared in new header file timefuncs.h. It would be |
| 2218 | good to expose some other internal timemodule.c functions there. |
| 2219 | |
Martin v. Löwis | e440e47 | 2004-06-01 15:22:42 +0000 | [diff] [blame] | 2220 | - New public functions PyEval_EvaluateFrame and PyGen_New to expose |
| 2221 | generator objects. |
| 2222 | |
Thomas Heller | 1328b52 | 2004-04-22 17:23:49 +0000 | [diff] [blame] | 2223 | - New public functions Py_IncRef() and Py_DecRef(), exposing the |
| 2224 | functionality of the Py_XINCREF() and Py_XDECREF macros. Useful for |
Thomas Heller | cc10a85 | 2004-04-22 17:28:25 +0000 | [diff] [blame] | 2225 | runtime dynamic embedding of Python. See patch #938302, by Bob |
| 2226 | Ippolito. |
Thomas Heller | 1328b52 | 2004-04-22 17:23:49 +0000 | [diff] [blame] | 2227 | |
Raymond Hettinger | c1e4f9d | 2004-03-12 08:04:00 +0000 | [diff] [blame] | 2228 | - Added a new macro, PySequence_Fast_ITEMS, which retrieves a fast sequence's |
| 2229 | underlying array of PyObject pointers. Useful for high speed looping. |
| 2230 | |
Raymond Hettinger | 8f5cdaa | 2003-12-13 11:26:12 +0000 | [diff] [blame] | 2231 | - Created a new method flag, METH_COEXIST, which causes a method to be loaded |
| 2232 | even if already defined by a slot wrapper. This allows a __contains__ |
| 2233 | method, for example, to co-exist with a defined sq_contains slot. This |
| 2234 | is helpful because the PyCFunction can take advantage of optimized calls |
| 2235 | whenever METH_O or METH_NOARGS flags are defined. |
| 2236 | |
Raymond Hettinger | bc0f2ab | 2003-11-25 21:12:14 +0000 | [diff] [blame] | 2237 | - Added a new function, PyDict_Contains(d, k) which is like |
| 2238 | PySequence_Contains() but is specific to dictionaries and executes |
| 2239 | about 10% faster. |
| 2240 | |
Brett Cannon | 26b3a7b | 2003-10-19 21:31:43 +0000 | [diff] [blame] | 2241 | - Added three new macros: Py_RETURN_NONE, Py_RETURN_TRUE, and Py_RETURN_FALSE. |
| 2242 | Each return the singleton they mention after Py_INCREF()ing them. |
| 2243 | |
Raymond Hettinger | cb2da43 | 2003-10-12 18:24:34 +0000 | [diff] [blame] | 2244 | - Added a new function, PyTuple_Pack(n, ...) for constructing tuples from a |
| 2245 | variable length argument list of Python objects without having to invoke |
| 2246 | the more complex machinery of Py_BuildValue(). PyTuple_Pack(3, a, b, c) |
| 2247 | is equivalent to Py_BuildValue("(OOO)", a, b, c). |
| 2248 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2249 | Windows |
| 2250 | ------- |
| 2251 | |
Guido van Rossum | fd25aca | 2003-11-30 22:10:15 +0000 | [diff] [blame] | 2252 | - The _winreg module could segfault when reading very large registry |
| 2253 | values, due to unchecked alloca() calls (SF bug 851056). The fix is |
| 2254 | uses either PyMem_Malloc(n) or PyString_FromStringAndSize(NULL, n), |
| 2255 | as appropriate, followed by a size check. |
| 2256 | |
Tim Peters | f1827cf | 2003-09-07 03:30:18 +0000 | [diff] [blame] | 2257 | - file.truncate() could misbehave if the file was open for update |
| 2258 | (modes r+, rb+, w+, wb+), and the most recent file operation before |
| 2259 | the truncate() call was an input operation. SF bug 801631. |
| 2260 | |
Skip Montanaro | cb3988c | 2003-08-01 05:01:54 +0000 | [diff] [blame] | 2261 | |
Tim Peters | 0963803 | 2003-07-29 00:10:29 +0000 | [diff] [blame] | 2262 | What's New in Python 2.3 final? |
| 2263 | =============================== |
| 2264 | |
| 2265 | *Release date: 29-Jul-2003* |
| 2266 | |
Tim Peters | 0963803 | 2003-07-29 00:10:29 +0000 | [diff] [blame] | 2267 | IDLE |
| 2268 | ---- |
| 2269 | |
Tim Peters | 36c1afc | 2003-07-29 17:22:57 +0000 | [diff] [blame] | 2270 | - Bug 778400: IDLE hangs when selecting "Edit with IDLE" from explorer. |
| 2271 | This was unique to Windows, and was fixed by adding an -n switch to |
| 2272 | the command the Windows installer creates to execute "Edit with IDLE" |
| 2273 | context-menu actions. |
| 2274 | |
Tim Peters | 0963803 | 2003-07-29 00:10:29 +0000 | [diff] [blame] | 2275 | - IDLE displays a new message upon startup: some "personal firewall" |
| 2276 | kinds of programs (for example, ZoneAlarm) open a dialog of their |
| 2277 | own when any program opens a socket. IDLE does use sockets, talking |
| 2278 | on the computer's internal loopback interface. This connection is not |
| 2279 | visible on any external interface and no data is sent to or received |
| 2280 | from the Internet. So, if you get such a dialog when opening IDLE, |
| 2281 | asking whether to let pythonw.exe talk to address 127.0.0.1, say yes, |
| 2282 | and rest assured no communication external to your machine is taking |
| 2283 | place. If you don't allow it, IDLE won't be able to start. |
| 2284 | |
Tim Peters | 0963803 | 2003-07-29 00:10:29 +0000 | [diff] [blame] | 2285 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2286 | What's New in Python 2.3 release candidate 2? |
| 2287 | ============================================= |
| 2288 | |
Tim Peters | 6560a25 | 2003-07-24 00:15:46 +0000 | [diff] [blame] | 2289 | *Release date: 24-Jul-2003* |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2290 | |
| 2291 | Core and builtins |
| 2292 | ----------------- |
| 2293 | |
Thomas Heller | 354e3d9 | 2003-07-22 18:10:15 +0000 | [diff] [blame] | 2294 | - It is now possible to import from zipfiles containing additional |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2295 | data bytes before the zip compatible archive. Zipfiles containing a |
Thomas Heller | 354e3d9 | 2003-07-22 18:10:15 +0000 | [diff] [blame] | 2296 | comment at the end are still unsupported. |
| 2297 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2298 | Extension modules |
| 2299 | ----------------- |
| 2300 | |
| 2301 | - A longstanding bug in the parser module's initialization could cause |
| 2302 | fatal internal refcount confusion when the module got initialized more |
| 2303 | than once. This has been fixed. |
| 2304 | |
Fred Drake | 01a4312 | 2003-07-21 17:17:10 +0000 | [diff] [blame] | 2305 | - Fixed memory leak in pyexpat; using the parser's ParseFile() method |
| 2306 | with open files that aren't instances of the standard file type |
| 2307 | caused an instance of the bound .read() method to be leaked on every |
| 2308 | call. |
| 2309 | |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2310 | - Fixed some leaks in the locale module. |
| 2311 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2312 | Library |
| 2313 | ------- |
| 2314 | |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2315 | - Lib/encodings/rot_13.py when used as a script, now more properly |
| 2316 | uses the first Python interpreter on your path. |
| 2317 | |
| 2318 | - Removed caching of TimeRE (and thus LocaleTime) in _strptime.py to |
| 2319 | fix a locale related bug in the test suite. Although another patch |
| 2320 | was needed to actually fix the problem, the cache code was not |
| 2321 | restored. |
| 2322 | |
Tim Peters | c794a1c | 2003-07-27 20:23:49 +0000 | [diff] [blame] | 2323 | IDLE |
| 2324 | ---- |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2325 | |
Tim Peters | c794a1c | 2003-07-27 20:23:49 +0000 | [diff] [blame] | 2326 | - Calltips patches. |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2327 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2328 | Build |
| 2329 | ----- |
| 2330 | |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2331 | - For MacOSX, added -mno-fused-madd to BASECFLAGS to fix test_coercion |
| 2332 | on Panther (OSX 10.3). |
| 2333 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2334 | C API |
| 2335 | ----- |
| 2336 | |
| 2337 | Windows |
| 2338 | ------- |
| 2339 | |
Tim Peters | 291f14e | 2003-07-22 02:50:01 +0000 | [diff] [blame] | 2340 | - The tempfile module could do insane imports on Windows if PYTHONCASEOK |
| 2341 | was set, making temp file creation impossible. Repaired. |
| 2342 | |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2343 | - Add a patch to workaround pthread_sigmask() bugs in Cygwin. |
| 2344 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2345 | Mac |
| 2346 | --- |
| 2347 | |
Barry Warsaw | 0517c9a | 2003-07-25 01:09:40 +0000 | [diff] [blame] | 2348 | - Various fixes to pimp. |
| 2349 | |
| 2350 | - Scripts runs with pythonw no longer had full window manager access. |
| 2351 | |
| 2352 | - Don't force boot-disk-only install, for reasons unknown it causes |
| 2353 | more problems than it solves. |
| 2354 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2355 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2356 | What's New in Python 2.3 release candidate 1? |
| 2357 | ============================================= |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2358 | |
Jeremy Hylton | 0ed18c2 | 2003-07-18 20:10:02 +0000 | [diff] [blame] | 2359 | *Release date: 18-Jul-2003* |
| 2360 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2361 | Core and builtins |
| 2362 | ----------------- |
| 2363 | |
Tim Peters | e5e065b | 2003-07-06 18:36:54 +0000 | [diff] [blame] | 2364 | - The new function sys.getcheckinterval() returns the last value set |
| 2365 | by sys.setcheckinterval(). |
| 2366 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2367 | - Several bugs in the symbol table phase of the compiler have been |
| 2368 | fixed. Errors could be lost and compilation could fail without |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2369 | reporting an error. SF patch 763201. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2370 | |
| 2371 | - The interpreter is now more robust about importing the warnings |
| 2372 | module. In an executable generated by freeze or similar programs, |
| 2373 | earlier versions of 2.3 would fail if the warnings module could |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2374 | not be found on the file system. Fixes SF bug 771097. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2375 | |
| 2376 | - A warning about assignments to module attributes that shadow |
| 2377 | builtins, present in earlier releases of 2.3, has been removed. |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2378 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2379 | - It is not possible to create subclasses of builtin types like str |
| 2380 | and tuple that define an itemsize. Earlier releases of Python 2.3 |
| 2381 | allowed this by mistake, leading to crashes and other problems. |
| 2382 | |
| 2383 | - The thread_id is now initialized to 0 in a non-thread build. SF bug |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2384 | 770247. |
| 2385 | |
| 2386 | - SF bug 762891: "del p[key]" on proxy object no longer raises SystemError. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2387 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2388 | Extension modules |
| 2389 | ----------------- |
| 2390 | |
| 2391 | - weakref.proxy() can now handle "del obj[i]" for proxy objects |
| 2392 | defining __delitem__. Formerly, it generated a SystemError. |
| 2393 | |
| 2394 | - SSL no longer crashes the interpreter when the remote side disconnects. |
| 2395 | |
Andrew M. Kuchling | 6c733d3 | 2003-07-16 20:11:34 +0000 | [diff] [blame] | 2396 | - On Unix the mmap module can again be used to map device files. |
| 2397 | |
Brett Cannon | 20def8b | 2003-07-01 05:16:08 +0000 | [diff] [blame] | 2398 | - time.strptime now exclusively uses the Python implementation |
| 2399 | contained within the _strptime module. |
| 2400 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2401 | - The print slot of weakref proxy objects was removed, because it was |
| 2402 | not consistent with the object's repr slot. |
| 2403 | |
| 2404 | - The mmap module only checks file size for regular files, not |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2405 | character or block devices. SF patch 708374. |
| 2406 | |
| 2407 | - The cPickle Pickler garbage collection support was fixed to traverse |
| 2408 | the find_class attribute, if present. |
| 2409 | |
Tim Peters | 6a62725 | 2003-07-21 14:25:23 +0000 | [diff] [blame] | 2410 | - There are several fixes for the bsddb3 wrapper module. |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2411 | |
| 2412 | bsddb3 no longer crashes if an environment is closed before a cursor |
| 2413 | (SF bug 763298). |
| 2414 | |
| 2415 | The DB and DBEnv set_get_returns_none function was extended to take |
Barry Warsaw | d71a551 | 2003-07-20 18:00:54 +0000 | [diff] [blame] | 2416 | a level instead of a boolean flag. The new level 2 means that in |
| 2417 | addition, cursor.set()/.get() methods return None instead of raising |
| 2418 | an exception. |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2419 | |
| 2420 | A typo was fixed in DBCursor.join_item(), preventing a crash. |
| 2421 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2422 | Library |
| 2423 | ------- |
| 2424 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2425 | - distutils now supports MSVC 7.1 |
| 2426 | |
Raymond Hettinger | 71adf7e | 2003-07-16 19:25:22 +0000 | [diff] [blame] | 2427 | - doctest now examines all docstrings by default. Previously, it would |
| 2428 | skip over functions with private names (as indicated by the underscore |
| 2429 | naming convention). The old default created too much of a risk that |
| 2430 | user tests were being skipped inadvertently. Note, this change could |
| 2431 | break code in the unlikely case that someone had intentionally put |
| 2432 | failing tests in the docstrings of private functions. The breakage |
| 2433 | is easily fixable by specifying the old behavior when calling testmod() |
| 2434 | or Tester(). |
| 2435 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2436 | - There were several fixes to the way dumbdbms are closed. It's vital |
| 2437 | that a dumbdbm database be closed properly, else the on-disk data |
| 2438 | and directory files can be left in mutually inconsistent states. |
| 2439 | dumbdbm.py's _Database.__del__() method attempted to close the |
| 2440 | database properly, but a shutdown race in _Database._commit() could |
| 2441 | prevent this from working, so that a program trusting __del__() to |
| 2442 | get the on-disk files in synch could be badly surprised. The race |
| 2443 | has been repaired. A sync() method was also added so that shelve |
| 2444 | can guarantee data is written to disk. |
Tim Peters | 7a6c733 | 2003-07-13 17:21:10 +0000 | [diff] [blame] | 2445 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2446 | The close() method can now be called more than once without complaint. |
Tim Peters | d7472ec | 2003-07-13 02:22:03 +0000 | [diff] [blame] | 2447 | |
Tim Peters | 59aba12 | 2003-07-01 20:01:55 +0000 | [diff] [blame] | 2448 | - The classes in threading.py are now new-style classes. That they |
| 2449 | weren't before was an oversight. |
| 2450 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2451 | - The urllib2 digest authentication handlers now define the correct |
| 2452 | auth_header. The earlier versions would fail at runtime. |
| 2453 | |
Neal Norwitz | e7dfe21 | 2003-07-01 14:59:46 +0000 | [diff] [blame] | 2454 | - SF bug 763023: fix uncaught ZeroDivisionError in difflib ratio methods |
| 2455 | when there are no lines. |
| 2456 | |
Neal Norwitz | 3c0f2c9 | 2003-07-01 21:12:47 +0000 | [diff] [blame] | 2457 | - SF bug 763637: fix exception in Tkinter with after_cancel |
| 2458 | which could occur with Tk 8.4 |
| 2459 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2460 | - SF bug 770601: CGIHTTPServer.py now passes the entire environment |
| 2461 | to child processes. |
| 2462 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2463 | - SF bug 765238: add filter to fnmatch's __all__. |
| 2464 | |
| 2465 | - SF bug 748201: make time.strptime() error messages more helpful. |
| 2466 | |
| 2467 | - SF patch 764470: Do not dump the args attribute of a Fault object in |
| 2468 | xmlrpclib. |
| 2469 | |
| 2470 | - SF patch 549151: urllib and urllib2 now redirect POSTs on 301 |
| 2471 | responses. |
| 2472 | |
| 2473 | - SF patch 766650: The whichdb module was fixed to recognize dbm files |
| 2474 | generated by gdbm on OS/2 EMX. |
| 2475 | |
| 2476 | - SF bugs 763047 and 763052: fixes bug of timezone value being left as |
| 2477 | -1 when ``time.tzname[0] == time.tzname[1] and not time.daylight`` |
| 2478 | is true when it should only when time.daylight is true. |
| 2479 | |
| 2480 | - SF bug 764548: re now allows subclasses of str and unicode to be |
| 2481 | used as patterns. |
| 2482 | |
| 2483 | - SF bug 763637: In Tkinter, change after_cancel() to handle tuples |
| 2484 | of varying sizes. Tk 8.4 returns a different number of values |
| 2485 | than Tk 8.3. |
| 2486 | |
| 2487 | - SF bug 763023: difflib.ratio() did not catch zero division. |
| 2488 | |
| 2489 | - The Queue module now has an __all__ attribute. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2490 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2491 | Tools/Demos |
| 2492 | ----------- |
| 2493 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2494 | - See Lib/idlelib/NEWS.txt for IDLE news. |
| 2495 | |
Neal Norwitz | 592c4cc | 2003-07-01 04:14:28 +0000 | [diff] [blame] | 2496 | - SF bug 753592: webchecker/wsgui now handles user supplied directories. |
| 2497 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2498 | - The trace.py script has been removed. It is now in the standard library. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2499 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2500 | Build |
| 2501 | ----- |
| 2502 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2503 | - Python now compiles with -fno-strict-aliasing if possible (SF bug 766696). |
| 2504 | |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2505 | - The socket module compiles on IRIX 6.5.10. |
| 2506 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2507 | - An irix64 system is treated the same way as an irix6 system (SF |
| 2508 | patch 764560). |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2509 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2510 | - Several definitions were missing on FreeBSD 5.x unless the |
| 2511 | __BSD_VISIBLE symbol was defined. configure now defines it as |
| 2512 | needed. |
Jeremy Hylton | ca9e21c | 2003-07-17 17:57:58 +0000 | [diff] [blame] | 2513 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2514 | C API |
| 2515 | ----- |
| 2516 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2517 | - Unicode objects now support mbcs as a built-in encoding, so the C |
| 2518 | API can use it without deferring to the encodings package. |
| 2519 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2520 | Windows |
| 2521 | ------- |
| 2522 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2523 | - The Windows implementation of PyThread_start_new_thread() never |
| 2524 | checked error returns from Windows functions correctly. As a result, |
| 2525 | it could claim to start a new thread even when the Microsoft |
| 2526 | _beginthread() function failed (due to "too many threads" -- this is |
| 2527 | on the order of thousands when it happens). In these cases, the |
| 2528 | Python exception :: |
| 2529 | |
| 2530 | thread.error: can't start new thread |
| 2531 | |
| 2532 | is raised now. |
| 2533 | |
| 2534 | - SF bug 766669: Prevent a GPF on interpreter exit when sockets are in |
| 2535 | use. The interpreter now calls WSACleanup() from Py_Finalize() |
| 2536 | instead of from DLL teardown. |
| 2537 | |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2538 | Mac |
| 2539 | --- |
| 2540 | |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2541 | - Bundlebuilder now inherits default values in the right way. It was |
Walter Dörwald | 73a8a4b | 2003-07-30 12:14:02 +0000 | [diff] [blame] | 2542 | previously possible for app bundles to get a type of "BNDL" instead |
Jeremy Hylton | 8aca417 | 2003-07-17 19:19:05 +0000 | [diff] [blame] | 2543 | of "APPL." Other improvements include, a --build-id option to |
| 2544 | specify the CFBundleIdentifier and using the --python option to set |
| 2545 | the executable in the bundle. |
| 2546 | |
| 2547 | - Fixed two bugs in MacOSX framework handling. |
Raymond Hettinger | d693a81 | 2003-06-30 04:18:48 +0000 | [diff] [blame] | 2548 | |
Jack Jansen | e004041 | 2003-07-23 22:17:28 +0000 | [diff] [blame] | 2549 | - pythonw did not allow user interaction in 2.3rc1, this has been fixed. |
| 2550 | |
| 2551 | - Python is now compiled with -mno-fused-madd, making all tests pass |
| 2552 | on Panther. |
| 2553 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2554 | What's New in Python 2.3 beta 2? |
| 2555 | ================================ |
| 2556 | |
Tim Peters | 2740944 | 2003-06-29 16:18:08 +0000 | [diff] [blame] | 2557 | *Release date: 29-Jun-2003* |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2558 | |
| 2559 | Core and builtins |
| 2560 | ----------------- |
| 2561 | |
Barry Warsaw | 883f223 | 2003-06-29 17:10:11 +0000 | [diff] [blame] | 2562 | - A program can now set the environment variable PYTHONINSPECT to some |
| 2563 | string value in Python, and cause the interpreter to enter the |
| 2564 | interactive prompt at program exit, as if Python had been invoked |
| 2565 | with the -i option. |
| 2566 | |
Raymond Hettinger | d05abde | 2003-06-17 05:05:49 +0000 | [diff] [blame] | 2567 | - list.index() now accepts optional start and stop arguments. Similar |
| 2568 | changes were made to UserList.index(). SF feature request 754014. |
| 2569 | |
Guido van Rossum | ce74f8a | 2003-06-13 20:37:23 +0000 | [diff] [blame] | 2570 | - SF patch 751998 fixes an unwanted side effect of the previous fix |
| 2571 | for SF bug 742860 (the next item). |
| 2572 | |
Tim Peters | 50d8b8b | 2003-05-25 17:44:31 +0000 | [diff] [blame] | 2573 | - SF bug 742860: "WeakKeyDictionary __delitem__ uses iterkeys". This |
| 2574 | wasn't threadsafe, was very inefficient (expected time O(len(dict)) |
| 2575 | instead of O(1)), and could raise a spurious RuntimeError if another |
| 2576 | thread mutated the dict during __delitem__, or if a comparison function |
| 2577 | mutated it. It also neglected to raise KeyError when the key wasn't |
| 2578 | present; didn't raise TypeError when the key wasn't of a weakly |
| 2579 | referencable type; and broke various more-or-less obscure dict |
| 2580 | invariants by using a sequence of equality comparisons over the whole |
| 2581 | set of dict keys instead of computing the key's hash code to narrow |
| 2582 | the search to those keys with the same hash code. All of these are |
| 2583 | considered to be bugs. A new implementation of __delitem__ repairs all |
| 2584 | that, but note that fixing these bugs may change visible behavior in |
| 2585 | code relying (whether intentionally or accidentally) on old behavior. |
Tim Peters | 886128f | 2003-05-25 01:45:11 +0000 | [diff] [blame] | 2586 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2587 | - SF bug 734869: Fixed a compiler bug that caused a fatal error when |
| 2588 | compiling a list comprehension that contained another list comprehension |
| 2589 | embedded in a lambda expression. |
| 2590 | |
Tim Peters | e87568d | 2003-05-24 20:18:24 +0000 | [diff] [blame] | 2591 | - SF bug 705231: builtin pow() no longer lets the platform C pow() |
| 2592 | raise -1.0 to integer powers, because (at least) glibc gets it wrong |
| 2593 | in some cases. The result should be -1.0 if the power is odd and 1.0 |
| 2594 | if the power is even, and any float with a sufficiently large exponent |
| 2595 | is (mathematically) an exact even integer. |
| 2596 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2597 | - SF bug 759227: A new-style class that implements __nonzero__() must |
| 2598 | return a bool or int (but not an int subclass) from that method. This |
| 2599 | matches the restriction on classic classes. |
| 2600 | |
Martin v. Löwis | 5467d4c | 2003-05-10 07:10:12 +0000 | [diff] [blame] | 2601 | - The encoding attribute has been added for file objects, and set to |
| 2602 | the terminal encoding on Unix and Windows. |
| 2603 | |
Tim Peters | 015dd82 | 2003-05-04 04:16:52 +0000 | [diff] [blame] | 2604 | - The softspace attribute of file objects became read-only by oversight. |
| 2605 | It's writable again. |
| 2606 | |
Raymond Hettinger | 686b14d | 2003-05-07 01:28:47 +0000 | [diff] [blame] | 2607 | - Reverted a 2.3 beta 1 change to iterators for subclasses of list and |
| 2608 | tuple. By default, the iterators now access data elements directly |
| 2609 | instead of going through __getitem__. If __getitem__ access is |
Andrew M. Kuchling | 6c733d3 | 2003-07-16 20:11:34 +0000 | [diff] [blame] | 2610 | preferred, then __iter__ can be overridden. |
Raymond Hettinger | 686b14d | 2003-05-07 01:28:47 +0000 | [diff] [blame] | 2611 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2612 | - SF bug 735247: The staticmethod and super types participate in |
| 2613 | garbage collection. Before this change, it was possible for leaks to |
| 2614 | occur in functions with non-global free variables that used these types. |
| 2615 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2616 | Extension modules |
| 2617 | ----------------- |
| 2618 | |
Raymond Hettinger | 643bcec | 2003-06-29 03:29:42 +0000 | [diff] [blame] | 2619 | - the socket module has a new exception, socket.timeout, to allow |
| 2620 | timeouts to be handled separately from other socket errors. |
| 2621 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2622 | - SF bug 751276: cPickle has fixed to propagate exceptions raised in |
| 2623 | user code. In earlier versions, cPickle caught and ignored any |
| 2624 | exception when it performed operations that it expected to raise |
| 2625 | specific exceptions like AttributeError. |
| 2626 | |
| 2627 | - cPickle Pickler and Unpickler objects now participate in garbage |
| 2628 | collection. |
| 2629 | |
Tim Peters | cda32b7 | 2003-06-15 23:13:35 +0000 | [diff] [blame] | 2630 | - mimetools.choose_boundary() could return duplicate strings at times, |
| 2631 | especially likely on Windows. The strings returned are now guaranteed |
| 2632 | unique within a single program run. |
| 2633 | |
Brett Cannon | 4e64d78 | 2003-06-13 23:44:35 +0000 | [diff] [blame] | 2634 | - thread.interrupt_main() raises KeyboardInterrupt in the main thread. |
| 2635 | dummy_thread has also been modified to try to simulate the behavior. |
| 2636 | |
Walter Dörwald | 9e46abe | 2003-05-18 03:15:10 +0000 | [diff] [blame] | 2637 | - array.array.insert() now treats negative indices as being relative |
| 2638 | to the end of the array, just like list.insert() does. (SF bug #739313) |
| 2639 | |
Tim Peters | b0c854d | 2003-05-17 15:57:00 +0000 | [diff] [blame] | 2640 | - The datetime module classes datetime, time, and timedelta are now |
| 2641 | properly subclassable. |
Tim Peters | a98924a | 2003-05-17 05:55:19 +0000 | [diff] [blame] | 2642 | |
Martin v. Löwis | 28e9ce9 | 2003-05-09 08:19:48 +0000 | [diff] [blame] | 2643 | - _tkinter.{get|set}busywaitinterval was added. |
| 2644 | |
Raymond Hettinger | 834f463 | 2003-05-02 20:24:56 +0000 | [diff] [blame] | 2645 | - itertools.islice() now accepts stop=None as documented. |
| 2646 | Fixes SF bug #730685. |
| 2647 | |
Skip Montanaro | 8c044d8 | 2003-05-06 20:42:37 +0000 | [diff] [blame] | 2648 | - the bsddb185 module is built in one restricted instance - |
| 2649 | /usr/include/db.h exists and defines HASHVERSION to be 2. This is true |
| 2650 | for many BSD-derived systems. |
| 2651 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2652 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2653 | Library |
| 2654 | ------- |
| 2655 | |
Tim Peters | db3756d | 2003-06-29 05:30:48 +0000 | [diff] [blame] | 2656 | - Some happy doctest extensions from Jim Fulton have been added to |
| 2657 | doctest.py. These are already being used in Zope3. The two |
| 2658 | primary ones: |
| 2659 | |
| 2660 | doctest.debug(module, name) extracts the doctests from the named object |
| 2661 | in the given module, puts them in a temp file, and starts pdb running |
| 2662 | on that file. This is great when a doctest fails. |
| 2663 | |
| 2664 | doctest.DocTestSuite(module=None) returns a synthesized unittest |
| 2665 | TestSuite instance, to be run by the unittest framework, which |
| 2666 | runs all the doctests in the module. This allows writing tests in |
| 2667 | doctest style (which can be clearer and shorter than writing tests |
| 2668 | in unittest style), without losing unittest's powerful testing |
| 2669 | framework features (which doctest lacks). |
| 2670 | |
Tim Peters | 6ebe61f | 2003-06-27 20:48:05 +0000 | [diff] [blame] | 2671 | - For compatibility with doctests created before 2.3, if an expected |
| 2672 | output block consists solely of "1" and the actual output block |
| 2673 | consists solely of "True", it's accepted as a match; similarly |
| 2674 | for "0" and "False". This is quite un-doctest-like, but is practical. |
| 2675 | The behavior can be disabled by passing the new doctest module |
| 2676 | constant DONT_ACCEPT_TRUE_FOR_1 to the new optionflags optional |
| 2677 | argument. |
| 2678 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2679 | - ZipFile.testzip() now only traps BadZipfile exceptions. Previously, |
| 2680 | a bare except caught to much and reported all errors as a problem |
| 2681 | in the archive. |
| 2682 | |
| 2683 | - The logging module now has a new function, makeLogRecord() making |
| 2684 | LogHandler easier to interact with DatagramHandler and SocketHandler. |
| 2685 | |
Skip Montanaro | 364ca40 | 2003-06-17 12:58:31 +0000 | [diff] [blame] | 2686 | - The cgitb module has been extended to support plain text display (SF patch |
| 2687 | 569574). |
| 2688 | |
Guido van Rossum | ce74f8a | 2003-06-13 20:37:23 +0000 | [diff] [blame] | 2689 | - A brand new version of IDLE (from the IDLEfork project at |
| 2690 | SourceForge) is now included as Lib/idlelib. The old Tools/idle is |
| 2691 | no more. |
| 2692 | |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2693 | - Added a new module: trace (documentation missing). This module used |
| 2694 | to be distributed in Tools/scripts. It uses sys.settrace() to trace |
| 2695 | code execution -- either function calls or individual lines. It can |
| 2696 | generate tracing output during execution or a post-mortem report of |
| 2697 | code coverage. |
| 2698 | |
Jeremy Hylton | e0c3112 | 2003-06-16 20:38:15 +0000 | [diff] [blame] | 2699 | - The threading module has new functions settrace() and setprofile() |
| 2700 | that cooperate with the functions of the same name in the sys |
| 2701 | module. A function registered with the threading module will |
Jeremy Hylton | b752c27 | 2003-06-29 17:25:39 +0000 | [diff] [blame] | 2702 | be used for all threads it creates. The new trace module uses this |
| 2703 | to provide tracing for code running in threads. |
Jeremy Hylton | e0c3112 | 2003-06-16 20:38:15 +0000 | [diff] [blame] | 2704 | |
Guido van Rossum | 99d2c25 | 2003-06-13 19:28:47 +0000 | [diff] [blame] | 2705 | - copy.py: applied SF patch 707900, fixing bug 702858, by Steven |
| 2706 | Taschuk. Copying a new-style class that had a reference to itself |
| 2707 | didn't work. (The same thing worked fine for old-style classes.) |
Martin v. Löwis | ba8f5ff | 2003-06-14 07:10:06 +0000 | [diff] [blame] | 2708 | Builtin functions are now treated as atomic, fixing bug #746304. |
Guido van Rossum | 99d2c25 | 2003-06-13 19:28:47 +0000 | [diff] [blame] | 2709 | |
Raymond Hettinger | c24d767 | 2003-06-08 19:42:33 +0000 | [diff] [blame] | 2710 | - difflib.py has two new functions: context_diff() and unified_diff(). |
| 2711 | |
Guido van Rossum | fa19f7c | 2003-05-16 01:46:51 +0000 | [diff] [blame] | 2712 | - More fixes to urllib (SF 549151): (a) When redirecting, always use |
| 2713 | GET. This is common practice and more-or-less sanctioned by the |
| 2714 | HTTP standard. (b) Add a handler for 307 redirection, which becomes |
| 2715 | an error for POST, but a regular redirect for GET and HEAD |
| 2716 | |
Guido van Rossum | bf1bef8 | 2003-05-13 18:01:19 +0000 | [diff] [blame] | 2717 | - Added optional 'onerror' argument to os.walk(), to control error |
| 2718 | handling. |
| 2719 | |
Martin v. Löwis | e59e2ba | 2003-05-03 09:09:02 +0000 | [diff] [blame] | 2720 | - inspect.is{method|data}descriptor was added, to allow pydoc display |
| 2721 | __doc__ of data descriptors. |
| 2722 | |
Skip Montanaro | 4a7751c | 2003-04-29 21:07:16 +0000 | [diff] [blame] | 2723 | - Fixed socket speed loss caused by use of the _socketobject wrapper class |
| 2724 | in socket.py. |
| 2725 | |
Raymond Hettinger | 22952a3 | 2003-05-20 04:59:56 +0000 | [diff] [blame] | 2726 | - timeit.py now checks the current directory for imports. |
| 2727 | |
Gustavo Niemeyer | 9556fba | 2003-06-07 17:53:08 +0000 | [diff] [blame] | 2728 | - urllib2.py now knows how to order proxy classes, so the user doesn't |
| 2729 | have to insert it in front of other classes, nor do dirty tricks like |
| 2730 | inserting a "dummy" HTTPHandler after a ProxyHandler when building an |
| 2731 | opener with proxy support. |
| 2732 | |
Raymond Hettinger | 562a855 | 2003-06-30 03:35:06 +0000 | [diff] [blame] | 2733 | - Iterators have been added for dbm keys. |
| 2734 | |
| 2735 | - random.Random objects can now be pickled. |
| 2736 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2737 | Tools/Demos |
| 2738 | ----------- |
| 2739 | |
Martin v. Löwis | b8c084e | 2003-06-14 09:03:46 +0000 | [diff] [blame] | 2740 | - pydoc now offers help on keywords and topics. |
| 2741 | |
Guido van Rossum | ce74f8a | 2003-06-13 20:37:23 +0000 | [diff] [blame] | 2742 | - Tools/idle is gone; long live Lib/idlelib. |
| 2743 | |
Tim Peters | 2740944 | 2003-06-29 16:18:08 +0000 | [diff] [blame] | 2744 | - diff.py prints file diffs in context, unified, or ndiff formats, |
| 2745 | providing a command line interface to difflib.py. |
Raymond Hettinger | 2f3c74a | 2003-06-08 23:10:15 +0000 | [diff] [blame] | 2746 | |
Raymond Hettinger | 71e0033 | 2003-05-10 03:30:13 +0000 | [diff] [blame] | 2747 | - texcheck.py is a new script for making a rough validation of Python LaTeX |
| 2748 | files. |
| 2749 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2750 | Build |
| 2751 | ----- |
| 2752 | |
Andrew M. Kuchling | 6c733d3 | 2003-07-16 20:11:34 +0000 | [diff] [blame] | 2753 | - Setting DESTDIR during 'make install' now allows specifying a |
Martin v. Löwis | 3b8ee08 | 2003-05-11 20:25:35 +0000 | [diff] [blame] | 2754 | different root directory. |
| 2755 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2756 | C API |
| 2757 | ----- |
| 2758 | |
Tim Peters | 3cfe754 | 2003-05-21 21:29:48 +0000 | [diff] [blame] | 2759 | - PyType_Ready(): If a type declares that it participates in gc |
| 2760 | (Py_TPFLAGS_HAVE_GC), and its base class does not, and its base class's |
| 2761 | tp_free slot is the default _PyObject_Del, and type does not define |
| 2762 | a tp_free slot itself, _PyObject_GC_Del is assigned to type->tp_free. |
| 2763 | Previously _PyObject_Del was inherited, which could at best lead to a |
| 2764 | segfault. In addition, if even after this magic the type's tp_free |
| 2765 | slot is _PyObject_Del or NULL, and the type is a base type |
| 2766 | (Py_TPFLAGS_BASETYPE), TypeError is raised: since the type is a base |
| 2767 | type, its dealloc function must call type->tp_free, and since the type |
| 2768 | is gc'able, tp_free must not be NULL or _PyObject_Del. |
| 2769 | |
Raymond Hettinger | 562a855 | 2003-06-30 03:35:06 +0000 | [diff] [blame] | 2770 | - PyThreadState_SetAsyncExc(): A new API (deliberately accessible only |
| 2771 | from C) to interrupt a thread by sending it an exception. It is |
| 2772 | intentional that you have to write your own C extension to call it |
| 2773 | from Python. |
| 2774 | |
| 2775 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2776 | New platforms |
| 2777 | ------------- |
| 2778 | |
| 2779 | None this time. |
| 2780 | |
| 2781 | Tests |
| 2782 | ----- |
| 2783 | |
| 2784 | - test_imp rewritten so that it doesn't raise RuntimeError if run as a |
| 2785 | side effect of being imported ("import test.autotest"). |
| 2786 | |
| 2787 | Windows |
| 2788 | ------- |
| 2789 | |
Tim Peters | faa697a | 2003-06-22 01:42:20 +0000 | [diff] [blame] | 2790 | - The Windows installer ships with Tcl/Tk 8.4.3 (upgraded from 8.4.1). |
| 2791 | |
Tim Peters | c4607da | 2003-05-08 18:13:59 +0000 | [diff] [blame] | 2792 | - The installer always suggested that Python be installed on the C: |
| 2793 | drive, due to a hardcoded "C:" generated by the Wise installation |
| 2794 | wizard. People with machines where C: is not the system drive |
| 2795 | usually want Python installed on whichever drive is their system drive |
| 2796 | instead. We removed the hardcoded "C:", and two testers on machines |
| 2797 | where C: is not the system drive report that the installer now |
| 2798 | suggests their system drive. Note that you can always select the |
| 2799 | directory you want in the "Select Destination Directory" dialog -- |
| 2800 | that's what it's for. |
| 2801 | |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2802 | Mac |
| 2803 | --- |
| 2804 | |
Just van Rossum | 99bc1fc | 2003-05-09 15:01:25 +0000 | [diff] [blame] | 2805 | - There's a new module called "autoGIL", which offers a mechanism to |
| 2806 | automatically release the Global Interpreter Lock when an event loop |
| 2807 | goes to sleep, allowing other threads to run. It's currently only |
| 2808 | supported on OSX, in the Mach-O version. |
Jack Jansen | f5e23ff | 2003-06-16 13:53:40 +0000 | [diff] [blame] | 2809 | - The OSA modules now allow direct access to properties of the |
| 2810 | toplevel application class (in AppleScript terminology). |
| 2811 | - The Package Manager can now update itself. |
Tim Peters | 4931130 | 2003-04-26 14:53:01 +0000 | [diff] [blame] | 2812 | |
Raymond Hettinger | 562a855 | 2003-06-30 03:35:06 +0000 | [diff] [blame] | 2813 | SourceForge Bugs and Patches Applied |
| 2814 | ------------------------------------ |
| 2815 | |
| 2816 | 430160, 471893, 501716, 542562, 549151, 569574, 595837, 596434, |
| 2817 | 598163, 604210, 604716, 610332, 612627, 614770, 620190, 621891, |
| 2818 | 622042, 639139, 640236, 644345, 649742, 649742, 658233, 660022, |
| 2819 | 661318, 661676, 662807, 662923, 666219, 672855, 678325, 682347, |
| 2820 | 683486, 684981, 685773, 686254, 692776, 692959, 693094, 696777, |
| 2821 | 697989, 700827, 703666, 708495, 708604, 708901, 710733, 711902, |
| 2822 | 713722, 715782, 718286, 719359, 719367, 723136, 723831, 723962, |
| 2823 | 724588, 724767, 724767, 725942, 726150, 726446, 726869, 727051, |
| 2824 | 727719, 727719, 727805, 728277, 728563, 728656, 729096, 729103, |
| 2825 | 729293, 729297, 729300, 729317, 729395, 729622, 729817, 730170, |
| 2826 | 730296, 730594, 730685, 730826, 730963, 731209, 731403, 731504, |
| 2827 | 731514, 731626, 731635, 731643, 731644, 731644, 731689, 732124, |
| 2828 | 732143, 732234, 732284, 732284, 732479, 732761, 732783, 732951, |
| 2829 | 733667, 733781, 734118, 734231, 734869, 735051, 735293, 735527, |
| 2830 | 735613, 735694, 736962, 736962, 737970, 738066, 739313, 740055, |
| 2831 | 740234, 740301, 741806, 742126, 742741, 742860, 742860, 742911, |
| 2832 | 744041, 744104, 744238, 744687, 744877, 745055, 745478, 745525, |
| 2833 | 745620, 746012, 746304, 746366, 746801, 746953, 747348, 747667, |
| 2834 | 747954, 748846, 748849, 748973, 748975, 749191, 749210, 749759, |
| 2835 | 749831, 749911, 750008, 750092, 750542, 750595, 751038, 751107, |
| 2836 | 751276, 751451, 751916, 751941, 751956, 751998, 752671, 753451, |
| 2837 | 753602, 753617, 753845, 753925, 754014, 754340, 754447, 755031, |
| 2838 | 755087, 755147, 755245, 755683, 755987, 756032, 756996, 757058, |
| 2839 | 757229, 757818, 757821, 757822, 758112, 758910, 759227, 759889, |
| 2840 | 760257, 760703, 760792, 761104, 761337, 761519, 761830, 762455 |
| 2841 | |
| 2842 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2843 | What's New in Python 2.3 beta 1? |
| 2844 | ================================ |
| 2845 | |
Guido van Rossum | fa1eddf | 2003-04-25 19:19:52 +0000 | [diff] [blame] | 2846 | *Release date: 25-Apr-2003* |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2847 | |
| 2848 | Core and builtins |
| 2849 | ----------------- |
| 2850 | |
Thomas Heller | 5eccabc | 2003-04-23 19:35:25 +0000 | [diff] [blame] | 2851 | - New format codes B, H, I, k and K have been implemented for |
| 2852 | PyArg_ParseTuple and PyBuild_Value. |
| 2853 | |
Alex Martelli | a70b191 | 2003-04-22 08:12:33 +0000 | [diff] [blame] | 2854 | - New builtin function sum(seq, start=0) returns the sum of all the |
| 2855 | items in iterable object seq, plus start (items are normally numbers, |
| 2856 | and cannot be strings). |
| 2857 | |
Guido van Rossum | aa86e35 | 2003-04-19 18:15:10 +0000 | [diff] [blame] | 2858 | - bool() called without arguments now returns False rather than |
| 2859 | raising an exception. This is consistent with calling the |
| 2860 | constructors for the other builtin types -- called without argument |
| 2861 | they all return the false value of that type. (SF patch #724135) |
| 2862 | |
Guido van Rossum | cf8d285 | 2003-04-17 16:53:26 +0000 | [diff] [blame] | 2863 | - In support of PEP 269 (making the pgen parser generator accessible |
| 2864 | from Python), some changes to the pgen code structure were made; a |
| 2865 | few files that used to be linked only with pgen are now linked with |
| 2866 | Python itself. |
| 2867 | |
Guido van Rossum | c1f6e8c | 2003-04-16 21:13:23 +0000 | [diff] [blame] | 2868 | - The repr() of a weakref object now shows the __name__ attribute of |
| 2869 | the referenced object, if it has one. |
| 2870 | |
Guido van Rossum | 76ba09f | 2003-04-16 19:40:58 +0000 | [diff] [blame] | 2871 | - super() no longer ignores data descriptors, except __class__. See |
| 2872 | the thread started at |
| 2873 | http://mail.python.org/pipermail/python-dev/2003-April/034338.html |
| 2874 | |
Guido van Rossum | 3a3cca5 | 2003-04-14 20:58:14 +0000 | [diff] [blame] | 2875 | - list.insert(i, x) now interprets negative i as it would be |
| 2876 | interpreted by slicing, so negative values count from the end of the |
| 2877 | list. This was the only place where such an interpretation was not |
| 2878 | placed on a list index. |
| 2879 | |
Guido van Rossum | efbbb1c | 2003-04-11 18:43:06 +0000 | [diff] [blame] | 2880 | - range() now works even if the arguments are longs with magnitude |
| 2881 | larger than sys.maxint, as long as the total length of the sequence |
| 2882 | fits. E.g., range(2**100, 2**101, 2**100) is the following list: |
| 2883 | [1267650600228229401496703205376L]. (SF patch #707427.) |
| 2884 | |
Tim Peters | f6b8045 | 2003-04-07 19:21:15 +0000 | [diff] [blame] | 2885 | - Some horridly obscure problems were fixed involving interaction |
| 2886 | between garbage collection and old-style classes with "ambitious" |
| 2887 | getattr hooks. If an old-style instance didn't have a __del__ method, |
| 2888 | but did have a __getattr__ hook, and the instance became reachable |
| 2889 | only from an unreachable cycle, and the hook resurrected or deleted |
| 2890 | unreachable objects when asked to resolve "__del__", anything up to |
| 2891 | a segfault could happen. That's been repaired. |
| 2892 | |
Raymond Hettinger | a3e1e4c | 2003-03-06 23:54:28 +0000 | [diff] [blame] | 2893 | - dict.pop now takes an optional argument specifying a default |
| 2894 | value to return if the key is not in the dict. If a default is not |
| 2895 | given and the key is not found, a KeyError will still be raised. |
| 2896 | Parallel changes were made to UserDict.UserDict and UserDict.DictMixin. |
| 2897 | [SF patch #693753] (contributed by Michael Stone.) |
| 2898 | |
Martin v. Löwis | 73d538b | 2003-03-05 15:13:47 +0000 | [diff] [blame] | 2899 | - sys.getfilesystemencoding() was added to expose |
| 2900 | Py_FileSystemDefaultEncoding. |
Guido van Rossum | 46d3dc3 | 2003-03-01 03:20:41 +0000 | [diff] [blame] | 2901 | |
| 2902 | - New function sys.exc_clear() clears the current exception. This is |
| 2903 | rarely needed, but can sometimes be useful to release objects |
| 2904 | referenced by the traceback held in sys.exc_info()[2]. (SF patch |
| 2905 | #693195.) |
| 2906 | |
Neal Norwitz | d5a65a7 | 2003-02-23 23:11:41 +0000 | [diff] [blame] | 2907 | - On 64-bit systems, a dictionary could contain duplicate long/int keys |
| 2908 | if the key value was larger than 2**32. See SF bug #689659. |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2909 | |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 2910 | - Fixed SF bug #663074. The codec system was using global static |
Walter Dörwald | fa86bf5 | 2003-03-31 16:15:13 +0000 | [diff] [blame] | 2911 | variables to store internal data. As a result, any attempts to use the |
Gustavo Niemeyer | 5ddd4c3 | 2003-03-19 00:35:36 +0000 | [diff] [blame] | 2912 | unicode system with multiple active interpreters, or successive |
| 2913 | interpreter executions, would fail. |
| 2914 | |
Walter Dörwald | 43440a6 | 2003-03-31 18:07:50 +0000 | [diff] [blame] | 2915 | - "%c" % u"a" now returns a unicode string instead of raising a |
Walter Dörwald | 44f527f | 2003-04-02 16:37:24 +0000 | [diff] [blame] | 2916 | TypeError. u"%c" % 0xffffffff now raises a OverflowError instead |
Walter Dörwald | 1e469c5 | 2003-04-02 16:57:59 +0000 | [diff] [blame] | 2917 | of a ValueError to be consistent with "%c" % 256. See SF patch #710127. |
Walter Dörwald | 43440a6 | 2003-03-31 18:07:50 +0000 | [diff] [blame] | 2918 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2919 | Extension modules |
| 2920 | ----------------- |
| 2921 | |
Guido van Rossum | e7adda9 | 2003-04-25 05:52:37 +0000 | [diff] [blame] | 2922 | - The socket module now provides the functions inet_pton and inet_ntop |
| 2923 | for converting between string and packed representation of IP |
| 2924 | addresses. There is also a new module variable, has_ipv6, which is |
| 2925 | True iff the current Python has IPv6 support. See SF patch #658327. |
| 2926 | |
Martin v. Löwis | bfe175c | 2003-04-16 19:42:51 +0000 | [diff] [blame] | 2927 | - Tkinter wrappers around Tcl variables now pass objects directly |
| 2928 | to Tcl, instead of first converting them to strings. |
| 2929 | |
Guido van Rossum | 41c99e7 | 2003-04-14 17:59:34 +0000 | [diff] [blame] | 2930 | - The .*? pattern in the re module is now special-cased to avoid the |
| 2931 | recursion limit. (SF patch #720991 -- many thanks to Gary Herron |
| 2932 | and Greg Chapman.) |
| 2933 | |
Guido van Rossum | a12fe4e | 2003-04-09 19:06:21 +0000 | [diff] [blame] | 2934 | - New function sys.call_tracing() allows pdb to debug code |
| 2935 | recursively. |
| 2936 | |
Tim Peters | 730f553 | 2003-04-08 17:17:17 +0000 | [diff] [blame] | 2937 | - New function gc.get_referents(obj) returns a list of objects |
Tim Peters | 0f81ab6 | 2003-04-08 16:39:48 +0000 | [diff] [blame] | 2938 | directly referenced by obj. In effect, it exposes what the object's |
| 2939 | tp_traverse slot does, and can be helpful when debugging memory |
| 2940 | leaks. |
| 2941 | |
Martin v. Löwis | 7fb697b | 2003-04-03 04:49:12 +0000 | [diff] [blame] | 2942 | - The iconv module has been removed from this release. |
| 2943 | |
Tim Peters | d50ade6 | 2003-03-20 18:32:13 +0000 | [diff] [blame] | 2944 | - The platform-independent routines for packing floats in IEEE formats |
| 2945 | (struct.pack's <f, >f, <d, and >d codes; pickle and cPickle's protocol 1 |
| 2946 | pickling of floats) ignored that rounding can cause a carry to |
| 2947 | propagate. The worst consequence was that, in rare cases, <f and >f |
| 2948 | could produce strings that, when unpacked again, were a factor of 2 |
| 2949 | away from the original float. This has been fixed. See SF bug |
| 2950 | #705836. |
| 2951 | |
Andrew M. Kuchling | 6c733d3 | 2003-07-16 20:11:34 +0000 | [diff] [blame] | 2952 | - New function time.tzset() provides access to the C library tzset() |
Guido van Rossum | d11b62e | 2003-03-14 21:51:36 +0000 | [diff] [blame] | 2953 | function, if supported. (SF patch #675422.) |
| 2954 | |
Neal Norwitz | 12e2217 | 2003-03-03 21:16:39 +0000 | [diff] [blame] | 2955 | - Using createfilehandler, deletefilehandler, createtimerhandler functions |
| 2956 | on Tkinter.tkinter (_tkinter module) no longer crashes the interpreter. |
| 2957 | See SF bug #692416. |
| 2958 | |
Michael W. Hudson | f008998 | 2003-03-03 12:29:42 +0000 | [diff] [blame] | 2959 | - Modified the fcntl.ioctl() function to allow modification of a passed |
| 2960 | mutable buffer (for details see the reference documentation). |
| 2961 | |
Raymond Hettinger | 61fe64d | 2003-02-23 04:40:07 +0000 | [diff] [blame] | 2962 | - Made user requested changes to the itertools module. |
| 2963 | Subsumed the times() function into repeat(). |
| 2964 | Added chain() and cycle(). |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2965 | |
Tim Peters | c4e0940 | 2003-04-25 07:11:48 +0000 | [diff] [blame] | 2966 | - The rotor module is now deprecated; the encryption algorithm it uses |
Andrew M. Kuchling | fb5f485 | 2003-04-24 13:19:56 +0000 | [diff] [blame] | 2967 | is not believed to be secure, and including crypto code with Python |
| 2968 | has implications for exporting and importing it in various countries. |
| 2969 | |
Skip Montanaro | 89feabc | 2003-03-30 04:54:24 +0000 | [diff] [blame] | 2970 | - The socket module now always uses the _socketobject wrapper class, even on |
| 2971 | platforms which have dup(2). The makefile() method is built directly |
| 2972 | on top of the socket without duplicating the file descriptor, allowing |
| 2973 | timeouts to work properly. |
| 2974 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 2975 | Library |
| 2976 | ------- |
| 2977 | |
Tim Peters | c4e0940 | 2003-04-25 07:11:48 +0000 | [diff] [blame] | 2978 | - New generator function os.walk() is an easy-to-use alternative to |
| 2979 | os.path.walk(). See os module docs for details. os.path.walk() |
| 2980 | isn't deprecated at this time, but may become deprecated in a |
| 2981 | future release. |
| 2982 | |
Marc-André Lemburg | 246d847 | 2003-04-24 11:36:11 +0000 | [diff] [blame] | 2983 | - Added new module "platform" which provides a wide range of tools |
| 2984 | for querying platform dependent features. |
| 2985 | |
Andrew M. Kuchling | 4e42b31 | 2003-04-24 16:45:05 +0000 | [diff] [blame] | 2986 | - netrc now allows ASCII punctuation characters in passwords. |
Raymond Hettinger | 1d87786 | 2003-04-23 19:06:08 +0000 | [diff] [blame] | 2987 | |
Martin v. Löwis | 153c9e4 | 2003-04-19 20:59:03 +0000 | [diff] [blame] | 2988 | - shelve now supports the optional writeback argument, and exposes |
| 2989 | pickle protocol versions. |
| 2990 | |
Guido van Rossum | a268540 | 2003-04-19 18:04:57 +0000 | [diff] [blame] | 2991 | - Several methods of nntplib.NNTP have grown an optional file argument |
| 2992 | which specifies a file where to divert the command's output |
| 2993 | (already supported by the body() method). (SF patch #720468) |
| 2994 | |
Martin v. Löwis | 281b2c6 | 2003-04-18 21:04:39 +0000 | [diff] [blame] | 2995 | - The self-documenting XML server library DocXMLRPCServer was added. |
| 2996 | |
Martin v. Löwis | 2548c73 | 2003-04-18 10:39:54 +0000 | [diff] [blame] | 2997 | - Support for internationalized domain names has been added through |
| 2998 | the 'idna' and 'punycode' encodings, the 'stringprep' module, the |
| 2999 | 'mkstringprep' tool, and enhancements to the socket and httplib |
| 3000 | modules. |
| 3001 | |
Walter Dörwald | 5688b7a | 2003-04-16 09:46:13 +0000 | [diff] [blame] | 3002 | - htmlentitydefs has two new dictionaries: name2codepoint maps |
| 3003 | HTML entity names to Unicode codepoints (as integers). |
| 3004 | codepoint2name is the reverse mapping. See SF patch #722017. |
| 3005 | |
Guido van Rossum | a12fe4e | 2003-04-09 19:06:21 +0000 | [diff] [blame] | 3006 | - pdb has a new command, "debug", which lets you step through |
| 3007 | arbitrary code from the debugger's (pdb) prompt. |
| 3008 | |
Raymond Hettinger | c377cbf | 2003-04-04 22:56:42 +0000 | [diff] [blame] | 3009 | - unittest.failUnlessEqual and its equivalent unittest.assertEqual now |
| 3010 | return 'not a == b' rather than 'a != b'. This gives the desired |
| 3011 | result for classes that define __eq__ without defining __ne__. |
| 3012 | |
Tim Peters | f6b8045 | 2003-04-07 19:21:15 +0000 | [diff] [blame] | 3013 | - sgmllib now supports SGML marked sections, in particular the |
Martin v. Löwis | 3163a3b | 2003-03-30 14:25:40 +0000 | [diff] [blame] | 3014 | MS Office extensions. |
| 3015 | |
Raymond Hettinger | 42182eb | 2003-03-09 05:33:33 +0000 | [diff] [blame] | 3016 | - The urllib module now offers support for the iterator protocol. |
| 3017 | SF patch 698520 contributed by Brett Cannon. |
| 3018 | |
Guido van Rossum | 9589a25 | 2003-03-06 01:56:12 +0000 | [diff] [blame] | 3019 | - New module timeit provides a simple framework for timing the |
| 3020 | execution speed of expressions and statements. |
| 3021 | |
Tim Peters | 44f14b0 | 2003-03-02 00:19:49 +0000 | [diff] [blame] | 3022 | - sets.Set objects now support mixed-type __eq__ and __ne__, instead |
| 3023 | of raising TypeError. If x is a Set object and y is a non-Set object, |
| 3024 | x == y is False, and x != y is True. This is akin to the change made |
| 3025 | for mixed-type comparisons of datetime objects in 2.3a2; more info |
| 3026 | about the rationale is in the NEWS entry for that. See also SF bug |
| 3027 | report <http://www.python.org/sf/693121>. |
| 3028 | |
Just van Rossum | 96b1c90 | 2003-03-03 17:32:15 +0000 | [diff] [blame] | 3029 | - On Unix platforms, if os.listdir() is called with a Unicode argument, |
| 3030 | it now returns Unicode strings. (This behavior was added earlier |
| 3031 | to the Windows NT/2k/XP version of os.listdir().) |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3032 | |
Andrew M. Kuchling | 6f177d4 | 2003-02-28 22:09:33 +0000 | [diff] [blame] | 3033 | - Distutils: both 'py_modules' and 'packages' keywords can now be specified |
| 3034 | in core.setup(). Previously you could supply one or the other, but |
| 3035 | not both of them. (SF patch #695090 from Bernhard Herzog) |
| 3036 | |
Skip Montanaro | 64a839e | 2003-03-20 23:36:55 +0000 | [diff] [blame] | 3037 | - New csv package makes it easy to read/write CSV files. |
| 3038 | |
Gustavo Niemeyer | 68d8cef | 2003-04-17 21:31:33 +0000 | [diff] [blame] | 3039 | - Module shlex has been extended to allow posix-like shell parsings, |
| 3040 | including a split() function for easy spliting of quoted strings and |
| 3041 | commands. An iterator interface was also implemented. |
| 3042 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3043 | Tools/Demos |
| 3044 | ----------- |
| 3045 | |
Tim Peters | 21d7d4d | 2003-04-18 00:45:59 +0000 | [diff] [blame] | 3046 | - New script combinerefs.py helps analyze new PYTHONDUMPREFS output. |
| 3047 | See the module docstring for details. |
| 3048 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3049 | Build |
| 3050 | ----- |
| 3051 | |
Neal Norwitz | 35892b9 | 2003-02-23 23:45:35 +0000 | [diff] [blame] | 3052 | - Fix problem building on OSF1 because the compiler only accepted |
| 3053 | preprocessor directives that start in column 1. (SF bug #691793.) |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3054 | |
| 3055 | C API |
| 3056 | ----- |
| 3057 | |
Guido van Rossum | e13ddc9 | 2003-04-17 17:29:22 +0000 | [diff] [blame] | 3058 | - Added PyGC_Collect(), equivalent to calling gc.collect(). |
| 3059 | |
Guido van Rossum | 0fc8f00 | 2003-04-15 15:12:39 +0000 | [diff] [blame] | 3060 | - PyThreadState_GetDict() was changed not to raise an exception or |
| 3061 | issue a fatal error when no current thread state is available. This |
| 3062 | makes it possible to print dictionaries when no thread is active. |
| 3063 | |
Guido van Rossum | e13ddc9 | 2003-04-17 17:29:22 +0000 | [diff] [blame] | 3064 | - LONG_LONG was renamed to PY_LONG_LONG. Extensions that use this and |
| 3065 | need compatibility with previous versions can use this: |
Guido van Rossum | ecf0f02 | 2003-04-26 00:21:31 +0000 | [diff] [blame] | 3066 | |
Guido van Rossum | e13ddc9 | 2003-04-17 17:29:22 +0000 | [diff] [blame] | 3067 | #ifndef PY_LONG_LONG |
| 3068 | #define PY_LONG_LONG LONG_LONG |
| 3069 | #endif |
Martin v. Löwis | b9a0f91 | 2003-03-29 10:06:18 +0000 | [diff] [blame] | 3070 | |
Raymond Hettinger | 1da1dbf | 2003-03-17 19:46:11 +0000 | [diff] [blame] | 3071 | - Added PyObject_SelfIter() to fill the tp_iter slot for the |
Raymond Hettinger | 0153826 | 2003-03-17 08:24:35 +0000 | [diff] [blame] | 3072 | typical case where the method returns its self argument. |
| 3073 | |
Guido van Rossum | e5c691a | 2003-03-07 15:13:17 +0000 | [diff] [blame] | 3074 | - The extended type structure used for heap types (new-style |
| 3075 | classes defined by Python code using a class statement) is now |
| 3076 | exported from object.h as PyHeapTypeObject. (SF patch #696193.) |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3077 | |
| 3078 | New platforms |
| 3079 | ------------- |
| 3080 | |
Guido van Rossum | ecf0f02 | 2003-04-26 00:21:31 +0000 | [diff] [blame] | 3081 | None this time. |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3082 | |
| 3083 | Tests |
| 3084 | ----- |
| 3085 | |
Neal Norwitz | 55b61d2 | 2003-02-28 19:57:03 +0000 | [diff] [blame] | 3086 | - test_timeout now requires -u network to be passed to regrtest to run. |
| 3087 | See SF bug #692988. |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3088 | |
| 3089 | Windows |
| 3090 | ------- |
| 3091 | |
Tim Peters | 11b2306 | 2003-04-23 02:39:17 +0000 | [diff] [blame] | 3092 | - os.fsync() now exists on Windows, and calls the Microsoft _commit() |
| 3093 | function. |
| 3094 | |
Guido van Rossum | f405064 | 2003-04-09 19:39:06 +0000 | [diff] [blame] | 3095 | - New function winsound.MessageBeep() wraps the Win32 API |
| 3096 | MessageBeep(). |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3097 | |
| 3098 | Mac |
| 3099 | --- |
| 3100 | |
Just van Rossum | 96b1c90 | 2003-03-03 17:32:15 +0000 | [diff] [blame] | 3101 | - os.listdir() now returns Unicode strings on MacOS X when called with |
| 3102 | a Unicode argument. See the general news item under "Library". |
Just van Rossum | 46c9784 | 2003-02-25 21:42:15 +0000 | [diff] [blame] | 3103 | |
Jack Jansen | deac2ac | 2003-02-24 11:04:17 +0000 | [diff] [blame] | 3104 | - A new method MacOS.WMAvailable() returns true if it is safe to access |
| 3105 | the window manager, false otherwise. |
Tim Peters | 44f14b0 | 2003-03-02 00:19:49 +0000 | [diff] [blame] | 3106 | |
Jack Jansen | cf76be0 | 2003-03-24 12:13:54 +0000 | [diff] [blame] | 3107 | - EasyDialogs dialogs are now movable-modal, and if the application is |
| 3108 | currently in the background they will ask to be moved to the foreground |
| 3109 | before displaying. |
Tim Peters | f6b8045 | 2003-04-07 19:21:15 +0000 | [diff] [blame] | 3110 | |
Jack Jansen | a02b7a8 | 2003-04-01 22:33:37 +0000 | [diff] [blame] | 3111 | - OSA Scripting support has improved a lot, and gensuitemodule.py can now |
Jack Jansen | de354b7 | 2003-04-11 15:37:20 +0000 | [diff] [blame] | 3112 | be used by mere mortals. The documentation is now also more or less |
| 3113 | complete. |
Tim Peters | f6b8045 | 2003-04-07 19:21:15 +0000 | [diff] [blame] | 3114 | |
Jack Jansen | a02b7a8 | 2003-04-01 22:33:37 +0000 | [diff] [blame] | 3115 | - The IDE (in a framework build) now includes introductory documentation |
| 3116 | in Apple Help Viewer format. |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 3117 | |
| 3118 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3119 | What's New in Python 2.3 alpha 2? |
| 3120 | ================================= |
| 3121 | |
Guido van Rossum | 22e2f73 | 2003-02-19 18:18:47 +0000 | [diff] [blame] | 3122 | *Release date: 19-Feb-2003* |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3123 | |
| 3124 | Core and builtins |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 3125 | ----------------- |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3126 | |
Walter Dörwald | 2ffec02 | 2003-02-19 16:34:11 +0000 | [diff] [blame] | 3127 | - Negative positions returned from PEP 293 error callbacks are now |
| 3128 | treated as being relative to the end of the input string. Positions |
| 3129 | that are out of bounds raise an IndexError. |
| 3130 | |
Guido van Rossum | 162e38c | 2003-02-19 15:25:10 +0000 | [diff] [blame] | 3131 | - sys.path[0] (the directory from which the script is loaded) is now |
| 3132 | turned into an absolute pathname, unless it is the empty string. |
| 3133 | (SF patch #664376.) |
| 3134 | |
Guido van Rossum | 4b499dd3 | 2003-02-13 22:07:59 +0000 | [diff] [blame] | 3135 | - Finally fixed the bug in compile() and exec where a string ending |
| 3136 | with an indented code block but no newline would raise SyntaxError. |
| 3137 | This would have been a four-line change in parsetok.c... Except |
| 3138 | codeop.py depends on this behavior, so a compilation flag had to be |
| 3139 | invented that causes the tokenizer to revert to the old behavior; |
| 3140 | this required extra changes to 2 .h files, 2 .c files, and 2 .py |
Guido van Rossum | 1442dc1 | 2003-02-13 22:19:20 +0000 | [diff] [blame] | 3141 | files. (Fixes SF bug #501622.) |
Guido van Rossum | 4b499dd3 | 2003-02-13 22:07:59 +0000 | [diff] [blame] | 3142 | |
Guido van Rossum | 298e421 | 2003-02-13 16:30:16 +0000 | [diff] [blame] | 3143 | - If a new-style class defines neither __new__ nor __init__, its |
| 3144 | constructor would ignore all arguments. This is changed now: the |
| 3145 | constructor refuses arguments in this case. This might break code |
| 3146 | that worked under Python 2.2. The simplest fix is to add a no-op |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3147 | __init__: ``def __init__(self, *args, **kw): pass``. |
Guido van Rossum | 298e421 | 2003-02-13 16:30:16 +0000 | [diff] [blame] | 3148 | |
Guido van Rossum | 48035eb | 2003-02-12 17:05:26 +0000 | [diff] [blame] | 3149 | - Through a bytecode optimizer bug (and I bet you didn't even know |
| 3150 | Python *had* a bytecode optimizer :-), "unsigned" hex/oct constants |
| 3151 | with a leading minus sign would come out with the wrong sign. |
| 3152 | ("Unsigned" hex/oct constants are those with a face value in the |
| 3153 | range sys.maxint+1 through sys.maxint*2+1, inclusive; these have |
| 3154 | always been interpreted as negative numbers through sign folding.) |
| 3155 | E.g. 0xffffffff is -1, and -(0xffffffff) is 1, but -0xffffffff would |
| 3156 | come out as -4294967295. This was the case in Python 2.2 through |
| 3157 | 2.2.2 and 2.3a1, and in Python 2.4 it will once again have that |
| 3158 | value, but according to PEP 237 it really needs to be 1 now. This |
| 3159 | will be backported to Python 2.2.3 a well. (SF #660455) |
| 3160 | |
Guido van Rossum | 4771065 | 2003-02-12 20:48:22 +0000 | [diff] [blame] | 3161 | - int(s, base) sometimes sign-folds hex and oct constants; it only |
| 3162 | does this when base is 0 and s.strip() starts with a '0'. When the |
| 3163 | sign is actually folded, as in int("0xffffffff", 0) on a 32-bit |
| 3164 | machine, which returns -1, a FutureWarning is now issued; in Python |
| 3165 | 2.4, this will return 4294967295L, as do int("+0xffffffff", 0) and |
| 3166 | int("0xffffffff", 16) right now. (PEP 347) |
| 3167 | |
Guido van Rossum | a89d10e | 2003-02-12 03:58:38 +0000 | [diff] [blame] | 3168 | - super(X, x): x may now be a proxy for an X instance, i.e. |
| 3169 | issubclass(x.__class__, X) but not issubclass(type(x), X). |
| 3170 | |
Guido van Rossum | 03bc7d3 | 2003-02-12 03:32:58 +0000 | [diff] [blame] | 3171 | - isinstance(x, X): if X is a new-style class, this is now equivalent |
| 3172 | to issubclass(type(x), X) or issubclass(x.__class__, X). Previously |
| 3173 | only type(x) was tested. (For classic classes this was already the |
| 3174 | case.) |
| 3175 | |
Just van Rossum | 73ffb4a | 2003-02-10 09:57:08 +0000 | [diff] [blame] | 3176 | - compile(), eval() and the exec statement now fully support source code |
| 3177 | passed as unicode strings. |
| 3178 | |
Neal Norwitz | de8b94c | 2003-02-10 02:12:43 +0000 | [diff] [blame] | 3179 | - int subclasses can be initialized with longs if the value fits in an int. |
| 3180 | See SF bug #683467. |
| 3181 | |
Tim Peters | bf2674b | 2003-02-02 07:51:32 +0000 | [diff] [blame] | 3182 | - long(string, base) takes time linear in len(string) when base is a power |
| 3183 | of 2 now. It used to take time quadratic in len(string). |
| 3184 | |
Martin v. Löwis | 8afd757 | 2003-01-25 22:46:11 +0000 | [diff] [blame] | 3185 | - filter returns now Unicode results for Unicode arguments. |
| 3186 | |
Martin v. Löwis | af6a27a | 2003-01-03 19:16:14 +0000 | [diff] [blame] | 3187 | - raw_input can now return Unicode objects. |
| 3188 | |
Skip Montanaro | 4abd5f0 | 2003-01-02 20:51:08 +0000 | [diff] [blame] | 3189 | - List objects' sort() method now accepts None as the comparison function. |
| 3190 | Passing None is semantically identical to calling sort() with no |
| 3191 | arguments. |
| 3192 | |
Neal Norwitz | 1a99750 | 2003-01-13 20:13:12 +0000 | [diff] [blame] | 3193 | - Fixed crash when printing a subclass of str and __str__ returned self. |
| 3194 | See SF bug #667147. |
| 3195 | |
Neal Norwitz | abcb0c0 | 2003-01-28 19:21:24 +0000 | [diff] [blame] | 3196 | - Fixed an invalid RuntimeWarning and an undetected error when trying |
Tim Peters | 506be28 | 2003-01-31 22:27:17 +0000 | [diff] [blame] | 3197 | to convert a long integer into a float which couldn't fit. |
Neal Norwitz | abcb0c0 | 2003-01-28 19:21:24 +0000 | [diff] [blame] | 3198 | See SF bug #676155. |
| 3199 | |
Guido van Rossum | 26507db | 2003-02-06 16:16:50 +0000 | [diff] [blame] | 3200 | - Function objects now have a __module__ attribute that is bound to |
Jeremy Hylton | 0253d6e | 2003-02-06 16:00:15 +0000 | [diff] [blame] | 3201 | the name of the module in which the function was defined. This |
Guido van Rossum | 26507db | 2003-02-06 16:16:50 +0000 | [diff] [blame] | 3202 | applies for C functions and methods as well as functions and methods |
| 3203 | defined in Python. This attribute is used by pickle.whichmodule(), |
| 3204 | which changes the behavior of whichmodule slightly. In Python 2.2 |
| 3205 | whichmodule() returns "__main__" for functions that are not defined |
| 3206 | at the top-level of a module (examples: methods, nested functions). |
| 3207 | Now whichmodule() will return the proper module name. |
Jeremy Hylton | 0253d6e | 2003-02-06 16:00:15 +0000 | [diff] [blame] | 3208 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3209 | Extension modules |
| 3210 | ----------------- |
| 3211 | |
Guido van Rossum | 6921eca | 2003-02-18 16:36:28 +0000 | [diff] [blame] | 3212 | - operator.isNumberType() now checks that the object has a nb_int or |
| 3213 | nb_float slot, rather than simply checking whether it has a non-NULL |
| 3214 | tp_as_number pointer. |
| 3215 | |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 3216 | - The imp module now has ways to acquire and release the "import |
| 3217 | lock": imp.acquire_lock() and imp.release_lock(). Note: this is a |
| 3218 | reentrant lock, so releasing the lock only truly releases it when |
| 3219 | this is the last release_lock() call. You can check with |
| 3220 | imp.lock_held(). (SF bug #580952 and patch #683257.) |
| 3221 | |
Guido van Rossum | a003290 | 2003-02-20 01:38:31 +0000 | [diff] [blame] | 3222 | - Change to cPickle to match pickle.py (see below and PEP 307). |
| 3223 | |
Neal Norwitz | 9caf9c0 | 2003-02-10 01:54:06 +0000 | [diff] [blame] | 3224 | - Fix some bugs in the parser module. SF bug #678518. |
| 3225 | |
Guido van Rossum | 7d9ea50 | 2003-02-03 20:45:52 +0000 | [diff] [blame] | 3226 | - Thanks to Scott David Daniels, a subtle bug in how the zlib |
Walter Dörwald | 28d8196 | 2003-02-03 20:53:14 +0000 | [diff] [blame] | 3227 | extension implemented flush() was fixed. Scott also rewrote the |
Guido van Rossum | 7d9ea50 | 2003-02-03 20:45:52 +0000 | [diff] [blame] | 3228 | zlib test suite using the unittest module. (SF bug #640230 and |
| 3229 | patch #678531.) |
| 3230 | |
Raymond Hettinger | 96ef811 | 2003-02-01 00:10:11 +0000 | [diff] [blame] | 3231 | - Added an itertools module containing high speed, memory efficient |
| 3232 | looping constructs inspired by tools from Haskell and SML. |
| 3233 | |
Guido van Rossum | 99d4abf | 2003-01-27 22:22:50 +0000 | [diff] [blame] | 3234 | - The SSL module now handles sockets with a timeout set correctly (SF |
| 3235 | patch #675750, fixing SF bug #675552). |
| 3236 | |
Barry Warsaw | f8ba39c | 2003-01-07 20:55:26 +0000 | [diff] [blame] | 3237 | - os/posixmodule has grown the sysexits.h constants (EX_OK and friends). |
| 3238 | |
Guido van Rossum | 6d0d365 | 2003-01-07 20:34:19 +0000 | [diff] [blame] | 3239 | - Fixed broken threadstate swap in readline that could cause fatal |
| 3240 | errors when a readline hook was being invoked while a background |
| 3241 | thread was active. (SF bugs #660476 and #513033.) |
| 3242 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3243 | - fcntl now exposes the strops.h I_* constants. |
| 3244 | |
Tim Peters | 0064026 | 2003-01-24 15:31:31 +0000 | [diff] [blame] | 3245 | - Fix a crash on Solaris that occurred when calling close() on |
| 3246 | an mmap'ed file which was already closed. (SF patch #665913) |
| 3247 | |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 3248 | - Fixed several serious bugs in the zipimport implementation. |
Guido van Rossum | a003290 | 2003-02-20 01:38:31 +0000 | [diff] [blame] | 3249 | |
Tim Peters | 0123139 | 2003-01-02 19:10:19 +0000 | [diff] [blame] | 3250 | - datetime changes: |
| 3251 | |
Guido van Rossum | 8b7a9a3 | 2003-04-14 22:01:58 +0000 | [diff] [blame] | 3252 | The date class is now properly subclassable. (SF bug #720908) |
| 3253 | |
Tim Peters | 0bf60bd | 2003-01-08 20:40:01 +0000 | [diff] [blame] | 3254 | The datetime and datetimetz classes have been collapsed into a single |
| 3255 | datetime class, and likewise the time and timetz classes into a single |
| 3256 | time class. Previously, a datetimetz object with tzinfo=None acted |
| 3257 | exactly like a datetime object, and similarly for timetz. This wasn't |
| 3258 | enough of a difference to justify distinct classes, and life is simpler |
| 3259 | now. |
| 3260 | |
Tim Peters | 0123139 | 2003-01-02 19:10:19 +0000 | [diff] [blame] | 3261 | today() and now() now round system timestamps to the closest |
Tim Peters | adf6420 | 2003-01-04 06:03:15 +0000 | [diff] [blame] | 3262 | microsecond <http://www.python.org/sf/661086>. This repairs an |
| 3263 | irritation most likely seen on Windows systems. |
Tim Peters | 0123139 | 2003-01-02 19:10:19 +0000 | [diff] [blame] | 3264 | |
Tim Peters | f196a0a | 2003-01-22 04:45:50 +0000 | [diff] [blame] | 3265 | In dt.astimezone(tz), if tz.utcoffset(dt) returns a duration, |
Tim Peters | 397301e | 2003-01-02 21:28:08 +0000 | [diff] [blame] | 3266 | ValueError is raised if tz.dst(dt) returns None (2.3a1 treated it |
Tim Peters | adf6420 | 2003-01-04 06:03:15 +0000 | [diff] [blame] | 3267 | as 0 instead, but a tzinfo subclass wishing to participate in |
| 3268 | time zone conversion has to take a stand on whether it supports |
| 3269 | DST; if you don't care about DST, then code dst() to return 0 minutes, |
| 3270 | meaning that DST is never in effect). |
Tim Peters | 397301e | 2003-01-02 21:28:08 +0000 | [diff] [blame] | 3271 | |
Tim Peters | 7702304 | 2003-01-03 22:35:24 +0000 | [diff] [blame] | 3272 | The tzinfo methods utcoffset() and dst() must return a timedelta object |
| 3273 | (or None) now. In 2.3a1 they could also return an int or long, but that |
| 3274 | was an unhelpfully redundant leftover from an earlier version wherein |
Tim Peters | 397301e | 2003-01-02 21:28:08 +0000 | [diff] [blame] | 3275 | they couldn't return a timedelta. TOOWTDI. |
| 3276 | |
Tim Peters | 7702304 | 2003-01-03 22:35:24 +0000 | [diff] [blame] | 3277 | The example tzinfo class for local time had a bug. It was replaced |
| 3278 | by a later example coded by Guido. |
| 3279 | |
Tim Peters | f196a0a | 2003-01-22 04:45:50 +0000 | [diff] [blame] | 3280 | datetime.astimezone(tz) no longer raises an exception when the |
Tim Peters | adf6420 | 2003-01-04 06:03:15 +0000 | [diff] [blame] | 3281 | input datetime has no UTC equivalent in tz. For typical "hybrid" time |
| 3282 | zones (a single tzinfo subclass modeling both standard and daylight |
| 3283 | time), this case can arise one hour per year, at the hour daylight time |
Tim Peters | f196a0a | 2003-01-22 04:45:50 +0000 | [diff] [blame] | 3284 | ends. See new docs for details. In short, the new behavior mimics |
| 3285 | the local wall clock's behavior of repeating an hour in local time. |
| 3286 | |
| 3287 | dt.astimezone() can no longer be used to convert between naive and aware |
| 3288 | datetime objects. If you merely want to attach, or remove, a tzinfo |
| 3289 | object, without any conversion of date and time members, use |
| 3290 | dt.replace(tzinfo=whatever) instead, where "whatever" is None or a |
| 3291 | tzinfo subclass instance. |
| 3292 | |
| 3293 | A new method tzinfo.fromutc(dt) can be overridden in tzinfo subclasses |
| 3294 | to give complete control over how a UTC time is to be converted to |
| 3295 | a local time. The default astimezone() implementation calls fromutc() |
| 3296 | as its last step, so a tzinfo subclass can affect that too by overriding |
| 3297 | fromutc(). It's expected that the default fromutc() implementation will |
| 3298 | be suitable as-is for "almost all" time zone subclasses, but the |
| 3299 | creativity of political time zone fiddling appears unbounded -- fromutc() |
| 3300 | allows the highly motivated to emulate any scheme expressible in Python. |
Tim Peters | adf6420 | 2003-01-04 06:03:15 +0000 | [diff] [blame] | 3301 | |
Tim Peters | 10cadce | 2003-01-23 19:58:02 +0000 | [diff] [blame] | 3302 | datetime.now(): The optional tzinfo argument was undocumented (that's |
| 3303 | repaired), and its name was changed to tz ("tzinfo" is overloaded enough |
| 3304 | already). With a tz argument, now(tz) used to return the local date |
| 3305 | and time, and attach tz to it, without any conversion of date and time |
| 3306 | members. This was less than useful. Now now(tz) returns the current |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3307 | date and time as local time in tz's time zone, akin to :: |
| 3308 | |
Tim Peters | 10cadce | 2003-01-23 19:58:02 +0000 | [diff] [blame] | 3309 | tz.fromutc(datetime.utcnow().replace(tzinfo=utc)) |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3310 | |
Tim Peters | 10cadce | 2003-01-23 19:58:02 +0000 | [diff] [blame] | 3311 | where "utc" is an instance of a tzinfo subclass modeling UTC. Without |
| 3312 | a tz argument, now() continues to return the current local date and time, |
| 3313 | as a naive datetime object. |
| 3314 | |
Tim Peters | 2a44a8d | 2003-01-23 20:53:10 +0000 | [diff] [blame] | 3315 | datetime.fromtimestamp(): Like datetime.now() above, this had less than |
| 3316 | useful behavior when the optional tinzo argument was specified. See |
| 3317 | also SF bug report <http://www.python.org/sf/660872>. |
| 3318 | |
Tim Peters | 8d81a01 | 2003-01-24 22:36:34 +0000 | [diff] [blame] | 3319 | date and datetime comparison: In order to prevent comparison from |
| 3320 | falling back to the default compare-object-addresses strategy, these |
| 3321 | raised TypeError whenever they didn't understand the other object type. |
| 3322 | They still do, except when the other object has a "timetuple" attribute, |
| 3323 | in which case they return NotImplemented now. This gives other |
| 3324 | datetime objects (e.g., mxDateTime) a chance to intercept the |
| 3325 | comparison. |
| 3326 | |
Tim Peters | 07534a6 | 2003-02-07 22:50:28 +0000 | [diff] [blame] | 3327 | date, time, datetime and timedelta comparison: When the exception |
| 3328 | for mixed-type comparisons in the last paragraph doesn't apply, if |
| 3329 | the comparison is == then False is returned, and if the comparison is |
| 3330 | != then True is returned. Because dict lookup and the "in" operator |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3331 | only invoke __eq__, this allows, for example, :: |
Tim Peters | 07534a6 | 2003-02-07 22:50:28 +0000 | [diff] [blame] | 3332 | |
| 3333 | if some_datetime in some_sequence: |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3334 | |
| 3335 | and :: |
| 3336 | |
Tim Peters | 07534a6 | 2003-02-07 22:50:28 +0000 | [diff] [blame] | 3337 | some_dict[some_timedelta] = whatever |
| 3338 | |
| 3339 | to work as expected, without raising TypeError just because the |
| 3340 | sequence is heterogeneous, or the dict has mixed-type keys. [This |
| 3341 | seems like a good idea to implement for all mixed-type comparisons |
| 3342 | that don't want to allow falling back to address comparison.] |
| 3343 | |
Tim Peters | 75a6e3b | 2003-01-04 18:17:36 +0000 | [diff] [blame] | 3344 | The constructors building a datetime from a timestamp could raise |
| 3345 | ValueError if the platform C localtime()/gmtime() inserted "leap |
| 3346 | seconds". Leap seconds are ignored now. On such platforms, it's |
| 3347 | possible to have timestamps that differ by a second, yet where |
| 3348 | datetimes constructed from them are equal. |
| 3349 | |
Tim Peters | 506be28 | 2003-01-31 22:27:17 +0000 | [diff] [blame] | 3350 | The pickle format of date, time and datetime objects has changed |
| 3351 | completely. The undocumented pickler and unpickler functions no |
Tim Peters | b57f8f0 | 2003-02-01 02:54:15 +0000 | [diff] [blame] | 3352 | longer exist. The undocumented __setstate__() and __getstate__() |
| 3353 | methods no longer exist either. |
Tim Peters | 506be28 | 2003-01-31 22:27:17 +0000 | [diff] [blame] | 3354 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3355 | Library |
| 3356 | ------- |
| 3357 | |
Guido van Rossum | a003290 | 2003-02-20 01:38:31 +0000 | [diff] [blame] | 3358 | - The logging module was updated slightly; the WARN level was renamed |
| 3359 | to WARNING, and the matching function/method warn() to warning(). |
| 3360 | |
| 3361 | - The pickle and cPickle modules were updated with a new pickling |
| 3362 | protocol (documented by pickletools.py, see below) and several |
| 3363 | extensions to the pickle customization API (__reduce__, __setstate__ |
| 3364 | etc.). The copy module now uses more of the pickle customization |
| 3365 | API to copy objects that don't implement __copy__ or __deepcopy__. |
| 3366 | See PEP 307 for details. |
| 3367 | |
| 3368 | - The distutils "register" command now uses http://www.python.org/pypi |
| 3369 | as the default repository. (See PEP 301.) |
| 3370 | |
Andrew MacIntyre | 251b816 | 2003-02-17 09:20:23 +0000 | [diff] [blame] | 3371 | - the platform dependent path related variables sep, altsep, extsep, |
| 3372 | pathsep, curdir, pardir and defpath are now defined in the platform |
Michael W. Hudson | 9e5d87f | 2003-02-17 12:26:23 +0000 | [diff] [blame] | 3373 | dependent path modules (e.g. ntpath.py) rather than os.py, so these |
Tim Peters | 44f14b0 | 2003-03-02 00:19:49 +0000 | [diff] [blame] | 3374 | variables are now available via os.path. They continue to be |
| 3375 | available from the os module. |
Michael W. Hudson | 9e5d87f | 2003-02-17 12:26:23 +0000 | [diff] [blame] | 3376 | (see <http://www.python.org/sf/680789>). |
Andrew MacIntyre | 251b816 | 2003-02-17 09:20:23 +0000 | [diff] [blame] | 3377 | |
Tim Peters | 6ee0480 | 2003-02-05 18:29:34 +0000 | [diff] [blame] | 3378 | - array.array was added to the types repr.py knows about (see |
| 3379 | <http://www.python.org/sf/680789>). |
| 3380 | |
Tim Peters | 8ecfc8e | 2003-01-27 18:51:48 +0000 | [diff] [blame] | 3381 | - The new pickletools.py contains lots of documentation about pickle |
| 3382 | internals, and supplies some helpers for working with pickles, such as |
| 3383 | a symbolic pickle disassembler. |
| 3384 | |
Skip Montanaro | 9a7c96a | 2003-01-22 18:17:25 +0000 | [diff] [blame] | 3385 | - Xmlrpclib.py now supports the builtin boolean type. |
| 3386 | |
Martin v. Löwis | 0c6774d | 2003-01-15 11:51:06 +0000 | [diff] [blame] | 3387 | - py_compile has a new 'doraise' flag and a new PyCompileError |
| 3388 | exception. |
| 3389 | |
Martin v. Löwis | d69663d | 2003-01-15 11:37:23 +0000 | [diff] [blame] | 3390 | - SimpleXMLRPCServer now supports CGI through the CGIXMLRPCRequestHandler |
| 3391 | class. |
| 3392 | |
Guido van Rossum | 50e9223 | 2003-01-14 16:45:04 +0000 | [diff] [blame] | 3393 | - The sets module now raises TypeError in __cmp__, to clarify that |
| 3394 | sets are not intended to be three-way-compared; the comparison |
| 3395 | operators are overloaded as subset/superset tests. |
| 3396 | |
Guido van Rossum | cd0c047 | 2003-01-07 23:03:05 +0000 | [diff] [blame] | 3397 | - Bastion.py and rexec.py are disabled. These modules are not safe in |
| 3398 | Python 2.2. or 2.3. |
| 3399 | |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3400 | - realpath is now exported when doing ``from poxixpath import *``. |
Neal Norwitz | bb0246a | 2003-01-03 18:12:28 +0000 | [diff] [blame] | 3401 | It is also exported for ntpath, macpath, and os2emxpath. |
| 3402 | See SF bug #659228. |
| 3403 | |
Neal Norwitz | b9ef4ae | 2003-01-05 23:19:43 +0000 | [diff] [blame] | 3404 | - New module tarfile from Lars Gustäbel provides a comprehensive interface |
| 3405 | to tar archive files with transparent gzip and bzip2 compression. |
| 3406 | See SF patch #651082. |
| 3407 | |
Neal Norwitz | 4f44237 | 2003-01-06 06:51:36 +0000 | [diff] [blame] | 3408 | - urlparse can now parse imap:// URLs. See SF feature request #618024. |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 3409 | |
Neal Norwitz | e931ed5 | 2003-01-10 23:24:32 +0000 | [diff] [blame] | 3410 | - Tkinter.Canvas.scan_dragto() provides an optional parameter to support |
| 3411 | the gain value which is passed to Tk. SF bug# 602259. |
| 3412 | |
Neal Norwitz | e4c40da | 2003-01-26 02:45:47 +0000 | [diff] [blame] | 3413 | - Fix logging.handlers.SysLogHandler protocol when using UNIX domain sockets. |
Tim Peters | 8ecfc8e | 2003-01-27 18:51:48 +0000 | [diff] [blame] | 3414 | See SF patch #642974. |
Neal Norwitz | e4c40da | 2003-01-26 02:45:47 +0000 | [diff] [blame] | 3415 | |
Skip Montanaro | 12fe72e | 2003-02-25 17:46:20 +0000 | [diff] [blame] | 3416 | - The dospath module was deleted. Use the ntpath module when manipulating |
| 3417 | DOS paths from other platforms. |
| 3418 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3419 | Tools/Demos |
| 3420 | ----------- |
| 3421 | |
Skip Montanaro | 13b2910 | 2003-02-03 15:17:25 +0000 | [diff] [blame] | 3422 | - Two new scripts (db2pickle.py and pickle2db.py) were added to the |
| 3423 | Tools/scripts directory to facilitate conversion from the old bsddb module |
| 3424 | to the new one. While the user-visible API of the new module is |
| 3425 | compatible with the old one, it's likely that the version of the |
| 3426 | underlying database library has changed. To convert from the old library, |
| 3427 | run the db2pickle.py script using the old version of Python to convert it |
| 3428 | to a pickle file. After upgrading Python, run the pickle2db.py script |
| 3429 | using the new version of Python to reconstitute your database. For |
| 3430 | example: |
| 3431 | |
Skip Montanaro | 621f055 | 2003-02-03 15:48:10 +0000 | [diff] [blame] | 3432 | % python2.2 db2pickle.py -h some.db > some.pickle |
| 3433 | % python2.3 pickle2db.py -h some.db.new < some.pickle |
Skip Montanaro | 13b2910 | 2003-02-03 15:17:25 +0000 | [diff] [blame] | 3434 | |
| 3435 | Run the scripts without any args to get a usage message. |
| 3436 | |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 3437 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3438 | Build |
| 3439 | ----- |
| 3440 | |
Guido van Rossum | 4507ec7 | 2003-02-14 19:29:22 +0000 | [diff] [blame] | 3441 | - The audio driver tests (test_ossaudiodev.py and |
| 3442 | test_linuxaudiodev.py) are no longer run by default. This is |
| 3443 | because they don't always work, depending on your hardware and |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3444 | software. To run these tests, you must use an invocation like :: |
| 3445 | |
Guido van Rossum | 4507ec7 | 2003-02-14 19:29:22 +0000 | [diff] [blame] | 3446 | ./python Lib/test/regrtest.py -u audio test_ossaudiodev |
| 3447 | |
Skip Montanaro | decc6a4 | 2003-01-01 20:07:49 +0000 | [diff] [blame] | 3448 | - On systems which build using the configure script, compiler flags which |
| 3449 | used to be lumped together using the OPT flag have been split into two |
| 3450 | groups, OPT and BASECFLAGS. OPT is meant to carry just optimization- and |
| 3451 | debug-related flags like "-g" and "-O3". BASECFLAGS is meant to carry |
| 3452 | compiler flags that are required to get a clean compile. On some |
| 3453 | platforms (many Linux flavors in particular) BASECFLAGS will be empty by |
| 3454 | default. On others, such as Mac OS X and SCO, it will contain required |
| 3455 | flags. This change allows people building Python to override OPT without |
| 3456 | fear of clobbering compiler flags which are required to get a clean build. |
| 3457 | |
| 3458 | - On Darwin/Mac OS X platforms, /sw/lib and /sw/include are added to the |
| 3459 | relevant search lists in setup.py. This allows users building Python to |
| 3460 | take advantage of the many packages available from the fink project |
| 3461 | <http://fink.sf.net/>. |
| 3462 | |
| 3463 | - A new Makefile target, scriptsinstall, installs a number of useful scripts |
| 3464 | from the Tools/scripts directory. |
| 3465 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3466 | C API |
| 3467 | ----- |
| 3468 | |
David Goodger | dd83cce | 2003-02-19 23:31:51 +0000 | [diff] [blame] | 3469 | - PyEval_GetFrame() is now declared to return a ``PyFrameObject *`` |
| 3470 | instead of a plain ``PyObject *``. (SF patch #686601.) |
Guido van Rossum | 6297a7a | 2003-02-19 15:53:17 +0000 | [diff] [blame] | 3471 | |
Guido van Rossum | 6921eca | 2003-02-18 16:36:28 +0000 | [diff] [blame] | 3472 | - PyNumber_Check() now checks that the object has a nb_int or nb_float |
| 3473 | slot, rather than simply checking whether it has a non-NULL |
| 3474 | tp_as_number pointer. |
| 3475 | |
Guido van Rossum | eea4718 | 2003-02-11 20:39:59 +0000 | [diff] [blame] | 3476 | - A C type that inherits from a base type that defines tp_as_buffer |
| 3477 | will now inherit the tp_as_buffer pointer if it doesn't define one. |
| 3478 | (SF #681367) |
| 3479 | |
Neil Schemenauer | 5042da6 | 2003-02-04 20:59:40 +0000 | [diff] [blame] | 3480 | - The PyArg_Parse functions now issue a DeprecationWarning if a float |
| 3481 | argument is provided when an integer is specified (this affects the 'b', |
| 3482 | 'B', 'h', 'H', 'i', and 'l' codes). Future versions of Python will |
| 3483 | raise a TypeError. |
Neil Schemenauer | cd63e61 | 2003-01-24 22:15:53 +0000 | [diff] [blame] | 3484 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3485 | Tests |
| 3486 | ----- |
| 3487 | |
Walter Dörwald | 11cfbd6 | 2003-03-26 16:03:16 +0000 | [diff] [blame] | 3488 | - Several tests weren't being run from regrtest.py (test_timeout.py, |
Guido van Rossum | a003290 | 2003-02-20 01:38:31 +0000 | [diff] [blame] | 3489 | test_tarfile.py, test_netrc.py, test_multifile.py, |
| 3490 | test_importhooks.py and test_imp.py). Now they are. (Note to |
| 3491 | developers: please read Lib/test/README when creating a new test, to |
| 3492 | make sure to do it right! All tests need to use either unittest or |
| 3493 | pydoc.) |
| 3494 | |
| 3495 | - Added test_posix.py, a test suite for the posix module. |
| 3496 | |
| 3497 | - Added test_hexoct.py, a test suite for hex/oct constant folding. |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 3498 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3499 | Windows |
| 3500 | ------- |
| 3501 | |
Guido van Rossum | 22e2f73 | 2003-02-19 18:18:47 +0000 | [diff] [blame] | 3502 | - The timeout code for socket connect() didn't work right; this has |
| 3503 | now been fixed. test_timeout.py should pass (at least most of the |
| 3504 | time). |
| 3505 | |
Thomas Heller | dda583d | 2003-01-31 20:45:41 +0000 | [diff] [blame] | 3506 | - distutils' msvccompiler class now passes the preprocessor options to |
| 3507 | the resource compiler. See SF patch #669198. |
| 3508 | |
Tim Peters | 0064026 | 2003-01-24 15:31:31 +0000 | [diff] [blame] | 3509 | - The bsddb module now ships with Sleepycat's 4.1.25.NC, the latest |
| 3510 | release without strong cryptography. |
| 3511 | |
Thomas Heller | 6c64fa7 | 2003-01-08 15:14:55 +0000 | [diff] [blame] | 3512 | - sys.path[0], if it contains a directory name, is now always an |
Guido van Rossum | a003290 | 2003-02-20 01:38:31 +0000 | [diff] [blame] | 3513 | absolute pathname. (SF patch #664376.) |
Thomas Heller | 6c64fa7 | 2003-01-08 15:14:55 +0000 | [diff] [blame] | 3514 | |
Tim Peters | bbc5d16 | 2003-01-02 16:02:27 +0000 | [diff] [blame] | 3515 | - The new logging package is now installed by the Windows installer. It |
| 3516 | wasn't in 2.3a1 due to oversight. |
| 3517 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3518 | Mac |
| 3519 | --- |
| 3520 | |
Jack Jansen | 1a1b6e4 | 2003-01-27 15:21:39 +0000 | [diff] [blame] | 3521 | - There are new dialogs EasyDialogs.AskFileForOpen, AskFileForSave |
| 3522 | and AskFolder. The old macfs.StandardGetFile and friends are deprecated. |
Tim Peters | 07534a6 | 2003-02-07 22:50:28 +0000 | [diff] [blame] | 3523 | |
Jack Jansen | c929636 | 2003-02-06 23:10:45 +0000 | [diff] [blame] | 3524 | - Most of the standard library now uses pathnames or FSRefs in preference |
| 3525 | of FSSpecs, and use the underlying Carbon.File and Carbon.Folder modules |
| 3526 | in stead of macfs. macfs will probably be deprecated in the future. |
Tim Peters | 8ecfc8e | 2003-01-27 18:51:48 +0000 | [diff] [blame] | 3527 | |
Jack Jansen | 1a1b6e4 | 2003-01-27 15:21:39 +0000 | [diff] [blame] | 3528 | - Type Carbon.File.FSCatalogInfo and supporting methods have been implemented. |
| 3529 | This also makes macfs.FSSpec.SetDates() work again. |
Tim Peters | 44f14b0 | 2003-03-02 00:19:49 +0000 | [diff] [blame] | 3530 | |
Jack Jansen | 9f70aab | 2003-02-16 23:00:53 +0000 | [diff] [blame] | 3531 | - There is a new module pimp, the package install manager for Python, and |
| 3532 | accompanying applet PackageManager. These allow you to easily download |
| 3533 | and install pretested extension packages either in source or binary |
| 3534 | form. Only in MacPython-OSX. |
Tim Peters | 44f14b0 | 2003-03-02 00:19:49 +0000 | [diff] [blame] | 3535 | |
Jack Jansen | 9f70aab | 2003-02-16 23:00:53 +0000 | [diff] [blame] | 3536 | - Applets are now built with bundlebuilder in MacPython-OSX, which should make |
Jack Jansen | 5d44b34 | 2003-02-18 23:32:47 +0000 | [diff] [blame] | 3537 | them more robust and also provides a path towards BuildApplication. The |
| 3538 | downside of this change is that applets can no longer be run from the |
| 3539 | Terminal window, this will hopefully be fixed in the 2.3b1. |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 3540 | |
Martin v. Löwis | 14e73b1 | 2003-01-01 09:51:12 +0000 | [diff] [blame] | 3541 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3542 | What's New in Python 2.3 alpha 1? |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3543 | ================================= |
| 3544 | |
Guido van Rossum | ae54886 | 2002-12-31 15:47:36 +0000 | [diff] [blame] | 3545 | *Release date: 31-Dec-2002* |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 3546 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3547 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 3548 | -------------------------------------------- |
Guido van Rossum | 8b1e74b | 2002-11-23 16:28:12 +0000 | [diff] [blame] | 3549 | |
Michael W. Hudson | 96bc3b4 | 2002-11-26 14:48:23 +0000 | [diff] [blame] | 3550 | - One can now assign to __bases__ and __name__ of new-style classes. |
| 3551 | |
Guido van Rossum | 8b1e74b | 2002-11-23 16:28:12 +0000 | [diff] [blame] | 3552 | - dict() now accepts keyword arguments so that dict(one=1, two=2) |
| 3553 | is the equivalent of {"one": 1, "two": 2}. Accordingly, |
Just van Rossum | a797d81 | 2002-11-23 09:45:04 +0000 | [diff] [blame] | 3554 | the existing (but undocumented) 'items' keyword argument has |
Guido van Rossum | 8b1e74b | 2002-11-23 16:28:12 +0000 | [diff] [blame] | 3555 | been eliminated. This means that dict(items=someMapping) now has |
Just van Rossum | a797d81 | 2002-11-23 09:45:04 +0000 | [diff] [blame] | 3556 | a different meaning than before. |
| 3557 | |
Walter Dörwald | f171540 | 2002-11-19 20:49:15 +0000 | [diff] [blame] | 3558 | - int() now returns a long object if the argument is outside the |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 3559 | integer range, so int("4" * 1000), int(1e200) and int(1L<<1000) will |
Walter Dörwald | f171540 | 2002-11-19 20:49:15 +0000 | [diff] [blame] | 3560 | all return long objects instead of raising an OverflowError. |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3561 | |
Andrew M. Kuchling | e0373f8 | 2002-11-15 14:42:34 +0000 | [diff] [blame] | 3562 | - Assignment to __class__ is disallowed if either the old or the new |
Guido van Rossum | e343878 | 2002-08-12 03:42:03 +0000 | [diff] [blame] | 3563 | class is a statically allocated type object (such as defined by an |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 3564 | extension module). This prevents anomalies like 2.__class__ = bool. |
Guido van Rossum | e343878 | 2002-08-12 03:42:03 +0000 | [diff] [blame] | 3565 | |
| 3566 | - New-style object creation and deallocation have been sped up |
| 3567 | significantly; they are now faster than classic instance creation |
| 3568 | and deallocation. |
| 3569 | |
| 3570 | - The __slots__ variable can now mention "private" names, and the |
| 3571 | right thing will happen (e.g. __slots__ = ["__foo"]). |
| 3572 | |
| 3573 | - The built-ins slice() and buffer() are now callable types. The |
| 3574 | types classobj (formerly class), code, function, instance, and |
| 3575 | instancemethod (formerly instance-method), which have no built-in |
| 3576 | names but are accessible through the types module, are now also |
| 3577 | callable. The type dict-proxy is renamed to dictproxy. |
| 3578 | |
| 3579 | - Cycles going through the __class__ link of a new-style instance are |
| 3580 | now detected by the garbage collector. |
| 3581 | |
| 3582 | - Classes using __slots__ are now properly garbage collected. |
| 3583 | [SF bug 519621] |
| 3584 | |
| 3585 | - Tightened the __slots__ rules: a slot name must be a valid Python |
| 3586 | identifier. |
| 3587 | |
| 3588 | - The constructor for the module type now requires a name argument and |
| 3589 | takes an optional docstring argument. Previously, this constructor |
| 3590 | ignored its arguments. As a consequence, deriving a class from a |
| 3591 | module (not from the module type) is now illegal; previously this |
| 3592 | created an unnamed module, just like invoking the module type did. |
| 3593 | [SF bug 563060] |
| 3594 | |
| 3595 | - A new type object, 'basestring', is added. This is a common base type |
| 3596 | for 'str' and 'unicode', and can be used instead of |
| 3597 | types.StringTypes, e.g. to test whether something is "a string": |
| 3598 | isinstance(x, basestring) is True for Unicode and 8-bit strings. This |
| 3599 | is an abstract base class and cannot be instantiated directly. |
| 3600 | |
| 3601 | - Changed new-style class instantiation so that when C's __new__ |
| 3602 | method returns something that's not a C instance, its __init__ is |
| 3603 | not called. [SF bug #537450] |
| 3604 | |
| 3605 | - Fixed super() to work correctly with class methods. [SF bug #535444] |
| 3606 | |
| 3607 | - If you try to pickle an instance of a class that has __slots__ but |
| 3608 | doesn't define or override __getstate__, a TypeError is now raised. |
| 3609 | This is done by adding a bozo __getstate__ to the class that always |
| 3610 | raises TypeError. (Before, this would appear to be pickled, but the |
| 3611 | state of the slots would be lost.) |
| 3612 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3613 | Core and builtins |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 3614 | ----------------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3615 | |
Guido van Rossum | a3b8953 | 2002-12-30 22:59:32 +0000 | [diff] [blame] | 3616 | - Import from zipfiles is now supported. The name of a zipfile placed |
Just van Rossum | 01875eb | 2002-12-31 10:22:38 +0000 | [diff] [blame] | 3617 | on sys.path causes the import statement to look for importable Python |
| 3618 | modules (with .py, pyc and .pyo extensions) and packages inside the |
| 3619 | zipfile. The zipfile import follows the specification (though not |
| 3620 | the sample implementation) of PEP 273. The semantics of __path__ are |
Guido van Rossum | a3b8953 | 2002-12-30 22:59:32 +0000 | [diff] [blame] | 3621 | compatible with those that have been implemented in Jython since |
| 3622 | Jython 2.1. |
| 3623 | |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 3624 | - PEP 302 has been accepted. Although it was initially developed to |
Tim Peters | bbc5d16 | 2003-01-02 16:02:27 +0000 | [diff] [blame] | 3625 | support zipimport, it offers a new, general import hook mechanism. |
Just van Rossum | 01875eb | 2002-12-31 10:22:38 +0000 | [diff] [blame] | 3626 | Several new variables have been added to the sys module: |
| 3627 | sys.meta_path, sys.path_hooks, and sys.path_importer_cache; these |
| 3628 | make extending the import statement much more convenient than |
| 3629 | overriding the __import__ built-in function. For a description of |
| 3630 | these, see PEP 302. |
| 3631 | |
Michael W. Hudson | cfd3884 | 2002-12-17 16:15:34 +0000 | [diff] [blame] | 3632 | - A frame object's f_lineno attribute can now be written to from a |
| 3633 | trace function to change which line will execute next. A command to |
| 3634 | exploit this from pdb has been added. [SF patch #643835] |
| 3635 | |
Marc-André Lemburg | 20b9135 | 2002-12-12 18:01:43 +0000 | [diff] [blame] | 3636 | - The _codecs support module for codecs.py was turned into a builtin |
| 3637 | module to assure that at least the builtin codecs are available |
| 3638 | to the Python parser for source code decoding according to PEP 263. |
| 3639 | |
Walter Dörwald | d9a6ad3 | 2002-12-12 16:41:44 +0000 | [diff] [blame] | 3640 | - issubclass now supports a tuple as the second argument, just like |
| 3641 | isinstance does. ``issubclass(X, (A, B))`` is equivalent to |
| 3642 | ``issubclass(X, A) or issubclass(X, B)``. |
| 3643 | |
Tim Peters | b9099c3 | 2002-11-12 22:08:10 +0000 | [diff] [blame] | 3644 | - Thanks to Armin Rigo, the last known way to provoke a system crash |
| 3645 | by cleverly arranging for a comparison function to mutate a list |
| 3646 | during a list.sort() operation has been fixed. The effect of |
| 3647 | attempting to mutate a list, or even to inspect its contents or |
| 3648 | length, while a sort is in progress, is not defined by the language. |
| 3649 | The C implementation of Python 2.3 attempts to detect mutations, |
| 3650 | and raise ValueError if one occurs, but there's no guarantee that |
| 3651 | all mutations will be caught, or that any will be caught across |
| 3652 | releases or implementations. |
| 3653 | |
Martin v. Löwis | a844f2d | 2002-10-05 09:46:48 +0000 | [diff] [blame] | 3654 | - Unicode file name processing for Windows (PEP 277) is implemented. |
Mark Hammond | 8696ebc | 2002-10-08 02:44:31 +0000 | [diff] [blame] | 3655 | All platforms now have an os.path.supports_unicode_filenames attribute, |
| 3656 | which is set to True on Windows NT/2000/XP, and False elsewhere. |
Martin v. Löwis | a844f2d | 2002-10-05 09:46:48 +0000 | [diff] [blame] | 3657 | |
Walter Dörwald | 3aeb632 | 2002-09-02 13:14:32 +0000 | [diff] [blame] | 3658 | - Codec error handling callbacks (PEP 293) are implemented. |
| 3659 | Error handling in unicode.encode or str.decode can now be customized. |
| 3660 | |
Guido van Rossum | 45ec02a | 2002-08-19 21:43:18 +0000 | [diff] [blame] | 3661 | - A subtle change to the semantics of the built-in function intern(): |
| 3662 | interned strings are no longer immortal. You must keep a reference |
| 3663 | to the return value intern() around to get the benefit. |
| 3664 | |
Guido van Rossum | f808b89 | 2002-08-16 03:38:10 +0000 | [diff] [blame] | 3665 | - Use of 'None' as a variable, argument or attribute name now |
| 3666 | issues a SyntaxWarning. In the future, None may become a keyword. |
| 3667 | |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3668 | - SET_LINENO is gone. co_lnotab is now consulted to determine when to |
| 3669 | call the trace function. C code that accessed f_lineno should call |
Michael W. Hudson | cfd3884 | 2002-12-17 16:15:34 +0000 | [diff] [blame] | 3670 | PyCode_Addr2Line instead (f_lineno is still there, but only kept up |
| 3671 | to date when there is a trace function set). |
Michael W. Hudson | dd32a91 | 2002-08-15 14:59:02 +0000 | [diff] [blame] | 3672 | |
Guido van Rossum | 9be8946 | 2002-08-14 16:11:30 +0000 | [diff] [blame] | 3673 | - There's a new warning category, FutureWarning. This is used to warn |
| 3674 | about a number of situations where the value or sign of an integer |
| 3675 | result will change in Python 2.4 as a result of PEP 237 (integer |
| 3676 | unification). The warnings implement stage B0 mentioned in that |
| 3677 | PEP. The warnings are about the following situations: |
| 3678 | |
| 3679 | - Octal and hex literals without 'L' prefix in the inclusive range |
| 3680 | [0x80000000..0xffffffff]; these are currently negative ints, but |
| 3681 | in Python 2.4 they will be positive longs with the same bit |
| 3682 | pattern. |
| 3683 | |
| 3684 | - Left shifts on integer values that cause the outcome to lose |
| 3685 | bits or have a different sign than the left operand. To be |
| 3686 | precise: x<<n where this currently doesn't yield the same value |
| 3687 | as long(x)<<n; in Python 2.4, the outcome will be long(x)<<n. |
| 3688 | |
| 3689 | - Conversions from ints to string that show negative values as |
| 3690 | unsigned ints in the inclusive range [0x80000000..0xffffffff]; |
| 3691 | this affects the functions hex() and oct(), and the string |
| 3692 | formatting codes %u, %o, %x, and %X. In Python 2.4, these will |
| 3693 | show signed values (e.g. hex(-1) currently returns "0xffffffff"; |
| 3694 | in Python 2.4 it will return "-0x1"). |
| 3695 | |
Guido van Rossum | 9a2eda5 | 2002-12-31 02:12:42 +0000 | [diff] [blame] | 3696 | - The bits manipulated under the cover by sys.setcheckinterval() have |
| 3697 | been changed. Both the check interval and the ticker used to be |
| 3698 | per-thread values. They are now just a pair of global variables. |
| 3699 | In addition, the default check interval was boosted from 10 to 100 |
| 3700 | bytecode instructions. This may have some effect on systems that |
| 3701 | relied on the old default value. In particular, in multi-threaded |
| 3702 | applications which try to be highly responsive, response time will |
| 3703 | increase by some (perhaps imperceptible) amount. |
Skip Montanaro | 979c74b | 2002-09-03 21:25:14 +0000 | [diff] [blame] | 3704 | |
Tim Peters | d64c1de | 2002-08-12 17:36:03 +0000 | [diff] [blame] | 3705 | - When multiplying very large integers, a version of the so-called |
| 3706 | Karatsuba algorithm is now used. This is most effective if the |
| 3707 | inputs have roughly the same size. If they both have about N digits, |
| 3708 | Karatsuba multiplication has O(N**1.58) runtime (the exponent is |
| 3709 | log_base_2(3)) instead of the previous O(N**2). Measured results may |
Tim Peters | 012c0a3 | 2002-08-16 03:40:07 +0000 | [diff] [blame] | 3710 | be better or worse than that, depending on platform quirks. Besides |
| 3711 | the O() improvement in raw instruction count, the Karatsuba algorithm |
| 3712 | appears to have much better cache behavior on extremely large integers |
| 3713 | (starting in the ballpark of a million bits). Note that this is a |
| 3714 | simple implementation, and there's no intent here to compete with, |
| 3715 | e.g., GMP. It gives a very nice speedup when it applies, but a package |
| 3716 | devoted to fast large-integer arithmetic should run circles around it. |
Tim Peters | 5af4e6c | 2002-08-12 02:31:19 +0000 | [diff] [blame] | 3717 | |
Marc-André Lemburg | cc8764c | 2002-08-11 12:23:04 +0000 | [diff] [blame] | 3718 | - u'%c' will now raise a ValueError in case the argument is an |
| 3719 | integer outside the valid range of Unicode code point ordinals. |
| 3720 | |
Guido van Rossum | deb0936 | 2002-08-09 17:16:30 +0000 | [diff] [blame] | 3721 | - The tempfile module has been overhauled for enhanced security. The |
| 3722 | mktemp() function is now deprecated; new, safe replacements are |
| 3723 | mkstemp() (for files) and mkdtemp() (for directories), and the |
| 3724 | higher-level functions NamedTemporaryFile() and TemporaryFile(). |
| 3725 | Use of some global variables in this module is also deprecated; the |
| 3726 | new functions have keyword arguments to provide the same |
| 3727 | functionality. All Lib, Tools and Demo modules that used the unsafe |
| 3728 | interfaces have been updated to use the safe replacements. Thanks |
| 3729 | to Zack Weinberg! |
| 3730 | |
Guido van Rossum | d81a983 | 2002-08-09 15:57:34 +0000 | [diff] [blame] | 3731 | - When x is an object whose class implements __mul__ and __rmul__, |
| 3732 | 1.0*x would correctly invoke __rmul__, but 1*x would erroneously |
| 3733 | invoke __mul__. This was due to the sequence-repeat code in the int |
| 3734 | type. This has been fixed now. |
| 3735 | |
Barry Warsaw | d79f683 | 2002-08-06 17:01:51 +0000 | [diff] [blame] | 3736 | - Previously, "str1 in str2" required str1 to be a string of length 1. |
| 3737 | This restriction has been relaxed to allow str1 to be a string of |
| 3738 | any length. Thus "'el' in 'hello world'" returns True now. |
| 3739 | |
Guido van Rossum | b57089c | 2002-08-06 16:20:26 +0000 | [diff] [blame] | 3740 | - File objects are now their own iterators. For a file f, iter(f) now |
| 3741 | returns f (unless f is closed), and f.next() is similar to |
| 3742 | f.readline() when EOF is not reached; however, f.next() uses a |
| 3743 | readahead buffer that messes up the file position, so mixing |
| 3744 | f.next() and f.readline() (or other methods) doesn't work right. |
| 3745 | Calling f.seek() drops the readahead buffer, but other operations |
| 3746 | don't. It so happens that this gives a nice additional speed boost |
| 3747 | to "for line in file:"; the xreadlines method and corresponding |
Guido van Rossum | bffb2ef | 2002-08-09 17:17:07 +0000 | [diff] [blame] | 3748 | module are now obsolete. Thanks to Oren Tirosh! |
Guido van Rossum | b57089c | 2002-08-06 16:20:26 +0000 | [diff] [blame] | 3749 | |
Guido van Rossum | de392d3 | 2002-08-05 14:17:20 +0000 | [diff] [blame] | 3750 | - Encoding declarations (PEP 263, phase 1) have been implemented. A |
| 3751 | comment of the form "# -*- coding: <encodingname> -*-" in the first |
| 3752 | or second line of a Python source file indicates the encoding. |
Martin v. Löwis | 00f1e3f | 2002-08-04 17:29:52 +0000 | [diff] [blame] | 3753 | |
Tim Peters | f47630f | 2002-08-01 02:34:51 +0000 | [diff] [blame] | 3754 | - list.sort() has a new implementation. While cross-platform results |
| 3755 | may vary, and in data-dependent ways, this is much faster on many |
| 3756 | kinds of partially ordered lists than the previous implementation, |
| 3757 | and reported to be just as fast on randomly ordered lists on |
| 3758 | several major platforms. This sort is also stable (if A==B and A |
| 3759 | precedes B in the list at the start, A precedes B after the sort too), |
| 3760 | although the language definition does not guarantee stability. A |
| 3761 | potential drawback is that list.sort() may require temp space of |
Skip Montanaro | a2a07bc | 2002-09-30 15:23:01 +0000 | [diff] [blame] | 3762 | len(list)*2 bytes (``*4`` on a 64-bit machine). It's therefore possible |
Tim Peters | f47630f | 2002-08-01 02:34:51 +0000 | [diff] [blame] | 3763 | for list.sort() to raise MemoryError now, even if a comparison function |
| 3764 | does not. See <http://www.python.org/sf/587076> for full details. |
| 3765 | |
Guido van Rossum | 2d5389c | 2002-07-23 03:44:35 +0000 | [diff] [blame] | 3766 | - All standard iterators now ensure that, once StopIteration has been |
| 3767 | raised, all future calls to next() on the same iterator will also |
| 3768 | raise StopIteration. There used to be various counterexamples to |
| 3769 | this behavior, which could caused confusion or subtle program |
| 3770 | breakage, without any benefits. (Note that this is still an |
| 3771 | iterator's responsibility; the iterator framework does not enforce |
| 3772 | this.) |
| 3773 | |
Mark Hammond | c0e3515 | 2002-07-16 01:32:30 +0000 | [diff] [blame] | 3774 | - Ctrl+C handling on Windows has been made more consistent with |
| 3775 | other platforms. KeyboardInterrupt can now reliably be caught, |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 3776 | and Ctrl+C at an interactive prompt no longer terminates the |
Mark Hammond | c0e3515 | 2002-07-16 01:32:30 +0000 | [diff] [blame] | 3777 | process under NT/2k/XP (it never did under Win9x). Ctrl+C will |
Tim Peters | 5af4e6c | 2002-08-12 02:31:19 +0000 | [diff] [blame] | 3778 | interrupt time.sleep() in the main thread, and any child processes |
| 3779 | created via the popen family (on win2k; we can't make win9x work |
Mark Hammond | 8f3afc7 | 2002-08-10 06:26:31 +0000 | [diff] [blame] | 3780 | reliably) are also interrupted (as generally happens on for Linux/Unix.) |
| 3781 | [SF bugs 231273, 439992 and 581232] |
Mark Hammond | c0e3515 | 2002-07-16 01:32:30 +0000 | [diff] [blame] | 3782 | |
Mark Hammond | 8696ebc | 2002-10-08 02:44:31 +0000 | [diff] [blame] | 3783 | - sys.getwindowsversion() has been added on Windows. This |
| 3784 | returns a tuple with information about the version of Windows |
| 3785 | currently running. |
| 3786 | |
Raymond Hettinger | 5a04aec | 2002-06-25 00:25:30 +0000 | [diff] [blame] | 3787 | - Slices and repetitions of buffer objects now consistently return |
| 3788 | a string. Formerly, strings would be returned most of the time, |
| 3789 | but a buffer object would be returned when the repetition count |
| 3790 | was one or when the slice range was all inclusive. |
| 3791 | |
Walter Dörwald | 3430d70 | 2002-06-17 10:43:59 +0000 | [diff] [blame] | 3792 | - Unicode objects in sys.path are no longer ignored but treated |
| 3793 | as directory names. |
| 3794 | |
Neal Norwitz | 1f68fc7 | 2002-06-14 00:50:42 +0000 | [diff] [blame] | 3795 | - Fixed string.startswith and string.endswith builtin methods |
| 3796 | so they accept negative indices. [SF bug 493951] |
| 3797 | |
Guido van Rossum | c5fe5eb | 2002-06-12 03:45:21 +0000 | [diff] [blame] | 3798 | - Fixed a bug with a continue inside a try block and a yield in the |
| 3799 | finally clause. [SF bug 567538] |
| 3800 | |
Michael W. Hudson | 5efaf7e | 2002-06-11 10:55:12 +0000 | [diff] [blame] | 3801 | - Most builtin sequences now support "extended slices", i.e. slices |
Guido van Rossum | 2e82e71 | 2002-06-13 11:41:07 +0000 | [diff] [blame] | 3802 | with a third "stride" parameter. For example, "hello world"[::-1] |
| 3803 | gives "dlrow olleh". |
Michael W. Hudson | 5efaf7e | 2002-06-11 10:55:12 +0000 | [diff] [blame] | 3804 | |
Neal Norwitz | d68f517 | 2002-05-29 15:54:55 +0000 | [diff] [blame] | 3805 | - A new warning PendingDeprecationWarning was added to provide |
| 3806 | direction on features which are in the process of being deprecated. |
| 3807 | The warning will not be printed by default. To see the pending |
| 3808 | deprecations, use -Walways::PendingDeprecationWarning:: |
| 3809 | as a command line option or warnings.filterwarnings() in code. |
| 3810 | |
Fred Drake | d0ba636 | 2002-05-02 21:28:26 +0000 | [diff] [blame] | 3811 | - Deprecated features of xrange objects have been removed as |
| 3812 | promised. The start, stop, and step attributes and the tolist() |
| 3813 | method no longer exist. xrange repetition and slicing have been |
| 3814 | removed. |
| 3815 | |
Guido van Rossum | 7dab242 | 2002-04-26 19:40:56 +0000 | [diff] [blame] | 3816 | - New builtin function enumerate(x), from PEP 279. Example: |
| 3817 | enumerate("abc") is an iterator returning (0,"a"), (1,"b"), (2,"c"). |
| 3818 | The argument can be an arbitrary iterable object. |
| 3819 | |
Neil Schemenauer | 89e3ee0 | 2002-04-26 01:58:53 +0000 | [diff] [blame] | 3820 | - The assert statement no longer tests __debug__ at runtime. This means |
| 3821 | that assert statements cannot be disabled by assigning a false value |
| 3822 | to __debug__. |
| 3823 | |
Walter Dörwald | 068325e | 2002-04-15 13:36:47 +0000 | [diff] [blame] | 3824 | - A method zfill() was added to str and unicode, that fills a numeric |
| 3825 | string to the left with zeros. For example, |
| 3826 | "+123".zfill(6) -> "+00123". |
| 3827 | |
Guido van Rossum | 862fe3c | 2002-04-15 12:36:47 +0000 | [diff] [blame] | 3828 | - Complex numbers supported divmod() and the // and % operators, but |
| 3829 | these make no sense. Since this was documented, they're being |
| 3830 | deprecated now. |
| 3831 | |
Guido van Rossum | 26dd830 | 2002-04-26 20:11:29 +0000 | [diff] [blame] | 3832 | - String and unicode methods lstrip(), rstrip() and strip() now take |
| 3833 | an optional argument that specifies the characters to strip. For |
| 3834 | example, "Foo!!!?!?!?".rstrip("?!") -> "Foo". |
Guido van Rossum | 4904204 | 2002-04-13 00:59:05 +0000 | [diff] [blame] | 3835 | |
Guido van Rossum | c0d3f4e | 2002-11-27 13:10:40 +0000 | [diff] [blame] | 3836 | - There's a new dictionary constructor (a class method of the dict |
| 3837 | class), dict.fromkeys(iterable, value=None). It constructs a |
| 3838 | dictionary with keys taken from the iterable and all values set to a |
| 3839 | single value. It can be used for building sets and for removing |
| 3840 | duplicates from sequences. |
Raymond Hettinger | e33d3df | 2002-11-27 07:29:33 +0000 | [diff] [blame] | 3841 | |
Guido van Rossum | c69343b | 2002-04-12 19:22:48 +0000 | [diff] [blame] | 3842 | - Added a new dict method pop(key). This removes and returns the |
| 3843 | value corresponding to key. [SF patch #539949] |
| 3844 | |
Guido van Rossum | 4783446 | 2002-04-04 15:21:33 +0000 | [diff] [blame] | 3845 | - A new built-in type, bool, has been added, as well as built-in |
| 3846 | names for its two values, True and False. Comparisons and sundry |
| 3847 | other operations that return a truth value have been changed to |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 3848 | return a bool instead. Read PEP 285 for an explanation of why this |
Guido van Rossum | 4783446 | 2002-04-04 15:21:33 +0000 | [diff] [blame] | 3849 | is backward compatible. |
| 3850 | |
Guido van Rossum | 95b62a6 | 2002-03-29 01:07:24 +0000 | [diff] [blame] | 3851 | - Fixed two bugs reported as SF #535905: under certain conditions, |
| 3852 | deallocating a deeply nested structure could cause a segfault in the |
| 3853 | garbage collector, due to interaction with the "trashcan" code; |
| 3854 | access to the current frame during destruction of a local variable |
| 3855 | could access a pointer to freed memory. |
| 3856 | |
Guido van Rossum | fe0ca4a | 2002-06-18 21:20:13 +0000 | [diff] [blame] | 3857 | - The optional object allocator ("pymalloc") has been enabled by |
| 3858 | default. The recommended practice for memory allocation and |
| 3859 | deallocation has been streamlined. A header file is included, |
| 3860 | Misc/pymemcompat.h, which can be bundled with 3rd party extensions |
| 3861 | and lets them use the same API with Python versions from 1.5.2 |
| 3862 | onwards. |
Neil Schemenauer | 9d50d13 | 2002-03-22 17:06:59 +0000 | [diff] [blame] | 3863 | |
Martin v. Löwis | cfeb3b6 | 2002-03-03 21:30:27 +0000 | [diff] [blame] | 3864 | - PyErr_Display will provide file and line information for all exceptions |
| 3865 | that have an attribute print_file_and_line, not just SyntaxErrors. |
| 3866 | |
Marc-André Lemburg | e92e0a9 | 2002-02-09 11:28:43 +0000 | [diff] [blame] | 3867 | - The UTF-8 codec will now encode and decode Unicode surrogates |
| 3868 | correctly and without raising exceptions for unpaired ones. |
| 3869 | |
Guido van Rossum | add8806 | 2002-08-15 14:01:14 +0000 | [diff] [blame] | 3870 | - Universal newlines (PEP 278) is implemented. Briefly, using 'U' |
| 3871 | instead of 'r' when opening a text file for reading changes the line |
| 3872 | ending convention so that any of '\r', '\r\n', and '\n' is |
| 3873 | recognized (even mixed in one file); all three are converted to |
| 3874 | '\n', the standard Python line end character. |
| 3875 | |
Neal Norwitz | 649b759 | 2002-01-01 19:07:13 +0000 | [diff] [blame] | 3876 | - file.xreadlines() now raises a ValueError if the file is closed: |
| 3877 | Previously, an xreadlines object was returned which would raise |
| 3878 | a ValueError when the xreadlines.next() method was called. |
| 3879 | |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 3880 | - sys.exit() inadvertently allowed more than one argument. |
Neal Norwitz | 0c766a0 | 2002-03-27 13:03:09 +0000 | [diff] [blame] | 3881 | An exception will now be raised if more than one argument is used. |
| 3882 | |
Gustavo Niemeyer | 17c5a33 | 2002-12-16 14:09:22 +0000 | [diff] [blame] | 3883 | - Changed evaluation order of dictionary literals to conform to the |
| 3884 | general left to right evaluation order rule. Now {f1(): f2()} will |
| 3885 | evaluate f1 first. |
Gustavo Niemeyer | 78429a6 | 2002-12-16 13:54:02 +0000 | [diff] [blame] | 3886 | |
Gustavo Niemeyer | 786ddb2 | 2002-12-16 18:12:53 +0000 | [diff] [blame] | 3887 | - Fixed bug #521782: when a file was in non-blocking mode, file.read() |
| 3888 | could silently lose data or wrongly throw an unknown error. |
| 3889 | |
Neil Schemenauer | b983aa0 | 2002-12-30 20:22:23 +0000 | [diff] [blame] | 3890 | - The sq_repeat, sq_inplace_repeat, sq_concat and sq_inplace_concat |
| 3891 | slots are now always tried after trying the corresponding nb_* slots. |
| 3892 | This fixes a number of minor bugs (see bug #624807). |
| 3893 | |
Neal Norwitz | 74a032e | 2003-01-10 23:29:48 +0000 | [diff] [blame] | 3894 | - Fix problem with dynamic loading on 64-bit AIX (see bug #639945). |
| 3895 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3896 | Extension modules |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 3897 | ----------------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 3898 | |
Raymond Hettinger | 9543b34 | 2003-01-18 23:22:20 +0000 | [diff] [blame] | 3899 | - Added three operators to the operator module: |
| 3900 | operator.pow(a,b) which is equivalent to: a**b. |
| 3901 | operator.is_(a,b) which is equivalent to: a is b. |
| 3902 | operator.is_not(a,b) which is equivalent to: a is not b. |
| 3903 | |
Martin v. Löwis | 24a880b | 2002-12-31 12:55:15 +0000 | [diff] [blame] | 3904 | - posix.openpty now works on all systems that have /dev/ptmx. |
| 3905 | |
Guido van Rossum | a3b8953 | 2002-12-30 22:59:32 +0000 | [diff] [blame] | 3906 | - A module zipimport exists to support importing code from zip |
| 3907 | archives. |
| 3908 | |
Tim Peters | e820cb6 | 2002-12-16 20:57:22 +0000 | [diff] [blame] | 3909 | - The new datetime module supplies classes for manipulating dates and |
| 3910 | times. The basic design came from the Zope "fishbowl process", and |
| 3911 | favors practical commercial applications over calendar esoterica. See |
| 3912 | |
| 3913 | http://www.zope.org/Members/fdrake/DateTimeWiki/FrontPage |
| 3914 | |
Martin v. Löwis | ffad633 | 2002-11-26 09:28:05 +0000 | [diff] [blame] | 3915 | - _tkinter now returns Tcl objects, instead of strings. Objects which |
| 3916 | have Python equivalents are converted to Python objects, other objects |
| 3917 | are wrapped. This can be configured through the wantobjects method, |
Martin v. Löwis | 8c8aa5d | 2002-11-26 21:39:48 +0000 | [diff] [blame] | 3918 | or Tkinter.wantobjects. |
Martin v. Löwis | ffad633 | 2002-11-26 09:28:05 +0000 | [diff] [blame] | 3919 | |
Barry Warsaw | c27f4bd | 2002-12-30 21:03:26 +0000 | [diff] [blame] | 3920 | - The PyBSDDB wrapper around the Sleepycat Berkeley DB library has |
| 3921 | been added as the package bsddb. The traditional bsddb module is |
| 3922 | still available in source code, but not built automatically anymore, |
| 3923 | and is now named bsddb185. This supports Berkeley DB versions from |
Skip Montanaro | 13b2910 | 2003-02-03 15:17:25 +0000 | [diff] [blame] | 3924 | 3.0 to 4.1. For help converting your databases from the old module (which |
| 3925 | probably used an obsolete version of Berkeley DB) to the new module, see |
| 3926 | the db2pickle.py and pickle2db.py scripts described in the Tools/Demos |
| 3927 | section above. |
Martin v. Löwis | ef546b3 | 2002-11-19 08:12:57 +0000 | [diff] [blame] | 3928 | |
Martin v. Löwis | 677bde2 | 2002-11-23 22:08:15 +0000 | [diff] [blame] | 3929 | - unicodedata was updated to Unicode 3.2. It supports normalization |
| 3930 | and names for Hangul syllables and CJK unified ideographs. |
Martin v. Löwis | 7d41e29 | 2002-11-23 12:22:32 +0000 | [diff] [blame] | 3931 | |
Neal Norwitz | 94a83fd | 2002-11-02 17:46:24 +0000 | [diff] [blame] | 3932 | - resource.getrlimit() now returns longs instead of ints. |
| 3933 | |
Martin v. Löwis | 080689c | 2002-10-26 14:42:02 +0000 | [diff] [blame] | 3934 | - readline now dynamically adjusts its input/output stream if |
| 3935 | sys.stdin/stdout changes. |
| 3936 | |
Guido van Rossum | ba60297 | 2002-10-01 18:18:58 +0000 | [diff] [blame] | 3937 | - The _tkinter module (and hence Tkinter) has dropped support for |
| 3938 | Tcl/Tk 8.0 and 8.1. Only Tcl/Tk versions 8.2, 8.3 and 8.4 are |
| 3939 | supported. |
| 3940 | |
Martin v. Löwis | 658009a | 2002-09-16 17:26:24 +0000 | [diff] [blame] | 3941 | - cPickle.BadPickleGet is now a class. |
| 3942 | |
Martin v. Löwis | a19bfe0 | 2002-10-16 18:28:36 +0000 | [diff] [blame] | 3943 | - The time stamps in os.stat_result are floating point numbers |
| 3944 | after stat_float_times has been called. |
Martin v. Löwis | 94717ed | 2002-09-09 14:24:16 +0000 | [diff] [blame] | 3945 | |
Neal Norwitz | b567392 | 2002-09-05 21:48:07 +0000 | [diff] [blame] | 3946 | - If the size passed to mmap.mmap() is larger than the length of the |
| 3947 | file on non-Windows platforms, a ValueError is raised. [SF bug 585792] |
| 3948 | |
Guido van Rossum | b57089c | 2002-08-06 16:20:26 +0000 | [diff] [blame] | 3949 | - The xreadlines module is slated for obsolescence. |
| 3950 | |
Guido van Rossum | 79f0a10 | 2002-07-23 03:32:08 +0000 | [diff] [blame] | 3951 | - The strptime function in the time module is now always available (a |
| 3952 | Python implementation is used when the C library doesn't define it). |
| 3953 | |
Guido van Rossum | 9562bcf | 2002-06-14 21:31:18 +0000 | [diff] [blame] | 3954 | - The 'new' module is no longer an extension, but a Python module that |
| 3955 | only exists for backwards compatibility. Its contents are no longer |
| 3956 | functions but callable type objects. |
| 3957 | |
Tim Peters | 81b9251 | 2002-04-29 01:37:32 +0000 | [diff] [blame] | 3958 | - The bsddb.*open functions can now take 'None' as a filename. |
Anthony Baxter | 8388895 | 2002-04-23 02:11:05 +0000 | [diff] [blame] | 3959 | This will create a temporary in-memory bsddb that won't be |
Tim Peters | 81b9251 | 2002-04-29 01:37:32 +0000 | [diff] [blame] | 3960 | written to disk. |
Anthony Baxter | 8388895 | 2002-04-23 02:11:05 +0000 | [diff] [blame] | 3961 | |
Martin v. Löwis | b96152c | 2002-12-31 13:20:15 +0000 | [diff] [blame] | 3962 | - posix.getloadavg, posix.lchown, posix.killpg, posix.mknod, and |
| 3963 | posix.getpgid have been added where available. |
Martin v. Löwis | 06a83e9 | 2002-04-14 10:19:44 +0000 | [diff] [blame] | 3964 | |
Martin v. Löwis | f0a4668 | 2002-11-03 17:20:12 +0000 | [diff] [blame] | 3965 | - The locale module now exposes the C library's gettext interface. It |
| 3966 | also has a new function getpreferredencoding. |
Martin v. Löwis | 2e64c34 | 2002-03-27 18:49:02 +0000 | [diff] [blame] | 3967 | |
Tim Peters | fbf74f2 | 2002-03-14 19:06:01 +0000 | [diff] [blame] | 3968 | - A security hole ("double free") was found in zlib-1.1.3, a popular |
| 3969 | third party compression library used by some Python modules. The |
| 3970 | hole was quickly plugged in zlib-1.1.4, and the Windows build of |
| 3971 | Python now ships with zlib-1.1.4. |
| 3972 | |
Martin v. Löwis | 688357e | 2002-04-08 21:28:20 +0000 | [diff] [blame] | 3973 | - pwd, grp, and resource return enhanced tuples now, with symbolic |
| 3974 | field names. |
Martin v. Löwis | 29001ff | 2002-03-01 10:47:37 +0000 | [diff] [blame] | 3975 | |
Martin v. Löwis | 9986633 | 2002-03-01 10:27:01 +0000 | [diff] [blame] | 3976 | - array.array is now a type object. A new format character |
| 3977 | 'u' indicates Py_UNICODE arrays. For those, .tounicode and |
| 3978 | .fromunicode methods are available. Arrays now support __iadd__ |
| 3979 | and __imul__. |
| 3980 | |
Neal Norwitz | e790eae | 2002-01-01 21:14:12 +0000 | [diff] [blame] | 3981 | - dl now builds on every system that has dlfcn.h. Failure in case |
Martin v. Löwis | 9322727 | 2002-01-01 20:18:30 +0000 | [diff] [blame] | 3982 | of sizeof(int)!=sizeof(long)!=sizeof(void*) is delayed until dl.open |
| 3983 | is called. |
| 3984 | |
Skip Montanaro | 8e790e7 | 2002-09-03 13:25:17 +0000 | [diff] [blame] | 3985 | - The sys module acquired a new attribute, api_version, which evaluates |
| 3986 | to the value of the PYTHON_API_VERSION macro with which the |
| 3987 | interpreter was compiled. |
| 3988 | |
Gustavo Niemeyer | 4e7be06 | 2002-11-06 14:06:53 +0000 | [diff] [blame] | 3989 | - Fixed bug #470582: sre module would return a tuple (None, 'a', 'ab') |
| 3990 | when applying the regular expression '^((a)c)?(ab)$' on 'ab'. It now |
| 3991 | returns (None, None, 'ab'), as expected. Also fixed handling of |
Gustavo Niemeyer | fbceb01 | 2002-11-06 18:44:26 +0000 | [diff] [blame] | 3992 | lastindex/lastgroup match attributes in similar cases. For example, |
Gustavo Niemeyer | 4e7be06 | 2002-11-06 14:06:53 +0000 | [diff] [blame] | 3993 | when running the expression r'(a)(b)?b' over 'ab', lastindex must be |
| 3994 | 1, not 2. |
| 3995 | |
Gustavo Niemeyer | c523b04 | 2002-11-07 03:28:56 +0000 | [diff] [blame] | 3996 | - Fixed bug #581080: sre scanner was not checking the buffer limit |
| 3997 | before increasing the current pointer. This was creating an infinite |
| 3998 | loop in the search function, once the pointer exceeded the buffer |
| 3999 | limit. |
| 4000 | |
Thomas Heller | 95cb7e4 | 2002-11-07 16:23:55 +0000 | [diff] [blame] | 4001 | - The os.fdopen function now enforces a file mode starting with the |
| 4002 | letter 'r', 'w' or 'a', otherwise a ValueError is raised. This fixes |
| 4003 | bug #623464. |
| 4004 | |
Greg Ward | 6c58d46 | 2003-01-03 18:02:15 +0000 | [diff] [blame] | 4005 | - The linuxaudiodev module is now deprecated; it is being replaced by |
| 4006 | ossaudiodev. The interface has been extended to cover a lot more of |
| 4007 | OSS (see www.opensound.com), including most DSP ioctls and the |
| 4008 | OSS mixer API. Documentation forthcoming in 2.3a2. |
| 4009 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4010 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4011 | ------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4012 | |
Guido van Rossum | 747f806 | 2003-01-03 16:33:49 +0000 | [diff] [blame] | 4013 | - imaplib.py now supports SSL (Tino Lange and Piers Lauder). |
| 4014 | |
Just van Rossum | 5e156ad | 2002-12-31 16:38:01 +0000 | [diff] [blame] | 4015 | - Freeze's modulefinder.py has been moved to the standard library; |
| 4016 | slightly improved so it will issue less false missing submodule |
| 4017 | reports (see sf path #643711 for details). Documentation will follow |
| 4018 | with Python 2.3a2. |
| 4019 | |
Martin v. Löwis | 96a60e4 | 2002-12-31 13:11:54 +0000 | [diff] [blame] | 4020 | - os.path exposes getctime. |
| 4021 | |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4022 | - unittest.py now has two additional methods called assertAlmostEqual() |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4023 | and failIfAlmostEqual(). They implement an approximate comparison |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4024 | by rounding the difference between the two arguments and comparing |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4025 | the result to zero. Approximate comparison is essential for |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4026 | unit tests of floating point results. |
| 4027 | |
Raymond Hettinger | e11b510 | 2002-12-25 16:37:19 +0000 | [diff] [blame] | 4028 | - calendar.py now depends on the new datetime module rather than |
| 4029 | the time module. As a result, the range of allowable dates |
| 4030 | has been increased. |
| 4031 | |
Michael W. Hudson | cfd3884 | 2002-12-17 16:15:34 +0000 | [diff] [blame] | 4032 | - pdb has a new 'j(ump)' command to select the next line to be |
| 4033 | executed. |
| 4034 | |
Thomas Heller | 1b3b49d | 2002-12-12 19:13:44 +0000 | [diff] [blame] | 4035 | - The distutils created windows installers now can run a |
| 4036 | postinstallation script. |
| 4037 | |
Martin v. Löwis | 4581cfa | 2002-11-22 08:23:09 +0000 | [diff] [blame] | 4038 | - doctest.testmod can now be called without argument, which means to |
| 4039 | test the current module. |
| 4040 | |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4041 | - When canceling a server that implemented threading with a keyboard |
Martin v. Löwis | f86e8ef | 2002-11-22 08:08:44 +0000 | [diff] [blame] | 4042 | interrupt, the server would shut down but not terminate (waiting on |
| 4043 | client threads). A new member variable, daemon_threads, was added to |
| 4044 | the ThreadingMixIn class in SocketServer.py to make it explicit that |
| 4045 | this behavior needs to be controlled. |
| 4046 | |
Guido van Rossum | 545c250 | 2002-11-15 13:19:58 +0000 | [diff] [blame] | 4047 | - A new module, optparse, provides a fancy alternative to getopt for |
Andrew M. Kuchling | e0373f8 | 2002-11-15 14:42:34 +0000 | [diff] [blame] | 4048 | command line parsing. It is a slightly modified version of Greg |
Guido van Rossum | 545c250 | 2002-11-15 13:19:58 +0000 | [diff] [blame] | 4049 | Ward's Optik package. |
| 4050 | |
Raymond Hettinger | 7994716 | 2002-11-15 06:46:14 +0000 | [diff] [blame] | 4051 | - UserDict.py now defines a DictMixin class which defines all dictionary |
| 4052 | methods for classes that already have a minimum mapping interface. |
| 4053 | This greatly simplifies writing classes that need to be substitutable |
| 4054 | for dictionaries (such as the shelve module). |
| 4055 | |
| 4056 | - shelve.py now subclasses from UserDict.DictMixin. Now shelve supports |
| 4057 | all dictionary methods. This eases the transition to persistent |
Andrew M. Kuchling | e0373f8 | 2002-11-15 14:42:34 +0000 | [diff] [blame] | 4058 | storage for scripts originally written with dictionaries in mind. |
Raymond Hettinger | 7994716 | 2002-11-15 06:46:14 +0000 | [diff] [blame] | 4059 | |
Skip Montanaro | 3bf99e3 | 2002-12-08 18:36:24 +0000 | [diff] [blame] | 4060 | - shelve.open and the various classes in shelve.py now accept an optional |
| 4061 | binary flag, which defaults to False. If True, the values stored in the |
| 4062 | shelf are binary pickles. |
| 4063 | |
Guido van Rossum | fda0674 | 2002-11-13 16:29:18 +0000 | [diff] [blame] | 4064 | - A new package, logging, implements the logging API defined by PEP |
| 4065 | 282. The code is written by Vinay Sajip. |
| 4066 | |
Walter Dörwald | 4dbf192 | 2002-11-06 16:53:44 +0000 | [diff] [blame] | 4067 | - StreamReader, StreamReaderWriter and StreamRecoder in the codecs |
| 4068 | modules are iterators now. |
| 4069 | |
Tim Peters | 9288f95 | 2002-11-05 20:38:55 +0000 | [diff] [blame] | 4070 | - gzip.py now handles files exceeding 2GB. Files over 4GB also work |
| 4071 | now (provided the OS supports it, and Python is configured with large |
| 4072 | file support), but in that case the underlying gzip file format can |
| 4073 | record only the least-significant 32 bits of the file size, so that |
| 4074 | some tools working with gzipped files may report an incorrect file |
| 4075 | size. |
Tim Peters | fb0ea52 | 2002-11-04 19:50:11 +0000 | [diff] [blame] | 4076 | |
Martin v. Löwis | 74b51ac | 2002-10-26 14:50:45 +0000 | [diff] [blame] | 4077 | - xml.sax.saxutils.unescape has been added, to replace entity references |
| 4078 | with their entity value. |
| 4079 | |
Martin v. Löwis | 77ac429 | 2002-10-15 15:11:13 +0000 | [diff] [blame] | 4080 | - Queue.Queue.{put,get} now support an optional timeout argument. |
| 4081 | |
Martin v. Löwis | b24e347 | 2002-10-13 10:28:04 +0000 | [diff] [blame] | 4082 | - Various features of Tk 8.4 are exposed in Tkinter.py. The multiple |
| 4083 | option of tkFileDialog is exposed as function askopenfile{,name}s. |
Martin v. Löwis | 2ec3627 | 2002-10-13 10:22:08 +0000 | [diff] [blame] | 4084 | |
Martin v. Löwis | b24e347 | 2002-10-13 10:28:04 +0000 | [diff] [blame] | 4085 | - Various configure methods of Tkinter have been stream-lined, so that |
| 4086 | tag_configure, image_configure, window_configure now return a |
Tim Peters | fb0ea52 | 2002-11-04 19:50:11 +0000 | [diff] [blame] | 4087 | dictionary when invoked with no argument. |
Martin v. Löwis | 6ce1315 | 2002-10-10 14:36:13 +0000 | [diff] [blame] | 4088 | |
Guido van Rossum | 2b492b6 | 2002-10-09 21:40:48 +0000 | [diff] [blame] | 4089 | - Importing the readline module now no longer has the side effect of |
| 4090 | calling setlocale(LC_CTYPE, ""). The initial "C" locale, or |
| 4091 | whatever locale is explicitly set by the user, is preserved. If you |
| 4092 | want repr() of 8-bit strings in your preferred encoding to preserve |
| 4093 | all printable characters of that encoding, you have to add the |
| 4094 | following code to your $PYTHONSTARTUP file or to your application's |
| 4095 | main(): |
| 4096 | |
| 4097 | import locale |
| 4098 | locale.setlocale(locale.LC_CTYPE, "") |
| 4099 | |
Martin v. Löwis | e9ce0b0 | 2002-10-07 13:23:24 +0000 | [diff] [blame] | 4100 | - shutil.move was added. shutil.copytree now reports errors as an |
| 4101 | exception at the end, instead of printing error messages. |
| 4102 | |
Marc-André Lemburg | 97047e2 | 2002-10-04 11:55:21 +0000 | [diff] [blame] | 4103 | - Encoding name normalization was generalized to not only |
| 4104 | replace hyphens with underscores, but also all other non-alphanumeric |
| 4105 | characters (with the exception of the dot which is used for Python |
| 4106 | package names during lookup). The aliases.py mapping was updated |
| 4107 | to the new standard. |
| 4108 | |
Walter Dörwald | 5ccaf8f | 2002-09-06 16:15:58 +0000 | [diff] [blame] | 4109 | - mimetypes has two new functions: guess_all_extensions() which |
| 4110 | returns a list of all known extensions for a mime type, and |
| 4111 | add_type() which adds one mapping between a mime type and |
| 4112 | an extension to the database. |
| 4113 | |
Guido van Rossum | d8ab35c | 2002-08-19 16:25:46 +0000 | [diff] [blame] | 4114 | - New module: sets, defines the class Set that implements a mutable |
| 4115 | set type using the keys of a dict to represent the set. There's |
| 4116 | also a class ImmutableSet which is useful when you need sets of sets |
| 4117 | or when you need to use sets as dict keys, and a class BaseSet which |
Raymond Hettinger | ef8b9c6 | 2002-12-09 08:56:06 +0000 | [diff] [blame] | 4118 | is the base class of the two. |
Guido van Rossum | d8ab35c | 2002-08-19 16:25:46 +0000 | [diff] [blame] | 4119 | |
Raymond Hettinger | f24eb35 | 2002-11-12 17:41:57 +0000 | [diff] [blame] | 4120 | - Added random.sample(population,k) for random sampling without replacement. |
Tim Peters | b9099c3 | 2002-11-12 22:08:10 +0000 | [diff] [blame] | 4121 | Returns a k length list of unique elements chosen from the population. |
Raymond Hettinger | f24eb35 | 2002-11-12 17:41:57 +0000 | [diff] [blame] | 4122 | |
Tim Peters | 012c0a3 | 2002-08-16 03:40:07 +0000 | [diff] [blame] | 4123 | - random.randrange(-sys.maxint-1, sys.maxint) no longer raises |
| 4124 | OverflowError. That is, it now accepts any combination of 'start' |
| 4125 | and 'stop' arguments so long as each is in the range of Python's |
| 4126 | bounded integers. |
| 4127 | |
Raymond Hettinger | 40f6217 | 2002-12-29 23:03:38 +0000 | [diff] [blame] | 4128 | - Thanks to Raymond Hettinger, random.random() now uses a new core |
| 4129 | generator. The Mersenne Twister algorithm is implemented in C, |
| 4130 | threadsafe, faster than the previous generator, has an astronomically |
| 4131 | large period (2**19937-1), creates random floats to full 53-bit |
| 4132 | precision, and may be the most widely tested random number generator |
| 4133 | in existence. |
| 4134 | |
| 4135 | The random.jumpahead(n) method has different semantics for the new |
| 4136 | generator. Instead of jumping n steps ahead, it uses n and the |
| 4137 | existing state to create a new state. This means that jumpahead() |
| 4138 | continues to support multi-threaded code needing generators of |
| 4139 | non-overlapping sequences. However, it will break code which relies |
| 4140 | on jumpahead moving a specific number of steps forward. |
| 4141 | |
| 4142 | The attributes random.whseed and random.__whseed have no meaning for |
| 4143 | the new generator. Code using these attributes should switch to a |
| 4144 | new class, random.WichmannHill which is provided for backward |
| 4145 | compatibility and to make an alternate generator available. |
| 4146 | |
Guido van Rossum | 4a57c33 | 2002-08-02 18:05:20 +0000 | [diff] [blame] | 4147 | - New "algorithms" module: heapq, implements a heap queue. Thanks to |
| 4148 | Kevin O'Connor for the code and François Pinard for an entertaining |
| 4149 | write-up explaining the theory and practical uses of heaps. |
| 4150 | |
Marc-André Lemburg | 58e2ff2 | 2002-07-12 14:40:04 +0000 | [diff] [blame] | 4151 | - New encoding for the Palm OS character set: palmos. |
| 4152 | |
Tim Peters | 943382c | 2002-07-07 03:59:34 +0000 | [diff] [blame] | 4153 | - binascii.crc32() and the zipfile module had problems on some 64-bit |
| 4154 | platforms. These have been fixed. On a platform with 8-byte C longs, |
| 4155 | crc32() now returns a signed-extended 4-byte result, so that its value |
| 4156 | as a Python int is equal to the value computed a 32-bit platform. |
| 4157 | |
Martin v. Löwis | 7d650ca | 2002-06-30 15:05:00 +0000 | [diff] [blame] | 4158 | - xml.dom.minidom.toxml and toprettyxml now take an optional encoding |
| 4159 | argument. |
| 4160 | |
Guido van Rossum | 9f7549b | 2002-06-10 21:39:42 +0000 | [diff] [blame] | 4161 | - Some fixes in the copy module: when an object is copied through its |
| 4162 | __reduce__ method, there was no check for a __setstate__ method on |
| 4163 | the result [SF patch 565085]; deepcopy should treat instances of |
| 4164 | custom metaclasses the same way it treats instances of type 'type' |
| 4165 | [SF patch 560794]. |
| 4166 | |
Guido van Rossum | 5033c8e | 2002-06-07 12:40:52 +0000 | [diff] [blame] | 4167 | - Sockets now support timeout mode. After s.settimeout(T), where T is |
| 4168 | a float expressing seconds, subsequent operations raise an exception |
| 4169 | if they cannot be completed within T seconds. To disable timeout |
Guido van Rossum | 79f0a10 | 2002-07-23 03:32:08 +0000 | [diff] [blame] | 4170 | mode, use s.settimeout(None). There's also a module function, |
| 4171 | socket.setdefaulttimeout(T), which sets the default for all sockets |
| 4172 | created henceforth. |
Guido van Rossum | 5033c8e | 2002-06-07 12:40:52 +0000 | [diff] [blame] | 4173 | |
| 4174 | - getopt.gnu_getopt was added. This supports GNU-style option |
| 4175 | processing, where options can be mixed with non-option arguments. |
Martin v. Löwis | 446a25f | 2002-06-06 10:58:36 +0000 | [diff] [blame] | 4176 | |
Michael W. Hudson | b0dc1a3 | 2002-06-04 18:27:35 +0000 | [diff] [blame] | 4177 | - Stop using strings for exceptions. String objects used for |
| 4178 | exceptions are now classes deriving from Exception. The objects |
| 4179 | changed were: Tkinter.TclError, bdb.BdbQuit, macpath.norm_error, |
| 4180 | tabnanny.NannyNag, and xdrlib.Error. |
Neal Norwitz | b5b5a26 | 2002-06-04 17:14:07 +0000 | [diff] [blame] | 4181 | |
Walter Dörwald | 474458d | 2002-06-04 15:16:29 +0000 | [diff] [blame] | 4182 | - Constants BOM_UTF8, BOM_UTF16, BOM_UTF16_LE, BOM_UTF16_BE, |
| 4183 | BOM_UTF32, BOM_UTF32_LE and BOM_UTF32_BE that represent the Byte |
| 4184 | Order Mark in UTF-8, UTF-16 and UTF-32 encodings for little and |
| 4185 | big endian systems were added to the codecs module. The old names |
| 4186 | BOM32_* and BOM64_* were off by a factor of 2. |
| 4187 | |
Guido van Rossum | f925782 | 2002-06-18 20:43:18 +0000 | [diff] [blame] | 4188 | - Added conversion functions math.degrees() and math.radians(). |
Raymond Hettinger | 87f59ee | 2002-05-13 04:17:32 +0000 | [diff] [blame] | 4189 | |
Raymond Hettinger | 866964c | 2002-12-14 19:51:34 +0000 | [diff] [blame] | 4190 | - math.log() now takes an optional argument: math.log(x[, base]). |
| 4191 | |
Raymond Hettinger | 9b1df1d | 2002-05-12 06:07:21 +0000 | [diff] [blame] | 4192 | - ftplib.retrlines() now tests for callback is None rather than testing |
| 4193 | for False. Was causing an error when given a callback object which |
| 4194 | was callable but also returned len() as zero. The change may |
| 4195 | create new breakage if the caller relied on the undocumented behavior |
| 4196 | and called with callback set to [] or some other False value not |
| 4197 | identical to None. |
| 4198 | |
Tim Peters | 46c04e1 | 2002-05-05 20:40:00 +0000 | [diff] [blame] | 4199 | - random.gauss() uses a piece of hidden state used by nothing else, |
| 4200 | and the .seed() and .whseed() methods failed to reset it. In other |
| 4201 | words, setting the seed didn't completely determine the sequence of |
| 4202 | results produced by random.gauss(). It does now. Programs repeatedly |
| 4203 | mixing calls to a seed method with calls to gauss() may see different |
| 4204 | results now. |
| 4205 | |
Fred Drake | 7f781c9 | 2002-05-01 20:33:53 +0000 | [diff] [blame] | 4206 | - The pickle.Pickler class grew a clear_memo() method to mimic that |
| 4207 | provided by cPickle.Pickler. |
| 4208 | |
Tim Peters | 81b9251 | 2002-04-29 01:37:32 +0000 | [diff] [blame] | 4209 | - difflib's SequenceMatcher class now does a dynamic analysis of |
| 4210 | which elements are so frequent as to constitute noise. For |
| 4211 | comparing files as sequences of lines, this generally works better |
| 4212 | than the IS_LINE_JUNK function, and function ndiff's linejunk |
| 4213 | argument defaults to None now as a result. A happy benefit is |
| 4214 | that SequenceMatcher may run much faster now when applied |
| 4215 | to large files with many duplicate lines (for example, C program |
| 4216 | text with lots of repeated "}" and "return NULL;" lines). |
| 4217 | |
Guido van Rossum | 256705b | 2002-04-23 13:29:43 +0000 | [diff] [blame] | 4218 | - New Text.dump() method in Tkinter module. |
| 4219 | |
Marc-André Lemburg | 1ec71ea | 2002-04-17 20:33:40 +0000 | [diff] [blame] | 4220 | - New distutils commands for building packagers were added to |
| 4221 | support pkgtool on Solaris and swinstall on HP-UX. |
| 4222 | |
| 4223 | - distutils now has a new abstract binary packager base class |
| 4224 | command/bdist_packager, which simplifies writing packagers. |
| 4225 | This will hopefully provide the missing bits to encourage |
| 4226 | people to submit more packagers, e.g. for Debian, FreeBSD |
| 4227 | and other systems. |
| 4228 | |
Guido van Rossum | f925782 | 2002-06-18 20:43:18 +0000 | [diff] [blame] | 4229 | - The UTF-16, -LE and -BE stream readers now raise a |
| 4230 | NotImplementedError for all calls to .readline(). Previously, they |
| 4231 | used to just produce garbage or fail with an encoding error -- |
| 4232 | UTF-16 is a 2-byte encoding and the C lib's line reading APIs don't |
Marc-André Lemburg | 4179a01 | 2002-04-05 12:15:05 +0000 | [diff] [blame] | 4233 | work well with these. |
| 4234 | |
Martin v. Löwis | 5c137c2 | 2002-03-18 12:44:08 +0000 | [diff] [blame] | 4235 | - compileall now supports quiet operation. |
| 4236 | |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4237 | - The BaseHTTPServer now implements optional HTTP/1.1 persistent |
Martin v. Löwis | 587c98c | 2002-03-17 18:37:22 +0000 | [diff] [blame] | 4238 | connections. |
| 4239 | |
Marc-André Lemburg | a5d2b4c | 2002-02-16 18:23:30 +0000 | [diff] [blame] | 4240 | - socket module: the SSL support was broken out of the main |
| 4241 | _socket module C helper and placed into a new _ssl helper |
| 4242 | which now gets imported by socket.py if available and working. |
| 4243 | |
Marc-André Lemburg | 37aa580 | 2002-02-10 21:42:47 +0000 | [diff] [blame] | 4244 | - encodings package: added aliases for all supported IANA character |
| 4245 | sets |
| 4246 | |
Guido van Rossum | 606fe4e | 2001-12-28 20:57:14 +0000 | [diff] [blame] | 4247 | - ftplib: to safeguard the user's privacy, anonymous login will use |
| 4248 | "anonymous@" as default password, rather than the real user and host |
| 4249 | name. |
| 4250 | |
Fred Drake | 3673612 | 2002-01-10 13:50:31 +0000 | [diff] [blame] | 4251 | - webbrowser: tightened up the command passed to os.system() so that |
| 4252 | arbitrary shell code can't be executed because a bogus URL was |
| 4253 | passed in. |
| 4254 | |
Tim Peters | 11bd994 | 2002-02-01 00:52:29 +0000 | [diff] [blame] | 4255 | - gettext.translation has an optional fallback argument, and |
Martin v. Löwis | a55ffae | 2002-01-11 06:58:49 +0000 | [diff] [blame] | 4256 | gettext.find an optional all argument. Translations will now fallback |
Martin v. Löwis | d899605 | 2002-11-21 21:45:32 +0000 | [diff] [blame] | 4257 | on a per-message basis. The module supports plural forms, by means |
| 4258 | of gettext.[d]ngettext and Translation.[u]ngettext. |
Martin v. Löwis | 1be6419 | 2002-01-11 06:33:28 +0000 | [diff] [blame] | 4259 | |
Martin v. Löwis | 9668b93 | 2002-01-12 11:27:42 +0000 | [diff] [blame] | 4260 | - distutils bdist commands now offer a --skip-build option. |
| 4261 | |
Walter Dörwald | b25c2b0 | 2002-03-21 10:38:40 +0000 | [diff] [blame] | 4262 | - warnings.warn now accepts a Warning instance as first argument. |
| 4263 | |
Fred Drake | fed7e85 | 2002-04-04 19:36:15 +0000 | [diff] [blame] | 4264 | - The xml.sax.expatreader.ExpatParser class will no longer create |
| 4265 | circular references by using itself as the locator that gets passed |
| 4266 | to the content handler implementation. [SF bug #535474] |
| 4267 | |
Barry Warsaw | 47f3e2c | 2002-05-20 00:14:24 +0000 | [diff] [blame] | 4268 | - The email.Parser.Parser class now properly parses strings regardless |
| 4269 | of their line endings, which can be any of \r, \n, or \r\n (CR, LF, |
| 4270 | or CRLF). Also, the Header class's constructor default arguments |
| 4271 | has changed slightly so that an explicit maxlinelen value is always |
Barry Warsaw | 497e5c4 | 2002-12-30 19:27:08 +0000 | [diff] [blame] | 4272 | honored, and so unicode conversion error handling can be specified. |
Barry Warsaw | 47f3e2c | 2002-05-20 00:14:24 +0000 | [diff] [blame] | 4273 | |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 4274 | - distutils' build_ext command now links C++ extensions with the C++ |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 4275 | compiler available in the Makefile or CXX environment variable, if |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 4276 | running under \*nix. |
Gustavo Niemeyer | f8ca836 | 2002-11-05 16:50:05 +0000 | [diff] [blame] | 4277 | |
| 4278 | - New module bz2: provides a comprehensive interface for the bz2 compression |
| 4279 | library. It implements a complete file interface, one-shot (de)compression |
| 4280 | functions, and types for sequential (de)compression. |
| 4281 | |
David Goodger | f349e26 | 2003-01-03 03:30:21 +0000 | [diff] [blame] | 4282 | - New pdb command 'pp' which is like 'p' except that it pretty-prints |
Barry Warsaw | 5d8d618 | 2002-11-05 22:41:33 +0000 | [diff] [blame] | 4283 | the value of its expression argument. |
| 4284 | |
Gustavo Niemeyer | fbceb01 | 2002-11-06 18:44:26 +0000 | [diff] [blame] | 4285 | - Now bdist_rpm distutils command understands a verify_script option in |
| 4286 | the config file, including the contents of the referred filename in |
| 4287 | the "%verifyscript" section of the rpm spec file. |
| 4288 | |
Gustavo Niemeyer | 1456fde | 2002-11-25 17:25:04 +0000 | [diff] [blame] | 4289 | - Fixed bug #495695: webbrowser module would run graphic browsers in a |
| 4290 | unix environment even if DISPLAY was not set. Also, support for |
| 4291 | skipstone browser was included. |
| 4292 | |
Gustavo Niemeyer | d5ae01a | 2002-12-16 13:11:57 +0000 | [diff] [blame] | 4293 | - Fixed bug #636769: rexec would run unallowed code if subclasses of |
| 4294 | strings were used as parameters for certain functions. |
| 4295 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4296 | Tools/Demos |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4297 | ----------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4298 | |
Martin v. Löwis | 0d1fdea | 2002-11-22 08:36:54 +0000 | [diff] [blame] | 4299 | - pygettext.py now supports globbing on Windows, and accepts module |
| 4300 | names in addition to accepting file names. |
| 4301 | |
Guido van Rossum | 923e4ef | 2002-09-17 20:58:59 +0000 | [diff] [blame] | 4302 | - The SGI demos (Demo/sgi) have been removed. Nobody thought they |
| 4303 | were interesting any more. (The SGI library modules and extensions |
| 4304 | are still there; it is believed that at least some of these are |
| 4305 | still used and useful.) |
| 4306 | |
Fred Drake | 40813b1 | 2002-08-05 15:24:19 +0000 | [diff] [blame] | 4307 | - IDLE supports the new encoding declarations (PEP 263); it can also |
| 4308 | deal with legacy 8-bit files if they use the locale's encoding. It |
| 4309 | allows non-ASCII strings in the interactive shell and executes them |
| 4310 | in the locale's encoding. |
Martin v. Löwis | 98ce7b7 | 2002-08-05 15:11:26 +0000 | [diff] [blame] | 4311 | |
Marc-André Lemburg | 4626009 | 2002-04-04 16:17:11 +0000 | [diff] [blame] | 4312 | - freeze.py now produces binaries which can import shared modules, |
| 4313 | unlike before when this failed due to missing symbol exports in |
| 4314 | the generated binary. |
| 4315 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4316 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4317 | ----- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4318 | |
Martin v. Löwis | dc46175 | 2002-11-06 21:59:33 +0000 | [diff] [blame] | 4319 | - On Unix, IDLE is now installed automatically. |
| 4320 | |
Guido van Rossum | 6b3db55 | 2002-09-25 15:02:44 +0000 | [diff] [blame] | 4321 | - The fpectl module is not built by default; it's dangerous or useless |
| 4322 | except in the hands of experts. |
| 4323 | |
Tim Peters | f47630f | 2002-08-01 02:34:51 +0000 | [diff] [blame] | 4324 | - The public Python C API will generally be declared using PyAPI_FUNC |
Guido van Rossum | 6b3db55 | 2002-09-25 15:02:44 +0000 | [diff] [blame] | 4325 | and PyAPI_DATA macros, while Python extension module init functions |
| 4326 | will be declared with PyMODINIT_FUNC. DL_EXPORT/DL_IMPORT macros |
| 4327 | are deprecated. |
Neal Norwitz | 1389f3e | 2002-07-22 13:21:10 +0000 | [diff] [blame] | 4328 | |
Tim Peters | c6a3ff6 | 2002-07-08 22:11:52 +0000 | [diff] [blame] | 4329 | - A bug was fixed that could cause COUNT_ALLOCS builds to segfault, or |
| 4330 | get into infinite loops, when a new-style class got garbage-collected. |
| 4331 | Unfortunately, to avoid this, the way COUNT_ALLOCS works requires |
| 4332 | that new-style classes be immortal in COUNT_ALLOCS builds. Note that |
| 4333 | COUNT_ALLOCS is not enabled by default, in either release or debug |
| 4334 | builds, and that new-style classes are immortal only in COUNT_ALLOCS |
| 4335 | builds. |
| 4336 | |
Tim Peters | 943382c | 2002-07-07 03:59:34 +0000 | [diff] [blame] | 4337 | - Compiling out the cyclic garbage collector is no longer an option. |
| 4338 | The old symbol WITH_CYCLE_GC is now ignored, and Python.h arranges |
| 4339 | that it's always defined (for the benefit of any extension modules |
| 4340 | that may be conditionalizing on it). A bonus is that any extension |
| 4341 | type participating in cyclic gc can choose to participate in the |
| 4342 | Py_TRASHCAN mechanism now too; in the absence of cyclic gc, this used |
| 4343 | to require editing the core to teach the trashcan mechanism about the |
| 4344 | new type. |
| 4345 | |
Martin v. Löwis | 0cec0ff | 2002-07-28 16:33:45 +0000 | [diff] [blame] | 4346 | - According to Annex F of the current C standard, |
Tim Peters | 1de41bf | 2002-07-03 03:31:20 +0000 | [diff] [blame] | 4347 | |
| 4348 | The Standard C macro HUGE_VAL and its float and long double analogs, |
| 4349 | HUGE_VALF and HUGE_VALL, expand to expressions whose values are |
| 4350 | positive infinities. |
| 4351 | |
| 4352 | Python only uses the double HUGE_VAL, and only to #define its own symbol |
| 4353 | Py_HUGE_VAL. Some platforms have incorrect definitions for HUGE_VAL. |
| 4354 | pyport.h used to try to worm around that, but the workarounds triggered |
| 4355 | other bugs on other platforms, so we gave up. If your platform defines |
| 4356 | HUGE_VAL incorrectly, you'll need to #define Py_HUGE_VAL to something |
| 4357 | that works on your platform. The only instance of this I'm sure about |
| 4358 | is on an unknown subset of Cray systems, described here: |
| 4359 | |
| 4360 | http://www.cray.com/swpubs/manuals/SN-2194_2.0/html-SN-2194_2.0/x3138.htm |
| 4361 | |
| 4362 | Presumably 2.3a1 breaks such systems. If anyone uses such a system, help! |
| 4363 | |
Martin v. Löwis | a3fb4f7 | 2002-06-09 13:33:54 +0000 | [diff] [blame] | 4364 | - The configure option --without-doc-strings can be used to remove the |
| 4365 | doc strings from the builtin functions and modules; this reduces the |
| 4366 | size of the executable. |
| 4367 | |
Guido van Rossum | add8806 | 2002-08-15 14:01:14 +0000 | [diff] [blame] | 4368 | - The universal newlines option (PEP 278) is on by default. On Unix |
| 4369 | it can be disabled by passing --without-universal-newlines to the |
| 4370 | configure script. On other platforms, remove |
| 4371 | WITH_UNIVERSAL_NEWLINES from pyconfig.h. |
Tim Peters | 639295f | 2002-04-21 07:30:30 +0000 | [diff] [blame] | 4372 | |
Martin v. Löwis | 1142de3 | 2002-03-29 16:28:31 +0000 | [diff] [blame] | 4373 | - On Unix, a shared libpython2.3.so can be created with --enable-shared. |
| 4374 | |
Tim Peters | 8deda70 | 2002-03-30 10:06:07 +0000 | [diff] [blame] | 4375 | - All uses of the CACHE_HASH, INTERN_STRINGS, and DONT_SHARE_SHORT_STRINGS |
| 4376 | preprocessor symbols were eliminated. The internal decisions they |
| 4377 | controlled stopped being experimental long ago. |
Tim Peters | 1f7df35 | 2002-03-29 03:29:08 +0000 | [diff] [blame] | 4378 | |
Fred Drake | 7d28b73 | 2002-05-02 21:17:00 +0000 | [diff] [blame] | 4379 | - The tools used to build the documentation now work under Cygwin as |
| 4380 | well as Unix. |
| 4381 | |
Skip Montanaro | 57454e5 | 2002-06-14 20:30:31 +0000 | [diff] [blame] | 4382 | - The bsddb and dbm module builds have been changed to try and avoid version |
| 4383 | skew problems and disable linkage with Berkeley DB 1.85 unless the |
| 4384 | installer knows what s/he's doing. See the section on building these |
| 4385 | modules in the README file for details. |
| 4386 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4387 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4388 | ----- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4389 | |
Neil Schemenauer | 6c19476 | 2002-11-18 16:19:39 +0000 | [diff] [blame] | 4390 | - PyNumber_Check() now returns true for string and unicode objects. |
| 4391 | This is a result of these types having a partially defined |
Guido van Rossum | 1d26740 | 2002-11-18 16:27:16 +0000 | [diff] [blame] | 4392 | tp_as_number slot. (This is not a feature, but an indication that |
Walter Dörwald | a1a61f9 | 2002-11-19 21:20:25 +0000 | [diff] [blame] | 4393 | PyNumber_Check() is not very useful to determine numeric behavior. |
Guido van Rossum | 1d26740 | 2002-11-18 16:27:16 +0000 | [diff] [blame] | 4394 | It may be deprecated.) |
Neil Schemenauer | 6c19476 | 2002-11-18 16:19:39 +0000 | [diff] [blame] | 4395 | |
Guido van Rossum | 45ec02a | 2002-08-19 21:43:18 +0000 | [diff] [blame] | 4396 | - The string object's layout has changed: the pointer member |
| 4397 | ob_sinterned has been replaced by an int member ob_sstate. On some |
| 4398 | platforms (e.g. most 64-bit systems) this may change the offset of |
| 4399 | the ob_sval member, so as a precaution the API_VERSION has been |
| 4400 | incremented. The apparently unused feature of "indirect interned |
| 4401 | strings", supported by the ob_sinterned member, is gone. Interned |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4402 | strings are now usually mortal; there is a new API, |
Guido van Rossum | 45ec02a | 2002-08-19 21:43:18 +0000 | [diff] [blame] | 4403 | PyString_InternImmortal() that creates immortal interned strings. |
| 4404 | (The ob_sstate member can only take three values; however, while |
| 4405 | making it a char saves a few bytes per string object on average, in |
| 4406 | it also slowed things down a bit because ob_sval was no longer |
| 4407 | aligned.) |
| 4408 | |
Guido van Rossum | fdb8648 | 2002-08-14 21:20:32 +0000 | [diff] [blame] | 4409 | - The Py_InitModule*() functions now accept NULL for the 'methods' |
| 4410 | argument. Modules without global functions are becoming more common |
| 4411 | now that factories can be types rather than functions. |
| 4412 | |
Marc-André Lemburg | cc8764c | 2002-08-11 12:23:04 +0000 | [diff] [blame] | 4413 | - New C API PyUnicode_FromOrdinal() which exposes unichr() at C |
| 4414 | level. |
| 4415 | |
Thomas Heller | 085358a | 2002-07-29 14:27:41 +0000 | [diff] [blame] | 4416 | - New functions PyErr_SetExcFromWindowsErr() and |
| 4417 | PyErr_SetExcFromWindowsErrWithFilename(). Similar to |
| 4418 | PyErr_SetFromWindowsErrWithFilename() and |
| 4419 | PyErr_SetFromWindowsErr(), but they allow to specify |
| 4420 | the exception type to raise. Available on Windows. |
| 4421 | |
Tim Peters | 7c321a8 | 2002-07-09 02:57:01 +0000 | [diff] [blame] | 4422 | - Py_FatalError() is now declared as taking a const char* argument. It |
| 4423 | was previously declared without const. This should not affect working |
| 4424 | code. |
| 4425 | |
Martin v. Löwis | 01f94bd | 2002-05-08 08:44:21 +0000 | [diff] [blame] | 4426 | - Added new macro PySequence_ITEM(o, i) that directly calls |
| 4427 | sq_item without rechecking that o is a sequence and without |
| 4428 | adjusting for negative indices. |
| 4429 | |
Fred Drake | d0ba636 | 2002-05-02 21:28:26 +0000 | [diff] [blame] | 4430 | - PyRange_New() now raises ValueError if the fourth argument is not 1. |
| 4431 | This is part of the removal of deprecated features of the xrange |
| 4432 | object. |
| 4433 | |
Guido van Rossum | 517c7d4 | 2002-04-26 02:49:14 +0000 | [diff] [blame] | 4434 | - PyNumber_Coerce() and PyNumber_CoerceEx() now also invoke the type's |
| 4435 | coercion if both arguments have the same type but this type has the |
| 4436 | CHECKTYPES flag set. This is to better support proxies. |
| 4437 | |
Skip Montanaro | a2a07bc | 2002-09-30 15:23:01 +0000 | [diff] [blame] | 4438 | - The type of tp_free has been changed from "``void (*)(PyObject *)``" to |
| 4439 | "``void (*)(void *)``". |
Neil Schemenauer | 9344b14 | 2002-04-12 23:00:08 +0000 | [diff] [blame] | 4440 | |
| 4441 | - PyObject_Del, PyObject_GC_Del are now functions instead of macros. |
| 4442 | |
Guido van Rossum | 0986d82 | 2002-04-08 01:38:42 +0000 | [diff] [blame] | 4443 | - A type can now inherit its metatype from its base type. Previously, |
| 4444 | when PyType_Ready() was called, if ob_type was found to be NULL, it |
| 4445 | was always set to &PyType_Type; now it is set to base->ob_type, |
| 4446 | where base is tp_base, defaulting to &PyObject_Type. |
| 4447 | |
| 4448 | - PyType_Ready() accidentally did not inherit tp_is_gc; now it does. |
| 4449 | |
Neil Schemenauer | c9abc1d | 2002-05-08 14:14:41 +0000 | [diff] [blame] | 4450 | - The PyCore_* family of APIs have been removed. |
Neil Schemenauer | 9d50d13 | 2002-03-22 17:06:59 +0000 | [diff] [blame] | 4451 | |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4452 | - The "u#" parser marker will now pass through Unicode objects as-is |
Marc-André Lemburg | 3e3eacb | 2002-01-09 16:21:27 +0000 | [diff] [blame] | 4453 | without going through the buffer API. |
| 4454 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4455 | - The enumerators of cmp_op have been renamed to use the prefix ``PyCmp_``. |
Martin v. Löwis | 7198a52 | 2002-01-01 19:59:11 +0000 | [diff] [blame] | 4456 | |
Tim Peters | 10a3bb5 | 2001-12-25 19:07:38 +0000 | [diff] [blame] | 4457 | - An old #define of ANY as void has been removed from pyport.h. This |
| 4458 | hasn't been used since Python's pre-ANSI days, and the #define has |
| 4459 | been marked as obsolete since then. SF bug 495548 says it created |
| 4460 | conflicts with other packages, so keeping it around wasn't harmless. |
| 4461 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4462 | - Because Python's magic number scheme broke on January 1st, we decided |
| 4463 | to stop Python development. Thanks for all the fish! |
| 4464 | |
Tim Peters | fb05db2 | 2002-03-11 00:24:00 +0000 | [diff] [blame] | 4465 | - Some of us don't like fish, so we changed Python's magic number |
Marc-André Lemburg | e92e0a9 | 2002-02-09 11:28:43 +0000 | [diff] [blame] | 4466 | scheme to a new one. See Python/import.c for details. |
| 4467 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4468 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4469 | ------------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4470 | |
Martin v. Löwis | 79acb9e | 2002-12-06 12:48:53 +0000 | [diff] [blame] | 4471 | - OpenVMS is now supported. |
| 4472 | |
Martin v. Löwis | f90ae20 | 2002-06-11 06:22:31 +0000 | [diff] [blame] | 4473 | - AtheOS is now supported. |
| 4474 | |
Andrew MacIntyre | 161ad0e | 2002-08-04 07:25:58 +0000 | [diff] [blame] | 4475 | - the EMX runtime environment on OS/2 is now supported. |
| 4476 | |
Martin v. Löwis | a6e9758 | 2002-01-01 18:41:33 +0000 | [diff] [blame] | 4477 | - GNU/Hurd is now supported. |
| 4478 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4479 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4480 | ----- |
| 4481 | |
Fred Drake | 4dd0f7e | 2002-11-26 21:44:56 +0000 | [diff] [blame] | 4482 | - The regrtest.py script's -u option now provides a way to say "allow |
| 4483 | all resources except this one." For example, to allow everything |
| 4484 | except bsddb, give the option '-uall,-bsddb'. |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4485 | |
| 4486 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4487 | ------- |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4488 | |
Tim Peters | 19cf4ee | 2002-11-23 03:49:08 +0000 | [diff] [blame] | 4489 | - The Windows distribution now ships with version 4.0.14 of the |
| 4490 | Sleepycat Berkeley database library. This should be a huge |
| 4491 | improvement over the previous Berkeley DB 1.85, which had many |
| 4492 | bugs. |
| 4493 | XXX What are the licensing issues here? |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4494 | XXX If a user has a database created with a previous version of |
Tim Peters | 84c7a3f | 2002-11-23 18:48:06 +0000 | [diff] [blame] | 4495 | XXX Python, what must they do to convert it? |
| 4496 | XXX I'm still not sure how to link this thing (see PCbuild/readme.txt). |
Tim Peters | 19cf4ee | 2002-11-23 03:49:08 +0000 | [diff] [blame] | 4497 | XXX The version # is likely to change before 2.3a1. |
Tim Peters | e820cb6 | 2002-12-16 20:57:22 +0000 | [diff] [blame] | 4498 | |
| 4499 | - The Windows distribution now ships with a Secure Sockets Library (SLL) |
Mark Hammond | c3de008 | 2002-12-03 06:16:08 +0000 | [diff] [blame] | 4500 | module (_ssl.pyd) |
Tim Peters | 19cf4ee | 2002-11-23 03:49:08 +0000 | [diff] [blame] | 4501 | |
Tim Peters | 857fb4c | 2002-11-14 23:31:58 +0000 | [diff] [blame] | 4502 | - The Windows distribution now ships with Tcl/Tk version 8.4.1 (it |
| 4503 | previously shipped with Tcl/Tk 8.3.2). |
| 4504 | |
Tim Peters | 37dfb01 | 2002-11-11 19:51:33 +0000 | [diff] [blame] | 4505 | - When Python is built under a Microsoft compiler, sys.version now |
| 4506 | includes the compiler version number (_MSC_VER). For example, under |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4507 | MSVC 6, sys.version contains the substring "MSC v.1200 ". 1200 is |
Tim Peters | 37dfb01 | 2002-11-11 19:51:33 +0000 | [diff] [blame] | 4508 | the value of _MSC_VER under MSVC 6. |
| 4509 | |
Tim Peters | 08e7295 | 2002-04-16 20:48:01 +0000 | [diff] [blame] | 4510 | - Sometimes the uninstall executable (UNWISE.EXE) vanishes. One cause |
| 4511 | of that has been fixed in the installer (disabled Wise's "delete in- |
| 4512 | use files" uninstall option). |
| 4513 | |
Guido van Rossum | 181e41a | 2002-04-06 00:23:25 +0000 | [diff] [blame] | 4514 | - Fixed a bug in urllib's proxy handling in Windows. [SF bug #503031] |
| 4515 | |
Tim Peters | 3318792 | 2002-04-04 20:02:04 +0000 | [diff] [blame] | 4516 | - The installer now installs Start menu shortcuts under (the local |
| 4517 | equivalent of) "All Users" when doing an Admin install. |
| 4518 | |
Tim Peters | fb05db2 | 2002-03-11 00:24:00 +0000 | [diff] [blame] | 4519 | - file.truncate([newsize]) now works on Windows for all newsize values. |
| 4520 | It used to fail if newsize didn't fit in 32 bits, reflecting a |
| 4521 | limitation of MS _chsize (which is no longer used). |
| 4522 | |
Tim Peters | ab034fa | 2002-02-01 11:27:43 +0000 | [diff] [blame] | 4523 | - os.waitpid() is now implemented for Windows, and can be used to block |
| 4524 | until a specified process exits. This is similar to, but not exactly |
| 4525 | the same as, os.waitpid() on POSIX systems. If you're waiting for |
| 4526 | a specific process whose pid was obtained from one of the spawn() |
| 4527 | functions, the same Python os.waitpid() code works across platforms. |
Tim Peters | 3318792 | 2002-04-04 20:02:04 +0000 | [diff] [blame] | 4528 | See the docs for details. The docs were changed to clarify that |
| 4529 | spawn functions return, and waitpid requires, a process handle on |
| 4530 | Windows (not the same thing as a Windows process id). |
Tim Peters | ab034fa | 2002-02-01 11:27:43 +0000 | [diff] [blame] | 4531 | |
Tim Peters | 11bd994 | 2002-02-01 00:52:29 +0000 | [diff] [blame] | 4532 | - New tempfile.TemporaryFile implementation for Windows: this doesn't |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4533 | need a TemporaryFileWrapper wrapper anymore, and should be immune |
Tim Peters | 11bd994 | 2002-02-01 00:52:29 +0000 | [diff] [blame] | 4534 | to a nasty problem: before 2.3, if you got a temp file on Windows, it |
| 4535 | got wrapped in an object whose close() method first closed the |
| 4536 | underlying file, then deleted the file. This usually worked fine. |
| 4537 | However, the spawn family of functions on Windows create (at a low C |
| 4538 | level) the same set of open files in the spawned process Q as were |
| 4539 | open in the spawning process P. If a temp file f was among them, then |
| 4540 | doing f.close() in P first closed P's C-level file handle on f, but Q's |
| 4541 | C-level file handle on f remained open, so the attempt in P to delete f |
| 4542 | blew up with a "Permission denied" error (Windows doesn't allow |
| 4543 | deleting open files). This was surprising, subtle, and difficult to |
| 4544 | work around. |
| 4545 | |
| 4546 | - The os module now exports all the symbolic constants usable with the |
| 4547 | low-level os.open() on Windows: the new constants in 2.3 are |
| 4548 | O_NOINHERIT, O_SHORT_LIVED, O_TEMPORARY, O_RANDOM and O_SEQUENTIAL. |
| 4549 | The others were also available in 2.2: O_APPEND, O_BINARY, O_CREAT, |
| 4550 | O_EXCL, O_RDONLY, O_RDWR, O_TEXT, O_TRUNC and O_WRONLY. Contrary |
| 4551 | to Microsoft docs, O_SHORT_LIVED does not seem to imply O_TEMPORARY |
| 4552 | (so specify both if you want both; note that neither is useful unless |
| 4553 | specified with O_CREAT too). |
| 4554 | |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4555 | Mac |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4556 | ---- |
| 4557 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4558 | - Mac/Relnotes is gone, the release notes are now here. |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4559 | |
Just van Rossum | e1ebd80 | 2003-02-10 10:06:18 +0000 | [diff] [blame] | 4560 | - Python (the OSX-only, unix-based version, not the OS9-compatible CFM |
| 4561 | version) now fully supports unicode strings as arguments to various file |
| 4562 | system calls, eg. open(), file(), os.stat() and os.listdir(). |
| 4563 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4564 | - The current naming convention for Python on the Macintosh is that MacPython |
| 4565 | refers to the unix-based OSX-only version, and MacPython-OS9 refers to the |
| 4566 | CFM-based version that runs on both OS9 and OSX. |
| 4567 | |
| 4568 | - All MacPython-OS9 functionality is now available in an OSX unix build, |
| 4569 | including the Carbon modules, the IDE, OSA support, etc. A lot of this |
| 4570 | will only work correctly in a framework build, though, because you cannot |
| 4571 | talk to the window manager unless your application is run from a .app |
| 4572 | bundle. There is a command line tool "pythonw" that runs your script |
| 4573 | with an interpreter living in such a .app bundle, this interpreter should |
| 4574 | be used to run any Python script using the window manager (including |
| 4575 | Tkinter or wxPython scripts). |
Tim Peters | bbc5d16 | 2003-01-02 16:02:27 +0000 | [diff] [blame] | 4576 | |
Jack Jansen | 8bb80db | 2002-12-30 22:42:43 +0000 | [diff] [blame] | 4577 | - Most of Mac/Lib has moved to Lib/plat-mac, which is again used both in |
| 4578 | MacPython-OSX and MacPython-OS9. The only modules remaining in Mac/Lib |
| 4579 | are specifically for MacPython-OS9 (CFM support, preference resources, etc). |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4580 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4581 | - A new utility PythonLauncher will start a Python interpreter when a .py or |
| 4582 | .pyw script is double-clicked in the Finder. By default .py scripts are |
| 4583 | run with a normal Python interpreter in a Terminal window and .pyw |
| 4584 | files are run with a window-aware pythonw interpreter without a Terminal |
| 4585 | window, but all this can be customized. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4586 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4587 | - MacPython-OS9 is now Carbon-only, so it runs on Mac OS 9 or Mac OS X and |
| 4588 | possibly on Mac OS 8.6 with the right CarbonLib installed, but not on earlier |
| 4589 | releases. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4590 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4591 | - Many tools such as BuildApplet.py and gensuitemodule.py now support a command |
| 4592 | line interface too. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4593 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4594 | - All the Carbon classes are now PEP253 compliant, meaning that you can |
| 4595 | subclass them from Python. Most of the attributes have gone, you should |
| 4596 | now use the accessor function call API, which is also what Apple's |
| 4597 | documentation uses. Some attributes such as grafport.visRgn are still |
| 4598 | available for convenience. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4599 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4600 | - New Carbon modules File (implementing the APIs in Files.h and Aliases.h) |
| 4601 | and Folder (APIs from Folders.h). The old macfs builtin module is |
| 4602 | gone, and replaced by a Python wrapper around the new modules. |
| 4603 | |
| 4604 | - Pathname handling should now be fully consistent: MacPython-OSX always uses |
| 4605 | unix pathnames and MacPython-OS9 always uses colon-separated Mac pathnames |
| 4606 | (also when running on Mac OS X). |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4607 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4608 | - New Carbon modules Help and AH give access to the Carbon Help Manager. |
| 4609 | There are hooks in the IDE to allow accessing the Python documentation |
| 4610 | (and Apple's Carbon and Cocoa documentation) through the Help Viewer. |
| 4611 | See Mac/OSX/README for converting the Python documentation to a |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 4612 | Help Viewer compatible form and installing it. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4613 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4614 | - OSA support has been redesigned and the generated Python classes now |
| 4615 | mirror the inheritance defined by the underlying OSA classes. |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 4616 | |
Jack Jansen | ae3cb6c | 2002-12-23 11:25:49 +0000 | [diff] [blame] | 4617 | - MacPython no longer maps both \r and \n to \n on input for any text file. |
| 4618 | This feature has been replaced by universal newline support (PEP278). |
Tim Peters | 0bf60bd | 2003-01-08 20:40:01 +0000 | [diff] [blame] | 4619 | |
Jack Jansen | 05d284b | 2003-01-08 16:29:17 +0000 | [diff] [blame] | 4620 | - The default encoding for Python sourcefiles in MacPython-OS9 is no longer |
Guido van Rossum | 16c8517 | 2003-02-20 01:52:48 +0000 | [diff] [blame] | 4621 | mac-roman (or whatever your local Mac encoding was) but "ascii", like on |
Jack Jansen | 05d284b | 2003-01-08 16:29:17 +0000 | [diff] [blame] | 4622 | other platforms. If you really need sourcefiles with Mac characters in them |
| 4623 | you can change this in site.py. |
Tim Peters | af8446f | 2001-12-21 21:36:50 +0000 | [diff] [blame] | 4624 | |
Guido van Rossum | 351a7dd | 2003-02-20 01:56:17 +0000 | [diff] [blame] | 4625 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4626 | What's New in Python 2.2 final? |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4627 | =============================== |
| 4628 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4629 | *Release date: 21-Dec-2001* |
| 4630 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4631 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4632 | -------------------------------------------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4633 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4634 | - pickle.py, cPickle: allow pickling instances of new-style classes |
| 4635 | with a custom metaclass. |
| 4636 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4637 | Core and builtins |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4638 | ----------------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4639 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4640 | - weakref proxy object: when comparing, unwrap both arguments if both |
| 4641 | are proxies. |
| 4642 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4643 | Extension modules |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4644 | ----------------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4645 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4646 | - binascii.b2a_base64(): fix a potential buffer overrun when encoding |
| 4647 | very short strings. |
| 4648 | |
| 4649 | - cPickle: the obscure "fast" mode was suspected of causing stack |
| 4650 | overflows on the Mac. Hopefully fixed this by setting the recursion |
| 4651 | limit much smaller. If the limit is too low (it only affects |
| 4652 | performance), you can change it by defining PY_CPICKLE_FAST_LIMIT |
| 4653 | when compiling cPickle.c (or in pyconfig.h). |
| 4654 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4655 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4656 | ------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4657 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4658 | - dumbdbm.py: fixed a dumb old bug (the file didn't get synched at |
| 4659 | close or delete time). |
| 4660 | |
| 4661 | - rfc822.py: fixed a bug where the address '<>' was converted to None |
| 4662 | instead of an empty string (also fixes the email.Utils module). |
| 4663 | |
| 4664 | - xmlrpclib.py: version 1.0.0; uses precision for doubles. |
| 4665 | |
| 4666 | - test suite: the pickle and cPickle tests were not executing any code |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4667 | when run from the standard regression test. |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4668 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4669 | Tools/Demos |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4670 | ----------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4671 | |
| 4672 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4673 | ----- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4674 | |
| 4675 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4676 | ----- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4677 | |
| 4678 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4679 | ------------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4680 | |
| 4681 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4682 | ----- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4683 | |
| 4684 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4685 | ------- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4686 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4687 | - distutils package: fixed broken Windows installers (bdist_wininst). |
| 4688 | |
| 4689 | - tempfile.py: prevent mysterious warnings when TemporaryFileWrapper |
| 4690 | instances are deleted at process exit time. |
| 4691 | |
| 4692 | - socket.py: prevent mysterious warnings when socket instances are |
| 4693 | deleted at process exit time. |
| 4694 | |
| 4695 | - posixmodule.c: fix a Windows crash with stat() of a filename ending |
| 4696 | in backslash. |
| 4697 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4698 | Mac |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4699 | ---- |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4700 | |
Barry Warsaw | 52acb49 | 2001-12-21 20:04:22 +0000 | [diff] [blame] | 4701 | - The Carbon toolbox modules have been upgraded to Universal Headers |
| 4702 | 3.4, and experimental CoreGraphics and CarbonEvents modules have |
| 4703 | been added. All only for framework-enabled MacOSX. |
| 4704 | |
Tim Peters | 909c091 | 2001-12-14 23:16:18 +0000 | [diff] [blame] | 4705 | |
Tim Peters | 6272dfd | 2001-12-13 19:34:00 +0000 | [diff] [blame] | 4706 | What's New in Python 2.2c1? |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4707 | =========================== |
| 4708 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4709 | *Release date: 14-Dec-2001* |
| 4710 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4711 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4712 | -------------------------------------------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4713 | |
Barry Warsaw | 0655745 | 2001-12-14 20:47:12 +0000 | [diff] [blame] | 4714 | - Guido's tutorial introduction to the new type/class features has |
| 4715 | been extensively updated. See |
| 4716 | |
| 4717 | http://www.python.org/2.2/descrintro.html |
| 4718 | |
| 4719 | That remains the primary documentation in this area. |
| 4720 | |
Guido van Rossum | 33bab01 | 2001-12-05 22:45:48 +0000 | [diff] [blame] | 4721 | - Fixed a leak: instance variables declared with __slots__ were never |
| 4722 | deleted! |
| 4723 | |
Guido van Rossum | 4b80085 | 2001-12-03 00:54:52 +0000 | [diff] [blame] | 4724 | - The "delete attribute" method of descriptor objects is called |
| 4725 | __delete__, not __del__. In previous releases, it was mistakenly |
| 4726 | called __del__, which created an unfortunate overloading condition |
| 4727 | with finalizers. (The "get attribute" and "set attribute" methods |
| 4728 | are still called __get__ and __set__, respectively.) |
| 4729 | |
Guido van Rossum | cdbbd0a | 2001-12-03 15:46:59 +0000 | [diff] [blame] | 4730 | - Some subtle issues with the super built-in were fixed: |
| 4731 | |
| 4732 | (a) When super itself is subclassed, its __get__ method would still |
| 4733 | return an instance of the base class (i.e., of super). |
| 4734 | |
| 4735 | (b) super(C, C()).__class__ would return C rather than super. This |
| 4736 | is confusing. To fix this, I decided to change the semantics of |
| 4737 | super so that it only applies to code attributes, not to data |
| 4738 | attributes. After all, overriding data attributes is not |
| 4739 | supported anyway. |
| 4740 | |
| 4741 | (c) The __get__ method didn't check whether the argument was an |
| 4742 | instance of the type used in creation of the super instance. |
| 4743 | |
Guido van Rossum | cd7b7d6 | 2001-12-04 21:02:07 +0000 | [diff] [blame] | 4744 | - Previously, hash() of an instance of a subclass of a mutable type |
| 4745 | (list or dictionary) would return some value, rather than raising |
| 4746 | TypeError. This has been fixed. Also, directly calling |
| 4747 | dict.__hash__ and list.__hash__ now raises the same TypeError |
| 4748 | (previously, these were the same as object.__hash__). |
Guido van Rossum | cdbbd0a | 2001-12-03 15:46:59 +0000 | [diff] [blame] | 4749 | |
Guido van Rossum | d331cb5 | 2001-12-05 19:46:42 +0000 | [diff] [blame] | 4750 | - New-style objects now support deleting their __dict__. This is for |
| 4751 | all intents and purposes equivalent to assigning a brand new empty |
| 4752 | dictionary, but saves space if the object is not used further. |
| 4753 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4754 | Core and builtins |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4755 | ----------------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4756 | |
Tim Peters | 3caca23 | 2001-12-06 06:23:26 +0000 | [diff] [blame] | 4757 | - -Qnew now works as documented in PEP 238: when -Qnew is passed on |
| 4758 | the command line, all occurrences of "/" use true division instead |
| 4759 | of classic division. See the PEP for details. Note that "all" |
| 4760 | means all instances in library and 3rd-party modules, as well as in |
| 4761 | your own code. As the PEP says, -Qnew is intended for use only in |
| 4762 | educational environments with control over the libraries in use. |
Tim Peters | bf72fe2 | 2001-12-11 21:43:14 +0000 | [diff] [blame] | 4763 | Note that test_coercion.py in the standard Python test suite fails |
| 4764 | under -Qnew; this is expected, and won't be repaired until true |
| 4765 | division becomes the default (in the meantime, test_coercion is |
| 4766 | testing the current rules). |
Tim Peters | 3caca23 | 2001-12-06 06:23:26 +0000 | [diff] [blame] | 4767 | |
Fred Drake | 6c01e25 | 2001-12-14 17:08:12 +0000 | [diff] [blame] | 4768 | - complex() now only allows the first argument to be a string |
| 4769 | argument, and raises TypeError if either the second arg is a string |
| 4770 | or if the second arg is specified when the first is a string. |
| 4771 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4772 | Extension modules |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4773 | ----------------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4774 | |
Martin v. Löwis | 560da62 | 2001-11-24 09:24:51 +0000 | [diff] [blame] | 4775 | - gc.get_referents was renamed to gc.get_referrers. |
| 4776 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4777 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4778 | ------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4779 | |
Tim Peters | 25059d3 | 2001-12-07 20:35:43 +0000 | [diff] [blame] | 4780 | - Functions in the os.spawn() family now release the global interpreter |
| 4781 | lock around calling the platform spawn. They should always have done |
| 4782 | this, but did not before 2.2c1. Multithreaded programs calling |
| 4783 | an os.spawn function with P_WAIT will no longer block all Python threads |
| 4784 | until the spawned program completes. It's possible that some programs |
| 4785 | relies on blocking, although more likely by accident than by design. |
| 4786 | |
Martin v. Löwis | 3a89b2b | 2001-11-25 14:35:58 +0000 | [diff] [blame] | 4787 | - webbrowser defaults to netscape.exe on OS/2 now. |
| 4788 | |
Martin v. Löwis | 652e191 | 2001-11-25 14:50:56 +0000 | [diff] [blame] | 4789 | - Tix.ResizeHandle exposes detach_widget, hide, and show. |
| 4790 | |
Martin v. Löwis | 714d2e2 | 2001-12-02 12:26:03 +0000 | [diff] [blame] | 4791 | - The charset alias windows_1252 has been added. |
| 4792 | |
Barry Warsaw | 0655745 | 2001-12-14 20:47:12 +0000 | [diff] [blame] | 4793 | - types.StringTypes is a tuple containing the defined string types; |
| 4794 | usually this will be (str, unicode), but if Python was compiled |
| 4795 | without Unicode support it will be just (str,). |
| 4796 | |
| 4797 | - The pulldom and minidom modules were synchronized to PyXML. |
| 4798 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4799 | Tools/Demos |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4800 | ----------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4801 | |
Barry Warsaw | 0655745 | 2001-12-14 20:47:12 +0000 | [diff] [blame] | 4802 | - A new script called Tools/scripts/google.py was added, which fires |
| 4803 | off a search on Google. |
| 4804 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4805 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4806 | ----- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4807 | |
Barry Warsaw | 0655745 | 2001-12-14 20:47:12 +0000 | [diff] [blame] | 4808 | - Note that release builds of Python should arrange to define the |
| 4809 | preprocessor symbol NDEBUG on the command line (or equivalent). |
| 4810 | In the 2.2 pre-release series we tried to define this by magic in |
| 4811 | Python.h instead, but it proved to cause problems for extension |
| 4812 | authors. The Unix, Windows and Mac builds now all define NDEBUG in |
| 4813 | release builds via cmdline (or equivalent) instead. Ports to |
| 4814 | other platforms should do likewise. |
| 4815 | |
Jack Jansen | 1999ef4 | 2001-12-06 21:47:20 +0000 | [diff] [blame] | 4816 | - It is no longer necessary to use --with-suffix when building on a |
| 4817 | case-insensitive file system (such as Mac OS X HFS+). In the build |
| 4818 | directory an extension is used, but not in the installed python. |
| 4819 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4820 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4821 | ----- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4822 | |
Tim Peters | f582b82 | 2001-12-11 18:51:08 +0000 | [diff] [blame] | 4823 | - New function PyDict_MergeFromSeq2() exposes the builtin dict |
| 4824 | constructor's logic for updating a dictionary from an iterable object |
| 4825 | producing key-value pairs. |
| 4826 | |
Tim Peters | cffed4b | 2001-11-29 03:26:37 +0000 | [diff] [blame] | 4827 | - PyArg_ParseTupleAndKeywords() requires that the number of entries in |
Tim Peters | f582b82 | 2001-12-11 18:51:08 +0000 | [diff] [blame] | 4828 | the keyword list equal the number of argument specifiers. This |
Tim Peters | cffed4b | 2001-11-29 03:26:37 +0000 | [diff] [blame] | 4829 | wasn't checked correctly, and PyArg_ParseTupleAndKeywords could even |
| 4830 | dump core in some bad cases. This has been repaired. As a result, |
| 4831 | PyArg_ParseTupleAndKeywords may raise RuntimeError in bad cases that |
| 4832 | previously went unchallenged. |
| 4833 | |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4834 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4835 | ------------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4836 | |
| 4837 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4838 | ----- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4839 | |
| 4840 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4841 | ------- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4842 | |
| 4843 | Mac |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4844 | ---- |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4845 | |
Jack Jansen | ffa260f | 2001-12-06 21:14:00 +0000 | [diff] [blame] | 4846 | - In unix-Python on Mac OS X (and darwin) sys.platform is now "darwin", |
| 4847 | without any trailing digits. |
Tim Peters | b3c9af1 | 2001-11-17 00:21:57 +0000 | [diff] [blame] | 4848 | |
Barry Warsaw | 0655745 | 2001-12-14 20:47:12 +0000 | [diff] [blame] | 4849 | - Changed logic for finding python home in Mac OS X framework Pythons. |
| 4850 | Now sys.executable points to the executable again, in stead of to |
| 4851 | the shared library. The latter is used only for locating the python |
| 4852 | home. |
| 4853 | |
| 4854 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4855 | What's New in Python 2.2b2? |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4856 | =========================== |
| 4857 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4858 | *Release date: 16-Nov-2001* |
| 4859 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4860 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4861 | -------------------------------------------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4862 | |
Guido van Rossum | 3d27df0 | 2001-11-15 20:27:54 +0000 | [diff] [blame] | 4863 | - Multiple inheritance mixing new-style and classic classes in the |
| 4864 | list of base classes is now allowed, so this works now: |
Tim Peters | 76f7fe3 | 2001-11-15 20:02:21 +0000 | [diff] [blame] | 4865 | |
| 4866 | class Classic: pass |
Guido van Rossum | 3d27df0 | 2001-11-15 20:27:54 +0000 | [diff] [blame] | 4867 | class Mixed(Classic, object): pass |
Tim Peters | 76f7fe3 | 2001-11-15 20:02:21 +0000 | [diff] [blame] | 4868 | |
| 4869 | The MRO (method resolution order) for each base class is respected |
| 4870 | according to its kind, but the MRO for the derived class is computed |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4871 | using new-style MRO rules if any base class is a new-style class. |
Tim Peters | 76f7fe3 | 2001-11-15 20:02:21 +0000 | [diff] [blame] | 4872 | This needs to be documented. |
| 4873 | |
Tim Peters | a427a2b | 2001-10-29 22:25:45 +0000 | [diff] [blame] | 4874 | - The new builtin dictionary() constructor, and dictionary type, have |
| 4875 | been renamed to dict. This reflects a decade of common usage. |
| 4876 | |
Guido van Rossum | 3fc08d2 | 2001-11-15 20:33:10 +0000 | [diff] [blame] | 4877 | - dict() now accepts an iterable object producing 2-sequences. For |
| 4878 | example, dict(d.items()) == d for any dictionary d. The argument, |
| 4879 | and the elements of the argument, can be any iterable objects. |
| 4880 | |
Guido van Rossum | 7ad2d1e | 2001-10-29 22:11:00 +0000 | [diff] [blame] | 4881 | - New-style classes can now have a __del__ method, which is called |
| 4882 | when the instance is deleted (just like for classic classes). |
| 4883 | |
Guido van Rossum | 12d955c | 2001-10-26 14:56:06 +0000 | [diff] [blame] | 4884 | - Assignment to object.__dict__ is now possible, for objects that are |
| 4885 | instances of new-style classes that have a __dict__ (unless the base |
| 4886 | class forbids it). |
| 4887 | |
Guido van Rossum | c8e5645 | 2001-10-22 00:43:43 +0000 | [diff] [blame] | 4888 | - Methods of built-in types now properly check for keyword arguments |
| 4889 | (formerly these were silently ignored). The only built-in methods |
| 4890 | that take keyword arguments are __call__, __init__ and __new__. |
| 4891 | |
Guido van Rossum | 8644321 | 2001-10-27 22:28:54 +0000 | [diff] [blame] | 4892 | - The socket function has been converted to a type; see below. |
| 4893 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4894 | Core and builtins |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4895 | ----------------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4896 | |
Jeremy Hylton | 249aaed | 2001-11-09 21:06:24 +0000 | [diff] [blame] | 4897 | - Assignment to __debug__ raises SyntaxError at compile-time. This |
| 4898 | was promised when 2.1c1 was released as "What's New in Python 2.1c1" |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4899 | (see below) says. |
Jeremy Hylton | 249aaed | 2001-11-09 21:06:24 +0000 | [diff] [blame] | 4900 | |
Guido van Rossum | 12d955c | 2001-10-26 14:56:06 +0000 | [diff] [blame] | 4901 | - Clarified the error messages for unsupported operands to an operator |
| 4902 | (like 1 + ''). |
| 4903 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4904 | Extension modules |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4905 | ----------------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4906 | |
Tim Peters | 5ebfd36 | 2001-11-13 23:11:19 +0000 | [diff] [blame] | 4907 | - mmap has a new keyword argument, "access", allowing a uniform way for |
| 4908 | both Windows and Unix users to create read-only, write-through and |
| 4909 | copy-on-write memory mappings. This was previously possible only on |
| 4910 | Unix. A new keyword argument was required to support this in a |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 4911 | uniform way because the mmap() signatures had diverged across |
Tim Peters | 5ebfd36 | 2001-11-13 23:11:19 +0000 | [diff] [blame] | 4912 | platforms. Thanks to Jay T Miller for repairing this! |
| 4913 | |
Tim Peters | 169ded0 | 2001-11-03 19:57:21 +0000 | [diff] [blame] | 4914 | - By default, the gc.garbage list now contains only those instances in |
| 4915 | unreachable cycles that have __del__ methods; in 2.1 it contained all |
| 4916 | instances in unreachable cycles. "Instances" here has been generalized |
| 4917 | to include instances of both new-style and old-style classes. |
| 4918 | |
Guido van Rossum | 12d955c | 2001-10-26 14:56:06 +0000 | [diff] [blame] | 4919 | - The socket module defines a new method for socket objects, |
| 4920 | sendall(). This is like send() but may make multiple calls to |
Guido van Rossum | 8644321 | 2001-10-27 22:28:54 +0000 | [diff] [blame] | 4921 | send() until all data has been sent. Also, the socket function has |
| 4922 | been converted to a subclassable type, like list and tuple (etc.) |
| 4923 | before it; socket and SocketType are now the same thing. |
Guido van Rossum | 12d955c | 2001-10-26 14:56:06 +0000 | [diff] [blame] | 4924 | |
| 4925 | - Various bugfixes to the curses module. There is now a test suite |
| 4926 | for the curses module (you have to run it manually). |
Andrew M. Kuchling | 15e0353 | 2001-10-22 16:37:10 +0000 | [diff] [blame] | 4927 | |
Guido van Rossum | 692adf1 | 2001-10-30 03:03:03 +0000 | [diff] [blame] | 4928 | - binascii.b2a_base64 no longer places an arbitrary restriction of 57 |
| 4929 | bytes on its input. |
| 4930 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4931 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4932 | ------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4933 | |
Tim Peters | 5ebfd36 | 2001-11-13 23:11:19 +0000 | [diff] [blame] | 4934 | - tkFileDialog exposes a Directory class and askdirectory |
Martin v. Löwis | 25ee87c | 2001-11-07 22:38:08 +0000 | [diff] [blame] | 4935 | convenience function. |
| 4936 | |
Tim Peters | 7533587 | 2001-11-03 19:35:43 +0000 | [diff] [blame] | 4937 | - Symbolic group names in regular expressions must be unique. For |
| 4938 | example, the regexp r'(?P<abc>)(?P<abc>)' is not allowed, because a |
| 4939 | single name can't mean both "group 1" and "group 2" simultaneously. |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4940 | Python 2.2 detects this error at regexp compilation time; |
| 4941 | previously, the error went undetected, and results were |
| 4942 | unpredictable. Also in sre, the pattern.split(), pattern.sub(), and |
| 4943 | pattern.subn() methods have been rewritten in C. Also, an |
| 4944 | experimental function/method finditer() has been added, which works |
| 4945 | like findall() but returns an iterator. |
Tim Peters | 7533587 | 2001-11-03 19:35:43 +0000 | [diff] [blame] | 4946 | |
Martin v. Löwis | b7b3260 | 2001-11-02 23:48:20 +0000 | [diff] [blame] | 4947 | - Tix exposes more commands through the classes DirSelectBox, |
| 4948 | DirSelectDialog, ListNoteBook, Meter, CheckList, and the |
| 4949 | methods tix_addbitmapdir, tix_cget, tix_configure, tix_filedialog, |
| 4950 | tix_getbitmap, tix_getimage, tix_option_get, and tix_resetoptions. |
| 4951 | |
Tim Peters | 98791af | 2001-10-23 01:59:54 +0000 | [diff] [blame] | 4952 | - Traceback objects are now scanned by cyclic garbage collection, so |
| 4953 | cycles created by casual use of sys.exc_info() no longer cause |
| 4954 | permanent memory leaks (provided garbage collection is enabled). |
| 4955 | |
Guido van Rossum | 4919214 | 2001-10-24 20:51:44 +0000 | [diff] [blame] | 4956 | - os.extsep -- a new variable needed by the RISCOS support. It is the |
| 4957 | separator used by extensions, and is '.' on all platforms except |
| 4958 | RISCOS, where it is '/'. There is no need to use this variable |
| 4959 | unless you have a masochistic desire to port your code to RISCOS. |
| 4960 | |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4961 | - mimetypes.py has optional support for non-standard, but commonly |
| 4962 | found types. guess_type() and guess_extension() now accept an |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4963 | optional 'strict' flag, defaulting to true, which controls whether |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4964 | recognize non-standard types or not. A few non-standard types we |
| 4965 | know about have been added. Also, when run as a script, there are |
| 4966 | new -l and -e options. |
| 4967 | |
| 4968 | - statcache is now deprecated. |
| 4969 | |
| 4970 | - email.Utils.formatdate() now produces the preferred RFC 2822 style |
| 4971 | dates with numeric timezones (it used to produce obsolete dates |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4972 | hard coded to "GMT" timezone). An optional 'localtime' flag is |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4973 | added to produce dates in the local timezone, with daylight savings |
| 4974 | time properly taken into account. |
| 4975 | |
| 4976 | - In pickle and cPickle, instead of masking errors in load() by |
| 4977 | transforming them into SystemError, we let the original exception |
| 4978 | propagate out. Also, implement support for __safe_for_unpickling__ |
| 4979 | in pickle, as it already was supported in cPickle. |
| 4980 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4981 | Tools/Demos |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4982 | ----------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4983 | |
| 4984 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4985 | ----- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4986 | |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4987 | - The dbm module is built using libdb1 if available. The bsddb module |
| 4988 | is built with libdb3 if available. |
| 4989 | |
| 4990 | - Misc/Makefile.pre.in has been removed by BDFL pronouncement. |
| 4991 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4992 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 4993 | ----- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 4994 | |
Tim Peters | 1fc240e | 2001-10-26 05:06:50 +0000 | [diff] [blame] | 4995 | - New function PySequence_Fast_GET_SIZE() returns the size of a non- |
| 4996 | NULL result from PySequence_Fast(), more quickly than calling |
| 4997 | PySequence_Size(). |
| 4998 | |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 4999 | - New argument unpacking function PyArg_UnpackTuple() added. |
| 5000 | |
| 5001 | - New functions PyObject_CallFunctionObjArgs() and |
| 5002 | PyObject_CallMethodObjArgs() have been added to make it more |
| 5003 | convenient and efficient to call functions and methods from C. |
| 5004 | |
| 5005 | - PyArg_ParseTupleAndKeywords() no longer masks errors, so it's |
| 5006 | possible that this will propagate errors it didn't before. |
| 5007 | |
| 5008 | - New function PyObject_CheckReadBuffer(), which returns true if its |
| 5009 | argument supports the single-segment readable buffer interface. |
| 5010 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5011 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5012 | ------------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5013 | |
Guido van Rossum | 8644321 | 2001-10-27 22:28:54 +0000 | [diff] [blame] | 5014 | - We've finally confirmed that this release builds on HP-UX 11.00, |
| 5015 | *with* threads, and passes the test suite. |
| 5016 | |
Tim Peters | 7a33d8b | 2001-11-05 02:51:07 +0000 | [diff] [blame] | 5017 | - Thanks to a series of patches from Michael Muller, Python may build |
| 5018 | again under OS/2 Visual Age C++. |
| 5019 | |
Guido van Rossum | 4919214 | 2001-10-24 20:51:44 +0000 | [diff] [blame] | 5020 | - Updated RISCOS port by Dietmar Schwertberger. |
| 5021 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5022 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5023 | ----- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5024 | |
Andrew M. Kuchling | 15e0353 | 2001-10-22 16:37:10 +0000 | [diff] [blame] | 5025 | - Added a test script for the curses module. It isn't run automatically; |
| 5026 | regrtest.py must be run with '-u curses' to enable it. |
| 5027 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5028 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5029 | ------- |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5030 | |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 5031 | Mac |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5032 | ---- |
Barry Warsaw | 012852b | 2001-11-16 16:17:27 +0000 | [diff] [blame] | 5033 | |
| 5034 | - PythonScript has been moved to unsupported and is slated to be |
| 5035 | removed completely in the next release. |
| 5036 | |
| 5037 | - It should now be possible to build applets that work on both OS9 and |
| 5038 | OSX. |
| 5039 | |
| 5040 | - The core is now linked with CoreServices not Carbon; as a side |
| 5041 | result, default 8bit encoding on OSX is now ASCII. |
| 5042 | |
| 5043 | - Python should now build on OSX 10.1.1 |
| 5044 | |
Tim Peters | 84362bc | 2001-10-19 17:55:30 +0000 | [diff] [blame] | 5045 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5046 | What's New in Python 2.2b1? |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5047 | =========================== |
| 5048 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5049 | *Release date: 19-Oct-2001* |
| 5050 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5051 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5052 | -------------------------------------------- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5053 | |
Guido van Rossum | 687ae00 | 2001-10-15 22:03:32 +0000 | [diff] [blame] | 5054 | - New-style classes are now always dynamic (except for built-in and |
Guido van Rossum | 3eea25c | 2001-10-16 00:46:57 +0000 | [diff] [blame] | 5055 | extension types). There is no longer a performance penalty, and I |
Guido van Rossum | 687ae00 | 2001-10-15 22:03:32 +0000 | [diff] [blame] | 5056 | no longer see another reason to keep this baggage around. One relic |
Guido van Rossum | 3eea25c | 2001-10-16 00:46:57 +0000 | [diff] [blame] | 5057 | remains: the __dict__ of a new-style class is a read-only proxy; you |
| 5058 | must set the class's attribute to modify it. As a consequence, the |
Guido van Rossum | 687ae00 | 2001-10-15 22:03:32 +0000 | [diff] [blame] | 5059 | __defined__ attribute of new-style types no longer exists, for lack |
| 5060 | of need: there is once again only one __dict__ (although in the |
Guido van Rossum | 3eea25c | 2001-10-16 00:46:57 +0000 | [diff] [blame] | 5061 | future a __cache__ may be resurrected with a similar function, if I |
| 5062 | can prove that it actually speeds things up). |
Guido van Rossum | 50fda3b | 2001-10-04 19:46:06 +0000 | [diff] [blame] | 5063 | |
Tim Peters | 1c9ca87 | 2001-10-04 06:43:12 +0000 | [diff] [blame] | 5064 | - C.__doc__ now works as expected for new-style classes (in 2.2a4 it |
| 5065 | always returned None, even when there was a class docstring). |
| 5066 | |
| 5067 | - doctest now finds and runs docstrings attached to new-style classes, |
| 5068 | class methods, static methods, and properties. |
| 5069 | |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5070 | Core and builtins |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5071 | ----------------- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5072 | |
Guido van Rossum | a8bcf80 | 2001-10-15 15:53:58 +0000 | [diff] [blame] | 5073 | - A very subtle syntactical pitfall in list comprehensions was fixed. |
| 5074 | For example: [a+b for a in 'abc', for b in 'def']. The comma in |
| 5075 | this example is a mistake. Previously, this would silently let 'a' |
| 5076 | iterate over the singleton tuple ('abc',), yielding ['abcd', 'abce', |
| 5077 | 'abcf'] rather than the intended ['ad', 'ae', 'af', 'bd', 'be', |
| 5078 | 'bf', 'cd', 'ce', 'cf']. Now, this is flagged as a syntax error. |
| 5079 | Note that [a for a in <singleton>] is a convoluted way to say |
| 5080 | [<singleton>] anyway, so it's not like any expressiveness is lost. |
| 5081 | |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5082 | - getattr(obj, name, default) now only catches AttributeError, as |
| 5083 | documented, rather than returning the default value for all |
| 5084 | exceptions (which could mask bugs in a __getattr__ hook, for |
| 5085 | example). |
| 5086 | |
Fred Drake | cb7a6b5 | 2001-10-22 18:41:51 +0000 | [diff] [blame] | 5087 | - Weak reference objects are now part of the core and offer a C API. |
Fred Drake | 934d2a4 | 2001-10-18 18:18:06 +0000 | [diff] [blame] | 5088 | A bug which could allow a core dump when binary operations involved |
Andrew M. Kuchling | 51c1816 | 2001-10-22 01:47:26 +0000 | [diff] [blame] | 5089 | proxy reference has been fixed. weakref.ReferenceError is now a |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5090 | built-in exception. |
Fred Drake | 934d2a4 | 2001-10-18 18:18:06 +0000 | [diff] [blame] | 5091 | |
Guido van Rossum | 1c48609 | 2001-10-19 02:05:35 +0000 | [diff] [blame] | 5092 | - unicode(obj) now behaves more like str(obj), accepting arbitrary |
| 5093 | objects, and calling a __unicode__ method if it exists. |
| 5094 | unicode(obj, encoding) and unicode(obj, encoding, errors) still |
Marc-André Lemburg | b5507ec | 2001-10-19 12:02:29 +0000 | [diff] [blame] | 5095 | require an 8-bit string or character buffer argument. |
Guido van Rossum | 1c48609 | 2001-10-19 02:05:35 +0000 | [diff] [blame] | 5096 | |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5097 | - isinstance() now allows any object as the first argument and a |
| 5098 | class, a type or something with a __bases__ tuple attribute for the |
| 5099 | second argument. The second argument may also be a tuple of a |
| 5100 | class, type, or something with __bases__, in which case isinstance() |
| 5101 | will return true if the first argument is an instance of any of the |
| 5102 | things contained in the second argument tuple. E.g. |
| 5103 | |
| 5104 | isinstance(x, (A, B)) |
| 5105 | |
| 5106 | returns true if x is an instance of A or B. |
| 5107 | |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5108 | Extension modules |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5109 | ----------------- |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5110 | |
| 5111 | - thread.start_new_thread() now returns the thread ID (previously None). |
| 5112 | |
Martin v. Löwis | 16dc7f4 | 2001-09-30 20:32:11 +0000 | [diff] [blame] | 5113 | - binascii has now two quopri support functions, a2b_qp and b2a_qp. |
| 5114 | |
Guido van Rossum | c524d95 | 2001-10-19 01:31:59 +0000 | [diff] [blame] | 5115 | - readline now supports setting the startup_hook and the |
| 5116 | pre_event_hook, and adds the add_history() function. |
Martin v. Löwis | 0daad59 | 2001-09-30 21:09:59 +0000 | [diff] [blame] | 5117 | |
Guido van Rossum | c524d95 | 2001-10-19 01:31:59 +0000 | [diff] [blame] | 5118 | - os and posix supports chroot(), setgroups() and unsetenv() where |
| 5119 | available. The stat(), fstat(), statvfs() and fstatvfs() functions |
| 5120 | now return "pseudo-sequences" -- the various fields can now be |
| 5121 | accessed as attributes (e.g. os.stat("/").st_mtime) but for |
| 5122 | backwards compatibility they also behave as a fixed-length sequence. |
| 5123 | Some platform-specific fields (e.g. st_rdev) are only accessible as |
Guido van Rossum | 98bf58f | 2001-10-18 20:34:25 +0000 | [diff] [blame] | 5124 | attributes. |
| 5125 | |
| 5126 | - time: localtime(), gmtime() and strptime() now return a |
| 5127 | pseudo-sequence similar to the os.stat() return value, with |
| 5128 | attributes like tm_year etc. |
Martin v. Löwis | 16628c9 | 2001-10-04 22:46:41 +0000 | [diff] [blame] | 5129 | |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5130 | - Decompression objects in the zlib module now accept an optional |
| 5131 | second parameter to decompress() that specifies the maximum amount |
| 5132 | of memory to use for the uncompressed data. |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5133 | |
Jeremy Hylton | cb44143 | 2001-10-19 03:40:19 +0000 | [diff] [blame] | 5134 | - optional SSL support in the socket module now exports OpenSSL |
| 5135 | functions RAND_add(), RAND_egd(), and RAND_status(). These calls |
| 5136 | are useful on platforms like Solaris where OpenSSL does not |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5137 | automatically seed its PRNG. Also, the keyfile and certfile |
| 5138 | arguments to socket.ssl() are now optional. |
| 5139 | |
| 5140 | - posixmodule (and by extension, the os module on POSIX platforms) now |
| 5141 | exports O_LARGEFILE, O_DIRECT, O_DIRECTORY, and O_NOFOLLOW. |
Jeremy Hylton | cb44143 | 2001-10-19 03:40:19 +0000 | [diff] [blame] | 5142 | |
Guido van Rossum | 9074ef6 | 2001-10-16 21:34:49 +0000 | [diff] [blame] | 5143 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5144 | ------- |
Guido van Rossum | 3c28863 | 2001-10-16 21:13:49 +0000 | [diff] [blame] | 5145 | |
Tim Peters | 7402f79 | 2001-10-02 03:53:41 +0000 | [diff] [blame] | 5146 | - doctest now excludes functions and classes not defined by the module |
| 5147 | being tested, thanks to Tim Hochberg. |
| 5148 | |
Fred Drake | cb7a6b5 | 2001-10-22 18:41:51 +0000 | [diff] [blame] | 5149 | - HotShot, a new profiler implemented using a C-based callback, has |
| 5150 | been added. This substantially reduces the overhead of profiling, |
| 5151 | but it is still quite preliminary. Support modules and |
| 5152 | documentation will be added in upcoming releases (before 2.2 final). |
| 5153 | |
Guido van Rossum | c4b09b4 | 2001-10-04 10:19:00 +0000 | [diff] [blame] | 5154 | - profile now produces correct output in situations where an exception |
| 5155 | raised in Python is cleared by C code (e.g. hasattr()). This used |
| 5156 | to cause wrong output, including spurious claims of recursive |
| 5157 | functions and attribution of time spent to the wrong function. |
| 5158 | |
Tim Peters | 0a1fc4e | 2001-10-07 03:12:08 +0000 | [diff] [blame] | 5159 | The code and documentation for the derived OldProfile and HotProfile |
| 5160 | profiling classes was removed. The code hasn't worked for years (if |
| 5161 | you tried to use them, they raised exceptions). OldProfile |
| 5162 | intended to reproduce the behavior of the profiler Python used more |
| 5163 | than 7 years ago, and isn't interesting anymore. HotProfile intended |
| 5164 | to provide a faster profiler (but producing less information), and |
| 5165 | that's a worthy goal we intend to meet via a different approach (but |
| 5166 | without losing information). |
| 5167 | |
Tim Peters | cce092d | 2001-10-09 05:31:56 +0000 | [diff] [blame] | 5168 | - Profile.calibrate() has a new implementation that should deliver |
Tim Peters | 659a603 | 2001-10-09 20:51:19 +0000 | [diff] [blame] | 5169 | a much better system-specific calibration constant. The constant can |
| 5170 | now be specified in an instance constructor, or as a Profile class or |
| 5171 | instance variable, instead of by editing profile.py's source code. |
| 5172 | Calibration must still be done manually (see the docs for the profile |
| 5173 | module). |
| 5174 | |
Raymond Hettinger | d65ec37 | 2003-03-11 21:43:55 +0000 | [diff] [blame] | 5175 | Note that Profile.calibrate() must be overridden by subclasses. |
Tim Peters | 659a603 | 2001-10-09 20:51:19 +0000 | [diff] [blame] | 5176 | Improving the accuracy required exploiting detailed knowledge of |
| 5177 | profiler internals; the earlier method abstracted away the details |
| 5178 | and measured a simplified model instead, but consequently computed |
| 5179 | a constant too small by a factor of 2 on some modern machines. |
Tim Peters | cce092d | 2001-10-09 05:31:56 +0000 | [diff] [blame] | 5180 | |
Martin v. Löwis | 16dc7f4 | 2001-09-30 20:32:11 +0000 | [diff] [blame] | 5181 | - quopri's encode and decode methods take an optional header parameter, |
Jeremy Hylton | 6f543b6 | 2001-10-16 20:42:52 +0000 | [diff] [blame] | 5182 | which indicates whether output is intended for the header 'Q' |
| 5183 | encoding. |
| 5184 | |
Guido van Rossum | a5343cc | 2001-10-18 18:02:07 +0000 | [diff] [blame] | 5185 | - The SocketServer.ThreadingMixIn class now closes the request after |
| 5186 | finish_request() returns. (Not when it errors out though.) |
| 5187 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5188 | - The nntplib module's NNTP.body() method has grown a 'file' argument |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5189 | to allow saving the message body to a file. |
| 5190 | |
| 5191 | - The email package has added a class email.Parser.HeaderParser which |
| 5192 | only parses headers and does not recurse into the message's body. |
| 5193 | Also, the module/class MIMEAudio has been added for representing |
| 5194 | audio data (contributed by Anthony Baxter). |
| 5195 | |
| 5196 | - ftplib should be able to handle files > 2GB. |
| 5197 | |
| 5198 | - ConfigParser.getboolean() now also interprets TRUE, FALSE, YES, NO, |
| 5199 | ON, and OFF. |
| 5200 | |
Fred Drake | cb7a6b5 | 2001-10-22 18:41:51 +0000 | [diff] [blame] | 5201 | - xml.dom.minidom NodeList objects now support the length attribute |
| 5202 | and item() method as required by the DOM specifications. |
| 5203 | |
Guido van Rossum | ed554f6 | 2001-10-02 23:15:37 +0000 | [diff] [blame] | 5204 | Tools/Demos |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5205 | ----------- |
Guido van Rossum | ed554f6 | 2001-10-02 23:15:37 +0000 | [diff] [blame] | 5206 | |
| 5207 | - Demo/dns was removed. It no longer serves any purpose; a package |
| 5208 | derived from it is now maintained by Anthony Baxter, see |
| 5209 | http://PyDNS.SourceForge.net. |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5210 | |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5211 | - The freeze tool has been made more robust, and two new options have |
| 5212 | been added: -X and -E. |
| 5213 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5214 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5215 | ----- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5216 | |
Barry Warsaw | f6fb171 | 2001-10-19 05:35:40 +0000 | [diff] [blame] | 5217 | - configure will use CXX in LINKCC if CXX is used to build main() and |
| 5218 | the system requires to link a C++ main using the C++ compiler. |
| 5219 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5220 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5221 | ----- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5222 | |
Guido van Rossum | 6c4bce3 | 2001-10-18 19:20:25 +0000 | [diff] [blame] | 5223 | - The documentation for the tp_compare slot is updated to require that |
| 5224 | the return value must be -1, 0, 1; an arbitrary number <0 or >0 is |
| 5225 | not correct. This is not yet enforced but will be enforced in |
| 5226 | Python 2.3; even later, we may use -2 to indicate errors and +2 for |
| 5227 | "NotImplemented". Right now, -1 should be used for an error return. |
| 5228 | |
Tim Peters | d38b1c7 | 2001-09-30 05:09:37 +0000 | [diff] [blame] | 5229 | - PyLong_AsLongLong() now accepts int (as well as long) arguments. |
| 5230 | Consequently, PyArg_ParseTuple's 'L' code also accepts int (as well |
| 5231 | as long) arguments. |
| 5232 | |
Guido van Rossum | 3c28863 | 2001-10-16 21:13:49 +0000 | [diff] [blame] | 5233 | - PyThread_start_new_thread() now returns a long int giving the thread |
| 5234 | ID, if one can be calculated; it returns -1 for error, 0 if no |
| 5235 | thread ID is calculated (this is an incompatible change, but only |
| 5236 | the thread module used this API). This code has only really been |
| 5237 | tested on Linux and Windows; other platforms please beware (and |
| 5238 | report any bugs or strange behavior). |
| 5239 | |
Guido van Rossum | 1c48609 | 2001-10-19 02:05:35 +0000 | [diff] [blame] | 5240 | - PyUnicode_FromEncodedObject() no longer accepts Unicode objects as |
| 5241 | input. |
| 5242 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5243 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5244 | ------------- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5245 | |
| 5246 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5247 | ----- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5248 | |
| 5249 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5250 | ------- |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5251 | |
Tim Peters | 04cf1d3 | 2001-10-09 22:39:40 +0000 | [diff] [blame] | 5252 | - Installer: If you install IDLE, and don't disable file-extension |
| 5253 | registration, a new "Edit with IDLE" context (right-click) menu entry |
| 5254 | is created for .py and .pyw files. |
| 5255 | |
Tim Peters | 1ce3cf7 | 2001-10-01 17:58:40 +0000 | [diff] [blame] | 5256 | - The signal module now supports SIGBREAK on Windows, thanks to Steven |
| 5257 | Scott. Note that SIGBREAK is unique to Windows. The default SIGBREAK |
| 5258 | action remains to call Win32 ExitProcess(). This can be changed via |
Skip Montanaro | a2a07bc | 2002-09-30 15:23:01 +0000 | [diff] [blame] | 5259 | signal.signal(). For example:: |
Tim Peters | 1ce3cf7 | 2001-10-01 17:58:40 +0000 | [diff] [blame] | 5260 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5261 | # Make Ctrl+Break raise KeyboardInterrupt, like Python's default Ctrl+C |
| 5262 | # (SIGINT) behavior. |
| 5263 | import signal |
| 5264 | signal.signal(signal.SIGBREAK, signal.default_int_handler) |
Tim Peters | 1ce3cf7 | 2001-10-01 17:58:40 +0000 | [diff] [blame] | 5265 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5266 | try: |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 5267 | while 1: |
| 5268 | pass |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5269 | except KeyboardInterrupt: |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 5270 | # We get here on Ctrl+C or Ctrl+Break now; if we had not changed |
| 5271 | # SIGBREAK, only on Ctrl+C (and Ctrl+Break would terminate the |
| 5272 | # program without the possibility for any Python-level cleanup). |
| 5273 | print "Clean exit" |
Tim Peters | 1ce3cf7 | 2001-10-01 17:58:40 +0000 | [diff] [blame] | 5274 | |
Tim Peters | abf925f | 2001-09-28 21:53:42 +0000 | [diff] [blame] | 5275 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5276 | What's New in Python 2.2a4? |
| 5277 | =========================== |
| 5278 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5279 | *Release date: 28-Sep-2001* |
| 5280 | |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5281 | Type/class unification and new-style classes |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5282 | -------------------------------------------- |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5283 | |
| 5284 | - pydoc and inspect are now aware of new-style classes; |
| 5285 | e.g. help(list) at the interactive prompt now shows proper |
| 5286 | documentation for all operations on list objects. |
| 5287 | |
| 5288 | - Applications using Jim Fulton's ExtensionClass module can now safely |
| 5289 | be used with Python 2.2. In particular, Zope 2.4.1 now works with |
| 5290 | Python 2.2 (as well as with Python 2.1.1). The Demo/metaclass |
| 5291 | examples also work again. It is hoped that Gtk and Boost also work |
| 5292 | with 2.2a4 and beyond. (If you can confirm this, please write |
| 5293 | webmaster@python.org; if there are still problems, please open a bug |
| 5294 | report on SourceForge.) |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5295 | |
Tim Peters | 66c1a52 | 2001-09-24 21:17:50 +0000 | [diff] [blame] | 5296 | - property() now takes 4 keyword arguments: fget, fset, fdel and doc. |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 5297 | These map to read-only attributes 'fget', 'fset', 'fdel', and '__doc__' |
Tim Peters | 66c1a52 | 2001-09-24 21:17:50 +0000 | [diff] [blame] | 5298 | in the constructed property object. fget, fset and fdel weren't |
| 5299 | discoverable from Python in 2.2a3. __doc__ is new, and allows to |
| 5300 | associate a docstring with a property. |
| 5301 | |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5302 | - Comparison overloading is now more completely implemented. For |
| 5303 | example, a str subclass instance can properly be compared to a str |
| 5304 | instance, and it can properly overload comparison. Ditto for most |
| 5305 | other built-in object types. |
| 5306 | |
| 5307 | - The repr() of new-style classes has changed; instead of <type |
| 5308 | 'M.Foo'> a new-style class is now rendered as <class 'M.Foo'>, |
| 5309 | *except* for built-in types, which are still rendered as <type |
| 5310 | 'Foo'> (to avoid upsetting existing code that might parse or |
| 5311 | otherwise rely on repr() of certain type objects). |
| 5312 | |
| 5313 | - The repr() of new-style objects is now always <Foo object at XXX>; |
| 5314 | previously, it was sometimes <Foo instance at XXX>. |
| 5315 | |
| 5316 | - For new-style classes, what was previously called __getattr__ is now |
| 5317 | called __getattribute__. This method, if defined, is called for |
Andrew M. Kuchling | 51c1816 | 2001-10-22 01:47:26 +0000 | [diff] [blame] | 5318 | *every* attribute access. A new __getattr__ hook more similar to the |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5319 | one in classic classes is defined which is called only if regular |
| 5320 | attribute access raises AttributeError; to catch *all* attribute |
| 5321 | access, you can use __getattribute__ (for new-style classes). If |
| 5322 | both are defined, __getattribute__ is called first, and if it raises |
| 5323 | AttributeError, __getattr__ is called. |
| 5324 | |
| 5325 | - The __class__ attribute of new-style objects can be assigned to. |
| 5326 | The new class must have the same C-level object layout as the old |
| 5327 | class. |
| 5328 | |
| 5329 | - The builtin file type can be subclassed now. In the usual pattern, |
| 5330 | "file" is the name of the builtin type, and file() is a new builtin |
| 5331 | constructor, with the same signature as the builtin open() function. |
| 5332 | file() is now the preferred way to open a file. |
| 5333 | |
| 5334 | - Previously, __new__ would only see sequential arguments passed to |
| 5335 | the type in a constructor call; __init__ would see both sequential |
| 5336 | and keyword arguments. This made no sense whatsoever any more, so |
| 5337 | now both __new__ and __init__ see all arguments. |
| 5338 | |
| 5339 | - Previously, hash() applied to an instance of a subclass of str or |
| 5340 | unicode always returned 0. This has been repaired. |
| 5341 | |
| 5342 | - Previously, an operation on an instance of a subclass of an |
| 5343 | immutable type (int, long, float, complex, tuple, str, unicode), |
| 5344 | where the subtype didn't override the operation (and so the |
| 5345 | operation was handled by the builtin type), could return that |
| 5346 | instance instead a value of the base type. For example, if s was of |
Andrew M. Kuchling | 21b23b0 | 2002-05-07 20:58:03 +0000 | [diff] [blame] | 5347 | a str subclass type, s[:] returned s as-is. Now it returns a str |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5348 | with the same value as s. |
| 5349 | |
Barry Warsaw | 86fbaf8 | 2001-09-28 15:26:12 +0000 | [diff] [blame] | 5350 | - Provisional support for pickling new-style objects has been added. |
| 5351 | |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5352 | Core |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5353 | ---- |
Guido van Rossum | 808eea7 | 2001-09-25 04:15:41 +0000 | [diff] [blame] | 5354 | |
Tim Peters | 2c9aa5e | 2001-09-23 04:06:05 +0000 | [diff] [blame] | 5355 | - file.writelines() now accepts any iterable object producing strings. |
| 5356 | |
Marc-André Lemburg | aefd766 | 2001-09-20 12:59:37 +0000 | [diff] [blame] | 5357 | - PyUnicode_FromEncodedObject() now works very much like |
| 5358 | PyObject_Str(obj) in that it tries to use __str__/tp_str |
| 5359 | on the object if the object is not a string or buffer. This |
| 5360 | makes unicode() behave like str() when applied to non-string/buffer |
| 5361 | objects. |
| 5362 | |
Andrew M. Kuchling | 51c1816 | 2001-10-22 01:47:26 +0000 | [diff] [blame] | 5363 | - PyFile_WriteObject now passes Unicode objects to the file's write |
| 5364 | method. As a result, all file-like objects which may be the target |
Martin v. Löwis | 2777c02 | 2001-09-19 13:47:32 +0000 | [diff] [blame] | 5365 | of a print statement must support Unicode objects, i.e. they must |
| 5366 | at least convert them into ASCII strings. |
| 5367 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5368 | - Thread scheduling on Solaris should be improved; it is no longer |
| 5369 | necessary to insert a small sleep at the start of a thread in order |
| 5370 | to let other runnable threads be scheduled. |
| 5371 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5372 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5373 | ------- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5374 | |
Marc-André Lemburg | bf99017 | 2001-09-27 14:17:33 +0000 | [diff] [blame] | 5375 | - StringIO.StringIO instances and cStringIO.StringIO instances support |
| 5376 | read character buffer compatible objects for their .write() methods. |
| 5377 | These objects are converted to strings and then handled as such |
| 5378 | by the instances. |
| 5379 | |
Barry Warsaw | 2f60073 | 2001-09-24 04:28:10 +0000 | [diff] [blame] | 5380 | - The "email" package has been added. This is basically a port of the |
| 5381 | mimelib package <http://sf.net/projects/mimelib> with API changes |
| 5382 | and some implementations updated to use iterators and generators. |
| 5383 | |
Tim Peters | 8a9c284 | 2001-09-22 21:30:22 +0000 | [diff] [blame] | 5384 | - difflib.ndiff() and difflib.Differ.compare() are generators now. This |
| 5385 | restores the ability of Tools/scripts/ndiff.py to start producing output |
| 5386 | before the entire comparison is complete. |
| 5387 | |
Barry Warsaw | 58b072d | 2001-09-22 04:44:21 +0000 | [diff] [blame] | 5388 | - StringIO.StringIO instances and cStringIO.StringIO instances support |
| 5389 | iteration just like file objects (i.e. their .readline() method is |
| 5390 | called for each iteration until it returns an empty string). |
| 5391 | |
Marc-André Lemburg | 494f2ae | 2001-09-19 11:33:31 +0000 | [diff] [blame] | 5392 | - The codecs module has grown four new helper APIs to access |
| 5393 | builtin codecs: getencoder(), getdecoder(), getreader(), |
| 5394 | getwriter(). |
| 5395 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5396 | - SimpleXMLRPCServer: a new module (based upon SimpleHTMLServer) |
| 5397 | simplifies writing XML RPC servers. |
| 5398 | |
Barry Warsaw | 647d5e8 | 2001-09-28 17:01:02 +0000 | [diff] [blame] | 5399 | - os.path.realpath(): a new function that returns the absolute pathname |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5400 | after interpretation of symbolic links. On non-Unix systems, this |
| 5401 | is an alias for os.path.abspath(). |
| 5402 | |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 5403 | - operator.indexOf() (PySequence_Index() in the C API) now works with any |
| 5404 | iterable object. |
| 5405 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5406 | - smtplib now supports various authentication and security features of |
| 5407 | the SMTP protocol through the new login() and starttls() methods. |
Guido van Rossum | d8185ca | 2001-09-14 16:35:16 +0000 | [diff] [blame] | 5408 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5409 | - hmac: a new module implementing keyed hashing for message |
| 5410 | authentication. |
| 5411 | |
| 5412 | - mimetypes now recognizes more extensions and file types. At the |
| 5413 | same time, some mappings not sanctioned by IANA were removed. |
Guido van Rossum | d8185ca | 2001-09-14 16:35:16 +0000 | [diff] [blame] | 5414 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5415 | - The "compiler" package has been brought up to date to the state of |
Guido van Rossum | c9ed5dc | 2001-09-20 05:30:24 +0000 | [diff] [blame] | 5416 | Python 2.2 bytecode generation. It has also been promoted from a |
| 5417 | Tool to a standard library package. (Tools/compiler still exists as |
| 5418 | a sample driver.) |
| 5419 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5420 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5421 | ----- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5422 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5423 | - Large file support (LFS) is now automatic when the platform supports |
| 5424 | it; no more manual configuration tweaks are needed. On Linux, at |
| 5425 | least, it's possible to have a system whose C library supports large |
| 5426 | files but whose kernel doesn't; in this case, large file support is |
| 5427 | still enabled but doesn't do you any good unless you upgrade your |
| 5428 | kernel or share your Python executable with another system whose |
| 5429 | kernel has large file support. |
| 5430 | |
| 5431 | - The configure script now supplies plausible defaults in a |
| 5432 | cross-compilation environment. This doesn't mean that the supplied |
| 5433 | values are always correct, or that cross-compilation now works |
| 5434 | flawlessly -- but it's a first step (and it shuts up most of |
| 5435 | autoconf's warnings about AC_TRY_RUN). |
| 5436 | |
| 5437 | - The Unix build is now a bit less chatty, courtesy of the parser |
| 5438 | generator. The build is completely silent (except for errors) when |
| 5439 | using "make -s", thanks to a -q option to setup.py. |
| 5440 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5441 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5442 | ----- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5443 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5444 | - The "structmember" API now supports some new flag bits to deny read |
| 5445 | and/or write access to attributes in restricted execution mode. |
| 5446 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5447 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5448 | ------------- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5449 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5450 | - Compaq's iPAQ handheld, running the "familiar" Linux distribution |
| 5451 | (http://familiar.handhelds.org). |
| 5452 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5453 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5454 | ----- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5455 | |
Tim Peters | 8a9c284 | 2001-09-22 21:30:22 +0000 | [diff] [blame] | 5456 | - The "classic" standard tests, which work by comparing stdout to |
| 5457 | an expected-output file under Lib/test/output/, no longer stop at |
| 5458 | the first mismatch. Instead the test is run to completion, and a |
| 5459 | variant of ndiff-style comparison is used to report all differences. |
| 5460 | This is much easier to understand than the previous style of reporting. |
| 5461 | |
| 5462 | - The unittest-based standard tests now use regrtest's test_main() |
| 5463 | convention, instead of running as a side-effect of merely being |
| 5464 | imported. This allows these tests to be run in more natural and |
| 5465 | flexible ways as unittests, outside the regrtest framework. |
| 5466 | |
| 5467 | - regrtest.py is much better integrated with unittest and doctest now, |
| 5468 | especially in regard to reporting errors. |
| 5469 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5470 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5471 | ------- |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5472 | |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5473 | - Large file support now also works for files > 4GB, on filesystems |
Tim Peters | 8a9c284 | 2001-09-22 21:30:22 +0000 | [diff] [blame] | 5474 | that support it (NTFS under Windows 2000). See "What's New in |
| 5475 | Python 2.2a3" for more detail. |
Guido van Rossum | 624c8af | 2001-09-18 15:21:04 +0000 | [diff] [blame] | 5476 | |
Tim Peters | b07352e | 2001-09-08 01:25:47 +0000 | [diff] [blame] | 5477 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5478 | What's New in Python 2.2a3? |
| 5479 | =========================== |
| 5480 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5481 | *Release Date: 07-Sep-2001* |
| 5482 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5483 | Core |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5484 | ---- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5485 | |
Tim Peters | 9fffa3e | 2001-09-04 05:14:19 +0000 | [diff] [blame] | 5486 | - Conversion of long to float now raises OverflowError if the long is too |
| 5487 | big to represent as a C double. |
| 5488 | |
Tim Peters | 32f453e | 2001-09-03 08:35:41 +0000 | [diff] [blame] | 5489 | - The 3-argument builtin pow() no longer allows a third non-None argument |
| 5490 | if either of the first two arguments is a float, or if both are of |
| 5491 | integer types and the second argument is negative (in which latter case |
| 5492 | the arguments are converted to float, so this is really the same |
| 5493 | restriction). |
| 5494 | |
Tim Peters | 5d2b77c | 2001-09-03 05:47:38 +0000 | [diff] [blame] | 5495 | - The builtin dir() now returns more information, and sometimes much |
| 5496 | more, generally naming all attributes of an object, and all attributes |
| 5497 | reachable from the object via its class, and from its class's base |
| 5498 | classes, and so on from them too. Example: in 2.2a2, dir([]) returned |
| 5499 | an empty list. In 2.2a3, |
| 5500 | |
| 5501 | >>> dir([]) |
| 5502 | ['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', |
| 5503 | '__eq__', '__ge__', '__getattr__', '__getitem__', '__getslice__', |
| 5504 | '__gt__', '__hash__', '__iadd__', '__imul__', '__init__', '__le__', |
| 5505 | '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__repr__', |
| 5506 | '__rmul__', '__setattr__', '__setitem__', '__setslice__', '__str__', |
| 5507 | 'append', 'count', 'extend', 'index', 'insert', 'pop', 'remove', |
| 5508 | 'reverse', 'sort'] |
| 5509 | |
| 5510 | dir(module) continues to return only the module's attributes, though. |
| 5511 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5512 | - Overflowing operations on plain ints now return a long int rather |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5513 | than raising OverflowError. This is a partial implementation of PEP |
| 5514 | 237. You can use -Wdefault::OverflowWarning to enable a warning for |
| 5515 | this situation, and -Werror::OverflowWarning to revert to the old |
| 5516 | OverflowError exception. |
| 5517 | |
Guido van Rossum | 61c345f | 2001-09-04 03:26:15 +0000 | [diff] [blame] | 5518 | - A new command line option, -Q<arg>, is added to control run-time |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5519 | warnings for the use of classic division. (See PEP 238.) Possible |
Barry Warsaw | d6c8ca6 | 2001-09-07 18:13:44 +0000 | [diff] [blame] | 5520 | values are -Qold, -Qwarn, -Qwarnall, and -Qnew. The default is |
| 5521 | -Qold, meaning the / operator has its classic meaning and no |
| 5522 | warnings are issued. Using -Qwarn issues a run-time warning about |
| 5523 | all uses of classic division for int and long arguments; -Qwarnall |
| 5524 | also warns about classic division for float and complex arguments |
Tim Peters | 3caca23 | 2001-12-06 06:23:26 +0000 | [diff] [blame] | 5525 | (for use with fixdiv.py). |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5526 | [Note: the remainder of this item (preserved below) became |
| 5527 | obsolete in 2.2c1 -- -Qnew has global effect in 2.2] :: |
| 5528 | |
| 5529 | Using -Qnew is questionable; it turns on new division by default, but |
| 5530 | only in the __main__ module. You can usefully combine -Qwarn or |
| 5531 | -Qwarnall and -Qnew: this gives the __main__ module new division, and |
| 5532 | warns about classic division everywhere else. |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5533 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5534 | - Many built-in types can now be subclassed. This applies to int, |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5535 | long, float, str, unicode, and tuple. (The types complex, list and |
| 5536 | dictionary can also be subclassed; this was introduced earlier.) |
| 5537 | Note that restrictions apply when subclassing immutable built-in |
| 5538 | types: you can only affect the value of the instance by overloading |
| 5539 | __new__. You can add mutable attributes, and the subclass instances |
| 5540 | will have a __dict__ attribute, but you cannot change the "value" |
| 5541 | (as implemented by the base class) of an immutable subclass instance |
| 5542 | once it is created. |
| 5543 | |
Guido van Rossum | aaf80c8 | 2001-09-02 13:44:35 +0000 | [diff] [blame] | 5544 | - The dictionary constructor now takes an optional argument, a |
| 5545 | mapping-like object, and initializes the dictionary from its |
| 5546 | (key, value) pairs. |
| 5547 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5548 | - A new built-in type, super, has been added. This facilitates making |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5549 | "cooperative super calls" in a multiple inheritance setting. For an |
| 5550 | explanation, see http://www.python.org/2.2/descrintro.html#cooperation |
| 5551 | |
Guido van Rossum | 8d7234d | 2001-09-06 22:02:58 +0000 | [diff] [blame] | 5552 | - A new built-in type, property, has been added. This enables the |
| 5553 | creation of "properties". These are attributes implemented by |
| 5554 | getter and setter functions (or only one of these for read-only or |
| 5555 | write-only attributes), without the need to override __getattr__. |
| 5556 | See http://www.python.org/2.2/descrintro.html#property |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5557 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5558 | - The syntax of floating-point and imaginary literals has been |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 5559 | liberalized, to allow leading zeroes. Examples of literals now |
| 5560 | legal that were SyntaxErrors before: |
| 5561 | |
| 5562 | 00.0 0e3 0100j 07.5 00000000000000000008. |
| 5563 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5564 | - An old tokenizer bug allowed floating point literals with an incomplete |
Tim Peters | c6d9581 | 2001-08-28 20:56:27 +0000 | [diff] [blame] | 5565 | exponent, such as 1e and 3.1e-. Such literals now raise SyntaxError. |
| 5566 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5567 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5568 | ------- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5569 | |
Martin v. Löwis | cb227c9 | 2001-09-06 08:54:16 +0000 | [diff] [blame] | 5570 | - telnetlib includes symbolic names for the options, and support for |
Martin v. Löwis | 1da9c57 | 2002-11-04 09:56:00 +0000 | [diff] [blame] | 5571 | setting an option negotiation callback. It also supports processing |
| 5572 | of suboptions. |
Martin v. Löwis | cb227c9 | 2001-09-06 08:54:16 +0000 | [diff] [blame] | 5573 | |
Tim Peters | a40c793 | 2001-09-05 22:36:56 +0000 | [diff] [blame] | 5574 | - The new C standard no longer requires that math libraries set errno to |
| 5575 | ERANGE on overflow. For platform libraries that exploit this new |
| 5576 | freedom, Python's overflow-checking was wholly broken. A new overflow- |
| 5577 | checking scheme attempts to repair that, but may not be reliable on all |
| 5578 | platforms (C doesn't seem to provide anything both useful and portable |
| 5579 | in this area anymore). |
| 5580 | |
Martin v. Löwis | 44f8696 | 2001-09-05 13:44:54 +0000 | [diff] [blame] | 5581 | - Asynchronous timeout actions are available through the new class |
| 5582 | threading.Timer. |
| 5583 | |
Tim Peters | 7852616 | 2001-09-05 00:53:45 +0000 | [diff] [blame] | 5584 | - math.log and math.log10 now return sensible results for even huge |
| 5585 | long arguments. For example, math.log10(10 ** 10000) ~= 10000.0. |
| 5586 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5587 | - A new function, imp.lock_held(), returns 1 when the import lock is |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 5588 | currently held. See the docs for the imp module. |
| 5589 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5590 | - pickle, cPickle and marshal on 32-bit platforms can now correctly read |
Tim Peters | 8211237 | 2001-08-29 02:28:42 +0000 | [diff] [blame] | 5591 | dumps containing ints written on platforms where Python ints are 8 bytes. |
| 5592 | When read on a box where Python ints are 4 bytes, such values are |
| 5593 | converted to Python longs. |
| 5594 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5595 | - In restricted execution mode (using the rexec module), unmarshalling |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5596 | code objects is no longer allowed. This plugs a security hole. |
| 5597 | |
Steve Purcell | 6091cd6 | 2001-09-06 16:05:17 +0000 | [diff] [blame] | 5598 | - unittest.TestResult instances no longer store references to tracebacks |
| 5599 | generated by test failures. This prevents unexpected dangling references |
| 5600 | to objects that should be garbage collected between tests. |
| 5601 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5602 | Tools |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5603 | ----- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5604 | |
Barry Warsaw | d6c8ca6 | 2001-09-07 18:13:44 +0000 | [diff] [blame] | 5605 | - Tools/scripts/fixdiv.py has been added which can be used to fix |
| 5606 | division operators as per PEP 238. |
| 5607 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5608 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5609 | ----- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5610 | |
Barry Warsaw | d6c8ca6 | 2001-09-07 18:13:44 +0000 | [diff] [blame] | 5611 | - If you are an adventurous person using Mac OS X you may want to look at |
| 5612 | Mac/OSX. There is a Makefile there that will build Python as a real Mac |
| 5613 | application, which can be used for experimenting with Carbon or Cocoa. |
| 5614 | Discussion of this on pythonmac-sig, please. |
| 5615 | |
Tim Peters | 7eea37e | 2001-09-04 22:08:56 +0000 | [diff] [blame] | 5616 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5617 | ----- |
Tim Peters | 7eea37e | 2001-09-04 22:08:56 +0000 | [diff] [blame] | 5618 | |
| 5619 | - New function PyObject_Dir(obj), like Python __builtin__.dir(obj). |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 5620 | |
Tim Peters | 9fffa3e | 2001-09-04 05:14:19 +0000 | [diff] [blame] | 5621 | - Note that PyLong_AsDouble can fail! This has always been true, but no |
| 5622 | callers checked for it. It's more likely to fail now, because overflow |
Skip Montanaro | a2a07bc | 2002-09-30 15:23:01 +0000 | [diff] [blame] | 5623 | errors are properly detected now. The proper way to check:: |
Tim Peters | 9fffa3e | 2001-09-04 05:14:19 +0000 | [diff] [blame] | 5624 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5625 | double x = PyLong_AsDouble(some_long_object); |
| 5626 | if (x == -1.0 && PyErr_Occurred()) { |
Raymond Hettinger | af72d52 | 2002-12-29 20:14:11 +0000 | [diff] [blame] | 5627 | /* The conversion failed. */ |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5628 | } |
Tim Peters | 9fffa3e | 2001-09-04 05:14:19 +0000 | [diff] [blame] | 5629 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5630 | - The GC API has been changed. Extensions that use the old API will still |
Neil Schemenauer | 4042c69 | 2001-08-30 15:38:01 +0000 | [diff] [blame] | 5631 | compile but will not participate in GC. To upgrade an extension |
| 5632 | module: |
| 5633 | |
| 5634 | - rename Py_TPFLAGS_GC to PyTPFLAGS_HAVE_GC |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 5635 | |
Neil Schemenauer | 4042c69 | 2001-08-30 15:38:01 +0000 | [diff] [blame] | 5636 | - use PyObject_GC_New or PyObject_GC_NewVar to allocate objects and |
| 5637 | PyObject_GC_Del to deallocate them |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 5638 | |
Neil Schemenauer | 4042c69 | 2001-08-30 15:38:01 +0000 | [diff] [blame] | 5639 | - rename PyObject_GC_Init to PyObject_GC_Track and PyObject_GC_Fini |
| 5640 | to PyObject_GC_UnTrack |
Tim Peters | d507dab | 2001-08-30 20:51:59 +0000 | [diff] [blame] | 5641 | |
Neil Schemenauer | 4042c69 | 2001-08-30 15:38:01 +0000 | [diff] [blame] | 5642 | - remove PyGC_HEAD_SIZE from object size calculations |
| 5643 | |
| 5644 | - remove calls to PyObject_AS_GC and PyObject_FROM_GC |
| 5645 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5646 | - Two new functions: PyString_FromFormat() and PyString_FromFormatV(). |
Guido van Rossum | ae45714 | 2001-08-31 18:31:35 +0000 | [diff] [blame] | 5647 | These can be used safely to construct string objects from a |
| 5648 | sprintf-style format string (similar to the format string supported |
| 5649 | by PyErr_Format()). |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 5650 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5651 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5652 | ------------- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5653 | |
Tim Peters | b7da090 | 2001-09-02 23:01:43 +0000 | [diff] [blame] | 5654 | - Stephen Hansen contributed patches sufficient to get a clean compile |
| 5655 | under Borland C (Windows), but he reports problems running it and ran |
| 5656 | out of time to complete the port. Volunteers? Expect a MemoryError |
| 5657 | when importing the types module; this is probably shallow, and |
| 5658 | causing later failures too. |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5659 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5660 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5661 | ----- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5662 | |
| 5663 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5664 | ------- |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5665 | |
Tim Peters | 6e13a56 | 2001-09-06 00:32:15 +0000 | [diff] [blame] | 5666 | - Large file support is now enabled on Win32 platforms as well as on |
| 5667 | Win64. This means that, for example, you can use f.tell() and f.seek() |
| 5668 | to manipulate files larger than 2 gigabytes (provided you have enough |
| 5669 | disk space, and are using a Windows filesystem that supports large |
Tim Peters | 9a9471c | 2001-09-11 23:18:51 +0000 | [diff] [blame] | 5670 | partitions). Windows filesystem limits: FAT has a 2GB (gigabyte) |
| 5671 | filesize limit, and large file support makes no difference there. |
| 5672 | FAT32's limit is 4GB, and files >= 2GB are easier to use from Python now. |
| 5673 | NTFS has no practical limit on file size, and files of any size can be |
| 5674 | used from Python now. |
Tim Peters | 6e13a56 | 2001-09-06 00:32:15 +0000 | [diff] [blame] | 5675 | |
Tim Peters | bdee63f | 2001-09-02 03:40:59 +0000 | [diff] [blame] | 5676 | - The w9xpopen hack is now used on Windows NT and 2000 too when COMPSPEC |
Tim Peters | 402d598 | 2001-08-27 06:37:48 +0000 | [diff] [blame] | 5677 | points to command.com (patch from Brian Quinlan). |
| 5678 | |
Tim Peters | edc9931 | 2001-08-22 21:36:50 +0000 | [diff] [blame] | 5679 | |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5680 | What's New in Python 2.2a2? |
| 5681 | =========================== |
| 5682 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5683 | *Release Date: 22-Aug-2001* |
| 5684 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 5685 | Build |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5686 | ----- |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 5687 | |
Barry Warsaw | 18b2ecf | 2001-08-22 20:26:56 +0000 | [diff] [blame] | 5688 | - Tim Peters developed a brand new Windows installer using Wise 8.1, |
| 5689 | generously donated to us by Wise Solutions. |
| 5690 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 5691 | - configure supports a new option --enable-unicode, with the values |
| 5692 | ucs2 and ucs4 (new in 2.2a1). With --disable-unicode, the Unicode |
| 5693 | type and supporting code is completely removed from the interpreter. |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5694 | |
Jack Jansen | 32ce0cd | 2001-08-21 19:28:20 +0000 | [diff] [blame] | 5695 | - A new configure option --enable-framework builds a Mac OS X framework, |
| 5696 | which "make frameworkinstall" will install. This provides a starting |
| 5697 | point for more mac-like functionality, join pythonmac-sig@python.org |
| 5698 | if you are interested in helping. |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 5699 | |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5700 | - The NeXT platform is no longer supported. |
| 5701 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5702 | - The 'new' module is now statically linked. |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5703 | |
Tim Peters | 0afb609 | 2001-08-15 06:06:44 +0000 | [diff] [blame] | 5704 | Tools |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5705 | ----- |
Tim Peters | 0afb609 | 2001-08-15 06:06:44 +0000 | [diff] [blame] | 5706 | |
| 5707 | - The new Tools/scripts/cleanfuture.py can be used to automatically |
Andrew M. Kuchling | b053209 | 2001-08-15 15:54:56 +0000 | [diff] [blame] | 5708 | edit out obsolete future statements from Python source code. See |
Tim Peters | 0afb609 | 2001-08-15 06:06:44 +0000 | [diff] [blame] | 5709 | the module docstring for details. |
| 5710 | |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5711 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5712 | ----- |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5713 | |
Tim Peters | 5e824c3 | 2001-08-12 22:25:01 +0000 | [diff] [blame] | 5714 | - regrtest.py now knows which tests are expected to be skipped on some |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5715 | platforms, allowing to give clearer test result output. regrtest |
| 5716 | also has optional --use/-u switch to run normally disabled tests |
| 5717 | which require network access or consume significant disk resources. |
Tim Peters | 5e824c3 | 2001-08-12 22:25:01 +0000 | [diff] [blame] | 5718 | |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5719 | - Several new tests in the standard test suite, with special thanks to |
| 5720 | Nick Mathewson. |
| 5721 | |
| 5722 | Core |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5723 | ---- |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5724 | |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5725 | - The floor division operator // has been added as outlined in PEP |
| 5726 | 238. The / operator still provides classic division (and will until |
| 5727 | Python 3.0) unless "from __future__ import division" is included, in |
| 5728 | which case the / operator will provide true division. The operator |
| 5729 | module provides truediv() and floordiv() functions. Augmented |
| 5730 | assignment variants are included, as are the equivalent overloadable |
| 5731 | methods and C API methods. See the PEP for a full discussion: |
| 5732 | <http://python.sf.net/peps/pep-0238.html> |
| 5733 | |
Tim Peters | 6cd6a82 | 2001-08-17 22:11:27 +0000 | [diff] [blame] | 5734 | - Future statements are now effective in simulated interactive shells |
| 5735 | (like IDLE). This should "just work" by magic, but read Michael |
| 5736 | Hudson's "Future statements in simulated shells" PEP 264 for full |
| 5737 | details: <http://python.sf.net/peps/pep-0264.html>. |
| 5738 | |
Guido van Rossum | f86ddd2 | 2001-08-17 21:21:04 +0000 | [diff] [blame] | 5739 | - The type/class unification (PEP 252-253) was integrated into the |
| 5740 | trunk and is not so tentative any more (the exact specification of |
| 5741 | some features is still tentative). A lot of work has done on fixing |
| 5742 | bugs and adding robustness and features (performance still has to |
| 5743 | come a long way). |
| 5744 | |
Marc-André Lemburg | 888fac0 | 2001-07-31 14:24:31 +0000 | [diff] [blame] | 5745 | - Warnings about a mismatch in the Python API during extension import |
| 5746 | now use the Python warning framework (which makes it possible to |
| 5747 | write filters for these warnings). |
| 5748 | |
Barry Warsaw | 9b3be7f | 2001-08-14 18:35:02 +0000 | [diff] [blame] | 5749 | - A function's __dict__ (aka func_dict) will now always be a |
| 5750 | dictionary. It used to be possible to delete it or set it to None, |
| 5751 | but now both actions raise TypeErrors. It is still legal to set it |
| 5752 | to a dictionary object. Getting func.__dict__ before any attributes |
| 5753 | have been assigned now returns an empty dictionary instead of None. |
| 5754 | |
Guido van Rossum | 32aa5d2 | 2001-09-05 18:43:35 +0000 | [diff] [blame] | 5755 | - A new command line option, -E, was added which disables the use of |
| 5756 | all environment variables, or at least those that are specifically |
| 5757 | significant to Python. Usually those have a name starting with |
| 5758 | "PYTHON". This was used to fix a problem where the tests fail if |
| 5759 | the user happens to have PYTHONHOME or PYTHONPATH pointing to an |
| 5760 | older distribution. |
| 5761 | |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5762 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5763 | ------- |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5764 | |
Tim Peters | 5e824c3 | 2001-08-12 22:25:01 +0000 | [diff] [blame] | 5765 | - New class Differ and new functions ndiff() and restore() in difflib.py. |
| 5766 | These package the algorithms used by the popular Tools/scripts/ndiff.py, |
Tim Peters | 0afb609 | 2001-08-15 06:06:44 +0000 | [diff] [blame] | 5767 | for programmatic reuse. |
Tim Peters | 5e824c3 | 2001-08-12 22:25:01 +0000 | [diff] [blame] | 5768 | |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5769 | - New function xml.sax.saxutils.quoteattr(): Quote an XML attribute |
| 5770 | value using the minimal quoting required for the value; more |
| 5771 | reliable than using xml.sax.saxutils.escape() for attribute values. |
| 5772 | |
| 5773 | - Readline completion support for cmd.Cmd was added. |
| 5774 | |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5775 | - Calling os.tempnam() or os.tmpnam() generate RuntimeWarnings. |
| 5776 | |
| 5777 | - Added function threading.BoundedSemaphore() |
| 5778 | |
| 5779 | - Added Ka-Ping Yee's cgitb.py module. |
| 5780 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5781 | - The 'new' module now exposes the CO_xxx flags. |
Barry Warsaw | 6f3410d | 2001-08-22 04:08:41 +0000 | [diff] [blame] | 5782 | |
Martin v. Löwis | 560da62 | 2001-11-24 09:24:51 +0000 | [diff] [blame] | 5783 | - The gc module offers the get_referents function. |
| 5784 | |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5785 | New platforms |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5786 | ------------- |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5787 | |
| 5788 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5789 | ----- |
Marc-André Lemburg | d627791 | 2001-07-31 14:42:42 +0000 | [diff] [blame] | 5790 | |
Marc-André Lemburg | 888fac0 | 2001-07-31 14:24:31 +0000 | [diff] [blame] | 5791 | - Two new APIs PyOS_snprintf() and PyOS_vsnprintf() were added |
| 5792 | which provide a cross-platform implementations for the |
| 5793 | relatively new snprintf()/vsnprintf() C lib APIs. In contrast to |
| 5794 | the standard sprintf() and vsprintf() C lib APIs, these versions |
| 5795 | apply bounds checking on the used buffer which enhances protection |
| 5796 | against buffer overruns. |
| 5797 | |
Marc-André Lemburg | 48dbfe9 | 2001-07-31 14:37:40 +0000 | [diff] [blame] | 5798 | - Unicode APIs now use name mangling to assure that mixing interpreters |
Tim Peters | c173137 | 2001-08-04 08:12:36 +0000 | [diff] [blame] | 5799 | and extensions using different Unicode widths is rendered next to |
| 5800 | impossible. Trying to import an incompatible Unicode-aware extension |
Marc-André Lemburg | 48dbfe9 | 2001-07-31 14:37:40 +0000 | [diff] [blame] | 5801 | will result in an ImportError. Unicode extensions writers must make |
| 5802 | sure to check the Unicode width compatibility in their extensions by |
| 5803 | using at least one of the mangled Unicode APIs in the extension. |
| 5804 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 5805 | - Two new flags METH_NOARGS and METH_O are available in method definition |
| 5806 | tables to simplify implementation of methods with no arguments and a |
| 5807 | single untyped argument. Calling such methods is more efficient than |
| 5808 | calling corresponding METH_VARARGS methods. METH_OLDARGS is now |
| 5809 | deprecated. |
| 5810 | |
Tim Peters | c173137 | 2001-08-04 08:12:36 +0000 | [diff] [blame] | 5811 | Windows |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5812 | ------- |
Tim Peters | c173137 | 2001-08-04 08:12:36 +0000 | [diff] [blame] | 5813 | |
| 5814 | - "import module" now compiles module.pyw if it exists and nothing else |
| 5815 | relevant is found. |
| 5816 | |
Tim Peters | 20f51a7 | 2001-07-21 02:31:40 +0000 | [diff] [blame] | 5817 | |
Guido van Rossum | 55a7899 | 2001-07-17 17:22:32 +0000 | [diff] [blame] | 5818 | What's New in Python 2.2a1? |
Tim Peters | f553f89 | 2001-05-01 20:45:31 +0000 | [diff] [blame] | 5819 | =========================== |
| 5820 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5821 | *Release date: 18-Jul-2001* |
| 5822 | |
Tim Peters | f553f89 | 2001-05-01 20:45:31 +0000 | [diff] [blame] | 5823 | Core |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5824 | ---- |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 5825 | |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 5826 | - TENTATIVELY, a large amount of code implementing much of what's |
| 5827 | described in PEP 252 (Making Types Look More Like Classes) and PEP |
| 5828 | 253 (Subtyping Built-in Types) was added. This will be released |
| 5829 | with Python 2.2a1. Documentation will be provided separately |
| 5830 | through http://www.python.org/2.2/. The purpose of releasing this |
| 5831 | with Python 2.2a1 is to test backwards compatibility. It is |
| 5832 | possible, though not likely, that a decision is made not to release |
| 5833 | this code as part of 2.2 final, if any serious backwards |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 5834 | incompatibilities are found during alpha testing that cannot be |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 5835 | repaired. |
| 5836 | |
Guido van Rossum | 55a7899 | 2001-07-17 17:22:32 +0000 | [diff] [blame] | 5837 | - Generators were added; this is a new way to create an iterator (see |
Tim Peters | 11a0d10 | 2001-07-17 18:48:00 +0000 | [diff] [blame] | 5838 | below) using what looks like a simple function containing one or |
Guido van Rossum | 55a7899 | 2001-07-17 17:22:32 +0000 | [diff] [blame] | 5839 | more 'yield' statements. See PEP 255. Since this adds a new |
| 5840 | keyword to the language, this feature must be enabled by including a |
| 5841 | future statement: "from __future__ import generators" (see PEP 236). |
| 5842 | Generators will become a standard feature in a future release |
| 5843 | (probably 2.3). Without this future statement, 'yield' remains an |
| 5844 | ordinary identifier, but a warning is issued each time it is used. |
| 5845 | (These warnings currently don't conform to the warnings framework of |
| 5846 | PEP 230; we intend to fix this in 2.2a2.) |
| 5847 | |
Marc-André Lemburg | 12e74b3 | 2001-05-22 08:58:23 +0000 | [diff] [blame] | 5848 | - The UTF-16 codec was modified to be more RFC compliant. It will now |
| 5849 | only remove BOM characters at the start of the string and then |
| 5850 | only if running in native mode (UTF-16-LE and -BE won't remove a |
| 5851 | leading BMO character). |
| 5852 | |
Marc-André Lemburg | fab96cc | 2001-05-15 18:38:45 +0000 | [diff] [blame] | 5853 | - Strings now have a new method .decode() to complement the already |
| 5854 | existing .encode() method. These two methods provide direct access |
| 5855 | to the corresponding decoders and encoders of the registered codecs. |
| 5856 | |
| 5857 | To enhance the usability of the .encode() method, the special |
| 5858 | casing of Unicode object return values was dropped (Unicode objects |
| 5859 | were auto-magically converted to string using the default encoding). |
Tim Peters | eb28ef2 | 2001-06-02 05:27:19 +0000 | [diff] [blame] | 5860 | |
Marc-André Lemburg | fab96cc | 2001-05-15 18:38:45 +0000 | [diff] [blame] | 5861 | Both methods will now return whatever the codec in charge of the |
| 5862 | requested encoding returns as object, e.g. Unicode codecs will |
| 5863 | return Unicode objects when decoding is requested ("äöü".decode("latin-1") |
| 5864 | will return u"äöü"). This enables codec writer to create codecs |
| 5865 | for various simple to use conversions. |
| 5866 | |
| 5867 | New codecs were added to demonstrate these new features (the .encode() |
| 5868 | and .decode() columns indicate the type of the returned objects): |
| 5869 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5870 | +---------+-----------+-----------+-----------------------------+ |
| 5871 | |Name | .encode() | .decode() | Description | |
| 5872 | +=========+===========+===========+=============================+ |
| 5873 | |uu | string | string | UU codec (e.g. for email) | |
| 5874 | +---------+-----------+-----------+-----------------------------+ |
| 5875 | |base64 | string | string | base64 codec | |
| 5876 | +---------+-----------+-----------+-----------------------------+ |
| 5877 | |quopri | string | string | quoted-printable codec | |
| 5878 | +---------+-----------+-----------+-----------------------------+ |
| 5879 | |zlib | string | string | zlib compression | |
| 5880 | +---------+-----------+-----------+-----------------------------+ |
| 5881 | |hex | string | string | 2-byte hex codec | |
| 5882 | +---------+-----------+-----------+-----------------------------+ |
| 5883 | |rot-13 | string | Unicode | ROT-13 Unicode charmap codec| |
| 5884 | +---------+-----------+-----------+-----------------------------+ |
Marc-André Lemburg | fab96cc | 2001-05-15 18:38:45 +0000 | [diff] [blame] | 5885 | |
Mark Hammond | 2a0af79 | 2001-05-14 03:09:36 +0000 | [diff] [blame] | 5886 | - Some operating systems now support the concept of a default Unicode |
| 5887 | encoding for file system operations. Notably, Windows supports 'mbcs' |
| 5888 | as the default. The Macintosh will also adopt this concept in the medium |
Guido van Rossum | 1bd797a | 2001-05-14 13:53:38 +0000 | [diff] [blame] | 5889 | term, although the default encoding for that platform will be other than |
Mark Hammond | 2a0af79 | 2001-05-14 03:09:36 +0000 | [diff] [blame] | 5890 | 'mbcs'. |
Guido van Rossum | 1bd797a | 2001-05-14 13:53:38 +0000 | [diff] [blame] | 5891 | |
| 5892 | On operating system that support non-ASCII filenames, it is common for |
Mark Hammond | 2a0af79 | 2001-05-14 03:09:36 +0000 | [diff] [blame] | 5893 | functions that return filenames (such as os.listdir()) to return Python |
| 5894 | string objects pre-encoded using the default file system encoding for |
| 5895 | the platform. As this encoding is likely to be different from Python's |
| 5896 | default encoding, converting this name to a Unicode object before passing |
| 5897 | it back to the Operating System would result in a Unicode error, as Python |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 5898 | would attempt to use its default encoding (generally ASCII) rather than |
| 5899 | the default encoding for the file system. |
Guido van Rossum | 1bd797a | 2001-05-14 13:53:38 +0000 | [diff] [blame] | 5900 | |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 5901 | In general, this change simply removes surprises when working with |
| 5902 | Unicode and the file system, making these operations work as you expect, |
| 5903 | increasing the transparency of Unicode objects in this context. |
Mark Hammond | 2a0af79 | 2001-05-14 03:09:36 +0000 | [diff] [blame] | 5904 | See [????] for more details, including examples. |
Tim Peters | f553f89 | 2001-05-01 20:45:31 +0000 | [diff] [blame] | 5905 | |
Tim Peters | 61dff2b | 2001-05-08 15:43:37 +0000 | [diff] [blame] | 5906 | - Float (and complex) literals in source code were evaluated to full |
| 5907 | precision only when running from a .py file; the same code loaded from a |
| 5908 | .pyc (or .pyo) file could suffer numeric differences starting at about the |
| 5909 | 12th significant decimal digit. For example, on a machine with IEEE-754 |
| 5910 | floating arithmetic, |
| 5911 | |
| 5912 | x = 9007199254740992.0 |
| 5913 | print long(x) |
| 5914 | |
| 5915 | printed 9007199254740992 if run directly from .py, but 9007199254740000 |
| 5916 | if from a compiled (.pyc or .pyo) file. This was due to marshal using |
| 5917 | str(float) instead of repr(float) when building code objects. marshal |
| 5918 | now uses repr(float) instead, which should reproduce floats to full |
| 5919 | machine precision (assuming the platform C float<->string I/O conversion |
| 5920 | functions are of good quality). |
| 5921 | |
| 5922 | This may cause floating-point results to change in some cases, and |
| 5923 | usually for the better, but may also cause numerically unstable |
| 5924 | algorithms to break. |
| 5925 | |
Tim Peters | 2f228e7 | 2001-05-13 00:19:31 +0000 | [diff] [blame] | 5926 | - The implementation of dicts suffers fewer collisions, which has speed |
| 5927 | benefits. However, the order in which dict entries appear in dict.keys(), |
| 5928 | dict.values() and dict.items() may differ from previous releases for a |
| 5929 | given dict. Nothing is defined about this order, so no program should |
| 5930 | rely on it. Nevertheless, it's easy to write test cases that rely on the |
| 5931 | order by accident, typically because of printing the str() or repr() of a |
| 5932 | dict to an "expected results" file. See Lib/test/test_support.py's new |
| 5933 | sortdict(dict) function for a simple way to display a dict in sorted |
| 5934 | order. |
| 5935 | |
Tim Peters | 7a3bfc3 | 2001-06-12 01:22:22 +0000 | [diff] [blame] | 5936 | - Many other small changes to dicts were made, resulting in faster |
| 5937 | operation along the most common code paths. |
| 5938 | |
Guido van Rossum | 1031582 | 2001-05-01 20:54:30 +0000 | [diff] [blame] | 5939 | - Dictionary objects now support the "in" operator: "x in dict" means |
| 5940 | the same as dict.has_key(x). |
| 5941 | |
Barry Warsaw | 51acc8d | 2001-06-26 20:12:50 +0000 | [diff] [blame] | 5942 | - The update() method of dictionaries now accepts generic mapping |
| 5943 | objects. Specifically the argument object must support the .keys() |
| 5944 | and __getitem__() methods. This allows you to say, for example, |
| 5945 | {}.update(UserDict()) |
| 5946 | |
Guido van Rossum | 1031582 | 2001-05-01 20:54:30 +0000 | [diff] [blame] | 5947 | - Iterators were added; this is a generalized way of providing values |
| 5948 | to a for loop. See PEP 234. There's a new built-in function iter() |
| 5949 | to return an iterator. There's a new protocol to get the next value |
| 5950 | from an iterator using the next() method (in Python) or the |
| 5951 | tp_iternext slot (in C). There's a new protocol to get iterators |
| 5952 | using the __iter__() method (in Python) or the tp_iter slot (in C). |
| 5953 | Iterating (i.e. a for loop) over a dictionary generates its keys. |
| 5954 | Iterating over a file generates its lines. |
| 5955 | |
Tim Peters | f553f89 | 2001-05-01 20:45:31 +0000 | [diff] [blame] | 5956 | - The following functions were generalized to work nicely with iterator |
Skip Montanaro | a2a07bc | 2002-09-30 15:23:01 +0000 | [diff] [blame] | 5957 | arguments:: |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5958 | |
Tim Peters | e63415e | 2001-05-08 04:38:29 +0000 | [diff] [blame] | 5959 | map(), filter(), reduce(), zip() |
Tim Peters | 8572b4f | 2001-05-06 01:05:02 +0000 | [diff] [blame] | 5960 | list(), tuple() (PySequence_Tuple() and PySequence_Fast() in C API) |
| 5961 | max(), min() |
Tim Peters | 1af03e9 | 2001-05-26 19:37:54 +0000 | [diff] [blame] | 5962 | join() method of strings |
| 5963 | extend() method of lists |
Tim Peters | 75f8e35 | 2001-05-05 11:33:43 +0000 | [diff] [blame] | 5964 | 'x in y' and 'x not in y' (PySequence_Contains() in C API) |
| 5965 | operator.countOf() (PySequence_Count() in C API) |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5966 | right-hand side of assignment statements with multiple targets, such as :: |
Tim Peters | d6d010b | 2001-06-21 02:49:55 +0000 | [diff] [blame] | 5967 | x, y, z = some_iterable_object_returning_exactly_3_values |
Tim Peters | 75f8e35 | 2001-05-05 11:33:43 +0000 | [diff] [blame] | 5968 | |
Tim Peters | d85e102 | 2001-05-11 21:51:48 +0000 | [diff] [blame] | 5969 | - Accessing module attributes is significantly faster (for example, |
| 5970 | random.random or os.path or yourPythonModule.yourAttribute). |
| 5971 | |
Tim Peters | e63415e | 2001-05-08 04:38:29 +0000 | [diff] [blame] | 5972 | - Comparing dictionary objects via == and != is faster, and now works even |
| 5973 | if the keys and values don't support comparisons other than ==. |
| 5974 | |
Tim Peters | 95bf939 | 2001-05-10 08:32:44 +0000 | [diff] [blame] | 5975 | - Comparing dictionaries in ways other than == and != is slower: there were |
| 5976 | insecurities in the dict comparison implementation that could cause Python |
| 5977 | to crash if the element comparison routines for the dict keys and/or |
| 5978 | values mutated the dicts. Making the code bulletproof slowed it down. |
| 5979 | |
Tim Peters | eb28ef2 | 2001-06-02 05:27:19 +0000 | [diff] [blame] | 5980 | - Collisions in dicts are resolved via a new approach, which can help |
| 5981 | dramatically in bad cases. For example, looking up every key in a dict |
Tim Peters | 7a3bfc3 | 2001-06-12 01:22:22 +0000 | [diff] [blame] | 5982 | d with d.keys() == [i << 16 for i in range(20000)] is approximately 500x |
Tim Peters | eb28ef2 | 2001-06-02 05:27:19 +0000 | [diff] [blame] | 5983 | faster now. Thanks to Christian Tismer for pointing out the cause and |
| 5984 | the nature of an effective cure (last December! better late than never). |
Tim Peters | 15d4929 | 2001-05-27 07:39:22 +0000 | [diff] [blame] | 5985 | |
Tim Peters | 52e155e | 2001-06-16 05:42:57 +0000 | [diff] [blame] | 5986 | - repr() is much faster for large containers (dict, list, tuple). |
| 5987 | |
| 5988 | |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 5989 | Library |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 5990 | ------- |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 5991 | |
Fred Drake | 960fdf9 | 2001-07-20 18:38:26 +0000 | [diff] [blame] | 5992 | - The constants ascii_letters, ascii_lowercase. and ascii_uppercase |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 5993 | were added to the string module. These a locale-independent |
Fred Drake | 960fdf9 | 2001-07-20 18:38:26 +0000 | [diff] [blame] | 5994 | constants, unlike letters, lowercase, and uppercase. These are now |
| 5995 | use in appropriate locations in the standard library. |
| 5996 | |
Martin v. Löwis | f0473d5 | 2001-07-18 16:17:16 +0000 | [diff] [blame] | 5997 | - The flags used in dlopen calls can now be configured using |
| 5998 | sys.setdlopenflags and queried using sys.getdlopenflags. |
| 5999 | |
Guido van Rossum | c7e4aca | 2001-07-12 11:54:37 +0000 | [diff] [blame] | 6000 | - Fredrik Lundh's xmlrpclib is now a standard library module. This |
| 6001 | provides full client-side XML-RPC support. In addition, |
| 6002 | Demo/xmlrpc/ contains two server frameworks (one SocketServer-based, |
| 6003 | one asyncore-based). Thanks to Eric Raymond for the documentation. |
| 6004 | |
Guido van Rossum | 643d391 | 2001-07-05 14:46:25 +0000 | [diff] [blame] | 6005 | - The xrange() object is simplified: it no longer supports slicing, |
| 6006 | repetition, comparisons, efficient 'in' checking, the tolist() |
| 6007 | method, or the start, stop and step attributes. See PEP 260. |
| 6008 | |
Martin v. Löwis | ebf94db | 2001-06-06 06:25:40 +0000 | [diff] [blame] | 6009 | - A new function fnmatch.filter to filter lists of file names was added. |
| 6010 | |
Barry Warsaw | ffd674d | 2001-05-22 16:00:10 +0000 | [diff] [blame] | 6011 | - calendar.py uses month and day names based on the current locale. |
| 6012 | |
Guido van Rossum | 2e0a654 | 2001-05-15 02:14:44 +0000 | [diff] [blame] | 6013 | - strop is now *really* obsolete (this was announced before with 1.6), |
| 6014 | and issues DeprecationWarning when used (except for the four items |
| 6015 | that are still imported into string.py). |
| 6016 | |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 6017 | - Cookie.py now sorts key+value pairs by key in output strings. |
| 6018 | |
| 6019 | - pprint.isrecursive(object) didn't correctly identify recursive objects. |
| 6020 | Now it does. |
| 6021 | |
Tim Peters | 95b3f78 | 2001-05-14 18:39:41 +0000 | [diff] [blame] | 6022 | - pprint functions now much faster for large containers (tuple, list, dict). |
| 6023 | |
Tim Peters | 7b9542a | 2001-06-10 23:40:19 +0000 | [diff] [blame] | 6024 | - New 'q' and 'Q' format codes in the struct module, corresponding to C |
| 6025 | types "long long" and "unsigned long long" (on Windows, __int64). In |
| 6026 | native mode, these can be used only when the platform C compiler supports |
| 6027 | these types (when HAVE_LONG_LONG is #define'd by the Python config |
| 6028 | process), and then they inherit the sizes and alignments of the C types. |
Tim Peters | 7a3bfc3 | 2001-06-12 01:22:22 +0000 | [diff] [blame] | 6029 | In standard mode, 'q' and 'Q' are supported on all platforms, and are |
| 6030 | 8-byte integral types. |
Tim Peters | 7b9542a | 2001-06-10 23:40:19 +0000 | [diff] [blame] | 6031 | |
Guido van Rossum | 83213cc | 2001-06-12 16:48:52 +0000 | [diff] [blame] | 6032 | - The site module installs a new built-in function 'help' that invokes |
| 6033 | pydoc.help. It must be invoked as 'help()'; when invoked as 'help', |
| 6034 | it displays a message reminding the user to use 'help()' or |
| 6035 | 'help(object)'. |
| 6036 | |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 6037 | Tests |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 6038 | ----- |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 6039 | |
| 6040 | - New test_mutants.py runs dict comparisons where the key and value |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 6041 | comparison operators mutate the dicts randomly during comparison. This |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 6042 | rapidly causes Python to crash under earlier releases (not for the faint |
| 6043 | of heart: it can also cause Win9x to freeze or reboot!). |
| 6044 | |
Raymond Hettinger | f2f2a2c | 2002-08-19 14:25:03 +0000 | [diff] [blame] | 6045 | - New test_pprint.py verifies that pprint.isrecursive() and |
Tim Peters | 95b3f78 | 2001-05-14 18:39:41 +0000 | [diff] [blame] | 6046 | pprint.isreadable() return sensible results. Also verifies that simple |
| 6047 | cases produce correct output. |
Tim Peters | a814db5 | 2001-05-14 07:05:58 +0000 | [diff] [blame] | 6048 | |
Tim Peters | 4324aa3 | 2001-05-28 22:30:08 +0000 | [diff] [blame] | 6049 | C API |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 6050 | ----- |
Tim Peters | 4324aa3 | 2001-05-28 22:30:08 +0000 | [diff] [blame] | 6051 | |
| 6052 | - Removed the unused last_is_sticky argument from the internal |
| 6053 | _PyTuple_Resize(). If this affects you, you were cheating. |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 6054 | |
| 6055 | ---- |
| 6056 | |
| 6057 | **(For information about older versions, consult the HISTORY file.)** |