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 | |
Barry Warsaw | 8509df7 | 2008-08-21 03:02:47 +0000 | [diff] [blame] | 7 | What's New in Python 3.0 release candidate 1 |
| 8 | ============================================ |
| 9 | |
| 10 | *Release date: XX-XXXX-2008* |
| 11 | |
| 12 | Core and Builtins |
| 13 | ----------------- |
| 14 | |
Amaury Forgeot d'Arc | 20443f3 | 2008-08-22 22:05:20 +0000 | [diff] [blame^] | 15 | - Issue #3650: Fixed a reference leak in bytes.split('x'). |
| 16 | |
Barry Warsaw | 8509df7 | 2008-08-21 03:02:47 +0000 | [diff] [blame] | 17 | Library |
| 18 | ------- |
| 19 | |
| 20 | |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 21 | What's new in Python 3.0b3? |
| 22 | =========================== |
| 23 | |
Barry Warsaw | 57c1058 | 2008-08-21 02:39:51 +0000 | [diff] [blame] | 24 | *Release date: 20-Aug-2008* |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 25 | |
Antoine Pitrou | 9a2310d | 2008-07-25 22:39:39 +0000 | [diff] [blame] | 26 | Core and Builtins |
| 27 | ----------------- |
| 28 | |
Antoine Pitrou | 616d285 | 2008-08-19 22:09:34 +0000 | [diff] [blame] | 29 | - Issue #2394: implement more of the memoryview API, with the caveat that |
| 30 | only one-dimensional contiguous buffers are supported and exercised right |
| 31 | now. Slicing, slice assignment and comparison (equality and inequality) |
| 32 | have been added. Also, the tolist() method has been implemented, but only |
| 33 | for byte buffers. Endly, the API has been updated to return bytes objects |
| 34 | wherever it used to return bytearrays. |
| 35 | |
Antoine Pitrou | ee58fa4 | 2008-08-19 18:22:14 +0000 | [diff] [blame] | 36 | - Issue #3560: clean up the new C PyMemoryView API so that naming is |
| 37 | internally consistent; add macros PyMemoryView_GET_BASE() and |
| 38 | PyMemoryView_GET_BUFFER() to access useful properties of a memory views |
| 39 | without relying on a particular implementation; remove the ill-named |
| 40 | PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead). |
| 41 | |
Thomas Heller | f5049fc | 2008-08-19 19:49:49 +0000 | [diff] [blame] | 42 | - ctypes function pointers that are COM methods have a boolean True |
| 43 | value again. |
| 44 | |
Antoine Pitrou | 9a2310d | 2008-07-25 22:39:39 +0000 | [diff] [blame] | 45 | - Issue #1819: function calls with several named parameters are now on |
| 46 | average 35% faster (as measured by pybench). |
| 47 | |
Marc-André Lemburg | 4cc0f24 | 2008-08-07 18:54:33 +0000 | [diff] [blame] | 48 | - The undocumented C APIs PyUnicode_AsString() and |
| 49 | PyUnicode_AsStringAndSize() were made private to the interpreter, in |
| 50 | order to be able to refine their interfaces for Python 3.1. |
| 51 | |
| 52 | If you need to access the UTF-8 representation of a Unicode object |
| 53 | as bytes string, please use PyUnicode_AsUTF8String() instead. |
| 54 | |
Antoine Pitrou | af14b79 | 2008-08-07 21:50:41 +0000 | [diff] [blame] | 55 | - Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks |
| 56 | to Python 3.0's stricter semantics which allow to avoid successive |
| 57 | reallocations of the result string (this also affects str.join()). |
| 58 | |
Marc-André Lemburg | 4cc0f24 | 2008-08-07 18:54:33 +0000 | [diff] [blame] | 59 | |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 60 | Library |
| 61 | ------- |
| 62 | |
Amaury Forgeot d'Arc | 41e3667 | 2008-08-20 21:35:50 +0000 | [diff] [blame] | 63 | - Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError |
| 64 | "global name 'header' is not defined". |
| 65 | |
Antoine Pitrou | fd03645 | 2008-08-19 17:56:33 +0000 | [diff] [blame] | 66 | - Issue #2834: update the regular expression library to match the unicode |
| 67 | standards of py3k. In other words, mixing bytes and unicode strings |
| 68 | (be it as pattern, search string or replacement string) raises a TypeError. |
| 69 | Moreover, the re.UNICODE flag is enabled automatically for unicode patterns, |
| 70 | and can be disabled by specifying a new re.ASCII flag; as for bytes |
| 71 | patterns, ASCII matching is the only option and trying to specify re.UNICODE |
| 72 | for such patterns raises a ValueError. |
| 73 | |
Guido van Rossum | 52dbbb9 | 2008-08-18 21:44:30 +0000 | [diff] [blame] | 74 | - Issue #3300: make urllib.parse.[un]quote() default to UTF-8. |
| 75 | Code contributed by Matt Giuca. quote() now encodes the input |
| 76 | before quoting, unquote() decodes after unquoting. There are |
| 77 | new arguments to change the encoding and errors settings. |
| 78 | There are also new APIs to skip the encode/decode steps. |
| 79 | [un]quote_plus() are also affected. |
| 80 | |
Nick Coghlan | 36f4952 | 2008-08-18 12:31:52 +0000 | [diff] [blame] | 81 | - Issue #2235: numbers.Number now blocks inheritance of the default id() |
| 82 | based hash because that hash mechanism is not correct for numeric types. |
| 83 | All concrete numeric types that inherit from Number (rather than just |
| 84 | registering with it) must explicitly provide a hash implementation in |
| 85 | order for their instances to be hashable. |
| 86 | |
Benjamin Peterson | 4cd6a95 | 2008-08-17 20:23:46 +0000 | [diff] [blame] | 87 | - Issue #2676: in the email package, content-type parsing was hanging on |
| 88 | pathological input because of quadratic or exponential behaviour of a |
| 89 | regular expression. |
| 90 | |
Antoine Pitrou | 8769576 | 2008-08-14 22:44:29 +0000 | [diff] [blame] | 91 | - Issue #3476: binary buffered reading through the new "io" library is now |
| 92 | thread-safe. |
| 93 | |
Robert Schuppenies | 3d1c7de | 2008-08-10 11:28:17 +0000 | [diff] [blame] | 94 | - Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to |
| 95 | menu entries were not deleted. |
| 96 | |
Lars Gustäbel | 0c24e8b | 2008-08-02 11:43:24 +0000 | [diff] [blame] | 97 | - Remove the TarFileCompat class from tarfile.py. |
| 98 | |
Amaury Forgeot d'Arc | bdbddf8 | 2008-08-01 00:06:49 +0000 | [diff] [blame] | 99 | - Issue #2491: os.fdopen is now almost an alias for the built-in open(), and |
| 100 | accepts the same parameters. It just checks that its first argument is an |
| 101 | integer. |
| 102 | |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 103 | - Issue #3394: zipfile.writestr sets external attributes when passed a |
| 104 | file name rather than a ZipInfo instance, so files are extracted with |
| 105 | mode 0600 rather than 000 under Unix. |
| 106 | |
Antoine Pitrou | c66f909 | 2008-07-28 19:46:11 +0000 | [diff] [blame] | 107 | - Issue #2523: Fix quadratic behaviour when read()ing a binary file without |
| 108 | asking for a specific length. |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 109 | |
Martin v. Löwis | 371bb50 | 2008-08-16 13:02:57 +0000 | [diff] [blame] | 110 | Extension Modules |
| 111 | ----------------- |
| 112 | |
| 113 | - Bug #3542: Support Unicode strings in _msi module. |
| 114 | |
Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 115 | What's new in Python 3.0b2? |
| 116 | =========================== |
| 117 | |
Barry Warsaw | 4bd1cef | 2008-07-18 02:28:44 +0000 | [diff] [blame] | 118 | *Release date: 17-Jul-2008* |
Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 119 | |
| 120 | Core and Builtins |
| 121 | ----------------- |
| 122 | |
Mark Dickinson | 65fe25e | 2008-07-16 11:30:51 +0000 | [diff] [blame] | 123 | - Issue #3008: the float type has a new instance method 'float.hex' |
| 124 | and a new class method 'float.fromhex' to convert floating-point |
| 125 | numbers to and from hexadecimal strings, respectively. |
| 126 | |
Eric Smith | d68af8f | 2008-07-16 00:15:35 +0000 | [diff] [blame] | 127 | - Issue #3083: Add alternate (#) formatting for bin, oct, hex output |
| 128 | for str.format(). This adds the prefix 0b, 0o, or 0x, respectively. |
| 129 | |
Amaury Forgeot d'Arc | a4db686 | 2008-07-04 21:26:43 +0000 | [diff] [blame] | 130 | - Issue #3280: like chr(), the "%c" format now accepts unicode code points |
| 131 | beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On |
| 132 | "narrow Unicode" builds, the result is a string of 2 code units, forming a |
| 133 | UTF-16 surrogate pair. |
| 134 | |
Georg Brandl | d52429f | 2008-07-04 15:55:02 +0000 | [diff] [blame] | 135 | - Issue #3282: str.isprintable() should return False for undefined |
| 136 | Unicode characters. |
| 137 | |
Martin v. Löwis | 029656f | 2008-06-30 04:06:08 +0000 | [diff] [blame] | 138 | - Issue #3236: Return small longs from PyLong_FromString. |
| 139 | |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 140 | - Exception tracebacks now support exception chaining. |
| 141 | |
Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 142 | Library |
| 143 | ------- |
| 144 | |
Brett Cannon | c2542e9 | 2008-07-25 18:19:20 +0000 | [diff] [blame] | 145 | - Removed the sunaudio module. Use sunau instead. |
| 146 | |
Thomas Heller | 47bc809 | 2008-08-19 06:38:12 +0000 | [diff] [blame] | 147 | - Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python |
| 148 | api functions without holding the GIL, which could lead to a fatal |
| 149 | error when they failed. |
| 150 | |
| 151 | - Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects. |
| 152 | |
Georg Brandl | 30704ea0 | 2008-07-23 15:07:12 +0000 | [diff] [blame] | 153 | - Removed "ast" function aliases from the parser module. |
| 154 | |
Thomas Heller | 15383a0 | 2008-07-15 19:46:52 +0000 | [diff] [blame] | 155 | - Issue #3313: Fixed a crash when a failed dlopen() call does not set |
| 156 | a valid dlerror() message. |
| 157 | |
Thomas Heller | 0261e1e | 2008-07-15 17:25:07 +0000 | [diff] [blame] | 158 | - Issue #3258: Fixed a crash when a ctypes POINTER type to an |
| 159 | incomplete structure was created. |
| 160 | |
Georg Brandl | 1abcbf8 | 2008-07-01 19:28:43 +0000 | [diff] [blame] | 161 | - Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the |
| 162 | argument now must be a bytes object in any case. |
| 163 | |
Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 164 | - Issue #3145: help("modules whatever") failed when trying to load the source |
| 165 | code of every single module of the standard library, including invalid files |
| 166 | used in the test suite. |
| 167 | |
Georg Brandl | bded4d3 | 2008-07-17 18:15:35 +0000 | [diff] [blame] | 168 | - The gettext library now consistently uses Unicode strings for message ids |
| 169 | and message strings, and ``ugettext()`` and the like don't exist anymore. |
Benjamin Peterson | 801844d | 2008-07-14 14:32:15 +0000 | [diff] [blame] | 170 | |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 171 | - The traceback module has been expanded to handle chained exceptions. |
| 172 | |
Amaury Forgeot d'Arc | 612f61f | 2008-07-02 23:02:21 +0000 | [diff] [blame] | 173 | C API |
| 174 | ----- |
| 175 | |
| 176 | - Issue #3247: the function Py_FindMethod was removed. Modern types should |
| 177 | use the tp_methods slot instead. |
| 178 | |
Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 179 | Tools/Demos |
| 180 | ----------- |
| 181 | |
Georg Brandl | 336341f | 2008-07-01 20:21:28 +0000 | [diff] [blame] | 182 | - The Mac/Demos directory has been removed. |
Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 183 | |
Georg Brandl | 336341f | 2008-07-01 20:21:28 +0000 | [diff] [blame] | 184 | - All of the Mac scripts have been removed (including BuildApplet.py). |
Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 185 | |
| 186 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 187 | What's new in Python 3.0b1? |
| 188 | =========================== |
| 189 | |
Barry Warsaw | c1e689e | 2008-06-19 00:35:43 +0000 | [diff] [blame] | 190 | *Release date: 18-Jun-2008* |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 191 | |
| 192 | Core and Builtins |
| 193 | ----------------- |
| 194 | |
Brett Cannon | db73491 | 2008-06-27 00:52:15 +0000 | [diff] [blame] | 195 | - Issue #3211: warnings.warn_explicit() did not guard against its 'registry' |
| 196 | argument being anything other than a dict or None. Also fixed a bug in error |
| 197 | handling when 'message' and 'category' were both set to None, triggering a |
| 198 | bus error. |
| 199 | |
Amaury Forgeot d'Arc | c856c7a | 2008-06-16 19:50:09 +0000 | [diff] [blame] | 200 | - Issue #3100: Corrected a crash on deallocation of a subclassed weakref which |
| 201 | holds the last (strong) reference to its referent. |
| 202 | |
Georg Brandl | 559e5d7 | 2008-06-11 18:37:52 +0000 | [diff] [blame] | 203 | - Issue #2630: implement PEP 3138. repr() now returns printable |
| 204 | Unicode characters unescaped, to get an ASCII-only representation |
| 205 | of an object use ascii(). |
| 206 | |
Amaury Forgeot d'Arc | f1ca0b1 | 2008-06-11 17:40:47 +0000 | [diff] [blame] | 207 | - Issue #1342: On windows, Python could not start when installed in a |
| 208 | directory with non-ascii characters. |
| 209 | |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 210 | - Implement PEP 3121: new module initialization and finalization API. |
| 211 | |
Georg Brandl | e1b5ac6 | 2008-06-04 13:06:58 +0000 | [diff] [blame] | 212 | - Removed the already-defunct ``-t`` option. |
| 213 | |
Amaury Forgeot d'Arc | 74c71f5 | 2008-05-26 21:41:42 +0000 | [diff] [blame] | 214 | - Issue #2957: Corrected a ValueError "recursion limit exceeded", when |
| 215 | unmarshalling many code objects, which happens when importing a |
| 216 | large .pyc file (~1000 functions). |
| 217 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 218 | - Issue #2963: fix merging oversight that disabled method cache for |
| 219 | all types. |
Georg Brandl | 1bcf35a | 2008-05-25 09:32:09 +0000 | [diff] [blame] | 220 | |
Georg Brandl | c9b0953 | 2008-05-25 09:24:38 +0000 | [diff] [blame] | 221 | - Issue #2964: fix a missing INCREF in instancemethod_descr_get. |
| 222 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 223 | - Issue #2895: Don't crash when given bytes objects as keyword names. |
Georg Brandl | d8b690f | 2008-05-16 17:28:50 +0000 | [diff] [blame] | 224 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 225 | - Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" |
| 226 | code now allows any unicode string and returns a utf-8 encoded |
| 227 | buffer, just like the "s#" code already does. The "z" code was |
| 228 | corrected as well. |
Amaury Forgeot d'Arc | 0740459 | 2008-05-12 13:19:07 +0000 | [diff] [blame] | 229 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 230 | - Issue #2863: generators now have a ``gen.__name__`` attribute that |
| 231 | equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals |
| 232 | ``func.func_code.co_name``. The repr() of a generator now also |
| 233 | contains this name. |
Alexandre Vassalotti | e9f305f | 2008-05-16 04:39:54 +0000 | [diff] [blame] | 234 | |
| 235 | - Issue #2831: enumerate() now has a ``start`` argument. |
| 236 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 237 | - Issue #2801: fix bug in the float.is_integer method where a |
| 238 | ValueError was sometimes incorrectly raised. |
Mark Dickinson | c4352b0 | 2008-05-09 13:55:01 +0000 | [diff] [blame] | 239 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 240 | - The ``--with-toolbox-glue`` option (and the associated |
| 241 | pymactoolbox.h) have been removed. |
Benjamin Peterson | 79629ab | 2008-05-14 21:07:12 +0000 | [diff] [blame] | 242 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 243 | - Issue #2196: hasattr() now lets exceptions which do not inherit |
| 244 | Exception (KeyboardInterrupt, and SystemExit) propagate instead of |
| 245 | ignoring them. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 246 | |
Benjamin Peterson | eec3d71 | 2008-06-11 15:59:43 +0000 | [diff] [blame] | 247 | - #3021 Exception reraising sematics have been significantly improved. However, |
| 248 | f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python |
| 249 | code anymore. |
| 250 | |
Benjamin Peterson | 4f92ca4 | 2008-06-11 20:21:57 +0000 | [diff] [blame] | 251 | - Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been |
| 252 | removed. |
| 253 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 254 | Extension Modules |
| 255 | ----------------- |
| 256 | |
Georg Brandl | 38feaf0 | 2008-05-25 07:45:51 +0000 | [diff] [blame] | 257 | - Renamed ``_winreg`` module to ``winreg``. |
| 258 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 259 | - Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the |
| 260 | platform. |
Alexandre Vassalotti | bee3253 | 2008-05-16 18:15:12 +0000 | [diff] [blame] | 261 | |
| 262 | - Support for Windows 9x has been removed from the winsound module. |
| 263 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 264 | - Issue #2870: cmathmodule.c compile error. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 265 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 266 | Library |
| 267 | ------- |
| 268 | |
Benjamin Peterson | 87069fd | 2008-08-20 02:00:14 +0000 | [diff] [blame] | 269 | - The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of |
| 270 | symtable.Symbol have been removed. |
| 271 | |
Amaury Forgeot d'Arc | cb0d2d7 | 2008-06-18 22:19:22 +0000 | [diff] [blame] | 272 | - Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows. |
| 273 | |
Jeremy Hylton | 1afc169 | 2008-06-18 20:49:58 +0000 | [diff] [blame] | 274 | - a new ``urllib`` package was created. It consists of code from |
| 275 | ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old |
| 276 | modules have all been removed. The new package has five submodules: |
| 277 | ``urllib.parse``, ``urllib.request``, ``urllib.response``, |
| 278 | ``urllib.error``, and ``urllib.robotparser``. The |
| 279 | ``urllib.request.urlopen()`` function uses the url opener from |
| 280 | ``urllib2``. (Note that the unittests have not been renamed for the |
| 281 | beta, but they will be renamed in the future.) |
| 282 | |
Benjamin Peterson | a0c0a4a | 2008-06-12 22:15:50 +0000 | [diff] [blame] | 283 | - rfc822 has been removed in favor of the email package. |
| 284 | |
Benjamin Peterson | 425ea7f | 2008-06-12 14:11:35 +0000 | [diff] [blame] | 285 | - mimetools has been removed in favor of the email package. |
Benjamin Peterson | 23c51a2 | 2008-06-12 14:06:57 +0000 | [diff] [blame] | 286 | |
Barry Warsaw | f501942 | 2008-06-12 02:42:00 +0000 | [diff] [blame] | 287 | - Patch #2849: Remove use of rfc822 module from standard library. |
| 288 | |
Alexandre Vassalotti | 794652d | 2008-06-11 22:58:36 +0000 | [diff] [blame] | 289 | - Added C optimized implementation of io.StringIO. |
| 290 | |
Alexandre Vassalotti | ca2d610 | 2008-06-12 18:26:05 +0000 | [diff] [blame] | 291 | - The ``pickle`` module is now automatically use an optimized C |
| 292 | implementation of Pickler and Unpickler when available. The |
| 293 | ``cPickle`` module is no longer needed. |
| 294 | |
Georg Brandl | 877b10a | 2008-06-01 21:25:55 +0000 | [diff] [blame] | 295 | - Removed the ``htmllib`` and ``sgmllib`` modules. |
| 296 | |
Georg Brandl | 6101395 | 2008-05-28 15:56:30 +0000 | [diff] [blame] | 297 | - The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have |
| 298 | been removed from ``http.cookies``. |
| 299 | |
Brett Cannon | a23810f | 2008-05-26 19:04:21 +0000 | [diff] [blame] | 300 | - The ``commands`` module has been removed. Its getoutput() and |
| 301 | getstatusoutput() functions have been moved to the ``subprocess`` module. |
| 302 | |
Georg Brandl | 3d5c425 | 2008-05-26 18:03:26 +0000 | [diff] [blame] | 303 | - The ``http`` package was created; it contains the old ``httplib`` |
| 304 | as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib`` |
| 305 | as ``http.cookiejar``, and the content of the three ``HTTPServer`` |
| 306 | modules as ``http.server``. |
| 307 | |
Georg Brandl | 38eceaa | 2008-05-26 11:14:17 +0000 | [diff] [blame] | 308 | - The ``xmlrpc`` package was created; it contains the old |
| 309 | ``xmlrpclib`` module as ``xmlrpc.client`` and the content of |
| 310 | the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 311 | as ``xmlrpc.server``. |
Georg Brandl | 38eceaa | 2008-05-26 11:14:17 +0000 | [diff] [blame] | 312 | |
| 313 | - The ``dbm`` package was created, containing the old modules |
| 314 | ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having |
| 315 | ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``), |
| 316 | ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``) |
| 317 | as submodules. |
| 318 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 319 | - The ``repr`` module has been renamed to ``reprlib``. |
Alexandre Vassalotti | 1f2ba4b | 2008-05-16 07:12:44 +0000 | [diff] [blame] | 320 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 321 | - The ``statvfs`` module has been removed. |
Brett Cannon | acbb786 | 2008-05-16 00:42:57 +0000 | [diff] [blame] | 322 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 323 | - Issue #1713041: fix pprint's handling of maximum depth. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 324 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 325 | - Issue #2250: Exceptions raised during evaluation of names in |
| 326 | rlcompleter's ``Completer.complete()`` method are now caught and |
| 327 | ignored. |
Alexandre Vassalotti | 8ae3e05 | 2008-05-16 00:41:41 +0000 | [diff] [blame] | 328 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 329 | - Patch #2659: Added ``break_on_hyphens`` option to textwrap's |
| 330 | ``TextWrapper`` class. |
Alexandre Vassalotti | 1d1eaa4 | 2008-05-14 22:59:42 +0000 | [diff] [blame] | 331 | |
Alexandre Vassalotti | 6461e10 | 2008-05-15 22:09:29 +0000 | [diff] [blame] | 332 | - Issue #2487: change the semantics of math.ldexp(x, n) when n is too |
| 333 | large to fit in a C long. ldexp(x, n) now returns a zero (with |
| 334 | suitable sign) if n is large and negative; previously, it raised |
| 335 | OverflowError. |
| 336 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 337 | - The ``ConfigParser`` module has been renamed to ``configparser``. |
Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 338 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 339 | - Issue #2865: webbrowser.open() works again in a KDE environment. |
Amaury Forgeot d'Arc | 2b2b44d | 2008-05-12 14:41:00 +0000 | [diff] [blame] | 340 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 341 | - The ``multifile`` module has been removed. |
Brett Cannon | d3343cb | 2008-05-12 03:18:21 +0000 | [diff] [blame] | 342 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 343 | - The ``SocketServer`` module has been renamed to ``socketserver``. |
Alexandre Vassalotti | ce26195 | 2008-05-12 02:31:37 +0000 | [diff] [blame] | 344 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 345 | - Fixed the ``__all__`` setting on ``collections`` to include |
| 346 | ``UserList`` and ``UserString``. |
Brett Cannon | 23a4a7b | 2008-05-12 00:56:28 +0000 | [diff] [blame] | 347 | |
Brett Cannon | cf3520c | 2008-05-11 22:47:58 +0000 | [diff] [blame] | 348 | - The sre module has been removed. |
| 349 | |
Alexandre Vassalotti | f260e44 | 2008-05-11 19:59:59 +0000 | [diff] [blame] | 350 | - The Queue module has been renamed to queue. |
| 351 | |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 352 | - The copy_reg module has been renamed to copyreg. |
| 353 | |
Brett Cannon | d8b61ee | 2008-05-11 03:00:26 +0000 | [diff] [blame] | 354 | - The mhlib module has been removed. |
| 355 | |
Brett Cannon | bd47442 | 2008-05-10 22:42:14 +0000 | [diff] [blame] | 356 | - The ihooks module has been removed. |
| 357 | |
Brett Cannon | b59a2bd | 2008-05-10 22:03:16 +0000 | [diff] [blame] | 358 | - The fpformat module has been removed. |
| 359 | |
Brett Cannon | f4fd993 | 2008-05-10 21:11:46 +0000 | [diff] [blame] | 360 | - The dircache module has been removed. |
| 361 | |
Brett Cannon | d175b4c | 2008-05-10 03:19:54 +0000 | [diff] [blame] | 362 | - The Canvas module has been removed. |
| 363 | |
Mark Dickinson | b27406c | 2008-05-09 13:42:33 +0000 | [diff] [blame] | 364 | - The Decimal module gained the magic methods __round__, __ceil__, |
| 365 | __floor__ and __trunc__, to give support for round, math.ceil, |
| 366 | math.floor and math.trunc. |
| 367 | |
Brett Cannon | 900ee3a | 2008-05-08 20:31:11 +0000 | [diff] [blame] | 368 | - The user module has been removed. |
| 369 | |
Brett Cannon | 34afe87 | 2008-05-08 20:31:44 +0000 | [diff] [blame] | 370 | - The mutex module has been removed. |
| 371 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 372 | - The imputil module has been removed. |
| 373 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 374 | - os.path.walk has been removed in favor of os.walk. |
Benjamin Peterson | d71ca41 | 2008-05-08 23:44:58 +0000 | [diff] [blame] | 375 | |
Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 376 | - pdb gained the "until" command. |
| 377 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 378 | - The test.test_support module has been renamed to test.support. |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 379 | |
Georg Brandl | 32de7af | 2008-08-18 23:07:41 +0000 | [diff] [blame] | 380 | - The threading module API was renamed to be PEP 8 compliant. The |
| 381 | old names are still present, but will be removed in the near future. |
Benjamin Peterson | 672b803 | 2008-06-11 19:14:14 +0000 | [diff] [blame] | 382 | |
Georg Brandl | 294d5a9 | 2008-06-01 19:25:32 +0000 | [diff] [blame] | 383 | Tools/Demos |
| 384 | ----------- |
| 385 | |
| 386 | - The bgen tool has been removed. |
Benjamin Peterson | 630c829 | 2008-06-01 18:50:38 +0000 | [diff] [blame] | 387 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 388 | Build |
| 389 | ----- |
| 390 | |
| 391 | |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 392 | What's New in Python 3.0a5? |
| 393 | =========================== |
| 394 | |
Barry Warsaw | 9eab8b0 | 2008-05-08 13:05:38 +0000 | [diff] [blame] | 395 | *Release date: 08-May-2008* |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 396 | |
| 397 | Core and Builtins |
| 398 | ----------------- |
| 399 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 400 | - Fixed misbehaviour of PyLong_FromSsize_t on systems where |
| 401 | sizeof(size_t) > sizeof(long). |
Mark Dickinson | 7ab6be2 | 2008-04-15 21:42:42 +0000 | [diff] [blame] | 402 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 403 | - Issue #2221: Corrected a SystemError "error return without exception |
| 404 | set", when the code executed by exec() raises an exception, and |
| 405 | sys.stdout.flush() also raises an error. |
Amaury Forgeot d'Arc | 7fedbe5 | 2008-04-10 21:03:09 +0000 | [diff] [blame] | 406 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 407 | - Bug #2565: The repr() of type objects now calls them 'class', not |
| 408 | 'type' - whether they are builtin types or not. |
Martin v. Löwis | 250ad61 | 2008-04-07 05:43:42 +0000 | [diff] [blame] | 409 | |
Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 410 | - The command line processing was converted to pass Unicode strings |
| 411 | through as unmodified as possible; as a consequence, the C API |
| 412 | related to command line arguments was changed to use wchar_t. |
| 413 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 414 | - All backslashes in raw strings are interpreted literally. This |
| 415 | means that '\u' and '\U' escapes are not treated specially. |
Benjamin Peterson | a2f837f | 2008-04-28 21:05:10 +0000 | [diff] [blame] | 416 | |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 417 | Extension Modules |
| 418 | ----------------- |
| 419 | |
| 420 | Library |
| 421 | ------- |
| 422 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 423 | - ctypes objects now support the PEP3118 buffer interface. |
Thomas Heller | b041fda | 2008-04-30 17:11:46 +0000 | [diff] [blame] | 424 | |
Thomas Heller | e106dc3 | 2008-04-24 18:39:36 +0000 | [diff] [blame] | 425 | - Issue #2682: ctypes callback functions now longer contain a cyclic |
| 426 | reference to themselves. |
| 427 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 428 | - Issue #2058: Remove the buf attribute and add __slots__ to the |
| 429 | TarInfo class in order to reduce tarfile's memory usage. |
Lars Gustäbel | c2ea8c6 | 2008-04-14 10:05:48 +0000 | [diff] [blame] | 430 | |
Martin v. Löwis | 8efc62c | 2008-04-10 19:02:25 +0000 | [diff] [blame] | 431 | - Bug #2606: Avoid calling .sort() on a dict_keys object. |
| 432 | |
Thomas Heller | bff533b | 2008-04-04 19:53:14 +0000 | [diff] [blame] | 433 | - The bundled libffi copy is now in sync with the recently released |
| 434 | libffi3.0.5 version, apart from some small changes to |
| 435 | Modules/_ctypes/libffi/configure.ac. |
| 436 | |
Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 437 | Build |
| 438 | ----- |
| 439 | |
Mark Dickinson | b0e2b4c | 2008-04-26 20:48:56 +0000 | [diff] [blame] | 440 | - Issue #1496032: On alpha, use -mieee when gcc is the compiler. |
| 441 | |
Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 442 | - "make install" is now an alias for "make altinstall", to prevent |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 443 | accidentally overwriting a Python 2.x installation. Use "make |
| 444 | fullinstall" to force Python 3.0 to be installed as "python". |
Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 445 | |
Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 446 | - Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when |
| 447 | gcc is used as compiler. |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 448 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 449 | |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 450 | What's New in Python 3.0a4? |
| 451 | =========================== |
| 452 | |
Barry Warsaw | bb5cd08 | 2008-04-02 23:33:27 +0000 | [diff] [blame] | 453 | *Release date: 02-Apr-2008* |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 454 | |
Martin v. Löwis | 2593146 | 2008-03-17 20:43:42 +0000 | [diff] [blame] | 455 | Core and Builtins |
| 456 | ----------------- |
| 457 | |
| 458 | - Bug #2301: Don't try decoding the source code into the original |
| 459 | encoding for syntax errors. |
| 460 | |
Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 461 | Extension Modules |
| 462 | ----------------- |
| 463 | |
Neal Norwitz | 6cf49cf | 2008-03-24 06:22:57 +0000 | [diff] [blame] | 464 | - The dl module was removed, use the ctypes module instead. |
| 465 | |
Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 466 | - Use wchar_t functions in _locale module. |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 467 | |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 468 | Library |
| 469 | ------- |
| 470 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 471 | - The class distutils.commands.build_py.build_py_2to3 can be used as a |
| 472 | build_py replacement to automatically run 2to3 on modules that are |
| 473 | going to be installed. |
Martin v. Löwis | 73a22f0 | 2008-03-22 00:35:10 +0000 | [diff] [blame] | 474 | |
Guido van Rossum | f416981 | 2008-03-17 22:56:06 +0000 | [diff] [blame] | 475 | - A new pickle protocol (protocol 3) is added with explicit support |
| 476 | for bytes. This is the default protocol. It intentionally cannot |
| 477 | be unpickled by Python 2.x. |
| 478 | |
| 479 | - When a pickle written by Python 2.x contains an (8-bit) str |
| 480 | instance, this is now decoded to a (Unicode) str instance. The |
| 481 | encoding used to do this defaults to ASCII, but can be overridden |
| 482 | via two new keyword arguments to the Unpickler class. Previously |
| 483 | this would create bytes instances, which is usually wrong: str |
| 484 | instances are often used to pickle attribute names etc., and text is |
| 485 | more common than binary data anyway. |
| 486 | |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 487 | - Default to ASCII as the locale.getpreferredencoding, if the POSIX |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 488 | system doesn't support CODESET and LANG isn't set or doesn't allow |
| 489 | deduction of an encoding. |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 490 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 491 | - Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned |
| 492 | value. |
Gregory P. Smith | 425136b | 2008-03-17 20:45:21 +0000 | [diff] [blame] | 493 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 494 | - Issue #719888: Updated tokenize to use a bytes API. generate_tokens |
| 495 | has been renamed tokenize and now works with bytes rather than |
| 496 | strings. A new detect_encoding function has been added for |
| 497 | determining source file encoding according to PEP-0263. Token |
| 498 | sequences returned by tokenize always start with an ENCODING token |
| 499 | which specifies the encoding used to decode the file. This token is |
| 500 | used to encode the output of untokenize back to bytes. |
| 501 | |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 502 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 503 | What's New in Python 3.0a3? |
| 504 | =========================== |
| 505 | |
Barry Warsaw | 659fc42 | 2008-03-01 17:45:23 +0000 | [diff] [blame] | 506 | *Release date: 29-Feb-2008* |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 507 | |
| 508 | Core and Builtins |
| 509 | ----------------- |
| 510 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 511 | - Issue #2282: io.TextIOWrapper was not overriding seekable() from |
| 512 | io.IOBase. |
Ka-Ping Yee | ddaa706 | 2008-03-17 20:35:15 +0000 | [diff] [blame] | 513 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 514 | - Issue #2115: Important speedup in setting __slot__ attributes. Also |
| 515 | prevent a possible crash: an Abstract Base Class would try to access |
| 516 | a slot on a registered virtual subclass. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 517 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 518 | - Fixed repr() and str() of complex numbers with infinity or nan as |
| 519 | real or imaginary part. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 520 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 521 | - Clear all free list during a gc.collect() of the highest generation |
| 522 | in order to allow pymalloc to free more arenas. Python may give back |
| 523 | memory to the OS earlier. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 524 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 525 | - Issue #2045: Fix an infinite recursion triggered when printing a |
| 526 | subclass of collections.defaultdict, if its default_factory is set |
| 527 | to a bound method. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 528 | |
| 529 | - Fixed a minor memory leak in dictobject.c. The content of the free |
| 530 | list was not freed on interpreter shutdown. |
| 531 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 532 | - Limit free list of method and builtin function objects to 256 |
| 533 | entries each. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 534 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 535 | - Patch #1953: Added ``sys._compact_freelists()`` and the C API |
| 536 | functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 537 | to compact the internal free lists of pre-allocted ints and floats. |
| 538 | |
| 539 | - Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 540 | Python expected the return type int but the fork familie returns |
| 541 | pi_t. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 542 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 543 | - Issue #1678380: Fix a bug that identifies 0j and -0j when they |
| 544 | appear in the same code unit. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 545 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 546 | - Issue #2025: Added tuple.count() and tuple.index() methods to comply |
| 547 | with the collections.Sequence API. |
Raymond Hettinger | 65baa34 | 2008-02-07 00:41:02 +0000 | [diff] [blame] | 548 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 549 | - Fixed multiple reinitialization of the Python interpreter. The small |
| 550 | int list in longobject.c has caused a seg fault during the third |
| 551 | finalization. |
Christian Heimes | dfc12ed | 2008-01-31 15:16:38 +0000 | [diff] [blame] | 552 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 553 | - Issue #1973: bytes.fromhex('') raised SystemError. |
Christian Heimes | c04dac0 | 2008-01-30 11:27:57 +0000 | [diff] [blame] | 554 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 555 | - Issue #1771: remove cmp parameter from sorted() and list.sort(). |
Raymond Hettinger | 70b64fc | 2008-01-30 20:15:17 +0000 | [diff] [blame] | 556 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 557 | - Issue #1969: split and rsplit in bytearray are inconsistent. |
Christian Heimes | 7b87615 | 2008-01-30 09:51:48 +0000 | [diff] [blame] | 558 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 559 | - map() no longer accepts None for the first argument. Use zip() |
| 560 | instead. |
Raymond Hettinger | 1dfde1d | 2008-01-22 23:25:35 +0000 | [diff] [blame] | 561 | |
Facundo Batista | 2336bdd | 2008-01-19 19:12:01 +0000 | [diff] [blame] | 562 | - Issue #1769: Now int("- 1") is not allowed any more. |
| 563 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 564 | - Object/longobject.c: long(float('nan')) raises an OverflowError |
| 565 | instead of returning 0. |
Christian Heimes | 386cd1e | 2008-01-15 02:01:20 +0000 | [diff] [blame] | 566 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 567 | - Issue #1762972: __file__ points to the source file instead of the |
| 568 | pyc/pyo file if the py file exists. |
Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 569 | |
Guido van Rossum | ab078dd | 2008-01-06 00:09:11 +0000 | [diff] [blame] | 570 | - Issue #1393: object_richcompare() returns NotImplemented instead of |
| 571 | False if the objects aren't equal, to give the other side a chance. |
| 572 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 573 | - Issue #1692: Interpreter was not displaying location of SyntaxError. |
Kurt B. Kaiser | 43b1509 | 2008-01-05 04:32:22 +0000 | [diff] [blame] | 574 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 575 | - Improve some exception messages when Windows fails to load an |
| 576 | extension module. Now we get for example '%1 is not a valid Win32 |
| 577 | application' instead of 'error code 193'. Also use Unicode strings |
| 578 | to deal with non-English locales. |
Amaury Forgeot d'Arc | bccd63c | 2008-01-04 01:21:27 +0000 | [diff] [blame] | 579 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 580 | - Issue #1587: Added instancemethod wrapper for PyCFunctions. The |
| 581 | Python C API has gained a new type *PyInstanceMethod_Type* and the |
| 582 | functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* |
| 583 | and *PyInstanceMethod_Function(im)*. |
Christian Heimes | a3534a6 | 2007-12-11 19:56:40 +0000 | [diff] [blame] | 584 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 585 | - Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed |
| 586 | from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE |
| 587 | are now enough to print the corresponding list of objects considered |
| 588 | by the garbage collector. |
Amaury Forgeot d'Arc | ad8dcd5 | 2007-12-10 23:58:35 +0000 | [diff] [blame] | 589 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 590 | - Issue #1573: Improper use of the keyword-only syntax makes the |
| 591 | parser crash. |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 592 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 593 | - Issue #1564: The set implementation should special-case PyUnicode |
| 594 | instead of PyString. |
Christian Heimes | 0ded5b5 | 2007-12-10 15:50:56 +0000 | [diff] [blame] | 595 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 596 | - Patch #1031213: Decode source line in SyntaxErrors back to its |
| 597 | original source encoding. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 598 | |
Christian Heimes | 09aaa88 | 2008-02-23 15:01:06 +0000 | [diff] [blame] | 599 | - inspect.getsource() includes the decorators again. |
| 600 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 601 | - Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a |
| 602 | mountpoint. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 603 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 604 | - Fix utf-8-sig incremental decoder, which didn't recognise a BOM when |
| 605 | the first chunk fed to the decoder started with a BOM, but was |
| 606 | longer than 3 bytes. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 607 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 608 | Extension Modules |
| 609 | ----------------- |
| 610 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 611 | - Code for itertools ifilter(), imap(), and izip() moved to bultins |
| 612 | and renamed to filter(), map(), and zip(). Also, renamed |
| 613 | izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). |
Raymond Hettinger | 736c0ab | 2008-03-13 02:09:15 +0000 | [diff] [blame] | 614 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 615 | - Issue #1762972: Readded the reload() function as imp.reload(). |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 616 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 617 | - Bug #2111: mmap segfaults when trying to write a block opened with |
| 618 | PROT_READ. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 619 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 620 | - Issue #2063: correct order of utime and stime in os.times() result |
| 621 | on Windows. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 622 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 623 | Library |
| 624 | ------- |
| 625 | |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 626 | - Weakref dictionaries now inherit from MutableMapping. |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 627 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 628 | - Created new UserDict class in collections module. This one inherits |
| 629 | from and complies with the MutableMapping ABC. Also, moved |
| 630 | UserString and UserList to the collections module. The |
| 631 | MutableUserString class was removed. |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 632 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 633 | - Removed UserDict.DictMixin. Replaced all its uses with |
| 634 | collections.MutableMapping. |
Raymond Hettinger | edf3b73 | 2008-02-04 22:07:15 +0000 | [diff] [blame] | 635 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 636 | - Issue #1703: getpass() should flush after writing prompt. |
Christian Heimes | fc5aa9d | 2007-12-11 09:00:01 +0000 | [diff] [blame] | 637 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 638 | - Issue #1585: IDLE uses non-existent xrange() function. |
| 639 | |
| 640 | - Issue #1578: Problems in win_getpass. |
| 641 | |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 642 | Build |
| 643 | ----- |
| 644 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 645 | - Renamed --enable-unicode configure flag to --with-wide-unicode, |
| 646 | since Unicode strings can't be disabled anymore. |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 647 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 648 | C API |
| 649 | ----- |
| 650 | |
| 651 | - Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, |
| 652 | Py_TYPE and Py_REFCNT. |
| 653 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 654 | - New API PyImport_ImportModuleNoBlock(), works like |
| 655 | PyImport_ImportModule() but won't block on the import lock |
| 656 | (returning an error instead). |
Christian Heimes | 0ec88b3 | 2007-12-10 17:02:00 +0000 | [diff] [blame] | 657 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 658 | |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 659 | What's New in Python 3.0a2? |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 660 | =========================== |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 661 | |
Guido van Rossum | 99533a9 | 2007-12-06 05:07:41 +0000 | [diff] [blame] | 662 | *Release date: 07-Dec-2007* |
| 663 | |
| 664 | (Note: this list is incomplete.) |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 665 | |
Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 666 | Core and Builtins |
| 667 | ----------------- |
| 668 | |
Brett Cannon | 37f7e6e | 2007-10-26 05:42:09 +0000 | [diff] [blame] | 669 | - str8 now has the same construction signature as bytes. |
| 670 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 671 | - Comparisons between str and str8 now return False/True for ==/!=. |
| 672 | sqlite3 returns str8 when recreating on object from it's __conform__ |
| 673 | value. The struct module returns str8 for all string-related |
| 674 | formats. This was true before this change, but becomes more |
| 675 | apparent thanks to string comparisons always being False. |
Brett Cannon | 4043001 | 2007-10-22 20:24:51 +0000 | [diff] [blame] | 676 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 677 | - Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, |
| 678 | buffer, encoding, newline)`. |
Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 679 | |
| 680 | - Fixed `imp.find_module()` to obey the -*- coding: -*- header. |
| 681 | |
| 682 | - Changed `__file__` and `co_filename` to unicode. The path names are decoded |
Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 683 | with `Py_FileSystemDefaultEncoding` and a new API method |
Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 684 | `PyUnicode_DecodeFSDefault(char*)` was added. |
| 685 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 686 | - io.open() and _fileio.FileIO have grown a new argument closefd. A |
| 687 | false value disables the closing of the file descriptor. |
Guido van Rossum | 2dced8b | 2007-10-30 17:27:30 +0000 | [diff] [blame] | 688 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 689 | - Added a new option -b to issues warnings (-bb for errors) about |
| 690 | certain operations between bytes/buffer and str like str(b'') and |
| 691 | comparison. |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 692 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 693 | - The standards streams sys.stdin, stdout and stderr may be None when |
| 694 | the when the C runtime library returns an invalid file descriptor |
| 695 | for the streams (fileno(stdin) < 0). For now this happens only for |
| 696 | Windows GUI apps and scripts started with `pythonw.exe`. |
Christian Heimes | 58cb1b8 | 2007-11-13 02:19:40 +0000 | [diff] [blame] | 697 | |
Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 698 | - Added PCbuild9 directory for VS 2008. |
| 699 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 700 | - Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to |
| 701 | work around a name clash with VS 2008 on Windows. |
Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 702 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 703 | - Unbound methods are gone for good. ClassObject.method returns an |
| 704 | ordinary function object, instance.method still returns a bound |
| 705 | method object. The API of bound methods is cleaned up, too. The |
| 706 | im_class attribute is removed and im_func + im_self are renamed to |
| 707 | __func__ and __self__. The factory PyMethod_New takes only func and |
| 708 | instance as argument. |
Christian Heimes | ff73795 | 2007-11-27 10:40:20 +0000 | [diff] [blame] | 709 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 710 | - intobject.h is no longer included by Python.h. The remains were |
| 711 | moved to longobject.h. It still exists to define several aliases |
| 712 | from PyInt_ to PyLong_ functions. |
Christian Heimes | f78b1c6 | 2007-12-02 16:52:32 +0000 | [diff] [blame] | 713 | |
Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 714 | - Removed sys.maxint, use sys.maxsize instead. |
| 715 | |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 716 | Extension Modules |
| 717 | ----------------- |
| 718 | |
| 719 | - The `hotshot` profiler has been removed; use `cProfile` instead. |
| 720 | |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 721 | Library |
| 722 | ------- |
| 723 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 724 | - When loading an external file using testfile(), the passed-in |
| 725 | encoding argument was being ignored if __loader__ is defined and |
| 726 | forcing the source to be UTF-8. |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 727 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 728 | - The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have |
| 729 | been removed in favor of the tempfile module. |
Guido van Rossum | 687b9c0 | 2007-10-25 23:18:51 +0000 | [diff] [blame] | 730 | |
Christian Heimes | c9543e4 | 2007-11-28 08:28:28 +0000 | [diff] [blame] | 731 | - Removed the 'new' module. |
| 732 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 733 | - Removed all types from the 'types' module that are easily accessable |
| 734 | through builtins. |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 735 | |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 736 | |
Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 737 | What's New in Python 3.0a1? |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 738 | ========================== |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 739 | |
Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 740 | *Release date: 31-Aug-2007* |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 741 | |
| 742 | Core and Builtins |
| 743 | ----------------- |
| 744 | |
Martin v. Löwis | 4738340 | 2007-08-15 07:32:56 +0000 | [diff] [blame] | 745 | - PEP 3131: Support non-ASCII identifiers. |
| 746 | |
Martin v. Löwis | 447d33e | 2007-07-29 18:10:01 +0000 | [diff] [blame] | 747 | - PEP 3120: Change default encoding to UTF-8. |
| 748 | |
Martin v. Löwis | 9f2e346 | 2007-07-21 17:22:18 +0000 | [diff] [blame] | 749 | - PEP 3123: Use proper C inheritance for PyObject. |
| 750 | |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 751 | - Removed the __oct__ and __hex__ special methods and added a bin() |
| 752 | builtin function. |
| 753 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 754 | - PEP 3127: octal literals now start with "0o". Old-style octal |
| 755 | literals are invalid. There are binary literals with a prefix of |
| 756 | "0b". This also affects int(x, 0). |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 757 | |
Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 758 | - None, True, False are now keywords. |
| 759 | |
Guido van Rossum | 29478ef | 2007-05-29 00:39:44 +0000 | [diff] [blame] | 760 | - PEP 3119: isinstance() and issubclass() can be overridden. |
| 761 | |
Guido van Rossum | ebe3e16 | 2007-05-17 18:20:34 +0000 | [diff] [blame] | 762 | - Remove BaseException.message. |
| 763 | |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 764 | - Remove tuple parameter unpacking (PEP 3113). |
| 765 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 766 | - Remove the f_restricted attribute from frames. This naturally leads |
| 767 | to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). |
Guido van Rossum | a8add0e | 2007-05-14 22:03:55 +0000 | [diff] [blame] | 768 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 769 | - PEP 3132 was accepted. That means that you can do ``a, *b = |
| 770 | range(5)`` to assign 0 to a and [1, 2, 3, 4] to b. |
Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 771 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 772 | - range() now returns an iterator rather than a list. Floats are not |
| 773 | allowed. xrange() is no longer defined. |
Guido van Rossum | 805365e | 2007-05-07 22:24:25 +0000 | [diff] [blame] | 774 | |
Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 775 | - Patch #1660500: hide iteration variable in list comps, add set comps |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 776 | and use common code to handle compilation of iterative expressions. |
Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 777 | |
Guido van Rossum | e27dc72 | 2007-03-27 22:37:34 +0000 | [diff] [blame] | 778 | - By default, != returns the opposite of ==, unless the latter returns |
| 779 | NotImplemented. |
| 780 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 781 | - Patch #1680961: sys.exitfunc has been removed and replaced with a |
| 782 | private C-level API. |
Collin Winter | 670e692 | 2007-03-21 02:57:17 +0000 | [diff] [blame] | 783 | |
Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 784 | - PEP 3115: new metaclasses: the metaclass is now specified as a |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 785 | keyword arg in the class statement, which can now use the full |
| 786 | syntax of a parameter list. Also, the metaclass can implement a |
| 787 | __prepare__ function which will be called to create the dictionary |
| 788 | for the new class namespace. |
Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 789 | |
Georg Brandl | 428f064 | 2007-03-18 18:35:15 +0000 | [diff] [blame] | 790 | - The long-deprecated argument "pend" of PyFloat_FromString() has been |
| 791 | removed. |
| 792 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 793 | - The dir() function has been extended to call the __dir__() method on |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 794 | its argument, if it exists. If not, it will work like before. This |
| 795 | allows customizing the output of dir() in the presence of a |
| 796 | __getattr__(). |
Brett Cannon | ba7bf49 | 2007-02-27 00:15:55 +0000 | [diff] [blame] | 797 | |
Neal Norwitz | 8dfc4a9 | 2007-08-11 06:39:53 +0000 | [diff] [blame] | 798 | - Removed support for __members__ and __methods__. |
| 799 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 800 | - Removed indexing/slicing on BaseException. |
Neal Norwitz | 2633c69 | 2007-02-26 22:22:47 +0000 | [diff] [blame] | 801 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 802 | - input() became raw_input(): the name input() now implements the |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 803 | functionality formerly known as raw_input(); the name raw_input() is |
| 804 | no longer defined. |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 805 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 806 | - Classes listed in an 'except' clause must inherit from |
| 807 | BaseException. |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 808 | |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 809 | - PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 810 | and .keys(), .items(), .values() return dict views, which behave |
| 811 | like sets. |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 812 | |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 813 | - PEP 3105: print is now a function. Also (not in the PEP) the |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 814 | 'softspace' attribute of files is now gone (since print() doesn't |
| 815 | use it). A side effect of this change is that you can get |
| 816 | incomplete output lines in interactive sessions: |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 817 | |
| 818 | >>> print(42, end="") |
Kurt B. Kaiser | 2c7f314 | 2007-08-30 21:52:19 +0000 | [diff] [blame] | 819 | 42>>> |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 820 | |
| 821 | We may be able to fix this after the I/O library rewrite. |
Guido van Rossum | 4502c80 | 2007-02-09 05:42:38 +0000 | [diff] [blame] | 822 | |
Brett Cannon | 398db8b | 2007-01-29 23:44:37 +0000 | [diff] [blame] | 823 | - PEP 3102: keyword-only arguments. |
| 824 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 825 | - Int/Long unification is complete. The 'long' built-in type and |
| 826 | literals with trailing 'L' or 'l' have been removed. Performance |
| 827 | may be sub-optimal (haven't really benchmarked). |
Guido van Rossum | ab18684 | 2007-01-14 03:42:30 +0000 | [diff] [blame] | 828 | |
| 829 | - 'except E, V' must now be spelled as 'except E as V' and deletes V |
| 830 | at the end of the except clause; V must be a simple name. |
| 831 | |
Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 832 | - Added function annotations per PEP 3107. |
| 833 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 834 | - Added nonlocal declaration from PEP 3104: |
Jeremy Hylton | a4f9fc6 | 2007-02-27 15:53:28 +0000 | [diff] [blame] | 835 | |
| 836 | >>> def f(x): |
| 837 | ... def inc(): |
| 838 | ... nonlocal x |
| 839 | ... x += 1 |
| 840 | ... return x |
| 841 | ... return inc |
| 842 | ... |
| 843 | >>> inc = f(0) |
| 844 | >>> inc() |
| 845 | 1 |
| 846 | >>> inc() |
| 847 | 2 |
| 848 | |
Georg Brandl | 66a796e | 2006-12-19 20:50:34 +0000 | [diff] [blame] | 849 | - Moved intern() to sys.intern(). |
| 850 | |
| 851 | - exec is now a function. |
| 852 | |
| 853 | - Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. |
Jack Diederich | 4dafcc4 | 2006-11-28 19:15:13 +0000 | [diff] [blame] | 854 | |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 855 | - Classic classes are a thing of the past. All classes are new style. |
| 856 | |
| 857 | - Exceptions *must* derive from BaseException. |
| 858 | |
| 859 | - Integer division always returns a float. The -Q option is no more. |
| 860 | All the following are gone: |
| 861 | * PyNumber_Divide and PyNumber_InPlaceDivide |
| 862 | * __div__, __rdiv__, and __idiv__ |
| 863 | * nb_divide, nb_inplace_divide |
| 864 | * operator.div, operator.idiv, operator.__div__, operator.__idiv__ |
| 865 | (Only __truediv__ and __floordiv__ remain, not sure how to handle them |
| 866 | if we want to re-use __div__ and friends. If we do, it will make |
| 867 | it harder to write code for both 2.x and 3.x.) |
| 868 | |
| 869 | - 'as' and 'with' are keywords. |
| 870 | |
| 871 | - Absolute import is the default behavior for 'import foo' etc. |
| 872 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 873 | - Removed support for syntax: backticks (ie, `x`), <>. |
Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 874 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 875 | - Removed these Python builtins: apply(), callable(), coerce(), |
| 876 | execfile(), file(), reduce(), reload(). |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 877 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 878 | - Removed these Python methods: {}.has_key. |
Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 879 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 880 | - Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 881 | |
| 882 | - Remove C API support for restricted execution. |
| 883 | |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 884 | - zip(), map() and filter() now return iterators, behaving like their |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 885 | itertools counterparts. This also affect map()'s behavior on |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 886 | sequences of unequal length -- it now stops after the shortest one |
| 887 | is exhausted. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 888 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 889 | - Additions: set literals, set comprehensions, ellipsis literal. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 890 | |
| 891 | - Added class decorators per PEP 3129. |
| 892 | |
| 893 | |
| 894 | Extension Modules |
| 895 | ----------------- |
| 896 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 897 | - Removed the imageop module. Obsolete long with its unit tests |
| 898 | becoming useless from the removal of rgbimg and imgfile. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 899 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 900 | - Removed these attributes from the operator module: div, idiv, |
| 901 | __div__, __idiv__, isCallable, sequenceIncludes. |
| 902 | |
| 903 | - Removed these attributes from the sys module: exc_clear(), exc_type, |
| 904 | exc_value, exc_traceback. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 905 | |
| 906 | |
| 907 | Library |
| 908 | ------- |
| 909 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 910 | - Removed the compiler package. Use of the _ast module and (an |
| 911 | eventual) AST -> bytecode mechanism. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 912 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 913 | - Removed these modules: audiodev, Bastion, bsddb185, exceptions, |
| 914 | linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, |
| 915 | stringold, strop, sunaudiodev, timing, xmllib. |
Guido van Rossum | 33d2689 | 2007-08-05 15:29:28 +0000 | [diff] [blame] | 916 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 917 | - Moved the toaiff module to Tools/Demos. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 918 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 919 | - Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, |
| 920 | DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, |
| 921 | IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 922 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 923 | - Removed obsolete functions: commands.getstatus(), os.popen*(). |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 924 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 925 | - Removed functions in the string module that are also string methods; |
Martin v. Löwis | 967f1e3 | 2007-08-14 09:23:10 +0000 | [diff] [blame] | 926 | Remove string.{letters, lowercase, uppercase}. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 927 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 928 | - Removed support for long obsolete platforms: plat-aix3, plat-irix5. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 929 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 930 | - Removed xmlrpclib.SlowParser. It was based on xmllib. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 931 | |
| 932 | - Patch #1680961: atexit has been reimplemented in C. |
| 933 | |
Walter Dörwald | 41980ca | 2007-08-16 21:55:45 +0000 | [diff] [blame] | 934 | - Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. |
| 935 | |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 936 | Build |
| 937 | ----- |
| 938 | |
| 939 | C API |
| 940 | ----- |
| 941 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 942 | - Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 943 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 944 | - Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), |
| 945 | PyMember_Get, PyMember_Set. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 946 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 947 | - Removed these C slots/fields: nb_divide, nb_inplace_divide. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 948 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 949 | - Removed these macros: staticforward, statichere, PyArg_GetInt, |
| 950 | PyArg_NoArgs, _PyObject_Del. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 951 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 952 | - Removed these typedefs: intargfunc, intintargfunc, intobjargproc, |
| 953 | intintobjargproc, getreadbufferproc, getwritebufferproc, |
| 954 | getsegcountproc, getcharbufferproc, memberlist. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 955 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 956 | Tests |
| 957 | ----- |
| 958 | |
Brett Cannon | e7a30f7 | 2008-03-03 03:36:27 +0000 | [diff] [blame] | 959 | - Removed test.testall as test.regrtest replaces it. |
| 960 | |
Brett Cannon | ced04e0 | 2005-02-13 22:53:22 +0000 | [diff] [blame] | 961 | Documentation |
| 962 | ------------- |
| 963 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 964 | Mac |
| 965 | --- |
| 966 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 967 | - The cfmfile module was removed. |
Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 968 | |
Guido van Rossum | 845702c | 2007-08-30 18:44:53 +0000 | [diff] [blame] | 969 | Platforms |
| 970 | --------- |
| 971 | |
| 972 | - Support for BeOS and AtheOS was removed (according to PEP 11). |
| 973 | |
| 974 | - Support for RiscOS, Irix, Tru64 was removed (alledgedly). |
| 975 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 976 | Tools/Demos |
| 977 | ----------- |
| 978 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 979 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 980 | **(For information about older versions, consult the HISTORY file.)** |