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 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 7 | What's new in Python 3.0b1? |
| 8 | =========================== |
| 9 | |
| 10 | *Release date: XX-June-2008* |
| 11 | |
| 12 | Core and Builtins |
| 13 | ----------------- |
| 14 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 15 | - Issue #2963: fix merging oversight that disabled method cache for |
| 16 | all types. |
Georg Brandl | 1bcf35a | 2008-05-25 09:32:09 +0000 | [diff] [blame] | 17 | |
Georg Brandl | c9b0953 | 2008-05-25 09:24:38 +0000 | [diff] [blame] | 18 | - Issue #2964: fix a missing INCREF in instancemethod_descr_get. |
| 19 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 20 | - Issue #2895: Don't crash when given bytes objects as keyword names. |
Georg Brandl | d8b690f | 2008-05-16 17:28:50 +0000 | [diff] [blame] | 21 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 22 | - Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" |
| 23 | code now allows any unicode string and returns a utf-8 encoded |
| 24 | buffer, just like the "s#" code already does. The "z" code was |
| 25 | corrected as well. |
Amaury Forgeot d'Arc | 0740459 | 2008-05-12 13:19:07 +0000 | [diff] [blame] | 26 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 27 | - Issue #2863: generators now have a ``gen.__name__`` attribute that |
| 28 | equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals |
| 29 | ``func.func_code.co_name``. The repr() of a generator now also |
| 30 | contains this name. |
Alexandre Vassalotti | e9f305f | 2008-05-16 04:39:54 +0000 | [diff] [blame] | 31 | |
| 32 | - Issue #2831: enumerate() now has a ``start`` argument. |
| 33 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 34 | - Issue #2801: fix bug in the float.is_integer method where a |
| 35 | ValueError was sometimes incorrectly raised. |
Mark Dickinson | c4352b0 | 2008-05-09 13:55:01 +0000 | [diff] [blame] | 36 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 37 | - The ``--with-toolbox-glue`` option (and the associated |
| 38 | pymactoolbox.h) have been removed. |
Benjamin Peterson | 79629ab | 2008-05-14 21:07:12 +0000 | [diff] [blame] | 39 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 40 | - Issue #2196: hasattr() now lets exceptions which do not inherit |
| 41 | Exception (KeyboardInterrupt, and SystemExit) propagate instead of |
| 42 | ignoring them. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 43 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 44 | Extension Modules |
| 45 | ----------------- |
| 46 | |
Georg Brandl | 38feaf0 | 2008-05-25 07:45:51 +0000 | [diff] [blame] | 47 | - Renamed ``_winreg`` module to ``winreg``. |
| 48 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 49 | - Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the |
| 50 | platform. |
Alexandre Vassalotti | bee3253 | 2008-05-16 18:15:12 +0000 | [diff] [blame] | 51 | |
| 52 | - Support for Windows 9x has been removed from the winsound module. |
| 53 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 54 | - Issue #2870: cmathmodule.c compile error. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 55 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 56 | Library |
| 57 | ------- |
| 58 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 59 | - The ``repr`` module has been renamed to ``reprlib``. |
Alexandre Vassalotti | 1f2ba4b | 2008-05-16 07:12:44 +0000 | [diff] [blame] | 60 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 61 | - The ``statvfs`` module has been removed. |
Brett Cannon | acbb786 | 2008-05-16 00:42:57 +0000 | [diff] [blame] | 62 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 63 | - Issue #1713041: fix pprint's handling of maximum depth. |
Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 64 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 65 | - Issue #2250: Exceptions raised during evaluation of names in |
| 66 | rlcompleter's ``Completer.complete()`` method are now caught and |
| 67 | ignored. |
Alexandre Vassalotti | 8ae3e05 | 2008-05-16 00:41:41 +0000 | [diff] [blame] | 68 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 69 | - Patch #2659: Added ``break_on_hyphens`` option to textwrap's |
| 70 | ``TextWrapper`` class. |
Alexandre Vassalotti | 1d1eaa4 | 2008-05-14 22:59:42 +0000 | [diff] [blame] | 71 | |
Alexandre Vassalotti | 6461e10 | 2008-05-15 22:09:29 +0000 | [diff] [blame] | 72 | - Issue #2487: change the semantics of math.ldexp(x, n) when n is too |
| 73 | large to fit in a C long. ldexp(x, n) now returns a zero (with |
| 74 | suitable sign) if n is large and negative; previously, it raised |
| 75 | OverflowError. |
| 76 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 77 | - The ``ConfigParser`` module has been renamed to ``configparser``. |
Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 78 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 79 | - Issue #2865: webbrowser.open() works again in a KDE environment. |
Amaury Forgeot d'Arc | 2b2b44d | 2008-05-12 14:41:00 +0000 | [diff] [blame] | 80 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 81 | - The ``multifile`` module has been removed. |
Brett Cannon | d3343cb | 2008-05-12 03:18:21 +0000 | [diff] [blame] | 82 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 83 | - The ``SocketServer`` module has been renamed to ``socketserver``. |
Alexandre Vassalotti | ce26195 | 2008-05-12 02:31:37 +0000 | [diff] [blame] | 84 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 85 | - Fixed the ``__all__`` setting on ``collections`` to include |
| 86 | ``UserList`` and ``UserString``. |
Brett Cannon | 23a4a7b | 2008-05-12 00:56:28 +0000 | [diff] [blame] | 87 | |
Brett Cannon | cf3520c | 2008-05-11 22:47:58 +0000 | [diff] [blame] | 88 | - The sre module has been removed. |
| 89 | |
Alexandre Vassalotti | f260e44 | 2008-05-11 19:59:59 +0000 | [diff] [blame] | 90 | - The Queue module has been renamed to queue. |
| 91 | |
Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 92 | - The copy_reg module has been renamed to copyreg. |
| 93 | |
Brett Cannon | d8b61ee | 2008-05-11 03:00:26 +0000 | [diff] [blame] | 94 | - The mhlib module has been removed. |
| 95 | |
Brett Cannon | bd47442 | 2008-05-10 22:42:14 +0000 | [diff] [blame] | 96 | - The ihooks module has been removed. |
| 97 | |
Brett Cannon | b59a2bd | 2008-05-10 22:03:16 +0000 | [diff] [blame] | 98 | - The fpformat module has been removed. |
| 99 | |
Brett Cannon | f4fd993 | 2008-05-10 21:11:46 +0000 | [diff] [blame] | 100 | - The dircache module has been removed. |
| 101 | |
Brett Cannon | d175b4c | 2008-05-10 03:19:54 +0000 | [diff] [blame] | 102 | - The Canvas module has been removed. |
| 103 | |
Mark Dickinson | b27406c | 2008-05-09 13:42:33 +0000 | [diff] [blame] | 104 | - The Decimal module gained the magic methods __round__, __ceil__, |
| 105 | __floor__ and __trunc__, to give support for round, math.ceil, |
| 106 | math.floor and math.trunc. |
| 107 | |
Brett Cannon | 900ee3a | 2008-05-08 20:31:11 +0000 | [diff] [blame] | 108 | - The user module has been removed. |
| 109 | |
Brett Cannon | 34afe87 | 2008-05-08 20:31:44 +0000 | [diff] [blame] | 110 | - The mutex module has been removed. |
| 111 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 112 | - The imputil module has been removed. |
| 113 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 114 | - os.path.walk has been removed in favor of os.walk. |
Benjamin Peterson | d71ca41 | 2008-05-08 23:44:58 +0000 | [diff] [blame] | 115 | |
Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 116 | - pdb gained the "until" command. |
| 117 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 118 | - The test.test_support module has been renamed to test.support. |
Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 119 | |
Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 120 | Build |
| 121 | ----- |
| 122 | |
| 123 | |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 124 | What's New in Python 3.0a5? |
| 125 | =========================== |
| 126 | |
Barry Warsaw | 9eab8b0 | 2008-05-08 13:05:38 +0000 | [diff] [blame] | 127 | *Release date: 08-May-2008* |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 128 | |
| 129 | Core and Builtins |
| 130 | ----------------- |
| 131 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 132 | - Fixed misbehaviour of PyLong_FromSsize_t on systems where |
| 133 | sizeof(size_t) > sizeof(long). |
Mark Dickinson | 7ab6be2 | 2008-04-15 21:42:42 +0000 | [diff] [blame] | 134 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 135 | - Issue #2221: Corrected a SystemError "error return without exception |
| 136 | set", when the code executed by exec() raises an exception, and |
| 137 | sys.stdout.flush() also raises an error. |
Amaury Forgeot d'Arc | 7fedbe5 | 2008-04-10 21:03:09 +0000 | [diff] [blame] | 138 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 139 | - Bug #2565: The repr() of type objects now calls them 'class', not |
| 140 | 'type' - whether they are builtin types or not. |
Martin v. Löwis | 250ad61 | 2008-04-07 05:43:42 +0000 | [diff] [blame] | 141 | |
Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 142 | - The command line processing was converted to pass Unicode strings |
| 143 | through as unmodified as possible; as a consequence, the C API |
| 144 | related to command line arguments was changed to use wchar_t. |
| 145 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 146 | - All backslashes in raw strings are interpreted literally. This |
| 147 | means that '\u' and '\U' escapes are not treated specially. |
Benjamin Peterson | a2f837f | 2008-04-28 21:05:10 +0000 | [diff] [blame] | 148 | |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 149 | Extension Modules |
| 150 | ----------------- |
| 151 | |
| 152 | Library |
| 153 | ------- |
| 154 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 155 | - ctypes objects now support the PEP3118 buffer interface. |
Thomas Heller | b041fda | 2008-04-30 17:11:46 +0000 | [diff] [blame] | 156 | |
Thomas Heller | e106dc3 | 2008-04-24 18:39:36 +0000 | [diff] [blame] | 157 | - Issue #2682: ctypes callback functions now longer contain a cyclic |
| 158 | reference to themselves. |
| 159 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 160 | - Issue #2058: Remove the buf attribute and add __slots__ to the |
| 161 | TarInfo class in order to reduce tarfile's memory usage. |
Lars Gustäbel | c2ea8c6 | 2008-04-14 10:05:48 +0000 | [diff] [blame] | 162 | |
Martin v. Löwis | 8efc62c | 2008-04-10 19:02:25 +0000 | [diff] [blame] | 163 | - Bug #2606: Avoid calling .sort() on a dict_keys object. |
| 164 | |
Thomas Heller | bff533b | 2008-04-04 19:53:14 +0000 | [diff] [blame] | 165 | - The bundled libffi copy is now in sync with the recently released |
| 166 | libffi3.0.5 version, apart from some small changes to |
| 167 | Modules/_ctypes/libffi/configure.ac. |
| 168 | |
Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 169 | Build |
| 170 | ----- |
| 171 | |
Mark Dickinson | b0e2b4c | 2008-04-26 20:48:56 +0000 | [diff] [blame] | 172 | - Issue #1496032: On alpha, use -mieee when gcc is the compiler. |
| 173 | |
Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 174 | - "make install" is now an alias for "make altinstall", to prevent |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 175 | accidentally overwriting a Python 2.x installation. Use "make |
| 176 | fullinstall" to force Python 3.0 to be installed as "python". |
Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 177 | |
Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 178 | - Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when |
| 179 | gcc is used as compiler. |
Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 180 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 181 | |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 182 | What's New in Python 3.0a4? |
| 183 | =========================== |
| 184 | |
Barry Warsaw | bb5cd08 | 2008-04-02 23:33:27 +0000 | [diff] [blame] | 185 | *Release date: 02-Apr-2008* |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 186 | |
Martin v. Löwis | 2593146 | 2008-03-17 20:43:42 +0000 | [diff] [blame] | 187 | Core and Builtins |
| 188 | ----------------- |
| 189 | |
| 190 | - Bug #2301: Don't try decoding the source code into the original |
| 191 | encoding for syntax errors. |
| 192 | |
Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 193 | Extension Modules |
| 194 | ----------------- |
| 195 | |
Neal Norwitz | 6cf49cf | 2008-03-24 06:22:57 +0000 | [diff] [blame] | 196 | - The dl module was removed, use the ctypes module instead. |
| 197 | |
Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 198 | - Use wchar_t functions in _locale module. |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 199 | |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 200 | Library |
| 201 | ------- |
| 202 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 203 | - The class distutils.commands.build_py.build_py_2to3 can be used as a |
| 204 | build_py replacement to automatically run 2to3 on modules that are |
| 205 | going to be installed. |
Martin v. Löwis | 73a22f0 | 2008-03-22 00:35:10 +0000 | [diff] [blame] | 206 | |
Guido van Rossum | f416981 | 2008-03-17 22:56:06 +0000 | [diff] [blame] | 207 | - A new pickle protocol (protocol 3) is added with explicit support |
| 208 | for bytes. This is the default protocol. It intentionally cannot |
| 209 | be unpickled by Python 2.x. |
| 210 | |
| 211 | - When a pickle written by Python 2.x contains an (8-bit) str |
| 212 | instance, this is now decoded to a (Unicode) str instance. The |
| 213 | encoding used to do this defaults to ASCII, but can be overridden |
| 214 | via two new keyword arguments to the Unpickler class. Previously |
| 215 | this would create bytes instances, which is usually wrong: str |
| 216 | instances are often used to pickle attribute names etc., and text is |
| 217 | more common than binary data anyway. |
| 218 | |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 219 | - Default to ASCII as the locale.getpreferredencoding, if the POSIX |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 220 | system doesn't support CODESET and LANG isn't set or doesn't allow |
| 221 | deduction of an encoding. |
Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 222 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 223 | - Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned |
| 224 | value. |
Gregory P. Smith | 425136b | 2008-03-17 20:45:21 +0000 | [diff] [blame] | 225 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 226 | - Issue #719888: Updated tokenize to use a bytes API. generate_tokens |
| 227 | has been renamed tokenize and now works with bytes rather than |
| 228 | strings. A new detect_encoding function has been added for |
| 229 | determining source file encoding according to PEP-0263. Token |
| 230 | sequences returned by tokenize always start with an ENCODING token |
| 231 | which specifies the encoding used to decode the file. This token is |
| 232 | used to encode the output of untokenize back to bytes. |
| 233 | |
Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 234 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 235 | What's New in Python 3.0a3? |
| 236 | =========================== |
| 237 | |
Barry Warsaw | 659fc42 | 2008-03-01 17:45:23 +0000 | [diff] [blame] | 238 | *Release date: 29-Feb-2008* |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 239 | |
| 240 | Core and Builtins |
| 241 | ----------------- |
| 242 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 243 | - Issue #2282: io.TextIOWrapper was not overriding seekable() from |
| 244 | io.IOBase. |
Ka-Ping Yee | ddaa706 | 2008-03-17 20:35:15 +0000 | [diff] [blame] | 245 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 246 | - Issue #2115: Important speedup in setting __slot__ attributes. Also |
| 247 | prevent a possible crash: an Abstract Base Class would try to access |
| 248 | a slot on a registered virtual subclass. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 249 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 250 | - Fixed repr() and str() of complex numbers with infinity or nan as |
| 251 | real or imaginary part. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 252 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 253 | - Clear all free list during a gc.collect() of the highest generation |
| 254 | in order to allow pymalloc to free more arenas. Python may give back |
| 255 | memory to the OS earlier. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 256 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 257 | - Issue #2045: Fix an infinite recursion triggered when printing a |
| 258 | subclass of collections.defaultdict, if its default_factory is set |
| 259 | to a bound method. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 260 | |
| 261 | - Fixed a minor memory leak in dictobject.c. The content of the free |
| 262 | list was not freed on interpreter shutdown. |
| 263 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 264 | - Limit free list of method and builtin function objects to 256 |
| 265 | entries each. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 266 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 267 | - Patch #1953: Added ``sys._compact_freelists()`` and the C API |
| 268 | functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 269 | to compact the internal free lists of pre-allocted ints and floats. |
| 270 | |
| 271 | - Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 272 | Python expected the return type int but the fork familie returns |
| 273 | pi_t. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 274 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 275 | - Issue #1678380: Fix a bug that identifies 0j and -0j when they |
| 276 | appear in the same code unit. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 277 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 278 | - Issue #2025: Added tuple.count() and tuple.index() methods to comply |
| 279 | with the collections.Sequence API. |
Raymond Hettinger | 65baa34 | 2008-02-07 00:41:02 +0000 | [diff] [blame] | 280 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 281 | - Fixed multiple reinitialization of the Python interpreter. The small |
| 282 | int list in longobject.c has caused a seg fault during the third |
| 283 | finalization. |
Christian Heimes | dfc12ed | 2008-01-31 15:16:38 +0000 | [diff] [blame] | 284 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 285 | - Issue #1973: bytes.fromhex('') raised SystemError. |
Christian Heimes | c04dac0 | 2008-01-30 11:27:57 +0000 | [diff] [blame] | 286 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 287 | - Issue #1771: remove cmp parameter from sorted() and list.sort(). |
Raymond Hettinger | 70b64fc | 2008-01-30 20:15:17 +0000 | [diff] [blame] | 288 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 289 | - Issue #1969: split and rsplit in bytearray are inconsistent. |
Christian Heimes | 7b87615 | 2008-01-30 09:51:48 +0000 | [diff] [blame] | 290 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 291 | - map() no longer accepts None for the first argument. Use zip() |
| 292 | instead. |
Raymond Hettinger | 1dfde1d | 2008-01-22 23:25:35 +0000 | [diff] [blame] | 293 | |
Facundo Batista | 2336bdd | 2008-01-19 19:12:01 +0000 | [diff] [blame] | 294 | - Issue #1769: Now int("- 1") is not allowed any more. |
| 295 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 296 | - Object/longobject.c: long(float('nan')) raises an OverflowError |
| 297 | instead of returning 0. |
Christian Heimes | 386cd1e | 2008-01-15 02:01:20 +0000 | [diff] [blame] | 298 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 299 | - Issue #1762972: __file__ points to the source file instead of the |
| 300 | pyc/pyo file if the py file exists. |
Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 301 | |
Guido van Rossum | ab078dd | 2008-01-06 00:09:11 +0000 | [diff] [blame] | 302 | - Issue #1393: object_richcompare() returns NotImplemented instead of |
| 303 | False if the objects aren't equal, to give the other side a chance. |
| 304 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 305 | - Issue #1692: Interpreter was not displaying location of SyntaxError. |
Kurt B. Kaiser | 43b1509 | 2008-01-05 04:32:22 +0000 | [diff] [blame] | 306 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 307 | - Improve some exception messages when Windows fails to load an |
| 308 | extension module. Now we get for example '%1 is not a valid Win32 |
| 309 | application' instead of 'error code 193'. Also use Unicode strings |
| 310 | to deal with non-English locales. |
Amaury Forgeot d'Arc | bccd63c | 2008-01-04 01:21:27 +0000 | [diff] [blame] | 311 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 312 | - Issue #1587: Added instancemethod wrapper for PyCFunctions. The |
| 313 | Python C API has gained a new type *PyInstanceMethod_Type* and the |
| 314 | functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* |
| 315 | and *PyInstanceMethod_Function(im)*. |
Christian Heimes | a3534a6 | 2007-12-11 19:56:40 +0000 | [diff] [blame] | 316 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 317 | - Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed |
| 318 | from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE |
| 319 | are now enough to print the corresponding list of objects considered |
| 320 | by the garbage collector. |
Amaury Forgeot d'Arc | ad8dcd5 | 2007-12-10 23:58:35 +0000 | [diff] [blame] | 321 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 322 | - Issue #1573: Improper use of the keyword-only syntax makes the |
| 323 | parser crash. |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 324 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 325 | - Issue #1564: The set implementation should special-case PyUnicode |
| 326 | instead of PyString. |
Christian Heimes | 0ded5b5 | 2007-12-10 15:50:56 +0000 | [diff] [blame] | 327 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 328 | - Patch #1031213: Decode source line in SyntaxErrors back to its |
| 329 | original source encoding. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 330 | |
Christian Heimes | 09aaa88 | 2008-02-23 15:01:06 +0000 | [diff] [blame] | 331 | - inspect.getsource() includes the decorators again. |
| 332 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 333 | - Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a |
| 334 | mountpoint. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 335 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 336 | - Fix utf-8-sig incremental decoder, which didn't recognise a BOM when |
| 337 | the first chunk fed to the decoder started with a BOM, but was |
| 338 | longer than 3 bytes. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 339 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 340 | Extension Modules |
| 341 | ----------------- |
| 342 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 343 | - Code for itertools ifilter(), imap(), and izip() moved to bultins |
| 344 | and renamed to filter(), map(), and zip(). Also, renamed |
| 345 | izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). |
Raymond Hettinger | 736c0ab | 2008-03-13 02:09:15 +0000 | [diff] [blame] | 346 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 347 | - Issue #1762972: Readded the reload() function as imp.reload(). |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 348 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 349 | - Bug #2111: mmap segfaults when trying to write a block opened with |
| 350 | PROT_READ. |
Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 351 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 352 | - Issue #2063: correct order of utime and stime in os.times() result |
| 353 | on Windows. |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 354 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 355 | Library |
| 356 | ------- |
| 357 | |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 358 | - Weakref dictionaries now inherit from MutableMapping. |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 359 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 360 | - Created new UserDict class in collections module. This one inherits |
| 361 | from and complies with the MutableMapping ABC. Also, moved |
| 362 | UserString and UserList to the collections module. The |
| 363 | MutableUserString class was removed. |
Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 364 | |
Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 365 | - Removed UserDict.DictMixin. Replaced all its uses with |
| 366 | collections.MutableMapping. |
Raymond Hettinger | edf3b73 | 2008-02-04 22:07:15 +0000 | [diff] [blame] | 367 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 368 | - Issue #1703: getpass() should flush after writing prompt. |
Christian Heimes | fc5aa9d | 2007-12-11 09:00:01 +0000 | [diff] [blame] | 369 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 370 | - Issue #1585: IDLE uses non-existent xrange() function. |
| 371 | |
| 372 | - Issue #1578: Problems in win_getpass. |
| 373 | |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 374 | Build |
| 375 | ----- |
| 376 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 377 | - Renamed --enable-unicode configure flag to --with-wide-unicode, |
| 378 | since Unicode strings can't be disabled anymore. |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 379 | |
Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 380 | C API |
| 381 | ----- |
| 382 | |
| 383 | - Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, |
| 384 | Py_TYPE and Py_REFCNT. |
| 385 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 386 | - New API PyImport_ImportModuleNoBlock(), works like |
| 387 | PyImport_ImportModule() but won't block on the import lock |
| 388 | (returning an error instead). |
Christian Heimes | 0ec88b3 | 2007-12-10 17:02:00 +0000 | [diff] [blame] | 389 | |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 390 | |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 391 | What's New in Python 3.0a2? |
Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 392 | =========================== |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 393 | |
Guido van Rossum | 99533a9 | 2007-12-06 05:07:41 +0000 | [diff] [blame] | 394 | *Release date: 07-Dec-2007* |
| 395 | |
| 396 | (Note: this list is incomplete.) |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 397 | |
Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 398 | Core and Builtins |
| 399 | ----------------- |
| 400 | |
Brett Cannon | 37f7e6e | 2007-10-26 05:42:09 +0000 | [diff] [blame] | 401 | - str8 now has the same construction signature as bytes. |
| 402 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 403 | - Comparisons between str and str8 now return False/True for ==/!=. |
| 404 | sqlite3 returns str8 when recreating on object from it's __conform__ |
| 405 | value. The struct module returns str8 for all string-related |
| 406 | formats. This was true before this change, but becomes more |
| 407 | apparent thanks to string comparisons always being False. |
Brett Cannon | 4043001 | 2007-10-22 20:24:51 +0000 | [diff] [blame] | 408 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 409 | - Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, |
| 410 | buffer, encoding, newline)`. |
Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 411 | |
| 412 | - Fixed `imp.find_module()` to obey the -*- coding: -*- header. |
| 413 | |
| 414 | - Changed `__file__` and `co_filename` to unicode. The path names are decoded |
| 415 | with `Py_FileSystemDefaultEncoding` and a new API method |
| 416 | `PyUnicode_DecodeFSDefault(char*)` was added. |
| 417 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 418 | - io.open() and _fileio.FileIO have grown a new argument closefd. A |
| 419 | false value disables the closing of the file descriptor. |
Guido van Rossum | 2dced8b | 2007-10-30 17:27:30 +0000 | [diff] [blame] | 420 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 421 | - Added a new option -b to issues warnings (-bb for errors) about |
| 422 | certain operations between bytes/buffer and str like str(b'') and |
| 423 | comparison. |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 424 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 425 | - The standards streams sys.stdin, stdout and stderr may be None when |
| 426 | the when the C runtime library returns an invalid file descriptor |
| 427 | for the streams (fileno(stdin) < 0). For now this happens only for |
| 428 | Windows GUI apps and scripts started with `pythonw.exe`. |
Christian Heimes | 58cb1b8 | 2007-11-13 02:19:40 +0000 | [diff] [blame] | 429 | |
Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 430 | - Added PCbuild9 directory for VS 2008. |
| 431 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 432 | - Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to |
| 433 | work around a name clash with VS 2008 on Windows. |
Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 434 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 435 | - Unbound methods are gone for good. ClassObject.method returns an |
| 436 | ordinary function object, instance.method still returns a bound |
| 437 | method object. The API of bound methods is cleaned up, too. The |
| 438 | im_class attribute is removed and im_func + im_self are renamed to |
| 439 | __func__ and __self__. The factory PyMethod_New takes only func and |
| 440 | instance as argument. |
Christian Heimes | ff73795 | 2007-11-27 10:40:20 +0000 | [diff] [blame] | 441 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 442 | - intobject.h is no longer included by Python.h. The remains were |
| 443 | moved to longobject.h. It still exists to define several aliases |
| 444 | from PyInt_ to PyLong_ functions. |
Christian Heimes | f78b1c6 | 2007-12-02 16:52:32 +0000 | [diff] [blame] | 445 | |
Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 446 | - Removed sys.maxint, use sys.maxsize instead. |
| 447 | |
Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 448 | Extension Modules |
| 449 | ----------------- |
| 450 | |
| 451 | - The `hotshot` profiler has been removed; use `cProfile` instead. |
| 452 | |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 453 | Library |
| 454 | ------- |
| 455 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 456 | - When loading an external file using testfile(), the passed-in |
| 457 | encoding argument was being ignored if __loader__ is defined and |
| 458 | forcing the source to be UTF-8. |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 459 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 460 | - The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have |
| 461 | been removed in favor of the tempfile module. |
Guido van Rossum | 687b9c0 | 2007-10-25 23:18:51 +0000 | [diff] [blame] | 462 | |
Christian Heimes | c9543e4 | 2007-11-28 08:28:28 +0000 | [diff] [blame] | 463 | - Removed the 'new' module. |
| 464 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 465 | - Removed all types from the 'types' module that are easily accessable |
| 466 | through builtins. |
Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 467 | |
Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 468 | |
Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 469 | What's New in Python 3.0a1? |
Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 470 | ========================== |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 471 | |
Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 472 | *Release date: 31-Aug-2007* |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 473 | |
| 474 | Core and Builtins |
| 475 | ----------------- |
| 476 | |
Martin v. Löwis | 4738340 | 2007-08-15 07:32:56 +0000 | [diff] [blame] | 477 | - PEP 3131: Support non-ASCII identifiers. |
| 478 | |
Martin v. Löwis | 447d33e | 2007-07-29 18:10:01 +0000 | [diff] [blame] | 479 | - PEP 3120: Change default encoding to UTF-8. |
| 480 | |
Martin v. Löwis | 9f2e346 | 2007-07-21 17:22:18 +0000 | [diff] [blame] | 481 | - PEP 3123: Use proper C inheritance for PyObject. |
| 482 | |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 483 | - Removed the __oct__ and __hex__ special methods and added a bin() |
| 484 | builtin function. |
| 485 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 486 | - PEP 3127: octal literals now start with "0o". Old-style octal |
| 487 | literals are invalid. There are binary literals with a prefix of |
| 488 | "0b". This also affects int(x, 0). |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 489 | |
Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 490 | - None, True, False are now keywords. |
| 491 | |
Guido van Rossum | 29478ef | 2007-05-29 00:39:44 +0000 | [diff] [blame] | 492 | - PEP 3119: isinstance() and issubclass() can be overridden. |
| 493 | |
Guido van Rossum | ebe3e16 | 2007-05-17 18:20:34 +0000 | [diff] [blame] | 494 | - Remove BaseException.message. |
| 495 | |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 496 | - Remove tuple parameter unpacking (PEP 3113). |
| 497 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 498 | - Remove the f_restricted attribute from frames. This naturally leads |
| 499 | to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). |
Guido van Rossum | a8add0e | 2007-05-14 22:03:55 +0000 | [diff] [blame] | 500 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 501 | - PEP 3132 was accepted. That means that you can do ``a, *b = |
| 502 | 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] | 503 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 504 | - range() now returns an iterator rather than a list. Floats are not |
| 505 | allowed. xrange() is no longer defined. |
Guido van Rossum | 805365e | 2007-05-07 22:24:25 +0000 | [diff] [blame] | 506 | |
Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 507 | - Patch #1660500: hide iteration variable in list comps, add set comps |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 508 | and use common code to handle compilation of iterative expressions. |
Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 509 | |
Guido van Rossum | e27dc72 | 2007-03-27 22:37:34 +0000 | [diff] [blame] | 510 | - By default, != returns the opposite of ==, unless the latter returns |
| 511 | NotImplemented. |
| 512 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 513 | - Patch #1680961: sys.exitfunc has been removed and replaced with a |
| 514 | private C-level API. |
Collin Winter | 670e692 | 2007-03-21 02:57:17 +0000 | [diff] [blame] | 515 | |
Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 516 | - PEP 3115: new metaclasses: the metaclass is now specified as a |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 517 | keyword arg in the class statement, which can now use the full |
| 518 | syntax of a parameter list. Also, the metaclass can implement a |
| 519 | __prepare__ function which will be called to create the dictionary |
| 520 | for the new class namespace. |
Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 521 | |
Georg Brandl | 428f064 | 2007-03-18 18:35:15 +0000 | [diff] [blame] | 522 | - The long-deprecated argument "pend" of PyFloat_FromString() has been |
| 523 | removed. |
| 524 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 525 | - The dir() function has been extended to call the __dir__() method on |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 526 | its argument, if it exists. If not, it will work like before. This |
| 527 | allows customizing the output of dir() in the presence of a |
| 528 | __getattr__(). |
Brett Cannon | ba7bf49 | 2007-02-27 00:15:55 +0000 | [diff] [blame] | 529 | |
Neal Norwitz | 8dfc4a9 | 2007-08-11 06:39:53 +0000 | [diff] [blame] | 530 | - Removed support for __members__ and __methods__. |
| 531 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 532 | - Removed indexing/slicing on BaseException. |
Neal Norwitz | 2633c69 | 2007-02-26 22:22:47 +0000 | [diff] [blame] | 533 | |
Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 534 | - input() became raw_input(): the name input() now implements the |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 535 | functionality formerly known as raw_input(); the name raw_input() is |
| 536 | no longer defined. |
Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 537 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 538 | - Classes listed in an 'except' clause must inherit from |
| 539 | BaseException. |
Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 540 | |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 541 | - PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 542 | and .keys(), .items(), .values() return dict views, which behave |
| 543 | like sets. |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 544 | |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 545 | - 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^] | 546 | 'softspace' attribute of files is now gone (since print() doesn't |
| 547 | use it). A side effect of this change is that you can get |
| 548 | incomplete output lines in interactive sessions: |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 549 | |
| 550 | >>> print(42, end="") |
Kurt B. Kaiser | 2c7f314 | 2007-08-30 21:52:19 +0000 | [diff] [blame] | 551 | 42>>> |
Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 552 | |
| 553 | 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] | 554 | |
Brett Cannon | 398db8b | 2007-01-29 23:44:37 +0000 | [diff] [blame] | 555 | - PEP 3102: keyword-only arguments. |
| 556 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 557 | - Int/Long unification is complete. The 'long' built-in type and |
| 558 | literals with trailing 'L' or 'l' have been removed. Performance |
| 559 | may be sub-optimal (haven't really benchmarked). |
Guido van Rossum | ab18684 | 2007-01-14 03:42:30 +0000 | [diff] [blame] | 560 | |
| 561 | - 'except E, V' must now be spelled as 'except E as V' and deletes V |
| 562 | at the end of the except clause; V must be a simple name. |
| 563 | |
Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 564 | - Added function annotations per PEP 3107. |
| 565 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 566 | - Added nonlocal declaration from PEP 3104: |
Jeremy Hylton | a4f9fc6 | 2007-02-27 15:53:28 +0000 | [diff] [blame] | 567 | |
| 568 | >>> def f(x): |
| 569 | ... def inc(): |
| 570 | ... nonlocal x |
| 571 | ... x += 1 |
| 572 | ... return x |
| 573 | ... return inc |
| 574 | ... |
| 575 | >>> inc = f(0) |
| 576 | >>> inc() |
| 577 | 1 |
| 578 | >>> inc() |
| 579 | 2 |
| 580 | |
Georg Brandl | 66a796e | 2006-12-19 20:50:34 +0000 | [diff] [blame] | 581 | - Moved intern() to sys.intern(). |
| 582 | |
| 583 | - exec is now a function. |
| 584 | |
| 585 | - Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. |
Jack Diederich | 4dafcc4 | 2006-11-28 19:15:13 +0000 | [diff] [blame] | 586 | |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 587 | - Classic classes are a thing of the past. All classes are new style. |
| 588 | |
| 589 | - Exceptions *must* derive from BaseException. |
| 590 | |
| 591 | - Integer division always returns a float. The -Q option is no more. |
| 592 | All the following are gone: |
| 593 | * PyNumber_Divide and PyNumber_InPlaceDivide |
| 594 | * __div__, __rdiv__, and __idiv__ |
| 595 | * nb_divide, nb_inplace_divide |
| 596 | * operator.div, operator.idiv, operator.__div__, operator.__idiv__ |
| 597 | (Only __truediv__ and __floordiv__ remain, not sure how to handle them |
| 598 | if we want to re-use __div__ and friends. If we do, it will make |
| 599 | it harder to write code for both 2.x and 3.x.) |
| 600 | |
| 601 | - 'as' and 'with' are keywords. |
| 602 | |
| 603 | - Absolute import is the default behavior for 'import foo' etc. |
| 604 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 605 | - Removed support for syntax: backticks (ie, `x`), <>. |
Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 606 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 607 | - Removed these Python builtins: apply(), callable(), coerce(), |
| 608 | execfile(), file(), reduce(), reload(). |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 609 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 610 | - Removed these Python methods: {}.has_key. |
Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 611 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 612 | - Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 613 | |
| 614 | - Remove C API support for restricted execution. |
| 615 | |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 616 | - zip(), map() and filter() now return iterators, behaving like their |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 617 | itertools counterparts. This also affect map()'s behavior on |
Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 618 | sequences of unequal length -- it now stops after the shortest one |
| 619 | is exhausted. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 620 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 621 | - Additions: set literals, set comprehensions, ellipsis literal. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 622 | |
| 623 | - Added class decorators per PEP 3129. |
| 624 | |
| 625 | |
| 626 | Extension Modules |
| 627 | ----------------- |
| 628 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 629 | - Removed the imageop module. Obsolete long with its unit tests |
| 630 | becoming useless from the removal of rgbimg and imgfile. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 631 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 632 | - Removed these attributes from the operator module: div, idiv, |
| 633 | __div__, __idiv__, isCallable, sequenceIncludes. |
| 634 | |
| 635 | - Removed these attributes from the sys module: exc_clear(), exc_type, |
| 636 | exc_value, exc_traceback. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 637 | |
| 638 | |
| 639 | Library |
| 640 | ------- |
| 641 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 642 | - Removed the compiler package. Use of the _ast module and (an |
| 643 | eventual) AST -> bytecode mechanism. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 644 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 645 | - Removed these modules: audiodev, Bastion, bsddb185, exceptions, |
| 646 | linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, |
| 647 | stringold, strop, sunaudiodev, timing, xmllib. |
Guido van Rossum | 33d2689 | 2007-08-05 15:29:28 +0000 | [diff] [blame] | 648 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 649 | - Moved the toaiff module to Tools/Demos. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 650 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 651 | - Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, |
| 652 | DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, |
| 653 | IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 654 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 655 | - Removed obsolete functions: commands.getstatus(), os.popen*(). |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 656 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 657 | - Removed functions in the string module that are also string methods; |
Martin v. Löwis | 967f1e3 | 2007-08-14 09:23:10 +0000 | [diff] [blame] | 658 | Remove string.{letters, lowercase, uppercase}. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 659 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 660 | - Removed support for long obsolete platforms: plat-aix3, plat-irix5. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 661 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 662 | - Removed xmlrpclib.SlowParser. It was based on xmllib. |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 663 | |
| 664 | - Patch #1680961: atexit has been reimplemented in C. |
| 665 | |
Walter Dörwald | 41980ca | 2007-08-16 21:55:45 +0000 | [diff] [blame] | 666 | - Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. |
| 667 | |
Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 668 | Build |
| 669 | ----- |
| 670 | |
| 671 | C API |
| 672 | ----- |
| 673 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 674 | - Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 675 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 676 | - Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), |
| 677 | PyMember_Get, PyMember_Set. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 678 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 679 | - Removed these C slots/fields: nb_divide, nb_inplace_divide. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 680 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 681 | - Removed these macros: staticforward, statichere, PyArg_GetInt, |
| 682 | PyArg_NoArgs, _PyObject_Del. |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 683 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 684 | - Removed these typedefs: intargfunc, intintargfunc, intobjargproc, |
| 685 | intintobjargproc, getreadbufferproc, getwritebufferproc, |
| 686 | getsegcountproc, getcharbufferproc, memberlist. |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 687 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 688 | Tests |
| 689 | ----- |
| 690 | |
Brett Cannon | e7a30f7 | 2008-03-03 03:36:27 +0000 | [diff] [blame] | 691 | - Removed test.testall as test.regrtest replaces it. |
| 692 | |
Brett Cannon | ced04e0 | 2005-02-13 22:53:22 +0000 | [diff] [blame] | 693 | Documentation |
| 694 | ------------- |
| 695 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 696 | Mac |
| 697 | --- |
| 698 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 699 | - The cfmfile module was removed. |
Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 700 | |
Guido van Rossum | 845702c | 2007-08-30 18:44:53 +0000 | [diff] [blame] | 701 | Platforms |
| 702 | --------- |
| 703 | |
| 704 | - Support for BeOS and AtheOS was removed (according to PEP 11). |
| 705 | |
| 706 | - Support for RiscOS, Irix, Tru64 was removed (alledgedly). |
| 707 | |
Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 708 | Tools/Demos |
| 709 | ----------- |
| 710 | |
Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame^] | 711 | |
Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 712 | **(For information about older versions, consult the HISTORY file.)** |