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Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +00007What's new in Python 3.0b2?
8===========================
9
10*Release date: XX-XXX-2008*
11
12Core and Builtins
13-----------------
14
Mark Dickinson65fe25e2008-07-16 11:30:51 +000015- Issue #3008: the float type has a new instance method 'float.hex'
16 and a new class method 'float.fromhex' to convert floating-point
17 numbers to and from hexadecimal strings, respectively.
18
Eric Smithd68af8f2008-07-16 00:15:35 +000019- Issue #3083: Add alternate (#) formatting for bin, oct, hex output
20 for str.format(). This adds the prefix 0b, 0o, or 0x, respectively.
21
Amaury Forgeot d'Arca4db6862008-07-04 21:26:43 +000022- Issue #3280: like chr(), the "%c" format now accepts unicode code points
23 beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On
24 "narrow Unicode" builds, the result is a string of 2 code units, forming a
25 UTF-16 surrogate pair.
26
Georg Brandld52429f2008-07-04 15:55:02 +000027- Issue #3282: str.isprintable() should return False for undefined
28 Unicode characters.
29
Martin v. Löwis029656f2008-06-30 04:06:08 +000030- Issue #3236: Return small longs from PyLong_FromString.
31
Benjamin Petersone6528212008-07-15 15:32:09 +000032- Exception tracebacks now support exception chaining.
33
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +000034Library
35-------
36
Thomas Heller15383a02008-07-15 19:46:52 +000037- Issue #3313: Fixed a crash when a failed dlopen() call does not set
38 a valid dlerror() message.
39
Thomas Heller0261e1e2008-07-15 17:25:07 +000040- Issue #3258: Fixed a crash when a ctypes POINTER type to an
41 incomplete structure was created.
42
Georg Brandl1abcbf82008-07-01 19:28:43 +000043- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the
44 argument now must be a bytes object in any case.
45
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +000046- Issue #3145: help("modules whatever") failed when trying to load the source
47 code of every single module of the standard library, including invalid files
48 used in the test suite.
49
Benjamin Peterson801844d2008-07-14 14:32:15 +000050- All the u* variant functions and methods in gettext have been renamed to their
51 none u* siblings.
52
Benjamin Petersone6528212008-07-15 15:32:09 +000053- The traceback module has been expanded to handle chained exceptions.
54
Amaury Forgeot d'Arc612f61f2008-07-02 23:02:21 +000055C API
56-----
57
58- Issue #3247: the function Py_FindMethod was removed. Modern types should
59 use the tp_methods slot instead.
60
Benjamin Petersonde9c8692008-07-01 18:23:09 +000061Tools/Demos
62-----------
63
Georg Brandl336341f2008-07-01 20:21:28 +000064- The Mac/Demos directory has been removed.
Benjamin Petersonde9c8692008-07-01 18:23:09 +000065
Georg Brandl336341f2008-07-01 20:21:28 +000066- All of the Mac scripts have been removed (including BuildApplet.py).
Benjamin Petersonde9c8692008-07-01 18:23:09 +000067
68
Brett Cannon0d71ee72008-05-08 18:13:40 +000069What's new in Python 3.0b1?
70===========================
71
Barry Warsawc1e689e2008-06-19 00:35:43 +000072*Release date: 18-Jun-2008*
Brett Cannon0d71ee72008-05-08 18:13:40 +000073
74Core and Builtins
75-----------------
76
Brett Cannondb734912008-06-27 00:52:15 +000077- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
78 argument being anything other than a dict or None. Also fixed a bug in error
79 handling when 'message' and 'category' were both set to None, triggering a
80 bus error.
81
Amaury Forgeot d'Arcc856c7a2008-06-16 19:50:09 +000082- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
83 holds the last (strong) reference to its referent.
84
Georg Brandl559e5d72008-06-11 18:37:52 +000085- Issue #2630: implement PEP 3138. repr() now returns printable
86 Unicode characters unescaped, to get an ASCII-only representation
87 of an object use ascii().
88
Amaury Forgeot d'Arcf1ca0b12008-06-11 17:40:47 +000089- Issue #1342: On windows, Python could not start when installed in a
90 directory with non-ascii characters.
91
Martin v. Löwis1a214512008-06-11 05:26:20 +000092- Implement PEP 3121: new module initialization and finalization API.
93
Georg Brandle1b5ac62008-06-04 13:06:58 +000094- Removed the already-defunct ``-t`` option.
95
Amaury Forgeot d'Arc74c71f52008-05-26 21:41:42 +000096- Issue #2957: Corrected a ValueError "recursion limit exceeded", when
97 unmarshalling many code objects, which happens when importing a
98 large .pyc file (~1000 functions).
99
Georg Brandl52b92cc2008-05-25 09:43:03 +0000100- Issue #2963: fix merging oversight that disabled method cache for
101 all types.
Georg Brandl1bcf35a2008-05-25 09:32:09 +0000102
Georg Brandlc9b09532008-05-25 09:24:38 +0000103- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
104
Georg Brandl52b92cc2008-05-25 09:43:03 +0000105- Issue #2895: Don't crash when given bytes objects as keyword names.
Georg Brandld8b690f2008-05-16 17:28:50 +0000106
Georg Brandl52b92cc2008-05-25 09:43:03 +0000107- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
108 code now allows any unicode string and returns a utf-8 encoded
109 buffer, just like the "s#" code already does. The "z" code was
110 corrected as well.
Amaury Forgeot d'Arc07404592008-05-12 13:19:07 +0000111
Georg Brandl52b92cc2008-05-25 09:43:03 +0000112- Issue #2863: generators now have a ``gen.__name__`` attribute that
113 equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
114 ``func.func_code.co_name``. The repr() of a generator now also
115 contains this name.
Alexandre Vassalottie9f305f2008-05-16 04:39:54 +0000116
117- Issue #2831: enumerate() now has a ``start`` argument.
118
Georg Brandl52b92cc2008-05-25 09:43:03 +0000119- Issue #2801: fix bug in the float.is_integer method where a
120 ValueError was sometimes incorrectly raised.
Mark Dickinsonc4352b02008-05-09 13:55:01 +0000121
Georg Brandl52b92cc2008-05-25 09:43:03 +0000122- The ``--with-toolbox-glue`` option (and the associated
123 pymactoolbox.h) have been removed.
Benjamin Peterson79629ab2008-05-14 21:07:12 +0000124
Georg Brandl52b92cc2008-05-25 09:43:03 +0000125- Issue #2196: hasattr() now lets exceptions which do not inherit
126 Exception (KeyboardInterrupt, and SystemExit) propagate instead of
127 ignoring them.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000128
Benjamin Petersoneec3d712008-06-11 15:59:43 +0000129- #3021 Exception reraising sematics have been significantly improved. However,
130 f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
131 code anymore.
132
Benjamin Peterson4f92ca42008-06-11 20:21:57 +0000133- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been
134 removed.
135
Brett Cannon0d71ee72008-05-08 18:13:40 +0000136Extension Modules
137-----------------
138
Georg Brandl38feaf02008-05-25 07:45:51 +0000139- Renamed ``_winreg`` module to ``winreg``.
140
Georg Brandl52b92cc2008-05-25 09:43:03 +0000141- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
142 platform.
Alexandre Vassalottibee32532008-05-16 18:15:12 +0000143
144- Support for Windows 9x has been removed from the winsound module.
145
Georg Brandl52b92cc2008-05-25 09:43:03 +0000146- Issue #2870: cmathmodule.c compile error.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000147
Brett Cannon0d71ee72008-05-08 18:13:40 +0000148Library
149-------
150
Amaury Forgeot d'Arccb0d2d72008-06-18 22:19:22 +0000151- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows.
152
Jeremy Hylton1afc1692008-06-18 20:49:58 +0000153- a new ``urllib`` package was created. It consists of code from
154 ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old
155 modules have all been removed. The new package has five submodules:
156 ``urllib.parse``, ``urllib.request``, ``urllib.response``,
157 ``urllib.error``, and ``urllib.robotparser``. The
158 ``urllib.request.urlopen()`` function uses the url opener from
159 ``urllib2``. (Note that the unittests have not been renamed for the
160 beta, but they will be renamed in the future.)
161
Benjamin Petersona0c0a4a2008-06-12 22:15:50 +0000162- rfc822 has been removed in favor of the email package.
163
Benjamin Peterson425ea7f2008-06-12 14:11:35 +0000164- mimetools has been removed in favor of the email package.
Benjamin Peterson23c51a22008-06-12 14:06:57 +0000165
Barry Warsawf5019422008-06-12 02:42:00 +0000166- Patch #2849: Remove use of rfc822 module from standard library.
167
Alexandre Vassalotti794652d2008-06-11 22:58:36 +0000168- Added C optimized implementation of io.StringIO.
169
Alexandre Vassalottica2d6102008-06-12 18:26:05 +0000170- The ``pickle`` module is now automatically use an optimized C
171 implementation of Pickler and Unpickler when available. The
172 ``cPickle`` module is no longer needed.
173
Georg Brandl877b10a2008-06-01 21:25:55 +0000174- Removed the ``htmllib`` and ``sgmllib`` modules.
175
Georg Brandl61013952008-05-28 15:56:30 +0000176- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have
177 been removed from ``http.cookies``.
178
Brett Cannona23810f2008-05-26 19:04:21 +0000179- The ``commands`` module has been removed. Its getoutput() and
180 getstatusoutput() functions have been moved to the ``subprocess`` module.
181
Georg Brandl3d5c4252008-05-26 18:03:26 +0000182- The ``http`` package was created; it contains the old ``httplib``
183 as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib``
184 as ``http.cookiejar``, and the content of the three ``HTTPServer``
185 modules as ``http.server``.
186
Georg Brandl38eceaa2008-05-26 11:14:17 +0000187- The ``xmlrpc`` package was created; it contains the old
188 ``xmlrpclib`` module as ``xmlrpc.client`` and the content of
189 the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules
190 as ``xmlrpc.server``.
191
192- The ``dbm`` package was created, containing the old modules
193 ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having
194 ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``),
195 ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``)
196 as submodules.
197
Georg Brandl52b92cc2008-05-25 09:43:03 +0000198- The ``repr`` module has been renamed to ``reprlib``.
Alexandre Vassalotti1f2ba4b2008-05-16 07:12:44 +0000199
Georg Brandl52b92cc2008-05-25 09:43:03 +0000200- The ``statvfs`` module has been removed.
Brett Cannonacbb7862008-05-16 00:42:57 +0000201
Georg Brandl52b92cc2008-05-25 09:43:03 +0000202- Issue #1713041: fix pprint's handling of maximum depth.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000203
Georg Brandl52b92cc2008-05-25 09:43:03 +0000204- Issue #2250: Exceptions raised during evaluation of names in
205 rlcompleter's ``Completer.complete()`` method are now caught and
206 ignored.
Alexandre Vassalotti8ae3e052008-05-16 00:41:41 +0000207
Georg Brandl52b92cc2008-05-25 09:43:03 +0000208- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
209 ``TextWrapper`` class.
Alexandre Vassalotti1d1eaa42008-05-14 22:59:42 +0000210
Alexandre Vassalotti6461e102008-05-15 22:09:29 +0000211- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
212 large to fit in a C long. ldexp(x, n) now returns a zero (with
213 suitable sign) if n is large and negative; previously, it raised
214 OverflowError.
215
Georg Brandl52b92cc2008-05-25 09:43:03 +0000216- The ``ConfigParser`` module has been renamed to ``configparser``.
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000217
Georg Brandl52b92cc2008-05-25 09:43:03 +0000218- Issue #2865: webbrowser.open() works again in a KDE environment.
Amaury Forgeot d'Arc2b2b44d2008-05-12 14:41:00 +0000219
Georg Brandl52b92cc2008-05-25 09:43:03 +0000220- The ``multifile`` module has been removed.
Brett Cannond3343cb2008-05-12 03:18:21 +0000221
Georg Brandl52b92cc2008-05-25 09:43:03 +0000222- The ``SocketServer`` module has been renamed to ``socketserver``.
Alexandre Vassalottice261952008-05-12 02:31:37 +0000223
Georg Brandl52b92cc2008-05-25 09:43:03 +0000224- Fixed the ``__all__`` setting on ``collections`` to include
225 ``UserList`` and ``UserString``.
Brett Cannon23a4a7b2008-05-12 00:56:28 +0000226
Brett Cannoncf3520c2008-05-11 22:47:58 +0000227- The sre module has been removed.
228
Alexandre Vassalottif260e442008-05-11 19:59:59 +0000229- The Queue module has been renamed to queue.
230
Alexandre Vassalottif7fa63d2008-05-11 08:55:36 +0000231- The copy_reg module has been renamed to copyreg.
232
Brett Cannond8b61ee2008-05-11 03:00:26 +0000233- The mhlib module has been removed.
234
Brett Cannonbd474422008-05-10 22:42:14 +0000235- The ihooks module has been removed.
236
Brett Cannonb59a2bd2008-05-10 22:03:16 +0000237- The fpformat module has been removed.
238
Brett Cannonf4fd9932008-05-10 21:11:46 +0000239- The dircache module has been removed.
240
Brett Cannond175b4c2008-05-10 03:19:54 +0000241- The Canvas module has been removed.
242
Mark Dickinsonb27406c2008-05-09 13:42:33 +0000243- The Decimal module gained the magic methods __round__, __ceil__,
244 __floor__ and __trunc__, to give support for round, math.ceil,
245 math.floor and math.trunc.
246
Brett Cannon900ee3a2008-05-08 20:31:11 +0000247- The user module has been removed.
248
Brett Cannon34afe872008-05-08 20:31:44 +0000249- The mutex module has been removed.
250
Brett Cannon0d71ee72008-05-08 18:13:40 +0000251- The imputil module has been removed.
252
Georg Brandl52b92cc2008-05-25 09:43:03 +0000253- os.path.walk has been removed in favor of os.walk.
Benjamin Petersond71ca412008-05-08 23:44:58 +0000254
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000255- pdb gained the "until" command.
256
Georg Brandl52b92cc2008-05-25 09:43:03 +0000257- The test.test_support module has been renamed to test.support.
Benjamin Petersonee8712c2008-05-20 21:35:26 +0000258
Georg Brandlf9926402008-06-13 06:32:25 +0000259- The threading module API was renamed to be PEP 8 complaint.
Benjamin Peterson672b8032008-06-11 19:14:14 +0000260
Georg Brandl294d5a92008-06-01 19:25:32 +0000261Tools/Demos
262-----------
263
264- The bgen tool has been removed.
Benjamin Peterson630c8292008-06-01 18:50:38 +0000265
Brett Cannon0d71ee72008-05-08 18:13:40 +0000266Build
267-----
268
269
Barry Warsaw66079cd2008-04-04 01:36:36 +0000270What's New in Python 3.0a5?
271===========================
272
Barry Warsaw9eab8b02008-05-08 13:05:38 +0000273*Release date: 08-May-2008*
Barry Warsaw66079cd2008-04-04 01:36:36 +0000274
275Core and Builtins
276-----------------
277
Georg Brandl52b92cc2008-05-25 09:43:03 +0000278- Fixed misbehaviour of PyLong_FromSsize_t on systems where
279 sizeof(size_t) > sizeof(long).
Mark Dickinson7ab6be22008-04-15 21:42:42 +0000280
Georg Brandl52b92cc2008-05-25 09:43:03 +0000281- Issue #2221: Corrected a SystemError "error return without exception
282 set", when the code executed by exec() raises an exception, and
283 sys.stdout.flush() also raises an error.
Amaury Forgeot d'Arc7fedbe52008-04-10 21:03:09 +0000284
Georg Brandl52b92cc2008-05-25 09:43:03 +0000285- Bug #2565: The repr() of type objects now calls them 'class', not
286 'type' - whether they are builtin types or not.
Martin v. Löwis250ad612008-04-07 05:43:42 +0000287
Martin v. Löwis790465f2008-04-05 20:41:37 +0000288- The command line processing was converted to pass Unicode strings
289 through as unmodified as possible; as a consequence, the C API
290 related to command line arguments was changed to use wchar_t.
291
Georg Brandl52b92cc2008-05-25 09:43:03 +0000292- All backslashes in raw strings are interpreted literally. This
293 means that '\u' and '\U' escapes are not treated specially.
Benjamin Petersona2f837f2008-04-28 21:05:10 +0000294
Barry Warsaw66079cd2008-04-04 01:36:36 +0000295Extension Modules
296-----------------
297
298Library
299-------
300
Georg Brandl52b92cc2008-05-25 09:43:03 +0000301- ctypes objects now support the PEP3118 buffer interface.
Thomas Hellerb041fda2008-04-30 17:11:46 +0000302
Thomas Hellere106dc32008-04-24 18:39:36 +0000303- Issue #2682: ctypes callback functions now longer contain a cyclic
304 reference to themselves.
305
Georg Brandl52b92cc2008-05-25 09:43:03 +0000306- Issue #2058: Remove the buf attribute and add __slots__ to the
307 TarInfo class in order to reduce tarfile's memory usage.
Lars Gustäbelc2ea8c62008-04-14 10:05:48 +0000308
Martin v. Löwis8efc62c2008-04-10 19:02:25 +0000309- Bug #2606: Avoid calling .sort() on a dict_keys object.
310
Thomas Hellerbff533b2008-04-04 19:53:14 +0000311- The bundled libffi copy is now in sync with the recently released
312 libffi3.0.5 version, apart from some small changes to
313 Modules/_ctypes/libffi/configure.ac.
314
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000315Build
316-----
317
Mark Dickinsonb0e2b4c2008-04-26 20:48:56 +0000318- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
319
Guido van Rossumdc21db32008-04-07 18:37:41 +0000320- "make install" is now an alias for "make altinstall", to prevent
Georg Brandl52b92cc2008-05-25 09:43:03 +0000321 accidentally overwriting a Python 2.x installation. Use "make
322 fullinstall" to force Python 3.0 to be installed as "python".
Guido van Rossumdc21db32008-04-07 18:37:41 +0000323
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000324- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
325 gcc is used as compiler.
Barry Warsaw66079cd2008-04-04 01:36:36 +0000326
Georg Brandl52b92cc2008-05-25 09:43:03 +0000327
Barry Warsawa9d499d2008-03-01 18:38:07 +0000328What's New in Python 3.0a4?
329===========================
330
Barry Warsawbb5cd082008-04-02 23:33:27 +0000331*Release date: 02-Apr-2008*
Barry Warsawa9d499d2008-03-01 18:38:07 +0000332
Martin v. Löwis25931462008-03-17 20:43:42 +0000333Core and Builtins
334-----------------
335
336- Bug #2301: Don't try decoding the source code into the original
337 encoding for syntax errors.
338
Martin v. Löwis92fab752008-03-08 10:40:41 +0000339Extension Modules
340-----------------
341
Neal Norwitz6cf49cf2008-03-24 06:22:57 +0000342- The dl module was removed, use the ctypes module instead.
343
Martin v. Löwis92fab752008-03-08 10:40:41 +0000344- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +0000345
Martin v. Löwis071ef772008-03-08 11:24:24 +0000346Library
347-------
348
Georg Brandl52b92cc2008-05-25 09:43:03 +0000349- The class distutils.commands.build_py.build_py_2to3 can be used as a
350 build_py replacement to automatically run 2to3 on modules that are
351 going to be installed.
Martin v. Löwis73a22f02008-03-22 00:35:10 +0000352
Guido van Rossumf4169812008-03-17 22:56:06 +0000353- A new pickle protocol (protocol 3) is added with explicit support
354 for bytes. This is the default protocol. It intentionally cannot
355 be unpickled by Python 2.x.
356
357- When a pickle written by Python 2.x contains an (8-bit) str
358 instance, this is now decoded to a (Unicode) str instance. The
359 encoding used to do this defaults to ASCII, but can be overridden
360 via two new keyword arguments to the Unpickler class. Previously
361 this would create bytes instances, which is usually wrong: str
362 instances are often used to pickle attribute names etc., and text is
363 more common than binary data anyway.
364
Martin v. Löwis071ef772008-03-08 11:24:24 +0000365- Default to ASCII as the locale.getpreferredencoding, if the POSIX
Georg Brandl52b92cc2008-05-25 09:43:03 +0000366 system doesn't support CODESET and LANG isn't set or doesn't allow
367 deduction of an encoding.
Martin v. Löwis071ef772008-03-08 11:24:24 +0000368
Georg Brandl52b92cc2008-05-25 09:43:03 +0000369- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
370 value.
Gregory P. Smith425136b2008-03-17 20:45:21 +0000371
Georg Brandl52b92cc2008-05-25 09:43:03 +0000372- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
373 has been renamed tokenize and now works with bytes rather than
374 strings. A new detect_encoding function has been added for
375 determining source file encoding according to PEP-0263. Token
376 sequences returned by tokenize always start with an ENCODING token
377 which specifies the encoding used to decode the file. This token is
378 used to encode the output of untokenize back to bytes.
379
Barry Warsawa9d499d2008-03-01 18:38:07 +0000380
Christian Heimesbc873412007-12-08 22:11:32 +0000381What's New in Python 3.0a3?
382===========================
383
Barry Warsaw659fc422008-03-01 17:45:23 +0000384*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +0000385
386Core and Builtins
387-----------------
388
Georg Brandl52b92cc2008-05-25 09:43:03 +0000389- Issue #2282: io.TextIOWrapper was not overriding seekable() from
390 io.IOBase.
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +0000391
Georg Brandl52b92cc2008-05-25 09:43:03 +0000392- Issue #2115: Important speedup in setting __slot__ attributes. Also
393 prevent a possible crash: an Abstract Base Class would try to access
394 a slot on a registered virtual subclass.
Christian Heimesa156e092008-02-16 07:38:31 +0000395
Georg Brandl52b92cc2008-05-25 09:43:03 +0000396- Fixed repr() and str() of complex numbers with infinity or nan as
397 real or imaginary part.
Christian Heimesa156e092008-02-16 07:38:31 +0000398
Georg Brandl52b92cc2008-05-25 09:43:03 +0000399- Clear all free list during a gc.collect() of the highest generation
400 in order to allow pymalloc to free more arenas. Python may give back
401 memory to the OS earlier.
Christian Heimesa156e092008-02-16 07:38:31 +0000402
Georg Brandl52b92cc2008-05-25 09:43:03 +0000403- Issue #2045: Fix an infinite recursion triggered when printing a
404 subclass of collections.defaultdict, if its default_factory is set
405 to a bound method.
Christian Heimesa156e092008-02-16 07:38:31 +0000406
407- Fixed a minor memory leak in dictobject.c. The content of the free
408 list was not freed on interpreter shutdown.
409
Georg Brandl52b92cc2008-05-25 09:43:03 +0000410- Limit free list of method and builtin function objects to 256
411 entries each.
Christian Heimesa156e092008-02-16 07:38:31 +0000412
Georg Brandl52b92cc2008-05-25 09:43:03 +0000413- Patch #1953: Added ``sys._compact_freelists()`` and the C API
414 functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
Christian Heimesa156e092008-02-16 07:38:31 +0000415 to compact the internal free lists of pre-allocted ints and floats.
416
417- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
Georg Brandl52b92cc2008-05-25 09:43:03 +0000418 Python expected the return type int but the fork familie returns
419 pi_t.
Christian Heimesa156e092008-02-16 07:38:31 +0000420
Georg Brandl52b92cc2008-05-25 09:43:03 +0000421- Issue #1678380: Fix a bug that identifies 0j and -0j when they
422 appear in the same code unit.
Christian Heimesa156e092008-02-16 07:38:31 +0000423
Georg Brandl52b92cc2008-05-25 09:43:03 +0000424- Issue #2025: Added tuple.count() and tuple.index() methods to comply
425 with the collections.Sequence API.
Raymond Hettinger65baa342008-02-07 00:41:02 +0000426
Georg Brandl52b92cc2008-05-25 09:43:03 +0000427- Fixed multiple reinitialization of the Python interpreter. The small
428 int list in longobject.c has caused a seg fault during the third
429 finalization.
Christian Heimesdfc12ed2008-01-31 15:16:38 +0000430
Georg Brandl52b92cc2008-05-25 09:43:03 +0000431- Issue #1973: bytes.fromhex('') raised SystemError.
Christian Heimesc04dac02008-01-30 11:27:57 +0000432
Georg Brandl52b92cc2008-05-25 09:43:03 +0000433- Issue #1771: remove cmp parameter from sorted() and list.sort().
Raymond Hettinger70b64fc2008-01-30 20:15:17 +0000434
Georg Brandl52b92cc2008-05-25 09:43:03 +0000435- Issue #1969: split and rsplit in bytearray are inconsistent.
Christian Heimes7b876152008-01-30 09:51:48 +0000436
Georg Brandl52b92cc2008-05-25 09:43:03 +0000437- map() no longer accepts None for the first argument. Use zip()
438 instead.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000439
Facundo Batista2336bdd2008-01-19 19:12:01 +0000440- Issue #1769: Now int("- 1") is not allowed any more.
441
Georg Brandl52b92cc2008-05-25 09:43:03 +0000442- Object/longobject.c: long(float('nan')) raises an OverflowError
443 instead of returning 0.
Christian Heimes386cd1e2008-01-15 02:01:20 +0000444
Georg Brandl52b92cc2008-05-25 09:43:03 +0000445- Issue #1762972: __file__ points to the source file instead of the
446 pyc/pyo file if the py file exists.
Christian Heimes3b06e532008-01-07 20:12:44 +0000447
Guido van Rossumab078dd2008-01-06 00:09:11 +0000448- Issue #1393: object_richcompare() returns NotImplemented instead of
449 False if the objects aren't equal, to give the other side a chance.
450
Guido van Rossume239b002008-01-06 00:44:20 +0000451- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000452
Georg Brandl52b92cc2008-05-25 09:43:03 +0000453- Improve some exception messages when Windows fails to load an
454 extension module. Now we get for example '%1 is not a valid Win32
455 application' instead of 'error code 193'. Also use Unicode strings
456 to deal with non-English locales.
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000457
Georg Brandl52b92cc2008-05-25 09:43:03 +0000458- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
459 Python C API has gained a new type *PyInstanceMethod_Type* and the
460 functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
461 and *PyInstanceMethod_Function(im)*.
Christian Heimesa3534a62007-12-11 19:56:40 +0000462
Georg Brandl52b92cc2008-05-25 09:43:03 +0000463- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
464 from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
465 are now enough to print the corresponding list of objects considered
466 by the garbage collector.
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000467
Georg Brandl52b92cc2008-05-25 09:43:03 +0000468- Issue #1573: Improper use of the keyword-only syntax makes the
469 parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000470
Georg Brandl52b92cc2008-05-25 09:43:03 +0000471- Issue #1564: The set implementation should special-case PyUnicode
472 instead of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000473
Guido van Rossumea6775b2008-02-21 20:16:31 +0000474- Patch #1031213: Decode source line in SyntaxErrors back to its
475 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000476
Christian Heimes09aaa882008-02-23 15:01:06 +0000477- inspect.getsource() includes the decorators again.
478
Guido van Rossumea6775b2008-02-21 20:16:31 +0000479- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
480 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000481
Georg Brandl52b92cc2008-05-25 09:43:03 +0000482- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
483 the first chunk fed to the decoder started with a BOM, but was
484 longer than 3 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000485
Christian Heimesbc873412007-12-08 22:11:32 +0000486Extension Modules
487-----------------
488
Georg Brandl52b92cc2008-05-25 09:43:03 +0000489- Code for itertools ifilter(), imap(), and izip() moved to bultins
490 and renamed to filter(), map(), and zip(). Also, renamed
491 izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000492
Georg Brandl52b92cc2008-05-25 09:43:03 +0000493- Issue #1762972: Readded the reload() function as imp.reload().
Guido van Rossumea6775b2008-02-21 20:16:31 +0000494
Georg Brandl52b92cc2008-05-25 09:43:03 +0000495- Bug #2111: mmap segfaults when trying to write a block opened with
496 PROT_READ.
Christian Heimesa156e092008-02-16 07:38:31 +0000497
Georg Brandl52b92cc2008-05-25 09:43:03 +0000498- Issue #2063: correct order of utime and stime in os.times() result
499 on Windows.
Christian Heimes7131fd92008-02-19 14:21:46 +0000500
Christian Heimesbc873412007-12-08 22:11:32 +0000501Library
502-------
503
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000504- Weakref dictionaries now inherit from MutableMapping.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000505
Georg Brandl52b92cc2008-05-25 09:43:03 +0000506- Created new UserDict class in collections module. This one inherits
507 from and complies with the MutableMapping ABC. Also, moved
508 UserString and UserList to the collections module. The
509 MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000510
Guido van Rossumea6775b2008-02-21 20:16:31 +0000511- Removed UserDict.DictMixin. Replaced all its uses with
512 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000513
Guido van Rossume239b002008-01-06 00:44:20 +0000514- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000515
Guido van Rossume239b002008-01-06 00:44:20 +0000516- Issue #1585: IDLE uses non-existent xrange() function.
517
518- Issue #1578: Problems in win_getpass.
519
Georg Brandl52d168a2008-01-07 18:10:24 +0000520Build
521-----
522
Georg Brandl52b92cc2008-05-25 09:43:03 +0000523- Renamed --enable-unicode configure flag to --with-wide-unicode,
524 since Unicode strings can't be disabled anymore.
Georg Brandl52d168a2008-01-07 18:10:24 +0000525
Guido van Rossume239b002008-01-06 00:44:20 +0000526C API
527-----
528
529- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
530 Py_TYPE and Py_REFCNT.
531
Georg Brandl52b92cc2008-05-25 09:43:03 +0000532- New API PyImport_ImportModuleNoBlock(), works like
533 PyImport_ImportModule() but won't block on the import lock
534 (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000535
Christian Heimesbc873412007-12-08 22:11:32 +0000536
Fred Drake0e474a82007-10-11 18:01:43 +0000537What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000538===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000539
Guido van Rossum99533a92007-12-06 05:07:41 +0000540*Release date: 07-Dec-2007*
541
542(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000543
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000544Core and Builtins
545-----------------
546
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000547- str8 now has the same construction signature as bytes.
548
Georg Brandl52b92cc2008-05-25 09:43:03 +0000549- Comparisons between str and str8 now return False/True for ==/!=.
550 sqlite3 returns str8 when recreating on object from it's __conform__
551 value. The struct module returns str8 for all string-related
552 formats. This was true before this change, but becomes more
553 apparent thanks to string comparisons always being False.
Brett Cannon40430012007-10-22 20:24:51 +0000554
Georg Brandl52b92cc2008-05-25 09:43:03 +0000555- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
556 buffer, encoding, newline)`.
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000557
558- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
559
560- Changed `__file__` and `co_filename` to unicode. The path names are decoded
561 with `Py_FileSystemDefaultEncoding` and a new API method
562 `PyUnicode_DecodeFSDefault(char*)` was added.
563
Georg Brandl52b92cc2008-05-25 09:43:03 +0000564- io.open() and _fileio.FileIO have grown a new argument closefd. A
565 false value disables the closing of the file descriptor.
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000566
Georg Brandl52b92cc2008-05-25 09:43:03 +0000567- Added a new option -b to issues warnings (-bb for errors) about
568 certain operations between bytes/buffer and str like str(b'') and
569 comparison.
Guido van Rossum98297ee2007-11-06 21:34:58 +0000570
Georg Brandl52b92cc2008-05-25 09:43:03 +0000571- The standards streams sys.stdin, stdout and stderr may be None when
572 the when the C runtime library returns an invalid file descriptor
573 for the streams (fileno(stdin) < 0). For now this happens only for
574 Windows GUI apps and scripts started with `pythonw.exe`.
Christian Heimes58cb1b82007-11-13 02:19:40 +0000575
Christian Heimesbce52be2007-11-17 19:08:41 +0000576- Added PCbuild9 directory for VS 2008.
577
Georg Brandl52b92cc2008-05-25 09:43:03 +0000578- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
579 work around a name clash with VS 2008 on Windows.
Christian Heimesbce52be2007-11-17 19:08:41 +0000580
Georg Brandl52b92cc2008-05-25 09:43:03 +0000581- Unbound methods are gone for good. ClassObject.method returns an
582 ordinary function object, instance.method still returns a bound
583 method object. The API of bound methods is cleaned up, too. The
584 im_class attribute is removed and im_func + im_self are renamed to
585 __func__ and __self__. The factory PyMethod_New takes only func and
586 instance as argument.
Christian Heimesff737952007-11-27 10:40:20 +0000587
Georg Brandl52b92cc2008-05-25 09:43:03 +0000588- intobject.h is no longer included by Python.h. The remains were
589 moved to longobject.h. It still exists to define several aliases
590 from PyInt_ to PyLong_ functions.
Christian Heimesf78b1c62007-12-02 16:52:32 +0000591
Christian Heimesa37d4c62007-12-04 23:02:19 +0000592- Removed sys.maxint, use sys.maxsize instead.
593
Fred Drake0e474a82007-10-11 18:01:43 +0000594Extension Modules
595-----------------
596
597- The `hotshot` profiler has been removed; use `cProfile` instead.
598
Brett Cannone9fd2312007-10-12 19:18:19 +0000599Library
600-------
601
Georg Brandl52b92cc2008-05-25 09:43:03 +0000602- When loading an external file using testfile(), the passed-in
603 encoding argument was being ignored if __loader__ is defined and
604 forcing the source to be UTF-8.
Brett Cannone9fd2312007-10-12 19:18:19 +0000605
Georg Brandl52b92cc2008-05-25 09:43:03 +0000606- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
607 been removed in favor of the tempfile module.
Guido van Rossum687b9c02007-10-25 23:18:51 +0000608
Christian Heimesc9543e42007-11-28 08:28:28 +0000609- Removed the 'new' module.
610
Georg Brandl52b92cc2008-05-25 09:43:03 +0000611- Removed all types from the 'types' module that are easily accessable
612 through builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +0000613
Georg Brandl52d168a2008-01-07 18:10:24 +0000614
Guido van Rossum4405cf32007-08-30 17:16:55 +0000615What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +0000616==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +0000617
Guido van Rossum4405cf32007-08-30 17:16:55 +0000618*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +0000619
620Core and Builtins
621-----------------
622
Martin v. Löwis47383402007-08-15 07:32:56 +0000623- PEP 3131: Support non-ASCII identifiers.
624
Martin v. Löwis447d33e2007-07-29 18:10:01 +0000625- PEP 3120: Change default encoding to UTF-8.
626
Martin v. Löwis9f2e3462007-07-21 17:22:18 +0000627- PEP 3123: Use proper C inheritance for PyObject.
628
Guido van Rossumcd16bf62007-06-13 18:07:49 +0000629- Removed the __oct__ and __hex__ special methods and added a bin()
630 builtin function.
631
Georg Brandl52b92cc2008-05-25 09:43:03 +0000632- PEP 3127: octal literals now start with "0o". Old-style octal
633 literals are invalid. There are binary literals with a prefix of
634 "0b". This also affects int(x, 0).
Guido van Rossumcd16bf62007-06-13 18:07:49 +0000635
Guido van Rossume7ba4952007-06-06 23:52:48 +0000636- None, True, False are now keywords.
637
Guido van Rossum29478ef2007-05-29 00:39:44 +0000638- PEP 3119: isinstance() and issubclass() can be overridden.
639
Guido van Rossumebe3e162007-05-17 18:20:34 +0000640- Remove BaseException.message.
641
Guido van Rossum1bc535d2007-05-15 18:46:22 +0000642- Remove tuple parameter unpacking (PEP 3113).
643
Georg Brandl52b92cc2008-05-25 09:43:03 +0000644- Remove the f_restricted attribute from frames. This naturally leads
645 to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
Guido van Rossuma8add0e2007-05-14 22:03:55 +0000646
Georg Brandl52b92cc2008-05-25 09:43:03 +0000647- PEP 3132 was accepted. That means that you can do ``a, *b =
648 range(5)`` to assign 0 to a and [1, 2, 3, 4] to b.
Guido van Rossum0368b722007-05-11 16:50:42 +0000649
Georg Brandl52b92cc2008-05-25 09:43:03 +0000650- range() now returns an iterator rather than a list. Floats are not
651 allowed. xrange() is no longer defined.
Guido van Rossum805365e2007-05-07 22:24:25 +0000652
Nick Coghlan650f0d02007-04-15 12:05:43 +0000653- Patch #1660500: hide iteration variable in list comps, add set comps
Georg Brandl52b92cc2008-05-25 09:43:03 +0000654 and use common code to handle compilation of iterative expressions.
Nick Coghlan650f0d02007-04-15 12:05:43 +0000655
Guido van Rossume27dc722007-03-27 22:37:34 +0000656- By default, != returns the opposite of ==, unless the latter returns
657 NotImplemented.
658
Georg Brandl52b92cc2008-05-25 09:43:03 +0000659- Patch #1680961: sys.exitfunc has been removed and replaced with a
660 private C-level API.
Collin Winter670e6922007-03-21 02:57:17 +0000661
Georg Brandl801dd732007-03-18 20:18:31 +0000662- PEP 3115: new metaclasses: the metaclass is now specified as a
Georg Brandl52b92cc2008-05-25 09:43:03 +0000663 keyword arg in the class statement, which can now use the full
664 syntax of a parameter list. Also, the metaclass can implement a
665 __prepare__ function which will be called to create the dictionary
666 for the new class namespace.
Georg Brandl801dd732007-03-18 20:18:31 +0000667
Georg Brandl428f0642007-03-18 18:35:15 +0000668- The long-deprecated argument "pend" of PyFloat_FromString() has been
669 removed.
670
Georg Brandle32b4222007-03-10 22:13:27 +0000671- The dir() function has been extended to call the __dir__() method on
Georg Brandl52b92cc2008-05-25 09:43:03 +0000672 its argument, if it exists. If not, it will work like before. This
673 allows customizing the output of dir() in the presence of a
674 __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +0000675
Neal Norwitz8dfc4a92007-08-11 06:39:53 +0000676- Removed support for __members__ and __methods__.
677
Georg Brandle32b4222007-03-10 22:13:27 +0000678- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +0000679
Georg Brandle32b4222007-03-10 22:13:27 +0000680- input() became raw_input(): the name input() now implements the
Georg Brandl52b92cc2008-05-25 09:43:03 +0000681 functionality formerly known as raw_input(); the name raw_input() is
682 no longer defined.
Guido van Rossum0240b922007-02-26 21:23:50 +0000683
Georg Brandl52b92cc2008-05-25 09:43:03 +0000684- Classes listed in an 'except' clause must inherit from
685 BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +0000686
Guido van Rossumcc2b0162007-02-11 06:12:03 +0000687- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +0000688 and .keys(), .items(), .values() return dict views, which behave
689 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +0000690
Guido van Rossum8b545362007-02-09 23:52:14 +0000691- PEP 3105: print is now a function. Also (not in the PEP) the
Georg Brandl52b92cc2008-05-25 09:43:03 +0000692 'softspace' attribute of files is now gone (since print() doesn't
693 use it). A side effect of this change is that you can get
694 incomplete output lines in interactive sessions:
Guido van Rossum8b545362007-02-09 23:52:14 +0000695
696 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +0000697 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +0000698
699 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +0000700
Brett Cannon398db8b2007-01-29 23:44:37 +0000701- PEP 3102: keyword-only arguments.
702
Georg Brandl52b92cc2008-05-25 09:43:03 +0000703- Int/Long unification is complete. The 'long' built-in type and
704 literals with trailing 'L' or 'l' have been removed. Performance
705 may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +0000706
707- 'except E, V' must now be spelled as 'except E as V' and deletes V
708 at the end of the except clause; V must be a simple name.
709
Neal Norwitzc1505362006-12-28 06:47:50 +0000710- Added function annotations per PEP 3107.
711
Georg Brandl52b92cc2008-05-25 09:43:03 +0000712- Added nonlocal declaration from PEP 3104:
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +0000713
714 >>> def f(x):
715 ... def inc():
716 ... nonlocal x
717 ... x += 1
718 ... return x
719 ... return inc
720 ...
721 >>> inc = f(0)
722 >>> inc()
723 1
724 >>> inc()
725 2
726
Georg Brandl66a796e2006-12-19 20:50:34 +0000727- Moved intern() to sys.intern().
728
729- exec is now a function.
730
731- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +0000732
Neal Norwitz4886cc32006-08-21 17:06:07 +0000733- Classic classes are a thing of the past. All classes are new style.
734
735- Exceptions *must* derive from BaseException.
736
737- Integer division always returns a float. The -Q option is no more.
738 All the following are gone:
739 * PyNumber_Divide and PyNumber_InPlaceDivide
740 * __div__, __rdiv__, and __idiv__
741 * nb_divide, nb_inplace_divide
742 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
743 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
744 if we want to re-use __div__ and friends. If we do, it will make
745 it harder to write code for both 2.x and 3.x.)
746
747- 'as' and 'with' are keywords.
748
749- Absolute import is the default behavior for 'import foo' etc.
750
Georg Brandl52b92cc2008-05-25 09:43:03 +0000751- Removed support for syntax: backticks (ie, `x`), <>.
Neal Norwitz378b2c92006-08-29 07:57:22 +0000752
Georg Brandl52b92cc2008-05-25 09:43:03 +0000753- Removed these Python builtins: apply(), callable(), coerce(),
754 execfile(), file(), reduce(), reload().
Neal Norwitz4886cc32006-08-21 17:06:07 +0000755
Georg Brandl52b92cc2008-05-25 09:43:03 +0000756- Removed these Python methods: {}.has_key.
Neal Norwitz378b2c92006-08-29 07:57:22 +0000757
Georg Brandl52b92cc2008-05-25 09:43:03 +0000758- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000759
760- Remove C API support for restricted execution.
761
Guido van Rossumcf1be882007-08-30 22:07:17 +0000762- zip(), map() and filter() now return iterators, behaving like their
Georg Brandl52b92cc2008-05-25 09:43:03 +0000763 itertools counterparts. This also affect map()'s behavior on
Guido van Rossumcf1be882007-08-30 22:07:17 +0000764 sequences of unequal length -- it now stops after the shortest one
765 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000766
Georg Brandl52b92cc2008-05-25 09:43:03 +0000767- Additions: set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000768
769- Added class decorators per PEP 3129.
770
771
772Extension Modules
773-----------------
774
Georg Brandl52b92cc2008-05-25 09:43:03 +0000775- Removed the imageop module. Obsolete long with its unit tests
776 becoming useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000777
Georg Brandl52b92cc2008-05-25 09:43:03 +0000778- Removed these attributes from the operator module: div, idiv,
779 __div__, __idiv__, isCallable, sequenceIncludes.
780
781- Removed these attributes from the sys module: exc_clear(), exc_type,
782 exc_value, exc_traceback.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000783
784
785Library
786-------
787
Georg Brandl52b92cc2008-05-25 09:43:03 +0000788- Removed the compiler package. Use of the _ast module and (an
789 eventual) AST -> bytecode mechanism.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000790
Georg Brandl52b92cc2008-05-25 09:43:03 +0000791- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
792 linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
793 stringold, strop, sunaudiodev, timing, xmllib.
Guido van Rossum33d26892007-08-05 15:29:28 +0000794
Georg Brandl52b92cc2008-05-25 09:43:03 +0000795- Moved the toaiff module to Tools/Demos.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000796
Georg Brandl52b92cc2008-05-25 09:43:03 +0000797- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
798 DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
799 IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000800
Georg Brandl52b92cc2008-05-25 09:43:03 +0000801- Removed obsolete functions: commands.getstatus(), os.popen*().
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000802
Georg Brandl52b92cc2008-05-25 09:43:03 +0000803- Removed functions in the string module that are also string methods;
Martin v. Löwis967f1e32007-08-14 09:23:10 +0000804 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000805
Georg Brandl52b92cc2008-05-25 09:43:03 +0000806- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000807
Georg Brandl52b92cc2008-05-25 09:43:03 +0000808- Removed xmlrpclib.SlowParser. It was based on xmllib.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000809
810- Patch #1680961: atexit has been reimplemented in C.
811
Walter Dörwald41980ca2007-08-16 21:55:45 +0000812- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
813
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000814Build
815-----
816
817C API
818-----
819
Georg Brandl52b92cc2008-05-25 09:43:03 +0000820- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000821
Georg Brandl52b92cc2008-05-25 09:43:03 +0000822- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
823 PyMember_Get, PyMember_Set.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000824
Georg Brandl52b92cc2008-05-25 09:43:03 +0000825- Removed these C slots/fields: nb_divide, nb_inplace_divide.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000826
Georg Brandl52b92cc2008-05-25 09:43:03 +0000827- Removed these macros: staticforward, statichere, PyArg_GetInt,
828 PyArg_NoArgs, _PyObject_Del.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000829
Georg Brandl52b92cc2008-05-25 09:43:03 +0000830- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
831 intintobjargproc, getreadbufferproc, getwritebufferproc,
832 getsegcountproc, getcharbufferproc, memberlist.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000833
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000834Tests
835-----
836
Brett Cannone7a30f72008-03-03 03:36:27 +0000837- Removed test.testall as test.regrtest replaces it.
838
Brett Cannonced04e02005-02-13 22:53:22 +0000839Documentation
840-------------
841
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000842Mac
843---
844
Georg Brandl52b92cc2008-05-25 09:43:03 +0000845- The cfmfile module was removed.
Guido van Rossume7ba4952007-06-06 23:52:48 +0000846
Guido van Rossum845702c2007-08-30 18:44:53 +0000847Platforms
848---------
849
850- Support for BeOS and AtheOS was removed (according to PEP 11).
851
852- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
853
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000854Tools/Demos
855-----------
856
Georg Brandl52b92cc2008-05-25 09:43:03 +0000857
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000858**(For information about older versions, consult the HISTORY file.)**