blob: 83e5874c3e39f9ca81caafbef84bcf6f28893368 [file] [log] [blame]
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
Barry Warsaw97f005d2008-12-03 16:46:14 +00007What's New in Python 3.1 alpha 0
8================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00009
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +000010*Release date: XX-XXX-200X*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000011
12Core and Builtins
13-----------------
14
Eric Smith5e5c0db2009-02-20 14:25:03 +000015=======
Raymond Hettingerb0d56af2009-03-03 10:52:49 +000016
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +000017- The io module has been reimplemented in C for speed.
18
Raymond Hettingerb0d56af2009-03-03 10:52:49 +000019- Give dict views an informative __repr__.
20
Eric Smith5e5c0db2009-02-20 14:25:03 +000021- Issue #5247: Improve error message when unknown format codes are
22 used when using str.format() with str, int, and float arguments.
23
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000024- Issue #5249: time.strftime returned malformed string when format string
25 contained non ascii character on windows.
26
Benjamin Petersonf5b52242009-03-02 23:31:26 +000027- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
28 source has already been decoded into str.
29
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000030- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
31 rotating the object pointer by 4 bits to the right.
32
Mark Dickinson87ec0852009-02-09 17:15:59 +000033- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
34 it now forces its argument to double before testing for infinity.
35
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000036- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
37 returns a non-number type.
38
Benjamin Peterson87618552009-02-08 15:00:52 +000039- Issue #5182: Removed memoryview.__str__.
40
Mark Dickinsonc008a172009-02-01 13:59:22 +000041- Issue #1717: Removed builtin cmp() function, dropped tp_compare
42 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000043 the type definition cmpfunc. The tp_compare slot has been renamed
44 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000045
Raymond Hettingere8364232009-02-02 22:55:09 +000046- Issue 1242657: the __len__() and __length_hint__() calls in several tools
47 were suppressing all exceptions. These include list() and bytearray().
48
Mark Dickinson1124e712009-01-28 21:25:58 +000049- Issue #4707: round(x, n) now returns an integer if x is an integer.
50 Previously it returned a float.
51
Antoine Pitroub52ec782009-01-25 16:34:23 +000052- Issue #4753: By enabling a configure option named '--with-computed-gotos'
53 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
54 evaluation loop is compiled with a new dispatch mechanism which gives
55 speedups of up to 20%, depending on the system, on various benchmarks.
56
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000057- Issue #4874: Most builtin decoders now reject unicode input.
58
Mark Dickinson9ffc0202009-01-20 20:45:53 +000059- Issue #4842: Don't allow trailing 'L' when constructing an integer
60 from a string.
61
Benjamin Peterson05e782f2009-01-19 15:15:02 +000062- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
63
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000064- Issue #4838: When a module is deallocated, free the memory backing the
65 optional module state data.
66
Mark Dickinson8055afd2009-01-17 10:04:45 +000067- Issue #4910: Rename nb_long slot to nb_reserved, and change its
68 type to (void *).
69
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000070- Issue #4935: The overflow checking code in the expandtabs() method common
71 to str, bytes and bytearray could be optimized away by the compiler, letting
72 the interpreter segfault instead of raising an error.
73
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000074- Issue #3720: Fix a crash when an iterator modifies its class and removes its
75 __next__ method.
76
Mark Dickinsone5e298f2009-01-12 20:49:19 +000077- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
78 function no longer attempt to call the __long__ slot to convert an object
79 to an integer. Only the __int__ and __trunc__ slots are examined.
80
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000081- Issue #4893: Use NT threading on CE.
82
Martin v. Löwisec59d042009-01-12 07:59:10 +000083- Issue #4915: Port sysmodule to Windows CE.
84
Antoine Pitrouab868312009-01-10 15:40:25 +000085- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
86 common cases are optimized thanks to a dedicated fast path and a moderate
87 amount of loop unrolling.
88
Antoine Pitrou14b78f52009-01-09 22:27:08 +000089- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
90 collecting the oldest generation) so that allocating lots of objects without
91 destroying them does not show quadratic performance. Based on a proposal by
92 Martin von Löwis at
93 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
94
Vinay Sajip6268cbc2009-01-21 00:19:28 +000095- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000096 having been closed (for instance, a read() call could return some
97 previously buffered data). Patch by Dmitry Vasiliev.
98
Antoine Pitrou05608432009-01-09 18:53:14 +000099- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
100 flag to work properly. Furthermore, when specifying -u, the text stdout
101 and stderr streams have line-by-line buffering enabled (the default being
102 to buffer arbitrary chunks of data).
103
Raymond Hettinger35631532009-01-09 03:58:09 +0000104- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
105 instead of ints (reducing its size from 4 to 8 times thereby reducing
106 Python's overall memory).
107
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000108- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
109 an existing .py counterpart, override the co_filename attributes of all
110 code objects if the original filename is obsolete (which can happen if the
111 file has been renamed, moved, or if it is accessed through different paths).
112 Patch by Ziga Seilnacht and Jean-Paul Calderone.
113
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000114- Issue #4580: Fix slicing of memoryviews when the item size is greater than
115 one byte. Also fixes the meaning of len() so that it returns the number of
116 items, rather than the size in bytes.
117
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000118- Issue #4075: Use OutputDebugStringW in Py_FatalError.
119
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000120- Issue #4747: When the terminal does not use utf-8, executing a script with
121 non-ascii characters in its name could fail with a "SyntaxError: None" error.
122
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000123- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000124 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000125
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000126- Issue #3680: Reference cycles created through a dict, set or deque iterator
127 did not get collected.
128
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000129- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
130 where the tp_hash and tp_dict slots are both NULL.
131
Georg Brandlccc47b62008-12-28 11:44:14 +0000132- Issue #4759: None is now allowed as the first argument of
133 bytearray.translate(). It was always allowed for bytes.translate().
134
Skip Montanaro80072cb2008-12-23 03:51:14 +0000135- Added test case to ensure attempts to read from a file opened for writing
136 fail.
137
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000138- Issue #3106: Speedup some comparisons (str/str and int/int).
139
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000140- Issue #2183: Simplify and optimize bytecode for list, dict and set
141 comprehensions. Original patch for list comprehensions by Neal Norwitz.
142
Antoine Pitrou621601a2008-12-17 23:18:19 +0000143- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
144 print elapsed times, not only when some objects are uncollectable /
145 unreachable. Original patch by Neil Schemenauer.
146
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000147- Issue #3439: Add a bit_length method to int.
148
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000149- Issue #2173: When getting device encoding, check that return value of
150 nl_langinfo is not the empty string. This was causing silent build
151 failures on OS X.
152
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000153- Issue #4597: Fixed several opcodes that weren't always propagating
154 exceptions.
155
156- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000157 context manager returns a value that cannot be converted to a bool.
158
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000159- Issue #4445: Replace "sizeof(PyBytesObject)" with
160 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
161 bytes instances. On a typical machine this saves 3 bytes of memory
162 (on average) per allocation of a bytes instance.
163
Christian Heimesa872de52008-12-05 08:26:55 +0000164- Issue #4533: File read operation was dreadfully slow due to a slowly
165 growing read buffer. Fixed by using the same growth rate algorithm as
166 Python 2.x.
167
Antoine Pitrou5504e892008-12-06 21:27:53 +0000168- Issue #4509: Various issues surrounding resize of bytearray objects to
169 which there are buffer exports (e.g. memoryview instances).
170
Georg Brandlf9734072008-12-07 15:30:06 +0000171- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
172 method on file objects with closefd=False. The file descriptor is still
173 kept open but the file object behaves like a closed file. The ``FileIO``
174 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000175
Antoine Pitroubc420402008-12-07 20:14:49 +0000176- Issue #4569: Interpreter crash when mutating a memoryview with an item size
177 larger than 1.
178
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000179- Issue #4748: Lambda generators no longer return a value.
180
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000181- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
182
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000183Library
184-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000185
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000186- Issue #5179: Fixed subprocess handle leak on failure on windows.
187
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000188- PEP 372: Added collections.OrderedDict().
189
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000190- The _asdict() for method for namedtuples now returns an OrderedDict().
191
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000192- configparser now defaults to using an ordered dictionary.
193
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000194- Issue #1733986: Fixed mmap crash in accessing elements of second map object
195 with same tagname but larger size than first map. (Windows)
196
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000197- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
198 overrun.
199
Tarek Ziadéf0721222009-02-28 10:16:43 +0000200- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
201 bdist_rpm command.
202
203- Issue #5378: added --quiet option to Distutils bdist_rpm command.
204
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000205- Issue #5052: make Distutils compatible with 2.3 again.
206
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000207- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
208 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000209
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000210- Issue #5287: Add exception handling around findCaller() call to help out
211 IronPython.
212
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000213- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
214 The file was resized to wrong size.
215
216- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
217
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000218- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000219 from the package_data and the data_files metadata.
220
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000221- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000222 support.TempdirManager, to avoid writing in the tests directory.
223
Tarek Ziadé68c50952009-02-13 23:04:17 +0000224- Issue #4524: distutils build_script command failed with --with-suffix=3.
225 Initial patch by Amaury Forgeot d'Arc.
226
Tarek Ziadé811d6242009-02-13 22:26:15 +0000227- Issue #2461: added tests for distutils.util
228
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000229- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
230 which inherited from numbers.py which did not have __slots__ defined. The
231 numbers hierarchy now has its own __slots__ declarations.
232
Antoine Pitroub353c122009-02-11 00:39:14 +0000233- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
234 encoding.
235
Thomas Heller465c8022009-02-10 18:59:04 +0000236- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
237 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
238
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000239- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
240 under NT and OS2. Patch by Philip Jenvey.
241
Brett Cannonbefb14f2009-02-10 02:10:16 +0000242- Issue #5128: Make compileall properly inspect bytecode to determine if needs
243 to be recreated. This avoids a timing hole thanks to the old reliance on the
244 ctime of the files involved.
245
Guilherme Polob681df42009-02-09 22:33:59 +0000246- Issue #5122: Synchronize tk load failure check to prevent a potential
247 deadlock.
248
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000249- Issue #1818: collections.namedtuple() now supports a keyword argument
250 'rename' which lets invalid fieldnames be automatically converted to
251 positional names in the form, _1, _2, ...
252
Guilherme Poloae098992009-02-09 16:44:24 +0000253- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
254
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000255- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
256 public documented method ``ZipImporter.get_filename()``.
257
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000258- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
259 the execution of packages by looking for and executing a ``__main__``
260 submodule when a package name is supplied. Initial patch by Andi
261 Vajda.
262
Guilherme Polo491aee22009-02-06 23:16:11 +0000263- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
264 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
265 Tkapp_Call when calling from a thread different than the one that created
266 the Tcl interpreter. Patch by Robert Hancock.
267
Eric Smith0e5b5622009-02-06 01:32:42 +0000268- Issue #4285: Change sys.version_info to be a named tuple. Patch by
269 Ross Light.
270
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000271- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000272 environment/Makefile. Patch by Douglas Greiman.
273
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000274- Issue #1276768: The verbose option was not used in the code of
275 distutils.file_util and distutils.dir_util.
276
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000277- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000278 --enabled-shared activated. Initial patch by Dave Peterson.
279
Guilherme Polo7f423952009-02-02 21:17:09 +0000280- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
281
Raymond Hettinger85602262009-02-03 04:19:10 +0000282- The shelve module now defaults to pickle protocol 3.
283
Brett Cannone61426e2009-01-30 01:31:34 +0000284- Fix a bug in the trace module where a bytes object from co_lnotab had its
285 items being passed through ord().
286
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000287- Issue #2047: shutil.move() could believe that its destination path was
288 inside its source path if it began with the same letters (e.g. "src" vs.
289 "src.new").
290
Guilherme Polo5f238482009-01-28 14:41:10 +0000291- Added the ttk module. See issue #2983: Ttk support for Tkinter.
292
Raymond Hettinger89e12962009-01-26 02:09:03 +0000293- Removed isSequenceType(), isMappingType, and isNumberType() from the
294 operator module; use the abstract base classes instead. Also removed
295 the repeat() function; use mul() instead.
296
Raymond Hettinger0f055172009-01-27 10:06:09 +0000297- Issue 5021: doctest.testfile() did not create __name__ and
298 collections.namedtuple() relied on __name__ being defined.
299
300- Backport importlib from Python 3.1. Only the import_module() function has
301 been backported to help facilitate transitions from 2.7 to 3.1.
302
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000303- Issue #1885: distutils. When running sdist with --formats=tar,gztar
304 the tar file was overriden by the gztar one.
305
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000306- Issue #4863: distutils.mwerkscompiler has been removed.
307
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000308- Added a new itertools functions: combinations_with_replacement()
309 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000310
Raymond Hettinger30729212009-02-12 06:28:27 +0000311- Issue 5032: added a step argument to itertools.count() and
312 allowed non-integer arguments.
313
Jesse Noller41faa542009-01-25 03:45:53 +0000314- Fix and properly document the multiprocessing module's logging
315 support, expose the internal levels and provide proper usage
316 examples.
317
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000318- Issue #1672332: fix unpickling of subnormal floats, which was
319 producing a ValueError on some platforms.
320
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000321- Issue #3881: Help Tcl to load even when started through the
322 unreadable local symlink to "Program Files" on Vista.
323
Martin v. Löwis59e47792009-01-24 14:10:07 +0000324- Issue #4710: Extract directories properly in the zipfile module;
325 allow adding directories to a zipfile.
326
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000327- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000328 --without-threads argument. When this occurs, _multiprocessing will
329 be disabled, and not compiled.
330
Antoine Pitrou08838b62009-01-21 00:55:13 +0000331- Issue #5008: When a file is opened in append mode with the new IO library,
332 do an explicit seek to the end of file (so that e.g. tell() returns the
333 file size rather than 0). This is consistent with the behaviour of the
334 traditional 2.x file object.
335
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000336- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
337 parameter was set.
338
Mark Dickinson8dd05142009-01-20 20:43:58 +0000339- Issue #4842: Always append a trailing 'L' when pickling longs using
340 pickle protocol 0. When reading, the 'L' is optional.
341
Brett Cannonafccd632009-01-20 02:21:27 +0000342- Add the importlib package.
343
Jesse Noller9a0fc972009-01-18 21:12:58 +0000344- Issue #4301: Patch the logging module to add processName support, remove
345 _check_logger_class from multiprocessing.
346
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000347- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000348 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000349
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000350- Issue #4959: inspect.formatargspec now works for keyword only arguments
351 without defaults.
352
Jesse Noller6214edd2009-01-19 16:23:53 +0000353- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
354 for *nix machines for negative handles and large int handles. Without this check
355 it is possible to segfault the interpreter.
356
Jesse Nollerb0516a62009-01-18 03:11:38 +0000357- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
358 in sharedctypes.py.
359
360- Issue #1225107: inspect.isclass() returned True for instances with a custom
361 __getattr__.
362
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000363- Issue #3826 and #4791: The socket module now closes the underlying socket
364 appropriately when it is being used via socket.makefile() objects
365 rather than delaying the close by waiting for garbage collection to do it.
366
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000367- Issue #1696199: Add collections.Counter() for rapid and convenient
368 counting.
369
Antoine Pitrou308705e2009-01-10 16:22:51 +0000370- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
371
Thomas Heller5e4e4272009-01-08 09:34:20 +0000372- Issue #4867: Fixed a crash in ctypes when passing a string to a
373 function without defining argtypes.
374
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000375- Issue #4272: Add an optional argument to the GzipFile constructor to override
376 the timestamp in the gzip stream. The default value remains the current time.
377 The information can be used by e.g. gunzip when decompressing. Patch by
378 Jacques Frechet.
379
Mark Dickinson315a20a2009-01-04 21:34:18 +0000380- Restore Python 2.3 compatibility for decimal.py.
381
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000382- Issue #3638: Remove functions from _tkinter module level that depend on
383 TkappObject to work with multiple threads.
384
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000385- Issue #4718: Adapt the wsgiref package so that it actually works with
386 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000387 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
388
Raymond Hettinger771ed762009-01-03 19:20:32 +0000389- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
390 to the decimal module.
391
Georg Brandl3a9b0622009-01-03 22:07:57 +0000392- Fractions.from_float() no longer loses precision for integers too big to
393 cast as floats.
394
Mark Dickinsonf9236412009-01-02 23:23:21 +0000395- Issue #4812: add missing underscore prefix to some internal-use-only
396 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
397
Georg Brandl3a9b0622009-01-03 22:07:57 +0000398- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
399 did unnecessary work in the common case where no key function was specified.
400
Georg Brandlb1441c72009-01-03 22:33:39 +0000401- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
402 the function is not a generator.
403
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000404- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
405 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000406
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000407- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000408 function. Original patch by Thomas Heller.
409
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000410- Issue #3767: Convert Tk object to string in tkColorChooser.
411
Martin v. Löwise354d782008-12-29 16:03:04 +0000412- Issue #3248: Allow placing ScrolledText in a PanedWindow.
413
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000414- Issue #4444: Allow assertRaises() to be used as a context handler, so that
415 the code under test can be written inline if more practical.
416
Georg Brandldb7b6b92009-01-01 15:53:14 +0000417- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
418 works as expected in the interactive environment.
419
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000420- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
421 Gabriel Genellina.
422
Antoine Pitrou180a3362008-12-14 16:36:46 +0000423- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
424 boundary.
425
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000426- Issue #4223: inspect.getsource() will now correctly display source code
427 for packages loaded via zipimport (or any other conformant PEP 302
428 loader). Original patch by Alexander Belopolsky.
429
430- Issue #4201: pdb can now access and display source code loaded via
431 zipimport (or any other conformant PEP 302 loader). Original patch by
432 Alexander Belopolsky.
433
434- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
435 302 conformant loader) will now work correctly in most cases (they
436 are still subject to the constraints that exist for all code running
437 from inside a module loaded via a PEP 302 loader and attempting to
438 perform IO operations based on __file__). Original patch by
439 Alexander Belopolsky.
440
441- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
442 allows backporting to maintenance branches. Original patch by
443 Alexander Belopolsky.
444
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000445- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
446 a non-ASCII letter.
447
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000448- Issue #4616: TarFile.utime(): Restore directory times on Windows.
449
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000450- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
451 codec cannot be found. This is for compatibility with the builtin behavior.
452
Facundo Batista708d5812008-12-11 04:20:07 +0000453- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
454 give correct results in the case where one argument is a quiet NaN
455 and the other is a finite number that requires rounding.
456
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000457- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
458 libs.
459
Georg Brandlf9734072008-12-07 15:30:06 +0000460- Added the subprocess.check_call_output() convenience function to get output
461 from a subprocess on success or raise an exception on error.
462
463- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
464 support unusual filenames (such as those containing semi-colons) in
465 Content-Disposition headers.
466
467- Issue #4384: Added logging integration with warnings module using
468 captureWarnings(). This change includes a NullHandler which does nothing;
469 it will be of use to library developers who want to avoid the "No handlers
470 could be found for logger XXX" message which can appear if the library user
471 doesn't configure logging.
472
473- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
474 exception.
475
Georg Brandleee31162008-12-07 15:15:22 +0000476- Issue #4529: fix the parser module's validation of try-except-finally
477 statements.
478
479- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
480 not a malformed option.
481
482- Added the subprocess.check_output() convenience function to get output
483 from a subprocess on success or raise an exception on error.
484
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000485- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
486 the corresponding tests now pass.
487
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000488- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
489 it was calling the wrong open() function.
490
Fred Drake9a0a65b2008-12-04 19:24:50 +0000491- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
492 support unusual filenames (such as those containing semi-colons) in
493 Content-Disposition headers.
494
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000495- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
496 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
497
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000498- Issue #5104: The socket module now raises OverflowError when 16-bit port and
499 protocol numbers are supplied outside the allowed 0-65536 range on bind()
500 and getservbyport().
501
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000502Tools/Demos
503-----------
504
Antoine Pitrou8a681222009-02-07 17:13:31 +0000505- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
506 and make it 2.6-compatible.
507
Guilherme Poloa7d27972009-01-28 16:06:51 +0000508- Ttk demos added in Demo/tkinter/ttk/
509
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000510- Issue #4677: add two list comprehension tests to pybench.
511
Georg Brandlb1441c72009-01-03 22:33:39 +0000512
513Build
514-----
515
Matthias Klose906785c2009-02-22 23:18:38 +0000516- Link the shared python library with $(MODLIBS).
517
Martin v. Löwis11f72102009-02-10 13:13:30 +0000518- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
519
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000520- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
521
Martin v. Löwise97637d2009-01-11 09:45:11 +0000522- Issue #4895: Use _strdup on Windows CE.
523
Georg Brandlb1441c72009-01-03 22:33:39 +0000524- Issue #4472: "configure --enable-shared" now works on OSX
525
526- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
527
528- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
529
530- Issue #4289: Remove Cancel button from AdvancedDlg.
531
532- Issue #1656675: Register a drop handler for .py* files on Windows.
533
534- Issue #4120: Exclude manifest from extension modules in VS2008.
535
536- Issue #4091: Install pythonxy.dll in system32 again.
537
538- Issue #4018: Disable "for me" installations on Vista.
539
540- Issue #3758: Add ``patchcheck`` build target to .PHONY.
541
542- Issue #4204: Fixed module build errors on FreeBSD 4.
543
544
545C-API
546-----
547
Mark Dickinson21776072009-02-10 16:13:25 +0000548- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
549 for negative arguments. Previously, it raised TypeError.
550
Georg Brandlb1441c72009-01-03 22:33:39 +0000551- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
552
553- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
554 the GIL is released, or owned by another thread.
555
556- Issue #4122: On Windows, fix a compilation error when using the
557 Py_UNICODE_ISSPACE macro in an extension module.
558
559
Mark Dickinsone675f082008-12-11 21:56:00 +0000560Extension Modules
561-----------------
562
Gregory P. Smith365a1862009-02-12 07:35:29 +0000563- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
564 supporting objects as input no matter how it was compiled (built in
565 implementations or external openssl library).
566
Mark Dickinson29500f62009-01-15 15:36:10 +0000567- Issue #4397: Fix occasional test_socket failure on OS X.
568
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000569- Issue #4279: Fix build of parsermodule under Cygwin.
570
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000571- Issue #4751: hashlib now releases the GIL when hashing large buffers
572 (with a hardwired threshold of 2048 bytes), allowing better parallelization
573 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
574
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000575- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
576
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000577- Issue #4738: Each zlib object now has a separate lock, allowing to compress
578 or decompress several streams at once on multi-CPU systems. Also, the GIL
579 is now released when computing the CRC of a large buffer. Patch by ebfe.
580
Georg Brandlb1441c72009-01-03 22:33:39 +0000581- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
582
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000583- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
584
Mark Dickinsone675f082008-12-11 21:56:00 +0000585- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
586 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000587
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000588- Issue #4583: array.array would not always prohibit resizing when a buffer
589 has been exported, resulting in an interpreter crash when accessing the
590 buffer.
591
Martin v. Löwis841edad2008-11-30 10:36:49 +0000592
Guilherme Polo9de29af2009-01-28 20:40:48 +0000593Tests
594-----
595
596- Issue #5083: New 'gui' resource for regrtest.
597
598
Brett Cannon7317c1e2008-11-25 19:19:17 +0000599Docs
600----
601
Georg Brandl52b92cc2008-05-25 09:43:03 +0000602
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000603**(For information about older versions, consult the HISTORY file.)**