blob: 7f5a99b16227c37a8d03b4b4d694259f9056a284 [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=======
16- Issue #5247: Improve error message when unknown format codes are
17 used when using str.format() with str, int, and float arguments.
18
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000019- Issue #5249: time.strftime returned malformed string when format string
20 contained non ascii character on windows.
21
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000022- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
23 rotating the object pointer by 4 bits to the right.
24
Mark Dickinson87ec0852009-02-09 17:15:59 +000025- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
26 it now forces its argument to double before testing for infinity.
27
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000028- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
29 returns a non-number type.
30
Benjamin Peterson87618552009-02-08 15:00:52 +000031- Issue #5182: Removed memoryview.__str__.
32
Mark Dickinsonc008a172009-02-01 13:59:22 +000033- Issue #1717: Removed builtin cmp() function, dropped tp_compare
34 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000035 the type definition cmpfunc. The tp_compare slot has been renamed
36 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000037
Raymond Hettingere8364232009-02-02 22:55:09 +000038- Issue 1242657: the __len__() and __length_hint__() calls in several tools
39 were suppressing all exceptions. These include list() and bytearray().
40
Mark Dickinson1124e712009-01-28 21:25:58 +000041- Issue #4707: round(x, n) now returns an integer if x is an integer.
42 Previously it returned a float.
43
Antoine Pitroub52ec782009-01-25 16:34:23 +000044- Issue #4753: By enabling a configure option named '--with-computed-gotos'
45 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
46 evaluation loop is compiled with a new dispatch mechanism which gives
47 speedups of up to 20%, depending on the system, on various benchmarks.
48
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000049- Issue #4874: Most builtin decoders now reject unicode input.
50
Mark Dickinson9ffc0202009-01-20 20:45:53 +000051- Issue #4842: Don't allow trailing 'L' when constructing an integer
52 from a string.
53
Benjamin Peterson05e782f2009-01-19 15:15:02 +000054- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
55
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000056- Issue #4838: When a module is deallocated, free the memory backing the
57 optional module state data.
58
Mark Dickinson8055afd2009-01-17 10:04:45 +000059- Issue #4910: Rename nb_long slot to nb_reserved, and change its
60 type to (void *).
61
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000062- Issue #4935: The overflow checking code in the expandtabs() method common
63 to str, bytes and bytearray could be optimized away by the compiler, letting
64 the interpreter segfault instead of raising an error.
65
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000066- Issue #3720: Fix a crash when an iterator modifies its class and removes its
67 __next__ method.
68
Mark Dickinsone5e298f2009-01-12 20:49:19 +000069- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
70 function no longer attempt to call the __long__ slot to convert an object
71 to an integer. Only the __int__ and __trunc__ slots are examined.
72
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000073- Issue #4893: Use NT threading on CE.
74
Martin v. Löwisec59d042009-01-12 07:59:10 +000075- Issue #4915: Port sysmodule to Windows CE.
76
Antoine Pitrouab868312009-01-10 15:40:25 +000077- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
78 common cases are optimized thanks to a dedicated fast path and a moderate
79 amount of loop unrolling.
80
Antoine Pitrou14b78f52009-01-09 22:27:08 +000081- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
82 collecting the oldest generation) so that allocating lots of objects without
83 destroying them does not show quadratic performance. Based on a proposal by
84 Martin von Löwis at
85 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
86
Vinay Sajip6268cbc2009-01-21 00:19:28 +000087- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000088 having been closed (for instance, a read() call could return some
89 previously buffered data). Patch by Dmitry Vasiliev.
90
Antoine Pitrou05608432009-01-09 18:53:14 +000091- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
92 flag to work properly. Furthermore, when specifying -u, the text stdout
93 and stderr streams have line-by-line buffering enabled (the default being
94 to buffer arbitrary chunks of data).
95
Raymond Hettinger35631532009-01-09 03:58:09 +000096- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
97 instead of ints (reducing its size from 4 to 8 times thereby reducing
98 Python's overall memory).
99
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000100- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
101 an existing .py counterpart, override the co_filename attributes of all
102 code objects if the original filename is obsolete (which can happen if the
103 file has been renamed, moved, or if it is accessed through different paths).
104 Patch by Ziga Seilnacht and Jean-Paul Calderone.
105
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000106- Issue #4580: Fix slicing of memoryviews when the item size is greater than
107 one byte. Also fixes the meaning of len() so that it returns the number of
108 items, rather than the size in bytes.
109
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000110- Issue #4075: Use OutputDebugStringW in Py_FatalError.
111
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000112- Issue #4747: When the terminal does not use utf-8, executing a script with
113 non-ascii characters in its name could fail with a "SyntaxError: None" error.
114
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000115- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000116 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000117
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000118- Issue #3680: Reference cycles created through a dict, set or deque iterator
119 did not get collected.
120
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000121- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
122 where the tp_hash and tp_dict slots are both NULL.
123
Georg Brandlccc47b62008-12-28 11:44:14 +0000124- Issue #4759: None is now allowed as the first argument of
125 bytearray.translate(). It was always allowed for bytes.translate().
126
Skip Montanaro80072cb2008-12-23 03:51:14 +0000127- Added test case to ensure attempts to read from a file opened for writing
128 fail.
129
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000130- Issue #3106: Speedup some comparisons (str/str and int/int).
131
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000132- Issue #2183: Simplify and optimize bytecode for list, dict and set
133 comprehensions. Original patch for list comprehensions by Neal Norwitz.
134
Antoine Pitrou621601a2008-12-17 23:18:19 +0000135- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
136 print elapsed times, not only when some objects are uncollectable /
137 unreachable. Original patch by Neil Schemenauer.
138
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000139- Issue #3439: Add a bit_length method to int.
140
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000141- Issue #2173: When getting device encoding, check that return value of
142 nl_langinfo is not the empty string. This was causing silent build
143 failures on OS X.
144
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000145- Issue #4597: Fixed several opcodes that weren't always propagating
146 exceptions.
147
148- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000149 context manager returns a value that cannot be converted to a bool.
150
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000151- Issue #4445: Replace "sizeof(PyBytesObject)" with
152 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
153 bytes instances. On a typical machine this saves 3 bytes of memory
154 (on average) per allocation of a bytes instance.
155
Christian Heimesa872de52008-12-05 08:26:55 +0000156- Issue #4533: File read operation was dreadfully slow due to a slowly
157 growing read buffer. Fixed by using the same growth rate algorithm as
158 Python 2.x.
159
Antoine Pitrou5504e892008-12-06 21:27:53 +0000160- Issue #4509: Various issues surrounding resize of bytearray objects to
161 which there are buffer exports (e.g. memoryview instances).
162
Georg Brandlf9734072008-12-07 15:30:06 +0000163- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
164 method on file objects with closefd=False. The file descriptor is still
165 kept open but the file object behaves like a closed file. The ``FileIO``
166 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000167
Antoine Pitroubc420402008-12-07 20:14:49 +0000168- Issue #4569: Interpreter crash when mutating a memoryview with an item size
169 larger than 1.
170
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000171- Issue #4748: Lambda generators no longer return a value.
172
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000173Library
174-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000175
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000176- Issue #1733986: Fixed mmap crash in accessing elements of second map object
177 with same tagname but larger size than first map. (Windows)
178
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000179- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
180 overrun.
181
Tarek Ziadéf0721222009-02-28 10:16:43 +0000182- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
183 bdist_rpm command.
184
185- Issue #5378: added --quiet option to Distutils bdist_rpm command.
186
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000187- Issue #5052: make Distutils compatible with 2.3 again.
188
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000189- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
190 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000191
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000192- Issue #5287: Add exception handling around findCaller() call to help out
193 IronPython.
194
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000195- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
196 The file was resized to wrong size.
197
198- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
199
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000200- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000201 from the package_data and the data_files metadata.
202
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000203- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000204 support.TempdirManager, to avoid writing in the tests directory.
205
Tarek Ziadé68c50952009-02-13 23:04:17 +0000206- Issue #4524: distutils build_script command failed with --with-suffix=3.
207 Initial patch by Amaury Forgeot d'Arc.
208
Tarek Ziadé811d6242009-02-13 22:26:15 +0000209- Issue #2461: added tests for distutils.util
210
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000211- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
212 which inherited from numbers.py which did not have __slots__ defined. The
213 numbers hierarchy now has its own __slots__ declarations.
214
Antoine Pitroub353c122009-02-11 00:39:14 +0000215- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
216 encoding.
217
Thomas Heller465c8022009-02-10 18:59:04 +0000218- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
219 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
220
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000221- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
222 under NT and OS2. Patch by Philip Jenvey.
223
Brett Cannonbefb14f2009-02-10 02:10:16 +0000224- Issue #5128: Make compileall properly inspect bytecode to determine if needs
225 to be recreated. This avoids a timing hole thanks to the old reliance on the
226 ctime of the files involved.
227
Guilherme Polob681df42009-02-09 22:33:59 +0000228- Issue #5122: Synchronize tk load failure check to prevent a potential
229 deadlock.
230
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000231- Issue #1818: collections.namedtuple() now supports a keyword argument
232 'rename' which lets invalid fieldnames be automatically converted to
233 positional names in the form, _1, _2, ...
234
Guilherme Poloae098992009-02-09 16:44:24 +0000235- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
236
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000237- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
238 public documented method ``ZipImporter.get_filename()``.
239
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000240- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
241 the execution of packages by looking for and executing a ``__main__``
242 submodule when a package name is supplied. Initial patch by Andi
243 Vajda.
244
Guilherme Polo491aee22009-02-06 23:16:11 +0000245- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
246 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
247 Tkapp_Call when calling from a thread different than the one that created
248 the Tcl interpreter. Patch by Robert Hancock.
249
Eric Smith0e5b5622009-02-06 01:32:42 +0000250- Issue #4285: Change sys.version_info to be a named tuple. Patch by
251 Ross Light.
252
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000253- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000254 environment/Makefile. Patch by Douglas Greiman.
255
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000256- Issue #1276768: The verbose option was not used in the code of
257 distutils.file_util and distutils.dir_util.
258
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000259- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000260 --enabled-shared activated. Initial patch by Dave Peterson.
261
Guilherme Polo7f423952009-02-02 21:17:09 +0000262- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
263
Raymond Hettinger85602262009-02-03 04:19:10 +0000264- The shelve module now defaults to pickle protocol 3.
265
Brett Cannone61426e2009-01-30 01:31:34 +0000266- Fix a bug in the trace module where a bytes object from co_lnotab had its
267 items being passed through ord().
268
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000269- Issue #2047: shutil.move() could believe that its destination path was
270 inside its source path if it began with the same letters (e.g. "src" vs.
271 "src.new").
272
Guilherme Polo5f238482009-01-28 14:41:10 +0000273- Added the ttk module. See issue #2983: Ttk support for Tkinter.
274
Raymond Hettinger89e12962009-01-26 02:09:03 +0000275- Removed isSequenceType(), isMappingType, and isNumberType() from the
276 operator module; use the abstract base classes instead. Also removed
277 the repeat() function; use mul() instead.
278
Raymond Hettinger0f055172009-01-27 10:06:09 +0000279- Issue 5021: doctest.testfile() did not create __name__ and
280 collections.namedtuple() relied on __name__ being defined.
281
282- Backport importlib from Python 3.1. Only the import_module() function has
283 been backported to help facilitate transitions from 2.7 to 3.1.
284
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000285- Issue #1885: distutils. When running sdist with --formats=tar,gztar
286 the tar file was overriden by the gztar one.
287
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000288- Issue #4863: distutils.mwerkscompiler has been removed.
289
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000290- Added a new itertools functions: combinations_with_replacement()
291 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000292
Raymond Hettinger30729212009-02-12 06:28:27 +0000293- Issue 5032: added a step argument to itertools.count() and
294 allowed non-integer arguments.
295
Jesse Noller41faa542009-01-25 03:45:53 +0000296- Fix and properly document the multiprocessing module's logging
297 support, expose the internal levels and provide proper usage
298 examples.
299
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000300- Issue #1672332: fix unpickling of subnormal floats, which was
301 producing a ValueError on some platforms.
302
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000303- Issue #3881: Help Tcl to load even when started through the
304 unreadable local symlink to "Program Files" on Vista.
305
Martin v. Löwis59e47792009-01-24 14:10:07 +0000306- Issue #4710: Extract directories properly in the zipfile module;
307 allow adding directories to a zipfile.
308
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000309- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000310 --without-threads argument. When this occurs, _multiprocessing will
311 be disabled, and not compiled.
312
Antoine Pitrou08838b62009-01-21 00:55:13 +0000313- Issue #5008: When a file is opened in append mode with the new IO library,
314 do an explicit seek to the end of file (so that e.g. tell() returns the
315 file size rather than 0). This is consistent with the behaviour of the
316 traditional 2.x file object.
317
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000318- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
319 parameter was set.
320
Mark Dickinson8dd05142009-01-20 20:43:58 +0000321- Issue #4842: Always append a trailing 'L' when pickling longs using
322 pickle protocol 0. When reading, the 'L' is optional.
323
Brett Cannonafccd632009-01-20 02:21:27 +0000324- Add the importlib package.
325
Jesse Noller9a0fc972009-01-18 21:12:58 +0000326- Issue #4301: Patch the logging module to add processName support, remove
327 _check_logger_class from multiprocessing.
328
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000329- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000330 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000331
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000332- Issue #4959: inspect.formatargspec now works for keyword only arguments
333 without defaults.
334
Jesse Noller6214edd2009-01-19 16:23:53 +0000335- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
336 for *nix machines for negative handles and large int handles. Without this check
337 it is possible to segfault the interpreter.
338
Jesse Nollerb0516a62009-01-18 03:11:38 +0000339- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
340 in sharedctypes.py.
341
342- Issue #1225107: inspect.isclass() returned True for instances with a custom
343 __getattr__.
344
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000345- Issue #3826 and #4791: The socket module now closes the underlying socket
346 appropriately when it is being used via socket.makefile() objects
347 rather than delaying the close by waiting for garbage collection to do it.
348
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000349- Issue #1696199: Add collections.Counter() for rapid and convenient
350 counting.
351
Antoine Pitrou308705e2009-01-10 16:22:51 +0000352- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
353
Thomas Heller5e4e4272009-01-08 09:34:20 +0000354- Issue #4867: Fixed a crash in ctypes when passing a string to a
355 function without defining argtypes.
356
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000357- Issue #4272: Add an optional argument to the GzipFile constructor to override
358 the timestamp in the gzip stream. The default value remains the current time.
359 The information can be used by e.g. gunzip when decompressing. Patch by
360 Jacques Frechet.
361
Mark Dickinson315a20a2009-01-04 21:34:18 +0000362- Restore Python 2.3 compatibility for decimal.py.
363
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000364- Issue #3638: Remove functions from _tkinter module level that depend on
365 TkappObject to work with multiple threads.
366
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000367- Issue #4718: Adapt the wsgiref package so that it actually works with
368 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000369 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
370
Raymond Hettinger771ed762009-01-03 19:20:32 +0000371- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
372 to the decimal module.
373
Georg Brandl3a9b0622009-01-03 22:07:57 +0000374- Fractions.from_float() no longer loses precision for integers too big to
375 cast as floats.
376
Mark Dickinsonf9236412009-01-02 23:23:21 +0000377- Issue #4812: add missing underscore prefix to some internal-use-only
378 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
379
Georg Brandl3a9b0622009-01-03 22:07:57 +0000380- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
381 did unnecessary work in the common case where no key function was specified.
382
Georg Brandlb1441c72009-01-03 22:33:39 +0000383- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
384 the function is not a generator.
385
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000386- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
387 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000388
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000389- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000390 function. Original patch by Thomas Heller.
391
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000392- Issue #3767: Convert Tk object to string in tkColorChooser.
393
Martin v. Löwise354d782008-12-29 16:03:04 +0000394- Issue #3248: Allow placing ScrolledText in a PanedWindow.
395
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000396- Issue #4444: Allow assertRaises() to be used as a context handler, so that
397 the code under test can be written inline if more practical.
398
Georg Brandldb7b6b92009-01-01 15:53:14 +0000399- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
400 works as expected in the interactive environment.
401
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000402- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
403 Gabriel Genellina.
404
Antoine Pitrou180a3362008-12-14 16:36:46 +0000405- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
406 boundary.
407
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000408- Issue #4223: inspect.getsource() will now correctly display source code
409 for packages loaded via zipimport (or any other conformant PEP 302
410 loader). Original patch by Alexander Belopolsky.
411
412- Issue #4201: pdb can now access and display source code loaded via
413 zipimport (or any other conformant PEP 302 loader). Original patch by
414 Alexander Belopolsky.
415
416- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
417 302 conformant loader) will now work correctly in most cases (they
418 are still subject to the constraints that exist for all code running
419 from inside a module loaded via a PEP 302 loader and attempting to
420 perform IO operations based on __file__). Original patch by
421 Alexander Belopolsky.
422
423- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
424 allows backporting to maintenance branches. Original patch by
425 Alexander Belopolsky.
426
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000427- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
428 a non-ASCII letter.
429
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000430- Issue #4616: TarFile.utime(): Restore directory times on Windows.
431
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000432- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
433 codec cannot be found. This is for compatibility with the builtin behavior.
434
Facundo Batista708d5812008-12-11 04:20:07 +0000435- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
436 give correct results in the case where one argument is a quiet NaN
437 and the other is a finite number that requires rounding.
438
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000439- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
440 libs.
441
Georg Brandlf9734072008-12-07 15:30:06 +0000442- Added the subprocess.check_call_output() convenience function to get output
443 from a subprocess on success or raise an exception on error.
444
445- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
446 support unusual filenames (such as those containing semi-colons) in
447 Content-Disposition headers.
448
449- Issue #4384: Added logging integration with warnings module using
450 captureWarnings(). This change includes a NullHandler which does nothing;
451 it will be of use to library developers who want to avoid the "No handlers
452 could be found for logger XXX" message which can appear if the library user
453 doesn't configure logging.
454
455- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
456 exception.
457
Georg Brandleee31162008-12-07 15:15:22 +0000458- Issue #4529: fix the parser module's validation of try-except-finally
459 statements.
460
461- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
462 not a malformed option.
463
464- Added the subprocess.check_output() convenience function to get output
465 from a subprocess on success or raise an exception on error.
466
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000467- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
468 the corresponding tests now pass.
469
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000470- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
471 it was calling the wrong open() function.
472
Fred Drake9a0a65b2008-12-04 19:24:50 +0000473- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
474 support unusual filenames (such as those containing semi-colons) in
475 Content-Disposition headers.
476
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000477- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
478 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
479
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000480- Issue #5104: The socket module now raises OverflowError when 16-bit port and
481 protocol numbers are supplied outside the allowed 0-65536 range on bind()
482 and getservbyport().
483
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000484Tools/Demos
485-----------
486
Antoine Pitrou8a681222009-02-07 17:13:31 +0000487- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
488 and make it 2.6-compatible.
489
Guilherme Poloa7d27972009-01-28 16:06:51 +0000490- Ttk demos added in Demo/tkinter/ttk/
491
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000492- Issue #4677: add two list comprehension tests to pybench.
493
Georg Brandlb1441c72009-01-03 22:33:39 +0000494
495Build
496-----
497
Matthias Klose906785c2009-02-22 23:18:38 +0000498- Link the shared python library with $(MODLIBS).
499
Martin v. Löwis11f72102009-02-10 13:13:30 +0000500- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
501
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000502- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
503
Martin v. Löwise97637d2009-01-11 09:45:11 +0000504- Issue #4895: Use _strdup on Windows CE.
505
Georg Brandlb1441c72009-01-03 22:33:39 +0000506- Issue #4472: "configure --enable-shared" now works on OSX
507
508- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
509
510- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
511
512- Issue #4289: Remove Cancel button from AdvancedDlg.
513
514- Issue #1656675: Register a drop handler for .py* files on Windows.
515
516- Issue #4120: Exclude manifest from extension modules in VS2008.
517
518- Issue #4091: Install pythonxy.dll in system32 again.
519
520- Issue #4018: Disable "for me" installations on Vista.
521
522- Issue #3758: Add ``patchcheck`` build target to .PHONY.
523
524- Issue #4204: Fixed module build errors on FreeBSD 4.
525
526
527C-API
528-----
529
Mark Dickinson21776072009-02-10 16:13:25 +0000530- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
531 for negative arguments. Previously, it raised TypeError.
532
Georg Brandlb1441c72009-01-03 22:33:39 +0000533- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
534
535- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
536 the GIL is released, or owned by another thread.
537
538- Issue #4122: On Windows, fix a compilation error when using the
539 Py_UNICODE_ISSPACE macro in an extension module.
540
541
Mark Dickinsone675f082008-12-11 21:56:00 +0000542Extension Modules
543-----------------
544
Gregory P. Smith365a1862009-02-12 07:35:29 +0000545- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
546 supporting objects as input no matter how it was compiled (built in
547 implementations or external openssl library).
548
Mark Dickinson29500f62009-01-15 15:36:10 +0000549- Issue #4397: Fix occasional test_socket failure on OS X.
550
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000551- Issue #4279: Fix build of parsermodule under Cygwin.
552
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000553- Issue #4751: hashlib now releases the GIL when hashing large buffers
554 (with a hardwired threshold of 2048 bytes), allowing better parallelization
555 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
556
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000557- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
558
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000559- Issue #4738: Each zlib object now has a separate lock, allowing to compress
560 or decompress several streams at once on multi-CPU systems. Also, the GIL
561 is now released when computing the CRC of a large buffer. Patch by ebfe.
562
Georg Brandlb1441c72009-01-03 22:33:39 +0000563- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
564
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000565- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
566
Mark Dickinsone675f082008-12-11 21:56:00 +0000567- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
568 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000569
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000570- Issue #4583: array.array would not always prohibit resizing when a buffer
571 has been exported, resulting in an interpreter crash when accessing the
572 buffer.
573
Martin v. Löwis841edad2008-11-30 10:36:49 +0000574
Guilherme Polo9de29af2009-01-28 20:40:48 +0000575Tests
576-----
577
578- Issue #5083: New 'gui' resource for regrtest.
579
580
Brett Cannon7317c1e2008-11-25 19:19:17 +0000581Docs
582----
583
Georg Brandl52b92cc2008-05-25 09:43:03 +0000584
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000585**(For information about older versions, consult the HISTORY file.)**