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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
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
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000173- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
174
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000175Library
176-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000177
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000178- PEP 372: Added collections.OrderedDict().
179
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000180- The _asdict() for method for namedtuples now returns an OrderedDict().
181
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000182- Issue #1733986: Fixed mmap crash in accessing elements of second map object
183 with same tagname but larger size than first map. (Windows)
184
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000185- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
186 overrun.
187
Tarek Ziadéf0721222009-02-28 10:16:43 +0000188- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
189 bdist_rpm command.
190
191- Issue #5378: added --quiet option to Distutils bdist_rpm command.
192
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000193- Issue #5052: make Distutils compatible with 2.3 again.
194
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000195- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
196 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000197
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000198- Issue #5287: Add exception handling around findCaller() call to help out
199 IronPython.
200
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000201- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
202 The file was resized to wrong size.
203
204- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
205
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000206- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000207 from the package_data and the data_files metadata.
208
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000209- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000210 support.TempdirManager, to avoid writing in the tests directory.
211
Tarek Ziadé68c50952009-02-13 23:04:17 +0000212- Issue #4524: distutils build_script command failed with --with-suffix=3.
213 Initial patch by Amaury Forgeot d'Arc.
214
Tarek Ziadé811d6242009-02-13 22:26:15 +0000215- Issue #2461: added tests for distutils.util
216
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000217- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
218 which inherited from numbers.py which did not have __slots__ defined. The
219 numbers hierarchy now has its own __slots__ declarations.
220
Antoine Pitroub353c122009-02-11 00:39:14 +0000221- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
222 encoding.
223
Thomas Heller465c8022009-02-10 18:59:04 +0000224- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
225 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
226
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000227- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
228 under NT and OS2. Patch by Philip Jenvey.
229
Brett Cannonbefb14f2009-02-10 02:10:16 +0000230- Issue #5128: Make compileall properly inspect bytecode to determine if needs
231 to be recreated. This avoids a timing hole thanks to the old reliance on the
232 ctime of the files involved.
233
Guilherme Polob681df42009-02-09 22:33:59 +0000234- Issue #5122: Synchronize tk load failure check to prevent a potential
235 deadlock.
236
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000237- Issue #1818: collections.namedtuple() now supports a keyword argument
238 'rename' which lets invalid fieldnames be automatically converted to
239 positional names in the form, _1, _2, ...
240
Guilherme Poloae098992009-02-09 16:44:24 +0000241- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
242
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000243- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
244 public documented method ``ZipImporter.get_filename()``.
245
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000246- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
247 the execution of packages by looking for and executing a ``__main__``
248 submodule when a package name is supplied. Initial patch by Andi
249 Vajda.
250
Guilherme Polo491aee22009-02-06 23:16:11 +0000251- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
252 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
253 Tkapp_Call when calling from a thread different than the one that created
254 the Tcl interpreter. Patch by Robert Hancock.
255
Eric Smith0e5b5622009-02-06 01:32:42 +0000256- Issue #4285: Change sys.version_info to be a named tuple. Patch by
257 Ross Light.
258
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000259- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000260 environment/Makefile. Patch by Douglas Greiman.
261
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000262- Issue #1276768: The verbose option was not used in the code of
263 distutils.file_util and distutils.dir_util.
264
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000265- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000266 --enabled-shared activated. Initial patch by Dave Peterson.
267
Guilherme Polo7f423952009-02-02 21:17:09 +0000268- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
269
Raymond Hettinger85602262009-02-03 04:19:10 +0000270- The shelve module now defaults to pickle protocol 3.
271
Brett Cannone61426e2009-01-30 01:31:34 +0000272- Fix a bug in the trace module where a bytes object from co_lnotab had its
273 items being passed through ord().
274
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000275- Issue #2047: shutil.move() could believe that its destination path was
276 inside its source path if it began with the same letters (e.g. "src" vs.
277 "src.new").
278
Guilherme Polo5f238482009-01-28 14:41:10 +0000279- Added the ttk module. See issue #2983: Ttk support for Tkinter.
280
Raymond Hettinger89e12962009-01-26 02:09:03 +0000281- Removed isSequenceType(), isMappingType, and isNumberType() from the
282 operator module; use the abstract base classes instead. Also removed
283 the repeat() function; use mul() instead.
284
Raymond Hettinger0f055172009-01-27 10:06:09 +0000285- Issue 5021: doctest.testfile() did not create __name__ and
286 collections.namedtuple() relied on __name__ being defined.
287
288- Backport importlib from Python 3.1. Only the import_module() function has
289 been backported to help facilitate transitions from 2.7 to 3.1.
290
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000291- Issue #1885: distutils. When running sdist with --formats=tar,gztar
292 the tar file was overriden by the gztar one.
293
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000294- Issue #4863: distutils.mwerkscompiler has been removed.
295
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000296- Added a new itertools functions: combinations_with_replacement()
297 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000298
Raymond Hettinger30729212009-02-12 06:28:27 +0000299- Issue 5032: added a step argument to itertools.count() and
300 allowed non-integer arguments.
301
Jesse Noller41faa542009-01-25 03:45:53 +0000302- Fix and properly document the multiprocessing module's logging
303 support, expose the internal levels and provide proper usage
304 examples.
305
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000306- Issue #1672332: fix unpickling of subnormal floats, which was
307 producing a ValueError on some platforms.
308
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000309- Issue #3881: Help Tcl to load even when started through the
310 unreadable local symlink to "Program Files" on Vista.
311
Martin v. Löwis59e47792009-01-24 14:10:07 +0000312- Issue #4710: Extract directories properly in the zipfile module;
313 allow adding directories to a zipfile.
314
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000315- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000316 --without-threads argument. When this occurs, _multiprocessing will
317 be disabled, and not compiled.
318
Antoine Pitrou08838b62009-01-21 00:55:13 +0000319- Issue #5008: When a file is opened in append mode with the new IO library,
320 do an explicit seek to the end of file (so that e.g. tell() returns the
321 file size rather than 0). This is consistent with the behaviour of the
322 traditional 2.x file object.
323
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000324- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
325 parameter was set.
326
Mark Dickinson8dd05142009-01-20 20:43:58 +0000327- Issue #4842: Always append a trailing 'L' when pickling longs using
328 pickle protocol 0. When reading, the 'L' is optional.
329
Brett Cannonafccd632009-01-20 02:21:27 +0000330- Add the importlib package.
331
Jesse Noller9a0fc972009-01-18 21:12:58 +0000332- Issue #4301: Patch the logging module to add processName support, remove
333 _check_logger_class from multiprocessing.
334
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000335- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000336 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000337
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000338- Issue #4959: inspect.formatargspec now works for keyword only arguments
339 without defaults.
340
Jesse Noller6214edd2009-01-19 16:23:53 +0000341- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
342 for *nix machines for negative handles and large int handles. Without this check
343 it is possible to segfault the interpreter.
344
Jesse Nollerb0516a62009-01-18 03:11:38 +0000345- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
346 in sharedctypes.py.
347
348- Issue #1225107: inspect.isclass() returned True for instances with a custom
349 __getattr__.
350
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000351- Issue #3826 and #4791: The socket module now closes the underlying socket
352 appropriately when it is being used via socket.makefile() objects
353 rather than delaying the close by waiting for garbage collection to do it.
354
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000355- Issue #1696199: Add collections.Counter() for rapid and convenient
356 counting.
357
Antoine Pitrou308705e2009-01-10 16:22:51 +0000358- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
359
Thomas Heller5e4e4272009-01-08 09:34:20 +0000360- Issue #4867: Fixed a crash in ctypes when passing a string to a
361 function without defining argtypes.
362
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000363- Issue #4272: Add an optional argument to the GzipFile constructor to override
364 the timestamp in the gzip stream. The default value remains the current time.
365 The information can be used by e.g. gunzip when decompressing. Patch by
366 Jacques Frechet.
367
Mark Dickinson315a20a2009-01-04 21:34:18 +0000368- Restore Python 2.3 compatibility for decimal.py.
369
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000370- Issue #3638: Remove functions from _tkinter module level that depend on
371 TkappObject to work with multiple threads.
372
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000373- Issue #4718: Adapt the wsgiref package so that it actually works with
374 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000375 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
376
Raymond Hettinger771ed762009-01-03 19:20:32 +0000377- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
378 to the decimal module.
379
Georg Brandl3a9b0622009-01-03 22:07:57 +0000380- Fractions.from_float() no longer loses precision for integers too big to
381 cast as floats.
382
Mark Dickinsonf9236412009-01-02 23:23:21 +0000383- Issue #4812: add missing underscore prefix to some internal-use-only
384 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
385
Georg Brandl3a9b0622009-01-03 22:07:57 +0000386- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
387 did unnecessary work in the common case where no key function was specified.
388
Georg Brandlb1441c72009-01-03 22:33:39 +0000389- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
390 the function is not a generator.
391
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000392- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
393 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000394
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000395- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000396 function. Original patch by Thomas Heller.
397
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000398- Issue #3767: Convert Tk object to string in tkColorChooser.
399
Martin v. Löwise354d782008-12-29 16:03:04 +0000400- Issue #3248: Allow placing ScrolledText in a PanedWindow.
401
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000402- Issue #4444: Allow assertRaises() to be used as a context handler, so that
403 the code under test can be written inline if more practical.
404
Georg Brandldb7b6b92009-01-01 15:53:14 +0000405- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
406 works as expected in the interactive environment.
407
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000408- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
409 Gabriel Genellina.
410
Antoine Pitrou180a3362008-12-14 16:36:46 +0000411- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
412 boundary.
413
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000414- Issue #4223: inspect.getsource() will now correctly display source code
415 for packages loaded via zipimport (or any other conformant PEP 302
416 loader). Original patch by Alexander Belopolsky.
417
418- Issue #4201: pdb can now access and display source code loaded via
419 zipimport (or any other conformant PEP 302 loader). Original patch by
420 Alexander Belopolsky.
421
422- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
423 302 conformant loader) will now work correctly in most cases (they
424 are still subject to the constraints that exist for all code running
425 from inside a module loaded via a PEP 302 loader and attempting to
426 perform IO operations based on __file__). Original patch by
427 Alexander Belopolsky.
428
429- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
430 allows backporting to maintenance branches. Original patch by
431 Alexander Belopolsky.
432
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000433- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
434 a non-ASCII letter.
435
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000436- Issue #4616: TarFile.utime(): Restore directory times on Windows.
437
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000438- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
439 codec cannot be found. This is for compatibility with the builtin behavior.
440
Facundo Batista708d5812008-12-11 04:20:07 +0000441- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
442 give correct results in the case where one argument is a quiet NaN
443 and the other is a finite number that requires rounding.
444
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000445- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
446 libs.
447
Georg Brandlf9734072008-12-07 15:30:06 +0000448- Added the subprocess.check_call_output() convenience function to get output
449 from a subprocess on success or raise an exception on error.
450
451- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
452 support unusual filenames (such as those containing semi-colons) in
453 Content-Disposition headers.
454
455- Issue #4384: Added logging integration with warnings module using
456 captureWarnings(). This change includes a NullHandler which does nothing;
457 it will be of use to library developers who want to avoid the "No handlers
458 could be found for logger XXX" message which can appear if the library user
459 doesn't configure logging.
460
461- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
462 exception.
463
Georg Brandleee31162008-12-07 15:15:22 +0000464- Issue #4529: fix the parser module's validation of try-except-finally
465 statements.
466
467- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
468 not a malformed option.
469
470- Added the subprocess.check_output() convenience function to get output
471 from a subprocess on success or raise an exception on error.
472
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000473- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
474 the corresponding tests now pass.
475
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000476- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
477 it was calling the wrong open() function.
478
Fred Drake9a0a65b2008-12-04 19:24:50 +0000479- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
480 support unusual filenames (such as those containing semi-colons) in
481 Content-Disposition headers.
482
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000483- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
484 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
485
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000486- Issue #5104: The socket module now raises OverflowError when 16-bit port and
487 protocol numbers are supplied outside the allowed 0-65536 range on bind()
488 and getservbyport().
489
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000490Tools/Demos
491-----------
492
Antoine Pitrou8a681222009-02-07 17:13:31 +0000493- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
494 and make it 2.6-compatible.
495
Guilherme Poloa7d27972009-01-28 16:06:51 +0000496- Ttk demos added in Demo/tkinter/ttk/
497
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000498- Issue #4677: add two list comprehension tests to pybench.
499
Georg Brandlb1441c72009-01-03 22:33:39 +0000500
501Build
502-----
503
Matthias Klose906785c2009-02-22 23:18:38 +0000504- Link the shared python library with $(MODLIBS).
505
Martin v. Löwis11f72102009-02-10 13:13:30 +0000506- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
507
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000508- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
509
Martin v. Löwise97637d2009-01-11 09:45:11 +0000510- Issue #4895: Use _strdup on Windows CE.
511
Georg Brandlb1441c72009-01-03 22:33:39 +0000512- Issue #4472: "configure --enable-shared" now works on OSX
513
514- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
515
516- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
517
518- Issue #4289: Remove Cancel button from AdvancedDlg.
519
520- Issue #1656675: Register a drop handler for .py* files on Windows.
521
522- Issue #4120: Exclude manifest from extension modules in VS2008.
523
524- Issue #4091: Install pythonxy.dll in system32 again.
525
526- Issue #4018: Disable "for me" installations on Vista.
527
528- Issue #3758: Add ``patchcheck`` build target to .PHONY.
529
530- Issue #4204: Fixed module build errors on FreeBSD 4.
531
532
533C-API
534-----
535
Mark Dickinson21776072009-02-10 16:13:25 +0000536- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
537 for negative arguments. Previously, it raised TypeError.
538
Georg Brandlb1441c72009-01-03 22:33:39 +0000539- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
540
541- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
542 the GIL is released, or owned by another thread.
543
544- Issue #4122: On Windows, fix a compilation error when using the
545 Py_UNICODE_ISSPACE macro in an extension module.
546
547
Mark Dickinsone675f082008-12-11 21:56:00 +0000548Extension Modules
549-----------------
550
Gregory P. Smith365a1862009-02-12 07:35:29 +0000551- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
552 supporting objects as input no matter how it was compiled (built in
553 implementations or external openssl library).
554
Mark Dickinson29500f62009-01-15 15:36:10 +0000555- Issue #4397: Fix occasional test_socket failure on OS X.
556
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000557- Issue #4279: Fix build of parsermodule under Cygwin.
558
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000559- Issue #4751: hashlib now releases the GIL when hashing large buffers
560 (with a hardwired threshold of 2048 bytes), allowing better parallelization
561 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
562
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000563- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
564
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000565- Issue #4738: Each zlib object now has a separate lock, allowing to compress
566 or decompress several streams at once on multi-CPU systems. Also, the GIL
567 is now released when computing the CRC of a large buffer. Patch by ebfe.
568
Georg Brandlb1441c72009-01-03 22:33:39 +0000569- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
570
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000571- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
572
Mark Dickinsone675f082008-12-11 21:56:00 +0000573- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
574 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000575
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000576- Issue #4583: array.array would not always prohibit resizing when a buffer
577 has been exported, resulting in an interpreter crash when accessing the
578 buffer.
579
Martin v. Löwis841edad2008-11-30 10:36:49 +0000580
Guilherme Polo9de29af2009-01-28 20:40:48 +0000581Tests
582-----
583
584- Issue #5083: New 'gui' resource for regrtest.
585
586
Brett Cannon7317c1e2008-11-25 19:19:17 +0000587Docs
588----
589
Georg Brandl52b92cc2008-05-25 09:43:03 +0000590
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000591**(For information about older versions, consult the HISTORY file.)**