blob: e89c81995185a65ff0a38af7234545accb9b51bd [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
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000015- Issue #5249: time.strftime returned malformed string when format string
16 contained non ascii character on windows.
17
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000018- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
19 rotating the object pointer by 4 bits to the right.
20
Mark Dickinson87ec0852009-02-09 17:15:59 +000021- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
22 it now forces its argument to double before testing for infinity.
23
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000024- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
25 returns a non-number type.
26
Benjamin Peterson87618552009-02-08 15:00:52 +000027- Issue #5182: Removed memoryview.__str__.
28
Mark Dickinsonc008a172009-02-01 13:59:22 +000029- Issue #1717: Removed builtin cmp() function, dropped tp_compare
30 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000031 the type definition cmpfunc. The tp_compare slot has been renamed
32 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000033
Raymond Hettingere8364232009-02-02 22:55:09 +000034- Issue 1242657: the __len__() and __length_hint__() calls in several tools
35 were suppressing all exceptions. These include list() and bytearray().
36
Mark Dickinson1124e712009-01-28 21:25:58 +000037- Issue #4707: round(x, n) now returns an integer if x is an integer.
38 Previously it returned a float.
39
Antoine Pitroub52ec782009-01-25 16:34:23 +000040- Issue #4753: By enabling a configure option named '--with-computed-gotos'
41 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
42 evaluation loop is compiled with a new dispatch mechanism which gives
43 speedups of up to 20%, depending on the system, on various benchmarks.
44
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000045- Issue #4874: Most builtin decoders now reject unicode input.
46
Mark Dickinson9ffc0202009-01-20 20:45:53 +000047- Issue #4842: Don't allow trailing 'L' when constructing an integer
48 from a string.
49
Benjamin Peterson05e782f2009-01-19 15:15:02 +000050- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
51
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000052- Issue #4838: When a module is deallocated, free the memory backing the
53 optional module state data.
54
Mark Dickinson8055afd2009-01-17 10:04:45 +000055- Issue #4910: Rename nb_long slot to nb_reserved, and change its
56 type to (void *).
57
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000058- Issue #4935: The overflow checking code in the expandtabs() method common
59 to str, bytes and bytearray could be optimized away by the compiler, letting
60 the interpreter segfault instead of raising an error.
61
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000062- Issue #3720: Fix a crash when an iterator modifies its class and removes its
63 __next__ method.
64
Mark Dickinsone5e298f2009-01-12 20:49:19 +000065- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
66 function no longer attempt to call the __long__ slot to convert an object
67 to an integer. Only the __int__ and __trunc__ slots are examined.
68
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000069- Issue #4893: Use NT threading on CE.
70
Martin v. Löwisec59d042009-01-12 07:59:10 +000071- Issue #4915: Port sysmodule to Windows CE.
72
Antoine Pitrouab868312009-01-10 15:40:25 +000073- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
74 common cases are optimized thanks to a dedicated fast path and a moderate
75 amount of loop unrolling.
76
Antoine Pitrou14b78f52009-01-09 22:27:08 +000077- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
78 collecting the oldest generation) so that allocating lots of objects without
79 destroying them does not show quadratic performance. Based on a proposal by
80 Martin von Löwis at
81 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
82
Vinay Sajip6268cbc2009-01-21 00:19:28 +000083- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000084 having been closed (for instance, a read() call could return some
85 previously buffered data). Patch by Dmitry Vasiliev.
86
Antoine Pitrou05608432009-01-09 18:53:14 +000087- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
88 flag to work properly. Furthermore, when specifying -u, the text stdout
89 and stderr streams have line-by-line buffering enabled (the default being
90 to buffer arbitrary chunks of data).
91
Raymond Hettinger35631532009-01-09 03:58:09 +000092- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
93 instead of ints (reducing its size from 4 to 8 times thereby reducing
94 Python's overall memory).
95
Antoine Pitroud35cbf62009-01-06 19:02:24 +000096- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
97 an existing .py counterpart, override the co_filename attributes of all
98 code objects if the original filename is obsolete (which can happen if the
99 file has been renamed, moved, or if it is accessed through different paths).
100 Patch by Ziga Seilnacht and Jean-Paul Calderone.
101
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000102- Issue #4580: Fix slicing of memoryviews when the item size is greater than
103 one byte. Also fixes the meaning of len() so that it returns the number of
104 items, rather than the size in bytes.
105
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000106- Issue #4075: Use OutputDebugStringW in Py_FatalError.
107
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000108- Issue #4747: When the terminal does not use utf-8, executing a script with
109 non-ascii characters in its name could fail with a "SyntaxError: None" error.
110
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000111- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000112 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000113
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000114- Issue #3680: Reference cycles created through a dict, set or deque iterator
115 did not get collected.
116
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000117- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
118 where the tp_hash and tp_dict slots are both NULL.
119
Georg Brandlccc47b62008-12-28 11:44:14 +0000120- Issue #4759: None is now allowed as the first argument of
121 bytearray.translate(). It was always allowed for bytes.translate().
122
Skip Montanaro80072cb2008-12-23 03:51:14 +0000123- Added test case to ensure attempts to read from a file opened for writing
124 fail.
125
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000126- Issue #3106: Speedup some comparisons (str/str and int/int).
127
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000128- Issue #2183: Simplify and optimize bytecode for list, dict and set
129 comprehensions. Original patch for list comprehensions by Neal Norwitz.
130
Antoine Pitrou621601a2008-12-17 23:18:19 +0000131- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
132 print elapsed times, not only when some objects are uncollectable /
133 unreachable. Original patch by Neil Schemenauer.
134
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000135- Issue #3439: Add a bit_length method to int.
136
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000137- Issue #2173: When getting device encoding, check that return value of
138 nl_langinfo is not the empty string. This was causing silent build
139 failures on OS X.
140
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000141- Issue #4597: Fixed several opcodes that weren't always propagating
142 exceptions.
143
144- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000145 context manager returns a value that cannot be converted to a bool.
146
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000147- Issue #4445: Replace "sizeof(PyBytesObject)" with
148 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
149 bytes instances. On a typical machine this saves 3 bytes of memory
150 (on average) per allocation of a bytes instance.
151
Christian Heimesa872de52008-12-05 08:26:55 +0000152- Issue #4533: File read operation was dreadfully slow due to a slowly
153 growing read buffer. Fixed by using the same growth rate algorithm as
154 Python 2.x.
155
Antoine Pitrou5504e892008-12-06 21:27:53 +0000156- Issue #4509: Various issues surrounding resize of bytearray objects to
157 which there are buffer exports (e.g. memoryview instances).
158
Georg Brandlf9734072008-12-07 15:30:06 +0000159- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
160 method on file objects with closefd=False. The file descriptor is still
161 kept open but the file object behaves like a closed file. The ``FileIO``
162 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000163
Antoine Pitroubc420402008-12-07 20:14:49 +0000164- Issue #4569: Interpreter crash when mutating a memoryview with an item size
165 larger than 1.
166
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000167- Issue #4748: Lambda generators no longer return a value.
168
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000169Library
170-------
171
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000172- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
173 The file was resized to wrong size.
174
175- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
176
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000177- Issue #2279: distutils.sdist.add_defaults now add files
178 from the package_data and the data_files metadata.
179
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000180- Issue #5257: refactored all tests in distutils, so they use
181 support.TempdirManager, to avoid writing in the tests directory.
182
Tarek Ziadé68c50952009-02-13 23:04:17 +0000183- Issue #4524: distutils build_script command failed with --with-suffix=3.
184 Initial patch by Amaury Forgeot d'Arc.
185
Tarek Ziadé811d6242009-02-13 22:26:15 +0000186- Issue #2461: added tests for distutils.util
187
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000188- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
189 which inherited from numbers.py which did not have __slots__ defined. The
190 numbers hierarchy now has its own __slots__ declarations.
191
Antoine Pitroub353c122009-02-11 00:39:14 +0000192- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
193 encoding.
194
Thomas Heller465c8022009-02-10 18:59:04 +0000195- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
196 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
197
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000198- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
199 under NT and OS2. Patch by Philip Jenvey.
200
Brett Cannonbefb14f2009-02-10 02:10:16 +0000201- Issue #5128: Make compileall properly inspect bytecode to determine if needs
202 to be recreated. This avoids a timing hole thanks to the old reliance on the
203 ctime of the files involved.
204
Guilherme Polob681df42009-02-09 22:33:59 +0000205- Issue #5122: Synchronize tk load failure check to prevent a potential
206 deadlock.
207
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000208- Issue #1818: collections.namedtuple() now supports a keyword argument
209 'rename' which lets invalid fieldnames be automatically converted to
210 positional names in the form, _1, _2, ...
211
Guilherme Poloae098992009-02-09 16:44:24 +0000212- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
213
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000214- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
215 public documented method ``ZipImporter.get_filename()``.
216
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000217- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
218 the execution of packages by looking for and executing a ``__main__``
219 submodule when a package name is supplied. Initial patch by Andi
220 Vajda.
221
Guilherme Polo491aee22009-02-06 23:16:11 +0000222- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
223 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
224 Tkapp_Call when calling from a thread different than the one that created
225 the Tcl interpreter. Patch by Robert Hancock.
226
Eric Smith0e5b5622009-02-06 01:32:42 +0000227- Issue #4285: Change sys.version_info to be a named tuple. Patch by
228 Ross Light.
229
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000230- Issue #1520877: Now distutils.sysconfig reads $AR from the
231 environment/Makefile. Patch by Douglas Greiman.
232
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000233- Issue #1276768: The verbose option was not used in the code of
234 distutils.file_util and distutils.dir_util.
235
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000236- Issue #5132: Fixed trouble building extensions under Solaris with
237 --enabled-shared activated. Initial patch by Dave Peterson.
238
Guilherme Polo7f423952009-02-02 21:17:09 +0000239- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
240
Raymond Hettinger85602262009-02-03 04:19:10 +0000241- The shelve module now defaults to pickle protocol 3.
242
Brett Cannone61426e2009-01-30 01:31:34 +0000243- Fix a bug in the trace module where a bytes object from co_lnotab had its
244 items being passed through ord().
245
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000246- Issue #2047: shutil.move() could believe that its destination path was
247 inside its source path if it began with the same letters (e.g. "src" vs.
248 "src.new").
249
Guilherme Polo5f238482009-01-28 14:41:10 +0000250- Added the ttk module. See issue #2983: Ttk support for Tkinter.
251
Raymond Hettinger89e12962009-01-26 02:09:03 +0000252- Removed isSequenceType(), isMappingType, and isNumberType() from the
253 operator module; use the abstract base classes instead. Also removed
254 the repeat() function; use mul() instead.
255
Raymond Hettinger0f055172009-01-27 10:06:09 +0000256- Issue 5021: doctest.testfile() did not create __name__ and
257 collections.namedtuple() relied on __name__ being defined.
258
259- Backport importlib from Python 3.1. Only the import_module() function has
260 been backported to help facilitate transitions from 2.7 to 3.1.
261
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000262- Issue #1885: distutils. When running sdist with --formats=tar,gztar
263 the tar file was overriden by the gztar one.
264
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000265- Issue #4863: distutils.mwerkscompiler has been removed.
266
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000267- Added a new itertools functions: combinations_with_replacement()
268 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000269
Raymond Hettinger30729212009-02-12 06:28:27 +0000270- Issue 5032: added a step argument to itertools.count() and
271 allowed non-integer arguments.
272
Jesse Noller41faa542009-01-25 03:45:53 +0000273- Fix and properly document the multiprocessing module's logging
274 support, expose the internal levels and provide proper usage
275 examples.
276
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000277- Issue #1672332: fix unpickling of subnormal floats, which was
278 producing a ValueError on some platforms.
279
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000280- Issue #3881: Help Tcl to load even when started through the
281 unreadable local symlink to "Program Files" on Vista.
282
Martin v. Löwis59e47792009-01-24 14:10:07 +0000283- Issue #4710: Extract directories properly in the zipfile module;
284 allow adding directories to a zipfile.
285
Jesse Noller6fd47e22009-01-23 14:09:08 +0000286- Issue #3807: _multiprocessing build fails when configure is passed
287 --without-threads argument. When this occurs, _multiprocessing will
288 be disabled, and not compiled.
289
Antoine Pitrou08838b62009-01-21 00:55:13 +0000290- Issue #5008: When a file is opened in append mode with the new IO library,
291 do an explicit seek to the end of file (so that e.g. tell() returns the
292 file size rather than 0). This is consistent with the behaviour of the
293 traditional 2.x file object.
294
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000295- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
296 parameter was set.
297
Mark Dickinson8dd05142009-01-20 20:43:58 +0000298- Issue #4842: Always append a trailing 'L' when pickling longs using
299 pickle protocol 0. When reading, the 'L' is optional.
300
Brett Cannonafccd632009-01-20 02:21:27 +0000301- Add the importlib package.
302
Jesse Noller9a0fc972009-01-18 21:12:58 +0000303- Issue #4301: Patch the logging module to add processName support, remove
304 _check_logger_class from multiprocessing.
305
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000306- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000307 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000308
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000309- Issue #4959: inspect.formatargspec now works for keyword only arguments
310 without defaults.
311
Jesse Noller6214edd2009-01-19 16:23:53 +0000312- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
313 for *nix machines for negative handles and large int handles. Without this check
314 it is possible to segfault the interpreter.
315
Jesse Nollerb0516a62009-01-18 03:11:38 +0000316- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
317 in sharedctypes.py.
318
319- Issue #1225107: inspect.isclass() returned True for instances with a custom
320 __getattr__.
321
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000322- Issue #3826 and #4791: The socket module now closes the underlying socket
323 appropriately when it is being used via socket.makefile() objects
324 rather than delaying the close by waiting for garbage collection to do it.
325
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000326- Issue #1696199: Add collections.Counter() for rapid and convenient
327 counting.
328
Antoine Pitrou308705e2009-01-10 16:22:51 +0000329- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
330
Thomas Heller5e4e4272009-01-08 09:34:20 +0000331- Issue #4867: Fixed a crash in ctypes when passing a string to a
332 function without defining argtypes.
333
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000334- Issue #4272: Add an optional argument to the GzipFile constructor to override
335 the timestamp in the gzip stream. The default value remains the current time.
336 The information can be used by e.g. gunzip when decompressing. Patch by
337 Jacques Frechet.
338
Mark Dickinson315a20a2009-01-04 21:34:18 +0000339- Restore Python 2.3 compatibility for decimal.py.
340
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000341- Issue #3638: Remove functions from _tkinter module level that depend on
342 TkappObject to work with multiple threads.
343
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000344- Issue #4718: Adapt the wsgiref package so that it actually works with
345 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000346 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
347
Raymond Hettinger771ed762009-01-03 19:20:32 +0000348- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
349 to the decimal module.
350
Georg Brandl3a9b0622009-01-03 22:07:57 +0000351- Fractions.from_float() no longer loses precision for integers too big to
352 cast as floats.
353
Mark Dickinsonf9236412009-01-02 23:23:21 +0000354- Issue #4812: add missing underscore prefix to some internal-use-only
355 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
356
Georg Brandl3a9b0622009-01-03 22:07:57 +0000357- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
358 did unnecessary work in the common case where no key function was specified.
359
Georg Brandlb1441c72009-01-03 22:33:39 +0000360- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
361 the function is not a generator.
362
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000363- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
364 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000365
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000366- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000367 function. Original patch by Thomas Heller.
368
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000369- Issue #3767: Convert Tk object to string in tkColorChooser.
370
Martin v. Löwise354d782008-12-29 16:03:04 +0000371- Issue #3248: Allow placing ScrolledText in a PanedWindow.
372
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000373- Issue #4444: Allow assertRaises() to be used as a context handler, so that
374 the code under test can be written inline if more practical.
375
Georg Brandldb7b6b92009-01-01 15:53:14 +0000376- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
377 works as expected in the interactive environment.
378
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000379- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
380 Gabriel Genellina.
381
Antoine Pitrou180a3362008-12-14 16:36:46 +0000382- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
383 boundary.
384
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000385- Issue #4223: inspect.getsource() will now correctly display source code
386 for packages loaded via zipimport (or any other conformant PEP 302
387 loader). Original patch by Alexander Belopolsky.
388
389- Issue #4201: pdb can now access and display source code loaded via
390 zipimport (or any other conformant PEP 302 loader). Original patch by
391 Alexander Belopolsky.
392
393- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
394 302 conformant loader) will now work correctly in most cases (they
395 are still subject to the constraints that exist for all code running
396 from inside a module loaded via a PEP 302 loader and attempting to
397 perform IO operations based on __file__). Original patch by
398 Alexander Belopolsky.
399
400- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
401 allows backporting to maintenance branches. Original patch by
402 Alexander Belopolsky.
403
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000404- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
405 a non-ASCII letter.
406
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000407- Issue #4616: TarFile.utime(): Restore directory times on Windows.
408
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000409- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
410 codec cannot be found. This is for compatibility with the builtin behavior.
411
Facundo Batista708d5812008-12-11 04:20:07 +0000412- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
413 give correct results in the case where one argument is a quiet NaN
414 and the other is a finite number that requires rounding.
415
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000416- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
417 libs.
418
Georg Brandlf9734072008-12-07 15:30:06 +0000419- Added the subprocess.check_call_output() convenience function to get output
420 from a subprocess on success or raise an exception on error.
421
422- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
423 support unusual filenames (such as those containing semi-colons) in
424 Content-Disposition headers.
425
426- Issue #4384: Added logging integration with warnings module using
427 captureWarnings(). This change includes a NullHandler which does nothing;
428 it will be of use to library developers who want to avoid the "No handlers
429 could be found for logger XXX" message which can appear if the library user
430 doesn't configure logging.
431
432- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
433 exception.
434
Georg Brandleee31162008-12-07 15:15:22 +0000435- Issue #4529: fix the parser module's validation of try-except-finally
436 statements.
437
438- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
439 not a malformed option.
440
441- Added the subprocess.check_output() convenience function to get output
442 from a subprocess on success or raise an exception on error.
443
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000444- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
445 the corresponding tests now pass.
446
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000447- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
448 it was calling the wrong open() function.
449
Fred Drake9a0a65b2008-12-04 19:24:50 +0000450- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
451 support unusual filenames (such as those containing semi-colons) in
452 Content-Disposition headers.
453
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000454- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
455 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
456
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000457- Issue #5104: The socket module now raises OverflowError when 16-bit port and
458 protocol numbers are supplied outside the allowed 0-65536 range on bind()
459 and getservbyport().
460
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000461Tools/Demos
462-----------
463
Antoine Pitrou8a681222009-02-07 17:13:31 +0000464- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
465 and make it 2.6-compatible.
466
Guilherme Poloa7d27972009-01-28 16:06:51 +0000467- Ttk demos added in Demo/tkinter/ttk/
468
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000469- Issue #4677: add two list comprehension tests to pybench.
470
Georg Brandlb1441c72009-01-03 22:33:39 +0000471
472Build
473-----
474
Martin v. Löwis11f72102009-02-10 13:13:30 +0000475- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
476
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000477- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
478
Martin v. Löwise97637d2009-01-11 09:45:11 +0000479- Issue #4895: Use _strdup on Windows CE.
480
Georg Brandlb1441c72009-01-03 22:33:39 +0000481- Issue #4472: "configure --enable-shared" now works on OSX
482
483- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
484
485- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
486
487- Issue #4289: Remove Cancel button from AdvancedDlg.
488
489- Issue #1656675: Register a drop handler for .py* files on Windows.
490
491- Issue #4120: Exclude manifest from extension modules in VS2008.
492
493- Issue #4091: Install pythonxy.dll in system32 again.
494
495- Issue #4018: Disable "for me" installations on Vista.
496
497- Issue #3758: Add ``patchcheck`` build target to .PHONY.
498
499- Issue #4204: Fixed module build errors on FreeBSD 4.
500
501
502C-API
503-----
504
Mark Dickinson21776072009-02-10 16:13:25 +0000505- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
506 for negative arguments. Previously, it raised TypeError.
507
Georg Brandlb1441c72009-01-03 22:33:39 +0000508- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
509
510- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
511 the GIL is released, or owned by another thread.
512
513- Issue #4122: On Windows, fix a compilation error when using the
514 Py_UNICODE_ISSPACE macro in an extension module.
515
516
Mark Dickinsone675f082008-12-11 21:56:00 +0000517Extension Modules
518-----------------
519
Gregory P. Smith365a1862009-02-12 07:35:29 +0000520- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
521 supporting objects as input no matter how it was compiled (built in
522 implementations or external openssl library).
523
Mark Dickinson29500f62009-01-15 15:36:10 +0000524- Issue #4397: Fix occasional test_socket failure on OS X.
525
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000526- Issue #4279: Fix build of parsermodule under Cygwin.
527
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000528- Issue #4751: hashlib now releases the GIL when hashing large buffers
529 (with a hardwired threshold of 2048 bytes), allowing better parallelization
530 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
531
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000532- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
533
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000534- Issue #4738: Each zlib object now has a separate lock, allowing to compress
535 or decompress several streams at once on multi-CPU systems. Also, the GIL
536 is now released when computing the CRC of a large buffer. Patch by ebfe.
537
Georg Brandlb1441c72009-01-03 22:33:39 +0000538- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
539
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000540- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
541
Mark Dickinsone675f082008-12-11 21:56:00 +0000542- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
543 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000544
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000545- Issue #4583: array.array would not always prohibit resizing when a buffer
546 has been exported, resulting in an interpreter crash when accessing the
547 buffer.
548
Martin v. Löwis841edad2008-11-30 10:36:49 +0000549
Guilherme Polo9de29af2009-01-28 20:40:48 +0000550Tests
551-----
552
553- Issue #5083: New 'gui' resource for regrtest.
554
555
Brett Cannon7317c1e2008-11-25 19:19:17 +0000556Docs
557----
558
Georg Brandl52b92cc2008-05-25 09:43:03 +0000559
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000560**(For information about older versions, consult the HISTORY file.)**