blob: 33a4098067ae90881c7a741a96a2a6528bd8cbcd [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
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000172- Issue #5287: Add exception handling around findCaller() call to help out
173 IronPython.
174
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000175- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
176 The file was resized to wrong size.
177
178- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
179
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000180- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000181 from the package_data and the data_files metadata.
182
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000183- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000184 support.TempdirManager, to avoid writing in the tests directory.
185
Tarek Ziadé68c50952009-02-13 23:04:17 +0000186- Issue #4524: distutils build_script command failed with --with-suffix=3.
187 Initial patch by Amaury Forgeot d'Arc.
188
Tarek Ziadé811d6242009-02-13 22:26:15 +0000189- Issue #2461: added tests for distutils.util
190
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000191- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
192 which inherited from numbers.py which did not have __slots__ defined. The
193 numbers hierarchy now has its own __slots__ declarations.
194
Antoine Pitroub353c122009-02-11 00:39:14 +0000195- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
196 encoding.
197
Thomas Heller465c8022009-02-10 18:59:04 +0000198- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
199 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
200
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000201- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
202 under NT and OS2. Patch by Philip Jenvey.
203
Brett Cannonbefb14f2009-02-10 02:10:16 +0000204- Issue #5128: Make compileall properly inspect bytecode to determine if needs
205 to be recreated. This avoids a timing hole thanks to the old reliance on the
206 ctime of the files involved.
207
Guilherme Polob681df42009-02-09 22:33:59 +0000208- Issue #5122: Synchronize tk load failure check to prevent a potential
209 deadlock.
210
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000211- Issue #1818: collections.namedtuple() now supports a keyword argument
212 'rename' which lets invalid fieldnames be automatically converted to
213 positional names in the form, _1, _2, ...
214
Guilherme Poloae098992009-02-09 16:44:24 +0000215- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
216
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000217- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
218 public documented method ``ZipImporter.get_filename()``.
219
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000220- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
221 the execution of packages by looking for and executing a ``__main__``
222 submodule when a package name is supplied. Initial patch by Andi
223 Vajda.
224
Guilherme Polo491aee22009-02-06 23:16:11 +0000225- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
226 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
227 Tkapp_Call when calling from a thread different than the one that created
228 the Tcl interpreter. Patch by Robert Hancock.
229
Eric Smith0e5b5622009-02-06 01:32:42 +0000230- Issue #4285: Change sys.version_info to be a named tuple. Patch by
231 Ross Light.
232
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000233- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000234 environment/Makefile. Patch by Douglas Greiman.
235
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000236- Issue #1276768: The verbose option was not used in the code of
237 distutils.file_util and distutils.dir_util.
238
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000239- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000240 --enabled-shared activated. Initial patch by Dave Peterson.
241
Guilherme Polo7f423952009-02-02 21:17:09 +0000242- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
243
Raymond Hettinger85602262009-02-03 04:19:10 +0000244- The shelve module now defaults to pickle protocol 3.
245
Brett Cannone61426e2009-01-30 01:31:34 +0000246- Fix a bug in the trace module where a bytes object from co_lnotab had its
247 items being passed through ord().
248
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000249- Issue #2047: shutil.move() could believe that its destination path was
250 inside its source path if it began with the same letters (e.g. "src" vs.
251 "src.new").
252
Guilherme Polo5f238482009-01-28 14:41:10 +0000253- Added the ttk module. See issue #2983: Ttk support for Tkinter.
254
Raymond Hettinger89e12962009-01-26 02:09:03 +0000255- Removed isSequenceType(), isMappingType, and isNumberType() from the
256 operator module; use the abstract base classes instead. Also removed
257 the repeat() function; use mul() instead.
258
Raymond Hettinger0f055172009-01-27 10:06:09 +0000259- Issue 5021: doctest.testfile() did not create __name__ and
260 collections.namedtuple() relied on __name__ being defined.
261
262- Backport importlib from Python 3.1. Only the import_module() function has
263 been backported to help facilitate transitions from 2.7 to 3.1.
264
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000265- Issue #1885: distutils. When running sdist with --formats=tar,gztar
266 the tar file was overriden by the gztar one.
267
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000268- Issue #4863: distutils.mwerkscompiler has been removed.
269
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000270- Added a new itertools functions: combinations_with_replacement()
271 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000272
Raymond Hettinger30729212009-02-12 06:28:27 +0000273- Issue 5032: added a step argument to itertools.count() and
274 allowed non-integer arguments.
275
Jesse Noller41faa542009-01-25 03:45:53 +0000276- Fix and properly document the multiprocessing module's logging
277 support, expose the internal levels and provide proper usage
278 examples.
279
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000280- Issue #1672332: fix unpickling of subnormal floats, which was
281 producing a ValueError on some platforms.
282
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000283- Issue #3881: Help Tcl to load even when started through the
284 unreadable local symlink to "Program Files" on Vista.
285
Martin v. Löwis59e47792009-01-24 14:10:07 +0000286- Issue #4710: Extract directories properly in the zipfile module;
287 allow adding directories to a zipfile.
288
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000289- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000290 --without-threads argument. When this occurs, _multiprocessing will
291 be disabled, and not compiled.
292
Antoine Pitrou08838b62009-01-21 00:55:13 +0000293- Issue #5008: When a file is opened in append mode with the new IO library,
294 do an explicit seek to the end of file (so that e.g. tell() returns the
295 file size rather than 0). This is consistent with the behaviour of the
296 traditional 2.x file object.
297
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000298- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
299 parameter was set.
300
Mark Dickinson8dd05142009-01-20 20:43:58 +0000301- Issue #4842: Always append a trailing 'L' when pickling longs using
302 pickle protocol 0. When reading, the 'L' is optional.
303
Brett Cannonafccd632009-01-20 02:21:27 +0000304- Add the importlib package.
305
Jesse Noller9a0fc972009-01-18 21:12:58 +0000306- Issue #4301: Patch the logging module to add processName support, remove
307 _check_logger_class from multiprocessing.
308
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000309- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000310 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000311
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000312- Issue #4959: inspect.formatargspec now works for keyword only arguments
313 without defaults.
314
Jesse Noller6214edd2009-01-19 16:23:53 +0000315- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
316 for *nix machines for negative handles and large int handles. Without this check
317 it is possible to segfault the interpreter.
318
Jesse Nollerb0516a62009-01-18 03:11:38 +0000319- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
320 in sharedctypes.py.
321
322- Issue #1225107: inspect.isclass() returned True for instances with a custom
323 __getattr__.
324
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000325- Issue #3826 and #4791: The socket module now closes the underlying socket
326 appropriately when it is being used via socket.makefile() objects
327 rather than delaying the close by waiting for garbage collection to do it.
328
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000329- Issue #1696199: Add collections.Counter() for rapid and convenient
330 counting.
331
Antoine Pitrou308705e2009-01-10 16:22:51 +0000332- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
333
Thomas Heller5e4e4272009-01-08 09:34:20 +0000334- Issue #4867: Fixed a crash in ctypes when passing a string to a
335 function without defining argtypes.
336
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000337- Issue #4272: Add an optional argument to the GzipFile constructor to override
338 the timestamp in the gzip stream. The default value remains the current time.
339 The information can be used by e.g. gunzip when decompressing. Patch by
340 Jacques Frechet.
341
Mark Dickinson315a20a2009-01-04 21:34:18 +0000342- Restore Python 2.3 compatibility for decimal.py.
343
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000344- Issue #3638: Remove functions from _tkinter module level that depend on
345 TkappObject to work with multiple threads.
346
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000347- Issue #4718: Adapt the wsgiref package so that it actually works with
348 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000349 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
350
Raymond Hettinger771ed762009-01-03 19:20:32 +0000351- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
352 to the decimal module.
353
Georg Brandl3a9b0622009-01-03 22:07:57 +0000354- Fractions.from_float() no longer loses precision for integers too big to
355 cast as floats.
356
Mark Dickinsonf9236412009-01-02 23:23:21 +0000357- Issue #4812: add missing underscore prefix to some internal-use-only
358 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
359
Georg Brandl3a9b0622009-01-03 22:07:57 +0000360- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
361 did unnecessary work in the common case where no key function was specified.
362
Georg Brandlb1441c72009-01-03 22:33:39 +0000363- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
364 the function is not a generator.
365
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000366- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
367 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000368
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000369- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000370 function. Original patch by Thomas Heller.
371
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000372- Issue #3767: Convert Tk object to string in tkColorChooser.
373
Martin v. Löwise354d782008-12-29 16:03:04 +0000374- Issue #3248: Allow placing ScrolledText in a PanedWindow.
375
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000376- Issue #4444: Allow assertRaises() to be used as a context handler, so that
377 the code under test can be written inline if more practical.
378
Georg Brandldb7b6b92009-01-01 15:53:14 +0000379- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
380 works as expected in the interactive environment.
381
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000382- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
383 Gabriel Genellina.
384
Antoine Pitrou180a3362008-12-14 16:36:46 +0000385- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
386 boundary.
387
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000388- Issue #4223: inspect.getsource() will now correctly display source code
389 for packages loaded via zipimport (or any other conformant PEP 302
390 loader). Original patch by Alexander Belopolsky.
391
392- Issue #4201: pdb can now access and display source code loaded via
393 zipimport (or any other conformant PEP 302 loader). Original patch by
394 Alexander Belopolsky.
395
396- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
397 302 conformant loader) will now work correctly in most cases (they
398 are still subject to the constraints that exist for all code running
399 from inside a module loaded via a PEP 302 loader and attempting to
400 perform IO operations based on __file__). Original patch by
401 Alexander Belopolsky.
402
403- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
404 allows backporting to maintenance branches. Original patch by
405 Alexander Belopolsky.
406
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000407- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
408 a non-ASCII letter.
409
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000410- Issue #4616: TarFile.utime(): Restore directory times on Windows.
411
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000412- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
413 codec cannot be found. This is for compatibility with the builtin behavior.
414
Facundo Batista708d5812008-12-11 04:20:07 +0000415- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
416 give correct results in the case where one argument is a quiet NaN
417 and the other is a finite number that requires rounding.
418
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000419- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
420 libs.
421
Georg Brandlf9734072008-12-07 15:30:06 +0000422- Added the subprocess.check_call_output() convenience function to get output
423 from a subprocess on success or raise an exception on error.
424
425- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
426 support unusual filenames (such as those containing semi-colons) in
427 Content-Disposition headers.
428
429- Issue #4384: Added logging integration with warnings module using
430 captureWarnings(). This change includes a NullHandler which does nothing;
431 it will be of use to library developers who want to avoid the "No handlers
432 could be found for logger XXX" message which can appear if the library user
433 doesn't configure logging.
434
435- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
436 exception.
437
Georg Brandleee31162008-12-07 15:15:22 +0000438- Issue #4529: fix the parser module's validation of try-except-finally
439 statements.
440
441- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
442 not a malformed option.
443
444- Added the subprocess.check_output() convenience function to get output
445 from a subprocess on success or raise an exception on error.
446
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000447- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
448 the corresponding tests now pass.
449
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000450- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
451 it was calling the wrong open() function.
452
Fred Drake9a0a65b2008-12-04 19:24:50 +0000453- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
454 support unusual filenames (such as those containing semi-colons) in
455 Content-Disposition headers.
456
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000457- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
458 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
459
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000460- Issue #5104: The socket module now raises OverflowError when 16-bit port and
461 protocol numbers are supplied outside the allowed 0-65536 range on bind()
462 and getservbyport().
463
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000464Tools/Demos
465-----------
466
Antoine Pitrou8a681222009-02-07 17:13:31 +0000467- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
468 and make it 2.6-compatible.
469
Guilherme Poloa7d27972009-01-28 16:06:51 +0000470- Ttk demos added in Demo/tkinter/ttk/
471
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000472- Issue #4677: add two list comprehension tests to pybench.
473
Georg Brandlb1441c72009-01-03 22:33:39 +0000474
475Build
476-----
477
Martin v. Löwis11f72102009-02-10 13:13:30 +0000478- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
479
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000480- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
481
Martin v. Löwise97637d2009-01-11 09:45:11 +0000482- Issue #4895: Use _strdup on Windows CE.
483
Georg Brandlb1441c72009-01-03 22:33:39 +0000484- Issue #4472: "configure --enable-shared" now works on OSX
485
486- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
487
488- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
489
490- Issue #4289: Remove Cancel button from AdvancedDlg.
491
492- Issue #1656675: Register a drop handler for .py* files on Windows.
493
494- Issue #4120: Exclude manifest from extension modules in VS2008.
495
496- Issue #4091: Install pythonxy.dll in system32 again.
497
498- Issue #4018: Disable "for me" installations on Vista.
499
500- Issue #3758: Add ``patchcheck`` build target to .PHONY.
501
502- Issue #4204: Fixed module build errors on FreeBSD 4.
503
504
505C-API
506-----
507
Mark Dickinson21776072009-02-10 16:13:25 +0000508- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
509 for negative arguments. Previously, it raised TypeError.
510
Georg Brandlb1441c72009-01-03 22:33:39 +0000511- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
512
513- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
514 the GIL is released, or owned by another thread.
515
516- Issue #4122: On Windows, fix a compilation error when using the
517 Py_UNICODE_ISSPACE macro in an extension module.
518
519
Mark Dickinsone675f082008-12-11 21:56:00 +0000520Extension Modules
521-----------------
522
Gregory P. Smith365a1862009-02-12 07:35:29 +0000523- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
524 supporting objects as input no matter how it was compiled (built in
525 implementations or external openssl library).
526
Mark Dickinson29500f62009-01-15 15:36:10 +0000527- Issue #4397: Fix occasional test_socket failure on OS X.
528
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000529- Issue #4279: Fix build of parsermodule under Cygwin.
530
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000531- Issue #4751: hashlib now releases the GIL when hashing large buffers
532 (with a hardwired threshold of 2048 bytes), allowing better parallelization
533 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
534
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000535- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
536
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000537- Issue #4738: Each zlib object now has a separate lock, allowing to compress
538 or decompress several streams at once on multi-CPU systems. Also, the GIL
539 is now released when computing the CRC of a large buffer. Patch by ebfe.
540
Georg Brandlb1441c72009-01-03 22:33:39 +0000541- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
542
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000543- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
544
Mark Dickinsone675f082008-12-11 21:56:00 +0000545- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
546 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000547
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000548- Issue #4583: array.array would not always prohibit resizing when a buffer
549 has been exported, resulting in an interpreter crash when accessing the
550 buffer.
551
Martin v. Löwis841edad2008-11-30 10:36:49 +0000552
Guilherme Polo9de29af2009-01-28 20:40:48 +0000553Tests
554-----
555
556- Issue #5083: New 'gui' resource for regrtest.
557
558
Brett Cannon7317c1e2008-11-25 19:19:17 +0000559Docs
560----
561
Georg Brandl52b92cc2008-05-25 09:43:03 +0000562
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000563**(For information about older versions, consult the HISTORY file.)**