blob: 702e02f119c14505e56f9746ba69cb8fb54aaaad [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Barry Warsaw97f005d2008-12-03 16:46:14 +00007What's New in Python 3.1 alpha 0
8================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00009
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +000010*Release date: XX-XXX-200X*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000011
12Core and Builtins
13-----------------
14
Eric Smith5e5c0db2009-02-20 14:25:03 +000015=======
Raymond Hettingerb0d56af2009-03-03 10:52:49 +000016
17- Give dict views an informative __repr__.
18
Eric Smith5e5c0db2009-02-20 14:25:03 +000019- Issue #5247: Improve error message when unknown format codes are
20 used when using str.format() with str, int, and float arguments.
21
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000022- Issue #5249: time.strftime returned malformed string when format string
23 contained non ascii character on windows.
24
Benjamin Petersonf5b52242009-03-02 23:31:26 +000025- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
26 source has already been decoded into str.
27
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000028- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
29 rotating the object pointer by 4 bits to the right.
30
Mark Dickinson87ec0852009-02-09 17:15:59 +000031- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
32 it now forces its argument to double before testing for infinity.
33
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000034- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
35 returns a non-number type.
36
Benjamin Peterson87618552009-02-08 15:00:52 +000037- Issue #5182: Removed memoryview.__str__.
38
Mark Dickinsonc008a172009-02-01 13:59:22 +000039- Issue #1717: Removed builtin cmp() function, dropped tp_compare
40 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000041 the type definition cmpfunc. The tp_compare slot has been renamed
42 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000043
Raymond Hettingere8364232009-02-02 22:55:09 +000044- Issue 1242657: the __len__() and __length_hint__() calls in several tools
45 were suppressing all exceptions. These include list() and bytearray().
46
Mark Dickinson1124e712009-01-28 21:25:58 +000047- Issue #4707: round(x, n) now returns an integer if x is an integer.
48 Previously it returned a float.
49
Antoine Pitroub52ec782009-01-25 16:34:23 +000050- Issue #4753: By enabling a configure option named '--with-computed-gotos'
51 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
52 evaluation loop is compiled with a new dispatch mechanism which gives
53 speedups of up to 20%, depending on the system, on various benchmarks.
54
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000055- Issue #4874: Most builtin decoders now reject unicode input.
56
Mark Dickinson9ffc0202009-01-20 20:45:53 +000057- Issue #4842: Don't allow trailing 'L' when constructing an integer
58 from a string.
59
Benjamin Peterson05e782f2009-01-19 15:15:02 +000060- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
61
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000062- Issue #4838: When a module is deallocated, free the memory backing the
63 optional module state data.
64
Mark Dickinson8055afd2009-01-17 10:04:45 +000065- Issue #4910: Rename nb_long slot to nb_reserved, and change its
66 type to (void *).
67
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000068- Issue #4935: The overflow checking code in the expandtabs() method common
69 to str, bytes and bytearray could be optimized away by the compiler, letting
70 the interpreter segfault instead of raising an error.
71
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000072- Issue #3720: Fix a crash when an iterator modifies its class and removes its
73 __next__ method.
74
Mark Dickinsone5e298f2009-01-12 20:49:19 +000075- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
76 function no longer attempt to call the __long__ slot to convert an object
77 to an integer. Only the __int__ and __trunc__ slots are examined.
78
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000079- Issue #4893: Use NT threading on CE.
80
Martin v. Löwisec59d042009-01-12 07:59:10 +000081- Issue #4915: Port sysmodule to Windows CE.
82
Antoine Pitrouab868312009-01-10 15:40:25 +000083- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
84 common cases are optimized thanks to a dedicated fast path and a moderate
85 amount of loop unrolling.
86
Antoine Pitrou14b78f52009-01-09 22:27:08 +000087- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
88 collecting the oldest generation) so that allocating lots of objects without
89 destroying them does not show quadratic performance. Based on a proposal by
90 Martin von Löwis at
91 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
92
Vinay Sajip6268cbc2009-01-21 00:19:28 +000093- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000094 having been closed (for instance, a read() call could return some
95 previously buffered data). Patch by Dmitry Vasiliev.
96
Antoine Pitrou05608432009-01-09 18:53:14 +000097- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
98 flag to work properly. Furthermore, when specifying -u, the text stdout
99 and stderr streams have line-by-line buffering enabled (the default being
100 to buffer arbitrary chunks of data).
101
Raymond Hettinger35631532009-01-09 03:58:09 +0000102- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
103 instead of ints (reducing its size from 4 to 8 times thereby reducing
104 Python's overall memory).
105
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000106- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
107 an existing .py counterpart, override the co_filename attributes of all
108 code objects if the original filename is obsolete (which can happen if the
109 file has been renamed, moved, or if it is accessed through different paths).
110 Patch by Ziga Seilnacht and Jean-Paul Calderone.
111
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000112- Issue #4580: Fix slicing of memoryviews when the item size is greater than
113 one byte. Also fixes the meaning of len() so that it returns the number of
114 items, rather than the size in bytes.
115
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000116- Issue #4075: Use OutputDebugStringW in Py_FatalError.
117
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000118- Issue #4747: When the terminal does not use utf-8, executing a script with
119 non-ascii characters in its name could fail with a "SyntaxError: None" error.
120
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000121- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000122 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000123
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000124- Issue #3680: Reference cycles created through a dict, set or deque iterator
125 did not get collected.
126
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000127- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
128 where the tp_hash and tp_dict slots are both NULL.
129
Georg Brandlccc47b62008-12-28 11:44:14 +0000130- Issue #4759: None is now allowed as the first argument of
131 bytearray.translate(). It was always allowed for bytes.translate().
132
Skip Montanaro80072cb2008-12-23 03:51:14 +0000133- Added test case to ensure attempts to read from a file opened for writing
134 fail.
135
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000136- Issue #3106: Speedup some comparisons (str/str and int/int).
137
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000138- Issue #2183: Simplify and optimize bytecode for list, dict and set
139 comprehensions. Original patch for list comprehensions by Neal Norwitz.
140
Antoine Pitrou621601a2008-12-17 23:18:19 +0000141- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
142 print elapsed times, not only when some objects are uncollectable /
143 unreachable. Original patch by Neil Schemenauer.
144
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000145- Issue #3439: Add a bit_length method to int.
146
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000147- Issue #2173: When getting device encoding, check that return value of
148 nl_langinfo is not the empty string. This was causing silent build
149 failures on OS X.
150
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000151- Issue #4597: Fixed several opcodes that weren't always propagating
152 exceptions.
153
154- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000155 context manager returns a value that cannot be converted to a bool.
156
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000157- Issue #4445: Replace "sizeof(PyBytesObject)" with
158 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
159 bytes instances. On a typical machine this saves 3 bytes of memory
160 (on average) per allocation of a bytes instance.
161
Christian Heimesa872de52008-12-05 08:26:55 +0000162- Issue #4533: File read operation was dreadfully slow due to a slowly
163 growing read buffer. Fixed by using the same growth rate algorithm as
164 Python 2.x.
165
Antoine Pitrou5504e892008-12-06 21:27:53 +0000166- Issue #4509: Various issues surrounding resize of bytearray objects to
167 which there are buffer exports (e.g. memoryview instances).
168
Georg Brandlf9734072008-12-07 15:30:06 +0000169- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
170 method on file objects with closefd=False. The file descriptor is still
171 kept open but the file object behaves like a closed file. The ``FileIO``
172 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000173
Antoine Pitroubc420402008-12-07 20:14:49 +0000174- Issue #4569: Interpreter crash when mutating a memoryview with an item size
175 larger than 1.
176
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000177- Issue #4748: Lambda generators no longer return a value.
178
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000179- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
180
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000181Library
182-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000183
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000184- Issue #5179: Fixed subprocess handle leak on failure on windows.
185
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000186- PEP 372: Added collections.OrderedDict().
187
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000188- The _asdict() for method for namedtuples now returns an OrderedDict().
189
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000190- configparser now defaults to using an ordered dictionary.
191
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000192- Issue #1733986: Fixed mmap crash in accessing elements of second map object
193 with same tagname but larger size than first map. (Windows)
194
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000195- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
196 overrun.
197
Tarek Ziadéf0721222009-02-28 10:16:43 +0000198- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
199 bdist_rpm command.
200
201- Issue #5378: added --quiet option to Distutils bdist_rpm command.
202
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000203- Issue #5052: make Distutils compatible with 2.3 again.
204
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000205- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
206 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000207
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000208- Issue #5287: Add exception handling around findCaller() call to help out
209 IronPython.
210
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000211- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
212 The file was resized to wrong size.
213
214- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
215
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000216- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000217 from the package_data and the data_files metadata.
218
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000219- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000220 support.TempdirManager, to avoid writing in the tests directory.
221
Tarek Ziadé68c50952009-02-13 23:04:17 +0000222- Issue #4524: distutils build_script command failed with --with-suffix=3.
223 Initial patch by Amaury Forgeot d'Arc.
224
Tarek Ziadé811d6242009-02-13 22:26:15 +0000225- Issue #2461: added tests for distutils.util
226
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000227- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
228 which inherited from numbers.py which did not have __slots__ defined. The
229 numbers hierarchy now has its own __slots__ declarations.
230
Antoine Pitroub353c122009-02-11 00:39:14 +0000231- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
232 encoding.
233
Thomas Heller465c8022009-02-10 18:59:04 +0000234- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
235 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
236
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000237- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
238 under NT and OS2. Patch by Philip Jenvey.
239
Brett Cannonbefb14f2009-02-10 02:10:16 +0000240- Issue #5128: Make compileall properly inspect bytecode to determine if needs
241 to be recreated. This avoids a timing hole thanks to the old reliance on the
242 ctime of the files involved.
243
Guilherme Polob681df42009-02-09 22:33:59 +0000244- Issue #5122: Synchronize tk load failure check to prevent a potential
245 deadlock.
246
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000247- Issue #1818: collections.namedtuple() now supports a keyword argument
248 'rename' which lets invalid fieldnames be automatically converted to
249 positional names in the form, _1, _2, ...
250
Guilherme Poloae098992009-02-09 16:44:24 +0000251- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
252
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000253- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
254 public documented method ``ZipImporter.get_filename()``.
255
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000256- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
257 the execution of packages by looking for and executing a ``__main__``
258 submodule when a package name is supplied. Initial patch by Andi
259 Vajda.
260
Guilherme Polo491aee22009-02-06 23:16:11 +0000261- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
262 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
263 Tkapp_Call when calling from a thread different than the one that created
264 the Tcl interpreter. Patch by Robert Hancock.
265
Eric Smith0e5b5622009-02-06 01:32:42 +0000266- Issue #4285: Change sys.version_info to be a named tuple. Patch by
267 Ross Light.
268
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000269- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000270 environment/Makefile. Patch by Douglas Greiman.
271
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000272- Issue #1276768: The verbose option was not used in the code of
273 distutils.file_util and distutils.dir_util.
274
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000275- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000276 --enabled-shared activated. Initial patch by Dave Peterson.
277
Guilherme Polo7f423952009-02-02 21:17:09 +0000278- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
279
Raymond Hettinger85602262009-02-03 04:19:10 +0000280- The shelve module now defaults to pickle protocol 3.
281
Brett Cannone61426e2009-01-30 01:31:34 +0000282- Fix a bug in the trace module where a bytes object from co_lnotab had its
283 items being passed through ord().
284
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000285- Issue #2047: shutil.move() could believe that its destination path was
286 inside its source path if it began with the same letters (e.g. "src" vs.
287 "src.new").
288
Guilherme Polo5f238482009-01-28 14:41:10 +0000289- Added the ttk module. See issue #2983: Ttk support for Tkinter.
290
Raymond Hettinger89e12962009-01-26 02:09:03 +0000291- Removed isSequenceType(), isMappingType, and isNumberType() from the
292 operator module; use the abstract base classes instead. Also removed
293 the repeat() function; use mul() instead.
294
Raymond Hettinger0f055172009-01-27 10:06:09 +0000295- Issue 5021: doctest.testfile() did not create __name__ and
296 collections.namedtuple() relied on __name__ being defined.
297
298- Backport importlib from Python 3.1. Only the import_module() function has
299 been backported to help facilitate transitions from 2.7 to 3.1.
300
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000301- Issue #1885: distutils. When running sdist with --formats=tar,gztar
302 the tar file was overriden by the gztar one.
303
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000304- Issue #4863: distutils.mwerkscompiler has been removed.
305
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000306- Added a new itertools functions: combinations_with_replacement()
307 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000308
Raymond Hettinger30729212009-02-12 06:28:27 +0000309- Issue 5032: added a step argument to itertools.count() and
310 allowed non-integer arguments.
311
Jesse Noller41faa542009-01-25 03:45:53 +0000312- Fix and properly document the multiprocessing module's logging
313 support, expose the internal levels and provide proper usage
314 examples.
315
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000316- Issue #1672332: fix unpickling of subnormal floats, which was
317 producing a ValueError on some platforms.
318
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000319- Issue #3881: Help Tcl to load even when started through the
320 unreadable local symlink to "Program Files" on Vista.
321
Martin v. Löwis59e47792009-01-24 14:10:07 +0000322- Issue #4710: Extract directories properly in the zipfile module;
323 allow adding directories to a zipfile.
324
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000325- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000326 --without-threads argument. When this occurs, _multiprocessing will
327 be disabled, and not compiled.
328
Antoine Pitrou08838b62009-01-21 00:55:13 +0000329- Issue #5008: When a file is opened in append mode with the new IO library,
330 do an explicit seek to the end of file (so that e.g. tell() returns the
331 file size rather than 0). This is consistent with the behaviour of the
332 traditional 2.x file object.
333
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000334- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
335 parameter was set.
336
Mark Dickinson8dd05142009-01-20 20:43:58 +0000337- Issue #4842: Always append a trailing 'L' when pickling longs using
338 pickle protocol 0. When reading, the 'L' is optional.
339
Brett Cannonafccd632009-01-20 02:21:27 +0000340- Add the importlib package.
341
Jesse Noller9a0fc972009-01-18 21:12:58 +0000342- Issue #4301: Patch the logging module to add processName support, remove
343 _check_logger_class from multiprocessing.
344
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000345- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000346 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000347
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000348- Issue #4959: inspect.formatargspec now works for keyword only arguments
349 without defaults.
350
Jesse Noller6214edd2009-01-19 16:23:53 +0000351- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
352 for *nix machines for negative handles and large int handles. Without this check
353 it is possible to segfault the interpreter.
354
Jesse Nollerb0516a62009-01-18 03:11:38 +0000355- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
356 in sharedctypes.py.
357
358- Issue #1225107: inspect.isclass() returned True for instances with a custom
359 __getattr__.
360
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000361- Issue #3826 and #4791: The socket module now closes the underlying socket
362 appropriately when it is being used via socket.makefile() objects
363 rather than delaying the close by waiting for garbage collection to do it.
364
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000365- Issue #1696199: Add collections.Counter() for rapid and convenient
366 counting.
367
Antoine Pitrou308705e2009-01-10 16:22:51 +0000368- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
369
Thomas Heller5e4e4272009-01-08 09:34:20 +0000370- Issue #4867: Fixed a crash in ctypes when passing a string to a
371 function without defining argtypes.
372
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000373- Issue #4272: Add an optional argument to the GzipFile constructor to override
374 the timestamp in the gzip stream. The default value remains the current time.
375 The information can be used by e.g. gunzip when decompressing. Patch by
376 Jacques Frechet.
377
Mark Dickinson315a20a2009-01-04 21:34:18 +0000378- Restore Python 2.3 compatibility for decimal.py.
379
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000380- Issue #3638: Remove functions from _tkinter module level that depend on
381 TkappObject to work with multiple threads.
382
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000383- Issue #4718: Adapt the wsgiref package so that it actually works with
384 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000385 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
386
Raymond Hettinger771ed762009-01-03 19:20:32 +0000387- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
388 to the decimal module.
389
Georg Brandl3a9b0622009-01-03 22:07:57 +0000390- Fractions.from_float() no longer loses precision for integers too big to
391 cast as floats.
392
Mark Dickinsonf9236412009-01-02 23:23:21 +0000393- Issue #4812: add missing underscore prefix to some internal-use-only
394 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
395
Georg Brandl3a9b0622009-01-03 22:07:57 +0000396- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
397 did unnecessary work in the common case where no key function was specified.
398
Georg Brandlb1441c72009-01-03 22:33:39 +0000399- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
400 the function is not a generator.
401
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000402- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
403 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000404
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000405- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000406 function. Original patch by Thomas Heller.
407
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000408- Issue #3767: Convert Tk object to string in tkColorChooser.
409
Martin v. Löwise354d782008-12-29 16:03:04 +0000410- Issue #3248: Allow placing ScrolledText in a PanedWindow.
411
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000412- Issue #4444: Allow assertRaises() to be used as a context handler, so that
413 the code under test can be written inline if more practical.
414
Georg Brandldb7b6b92009-01-01 15:53:14 +0000415- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
416 works as expected in the interactive environment.
417
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000418- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
419 Gabriel Genellina.
420
Antoine Pitrou180a3362008-12-14 16:36:46 +0000421- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
422 boundary.
423
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000424- Issue #4223: inspect.getsource() will now correctly display source code
425 for packages loaded via zipimport (or any other conformant PEP 302
426 loader). Original patch by Alexander Belopolsky.
427
428- Issue #4201: pdb can now access and display source code loaded via
429 zipimport (or any other conformant PEP 302 loader). Original patch by
430 Alexander Belopolsky.
431
432- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
433 302 conformant loader) will now work correctly in most cases (they
434 are still subject to the constraints that exist for all code running
435 from inside a module loaded via a PEP 302 loader and attempting to
436 perform IO operations based on __file__). Original patch by
437 Alexander Belopolsky.
438
439- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
440 allows backporting to maintenance branches. Original patch by
441 Alexander Belopolsky.
442
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000443- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
444 a non-ASCII letter.
445
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000446- Issue #4616: TarFile.utime(): Restore directory times on Windows.
447
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000448- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
449 codec cannot be found. This is for compatibility with the builtin behavior.
450
Facundo Batista708d5812008-12-11 04:20:07 +0000451- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
452 give correct results in the case where one argument is a quiet NaN
453 and the other is a finite number that requires rounding.
454
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000455- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
456 libs.
457
Georg Brandlf9734072008-12-07 15:30:06 +0000458- Added the subprocess.check_call_output() convenience function to get output
459 from a subprocess on success or raise an exception on error.
460
461- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
462 support unusual filenames (such as those containing semi-colons) in
463 Content-Disposition headers.
464
465- Issue #4384: Added logging integration with warnings module using
466 captureWarnings(). This change includes a NullHandler which does nothing;
467 it will be of use to library developers who want to avoid the "No handlers
468 could be found for logger XXX" message which can appear if the library user
469 doesn't configure logging.
470
471- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
472 exception.
473
Georg Brandleee31162008-12-07 15:15:22 +0000474- Issue #4529: fix the parser module's validation of try-except-finally
475 statements.
476
477- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
478 not a malformed option.
479
480- Added the subprocess.check_output() convenience function to get output
481 from a subprocess on success or raise an exception on error.
482
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000483- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
484 the corresponding tests now pass.
485
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000486- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
487 it was calling the wrong open() function.
488
Fred Drake9a0a65b2008-12-04 19:24:50 +0000489- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
490 support unusual filenames (such as those containing semi-colons) in
491 Content-Disposition headers.
492
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000493- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
494 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
495
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000496- Issue #5104: The socket module now raises OverflowError when 16-bit port and
497 protocol numbers are supplied outside the allowed 0-65536 range on bind()
498 and getservbyport().
499
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000500Tools/Demos
501-----------
502
Antoine Pitrou8a681222009-02-07 17:13:31 +0000503- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
504 and make it 2.6-compatible.
505
Guilherme Poloa7d27972009-01-28 16:06:51 +0000506- Ttk demos added in Demo/tkinter/ttk/
507
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000508- Issue #4677: add two list comprehension tests to pybench.
509
Georg Brandlb1441c72009-01-03 22:33:39 +0000510
511Build
512-----
513
Matthias Klose906785c2009-02-22 23:18:38 +0000514- Link the shared python library with $(MODLIBS).
515
Martin v. Löwis11f72102009-02-10 13:13:30 +0000516- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
517
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000518- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
519
Martin v. Löwise97637d2009-01-11 09:45:11 +0000520- Issue #4895: Use _strdup on Windows CE.
521
Georg Brandlb1441c72009-01-03 22:33:39 +0000522- Issue #4472: "configure --enable-shared" now works on OSX
523
524- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
525
526- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
527
528- Issue #4289: Remove Cancel button from AdvancedDlg.
529
530- Issue #1656675: Register a drop handler for .py* files on Windows.
531
532- Issue #4120: Exclude manifest from extension modules in VS2008.
533
534- Issue #4091: Install pythonxy.dll in system32 again.
535
536- Issue #4018: Disable "for me" installations on Vista.
537
538- Issue #3758: Add ``patchcheck`` build target to .PHONY.
539
540- Issue #4204: Fixed module build errors on FreeBSD 4.
541
542
543C-API
544-----
545
Mark Dickinson21776072009-02-10 16:13:25 +0000546- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
547 for negative arguments. Previously, it raised TypeError.
548
Georg Brandlb1441c72009-01-03 22:33:39 +0000549- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
550
551- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
552 the GIL is released, or owned by another thread.
553
554- Issue #4122: On Windows, fix a compilation error when using the
555 Py_UNICODE_ISSPACE macro in an extension module.
556
557
Mark Dickinsone675f082008-12-11 21:56:00 +0000558Extension Modules
559-----------------
560
Gregory P. Smith365a1862009-02-12 07:35:29 +0000561- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
562 supporting objects as input no matter how it was compiled (built in
563 implementations or external openssl library).
564
Mark Dickinson29500f62009-01-15 15:36:10 +0000565- Issue #4397: Fix occasional test_socket failure on OS X.
566
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000567- Issue #4279: Fix build of parsermodule under Cygwin.
568
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000569- Issue #4751: hashlib now releases the GIL when hashing large buffers
570 (with a hardwired threshold of 2048 bytes), allowing better parallelization
571 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
572
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000573- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
574
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000575- Issue #4738: Each zlib object now has a separate lock, allowing to compress
576 or decompress several streams at once on multi-CPU systems. Also, the GIL
577 is now released when computing the CRC of a large buffer. Patch by ebfe.
578
Georg Brandlb1441c72009-01-03 22:33:39 +0000579- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
580
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000581- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
582
Mark Dickinsone675f082008-12-11 21:56:00 +0000583- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
584 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000585
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000586- Issue #4583: array.array would not always prohibit resizing when a buffer
587 has been exported, resulting in an interpreter crash when accessing the
588 buffer.
589
Martin v. Löwis841edad2008-11-30 10:36:49 +0000590
Guilherme Polo9de29af2009-01-28 20:40:48 +0000591Tests
592-----
593
594- Issue #5083: New 'gui' resource for regrtest.
595
596
Brett Cannon7317c1e2008-11-25 19:19:17 +0000597Docs
598----
599
Georg Brandl52b92cc2008-05-25 09:43:03 +0000600
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000601**(For information about older versions, consult the HISTORY file.)**