blob: 91c94fff6a4a374a912ba3c37eb8fee700004eb9 [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Barry Warsaw97f005d2008-12-03 16:46:14 +00007What's New in Python 3.1 alpha 0
8================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00009
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +000010*Release date: XX-XXX-200X*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000011
12Core and Builtins
13-----------------
14
Eric Smith5e5c0db2009-02-20 14:25:03 +000015=======
16- Issue #5247: Improve error message when unknown format codes are
17 used when using str.format() with str, int, and float arguments.
18
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +000019- Issue #5249: time.strftime returned malformed string when format string
20 contained non ascii character on windows.
21
Antoine Pitrou79eee6b2009-02-13 14:01:05 +000022- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
23 rotating the object pointer by 4 bits to the right.
24
Mark Dickinson87ec0852009-02-09 17:15:59 +000025- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
26 it now forces its argument to double before testing for infinity.
27
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000028- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
29 returns a non-number type.
30
Benjamin Peterson87618552009-02-08 15:00:52 +000031- Issue #5182: Removed memoryview.__str__.
32
Mark Dickinsonc008a172009-02-01 13:59:22 +000033- Issue #1717: Removed builtin cmp() function, dropped tp_compare
34 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000035 the type definition cmpfunc. The tp_compare slot has been renamed
36 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000037
Raymond Hettingere8364232009-02-02 22:55:09 +000038- Issue 1242657: the __len__() and __length_hint__() calls in several tools
39 were suppressing all exceptions. These include list() and bytearray().
40
Mark Dickinson1124e712009-01-28 21:25:58 +000041- Issue #4707: round(x, n) now returns an integer if x is an integer.
42 Previously it returned a float.
43
Antoine Pitroub52ec782009-01-25 16:34:23 +000044- Issue #4753: By enabling a configure option named '--with-computed-gotos'
45 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
46 evaluation loop is compiled with a new dispatch mechanism which gives
47 speedups of up to 20%, depending on the system, on various benchmarks.
48
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000049- Issue #4874: Most builtin decoders now reject unicode input.
50
Mark Dickinson9ffc0202009-01-20 20:45:53 +000051- Issue #4842: Don't allow trailing 'L' when constructing an integer
52 from a string.
53
Benjamin Peterson05e782f2009-01-19 15:15:02 +000054- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
55
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000056- Issue #4838: When a module is deallocated, free the memory backing the
57 optional module state data.
58
Mark Dickinson8055afd2009-01-17 10:04:45 +000059- Issue #4910: Rename nb_long slot to nb_reserved, and change its
60 type to (void *).
61
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000062- Issue #4935: The overflow checking code in the expandtabs() method common
63 to str, bytes and bytearray could be optimized away by the compiler, letting
64 the interpreter segfault instead of raising an error.
65
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000066- Issue #3720: Fix a crash when an iterator modifies its class and removes its
67 __next__ method.
68
Mark Dickinsone5e298f2009-01-12 20:49:19 +000069- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
70 function no longer attempt to call the __long__ slot to convert an object
71 to an integer. Only the __int__ and __trunc__ slots are examined.
72
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000073- Issue #4893: Use NT threading on CE.
74
Martin v. Löwisec59d042009-01-12 07:59:10 +000075- Issue #4915: Port sysmodule to Windows CE.
76
Antoine Pitrouab868312009-01-10 15:40:25 +000077- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
78 common cases are optimized thanks to a dedicated fast path and a moderate
79 amount of loop unrolling.
80
Antoine Pitrou14b78f52009-01-09 22:27:08 +000081- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
82 collecting the oldest generation) so that allocating lots of objects without
83 destroying them does not show quadratic performance. Based on a proposal by
84 Martin von Löwis at
85 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
86
Vinay Sajip6268cbc2009-01-21 00:19:28 +000087- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000088 having been closed (for instance, a read() call could return some
89 previously buffered data). Patch by Dmitry Vasiliev.
90
Antoine Pitrou05608432009-01-09 18:53:14 +000091- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
92 flag to work properly. Furthermore, when specifying -u, the text stdout
93 and stderr streams have line-by-line buffering enabled (the default being
94 to buffer arbitrary chunks of data).
95
Raymond Hettinger35631532009-01-09 03:58:09 +000096- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
97 instead of ints (reducing its size from 4 to 8 times thereby reducing
98 Python's overall memory).
99
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000100- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
101 an existing .py counterpart, override the co_filename attributes of all
102 code objects if the original filename is obsolete (which can happen if the
103 file has been renamed, moved, or if it is accessed through different paths).
104 Patch by Ziga Seilnacht and Jean-Paul Calderone.
105
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000106- Issue #4580: Fix slicing of memoryviews when the item size is greater than
107 one byte. Also fixes the meaning of len() so that it returns the number of
108 items, rather than the size in bytes.
109
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000110- Issue #4075: Use OutputDebugStringW in Py_FatalError.
111
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000112- Issue #4747: When the terminal does not use utf-8, executing a script with
113 non-ascii characters in its name could fail with a "SyntaxError: None" error.
114
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000115- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000116 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000117
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000118- Issue #3680: Reference cycles created through a dict, set or deque iterator
119 did not get collected.
120
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000121- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
122 where the tp_hash and tp_dict slots are both NULL.
123
Georg Brandlccc47b62008-12-28 11:44:14 +0000124- Issue #4759: None is now allowed as the first argument of
125 bytearray.translate(). It was always allowed for bytes.translate().
126
Skip Montanaro80072cb2008-12-23 03:51:14 +0000127- Added test case to ensure attempts to read from a file opened for writing
128 fail.
129
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000130- Issue #3106: Speedup some comparisons (str/str and int/int).
131
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000132- Issue #2183: Simplify and optimize bytecode for list, dict and set
133 comprehensions. Original patch for list comprehensions by Neal Norwitz.
134
Antoine Pitrou621601a2008-12-17 23:18:19 +0000135- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
136 print elapsed times, not only when some objects are uncollectable /
137 unreachable. Original patch by Neil Schemenauer.
138
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000139- Issue #3439: Add a bit_length method to int.
140
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000141- Issue #2173: When getting device encoding, check that return value of
142 nl_langinfo is not the empty string. This was causing silent build
143 failures on OS X.
144
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000145- Issue #4597: Fixed several opcodes that weren't always propagating
146 exceptions.
147
148- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000149 context manager returns a value that cannot be converted to a bool.
150
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000151- Issue #4445: Replace "sizeof(PyBytesObject)" with
152 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
153 bytes instances. On a typical machine this saves 3 bytes of memory
154 (on average) per allocation of a bytes instance.
155
Christian Heimesa872de52008-12-05 08:26:55 +0000156- Issue #4533: File read operation was dreadfully slow due to a slowly
157 growing read buffer. Fixed by using the same growth rate algorithm as
158 Python 2.x.
159
Antoine Pitrou5504e892008-12-06 21:27:53 +0000160- Issue #4509: Various issues surrounding resize of bytearray objects to
161 which there are buffer exports (e.g. memoryview instances).
162
Georg Brandlf9734072008-12-07 15:30:06 +0000163- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
164 method on file objects with closefd=False. The file descriptor is still
165 kept open but the file object behaves like a closed file. The ``FileIO``
166 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000167
Antoine Pitroubc420402008-12-07 20:14:49 +0000168- Issue #4569: Interpreter crash when mutating a memoryview with an item size
169 larger than 1.
170
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000171- Issue #4748: Lambda generators no longer return a value.
172
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000173- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
174
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000175Library
176-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000177
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000178- PEP 372: Added collections.OrderedDict().
179
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000180- The _asdict() for method for namedtuples now returns an OrderedDict().
181
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000182- configparser now defaults to using an ordered dictionary.
183
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000184- Issue #1733986: Fixed mmap crash in accessing elements of second map object
185 with same tagname but larger size than first map. (Windows)
186
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000187- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
188 overrun.
189
Tarek Ziadéf0721222009-02-28 10:16:43 +0000190- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
191 bdist_rpm command.
192
193- Issue #5378: added --quiet option to Distutils bdist_rpm command.
194
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000195- Issue #5052: make Distutils compatible with 2.3 again.
196
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000197- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
198 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000199
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000200- Issue #5287: Add exception handling around findCaller() call to help out
201 IronPython.
202
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000203- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
204 The file was resized to wrong size.
205
206- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
207
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000208- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000209 from the package_data and the data_files metadata.
210
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000211- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000212 support.TempdirManager, to avoid writing in the tests directory.
213
Tarek Ziadé68c50952009-02-13 23:04:17 +0000214- Issue #4524: distutils build_script command failed with --with-suffix=3.
215 Initial patch by Amaury Forgeot d'Arc.
216
Tarek Ziadé811d6242009-02-13 22:26:15 +0000217- Issue #2461: added tests for distutils.util
218
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000219- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
220 which inherited from numbers.py which did not have __slots__ defined. The
221 numbers hierarchy now has its own __slots__ declarations.
222
Antoine Pitroub353c122009-02-11 00:39:14 +0000223- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
224 encoding.
225
Thomas Heller465c8022009-02-10 18:59:04 +0000226- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
227 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
228
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000229- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
230 under NT and OS2. Patch by Philip Jenvey.
231
Brett Cannonbefb14f2009-02-10 02:10:16 +0000232- Issue #5128: Make compileall properly inspect bytecode to determine if needs
233 to be recreated. This avoids a timing hole thanks to the old reliance on the
234 ctime of the files involved.
235
Guilherme Polob681df42009-02-09 22:33:59 +0000236- Issue #5122: Synchronize tk load failure check to prevent a potential
237 deadlock.
238
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000239- Issue #1818: collections.namedtuple() now supports a keyword argument
240 'rename' which lets invalid fieldnames be automatically converted to
241 positional names in the form, _1, _2, ...
242
Guilherme Poloae098992009-02-09 16:44:24 +0000243- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
244
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000245- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
246 public documented method ``ZipImporter.get_filename()``.
247
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000248- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
249 the execution of packages by looking for and executing a ``__main__``
250 submodule when a package name is supplied. Initial patch by Andi
251 Vajda.
252
Guilherme Polo491aee22009-02-06 23:16:11 +0000253- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
254 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
255 Tkapp_Call when calling from a thread different than the one that created
256 the Tcl interpreter. Patch by Robert Hancock.
257
Eric Smith0e5b5622009-02-06 01:32:42 +0000258- Issue #4285: Change sys.version_info to be a named tuple. Patch by
259 Ross Light.
260
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000261- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000262 environment/Makefile. Patch by Douglas Greiman.
263
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000264- Issue #1276768: The verbose option was not used in the code of
265 distutils.file_util and distutils.dir_util.
266
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000267- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000268 --enabled-shared activated. Initial patch by Dave Peterson.
269
Guilherme Polo7f423952009-02-02 21:17:09 +0000270- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
271
Raymond Hettinger85602262009-02-03 04:19:10 +0000272- The shelve module now defaults to pickle protocol 3.
273
Brett Cannone61426e2009-01-30 01:31:34 +0000274- Fix a bug in the trace module where a bytes object from co_lnotab had its
275 items being passed through ord().
276
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000277- Issue #2047: shutil.move() could believe that its destination path was
278 inside its source path if it began with the same letters (e.g. "src" vs.
279 "src.new").
280
Guilherme Polo5f238482009-01-28 14:41:10 +0000281- Added the ttk module. See issue #2983: Ttk support for Tkinter.
282
Raymond Hettinger89e12962009-01-26 02:09:03 +0000283- Removed isSequenceType(), isMappingType, and isNumberType() from the
284 operator module; use the abstract base classes instead. Also removed
285 the repeat() function; use mul() instead.
286
Raymond Hettinger0f055172009-01-27 10:06:09 +0000287- Issue 5021: doctest.testfile() did not create __name__ and
288 collections.namedtuple() relied on __name__ being defined.
289
290- Backport importlib from Python 3.1. Only the import_module() function has
291 been backported to help facilitate transitions from 2.7 to 3.1.
292
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000293- Issue #1885: distutils. When running sdist with --formats=tar,gztar
294 the tar file was overriden by the gztar one.
295
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000296- Issue #4863: distutils.mwerkscompiler has been removed.
297
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000298- Added a new itertools functions: combinations_with_replacement()
299 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000300
Raymond Hettinger30729212009-02-12 06:28:27 +0000301- Issue 5032: added a step argument to itertools.count() and
302 allowed non-integer arguments.
303
Jesse Noller41faa542009-01-25 03:45:53 +0000304- Fix and properly document the multiprocessing module's logging
305 support, expose the internal levels and provide proper usage
306 examples.
307
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000308- Issue #1672332: fix unpickling of subnormal floats, which was
309 producing a ValueError on some platforms.
310
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000311- Issue #3881: Help Tcl to load even when started through the
312 unreadable local symlink to "Program Files" on Vista.
313
Martin v. Löwis59e47792009-01-24 14:10:07 +0000314- Issue #4710: Extract directories properly in the zipfile module;
315 allow adding directories to a zipfile.
316
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000317- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000318 --without-threads argument. When this occurs, _multiprocessing will
319 be disabled, and not compiled.
320
Antoine Pitrou08838b62009-01-21 00:55:13 +0000321- Issue #5008: When a file is opened in append mode with the new IO library,
322 do an explicit seek to the end of file (so that e.g. tell() returns the
323 file size rather than 0). This is consistent with the behaviour of the
324 traditional 2.x file object.
325
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000326- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
327 parameter was set.
328
Mark Dickinson8dd05142009-01-20 20:43:58 +0000329- Issue #4842: Always append a trailing 'L' when pickling longs using
330 pickle protocol 0. When reading, the 'L' is optional.
331
Brett Cannonafccd632009-01-20 02:21:27 +0000332- Add the importlib package.
333
Jesse Noller9a0fc972009-01-18 21:12:58 +0000334- Issue #4301: Patch the logging module to add processName support, remove
335 _check_logger_class from multiprocessing.
336
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000337- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000338 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000339
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000340- Issue #4959: inspect.formatargspec now works for keyword only arguments
341 without defaults.
342
Jesse Noller6214edd2009-01-19 16:23:53 +0000343- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
344 for *nix machines for negative handles and large int handles. Without this check
345 it is possible to segfault the interpreter.
346
Jesse Nollerb0516a62009-01-18 03:11:38 +0000347- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
348 in sharedctypes.py.
349
350- Issue #1225107: inspect.isclass() returned True for instances with a custom
351 __getattr__.
352
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000353- Issue #3826 and #4791: The socket module now closes the underlying socket
354 appropriately when it is being used via socket.makefile() objects
355 rather than delaying the close by waiting for garbage collection to do it.
356
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000357- Issue #1696199: Add collections.Counter() for rapid and convenient
358 counting.
359
Antoine Pitrou308705e2009-01-10 16:22:51 +0000360- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
361
Thomas Heller5e4e4272009-01-08 09:34:20 +0000362- Issue #4867: Fixed a crash in ctypes when passing a string to a
363 function without defining argtypes.
364
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000365- Issue #4272: Add an optional argument to the GzipFile constructor to override
366 the timestamp in the gzip stream. The default value remains the current time.
367 The information can be used by e.g. gunzip when decompressing. Patch by
368 Jacques Frechet.
369
Mark Dickinson315a20a2009-01-04 21:34:18 +0000370- Restore Python 2.3 compatibility for decimal.py.
371
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000372- Issue #3638: Remove functions from _tkinter module level that depend on
373 TkappObject to work with multiple threads.
374
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000375- Issue #4718: Adapt the wsgiref package so that it actually works with
376 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000377 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
378
Raymond Hettinger771ed762009-01-03 19:20:32 +0000379- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
380 to the decimal module.
381
Georg Brandl3a9b0622009-01-03 22:07:57 +0000382- Fractions.from_float() no longer loses precision for integers too big to
383 cast as floats.
384
Mark Dickinsonf9236412009-01-02 23:23:21 +0000385- Issue #4812: add missing underscore prefix to some internal-use-only
386 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
387
Georg Brandl3a9b0622009-01-03 22:07:57 +0000388- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
389 did unnecessary work in the common case where no key function was specified.
390
Georg Brandlb1441c72009-01-03 22:33:39 +0000391- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
392 the function is not a generator.
393
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000394- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
395 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000396
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000397- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000398 function. Original patch by Thomas Heller.
399
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000400- Issue #3767: Convert Tk object to string in tkColorChooser.
401
Martin v. Löwise354d782008-12-29 16:03:04 +0000402- Issue #3248: Allow placing ScrolledText in a PanedWindow.
403
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000404- Issue #4444: Allow assertRaises() to be used as a context handler, so that
405 the code under test can be written inline if more practical.
406
Georg Brandldb7b6b92009-01-01 15:53:14 +0000407- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
408 works as expected in the interactive environment.
409
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000410- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
411 Gabriel Genellina.
412
Antoine Pitrou180a3362008-12-14 16:36:46 +0000413- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
414 boundary.
415
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000416- Issue #4223: inspect.getsource() will now correctly display source code
417 for packages loaded via zipimport (or any other conformant PEP 302
418 loader). Original patch by Alexander Belopolsky.
419
420- Issue #4201: pdb can now access and display source code loaded via
421 zipimport (or any other conformant PEP 302 loader). Original patch by
422 Alexander Belopolsky.
423
424- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
425 302 conformant loader) will now work correctly in most cases (they
426 are still subject to the constraints that exist for all code running
427 from inside a module loaded via a PEP 302 loader and attempting to
428 perform IO operations based on __file__). Original patch by
429 Alexander Belopolsky.
430
431- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
432 allows backporting to maintenance branches. Original patch by
433 Alexander Belopolsky.
434
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000435- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
436 a non-ASCII letter.
437
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000438- Issue #4616: TarFile.utime(): Restore directory times on Windows.
439
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000440- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
441 codec cannot be found. This is for compatibility with the builtin behavior.
442
Facundo Batista708d5812008-12-11 04:20:07 +0000443- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
444 give correct results in the case where one argument is a quiet NaN
445 and the other is a finite number that requires rounding.
446
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000447- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
448 libs.
449
Georg Brandlf9734072008-12-07 15:30:06 +0000450- Added the subprocess.check_call_output() convenience function to get output
451 from a subprocess on success or raise an exception on error.
452
453- 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
457- Issue #4384: Added logging integration with warnings module using
458 captureWarnings(). This change includes a NullHandler which does nothing;
459 it will be of use to library developers who want to avoid the "No handlers
460 could be found for logger XXX" message which can appear if the library user
461 doesn't configure logging.
462
463- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
464 exception.
465
Georg Brandleee31162008-12-07 15:15:22 +0000466- Issue #4529: fix the parser module's validation of try-except-finally
467 statements.
468
469- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
470 not a malformed option.
471
472- Added the subprocess.check_output() convenience function to get output
473 from a subprocess on success or raise an exception on error.
474
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000475- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
476 the corresponding tests now pass.
477
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000478- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
479 it was calling the wrong open() function.
480
Fred Drake9a0a65b2008-12-04 19:24:50 +0000481- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
482 support unusual filenames (such as those containing semi-colons) in
483 Content-Disposition headers.
484
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000485- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
486 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
487
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000488- Issue #5104: The socket module now raises OverflowError when 16-bit port and
489 protocol numbers are supplied outside the allowed 0-65536 range on bind()
490 and getservbyport().
491
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000492Tools/Demos
493-----------
494
Antoine Pitrou8a681222009-02-07 17:13:31 +0000495- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
496 and make it 2.6-compatible.
497
Guilherme Poloa7d27972009-01-28 16:06:51 +0000498- Ttk demos added in Demo/tkinter/ttk/
499
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000500- Issue #4677: add two list comprehension tests to pybench.
501
Georg Brandlb1441c72009-01-03 22:33:39 +0000502
503Build
504-----
505
Matthias Klose906785c2009-02-22 23:18:38 +0000506- Link the shared python library with $(MODLIBS).
507
Martin v. Löwis11f72102009-02-10 13:13:30 +0000508- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
509
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000510- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
511
Martin v. Löwise97637d2009-01-11 09:45:11 +0000512- Issue #4895: Use _strdup on Windows CE.
513
Georg Brandlb1441c72009-01-03 22:33:39 +0000514- Issue #4472: "configure --enable-shared" now works on OSX
515
516- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
517
518- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
519
520- Issue #4289: Remove Cancel button from AdvancedDlg.
521
522- Issue #1656675: Register a drop handler for .py* files on Windows.
523
524- Issue #4120: Exclude manifest from extension modules in VS2008.
525
526- Issue #4091: Install pythonxy.dll in system32 again.
527
528- Issue #4018: Disable "for me" installations on Vista.
529
530- Issue #3758: Add ``patchcheck`` build target to .PHONY.
531
532- Issue #4204: Fixed module build errors on FreeBSD 4.
533
534
535C-API
536-----
537
Mark Dickinson21776072009-02-10 16:13:25 +0000538- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
539 for negative arguments. Previously, it raised TypeError.
540
Georg Brandlb1441c72009-01-03 22:33:39 +0000541- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
542
543- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
544 the GIL is released, or owned by another thread.
545
546- Issue #4122: On Windows, fix a compilation error when using the
547 Py_UNICODE_ISSPACE macro in an extension module.
548
549
Mark Dickinsone675f082008-12-11 21:56:00 +0000550Extension Modules
551-----------------
552
Gregory P. Smith365a1862009-02-12 07:35:29 +0000553- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
554 supporting objects as input no matter how it was compiled (built in
555 implementations or external openssl library).
556
Mark Dickinson29500f62009-01-15 15:36:10 +0000557- Issue #4397: Fix occasional test_socket failure on OS X.
558
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000559- Issue #4279: Fix build of parsermodule under Cygwin.
560
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000561- Issue #4751: hashlib now releases the GIL when hashing large buffers
562 (with a hardwired threshold of 2048 bytes), allowing better parallelization
563 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
564
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000565- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
566
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000567- Issue #4738: Each zlib object now has a separate lock, allowing to compress
568 or decompress several streams at once on multi-CPU systems. Also, the GIL
569 is now released when computing the CRC of a large buffer. Patch by ebfe.
570
Georg Brandlb1441c72009-01-03 22:33:39 +0000571- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
572
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000573- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
574
Mark Dickinsone675f082008-12-11 21:56:00 +0000575- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
576 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000577
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000578- Issue #4583: array.array would not always prohibit resizing when a buffer
579 has been exported, resulting in an interpreter crash when accessing the
580 buffer.
581
Martin v. Löwis841edad2008-11-30 10:36:49 +0000582
Guilherme Polo9de29af2009-01-28 20:40:48 +0000583Tests
584-----
585
586- Issue #5083: New 'gui' resource for regrtest.
587
588
Brett Cannon7317c1e2008-11-25 19:19:17 +0000589Docs
590----
591
Georg Brandl52b92cc2008-05-25 09:43:03 +0000592
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000593**(For information about older versions, consult the HISTORY file.)**