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Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Barry Warsaw97f005d2008-12-03 16:46:14 +00007What's New in Python 3.1 alpha 0
8================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00009
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +000010*Release date: XX-XXX-200X*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +000011
12Core and Builtins
13-----------------
14
Mark Dickinson87ec0852009-02-09 17:15:59 +000015- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
16 it now forces its argument to double before testing for infinity.
17
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +000018- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
19 returns a non-number type.
20
Benjamin Peterson87618552009-02-08 15:00:52 +000021- Issue #5182: Removed memoryview.__str__.
22
Mark Dickinsonc008a172009-02-01 13:59:22 +000023- Issue #1717: Removed builtin cmp() function, dropped tp_compare
24 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000025 the type definition cmpfunc. The tp_compare slot has been renamed
26 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000027
Raymond Hettingere8364232009-02-02 22:55:09 +000028- Issue 1242657: the __len__() and __length_hint__() calls in several tools
29 were suppressing all exceptions. These include list() and bytearray().
30
Mark Dickinson1124e712009-01-28 21:25:58 +000031- Issue #4707: round(x, n) now returns an integer if x is an integer.
32 Previously it returned a float.
33
Antoine Pitroub52ec782009-01-25 16:34:23 +000034- Issue #4753: By enabling a configure option named '--with-computed-gotos'
35 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
36 evaluation loop is compiled with a new dispatch mechanism which gives
37 speedups of up to 20%, depending on the system, on various benchmarks.
38
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000039- Issue #4874: Most builtin decoders now reject unicode input.
40
Mark Dickinson9ffc0202009-01-20 20:45:53 +000041- Issue #4842: Don't allow trailing 'L' when constructing an integer
42 from a string.
43
Benjamin Peterson05e782f2009-01-19 15:15:02 +000044- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
45
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000046- Issue #4838: When a module is deallocated, free the memory backing the
47 optional module state data.
48
Mark Dickinson8055afd2009-01-17 10:04:45 +000049- Issue #4910: Rename nb_long slot to nb_reserved, and change its
50 type to (void *).
51
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000052- Issue #4935: The overflow checking code in the expandtabs() method common
53 to str, bytes and bytearray could be optimized away by the compiler, letting
54 the interpreter segfault instead of raising an error.
55
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000056- Issue #3720: Fix a crash when an iterator modifies its class and removes its
57 __next__ method.
58
Mark Dickinsone5e298f2009-01-12 20:49:19 +000059- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
60 function no longer attempt to call the __long__ slot to convert an object
61 to an integer. Only the __int__ and __trunc__ slots are examined.
62
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000063- Issue #4893: Use NT threading on CE.
64
Martin v. Löwisec59d042009-01-12 07:59:10 +000065- Issue #4915: Port sysmodule to Windows CE.
66
Antoine Pitrouab868312009-01-10 15:40:25 +000067- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
68 common cases are optimized thanks to a dedicated fast path and a moderate
69 amount of loop unrolling.
70
Antoine Pitrou14b78f52009-01-09 22:27:08 +000071- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
72 collecting the oldest generation) so that allocating lots of objects without
73 destroying them does not show quadratic performance. Based on a proposal by
74 Martin von Löwis at
75 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
76
Vinay Sajip6268cbc2009-01-21 00:19:28 +000077- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000078 having been closed (for instance, a read() call could return some
79 previously buffered data). Patch by Dmitry Vasiliev.
80
Antoine Pitrou05608432009-01-09 18:53:14 +000081- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
82 flag to work properly. Furthermore, when specifying -u, the text stdout
83 and stderr streams have line-by-line buffering enabled (the default being
84 to buffer arbitrary chunks of data).
85
Raymond Hettinger35631532009-01-09 03:58:09 +000086- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
87 instead of ints (reducing its size from 4 to 8 times thereby reducing
88 Python's overall memory).
89
Antoine Pitroud35cbf62009-01-06 19:02:24 +000090- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
91 an existing .py counterpart, override the co_filename attributes of all
92 code objects if the original filename is obsolete (which can happen if the
93 file has been renamed, moved, or if it is accessed through different paths).
94 Patch by Ziga Seilnacht and Jean-Paul Calderone.
95
Antoine Pitrouc3b39242009-01-03 16:59:18 +000096- Issue #4580: Fix slicing of memoryviews when the item size is greater than
97 one byte. Also fixes the meaning of len() so that it returns the number of
98 items, rather than the size in bytes.
99
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000100- Issue #4075: Use OutputDebugStringW in Py_FatalError.
101
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000102- Issue #4747: When the terminal does not use utf-8, executing a script with
103 non-ascii characters in its name could fail with a "SyntaxError: None" error.
104
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000105- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000106 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000107
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000108- Issue #3680: Reference cycles created through a dict, set or deque iterator
109 did not get collected.
110
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000111- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
112 where the tp_hash and tp_dict slots are both NULL.
113
Georg Brandlccc47b62008-12-28 11:44:14 +0000114- Issue #4759: None is now allowed as the first argument of
115 bytearray.translate(). It was always allowed for bytes.translate().
116
Skip Montanaro80072cb2008-12-23 03:51:14 +0000117- Added test case to ensure attempts to read from a file opened for writing
118 fail.
119
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000120- Issue #3106: Speedup some comparisons (str/str and int/int).
121
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000122- Issue #2183: Simplify and optimize bytecode for list, dict and set
123 comprehensions. Original patch for list comprehensions by Neal Norwitz.
124
Antoine Pitrou621601a2008-12-17 23:18:19 +0000125- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
126 print elapsed times, not only when some objects are uncollectable /
127 unreachable. Original patch by Neil Schemenauer.
128
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000129- Issue #3439: Add a bit_length method to int.
130
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000131- Issue #2173: When getting device encoding, check that return value of
132 nl_langinfo is not the empty string. This was causing silent build
133 failures on OS X.
134
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000135- Issue #4597: Fixed several opcodes that weren't always propagating
136 exceptions.
137
138- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000139 context manager returns a value that cannot be converted to a bool.
140
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000141- Issue #4445: Replace "sizeof(PyBytesObject)" with
142 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
143 bytes instances. On a typical machine this saves 3 bytes of memory
144 (on average) per allocation of a bytes instance.
145
Christian Heimesa872de52008-12-05 08:26:55 +0000146- Issue #4533: File read operation was dreadfully slow due to a slowly
147 growing read buffer. Fixed by using the same growth rate algorithm as
148 Python 2.x.
149
Antoine Pitrou5504e892008-12-06 21:27:53 +0000150- Issue #4509: Various issues surrounding resize of bytearray objects to
151 which there are buffer exports (e.g. memoryview instances).
152
Georg Brandlf9734072008-12-07 15:30:06 +0000153- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
154 method on file objects with closefd=False. The file descriptor is still
155 kept open but the file object behaves like a closed file. The ``FileIO``
156 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000157
Antoine Pitroubc420402008-12-07 20:14:49 +0000158- Issue #4569: Interpreter crash when mutating a memoryview with an item size
159 larger than 1.
160
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000161- Issue #4748: Lambda generators no longer return a value.
162
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000163Library
164-------
165
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000166- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
167 under NT and OS2. Patch by Philip Jenvey.
168
Brett Cannonbefb14f2009-02-10 02:10:16 +0000169- Issue #5128: Make compileall properly inspect bytecode to determine if needs
170 to be recreated. This avoids a timing hole thanks to the old reliance on the
171 ctime of the files involved.
172
Guilherme Polob681df42009-02-09 22:33:59 +0000173- Issue #5122: Synchronize tk load failure check to prevent a potential
174 deadlock.
175
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000176- Issue #1818: collections.namedtuple() now supports a keyword argument
177 'rename' which lets invalid fieldnames be automatically converted to
178 positional names in the form, _1, _2, ...
179
Guilherme Poloae098992009-02-09 16:44:24 +0000180- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
181
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000182- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
183 public documented method ``ZipImporter.get_filename()``.
184
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000185- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
186 the execution of packages by looking for and executing a ``__main__``
187 submodule when a package name is supplied. Initial patch by Andi
188 Vajda.
189
Guilherme Polo491aee22009-02-06 23:16:11 +0000190- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
191 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
192 Tkapp_Call when calling from a thread different than the one that created
193 the Tcl interpreter. Patch by Robert Hancock.
194
Eric Smith0e5b5622009-02-06 01:32:42 +0000195- Issue #4285: Change sys.version_info to be a named tuple. Patch by
196 Ross Light.
197
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000198- Issue #1520877: Now distutils.sysconfig reads $AR from the
199 environment/Makefile. Patch by Douglas Greiman.
200
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000201- Issue #1276768: The verbose option was not used in the code of
202 distutils.file_util and distutils.dir_util.
203
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000204- Issue #5132: Fixed trouble building extensions under Solaris with
205 --enabled-shared activated. Initial patch by Dave Peterson.
206
Guilherme Polo7f423952009-02-02 21:17:09 +0000207- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
208
Raymond Hettinger85602262009-02-03 04:19:10 +0000209- The shelve module now defaults to pickle protocol 3.
210
Brett Cannone61426e2009-01-30 01:31:34 +0000211- Fix a bug in the trace module where a bytes object from co_lnotab had its
212 items being passed through ord().
213
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000214- Issue #2047: shutil.move() could believe that its destination path was
215 inside its source path if it began with the same letters (e.g. "src" vs.
216 "src.new").
217
Guilherme Polo5f238482009-01-28 14:41:10 +0000218- Added the ttk module. See issue #2983: Ttk support for Tkinter.
219
Raymond Hettinger89e12962009-01-26 02:09:03 +0000220- Removed isSequenceType(), isMappingType, and isNumberType() from the
221 operator module; use the abstract base classes instead. Also removed
222 the repeat() function; use mul() instead.
223
Raymond Hettinger0f055172009-01-27 10:06:09 +0000224- Issue 5021: doctest.testfile() did not create __name__ and
225 collections.namedtuple() relied on __name__ being defined.
226
227- Backport importlib from Python 3.1. Only the import_module() function has
228 been backported to help facilitate transitions from 2.7 to 3.1.
229
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000230- Issue #1885: distutils. When running sdist with --formats=tar,gztar
231 the tar file was overriden by the gztar one.
232
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000233- Issue #4863: distutils.mwerkscompiler has been removed.
234
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000235- Added a new itertools functions: combinations_with_replacement()
236 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000237
Jesse Noller41faa542009-01-25 03:45:53 +0000238- Fix and properly document the multiprocessing module's logging
239 support, expose the internal levels and provide proper usage
240 examples.
241
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000242- Issue #1672332: fix unpickling of subnormal floats, which was
243 producing a ValueError on some platforms.
244
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000245- Issue #3881: Help Tcl to load even when started through the
246 unreadable local symlink to "Program Files" on Vista.
247
Martin v. Löwis59e47792009-01-24 14:10:07 +0000248- Issue #4710: Extract directories properly in the zipfile module;
249 allow adding directories to a zipfile.
250
Jesse Noller6fd47e22009-01-23 14:09:08 +0000251- Issue #3807: _multiprocessing build fails when configure is passed
252 --without-threads argument. When this occurs, _multiprocessing will
253 be disabled, and not compiled.
254
Antoine Pitrou08838b62009-01-21 00:55:13 +0000255- Issue #5008: When a file is opened in append mode with the new IO library,
256 do an explicit seek to the end of file (so that e.g. tell() returns the
257 file size rather than 0). This is consistent with the behaviour of the
258 traditional 2.x file object.
259
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000260- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
261 parameter was set.
262
Mark Dickinson8dd05142009-01-20 20:43:58 +0000263- Issue #4842: Always append a trailing 'L' when pickling longs using
264 pickle protocol 0. When reading, the 'L' is optional.
265
Brett Cannonafccd632009-01-20 02:21:27 +0000266- Add the importlib package.
267
Jesse Noller9a0fc972009-01-18 21:12:58 +0000268- Issue #4301: Patch the logging module to add processName support, remove
269 _check_logger_class from multiprocessing.
270
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000271- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000272 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000273
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000274- Issue #4959: inspect.formatargspec now works for keyword only arguments
275 without defaults.
276
Jesse Noller6214edd2009-01-19 16:23:53 +0000277- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
278 for *nix machines for negative handles and large int handles. Without this check
279 it is possible to segfault the interpreter.
280
Jesse Nollerb0516a62009-01-18 03:11:38 +0000281- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
282 in sharedctypes.py.
283
284- Issue #1225107: inspect.isclass() returned True for instances with a custom
285 __getattr__.
286
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000287- Issue #3826 and #4791: The socket module now closes the underlying socket
288 appropriately when it is being used via socket.makefile() objects
289 rather than delaying the close by waiting for garbage collection to do it.
290
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000291- Issue #1696199: Add collections.Counter() for rapid and convenient
292 counting.
293
Antoine Pitrou308705e2009-01-10 16:22:51 +0000294- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
295
Thomas Heller5e4e4272009-01-08 09:34:20 +0000296- Issue #4867: Fixed a crash in ctypes when passing a string to a
297 function without defining argtypes.
298
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000299- Issue #4272: Add an optional argument to the GzipFile constructor to override
300 the timestamp in the gzip stream. The default value remains the current time.
301 The information can be used by e.g. gunzip when decompressing. Patch by
302 Jacques Frechet.
303
Mark Dickinson315a20a2009-01-04 21:34:18 +0000304- Restore Python 2.3 compatibility for decimal.py.
305
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000306- Issue #3638: Remove functions from _tkinter module level that depend on
307 TkappObject to work with multiple threads.
308
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000309- Issue #4718: Adapt the wsgiref package so that it actually works with
310 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000311 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
312
Raymond Hettinger771ed762009-01-03 19:20:32 +0000313- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
314 to the decimal module.
315
Georg Brandl3a9b0622009-01-03 22:07:57 +0000316- Fractions.from_float() no longer loses precision for integers too big to
317 cast as floats.
318
Mark Dickinsonf9236412009-01-02 23:23:21 +0000319- Issue #4812: add missing underscore prefix to some internal-use-only
320 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
321
Georg Brandl3a9b0622009-01-03 22:07:57 +0000322- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
323 did unnecessary work in the common case where no key function was specified.
324
Georg Brandlb1441c72009-01-03 22:33:39 +0000325- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
326 the function is not a generator.
327
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000328- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
329 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000330
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000331- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000332 function. Original patch by Thomas Heller.
333
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000334- Issue #3767: Convert Tk object to string in tkColorChooser.
335
Martin v. Löwise354d782008-12-29 16:03:04 +0000336- Issue #3248: Allow placing ScrolledText in a PanedWindow.
337
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000338- Issue #4444: Allow assertRaises() to be used as a context handler, so that
339 the code under test can be written inline if more practical.
340
Georg Brandldb7b6b92009-01-01 15:53:14 +0000341- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
342 works as expected in the interactive environment.
343
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000344- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
345 Gabriel Genellina.
346
Antoine Pitrou180a3362008-12-14 16:36:46 +0000347- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
348 boundary.
349
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000350- Issue #4223: inspect.getsource() will now correctly display source code
351 for packages loaded via zipimport (or any other conformant PEP 302
352 loader). Original patch by Alexander Belopolsky.
353
354- Issue #4201: pdb can now access and display source code loaded via
355 zipimport (or any other conformant PEP 302 loader). Original patch by
356 Alexander Belopolsky.
357
358- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
359 302 conformant loader) will now work correctly in most cases (they
360 are still subject to the constraints that exist for all code running
361 from inside a module loaded via a PEP 302 loader and attempting to
362 perform IO operations based on __file__). Original patch by
363 Alexander Belopolsky.
364
365- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
366 allows backporting to maintenance branches. Original patch by
367 Alexander Belopolsky.
368
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000369- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
370 a non-ASCII letter.
371
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000372- Issue #4616: TarFile.utime(): Restore directory times on Windows.
373
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000374- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
375 codec cannot be found. This is for compatibility with the builtin behavior.
376
Facundo Batista708d5812008-12-11 04:20:07 +0000377- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
378 give correct results in the case where one argument is a quiet NaN
379 and the other is a finite number that requires rounding.
380
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000381- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
382 libs.
383
Georg Brandlf9734072008-12-07 15:30:06 +0000384- Added the subprocess.check_call_output() convenience function to get output
385 from a subprocess on success or raise an exception on error.
386
387- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
388 support unusual filenames (such as those containing semi-colons) in
389 Content-Disposition headers.
390
391- Issue #4384: Added logging integration with warnings module using
392 captureWarnings(). This change includes a NullHandler which does nothing;
393 it will be of use to library developers who want to avoid the "No handlers
394 could be found for logger XXX" message which can appear if the library user
395 doesn't configure logging.
396
397- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
398 exception.
399
Georg Brandleee31162008-12-07 15:15:22 +0000400- Issue #4529: fix the parser module's validation of try-except-finally
401 statements.
402
403- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
404 not a malformed option.
405
406- Added the subprocess.check_output() convenience function to get output
407 from a subprocess on success or raise an exception on error.
408
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000409- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
410 the corresponding tests now pass.
411
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000412- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
413 it was calling the wrong open() function.
414
Fred Drake9a0a65b2008-12-04 19:24:50 +0000415- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
416 support unusual filenames (such as those containing semi-colons) in
417 Content-Disposition headers.
418
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000419- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
420 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
421
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000422- Issue #5104: The socket module now raises OverflowError when 16-bit port and
423 protocol numbers are supplied outside the allowed 0-65536 range on bind()
424 and getservbyport().
425
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000426Tools/Demos
427-----------
428
Antoine Pitrou8a681222009-02-07 17:13:31 +0000429- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
430 and make it 2.6-compatible.
431
Guilherme Poloa7d27972009-01-28 16:06:51 +0000432- Ttk demos added in Demo/tkinter/ttk/
433
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000434- Issue #4677: add two list comprehension tests to pybench.
435
Georg Brandlb1441c72009-01-03 22:33:39 +0000436
437Build
438-----
439
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000440- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
441
Martin v. Löwise97637d2009-01-11 09:45:11 +0000442- Issue #4895: Use _strdup on Windows CE.
443
Georg Brandlb1441c72009-01-03 22:33:39 +0000444- Issue #4472: "configure --enable-shared" now works on OSX
445
446- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
447
448- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
449
450- Issue #4289: Remove Cancel button from AdvancedDlg.
451
452- Issue #1656675: Register a drop handler for .py* files on Windows.
453
454- Issue #4120: Exclude manifest from extension modules in VS2008.
455
456- Issue #4091: Install pythonxy.dll in system32 again.
457
458- Issue #4018: Disable "for me" installations on Vista.
459
460- Issue #3758: Add ``patchcheck`` build target to .PHONY.
461
462- Issue #4204: Fixed module build errors on FreeBSD 4.
463
464
465C-API
466-----
467
468- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
469
470- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
471 the GIL is released, or owned by another thread.
472
473- Issue #4122: On Windows, fix a compilation error when using the
474 Py_UNICODE_ISSPACE macro in an extension module.
475
476
Mark Dickinsone675f082008-12-11 21:56:00 +0000477Extension Modules
478-----------------
479
Mark Dickinson29500f62009-01-15 15:36:10 +0000480- Issue #4397: Fix occasional test_socket failure on OS X.
481
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000482- Issue #4279: Fix build of parsermodule under Cygwin.
483
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000484- Issue #4751: hashlib now releases the GIL when hashing large buffers
485 (with a hardwired threshold of 2048 bytes), allowing better parallelization
486 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
487
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000488- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
489
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000490- Issue #4738: Each zlib object now has a separate lock, allowing to compress
491 or decompress several streams at once on multi-CPU systems. Also, the GIL
492 is now released when computing the CRC of a large buffer. Patch by ebfe.
493
Georg Brandlb1441c72009-01-03 22:33:39 +0000494- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
495
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000496- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
497
Mark Dickinsone675f082008-12-11 21:56:00 +0000498- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
499 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000500
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000501- Issue #4583: array.array would not always prohibit resizing when a buffer
502 has been exported, resulting in an interpreter crash when accessing the
503 buffer.
504
Martin v. Löwis841edad2008-11-30 10:36:49 +0000505
Guilherme Polo9de29af2009-01-28 20:40:48 +0000506Tests
507-----
508
509- Issue #5083: New 'gui' resource for regrtest.
510
511
Brett Cannon7317c1e2008-11-25 19:19:17 +0000512Docs
513----
514
Georg Brandl52b92cc2008-05-25 09:43:03 +0000515
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000516**(For information about older versions, consult the HISTORY file.)**