blob: 54260466306bc7f3b8d29d971e6b2585d9fd2f24 [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
Mark Dickinsonc008a172009-02-01 13:59:22 +000015- Issue #1717: Removed builtin cmp() function, dropped tp_compare
16 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +000017 the type definition cmpfunc. The tp_compare slot has been renamed
18 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +000019
Raymond Hettingere8364232009-02-02 22:55:09 +000020- Issue 1242657: the __len__() and __length_hint__() calls in several tools
21 were suppressing all exceptions. These include list() and bytearray().
22
Mark Dickinson1124e712009-01-28 21:25:58 +000023- Issue #4707: round(x, n) now returns an integer if x is an integer.
24 Previously it returned a float.
25
Antoine Pitroub52ec782009-01-25 16:34:23 +000026- Issue #4753: By enabling a configure option named '--with-computed-gotos'
27 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
28 evaluation loop is compiled with a new dispatch mechanism which gives
29 speedups of up to 20%, depending on the system, on various benchmarks.
30
Antoine Pitrou81fabdb2009-01-22 10:11:36 +000031- Issue #4874: Most builtin decoders now reject unicode input.
32
Mark Dickinson9ffc0202009-01-20 20:45:53 +000033- Issue #4842: Don't allow trailing 'L' when constructing an integer
34 from a string.
35
Benjamin Peterson05e782f2009-01-19 15:15:02 +000036- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
37
Antoine Pitroue4bc7f62009-01-17 21:06:43 +000038- Issue #4838: When a module is deallocated, free the memory backing the
39 optional module state data.
40
Mark Dickinson8055afd2009-01-17 10:04:45 +000041- Issue #4910: Rename nb_long slot to nb_reserved, and change its
42 type to (void *).
43
Antoine Pitrou8d4e5052009-01-13 22:59:11 +000044- Issue #4935: The overflow checking code in the expandtabs() method common
45 to str, bytes and bytearray could be optimized away by the compiler, letting
46 the interpreter segfault instead of raising an error.
47
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +000048- Issue #3720: Fix a crash when an iterator modifies its class and removes its
49 __next__ method.
50
Mark Dickinsone5e298f2009-01-12 20:49:19 +000051- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
52 function no longer attempt to call the __long__ slot to convert an object
53 to an integer. Only the __int__ and __trunc__ slots are examined.
54
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +000055- Issue #4893: Use NT threading on CE.
56
Martin v. Löwisec59d042009-01-12 07:59:10 +000057- Issue #4915: Port sysmodule to Windows CE.
58
Antoine Pitrouab868312009-01-10 15:40:25 +000059- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
60 common cases are optimized thanks to a dedicated fast path and a moderate
61 amount of loop unrolling.
62
Antoine Pitrou14b78f52009-01-09 22:27:08 +000063- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
64 collecting the oldest generation) so that allocating lots of objects without
65 destroying them does not show quadratic performance. Based on a proposal by
66 Martin von Löwis at
67 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
68
Vinay Sajip6268cbc2009-01-21 00:19:28 +000069- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +000070 having been closed (for instance, a read() call could return some
71 previously buffered data). Patch by Dmitry Vasiliev.
72
Antoine Pitrou05608432009-01-09 18:53:14 +000073- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
74 flag to work properly. Furthermore, when specifying -u, the text stdout
75 and stderr streams have line-by-line buffering enabled (the default being
76 to buffer arbitrary chunks of data).
77
Raymond Hettinger35631532009-01-09 03:58:09 +000078- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
79 instead of ints (reducing its size from 4 to 8 times thereby reducing
80 Python's overall memory).
81
Antoine Pitroud35cbf62009-01-06 19:02:24 +000082- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
83 an existing .py counterpart, override the co_filename attributes of all
84 code objects if the original filename is obsolete (which can happen if the
85 file has been renamed, moved, or if it is accessed through different paths).
86 Patch by Ziga Seilnacht and Jean-Paul Calderone.
87
Antoine Pitrouc3b39242009-01-03 16:59:18 +000088- Issue #4580: Fix slicing of memoryviews when the item size is greater than
89 one byte. Also fixes the meaning of len() so that it returns the number of
90 items, rather than the size in bytes.
91
Martin v. Löwis5c88d812009-01-02 20:47:48 +000092- Issue #4075: Use OutputDebugStringW in Py_FatalError.
93
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +000094- Issue #4747: When the terminal does not use utf-8, executing a script with
95 non-ascii characters in its name could fail with a "SyntaxError: None" error.
96
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +000097- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +000098 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +000099
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000100- Issue #3680: Reference cycles created through a dict, set or deque iterator
101 did not get collected.
102
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000103- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
104 where the tp_hash and tp_dict slots are both NULL.
105
Georg Brandlccc47b62008-12-28 11:44:14 +0000106- Issue #4759: None is now allowed as the first argument of
107 bytearray.translate(). It was always allowed for bytes.translate().
108
Skip Montanaro80072cb2008-12-23 03:51:14 +0000109- Added test case to ensure attempts to read from a file opened for writing
110 fail.
111
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000112- Issue #3106: Speedup some comparisons (str/str and int/int).
113
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000114- Issue #2183: Simplify and optimize bytecode for list, dict and set
115 comprehensions. Original patch for list comprehensions by Neal Norwitz.
116
Antoine Pitrou621601a2008-12-17 23:18:19 +0000117- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
118 print elapsed times, not only when some objects are uncollectable /
119 unreachable. Original patch by Neil Schemenauer.
120
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000121- Issue #3439: Add a bit_length method to int.
122
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000123- Issue #2173: When getting device encoding, check that return value of
124 nl_langinfo is not the empty string. This was causing silent build
125 failures on OS X.
126
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000127- Issue #4597: Fixed several opcodes that weren't always propagating
128 exceptions.
129
130- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000131 context manager returns a value that cannot be converted to a bool.
132
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000133- Issue #4445: Replace "sizeof(PyBytesObject)" with
134 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
135 bytes instances. On a typical machine this saves 3 bytes of memory
136 (on average) per allocation of a bytes instance.
137
Christian Heimesa872de52008-12-05 08:26:55 +0000138- Issue #4533: File read operation was dreadfully slow due to a slowly
139 growing read buffer. Fixed by using the same growth rate algorithm as
140 Python 2.x.
141
Antoine Pitrou5504e892008-12-06 21:27:53 +0000142- Issue #4509: Various issues surrounding resize of bytearray objects to
143 which there are buffer exports (e.g. memoryview instances).
144
Georg Brandlf9734072008-12-07 15:30:06 +0000145- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
146 method on file objects with closefd=False. The file descriptor is still
147 kept open but the file object behaves like a closed file. The ``FileIO``
148 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000149
Antoine Pitroubc420402008-12-07 20:14:49 +0000150- Issue #4569: Interpreter crash when mutating a memoryview with an item size
151 larger than 1.
152
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000153- Issue #4748: Lambda generators no longer return a value.
154
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000155Library
156-------
157
Guilherme Polo7f423952009-02-02 21:17:09 +0000158- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
159
Brett Cannone61426e2009-01-30 01:31:34 +0000160- Fix a bug in the trace module where a bytes object from co_lnotab had its
161 items being passed through ord().
162
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000163- Issue #2047: shutil.move() could believe that its destination path was
164 inside its source path if it began with the same letters (e.g. "src" vs.
165 "src.new").
166
Guilherme Polo5f238482009-01-28 14:41:10 +0000167- Added the ttk module. See issue #2983: Ttk support for Tkinter.
168
Raymond Hettinger89e12962009-01-26 02:09:03 +0000169- Removed isSequenceType(), isMappingType, and isNumberType() from the
170 operator module; use the abstract base classes instead. Also removed
171 the repeat() function; use mul() instead.
172
Raymond Hettinger0f055172009-01-27 10:06:09 +0000173- Issue 5021: doctest.testfile() did not create __name__ and
174 collections.namedtuple() relied on __name__ being defined.
175
176- Backport importlib from Python 3.1. Only the import_module() function has
177 been backported to help facilitate transitions from 2.7 to 3.1.
178
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000179- Issue #1885: distutils. When running sdist with --formats=tar,gztar
180 the tar file was overriden by the gztar one.
181
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000182- Issue #4863: distutils.mwerkscompiler has been removed.
183
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000184- Added a new itertools functions: combinations_with_replacement()
185 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000186
Jesse Noller41faa542009-01-25 03:45:53 +0000187- Fix and properly document the multiprocessing module's logging
188 support, expose the internal levels and provide proper usage
189 examples.
190
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000191- Issue #1672332: fix unpickling of subnormal floats, which was
192 producing a ValueError on some platforms.
193
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000194- Issue #3881: Help Tcl to load even when started through the
195 unreadable local symlink to "Program Files" on Vista.
196
Martin v. Löwis59e47792009-01-24 14:10:07 +0000197- Issue #4710: Extract directories properly in the zipfile module;
198 allow adding directories to a zipfile.
199
Jesse Noller6fd47e22009-01-23 14:09:08 +0000200- Issue #3807: _multiprocessing build fails when configure is passed
201 --without-threads argument. When this occurs, _multiprocessing will
202 be disabled, and not compiled.
203
Antoine Pitrou08838b62009-01-21 00:55:13 +0000204- Issue #5008: When a file is opened in append mode with the new IO library,
205 do an explicit seek to the end of file (so that e.g. tell() returns the
206 file size rather than 0). This is consistent with the behaviour of the
207 traditional 2.x file object.
208
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000209- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
210 parameter was set.
211
Mark Dickinson8dd05142009-01-20 20:43:58 +0000212- Issue #4842: Always append a trailing 'L' when pickling longs using
213 pickle protocol 0. When reading, the 'L' is optional.
214
Brett Cannonafccd632009-01-20 02:21:27 +0000215- Add the importlib package.
216
Jesse Noller9a0fc972009-01-18 21:12:58 +0000217- Issue #4301: Patch the logging module to add processName support, remove
218 _check_logger_class from multiprocessing.
219
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000220- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000221 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000222
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000223- Issue #4959: inspect.formatargspec now works for keyword only arguments
224 without defaults.
225
Jesse Noller6214edd2009-01-19 16:23:53 +0000226- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
227 for *nix machines for negative handles and large int handles. Without this check
228 it is possible to segfault the interpreter.
229
Jesse Nollerb0516a62009-01-18 03:11:38 +0000230- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
231 in sharedctypes.py.
232
233- Issue #1225107: inspect.isclass() returned True for instances with a custom
234 __getattr__.
235
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000236- Issue #3826 and #4791: The socket module now closes the underlying socket
237 appropriately when it is being used via socket.makefile() objects
238 rather than delaying the close by waiting for garbage collection to do it.
239
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000240- Issue #1696199: Add collections.Counter() for rapid and convenient
241 counting.
242
Antoine Pitrou308705e2009-01-10 16:22:51 +0000243- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
244
Thomas Heller5e4e4272009-01-08 09:34:20 +0000245- Issue #4867: Fixed a crash in ctypes when passing a string to a
246 function without defining argtypes.
247
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000248- Issue #4272: Add an optional argument to the GzipFile constructor to override
249 the timestamp in the gzip stream. The default value remains the current time.
250 The information can be used by e.g. gunzip when decompressing. Patch by
251 Jacques Frechet.
252
Mark Dickinson315a20a2009-01-04 21:34:18 +0000253- Restore Python 2.3 compatibility for decimal.py.
254
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000255- Issue #3638: Remove functions from _tkinter module level that depend on
256 TkappObject to work with multiple threads.
257
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000258- Issue #4718: Adapt the wsgiref package so that it actually works with
259 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000260 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
261
Raymond Hettinger771ed762009-01-03 19:20:32 +0000262- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
263 to the decimal module.
264
Georg Brandl3a9b0622009-01-03 22:07:57 +0000265- Fractions.from_float() no longer loses precision for integers too big to
266 cast as floats.
267
Mark Dickinsonf9236412009-01-02 23:23:21 +0000268- Issue #4812: add missing underscore prefix to some internal-use-only
269 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
270
Georg Brandl3a9b0622009-01-03 22:07:57 +0000271- Issue 4790: The nsmallest() and nlargest() functions in the heapq module
272 did unnecessary work in the common case where no key function was specified.
273
Georg Brandlb1441c72009-01-03 22:33:39 +0000274- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
275 the function is not a generator.
276
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000277- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
278 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000279
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000280- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000281 function. Original patch by Thomas Heller.
282
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000283- Issue #3767: Convert Tk object to string in tkColorChooser.
284
Martin v. Löwise354d782008-12-29 16:03:04 +0000285- Issue #3248: Allow placing ScrolledText in a PanedWindow.
286
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000287- Issue #4444: Allow assertRaises() to be used as a context handler, so that
288 the code under test can be written inline if more practical.
289
Georg Brandldb7b6b92009-01-01 15:53:14 +0000290- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
291 works as expected in the interactive environment.
292
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000293- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
294 Gabriel Genellina.
295
Antoine Pitrou180a3362008-12-14 16:36:46 +0000296- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
297 boundary.
298
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000299- Issue #4223: inspect.getsource() will now correctly display source code
300 for packages loaded via zipimport (or any other conformant PEP 302
301 loader). Original patch by Alexander Belopolsky.
302
303- Issue #4201: pdb can now access and display source code loaded via
304 zipimport (or any other conformant PEP 302 loader). Original patch by
305 Alexander Belopolsky.
306
307- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
308 302 conformant loader) will now work correctly in most cases (they
309 are still subject to the constraints that exist for all code running
310 from inside a module loaded via a PEP 302 loader and attempting to
311 perform IO operations based on __file__). Original patch by
312 Alexander Belopolsky.
313
314- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
315 allows backporting to maintenance branches. Original patch by
316 Alexander Belopolsky.
317
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000318- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
319 a non-ASCII letter.
320
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000321- Issue #4616: TarFile.utime(): Restore directory times on Windows.
322
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000323- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
324 codec cannot be found. This is for compatibility with the builtin behavior.
325
Facundo Batista708d5812008-12-11 04:20:07 +0000326- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
327 give correct results in the case where one argument is a quiet NaN
328 and the other is a finite number that requires rounding.
329
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000330- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
331 libs.
332
Georg Brandlf9734072008-12-07 15:30:06 +0000333- Added the subprocess.check_call_output() convenience function to get output
334 from a subprocess on success or raise an exception on error.
335
336- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
337 support unusual filenames (such as those containing semi-colons) in
338 Content-Disposition headers.
339
340- Issue #4384: Added logging integration with warnings module using
341 captureWarnings(). This change includes a NullHandler which does nothing;
342 it will be of use to library developers who want to avoid the "No handlers
343 could be found for logger XXX" message which can appear if the library user
344 doesn't configure logging.
345
346- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
347 exception.
348
Georg Brandleee31162008-12-07 15:15:22 +0000349- Issue #4529: fix the parser module's validation of try-except-finally
350 statements.
351
352- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
353 not a malformed option.
354
355- Added the subprocess.check_output() convenience function to get output
356 from a subprocess on success or raise an exception on error.
357
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000358- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
359 the corresponding tests now pass.
360
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000361- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
362 it was calling the wrong open() function.
363
Fred Drake9a0a65b2008-12-04 19:24:50 +0000364- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
365 support unusual filenames (such as those containing semi-colons) in
366 Content-Disposition headers.
367
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000368- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
369 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
370
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000371Tools/Demos
372-----------
373
Guilherme Poloa7d27972009-01-28 16:06:51 +0000374- Ttk demos added in Demo/tkinter/ttk/
375
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000376- Issue #4677: add two list comprehension tests to pybench.
377
Georg Brandlb1441c72009-01-03 22:33:39 +0000378
379Build
380-----
381
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000382- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
383
Martin v. Löwise97637d2009-01-11 09:45:11 +0000384- Issue #4895: Use _strdup on Windows CE.
385
Georg Brandlb1441c72009-01-03 22:33:39 +0000386- Issue #4472: "configure --enable-shared" now works on OSX
387
388- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
389
390- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
391
392- Issue #4289: Remove Cancel button from AdvancedDlg.
393
394- Issue #1656675: Register a drop handler for .py* files on Windows.
395
396- Issue #4120: Exclude manifest from extension modules in VS2008.
397
398- Issue #4091: Install pythonxy.dll in system32 again.
399
400- Issue #4018: Disable "for me" installations on Vista.
401
402- Issue #3758: Add ``patchcheck`` build target to .PHONY.
403
404- Issue #4204: Fixed module build errors on FreeBSD 4.
405
406
407C-API
408-----
409
410- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
411
412- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
413 the GIL is released, or owned by another thread.
414
415- Issue #4122: On Windows, fix a compilation error when using the
416 Py_UNICODE_ISSPACE macro in an extension module.
417
418
Mark Dickinsone675f082008-12-11 21:56:00 +0000419Extension Modules
420-----------------
421
Mark Dickinson29500f62009-01-15 15:36:10 +0000422- Issue #4397: Fix occasional test_socket failure on OS X.
423
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000424- Issue #4279: Fix build of parsermodule under Cygwin.
425
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000426- Issue #4751: hashlib now releases the GIL when hashing large buffers
427 (with a hardwired threshold of 2048 bytes), allowing better parallelization
428 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
429
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000430- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
431
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000432- Issue #4738: Each zlib object now has a separate lock, allowing to compress
433 or decompress several streams at once on multi-CPU systems. Also, the GIL
434 is now released when computing the CRC of a large buffer. Patch by ebfe.
435
Georg Brandlb1441c72009-01-03 22:33:39 +0000436- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
437
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000438- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
439
Mark Dickinsone675f082008-12-11 21:56:00 +0000440- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
441 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000442
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000443- Issue #4583: array.array would not always prohibit resizing when a buffer
444 has been exported, resulting in an interpreter crash when accessing the
445 buffer.
446
Martin v. Löwis841edad2008-11-30 10:36:49 +0000447
Guilherme Polo9de29af2009-01-28 20:40:48 +0000448Tests
449-----
450
451- Issue #5083: New 'gui' resource for regrtest.
452
453
Brett Cannon7317c1e2008-11-25 19:19:17 +0000454Docs
455----
456
Georg Brandl52b92cc2008-05-25 09:43:03 +0000457
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000458**(For information about older versions, consult the HISTORY file.)**