blob: 608e9a89c88d07889ea542d2eb975b80baa92839 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +000015- Issue #6750: A text file opened with io.open() could duplicate its output
16 when writing from multiple threads at the same time.
17
Benjamin Peterson14327712009-08-15 13:23:05 +000018- Issue #6707: dir() on an uninitialized module caused a crash.
19
Georg Brandl953152f2009-07-22 12:03:59 +000020- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
21
Raymond Hettingere805ecc2009-07-27 20:16:37 +000022- Issue #6573: set.union() stopped processing inputs if an instance of self
23 occurred in the argument chain.
24
R. David Murray046f7232009-07-19 02:22:05 +000025- Issue #6070: On posix platforms import no longer copies the execute bit
26 from the .py file to the .pyc file if it is set.
27
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000028- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
29
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000030- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
31 object, and not an int. Fix the corresponding error message, and the
32 documentation.
33
Benjamin Petersonf1664ae2009-07-01 01:28:55 +000034- The deprecated PyCObject has been removed.
35
Mark Dickinson835a6c82009-06-30 15:45:17 +000036- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
37 This fixes a build failure on HP-UX: int32_t and uint32_t are
38 defined in inttypes.h instead of stdint.h on that platform.
39
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +000040- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +000041 the 'surrogateescape' error handler, a string which contains unpaired
42 surrogates.
43
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +000044- Issue #4856: Remove checks for win NT.
45
Benjamin Peterson466a7822009-07-02 21:44:01 +000046C-API
47-----
48
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000049- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
50 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
51 should used for accessing the d_type and d_name members of structures
52 using PyDescr_COMMON.
53
54- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +000055
Benjamin Peterson466a7822009-07-02 21:44:01 +000056- The code flags for old __future__ features are now available again.
57
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +000058- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
59 PyCode_Addr2Line().
60
61- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
62 object at a specified file, function, and line number.
63
64- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
65 ``const char *`` as the string is stored beyond the call.
66
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000067
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000068Library
69-------
70
Brett Cannonde4ebfe2009-08-30 19:53:48 +000071- When the globals past to importlib.__import__() has __package__ set to None,
72 fall back to computing what __package__ should be instead of giving up.
73
Brett Cannon6afbaef2009-08-30 19:08:58 +000074- Raise a TypeError when the name of a module to be imported for
75 importlib.__import__ is not a string (was raising an
76 AttributeError before).
77
Brett Cannon9e0e1a62009-08-30 18:28:46 +000078- Allow the fromlist passed into importlib.__import__ to be any iterable.
79
Brett Cannon4d75fc12009-08-30 03:47:36 +000080- Have importlib raise ImportError if None is found in sys.modules.
81
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +000082- Issue #6054: Do not normalize stored pathnames in tarfile.
83
Mark Dickinsond314e1b2009-08-28 13:39:53 +000084- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
85 payloads are now ordered by integer value rather than lexicographically.
86
Guilherme Polobcd03df2009-08-18 15:35:57 +000087- Issue #1356969: Add missing info methods in tix.HList.
88
89- Issue #1522587: New constants and methods for the tix.Grid widget.
90
91- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
92
93- Issue #1119673: Do not override tkinter.Text methods when creating a
94 ScrolledText.
95
Gregory P. Smith01099702009-08-16 18:58:46 +000096- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
97
Guilherme Poloc3b2ae42009-08-16 14:46:16 +000098- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
99 the xview* and yview* methods.
100
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000101- Issue #6629: Fix a data corruption issue in the new I/O library, which could
102 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
103 "wb+" mode) after having buffered a certain amount of data for reading. This
104 bug was not present in the pure Python implementation.
105
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000106- Issue #6622: Fix "local variable 'secret' referenced before
107 assignment" bug in POP3.apop.
108
Mark Dickinson45f799f2009-08-02 20:08:54 +0000109- Issue #2715: Remove remnants of Carbon.File from binhex module.
110
Mark Dickinson345adc42009-08-02 10:14:23 +0000111- Issue #6595: The Decimal constructor now allows arbitrary Unicode
112 decimal digits in input, as recommended by the standard. Previously
113 it was restricted to accepting [0-9].
114
Jack Diederich36596a32009-07-26 22:23:04 +0000115- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
116 DO/DONT correctly.
117
Senthil Kumaran67305382009-07-26 04:46:00 +0000118- Issue #1424152: Fix for http.client, urllib.request to support SSL while
119 working through proxy. Original patch by Christopher Li, changes made by
120 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000121
Brett Cannon69194272009-07-20 04:23:48 +0000122- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
123 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
124 and PyPycLoader inherit from this class and provide implementations in
125 relation to other methods required by the ABCs.
126
Brett Cannon64ef00f2009-07-20 03:19:18 +0000127- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
128 the documentation said it did even though the code in PyLoader relied on the
129 abstract method required by ResourceLoader.
130
Mark Dickinson85424c92009-07-18 14:41:42 +0000131- Issue #6431: Make Fraction type return NotImplemented when it doesn't
132 know how to handle a comparison without loss of precision. Also add
133 correct handling of infinities and nans for comparisons with float.
134
Antoine Pitrouf3637322009-08-06 21:00:37 +0000135- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000136
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000137- Issue #6358: The exit status of a command started with os.popen() was
138 reported differently than it did with python 2.x.
139
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000140- Issue #6323: The pdb debugger did not exit when running a script with a
141 syntax error.
142
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000143- Issue #3392: The subprocess communicate() method no longer fails in select()
144 when file descriptors are large; communicate() now uses poll() when possible.
145
Antoine Pitrou54923952009-07-01 14:53:06 +0000146- Issue #6369: Fix an RLE decompression bug in the binhex module.
147
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000148- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
149
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000150- The deprecated function string.maketrans has been removed.
151
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000152- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
153 sys.path.
154
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000155- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
156
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000157Extension Modules
158-----------------
159
Brett Cannon2f827382009-08-13 19:58:01 +0000160- Fix a segfault that could be triggered by expat with specially formed input.
161
Mark Dickinson1f268282009-07-28 17:22:36 +0000162- Issue #6561: '\d' in a regex now matches only characters with
163 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
164 matched characters with category 'No'.
165
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000166- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000167 failing due to the resize restriction in-place when the object has exported
168 buffers.
169
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000170- Issue #2389: Array objects are now pickled in a portable manner.
171
Martin v. Löwis95c46012009-06-28 09:36:14 +0000172Build
173-----
174
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000175- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
176
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000177- Issue 4601: 'make install' did not set the appropriate permissions on
178 directories.
179
Martin v. Löwis95c46012009-06-28 09:36:14 +0000180- Issue 5390: Add uninstall icon independent of whether file
181 extensions are installed.
182
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000183Documenation
184------------
185
Brett Cannon757df6e2009-08-30 04:00:12 +0000186- Document that importing a module that has None in sys.modules triggers an
187 ImportError.
188
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000189- Issue #6556: Fixed the Distutils configuration files location explanation
190 for Windows.
191
Brett Cannonb49c70c2009-07-15 04:08:33 +0000192Tests
193-----
194
Brett Cannon3c273842009-07-20 00:14:29 +0000195- Fixed tests in importlib.test.source.test_abc_loader that were masking
196 the proper exceptions that should be raised for missing or improper code
197 object bytecode.
198
Brett Cannonb49c70c2009-07-15 04:08:33 +0000199- Removed importlib's custom test discovery code and switched to
200 unittest.TestLoader.discover().
201
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000202
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000203What's New in Python 3.1?
204=========================
205
206*Release date: 27-June-2009*
207
208Core and Builtins
209-----------------
210
Mark Dickinsonad195562009-06-24 19:01:32 +0000211- Issue #6334: Fix bug in range length calculation for ranges with
212 large arguments.
213
Raymond Hettinger159eac92009-06-23 20:38:54 +0000214- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
215 because it wasn't recognized as a sequence).
216
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000217Library
218-------
219
Georg Brandld07ac642009-08-13 07:50:57 +0000220- Issue #6126: Fixed pdb command-line usage.
221
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000222- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000223
Facundo Batista10706e22009-06-19 20:34:30 +0000224- Issue #6274: Fixed possible file descriptors leak in subprocess.py
225
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000226- Accessing io.StringIO.buffer now raises an AttributeError instead of
227 io.UnsupportedOperation.
228
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000229- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000230 (On Unix)
231
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000232- Issue #1202: zipfile module would cause a struct.error when attempting to
233 store files with a CRC32 > 2**31-1.
234
Matthias Kloseab2b7552009-06-22 13:05:52 +0000235Extension Modules
236-----------------
237
238- Issue #5590: Remove unused global variable in pyexpat extension.
239
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000240
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000241What's New in Python 3.1 Release Candidate 2?
242=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000243
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000244*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000245
246Core and Builtins
247-----------------
248
Raymond Hettinger94f55832009-06-12 18:40:16 +0000249- Fixed SystemError triggered by "range([], 1, -1)".
250
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000251- Issue #5924: On Windows, a large PYTHONPATH environment variable
252 (more than 255 characters) would be completely ignored.
253
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000254- Issue #4547: When debugging a very large function, it was not always
255 possible to update the lineno attribute of the current frame.
256
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000257- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000258 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000259
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000260Library
261-------
262
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000263- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000264 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000265 Popen. Tested under win32 to build the py-postgresql project.
266
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000267- Issue #6258: Support AMD64 in bdist_msi.
268
R. David Murray58641de2009-06-12 15:33:19 +0000269- Issue #6195: fixed doctest to no longer try to read 'source' data from
270 binary files.
271
Vinay Sajipaffbd872009-06-11 10:11:47 +0000272- Issue #5262: Fixed bug in next rollover time computation in
273 TimedRotatingFileHandler.
274
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000275- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
276 errors property. Additionally, the errors and encoding properties of StringIO
277 are always None now.
278
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000279- Issue #6137: The pickle module now translates module names when loading
280 or dumping pickles with a 2.x-compatible protocol, in order to make data
281 sharing and migration easier. This behaviour can be disabled using the
282 new `fix_imports` optional argument.
283
Raymond Hettinger40925d22009-06-04 18:32:39 +0000284- Removed the ipaddr module.
285
Georg Brandlb54d8012009-06-04 09:11:51 +0000286- Issue #3613: base64.{encode,decode}string are now called
287 base64.{encode,decode}bytes which reflects what type they accept and return.
288 The old names are still there as deprecated aliases.
289
Georg Brandl317185a2009-06-04 09:00:56 +0000290- Issue #5767: Remove sgmlop support from xmlrpc.client.
291
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000292- Issue #6150: Fix test_unicode on wide-unicode builds.
293
Antoine Pitrouc06de472009-05-30 21:04:26 +0000294- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
295 parameters.
296
Martin v. Löwis79b13872009-06-01 04:13:14 +0000297Windows
298-------
299
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000300- Issue #6221: Delete test registry key before running the test.
301
Martin v. Löwis79b13872009-06-01 04:13:14 +0000302- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
303
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000304C-API
305-----
306
307- Issue #5735: Python compiled with --with-pydebug should throw an
308 ImportError when trying to import modules compiled without
309 --with-pydebug, and vice-versa.
310
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000311
Brett Cannonc6d936e2009-06-07 20:09:53 +0000312Build
313-----
314
315- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
316 added LIBS to OS X framework builds.
317
Ronald Oussoren99aab652009-06-08 21:22:57 +0000318- Issue #5809: Specifying both --enable-framework and --enable-shared is
319 an error. Configure now explicity tells you about this.
320
321
Brett Cannonc6d936e2009-06-07 20:09:53 +0000322
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000323What's New in Python 3.1 release candidate 1?
324=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000325
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000326*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000327
328Core and Builtins
329-----------------
330
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000331- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
332 of the command line.
333
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000334- Issue #6012: Add cleanup support to O& argument parsing.
335
Eric Smith41669ca2009-05-23 14:23:22 +0000336- Issue #6089: Fixed str.format with certain invalid field specifiers
337 that would raise SystemError.
338
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000339- Issue #5982: staticmethod and classmethod now expose the wrapped
340 function with __func__.
341
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000342- Added support for multiple context managers in the same with-statement.
343 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000344
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000345- Issue #5829: complex("1e500") no longer raises OverflowError. This
346 makes it consistent with float("1e500") and interpretation of real
347 and imaginary literals.
348
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000349- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
350
R. David Murraydd226ea2009-05-13 12:27:21 +0000351- Issue #5994: the marshal module now has docstrings.
352
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000353- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
354 (1) inf and nan strings with trailing whitespace were incorrectly
355 rejected; (2) parsing of strings representing infinities and nans
356 was locale aware; and (3) the interpretation of fromhex('-nan')
357 didn't match that of float('-nan').
358
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000359Library
360-------
361
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000362- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
363
R. David Murrayfb123912009-05-28 18:19:00 +0000364- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
365
R. David Murray1f1b9d32009-05-27 20:56:59 +0000366- Issue #6121: pydoc now ignores leading and trailing spaces in the
367 argument to the 'help' function.
368
Georg Brandlfaf41492009-05-26 18:31:11 +0000369- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
370 arguments for strings with a space in them.
371
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000372- collections.namedtuple() was not working with the following field
373 names: cls, self, tuple, itemgetter, and property.
374
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000375- In unittest, using a skipping decorator on a class is now equivalent to
376 skipping every test on the class. The ClassTestSuite class has been removed.
377
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000378- Issue #6050: Don't fail extracting a directory from a zipfile if
379 the directory already exists.
380
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000381- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
382 than an int, which makes some operations possible under 64-bit Linux (e.g.
383 DN_MULTISHOT with F_NOTIFY).
384
Antoine Pitrou716c4442009-05-23 19:04:03 +0000385- Issue #5761: Add the name of the underlying file to the repr() of various
386 IO objects.
387
R. David Murraycaa27b72009-05-23 18:49:56 +0000388- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
389 by Musashi Tamura, tests by Marcin Bachry.
390
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000391- Issue #1983: Fix functions taking or returning a process identifier to use
392 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
393 a process identifier type wider than the standard C integer type.
394
R. David Murray87e20742009-05-23 01:30:26 +0000395- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
396 Patch by Farhan Ahmad, test by Marcin Bachry.
397
Antoine Pitrou6e610062009-05-15 17:04:50 +0000398- Issue #2116: Weak references and weak dictionaries now support copy()ing and
399 deepcopy()ing.
400
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000401- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
402
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000403- Issue #5918: Fix a crash in the parser module.
404
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000405- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
406
Antoine Pitroue4501852009-05-14 18:55:55 +0000407- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
408 library. This means, for example, that opening an UTF-16 text file in
409 append mode doesn't add a BOM at the end of the file if the file isn't
410 empty.
411
R. David Murray74b89242009-05-13 17:33:03 +0000412- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
413 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
414 corrects a pydoc regression.
415
R. David Murray99352742009-05-07 18:24:38 +0000416- Issue 5955: aifc's close method did not close the file it wrapped,
417 now it does. This also means getfp method now returns the real fp.
418
Benjamin Peterson932073a2009-05-23 16:14:33 +0000419Installation
420------------
421
422- Issue #6047: fullinstall has been removed because Python 3's executable will
423 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000424
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000425- Lib/smtpd.py is no longer installed as a script.
426
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000427Extension Modules
428-----------------
429
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000430- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000431
Martin v. Löwise23c8682009-05-29 16:01:34 +0000432- Issue #4873: Fix resource leaks in error cases of pwd and grp.
433
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000434- Issue #6093: Fix off-by-one error in locale.strxfrm.
435
Benjamin Peterson744af442009-05-23 18:51:49 +0000436- The _functools and _locale modules are now built into the libpython shared
437 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000438
Antoine Pitrou20327222009-05-24 20:39:11 +0000439Build
440-----
441
442- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
443 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
444 Clinton Roy.
445
Brett Cannon1262e7c2009-05-11 01:47:11 +0000446Tests
447-----
448
449- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
450 tests on darwin even when the OS was installed on a case-sensitive
451 filesystem. Also fixed tests that should not be run when
452 sys.dont_write_bytecode is true.
453
454
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000455What's New in Python 3.1 beta 1?
456================================
457
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000458*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000459
460Core and Builtins
461-----------------
462
Mark Dickinson865e01a2009-05-07 16:37:01 +0000463- Issue #5914: Add new C API function PyOS_string_to_double, and
464 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
465
Eric Smith741191f2009-05-06 13:08:15 +0000466- Issue #3382: float.__format__, complex.__format__, and %-formatting
467 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
468 affects nan -> NAN and inf -> INF.
469
Mark Hammond5a607a32009-05-06 08:04:54 +0000470- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
471 in all operations, including splitdrive, split, etc. splitunc() now issues
472 a PendingDeprecation warning.
473
Eric Smith63376222009-05-05 14:04:18 +0000474- Issue #5920: For float.__format__, change the behavior with the
475 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
476 to be like 'g' but with at least one decimal point and with a
477 default precision of 12. Previously, the behavior the same but with
478 a default precision of 6. This more closely matches str(), and
479 reduces surprises when adding alignment flags to the empty
480 presentation type. This also affects the new complex.__format__ in
481 the same way.
482
Martin v. Löwis011e8422009-05-05 04:43:17 +0000483- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
484
R. David Murrayb18500d2009-05-04 22:59:07 +0000485- Issue #5890: in subclasses of 'property' the __doc__ attribute was
486 shadowed by classtype's, even if it was None. property now
487 inserts the __doc__ into the subclass instance __dict__.
488
Antoine Pitrou244651a2009-05-04 18:56:13 +0000489- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
490 sequences. Patch by Nick Barnes and Victor Stinner.
491
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000492- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000493
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000494- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
495 received a new method, detach(). detach() disconnects the underlying stream
496 from the buffer or text IO and returns it.
497
Mark Dickinson33841c32009-05-01 15:37:04 +0000498- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
499 floats with absolute value over 1e50. Also remove length
500 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
501 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000502
Eric Smith741191f2009-05-06 13:08:15 +0000503- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000504 format(complex(1, 2./3), '.5') now produces a sensible result.
505
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000506- Issue #5864: Fix empty format code formatting for floats so that it
507 never gives more than the requested number of significant digits.
508
Eric Smith6dc46f52009-04-27 20:39:49 +0000509- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
510 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
511
Eric Smithcc32a112009-04-26 21:35:14 +0000512- Issue #5835: Deprecate PyOS_ascii_formatd.
513
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000514- Issue #4971: Fix titlecase for characters that are their own
515 titlecase, but not their own uppercase.
516
Benjamin Peterson193152c2009-04-25 01:08:45 +0000517- Issue #5283: Setting __class__ in __del__ caused a segfault.
518
Mark Dickinsonad476da2009-04-23 19:14:16 +0000519- Issue #5816: complex(repr(z)) now recovers z exactly, even when
520 z involves nans, infs or negative zeros.
521
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000522- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000523
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000524- Issue #1869 (and many duplicates): make round(x, n) correctly
525 rounded for a float x, by using the decimal <-> binary conversions
526 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
527 consistently agrees with format(x, '.2f').
528
Benjamin Petersonae937c02009-04-18 20:54:08 +0000529- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
530 some builtin types.
531
Eric Smith0923d1d2009-04-16 20:16:10 +0000532- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
533
Eric Smith35e84722009-04-16 20:21:28 +0000534- Issue #5515: str.format() type 'n' combined with commas and leading
535 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000536
537- Implement PEP 378, Format Specifier for Thousands Separator, for
538 floats.
539
Mark Dickinson3370cce2009-04-17 22:40:53 +0000540- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000541 1e11, not 1e12. This avoids printing 13 significant digits in
542 situations where only 12 of them are correct. Example problem
543 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
544 long time.)
545
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000546- Issue #1580: On most platforms, use a 'short' float repr: for a
547 finite float x, repr(x) now outputs a string based on the shortest
548 sequence of decimal digits that rounds to x. Previous behaviour was
549 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000550 Another minor difference is that the new repr switches to
551 exponential notation at 1e16 instead of the previous 1e17; this
552 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000553
554 There's a new sys attribute sys.float_repr_style, which takes
555 the value 'short' to indicate that we're using short float repr,
556 and 'legacy' if the short float repr isn't available for one
557 reason or another.
558
559 The float repr change involves incorporating David Gay's 'perfect
560 rounding' code into the Python core (it's in Python/dtoa.c). As a
561 secondary consequence, all string-to-float and float-to-string
562 conversions (including all float formatting operations) will be
563 correctly rounded on these platforms.
564
565 See issue 1580 discussions for details of platforms for which
566 this change does not apply.
567
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000568- Issue #5759: float() didn't call __float__ on str subclasses.
569
Georg Brandlabc38772009-04-12 15:51:51 +0000570- The string.maketrans() function is deprecated; there is a new static method
571 maketrans() on the bytes and bytearray classes. This removes confusion about
572 the types string.maketrans() is supposed to work with, and mirrors the
573 methods available on the str class.
574
R. David Murraydc6da8a2009-04-09 22:16:43 +0000575- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
576 its clarity and its speed.
577
Matthias Klose091c7b12009-04-07 13:24:27 +0000578- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
579 to avoid compiler warnings.
580
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000581- Issue #3739: The unicode-internal encoder now reports the number of characters
582 consumed like any other encoder (instead of the number of bytes).
583
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000584Installation
585------------
586
587- Issue #5756: Install idle and pydoc with a 3 suffix.
588
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000589Library
590-------
591
Martin v. Löwis403117a2009-05-24 19:19:17 +0000592- Issue #5311: bdist_msi can now build packages that do not depend on a
593 specific Python version.
594
Raymond Hettingereb816952009-05-29 01:22:18 +0000595- Issue #5150: IDLE's format menu now has an option to strip trailing
596 whitespace.
597
Vinay Sajipaffbd872009-06-11 10:11:47 +0000598- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000599 the right type checkings anymore.
600
Thomas Heller00cfc372009-05-05 19:04:40 +0000601- Issue #4875: On win32, ctypes.util.find_library does no longer
602 return directories.
603
Georg Brandl243ad662009-05-05 09:00:19 +0000604- Issue #5142: Add the ability to skip modules while stepping to pdb.
605
Georg Brandl991f9202009-05-05 08:31:54 +0000606- Issue #1309567: Fix linecache behavior of stripping subdirectories when
607 looking for files given by a relative filename.
608
Georg Brandleaa84ef2009-05-05 08:14:33 +0000609- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
610 turtle demos in Demo/turtle.
611
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000612- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
613 extracting a file to the root directory.
614
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000615- Issue #5913: os.listdir() should fail for empty path on windows.
616
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000617- Issue #5084: unpickling now interns the attribute names of pickled objects,
618 saving memory and avoiding growth in size of subsequent pickles. Proposal
619 and original patch by Jake McGuire.
620
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000621- The json module now works exclusively with str and not bytes.
622
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000623- Issue #3959: The ipaddr module has been added to the standard library.
624 Contributed by Google.
625
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000626- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
627 error when a named pipe is encountered, rather than blocking infinitely.
628
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000629- Issue #5857: tokenize.tokenize() now returns named tuples.
630
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000631- Issue #4305: ctypes should now build again on mipsel-linux-gnu
632
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000633- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
634 string is already in normalized form, by performing a quick check beforehand.
635 Original patch by Rauli Ruohonen.
636
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000637- Issue #5853: calling a function of the mimetypes module from several threads
638 at once could hit the recursion limit if the mimetypes database hadn't been
639 initialized before.
640
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000641- Issue #5854: Updated __all__ to include some missing names and remove some
642 names which should not be exported.
643
Thomas Heller34596a92009-04-24 20:50:00 +0000644- Issue #3102: All global symbols that the _ctypes extension defines
645 are now prefixed with 'Py' or '_ctypes'.
646
647- Issue #5041: ctypes does now allow pickling wide character.
648
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000649- Issue #5812: For the two-argument form of the Fraction constructor,
650 Fraction(m, n), m and n are permitted to be arbitrary Rational
651 instances.
652
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000653- Issue #5812: Fraction('1e6') is valid: more generally, any string
654 that's valid for float() is now valid for Fraction(), with the
655 exception of strings representing NaNs and infinities.
656
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000657- Issue #5734: BufferedRWPair was poorly tested and had several glaring
658 bugs. Patch by Brian Quinlan.
659
R. David Murray9e94ddf2009-04-13 17:06:33 +0000660- Issue #1161031: fix readwrite select flag handling: POLLPRI now
661 results in a handle_expt_event call, not handle_read_event, and POLLERR
662 and POLLNVAL now call handle_close, not handle_expt_event. Also,
663 dispatcher now has an 'ignore_log_types' attribute for suppressing
664 log messages, which is set to 'warning' by default.
665
Matthias Klosea3d29e82009-04-07 13:13:10 +0000666- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
667 new arguments introduced in 2.5.
668
Walter Dörwald1b08b302009-04-25 14:13:56 +0000669- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
670 makeunicodedata.py and regenerated the Unicode database (This fixes
671 u'\u1d79'.lower() == '\x00').
672
Matthias Klose535336f2009-04-07 13:49:45 +0000673Extension Modules
674-----------------
675
Benjamin Petersone04b6272009-05-04 22:25:21 +0000676- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
677 pwd.
678
Mark Dickinsonea835e72009-04-19 20:40:33 +0000679- Issue #5463: In struct module, remove deprecated float coercion
680 for integer type codes: struct.pack('L', 0.3) should now raise
681 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
682 The version number has been bumped to 0.3.
683
Matthias Klose535336f2009-04-07 13:49:45 +0000684- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
685 using Berkley-DB.
686
Nick Coghlan47384702009-04-22 16:13:36 +0000687Tests
688-----
689
690- Issue #5354: New test support function import_fresh_module() makes
691 it easy to import both normal and optimised versions of modules.
692 test_heapq and test_warnings have been adjusted to use it, tests for
693 other modules with both C and Python implementations in the stdlib
694 can be adjusted to use it over time.
695
Walter Dörwald4ba80132009-04-25 12:48:43 +0000696- Issue #5837: Certain sequences of calls to set() and unset() for
697 support.EnvironmentVarGuard objects restored the environment variables
698 incorrectly on __exit__.
699
Benjamin Petersonb173f782009-05-05 22:31:58 +0000700C-API
701-----
702
703- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
704
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000705
Benjamin Petersond1735892009-03-07 18:46:21 +0000706What's New in Python 3.1 alpha 2?
707=================================
708
Benjamin Peterson88f14352009-04-04 21:06:52 +0000709*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000710
711Core and Builtins
712-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000713
Eric Smith1e1d7d22009-04-03 22:25:33 +0000714- Implement PEP 378, Format Specifier for Thousands Separator, for
715 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000716
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000717- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
718
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000719- Issue #5499: The 'c' code for argument parsing functions now only accepts a
720 byte, and the 'C' code only accepts a unicode character.
721
Georg Brandl406b3d82009-04-11 21:24:37 +0000722- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
723 when hitting the recursion limit under certain circumstances.
724
Brett Cannon0759dd62009-04-01 18:13:07 +0000725- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
726
Georg Brandlab6f2f62009-03-31 04:16:10 +0000727- Fix a segfault when running test_exceptions with coverage, caused by
728 insufficient checks in accessors of Exception.__context__.
729
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000730- Issue #5604: non-ASCII characters in module name passed to
731 imp.find_module() were converted to UTF-8 while the path is
732 converted to the default filesystem encoding, causing nonsense.
733
Benjamin Peterson09832742009-03-26 17:15:46 +0000734- Issue #5126: str.isprintable() returned False for space characters.
735
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000736- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
737 the end sys.path, for compatibility with the system install of Python.
738
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000739- Issue #4688: Add a heuristic so that tuples and dicts containing only
740 untrackable objects are not tracked by the garbage collector. This can
741 reduce the size of collections and therefore the garbage collection overhead
742 on long-running programs, depending on their particular use of datatypes.
743
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000744- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
745 improve its performance. Long divisions and remainder operations
746 are now between 50% and 150% faster.
747
Mark Dickinsonbd792642009-03-18 20:06:12 +0000748- Issue #4258: Make it possible to use base 2**30 instead of base
749 2**15 for the internal representation of integers, for performance
750 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
751 --enable-big-digits option to configure, which overrides the
752 default. Add sys.int_info structseq to provide information about
753 the internal format.
754
Mark Dickinson081dfee2009-03-18 14:47:41 +0000755- Issue #4474: PyUnicode_FromWideChar now converts characters outside
756 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
757 and sizeof(Py_UNICODE) == 2.
758
Eric Smith8ec90442009-03-14 12:29:34 +0000759- Issue #5237: Allow auto-numbered fields in str.format(). For
760 example: '{} {}'.format(1, 2) == '1 2'.
761
Antoine Pitrou652e7072009-03-13 19:25:20 +0000762- Issue #5392: when a very low recursion limit was set, the interpreter would
763 abort with a fatal error after the recursion limit was hit twice.
764
Matthias Klose042f1332009-04-04 14:32:42 +0000765- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
766 short file names.
767
Benjamin Petersond1735892009-03-07 18:46:21 +0000768Library
769-------
770
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000771- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000772 mailbox.MH.get_message().
773
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000774- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
775 error substitutions from non-strict codec error callbacks in
776 incrementalencoder and StreamWriter.
777
Georg Brandl33c28812009-04-01 23:07:29 +0000778- Issue #5656: Fix the coverage reporting when running the test suite with
779 the -T argument.
780
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000781- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
782
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000783- Issue #5624: Fix the _winreg module name still used in several modules.
784
Benjamin Petersona1b49012009-03-31 23:11:32 +0000785- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
786
Jesse Nollera9314042009-03-31 22:36:44 +0000787- Issue #5619: Multiprocessing children disobey the debug flag and causes
788 popups on windows buildbots. Patch applied to work around this issue.
789
Jesse Noller32d68c22009-03-31 18:48:42 +0000790- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
791
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000792- Issue #5387: Fixed mmap.move crash by integer overflow.
793
Jesse Nollerf8d00852009-03-31 03:25:07 +0000794- Issue #5261: Patch multiprocessing's semaphore.c to support context
795 manager use: "with multiprocessing.Lock()" works now.
796
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000797- Issue #5236: Change time.strptime() to only take strings. Didn't work with
798 bytes already but the failure was non-obvious.
799
Jesse Noller7af4ef82009-03-30 16:47:15 +0000800- Issue #5177: Multiprocessing's SocketListener class now uses
801 socket.SO_REUSEADDR on all connections so that the user no longer needs
802 to wait 120 seconds for the socket to expire.
803
Benjamin Peterson48e24782009-03-29 13:02:52 +0000804- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
805
Antoine Pitrou66994e12009-03-29 00:45:26 +0000806- Issue #1174606: Calling read() without arguments of an unbounded file
807 (typically /dev/zero under Unix) could crash the interpreter.
808
Benjamin Peterson59406a92009-03-26 17:10:29 +0000809- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
810 io.BufferedRandom have been deprecated for removal in Python 3.2.
811
Lars Gustäbel42e00912009-03-22 20:34:29 +0000812- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
813 forever on incomplete input. That caused tarfile.open() to hang when used
814 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
815 partial bzip2 compressed data.
816
Mark Dickinson79f52032009-03-17 23:12:51 +0000817- Issue #2110: Add support for thousands separator and 'n' type
818 specifier to Decimal.__format__
819
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000820- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
821 '>' alignment characters.
822
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000823- The error detection code in FileIO.close() could fail to reflect the `errno`
824 value, and report it as -1 instead.
825
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000826- Issue #5016: FileIO.seekable() could return False if the file position
827 was negative when truncated to a C int. Patch by Victor Stinner.
828
Mark Dickinsonae681df2009-03-21 10:26:31 +0000829Extension Modules
830-----------------
831
Benjamin Petersone099b372009-04-04 17:09:35 +0000832- Issue #5391: mmap now deals exclusively with bytes.
833
Mark Dickinsonae681df2009-03-21 10:26:31 +0000834- Issue #5463: In struct module, remove deprecated overflow wrapping
835 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000836 struct.error instead of returning b'\xff\xff\xff\xff'. The
837 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
838 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000839
Benjamin Petersond1735892009-03-07 18:46:21 +0000840
Benjamin Petersona58a6262009-03-07 16:34:40 +0000841What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000842================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000843
Benjamin Petersona58a6262009-03-07 16:34:40 +0000844*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000845
846Core and Builtins
847-----------------
848
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000849- The io module has been reimplemented in C for speed.
850
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000851- Give dict views an informative __repr__.
852
Eric Smith5e5c0db2009-02-20 14:25:03 +0000853- Issue #5247: Improve error message when unknown format codes are
854 used when using str.format() with str, int, and float arguments.
855
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000856- Issue #5249: time.strftime returned malformed string when format string
857 contained non ascii character on windows.
858
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000859- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
860 source has already been decoded into str.
861
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000862- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
863 rotating the object pointer by 4 bits to the right.
864
Mark Dickinson87ec0852009-02-09 17:15:59 +0000865- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
866 it now forces its argument to double before testing for infinity.
867
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000868- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
869 returns a non-number type.
870
Benjamin Peterson87618552009-02-08 15:00:52 +0000871- Issue #5182: Removed memoryview.__str__.
872
Mark Dickinsonc008a172009-02-01 13:59:22 +0000873- Issue #1717: Removed builtin cmp() function, dropped tp_compare
874 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000875 the type definition cmpfunc. The tp_compare slot has been renamed
876 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000877
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000878- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000879 were suppressing all exceptions. These include list() and bytearray().
880
Mark Dickinson1124e712009-01-28 21:25:58 +0000881- Issue #4707: round(x, n) now returns an integer if x is an integer.
882 Previously it returned a float.
883
Antoine Pitroub52ec782009-01-25 16:34:23 +0000884- Issue #4753: By enabling a configure option named '--with-computed-gotos'
885 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
886 evaluation loop is compiled with a new dispatch mechanism which gives
887 speedups of up to 20%, depending on the system, on various benchmarks.
888
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000889- Issue #4874: Most builtin decoders now reject unicode input.
890
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000891- Issue #4842: Don't allow trailing 'L' when constructing an integer
892 from a string.
893
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000894- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
895
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000896- Issue #4838: When a module is deallocated, free the memory backing the
897 optional module state data.
898
Mark Dickinson8055afd2009-01-17 10:04:45 +0000899- Issue #4910: Rename nb_long slot to nb_reserved, and change its
900 type to (void *).
901
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000902- Issue #4935: The overflow checking code in the expandtabs() method common
903 to str, bytes and bytearray could be optimized away by the compiler, letting
904 the interpreter segfault instead of raising an error.
905
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000906- Issue #3720: Fix a crash when an iterator modifies its class and removes its
907 __next__ method.
908
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000909- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
910 function no longer attempt to call the __long__ slot to convert an object
911 to an integer. Only the __int__ and __trunc__ slots are examined.
912
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000913- Issue #4893: Use NT threading on CE.
914
Martin v. Löwisec59d042009-01-12 07:59:10 +0000915- Issue #4915: Port sysmodule to Windows CE.
916
Antoine Pitrouab868312009-01-10 15:40:25 +0000917- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
918 common cases are optimized thanks to a dedicated fast path and a moderate
919 amount of loop unrolling.
920
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000921- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
922 collecting the oldest generation) so that allocating lots of objects without
923 destroying them does not show quadratic performance. Based on a proposal by
924 Martin von Löwis at
925 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
926
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000927- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000928 having been closed (for instance, a read() call could return some
929 previously buffered data). Patch by Dmitry Vasiliev.
930
Antoine Pitrou05608432009-01-09 18:53:14 +0000931- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
932 flag to work properly. Furthermore, when specifying -u, the text stdout
933 and stderr streams have line-by-line buffering enabled (the default being
934 to buffer arbitrary chunks of data).
935
Raymond Hettinger35631532009-01-09 03:58:09 +0000936- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
937 instead of ints (reducing its size from 4 to 8 times thereby reducing
938 Python's overall memory).
939
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000940- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
941 an existing .py counterpart, override the co_filename attributes of all
942 code objects if the original filename is obsolete (which can happen if the
943 file has been renamed, moved, or if it is accessed through different paths).
944 Patch by Ziga Seilnacht and Jean-Paul Calderone.
945
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000946- Issue #4580: Fix slicing of memoryviews when the item size is greater than
947 one byte. Also fixes the meaning of len() so that it returns the number of
948 items, rather than the size in bytes.
949
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000950- Issue #4075: Use OutputDebugStringW in Py_FatalError.
951
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000952- Issue #4747: When the terminal does not use utf-8, executing a script with
953 non-ascii characters in its name could fail with a "SyntaxError: None" error.
954
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000955- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000956 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000957
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000958- Issue #3680: Reference cycles created through a dict, set or deque iterator
959 did not get collected.
960
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000961- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
962 where the tp_hash and tp_dict slots are both NULL.
963
Georg Brandlccc47b62008-12-28 11:44:14 +0000964- Issue #4759: None is now allowed as the first argument of
965 bytearray.translate(). It was always allowed for bytes.translate().
966
Skip Montanaro80072cb2008-12-23 03:51:14 +0000967- Added test case to ensure attempts to read from a file opened for writing
968 fail.
969
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000970- Issue #3106: Speedup some comparisons (str/str and int/int).
971
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000972- Issue #2183: Simplify and optimize bytecode for list, dict and set
973 comprehensions. Original patch for list comprehensions by Neal Norwitz.
974
Antoine Pitrou621601a2008-12-17 23:18:19 +0000975- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
976 print elapsed times, not only when some objects are uncollectable /
977 unreachable. Original patch by Neil Schemenauer.
978
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000979- Issue #3439: Add a bit_length method to int.
980
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000981- Issue #2173: When getting device encoding, check that return value of
982 nl_langinfo is not the empty string. This was causing silent build
983 failures on OS X.
984
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000985- Issue #4597: Fixed several opcodes that weren't always propagating
986 exceptions.
987
988- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000989 context manager returns a value that cannot be converted to a bool.
990
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000991- Issue #4445: Replace "sizeof(PyBytesObject)" with
992 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
993 bytes instances. On a typical machine this saves 3 bytes of memory
994 (on average) per allocation of a bytes instance.
995
Christian Heimesa872de52008-12-05 08:26:55 +0000996- Issue #4533: File read operation was dreadfully slow due to a slowly
997 growing read buffer. Fixed by using the same growth rate algorithm as
998 Python 2.x.
999
Antoine Pitrou5504e892008-12-06 21:27:53 +00001000- Issue #4509: Various issues surrounding resize of bytearray objects to
1001 which there are buffer exports (e.g. memoryview instances).
1002
Georg Brandlf9734072008-12-07 15:30:06 +00001003- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1004 method on file objects with closefd=False. The file descriptor is still
1005 kept open but the file object behaves like a closed file. The ``FileIO``
1006 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001007
Antoine Pitroubc420402008-12-07 20:14:49 +00001008- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1009 larger than 1.
1010
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001011- Issue #4748: Lambda generators no longer return a value.
1012
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001013- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1014
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001015- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1016 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1017 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1018 of using the replace error handler in PyUnicode_DecodeUTF8().
1019
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001020Library
1021-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001022
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001023- Issue #6693: New functions in site.py to get user/global site packages paths.
1024
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001025- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1026 opening an empty or very small file.
1027
1028- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001029 behavior is similar when used with -O.
1030
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001031- unittest has been split up into a package. All old names should still work.
1032
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001033- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1034 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1035 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1036 for the obsolete get_versions() functions.
1037
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001038- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1039
1040- Issue #6314: logging: Extra checks on the "level" argument in more places.
1041
1042- Issue #2622: Fixed an ImportError when importing email.messsage from a
1043 standalone application built with py2exe or py2app.
1044
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001045- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001046
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001047- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001048 attribute.
1049
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001050- Issue #6413: Fixed the log level in distutils.dist for announce.
1051
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001052- Issue #6403: Fixed package path usage in build_ext.
1053
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001054- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1055 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1056 descriptor errors
1057
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001058- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001059 extension in a subdirectory if the extension name had dots.
1060
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001061- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001062 unixcompiler. Original patch by Sridhar Ratnakumar.
1063
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001064- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1065 httplib, allowing the usage of http_proxy.
1066
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001067- Issue #6287: Added the license field in Distutils documentation.
1068
Tarek Ziadéff543362009-06-11 09:25:41 +00001069- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1070
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001071- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1072 in Makefiles. This prevents compile errors when using syntax like:
1073 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1074
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001075- Issue #6131: test_modulefinder leaked when run after test_distutils.
1076 Patch by Hirokazu Yamamoto.
1077
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001078- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1079
Vinay Sajipaffbd872009-06-11 10:11:47 +00001080- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001081 and tests on pywin32 by Tim Golden.
1082
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001083- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1084
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001085- Issue #6046: Fixed the library extension when distutils build_ext is used
1086 inplace. Initial patch by Roumen Petrov.
1087
Vinay Sajipaffbd872009-06-11 10:11:47 +00001088- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001089 subcommand.
1090
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001091- Issue #6022: a test file was created in the current working directory by
1092 test_get_outputs in Distutils.
1093
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001094- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1095 inplace option. Initial patch by kxroberto.
1096
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001097- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1098 for old-style extensions.
1099
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001100- Issue #5976: Fixed Distutils test_check_environ.
1101
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001102- Issue #5941: Distutils build_clib command was not working anymore because
1103 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1104 Makefile besides AR and make Distutils use it. Original patch by David
1105 Cournapeau.
1106
R. David Murrayb507d2e2009-04-29 15:34:32 +00001107- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1108
Vinay Sajipaffbd872009-06-11 10:11:47 +00001109- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001110 anymore.
1111
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001112- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001113 sysconfig.get_config_vars.
1114
Tarek Ziadé23336082009-04-25 12:39:56 +00001115- Issue #4951: Fixed failure in test_httpservers.
1116
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001117- Issue #5795: Fixed test_distutils failure on Debian ppc.
1118
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001119- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1120
Georg Brandl1f9fa312009-04-27 16:42:58 +00001121- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1122 a value in SafeConfigParser.
1123
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001124- Issue #5732: added a new command in Distutils: check.
1125
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001126- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001127 platforms. Initial patch by Paul Moore.
1128
Tarek Ziadéf6370502009-04-05 22:57:21 +00001129- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1130 Initial fix by Steven Bethard.
1131
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001132- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1133 Initial fix by Wayne Davison.
1134
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001135- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001136
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001137- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001138
Brett Cannonf47e84c2009-04-01 16:06:01 +00001139- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1140 instead of performing them in functions. Helps prevent import deadlocking in
1141 threads.
1142
R. David Murraye59482e2009-04-01 03:42:00 +00001143- Issue #2522: locale.format now checks its first argument to ensure it has
1144 been passed only one pattern, avoiding mysterious errors where it appeared
1145 that it was failing to do localization.
1146
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001147- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1148 Brandl.
1149
Antoine Pitrou350370c2009-03-14 00:13:13 +00001150- Issue #1222: locale.format() bug when the thousands separator is a space
1151 character.
1152
Tarek Ziadé516db942009-03-11 12:52:00 +00001153- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1154 Tim Golden.
1155
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001156- collections.deque() objects now have a read-only attribute called maxlen.
1157
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001158- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1159 it is has been populated and properly configured in order to prevent
1160 window flashing.
1161
Guilherme Polo56f5be52009-03-07 01:54:57 +00001162- Issue #4792: Prevent a segfault in _tkinter by using the
1163 guaranteed to be safe interp argument given to the PythonCmd in place of
1164 the Tcl interpreter taken from a PythonCmd_ClientData.
1165
1166- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1167
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001168- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1169 Original patch by Akira Kitada.
1170
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001171- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1172
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001173- Issue #5385: Fixed mmap crash after resize failure on windows.
1174
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001175- Issue #5179: Fixed subprocess handle leak on failure on windows.
1176
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001177- PEP 372: Added collections.OrderedDict().
1178
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001179- The _asdict() for method for namedtuples now returns an OrderedDict().
1180
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001181- configparser now defaults to using an ordered dictionary.
1182
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001183- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1184 import guess_extension`` was used.
1185
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001186- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1187 with same tagname but larger size than first map. (Windows)
1188
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001189- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1190 overrun.
1191
Tarek Ziadéf0721222009-02-28 10:16:43 +00001192- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1193 bdist_rpm command.
1194
1195- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1196
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001197- Issue #5052: make Distutils compatible with 2.3 again.
1198
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001199- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1200 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001201
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001202- Issue #5287: Add exception handling around findCaller() call to help out
1203 IronPython.
1204
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001205- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1206 The file was resized to wrong size.
1207
1208- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1209
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001210- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001211 from the package_data and the data_files metadata.
1212
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001213- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001214 support.TempdirManager, to avoid writing in the tests directory.
1215
Tarek Ziadé68c50952009-02-13 23:04:17 +00001216- Issue #4524: distutils build_script command failed with --with-suffix=3.
1217 Initial patch by Amaury Forgeot d'Arc.
1218
Tarek Ziadé811d6242009-02-13 22:26:15 +00001219- Issue #2461: added tests for distutils.util
1220
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001221- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1222 which inherited from numbers.py which did not have __slots__ defined. The
1223 numbers hierarchy now has its own __slots__ declarations.
1224
Antoine Pitroub353c122009-02-11 00:39:14 +00001225- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1226 encoding.
1227
Thomas Heller465c8022009-02-10 18:59:04 +00001228- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1229 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1230
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001231- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1232 under NT and OS2. Patch by Philip Jenvey.
1233
Brett Cannonbefb14f2009-02-10 02:10:16 +00001234- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1235 to be recreated. This avoids a timing hole thanks to the old reliance on the
1236 ctime of the files involved.
1237
Guilherme Polob681df42009-02-09 22:33:59 +00001238- Issue #5122: Synchronize tk load failure check to prevent a potential
1239 deadlock.
1240
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001241- Issue #1818: collections.namedtuple() now supports a keyword argument
1242 'rename' which lets invalid fieldnames be automatically converted to
1243 positional names in the form, _1, _2, ...
1244
Guilherme Poloae098992009-02-09 16:44:24 +00001245- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1246
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001247- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1248 public documented method ``ZipImporter.get_filename()``.
1249
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001250- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1251 the execution of packages by looking for and executing a ``__main__``
1252 submodule when a package name is supplied. Initial patch by Andi
1253 Vajda.
1254
Guilherme Polo491aee22009-02-06 23:16:11 +00001255- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1256 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1257 Tkapp_Call when calling from a thread different than the one that created
1258 the Tcl interpreter. Patch by Robert Hancock.
1259
Eric Smith0e5b5622009-02-06 01:32:42 +00001260- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1261 Ross Light.
1262
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001263- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001264 environment/Makefile. Patch by Douglas Greiman.
1265
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001266- Issue #1276768: The verbose option was not used in the code of
1267 distutils.file_util and distutils.dir_util.
1268
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001269- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001270 --enabled-shared activated. Initial patch by Dave Peterson.
1271
Guilherme Polo7f423952009-02-02 21:17:09 +00001272- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1273
Raymond Hettinger85602262009-02-03 04:19:10 +00001274- The shelve module now defaults to pickle protocol 3.
1275
Brett Cannone61426e2009-01-30 01:31:34 +00001276- Fix a bug in the trace module where a bytes object from co_lnotab had its
1277 items being passed through ord().
1278
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001279- Issue #2047: shutil.move() could believe that its destination path was
1280 inside its source path if it began with the same letters (e.g. "src" vs.
1281 "src.new").
1282
Guilherme Polo5f238482009-01-28 14:41:10 +00001283- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1284
Raymond Hettinger89e12962009-01-26 02:09:03 +00001285- Removed isSequenceType(), isMappingType, and isNumberType() from the
1286 operator module; use the abstract base classes instead. Also removed
1287 the repeat() function; use mul() instead.
1288
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001289- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001290 collections.namedtuple() relied on __name__ being defined.
1291
1292- Backport importlib from Python 3.1. Only the import_module() function has
1293 been backported to help facilitate transitions from 2.7 to 3.1.
1294
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001295- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1296 the tar file was overriden by the gztar one.
1297
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001298- Issue #4863: distutils.mwerkscompiler has been removed.
1299
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001300- Added a new itertools functions: combinations_with_replacement()
1301 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001302
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001303- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001304 allowed non-integer arguments.
1305
Jesse Noller41faa542009-01-25 03:45:53 +00001306- Fix and properly document the multiprocessing module's logging
1307 support, expose the internal levels and provide proper usage
1308 examples.
1309
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001310- Issue #1672332: fix unpickling of subnormal floats, which was
1311 producing a ValueError on some platforms.
1312
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001313- Issue #3881: Help Tcl to load even when started through the
1314 unreadable local symlink to "Program Files" on Vista.
1315
Martin v. Löwis59e47792009-01-24 14:10:07 +00001316- Issue #4710: Extract directories properly in the zipfile module;
1317 allow adding directories to a zipfile.
1318
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001319- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001320 --without-threads argument. When this occurs, _multiprocessing will
1321 be disabled, and not compiled.
1322
Antoine Pitrou08838b62009-01-21 00:55:13 +00001323- Issue #5008: When a file is opened in append mode with the new IO library,
1324 do an explicit seek to the end of file (so that e.g. tell() returns the
1325 file size rather than 0). This is consistent with the behaviour of the
1326 traditional 2.x file object.
1327
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001328- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1329 parameter was set.
1330
Mark Dickinson8dd05142009-01-20 20:43:58 +00001331- Issue #4842: Always append a trailing 'L' when pickling longs using
1332 pickle protocol 0. When reading, the 'L' is optional.
1333
Brett Cannonafccd632009-01-20 02:21:27 +00001334- Add the importlib package.
1335
Jesse Noller9a0fc972009-01-18 21:12:58 +00001336- Issue #4301: Patch the logging module to add processName support, remove
1337 _check_logger_class from multiprocessing.
1338
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001339- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001340 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001341
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001342- Issue #4959: inspect.formatargspec now works for keyword only arguments
1343 without defaults.
1344
Jesse Noller6214edd2009-01-19 16:23:53 +00001345- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1346 for *nix machines for negative handles and large int handles. Without this check
1347 it is possible to segfault the interpreter.
1348
Jesse Nollerb0516a62009-01-18 03:11:38 +00001349- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1350 in sharedctypes.py.
1351
1352- Issue #1225107: inspect.isclass() returned True for instances with a custom
1353 __getattr__.
1354
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001355- Issue #3826 and #4791: The socket module now closes the underlying socket
1356 appropriately when it is being used via socket.makefile() objects
1357 rather than delaying the close by waiting for garbage collection to do it.
1358
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001359- Issue #1696199: Add collections.Counter() for rapid and convenient
1360 counting.
1361
Antoine Pitrou308705e2009-01-10 16:22:51 +00001362- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1363
Thomas Heller5e4e4272009-01-08 09:34:20 +00001364- Issue #4867: Fixed a crash in ctypes when passing a string to a
1365 function without defining argtypes.
1366
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001367- Issue #4272: Add an optional argument to the GzipFile constructor to override
1368 the timestamp in the gzip stream. The default value remains the current time.
1369 The information can be used by e.g. gunzip when decompressing. Patch by
1370 Jacques Frechet.
1371
Mark Dickinson315a20a2009-01-04 21:34:18 +00001372- Restore Python 2.3 compatibility for decimal.py.
1373
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001374- Issue #3638: Remove functions from _tkinter module level that depend on
1375 TkappObject to work with multiple threads.
1376
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001377- Issue #4718: Adapt the wsgiref package so that it actually works with
1378 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001379 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1380
Raymond Hettinger771ed762009-01-03 19:20:32 +00001381- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1382 to the decimal module.
1383
Georg Brandl3a9b0622009-01-03 22:07:57 +00001384- Fractions.from_float() no longer loses precision for integers too big to
1385 cast as floats.
1386
Mark Dickinsonf9236412009-01-02 23:23:21 +00001387- Issue #4812: add missing underscore prefix to some internal-use-only
1388 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1389
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001390- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001391 did unnecessary work in the common case where no key function was specified.
1392
Georg Brandlb1441c72009-01-03 22:33:39 +00001393- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1394 the function is not a generator.
1395
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001396- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1397 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001398
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001399- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001400 function. Original patch by Thomas Heller.
1401
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001402- Issue #3767: Convert Tk object to string in tkColorChooser.
1403
Martin v. Löwise354d782008-12-29 16:03:04 +00001404- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1405
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001406- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1407 the code under test can be written inline if more practical.
1408
Georg Brandldb7b6b92009-01-01 15:53:14 +00001409- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1410 works as expected in the interactive environment.
1411
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001412- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1413 Gabriel Genellina.
1414
Antoine Pitrou180a3362008-12-14 16:36:46 +00001415- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1416 boundary.
1417
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001418- Issue #4223: inspect.getsource() will now correctly display source code
1419 for packages loaded via zipimport (or any other conformant PEP 302
1420 loader). Original patch by Alexander Belopolsky.
1421
1422- Issue #4201: pdb can now access and display source code loaded via
1423 zipimport (or any other conformant PEP 302 loader). Original patch by
1424 Alexander Belopolsky.
1425
1426- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1427 302 conformant loader) will now work correctly in most cases (they
1428 are still subject to the constraints that exist for all code running
1429 from inside a module loaded via a PEP 302 loader and attempting to
1430 perform IO operations based on __file__). Original patch by
1431 Alexander Belopolsky.
1432
1433- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1434 allows backporting to maintenance branches. Original patch by
1435 Alexander Belopolsky.
1436
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001437- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1438 a non-ASCII letter.
1439
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001440- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1441
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001442- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1443 codec cannot be found. This is for compatibility with the builtin behavior.
1444
Facundo Batista708d5812008-12-11 04:20:07 +00001445- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1446 give correct results in the case where one argument is a quiet NaN
1447 and the other is a finite number that requires rounding.
1448
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001449- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1450 libs.
1451
Georg Brandlf9734072008-12-07 15:30:06 +00001452- Added the subprocess.check_call_output() convenience function to get output
1453 from a subprocess on success or raise an exception on error.
1454
1455- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1456 support unusual filenames (such as those containing semi-colons) in
1457 Content-Disposition headers.
1458
1459- Issue #4384: Added logging integration with warnings module using
1460 captureWarnings(). This change includes a NullHandler which does nothing;
1461 it will be of use to library developers who want to avoid the "No handlers
1462 could be found for logger XXX" message which can appear if the library user
1463 doesn't configure logging.
1464
1465- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1466 exception.
1467
Georg Brandleee31162008-12-07 15:15:22 +00001468- Issue #4529: fix the parser module's validation of try-except-finally
1469 statements.
1470
1471- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1472 not a malformed option.
1473
1474- Added the subprocess.check_output() convenience function to get output
1475 from a subprocess on success or raise an exception on error.
1476
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001477- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1478 the corresponding tests now pass.
1479
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001480- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1481 it was calling the wrong open() function.
1482
Fred Drake9a0a65b2008-12-04 19:24:50 +00001483- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1484 support unusual filenames (such as those containing semi-colons) in
1485 Content-Disposition headers.
1486
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001487- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1488 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1489
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001490- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1491 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1492 and getservbyport().
1493
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001494- Windows locale mapping updated to Vista.
1495
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001496Tools/Demos
1497-----------
1498
Antoine Pitrou8a681222009-02-07 17:13:31 +00001499- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1500 and make it 2.6-compatible.
1501
Guilherme Poloa7d27972009-01-28 16:06:51 +00001502- Ttk demos added in Demo/tkinter/ttk/
1503
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001504- Issue #4677: add two list comprehension tests to pybench.
1505
Georg Brandlb1441c72009-01-03 22:33:39 +00001506
1507Build
1508-----
1509
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001510- Issue #6094: Build correctly with Subversion 1.7.
1511
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001512- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1513
Antoine Pitrou8966c992009-05-01 21:18:27 +00001514- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1515 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1516
Matthias Klose55708cc2009-04-30 08:06:49 +00001517- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001518 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001519
Matthias Klose906785c2009-02-22 23:18:38 +00001520- Link the shared python library with $(MODLIBS).
1521
Martin v. Löwis11f72102009-02-10 13:13:30 +00001522- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1523
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001524- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1525
Martin v. Löwise97637d2009-01-11 09:45:11 +00001526- Issue #4895: Use _strdup on Windows CE.
1527
Georg Brandlb1441c72009-01-03 22:33:39 +00001528- Issue #4472: "configure --enable-shared" now works on OSX
1529
1530- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1531
1532- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1533
1534- Issue #4289: Remove Cancel button from AdvancedDlg.
1535
1536- Issue #1656675: Register a drop handler for .py* files on Windows.
1537
1538- Issue #4120: Exclude manifest from extension modules in VS2008.
1539
1540- Issue #4091: Install pythonxy.dll in system32 again.
1541
1542- Issue #4018: Disable "for me" installations on Vista.
1543
1544- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1545
1546- Issue #4204: Fixed module build errors on FreeBSD 4.
1547
1548
1549C-API
1550-----
1551
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001552- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1553 NUL: Bogus TypeError detail string.
1554
Mark Dickinson21776072009-02-10 16:13:25 +00001555- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1556 for negative arguments. Previously, it raised TypeError.
1557
Georg Brandlb1441c72009-01-03 22:33:39 +00001558- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1559
1560- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1561 the GIL is released, or owned by another thread.
1562
1563- Issue #4122: On Windows, fix a compilation error when using the
1564 Py_UNICODE_ISSPACE macro in an extension module.
1565
1566
Mark Dickinsone675f082008-12-11 21:56:00 +00001567Extension Modules
1568-----------------
1569
Gregory P. Smith365a1862009-02-12 07:35:29 +00001570- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1571 supporting objects as input no matter how it was compiled (built in
1572 implementations or external openssl library).
1573
Mark Dickinson29500f62009-01-15 15:36:10 +00001574- Issue #4397: Fix occasional test_socket failure on OS X.
1575
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001576- Issue #4279: Fix build of parsermodule under Cygwin.
1577
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001578- Issue #4751: hashlib now releases the GIL when hashing large buffers
1579 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1580 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1581
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001582- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1583
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001584- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1585 or decompress several streams at once on multi-CPU systems. Also, the GIL
1586 is now released when computing the CRC of a large buffer. Patch by ebfe.
1587
Georg Brandlb1441c72009-01-03 22:33:39 +00001588- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1589
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001590- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1591
Mark Dickinsone675f082008-12-11 21:56:00 +00001592- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1593 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001594
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001595- Issue #4583: array.array would not always prohibit resizing when a buffer
1596 has been exported, resulting in an interpreter crash when accessing the
1597 buffer.
1598
Martin v. Löwis841edad2008-11-30 10:36:49 +00001599
Jack Diederiche0cbd692009-04-01 04:27:09 +00001600- Issue #5228: Make functools.partial objects can now be pickled.
1601
Guilherme Polo9de29af2009-01-28 20:40:48 +00001602Tests
1603-----
1604
Antoine Pitrou88909542009-06-29 13:54:42 +00001605- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1606 regression tests in parallel, shortening the total runtime.
1607
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001608- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1609 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1610 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1611 skip the tests if DISPLAY is defined but can't be used.
1612
R. David Murraya21e4ca2009-03-31 23:16:50 +00001613- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001614 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001615 from test support, which does the conversion.
1616
Guilherme Polo9de29af2009-01-28 20:40:48 +00001617- Issue #5083: New 'gui' resource for regrtest.
1618
1619
Brett Cannon7317c1e2008-11-25 19:19:17 +00001620Docs
1621----
1622
Georg Brandl52b92cc2008-05-25 09:43:03 +00001623
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001624**(For information about older versions, consult the HISTORY file.)**