blob: dc33c569d8e2206b9a803bec847c1d254eab6026 [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
Matthias Klosed4337802009-09-13 15:29:48 +00007What's New in Python 3.1.2?
Benjamin Petersone8fb2032009-06-27 22:03:18 +00008===========================
9
Matthias Klosed4337802009-09-13 15:29:48 +000010*Release date: 20xx-xx-xx*
Benjamin Petersone8fb2032009-06-27 22:03:18 +000011
12Core and Builtins
13-----------------
14
Antoine Pitrou2795e6c2009-12-12 19:26:06 +000015- Issue #7466: segmentation fault when the garbage collector is called
16 in the middle of populating a tuple. Patch by Florent Xicluna.
17
Amaury Forgeot d'Arcea315ac2009-12-01 22:03:44 +000018- Issue #7419: setlocale() could crash the interpreter on Windows when called
19 with invalid values.
20
Amaury Forgeot d'Arc36dfe782009-11-30 00:16:44 +000021- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
22 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
23
Ronald Oussoren1b2cad02009-11-19 17:30:05 +000024- Issue #7085: Fix crash when importing some extensions in a thread
25 on MacOSX 10.6.
26
Mark Dickinsonb6447512009-11-15 10:17:48 +000027- Issue #7298: fixes for range and reversed(range(...)). Iteration
28 over range(a, b, c) incorrectly gave an empty iterator when a, b and
29 c fit in C long but the length of the range did not. Also fix
30 several cases where reversed(range(a, b, c)) gave wrong results, and
31 fix a refleak for reversed(range(a, b, c)) with large arguments.
32
Raymond Hettingera9311a32009-11-01 21:02:38 +000033- Issue #7244: itertools.izip_longest() no longer ignores exceptions
34 raised during the formation of an output tuple.
35
Benjamin Peterson7dc5ac52009-10-29 01:22:38 +000036- Issue #3297: On wide unicode builds, do not split unicode characters into
37 surrogates.
38
Antoine Pitroucefb3162009-10-20 22:08:36 +000039- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
40 fixes the problem of some exceptions being thrown at shutdown when the
41 interpreter is killed. Patch by Adam Olsen.
42
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000043- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitroueda95e92009-10-19 19:47:59 +000044 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000045
Mark Dickinson2bbeb0e2009-09-29 19:24:38 +000046- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
47 of producing internally inconsistent Python longs.
48
Philip Jenvey962b05c2009-09-29 05:03:48 +000049- Issue #6990: Fix threading.local subclasses leaving old state around
50 after a reference cycle GC which could be recycled by new locals.
51
Mark Dickinson424d75a2009-09-06 10:20:23 +000052- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
53
Amaury Forgeot d'Arcaf0312a2009-08-29 23:19:16 +000054- Issue #6750: A text file opened with io.open() could duplicate its output
55 when writing from multiple threads at the same time.
56
Matthias Klosed4337802009-09-13 15:29:48 +000057
58Library
59-------
60
Senthil Kumaran4b9fbeb2009-12-20 07:18:22 +000061- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
62 Tatsuhiro Tsujikawa.
63
Antoine Pitrouc8428d32009-12-14 18:23:30 +000064- Issue #4757: `zlib.compress` and other methods in the zlib module now
65 raise a TypeError when given an `str` object (rather than a `bytes`-like
66 object). Patch by Victor Stinner and Florent Xicluna.
67
Benjamin Peterson6b59f772009-12-13 19:30:15 +000068- Issue #7349: Make methods of file objects in the io module accept None as an
69 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
70 the same as passing no argument.
71
R. David Murraya6cdd832009-12-12 18:38:24 +000072- Issue #5949: added check for correct lineends in input from IMAP server
73 in imaplib.
74
Raymond Hettinger64eaa202009-12-10 05:36:11 +000075- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
76
Antoine Pitrou4fad6bd2009-12-08 16:00:03 +000077- Issue #6986: Fix crash in the JSON C accelerator when called with the
78 wrong parameter types. Patch by Victor Stinner.
79
Tarek Ziadéd26d5382009-12-06 09:30:47 +000080- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
81 generated in Distutils. Patch by Stephen Emslie.
82
Martin v. Löwis8ab31012009-12-03 21:14:10 +000083- Issue #4120: Drop reference to CRT from manifest when building extensions with
84 msvc9compiler.
85
Raymond Hettinger6c8ee7a2009-11-30 21:55:17 +000086- Issue #7410: deepcopy of itertools.count was resetting the count.
87
Antoine Pitroubcc63a82009-11-28 16:16:09 +000088- Issue #4486: When an exception has an explicit cause, do not print its
89 implicit context too. This affects the `traceback` module as well as
90 built-in exception printing.
91
Senthil Kumarand884f8a2009-11-23 19:06:11 +000092- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
93
Tarek Ziadéfd9ac222009-11-19 05:41:34 +000094- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
95 be 2.
96
Raymond Hettingerb868e632009-11-19 01:02:56 +000097- Issue #3976: pprint for sets, frozensets, and dicts now succeed when
98 they contain unorderable types.
99
Benjamin Peterson3a2249d2009-11-19 21:26:17 +0000100- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
101 of __str__.
Benjamin Petersona1f9c042009-11-19 03:10:36 +0000102
Lars Gustäbel7dfcef52009-11-18 21:11:27 +0000103- Issue #7341: Close the internal file object in the TarFile constructor in
104 case of an error.
105
Tarek Ziadé2cc70482009-11-18 10:19:38 +0000106- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
107 Windows box. Help provided by David Bolen.
108
Nick Coghlanb830a232009-11-15 23:27:31 +0000109- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
110
Antoine Pitrou4def5152009-11-13 22:39:40 +0000111- Issue #7318: multiprocessing now uses a timeout when it fails to establish
112 a connection with another process, rather than looping endlessly. The
113 default timeout is 20 seconds, which should be amply sufficient for
114 local connections.
115
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000116- Issue #7282: Fix a memory leak when an RLock was used in a thread other
117 than those started through `threading.Thread` (for example, using
118 `_thread.start_new_thread()`).
119
Brett Cannon3d26b952009-11-07 23:57:20 +0000120- Issue #7187: Importlib would not silence the IOError raised when trying to
121 write new bytecode when it was made read-only.
122
Antoine Pitroua9546072009-11-05 13:51:19 +0000123- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
124 which are part of a reference cycle.
125
Antoine Pitrou868b5782009-11-02 11:40:19 +0000126- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
127 a modification is done through it. This fixes inconsistencies and test
128 failures on systems with slightly bogus mtime behaviour.
129
Gregory P. Smith6c4a7252009-11-01 20:36:24 +0000130- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
131
Gregory P. Smithfc1c75d2009-11-01 18:48:31 +0000132- Issue #7246 & Issue #7208: getpass now properly flushes input before
133 reading from stdin so that existing input does not confuse it and
134 lead to incorrect entry or an IOError. It also properly flushes it
135 afterwards to avoid the terminal echoing the input afterwards on
136 OSes such as Solaris.
137
Mark Dickinson9050bb22009-10-29 12:25:07 +0000138- Issue #7233: Fix a number of two-argument Decimal methods to make
139 sure that they accept an int or long as the second argument. Also
140 fix buggy handling of large arguments (those with coefficient longer
141 than the current precision) in shift and rotate.
142
Antoine Pitroua3af0eb2009-10-27 17:49:21 +0000143- Issue #7205: Fix a possible deadlock when using a BZ2File object from
144 several threads at once.
145
Tarek Ziadéc76bcea2009-10-25 23:16:51 +0000146- Issue #7071: byte-compilation in Distutils is now done with respect to
147 sys.dont_write_bytecode.
148
Mark Dickinson2d4fce22009-10-20 13:40:25 +0000149- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
150 larger than emax.
151
Antoine Pitroueda95e92009-10-19 19:47:59 +0000152- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
153 platforms, and assorted locale fixes by Derk Drukker.
154
Antoine Pitroue566bda2009-10-19 18:24:35 +0000155- Issue #5833: Fix extra space character in readline completion with the
156 GNU readline library version 6.0.
157
Senthil Kumaran11301632009-10-11 06:07:46 +0000158- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
159
R. David Murray290e9392009-10-10 00:57:04 +0000160- Issue #7082: When falling back to the MIME 'name' parameter, the
161 correct place to look for it is the Content-Type header.
162
Benjamin Peterson0c7f9c92009-10-09 21:53:27 +0000163- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
164 builtin tokenizer.
165
Mark Dickinsonb0907612009-10-07 19:24:43 +0000166- Issue #7048: Force Decimal.logb to round its result when that result
167 is too large to fit in the current precision.
168
Antoine Pitrou384c9202009-09-21 21:42:29 +0000169- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitroueda95e92009-10-19 19:47:59 +0000170 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrou384c9202009-09-21 21:42:29 +0000171
Tarek Ziadé0cdc3692009-09-21 13:59:07 +0000172- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
173
Thomas Heller49ac2ac2009-09-18 20:09:57 +0000174- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
175 does now always result in NULL.
176
Thomas Heller35888e22009-09-18 19:46:56 +0000177- Issue #5042: Structure sub-subclass does now initialize correctly
178 with base class positional arguments.
179
Eric Smith53cda532009-09-18 13:59:58 +0000180- Issue #6882: Import uuid creates zombies processes.
181
Matthias Kloseb1117432009-09-13 15:31:14 +0000182- Issue #6635: Fix profiler printing usage message.
183
Matthias Klosed4337802009-09-13 15:29:48 +0000184- Issue #6888: pdb's alias command was broken when no arguments were given.
185
186- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
187 returning NaN or raising InvalidContext. Also, fix infinite recursion
188 in long(Decimal('nan')).
189
190- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
191 with no type specifier.
192
193- Issue #6239: ctypes.c_char_p return value must return bytes.
194
195- Issue #6838: Use a list to accumulate the value instead of
196 repeatedly concatenating strings in http.client's
197 HTTPResponse._read_chunked providing a significant speed increase
198 when downloading large files servend with a Transfer-Encoding of 'chunked'.
199
200- Have importlib raise ImportError if None is found in sys.modules for a
201 module.
202
203- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
204 payloads are now ordered by integer value rather than lexicographically.
205
206- Issue #6163: Fixed HP-UX runtime library dir options in
207 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
208 Michael Haubenwallner.
209
210Extension Modules
211-----------------
212
Mark Dickinson015fa032009-10-08 16:02:50 +0000213- Issue #7078: Set struct.__doc__ from _struct.__doc__.
214
Matthias Klosed4337802009-09-13 15:29:48 +0000215- Issue #6848: Fix curses module build failure on OS X 10.6.
216
Mark Dickinson95078872009-10-04 18:47:48 +0000217Tests
218-----
219
R. David Murray14520952009-12-20 17:37:25 +0000220- Issue #7376: instead of running a self-test (which was failing) when called
221 with no arguments, doctest.py now gives a usage message.
222
R. David Murrayc009b442009-12-14 22:57:04 +0000223- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
224 instead of a hardcoded port number in test_rapid_restart.
225
R. David Murray8054a5d2009-12-04 00:13:33 +0000226- Issue #7431: use TESTFN in test_linecache instead of trying to create a
227 file in the Lib/test directory, which might be read-only for the
228 user running the tests.
229
R. David Murray9f9b46c2009-11-15 00:35:37 +0000230- Issue #7324: add a sanity check to regrtest argument parsing to
231 catch the case of an option with no handler.
232
Antoine Pitrouca154092009-11-13 16:31:51 +0000233- Issue #6551: test_zipimport could import and then destroy some modules of
234 the encodings package, which would make other tests fail further down
235 the road because the internally cached encoders and decoders would point
236 to empty global variables.
237
Antoine Pitroub78ba6b2009-11-11 21:01:33 +0000238- Issue #7295: Do not use a hardcoded file name in test_tarfile.
239
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000240- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
241 primitives such as Lock, RLock, Condition, Event and Semaphore.
242
Brett Cannon142d2362009-11-05 01:34:30 +0000243- Issue #7248 (part 2): Use a unique temporary directory for importlib source
244 tests instead of tempfile.tempdir. This prevents the tests from sharing state
245 between concurrent executions on the same system.
246
247- Issue #7248: In importlib.test.source.util a try/finally block did not make
248 sure that some referenced objects actually were created in the block before
249 calling methods on the object.
250
Antoine Pitrou56e00ca2009-10-27 13:08:37 +0000251- Issue #7055: test___all__ now greedily detects all modules which have an
252 __all__ attribute, rather than using a hardcoded and incomplete list.
253
R. David Murray6bf5a2e82009-10-07 23:54:53 +0000254- Issue #7058: Added save/restore for argv and os.environ to runtest_inner
255 in regrtest, with warnings if the called test modifies them.
256
Mark Dickinson95078872009-10-04 18:47:48 +0000257- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
258
Matthias Klosed4337802009-09-13 15:29:48 +0000259Build
260-----
261
Mark Dickinsonee2dd4a2009-10-31 10:20:38 +0000262- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
263 compiles correctly under gcc on x86-64. This fixes a reported
264 problem with the --with-tsc build on x86-64.
265
Matthias Klosed4337802009-09-13 15:29:48 +0000266- Issue #6802: Fix build issues on MacOSX 10.6
267
268- Issue #6801 : symmetric_difference_update also accepts |.
269 Thanks to Carl Chenet.
270
271Documentation
272-------------
273
274- Issue #6556: Fixed the Distutils configuration files location explanation
275 for Windows.
276
277
278What's New in Python 3.1.1?
279===========================
280
281*Release date: 2009-08-13*
282
283Core and Builtins
284-----------------
285
Benjamin Peterson044446b2009-08-15 13:25:28 +0000286- Issue #6707: dir() on an uninitialized module caused a crash.
287
Georg Brandl069bcc32009-07-22 12:06:11 +0000288- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
289
Raymond Hettinger63853bb2009-07-27 20:29:18 +0000290- Issue #6573: set.union() stopped processing inputs if an instance of self
291 occurred in the argument chain.
292
R. David Murray10fc3952009-07-19 02:25:02 +0000293- Issue #6070: On posix platforms import no longer copies the execute bit
294 from the .py file to the .pyc file if it is set.
295
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +0000296- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
297 object, and not an int. Fix the corresponding error message, and the
298 documentation.
299
Mark Dickinson8c1e2942009-06-30 15:46:37 +0000300- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
301 This fixes a build failure on HP-UX: int32_t and uint32_t are
302 defined in inttypes.h instead of stdint.h on that platform.
303
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +0000304- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +0000305 the 'surrogateescape' error handler, a string which contains unpaired
306 surrogates.
307
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000308C-API
309-----
310
Mark Dickinsond0ed0db2009-12-03 11:01:53 +0000311- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
312 in PyArg_ParseTupleAndKeywords.
313
Georg Brandl878c3b02009-08-13 08:36:43 +0000314- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
315 NUL: Bogus TypeError detail string.
316
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000317- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +0000318
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000319- The code flags for old __future__ features are now available again.
320
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000321Library
322-------
323
Georg Brandle6700e92009-08-13 08:39:33 +0000324- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
325 DO/DONT correctly.
326
Georg Brandl8a038b22009-08-13 07:52:08 +0000327- Issue #6126: Fixed pdb command-line usage.
328
Antoine Pitrou0473e562009-08-06 20:52:43 +0000329- Issue #6629: Fix a data corruption issue in the new I/O library, which could
330 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
331 "wb+" mode) after having buffered a certain amount of data for reading. This
332 bug was not present in the pure Python implementation.
333
Mark Dickinson825b9932009-08-06 16:08:07 +0000334- Issue #6622: Fix "local variable 'secret' referenced before
335 assignment" bug in POP3.apop.
336
Raymond Hettinger99a13ee2009-08-04 19:13:37 +0000337- Issue #6637: defaultdict.copy() did not work when the default factory
338 was left unspecified. Also, the eval/repr round-trip would fail when
339 the default_factory was None.
340
Mark Dickinson34776ca2009-08-02 20:09:59 +0000341- Issue #2715: Remove remnants of Carbon.File from binhex module.
342
Mark Dickinson8d238292009-08-02 10:16:33 +0000343- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +0000344decimal digits in input, as recommended by the standard. Previously
345it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +0000346
R. David Murraya44c6b32009-07-29 15:40:30 +0000347- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +0000348unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
349descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +0000350
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000351- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +0000352working through proxy. Original patch by Christopher Li, changes made by
353Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000354
Brett Cannon2e3155e2009-07-20 03:22:43 +0000355- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +0000356the documentation said it did even though the code in PyLoader relied on the
357abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +0000358
Mark Dickinson8d156432009-07-18 14:43:10 +0000359- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +0000360know how to handle a comparison without loss of precision. Also add
361correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +0000362
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000363- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +0000364
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000365- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +0000366reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000367
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000368- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +0000369syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000370
Georg Brandlae83d6e2009-08-13 09:04:31 +0000371- Issue #3392: The subprocess communicate() method no longer fails in select()
372 when file descriptors are large; communicate() now uses poll() when possible.
373
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000374- Issue #6369: Fix an RLE decompression bug in the binhex module.
375
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000376- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
377
Georg Brandlae83d6e2009-08-13 09:04:31 +0000378- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
379 sys.path.
380
381Extension Modules
382-----------------
383
Brett Cannon0c811072009-08-13 19:59:04 +0000384- Fix a segfault in expat.
385
Georg Brandlae83d6e2009-08-13 09:04:31 +0000386- Issue #4509: array.array objects are no longer modified after an operation
387 failing due to the resize restriction in-place when the object has exported
388 buffers.
389
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000390Build
391-----
392
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000393- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000394directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000395
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000396- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000397extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000398
Brett Cannon10e35b32009-07-20 00:19:49 +0000399Test
400----
401
402- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000403testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000404
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000405
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000406What's New in Python 3.1?
407=========================
408
409*Release date: 27-June-2009*
410
411Core and Builtins
412-----------------
413
Mark Dickinsonad195562009-06-24 19:01:32 +0000414- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000415large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000416
Raymond Hettinger159eac92009-06-23 20:38:54 +0000417- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000418because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000419
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000420Library
421-------
422
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000423- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000424argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000425
Facundo Batista10706e22009-06-19 20:34:30 +0000426- Issue #6274: Fixed possible file descriptors leak in subprocess.py
427
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000428- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000429io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000430
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000431- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000432(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000433
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000434- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000435store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000436
Matthias Kloseab2b7552009-06-22 13:05:52 +0000437Extension Modules
438-----------------
439
440- Issue #5590: Remove unused global variable in pyexpat extension.
441
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000442
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000443What's New in Python 3.1 Release Candidate 2?
444=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000445
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000446*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000447
448Core and Builtins
449-----------------
450
Raymond Hettinger94f55832009-06-12 18:40:16 +0000451- Fixed SystemError triggered by "range([], 1, -1)".
452
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000453- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000454(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000455
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000456- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000457possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000458
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000459- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000460 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000461
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000462Library
463-------
464
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000465- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000466expression string pattern was trying to match against a bytes returned by
467Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000468
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000469- Issue #6258: Support AMD64 in bdist_msi.
470
R. David Murray58641de2009-06-12 15:33:19 +0000471- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000472binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000473
Vinay Sajipaffbd872009-06-11 10:11:47 +0000474- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000475TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000476
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000477- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000478errors property. Additionally, the errors and encoding properties of StringIO
479are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000480
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000481- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000482or dumping pickles with a 2.x-compatible protocol, in order to make data
483sharing and migration easier. This behaviour can be disabled using the
484new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000485
Raymond Hettinger40925d22009-06-04 18:32:39 +0000486- Removed the ipaddr module.
487
Georg Brandlb54d8012009-06-04 09:11:51 +0000488- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000489base64.{encode,decode}bytes which reflects what type they accept and return.
490The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000491
Georg Brandl317185a2009-06-04 09:00:56 +0000492- Issue #5767: Remove sgmlop support from xmlrpc.client.
493
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000494- Issue #6150: Fix test_unicode on wide-unicode builds.
495
Antoine Pitrouc06de472009-05-30 21:04:26 +0000496- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000497parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000498
Martin v. Löwis79b13872009-06-01 04:13:14 +0000499Windows
500-------
501
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000502- Issue #6221: Delete test registry key before running the test.
503
Martin v. Löwis79b13872009-06-01 04:13:14 +0000504- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
505
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000506C-API
507-----
508
509- Issue #5735: Python compiled with --with-pydebug should throw an
510 ImportError when trying to import modules compiled without
511 --with-pydebug, and vice-versa.
512
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000513
Brett Cannonc6d936e2009-06-07 20:09:53 +0000514Build
515-----
516
517- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
518 added LIBS to OS X framework builds.
519
Ronald Oussoren99aab652009-06-08 21:22:57 +0000520- Issue #5809: Specifying both --enable-framework and --enable-shared is
521 an error. Configure now explicity tells you about this.
522
523
Brett Cannonc6d936e2009-06-07 20:09:53 +0000524
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000525What's New in Python 3.1 release candidate 1?
526=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000527
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000528*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000529
530Core and Builtins
531-----------------
532
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000533- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
534 of the command line.
535
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000536- Issue #6012: Add cleanup support to O& argument parsing.
537
Eric Smith41669ca2009-05-23 14:23:22 +0000538- Issue #6089: Fixed str.format with certain invalid field specifiers
539 that would raise SystemError.
540
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000541- Issue #5982: staticmethod and classmethod now expose the wrapped
542 function with __func__.
543
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000544- Added support for multiple context managers in the same with-statement.
545 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000546
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000547- Issue #5829: complex("1e500") no longer raises OverflowError. This
548 makes it consistent with float("1e500") and interpretation of real
549 and imaginary literals.
550
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000551- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
552
R. David Murraydd226ea2009-05-13 12:27:21 +0000553- Issue #5994: the marshal module now has docstrings.
554
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000555- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
556 (1) inf and nan strings with trailing whitespace were incorrectly
557 rejected; (2) parsing of strings representing infinities and nans
558 was locale aware; and (3) the interpretation of fromhex('-nan')
559 didn't match that of float('-nan').
560
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000561Library
562-------
563
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000564- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
565
R. David Murrayfb123912009-05-28 18:19:00 +0000566- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
567
R. David Murray1f1b9d32009-05-27 20:56:59 +0000568- Issue #6121: pydoc now ignores leading and trailing spaces in the
569 argument to the 'help' function.
570
Georg Brandlfaf41492009-05-26 18:31:11 +0000571- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
572 arguments for strings with a space in them.
573
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000574- collections.namedtuple() was not working with the following field
575 names: cls, self, tuple, itemgetter, and property.
576
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000577- In unittest, using a skipping decorator on a class is now equivalent to
578 skipping every test on the class. The ClassTestSuite class has been removed.
579
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000580- Issue #6050: Don't fail extracting a directory from a zipfile if
581 the directory already exists.
582
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000583- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
584 than an int, which makes some operations possible under 64-bit Linux (e.g.
585 DN_MULTISHOT with F_NOTIFY).
586
Antoine Pitrou716c4442009-05-23 19:04:03 +0000587- Issue #5761: Add the name of the underlying file to the repr() of various
588 IO objects.
589
R. David Murraycaa27b72009-05-23 18:49:56 +0000590- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
591 by Musashi Tamura, tests by Marcin Bachry.
592
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000593- Issue #1983: Fix functions taking or returning a process identifier to use
594 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
595 a process identifier type wider than the standard C integer type.
596
R. David Murray87e20742009-05-23 01:30:26 +0000597- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
598 Patch by Farhan Ahmad, test by Marcin Bachry.
599
Antoine Pitrou6e610062009-05-15 17:04:50 +0000600- Issue #2116: Weak references and weak dictionaries now support copy()ing and
601 deepcopy()ing.
602
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000603- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
604
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000605- Issue #5918: Fix a crash in the parser module.
606
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000607- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
608
Antoine Pitroue4501852009-05-14 18:55:55 +0000609- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
610 library. This means, for example, that opening an UTF-16 text file in
611 append mode doesn't add a BOM at the end of the file if the file isn't
612 empty.
613
R. David Murray74b89242009-05-13 17:33:03 +0000614- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
615 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
616 corrects a pydoc regression.
617
R. David Murray99352742009-05-07 18:24:38 +0000618- Issue 5955: aifc's close method did not close the file it wrapped,
619 now it does. This also means getfp method now returns the real fp.
620
Benjamin Peterson932073a2009-05-23 16:14:33 +0000621Installation
622------------
623
624- Issue #6047: fullinstall has been removed because Python 3's executable will
625 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000626
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000627- Lib/smtpd.py is no longer installed as a script.
628
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000629Extension Modules
630-----------------
631
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000632- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000633
Martin v. Löwise23c8682009-05-29 16:01:34 +0000634- Issue #4873: Fix resource leaks in error cases of pwd and grp.
635
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000636- Issue #6093: Fix off-by-one error in locale.strxfrm.
637
Benjamin Peterson744af442009-05-23 18:51:49 +0000638- The _functools and _locale modules are now built into the libpython shared
639 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000640
Antoine Pitrou20327222009-05-24 20:39:11 +0000641Build
642-----
643
644- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
645 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
646 Clinton Roy.
647
Brett Cannon1262e7c2009-05-11 01:47:11 +0000648Tests
649-----
650
651- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
652 tests on darwin even when the OS was installed on a case-sensitive
653 filesystem. Also fixed tests that should not be run when
654 sys.dont_write_bytecode is true.
655
656
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000657What's New in Python 3.1 beta 1?
658================================
659
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000660*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000661
662Core and Builtins
663-----------------
664
Mark Dickinson865e01a2009-05-07 16:37:01 +0000665- Issue #5914: Add new C API function PyOS_string_to_double, and
666 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
667
Eric Smith741191f2009-05-06 13:08:15 +0000668- Issue #3382: float.__format__, complex.__format__, and %-formatting
669 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
670 affects nan -> NAN and inf -> INF.
671
Mark Hammond5a607a32009-05-06 08:04:54 +0000672- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
673 in all operations, including splitdrive, split, etc. splitunc() now issues
674 a PendingDeprecation warning.
675
Eric Smith63376222009-05-05 14:04:18 +0000676- Issue #5920: For float.__format__, change the behavior with the
677 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
678 to be like 'g' but with at least one decimal point and with a
679 default precision of 12. Previously, the behavior the same but with
680 a default precision of 6. This more closely matches str(), and
681 reduces surprises when adding alignment flags to the empty
682 presentation type. This also affects the new complex.__format__ in
683 the same way.
684
Martin v. Löwis011e8422009-05-05 04:43:17 +0000685- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
686
R. David Murrayb18500d2009-05-04 22:59:07 +0000687- Issue #5890: in subclasses of 'property' the __doc__ attribute was
688 shadowed by classtype's, even if it was None. property now
689 inserts the __doc__ into the subclass instance __dict__.
690
Antoine Pitrou244651a2009-05-04 18:56:13 +0000691- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
692 sequences. Patch by Nick Barnes and Victor Stinner.
693
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000694- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000695
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000696- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
697 received a new method, detach(). detach() disconnects the underlying stream
698 from the buffer or text IO and returns it.
699
Mark Dickinson33841c32009-05-01 15:37:04 +0000700- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
701 floats with absolute value over 1e50. Also remove length
702 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
703 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000704
Eric Smith741191f2009-05-06 13:08:15 +0000705- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000706 format(complex(1, 2./3), '.5') now produces a sensible result.
707
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000708- Issue #5864: Fix empty format code formatting for floats so that it
709 never gives more than the requested number of significant digits.
710
Eric Smith6dc46f52009-04-27 20:39:49 +0000711- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
712 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
713
Eric Smithcc32a112009-04-26 21:35:14 +0000714- Issue #5835: Deprecate PyOS_ascii_formatd.
715
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000716- Issue #4971: Fix titlecase for characters that are their own
717 titlecase, but not their own uppercase.
718
Benjamin Peterson193152c2009-04-25 01:08:45 +0000719- Issue #5283: Setting __class__ in __del__ caused a segfault.
720
Mark Dickinsonad476da2009-04-23 19:14:16 +0000721- Issue #5816: complex(repr(z)) now recovers z exactly, even when
722 z involves nans, infs or negative zeros.
723
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000724- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000725
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000726- Issue #1869 (and many duplicates): make round(x, n) correctly
727 rounded for a float x, by using the decimal <-> binary conversions
728 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
729 consistently agrees with format(x, '.2f').
730
Benjamin Petersonae937c02009-04-18 20:54:08 +0000731- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
732 some builtin types.
733
Eric Smith0923d1d2009-04-16 20:16:10 +0000734- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
735
Eric Smith35e84722009-04-16 20:21:28 +0000736- Issue #5515: str.format() type 'n' combined with commas and leading
737 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000738
739- Implement PEP 378, Format Specifier for Thousands Separator, for
740 floats.
741
Mark Dickinson3370cce2009-04-17 22:40:53 +0000742- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000743 1e11, not 1e12. This avoids printing 13 significant digits in
744 situations where only 12 of them are correct. Example problem
745 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
746 long time.)
747
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000748- Issue #1580: On most platforms, use a 'short' float repr: for a
749 finite float x, repr(x) now outputs a string based on the shortest
750 sequence of decimal digits that rounds to x. Previous behaviour was
751 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000752 Another minor difference is that the new repr switches to
753 exponential notation at 1e16 instead of the previous 1e17; this
754 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000755
756 There's a new sys attribute sys.float_repr_style, which takes
757 the value 'short' to indicate that we're using short float repr,
758 and 'legacy' if the short float repr isn't available for one
759 reason or another.
760
761 The float repr change involves incorporating David Gay's 'perfect
762 rounding' code into the Python core (it's in Python/dtoa.c). As a
763 secondary consequence, all string-to-float and float-to-string
764 conversions (including all float formatting operations) will be
765 correctly rounded on these platforms.
766
767 See issue 1580 discussions for details of platforms for which
768 this change does not apply.
769
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000770- Issue #5759: float() didn't call __float__ on str subclasses.
771
Georg Brandlabc38772009-04-12 15:51:51 +0000772- The string.maketrans() function is deprecated; there is a new static method
773 maketrans() on the bytes and bytearray classes. This removes confusion about
774 the types string.maketrans() is supposed to work with, and mirrors the
775 methods available on the str class.
776
R. David Murraydc6da8a2009-04-09 22:16:43 +0000777- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
778 its clarity and its speed.
779
Matthias Klose091c7b12009-04-07 13:24:27 +0000780- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
781 to avoid compiler warnings.
782
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000783- Issue #3739: The unicode-internal encoder now reports the number of characters
784 consumed like any other encoder (instead of the number of bytes).
785
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000786Installation
787------------
788
789- Issue #5756: Install idle and pydoc with a 3 suffix.
790
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000791Library
792-------
793
Martin v. Löwis403117a2009-05-24 19:19:17 +0000794- Issue #5311: bdist_msi can now build packages that do not depend on a
795 specific Python version.
796
Raymond Hettingereb816952009-05-29 01:22:18 +0000797- Issue #5150: IDLE's format menu now has an option to strip trailing
798 whitespace.
799
Vinay Sajipaffbd872009-06-11 10:11:47 +0000800- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000801 the right type checkings anymore.
802
Thomas Heller00cfc372009-05-05 19:04:40 +0000803- Issue #4875: On win32, ctypes.util.find_library does no longer
804 return directories.
805
Georg Brandl243ad662009-05-05 09:00:19 +0000806- Issue #5142: Add the ability to skip modules while stepping to pdb.
807
Georg Brandl991f9202009-05-05 08:31:54 +0000808- Issue #1309567: Fix linecache behavior of stripping subdirectories when
809 looking for files given by a relative filename.
810
Georg Brandleaa84ef2009-05-05 08:14:33 +0000811- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
812 turtle demos in Demo/turtle.
813
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000814- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
815 extracting a file to the root directory.
816
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000817- Issue #5913: os.listdir() should fail for empty path on windows.
818
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000819- Issue #5084: unpickling now interns the attribute names of pickled objects,
820 saving memory and avoiding growth in size of subsequent pickles. Proposal
821 and original patch by Jake McGuire.
822
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000823- The json module now works exclusively with str and not bytes.
824
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000825- Issue #3959: The ipaddr module has been added to the standard library.
826 Contributed by Google.
827
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000828- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
829 error when a named pipe is encountered, rather than blocking infinitely.
830
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000831- Issue #5857: tokenize.tokenize() now returns named tuples.
832
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000833- Issue #4305: ctypes should now build again on mipsel-linux-gnu
834
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000835- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
836 string is already in normalized form, by performing a quick check beforehand.
837 Original patch by Rauli Ruohonen.
838
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000839- Issue #5853: calling a function of the mimetypes module from several threads
840 at once could hit the recursion limit if the mimetypes database hadn't been
841 initialized before.
842
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000843- Issue #5854: Updated __all__ to include some missing names and remove some
844 names which should not be exported.
845
Thomas Heller34596a92009-04-24 20:50:00 +0000846- Issue #3102: All global symbols that the _ctypes extension defines
847 are now prefixed with 'Py' or '_ctypes'.
848
849- Issue #5041: ctypes does now allow pickling wide character.
850
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000851- Issue #5812: For the two-argument form of the Fraction constructor,
852 Fraction(m, n), m and n are permitted to be arbitrary Rational
853 instances.
854
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000855- Issue #5812: Fraction('1e6') is valid: more generally, any string
856 that's valid for float() is now valid for Fraction(), with the
857 exception of strings representing NaNs and infinities.
858
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000859- Issue #5734: BufferedRWPair was poorly tested and had several glaring
860 bugs. Patch by Brian Quinlan.
861
R. David Murray9e94ddf2009-04-13 17:06:33 +0000862- Issue #1161031: fix readwrite select flag handling: POLLPRI now
863 results in a handle_expt_event call, not handle_read_event, and POLLERR
864 and POLLNVAL now call handle_close, not handle_expt_event. Also,
865 dispatcher now has an 'ignore_log_types' attribute for suppressing
866 log messages, which is set to 'warning' by default.
867
Matthias Klosea3d29e82009-04-07 13:13:10 +0000868- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
869 new arguments introduced in 2.5.
870
Walter Dörwald1b08b302009-04-25 14:13:56 +0000871- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
872 makeunicodedata.py and regenerated the Unicode database (This fixes
873 u'\u1d79'.lower() == '\x00').
874
Matthias Klose535336f2009-04-07 13:49:45 +0000875Extension Modules
876-----------------
877
Benjamin Petersone04b6272009-05-04 22:25:21 +0000878- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
879 pwd.
880
Mark Dickinsonea835e72009-04-19 20:40:33 +0000881- Issue #5463: In struct module, remove deprecated float coercion
882 for integer type codes: struct.pack('L', 0.3) should now raise
883 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
884 The version number has been bumped to 0.3.
885
Matthias Klose535336f2009-04-07 13:49:45 +0000886- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
887 using Berkley-DB.
888
Nick Coghlan47384702009-04-22 16:13:36 +0000889Tests
890-----
891
892- Issue #5354: New test support function import_fresh_module() makes
893 it easy to import both normal and optimised versions of modules.
894 test_heapq and test_warnings have been adjusted to use it, tests for
895 other modules with both C and Python implementations in the stdlib
896 can be adjusted to use it over time.
897
Walter Dörwald4ba80132009-04-25 12:48:43 +0000898- Issue #5837: Certain sequences of calls to set() and unset() for
899 support.EnvironmentVarGuard objects restored the environment variables
900 incorrectly on __exit__.
901
Benjamin Petersonb173f782009-05-05 22:31:58 +0000902C-API
903-----
904
905- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
906
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000907
Benjamin Petersond1735892009-03-07 18:46:21 +0000908What's New in Python 3.1 alpha 2?
909=================================
910
Benjamin Peterson88f14352009-04-04 21:06:52 +0000911*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000912
913Core and Builtins
914-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000915
Eric Smith1e1d7d22009-04-03 22:25:33 +0000916- Implement PEP 378, Format Specifier for Thousands Separator, for
917 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000918
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000919- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
920
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000921- Issue #5499: The 'c' code for argument parsing functions now only accepts a
922 byte, and the 'C' code only accepts a unicode character.
923
Georg Brandl406b3d82009-04-11 21:24:37 +0000924- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
925 when hitting the recursion limit under certain circumstances.
926
Brett Cannon0759dd62009-04-01 18:13:07 +0000927- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
928
Georg Brandlab6f2f62009-03-31 04:16:10 +0000929- Fix a segfault when running test_exceptions with coverage, caused by
930 insufficient checks in accessors of Exception.__context__.
931
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000932- Issue #5604: non-ASCII characters in module name passed to
933 imp.find_module() were converted to UTF-8 while the path is
934 converted to the default filesystem encoding, causing nonsense.
935
Benjamin Peterson09832742009-03-26 17:15:46 +0000936- Issue #5126: str.isprintable() returned False for space characters.
937
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000938- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
939 the end sys.path, for compatibility with the system install of Python.
940
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000941- Issue #4688: Add a heuristic so that tuples and dicts containing only
942 untrackable objects are not tracked by the garbage collector. This can
943 reduce the size of collections and therefore the garbage collection overhead
944 on long-running programs, depending on their particular use of datatypes.
945
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000946- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
947 improve its performance. Long divisions and remainder operations
948 are now between 50% and 150% faster.
949
Mark Dickinsonbd792642009-03-18 20:06:12 +0000950- Issue #4258: Make it possible to use base 2**30 instead of base
951 2**15 for the internal representation of integers, for performance
952 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
953 --enable-big-digits option to configure, which overrides the
954 default. Add sys.int_info structseq to provide information about
955 the internal format.
956
Mark Dickinson081dfee2009-03-18 14:47:41 +0000957- Issue #4474: PyUnicode_FromWideChar now converts characters outside
958 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
959 and sizeof(Py_UNICODE) == 2.
960
Eric Smith8ec90442009-03-14 12:29:34 +0000961- Issue #5237: Allow auto-numbered fields in str.format(). For
962 example: '{} {}'.format(1, 2) == '1 2'.
963
Antoine Pitrou652e7072009-03-13 19:25:20 +0000964- Issue #5392: when a very low recursion limit was set, the interpreter would
965 abort with a fatal error after the recursion limit was hit twice.
966
Matthias Klose042f1332009-04-04 14:32:42 +0000967- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
968 short file names.
969
Benjamin Petersond1735892009-03-07 18:46:21 +0000970Library
971-------
972
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000973- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000974 mailbox.MH.get_message().
975
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000976- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
977 error substitutions from non-strict codec error callbacks in
978 incrementalencoder and StreamWriter.
979
Georg Brandl33c28812009-04-01 23:07:29 +0000980- Issue #5656: Fix the coverage reporting when running the test suite with
981 the -T argument.
982
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000983- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
984
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000985- Issue #5624: Fix the _winreg module name still used in several modules.
986
Benjamin Petersona1b49012009-03-31 23:11:32 +0000987- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
988
Jesse Nollera9314042009-03-31 22:36:44 +0000989- Issue #5619: Multiprocessing children disobey the debug flag and causes
990 popups on windows buildbots. Patch applied to work around this issue.
991
Jesse Noller32d68c22009-03-31 18:48:42 +0000992- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
993
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000994- Issue #5387: Fixed mmap.move crash by integer overflow.
995
Jesse Nollerf8d00852009-03-31 03:25:07 +0000996- Issue #5261: Patch multiprocessing's semaphore.c to support context
997 manager use: "with multiprocessing.Lock()" works now.
998
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000999- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1000 bytes already but the failure was non-obvious.
1001
Jesse Noller7af4ef82009-03-30 16:47:15 +00001002- Issue #5177: Multiprocessing's SocketListener class now uses
1003 socket.SO_REUSEADDR on all connections so that the user no longer needs
1004 to wait 120 seconds for the socket to expire.
1005
Benjamin Peterson48e24782009-03-29 13:02:52 +00001006- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1007
Antoine Pitrou66994e12009-03-29 00:45:26 +00001008- Issue #1174606: Calling read() without arguments of an unbounded file
1009 (typically /dev/zero under Unix) could crash the interpreter.
1010
Benjamin Peterson59406a92009-03-26 17:10:29 +00001011- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1012 io.BufferedRandom have been deprecated for removal in Python 3.2.
1013
Lars Gustäbel42e00912009-03-22 20:34:29 +00001014- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1015 forever on incomplete input. That caused tarfile.open() to hang when used
1016 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1017 partial bzip2 compressed data.
1018
Mark Dickinson79f52032009-03-17 23:12:51 +00001019- Issue #2110: Add support for thousands separator and 'n' type
1020 specifier to Decimal.__format__
1021
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001022- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1023 '>' alignment characters.
1024
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001025- The error detection code in FileIO.close() could fail to reflect the `errno`
1026 value, and report it as -1 instead.
1027
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001028- Issue #5016: FileIO.seekable() could return False if the file position
1029 was negative when truncated to a C int. Patch by Victor Stinner.
1030
Mark Dickinsonae681df2009-03-21 10:26:31 +00001031Extension Modules
1032-----------------
1033
Benjamin Petersone099b372009-04-04 17:09:35 +00001034- Issue #5391: mmap now deals exclusively with bytes.
1035
Mark Dickinsonae681df2009-03-21 10:26:31 +00001036- Issue #5463: In struct module, remove deprecated overflow wrapping
1037 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001038 struct.error instead of returning b'\xff\xff\xff\xff'. The
1039 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1040 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001041
Benjamin Petersond1735892009-03-07 18:46:21 +00001042
Benjamin Petersona58a6262009-03-07 16:34:40 +00001043What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001044================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001045
Benjamin Petersona58a6262009-03-07 16:34:40 +00001046*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001047
1048Core and Builtins
1049-----------------
1050
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001051- The io module has been reimplemented in C for speed.
1052
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001053- Give dict views an informative __repr__.
1054
Eric Smith5e5c0db2009-02-20 14:25:03 +00001055- Issue #5247: Improve error message when unknown format codes are
1056 used when using str.format() with str, int, and float arguments.
1057
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001058- Issue #5249: time.strftime returned malformed string when format string
1059 contained non ascii character on windows.
1060
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001061- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1062 source has already been decoded into str.
1063
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001064- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1065 rotating the object pointer by 4 bits to the right.
1066
Mark Dickinson87ec0852009-02-09 17:15:59 +00001067- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1068 it now forces its argument to double before testing for infinity.
1069
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001070- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1071 returns a non-number type.
1072
Benjamin Peterson87618552009-02-08 15:00:52 +00001073- Issue #5182: Removed memoryview.__str__.
1074
Mark Dickinsonc008a172009-02-01 13:59:22 +00001075- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1076 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001077 the type definition cmpfunc. The tp_compare slot has been renamed
1078 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001079
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001080- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001081 were suppressing all exceptions. These include list() and bytearray().
1082
Mark Dickinson1124e712009-01-28 21:25:58 +00001083- Issue #4707: round(x, n) now returns an integer if x is an integer.
1084 Previously it returned a float.
1085
Antoine Pitroub52ec782009-01-25 16:34:23 +00001086- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1087 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1088 evaluation loop is compiled with a new dispatch mechanism which gives
1089 speedups of up to 20%, depending on the system, on various benchmarks.
1090
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001091- Issue #4874: Most builtin decoders now reject unicode input.
1092
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001093- Issue #4842: Don't allow trailing 'L' when constructing an integer
1094 from a string.
1095
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001096- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1097
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001098- Issue #4838: When a module is deallocated, free the memory backing the
1099 optional module state data.
1100
Mark Dickinson8055afd2009-01-17 10:04:45 +00001101- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1102 type to (void *).
1103
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001104- Issue #4935: The overflow checking code in the expandtabs() method common
1105 to str, bytes and bytearray could be optimized away by the compiler, letting
1106 the interpreter segfault instead of raising an error.
1107
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001108- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1109 __next__ method.
1110
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001111- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1112 function no longer attempt to call the __long__ slot to convert an object
1113 to an integer. Only the __int__ and __trunc__ slots are examined.
1114
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001115- Issue #4893: Use NT threading on CE.
1116
Martin v. Löwisec59d042009-01-12 07:59:10 +00001117- Issue #4915: Port sysmodule to Windows CE.
1118
Antoine Pitrouab868312009-01-10 15:40:25 +00001119- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1120 common cases are optimized thanks to a dedicated fast path and a moderate
1121 amount of loop unrolling.
1122
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001123- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1124 collecting the oldest generation) so that allocating lots of objects without
1125 destroying them does not show quadratic performance. Based on a proposal by
1126 Martin von Löwis at
1127 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1128
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001129- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001130 having been closed (for instance, a read() call could return some
1131 previously buffered data). Patch by Dmitry Vasiliev.
1132
Antoine Pitrou05608432009-01-09 18:53:14 +00001133- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1134 flag to work properly. Furthermore, when specifying -u, the text stdout
1135 and stderr streams have line-by-line buffering enabled (the default being
1136 to buffer arbitrary chunks of data).
1137
Raymond Hettinger35631532009-01-09 03:58:09 +00001138- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1139 instead of ints (reducing its size from 4 to 8 times thereby reducing
1140 Python's overall memory).
1141
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001142- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1143 an existing .py counterpart, override the co_filename attributes of all
1144 code objects if the original filename is obsolete (which can happen if the
1145 file has been renamed, moved, or if it is accessed through different paths).
1146 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1147
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001148- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1149 one byte. Also fixes the meaning of len() so that it returns the number of
1150 items, rather than the size in bytes.
1151
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001152- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1153
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001154- Issue #4747: When the terminal does not use utf-8, executing a script with
1155 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1156
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001157- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001158 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001159
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001160- Issue #3680: Reference cycles created through a dict, set or deque iterator
1161 did not get collected.
1162
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001163- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1164 where the tp_hash and tp_dict slots are both NULL.
1165
Georg Brandlccc47b62008-12-28 11:44:14 +00001166- Issue #4759: None is now allowed as the first argument of
1167 bytearray.translate(). It was always allowed for bytes.translate().
1168
Skip Montanaro80072cb2008-12-23 03:51:14 +00001169- Added test case to ensure attempts to read from a file opened for writing
1170 fail.
1171
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001172- Issue #3106: Speedup some comparisons (str/str and int/int).
1173
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001174- Issue #2183: Simplify and optimize bytecode for list, dict and set
1175 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1176
Antoine Pitrou621601a2008-12-17 23:18:19 +00001177- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1178 print elapsed times, not only when some objects are uncollectable /
1179 unreachable. Original patch by Neil Schemenauer.
1180
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001181- Issue #3439: Add a bit_length method to int.
1182
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001183- Issue #2173: When getting device encoding, check that return value of
1184 nl_langinfo is not the empty string. This was causing silent build
1185 failures on OS X.
1186
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001187- Issue #4597: Fixed several opcodes that weren't always propagating
1188 exceptions.
1189
1190- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001191 context manager returns a value that cannot be converted to a bool.
1192
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001193- Issue #4445: Replace "sizeof(PyBytesObject)" with
1194 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1195 bytes instances. On a typical machine this saves 3 bytes of memory
1196 (on average) per allocation of a bytes instance.
1197
Christian Heimesa872de52008-12-05 08:26:55 +00001198- Issue #4533: File read operation was dreadfully slow due to a slowly
1199 growing read buffer. Fixed by using the same growth rate algorithm as
1200 Python 2.x.
1201
Antoine Pitrou5504e892008-12-06 21:27:53 +00001202- Issue #4509: Various issues surrounding resize of bytearray objects to
1203 which there are buffer exports (e.g. memoryview instances).
1204
Georg Brandlf9734072008-12-07 15:30:06 +00001205- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1206 method on file objects with closefd=False. The file descriptor is still
1207 kept open but the file object behaves like a closed file. The ``FileIO``
1208 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001209
Antoine Pitroubc420402008-12-07 20:14:49 +00001210- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1211 larger than 1.
1212
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001213- Issue #4748: Lambda generators no longer return a value.
1214
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001215- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1216
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001217- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1218 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1219 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1220 of using the replace error handler in PyUnicode_DecodeUTF8().
1221
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001222Library
1223-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001224
Tarek Ziadé53fdb182009-10-24 13:42:10 +00001225- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1226 raised. Initial patch by Ezio Melotti.
1227
Tarek Ziadé3cc12f62009-07-22 09:03:01 +00001228- Issue #6545: Removed assert statements in distutils.Extension, so the
1229 behavior is similar when used with -O.
1230
Tarek Ziadé24448fa2009-07-11 11:01:14 +00001231- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
1232 "PyInit" prefix, rather than "init".
1233
Georg Brandld80344f2009-08-13 12:26:19 +00001234- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1235
Tarek Ziadé7e646002009-07-10 09:16:07 +00001236- Issue #6455: Fixed test_build_ext under win32.
1237
Tarek Ziadé35c88a82009-07-04 02:05:51 +00001238- Issue #6413: Fixed the log level in distutils.dist for announce.
1239
Tarek Ziadé385029f2009-07-03 08:37:27 +00001240- Issue #6403: Fixed package path usage in build_ext.
1241
Tarek Ziadé2c3de402009-06-29 16:46:14 +00001242- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1243 extension in a subdirectory if the extension name had dots.
1244
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001245- Issue #6287: Added the license field in Distutils documentation.
1246
Tarek Ziadéff543362009-06-11 09:25:41 +00001247- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1248
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001249- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1250 in Makefiles. This prevents compile errors when using syntax like:
1251 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1252
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001253- Issue #6131: test_modulefinder leaked when run after test_distutils.
1254 Patch by Hirokazu Yamamoto.
1255
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001256- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1257
Vinay Sajipaffbd872009-06-11 10:11:47 +00001258- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001259 and tests on pywin32 by Tim Golden.
1260
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001261- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1262
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001263- Issue #6046: Fixed the library extension when distutils build_ext is used
1264 inplace. Initial patch by Roumen Petrov.
1265
Vinay Sajipaffbd872009-06-11 10:11:47 +00001266- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001267 subcommand.
1268
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001269- Issue #6022: a test file was created in the current working directory by
1270 test_get_outputs in Distutils.
1271
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001272- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1273 inplace option. Initial patch by kxroberto.
1274
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001275- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1276 for old-style extensions.
1277
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001278- Issue #5976: Fixed Distutils test_check_environ.
1279
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001280- Issue #5941: Distutils build_clib command was not working anymore because
1281 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1282 Makefile besides AR and make Distutils use it. Original patch by David
1283 Cournapeau.
1284
R. David Murrayb507d2e2009-04-29 15:34:32 +00001285- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1286
Vinay Sajipaffbd872009-06-11 10:11:47 +00001287- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001288 anymore.
1289
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001290- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001291 sysconfig.get_config_vars.
1292
Tarek Ziadé23336082009-04-25 12:39:56 +00001293- Issue #4951: Fixed failure in test_httpservers.
1294
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001295- Issue #5795: Fixed test_distutils failure on Debian ppc.
1296
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001297- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1298
Georg Brandl1f9fa312009-04-27 16:42:58 +00001299- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1300 a value in SafeConfigParser.
1301
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001302- Issue #5732: added a new command in Distutils: check.
1303
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001304- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001305 platforms. Initial patch by Paul Moore.
1306
Tarek Ziadéf6370502009-04-05 22:57:21 +00001307- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1308 Initial fix by Steven Bethard.
1309
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001310- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1311 Initial fix by Wayne Davison.
1312
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001313- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001314
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001315- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001316
Brett Cannonf47e84c2009-04-01 16:06:01 +00001317- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1318 instead of performing them in functions. Helps prevent import deadlocking in
1319 threads.
1320
R. David Murraye59482e2009-04-01 03:42:00 +00001321- Issue #2522: locale.format now checks its first argument to ensure it has
1322 been passed only one pattern, avoiding mysterious errors where it appeared
1323 that it was failing to do localization.
1324
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001325- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1326 Brandl.
1327
Antoine Pitrou350370c2009-03-14 00:13:13 +00001328- Issue #1222: locale.format() bug when the thousands separator is a space
1329 character.
1330
Tarek Ziadé516db942009-03-11 12:52:00 +00001331- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1332 Tim Golden.
1333
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001334- collections.deque() objects now have a read-only attribute called maxlen.
1335
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001336- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1337 it is has been populated and properly configured in order to prevent
1338 window flashing.
1339
Guilherme Polo56f5be52009-03-07 01:54:57 +00001340- Issue #4792: Prevent a segfault in _tkinter by using the
1341 guaranteed to be safe interp argument given to the PythonCmd in place of
1342 the Tcl interpreter taken from a PythonCmd_ClientData.
1343
1344- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1345
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001346- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1347 Original patch by Akira Kitada.
1348
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001349- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1350
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001351- Issue #5385: Fixed mmap crash after resize failure on windows.
1352
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001353- Issue #5179: Fixed subprocess handle leak on failure on windows.
1354
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001355- PEP 372: Added collections.OrderedDict().
1356
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001357- The _asdict() for method for namedtuples now returns an OrderedDict().
1358
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001359- configparser now defaults to using an ordered dictionary.
1360
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001361- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1362 import guess_extension`` was used.
1363
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001364- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1365 with same tagname but larger size than first map. (Windows)
1366
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001367- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1368 overrun.
1369
Tarek Ziadéf0721222009-02-28 10:16:43 +00001370- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1371 bdist_rpm command.
1372
1373- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1374
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001375- Issue #5052: make Distutils compatible with 2.3 again.
1376
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001377- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1378 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001379
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001380- Issue #5287: Add exception handling around findCaller() call to help out
1381 IronPython.
1382
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001383- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1384 The file was resized to wrong size.
1385
1386- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1387
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001388- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001389 from the package_data and the data_files metadata.
1390
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001391- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001392 support.TempdirManager, to avoid writing in the tests directory.
1393
Tarek Ziadé68c50952009-02-13 23:04:17 +00001394- Issue #4524: distutils build_script command failed with --with-suffix=3.
1395 Initial patch by Amaury Forgeot d'Arc.
1396
Tarek Ziadé811d6242009-02-13 22:26:15 +00001397- Issue #2461: added tests for distutils.util
1398
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001399- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1400 which inherited from numbers.py which did not have __slots__ defined. The
1401 numbers hierarchy now has its own __slots__ declarations.
1402
Antoine Pitroub353c122009-02-11 00:39:14 +00001403- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1404 encoding.
1405
Thomas Heller465c8022009-02-10 18:59:04 +00001406- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1407 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1408
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001409- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1410 under NT and OS2. Patch by Philip Jenvey.
1411
Brett Cannonbefb14f2009-02-10 02:10:16 +00001412- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1413 to be recreated. This avoids a timing hole thanks to the old reliance on the
1414 ctime of the files involved.
1415
Guilherme Polob681df42009-02-09 22:33:59 +00001416- Issue #5122: Synchronize tk load failure check to prevent a potential
1417 deadlock.
1418
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001419- Issue #1818: collections.namedtuple() now supports a keyword argument
1420 'rename' which lets invalid fieldnames be automatically converted to
1421 positional names in the form, _1, _2, ...
1422
Guilherme Poloae098992009-02-09 16:44:24 +00001423- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1424
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001425- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1426 public documented method ``ZipImporter.get_filename()``.
1427
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001428- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1429 the execution of packages by looking for and executing a ``__main__``
1430 submodule when a package name is supplied. Initial patch by Andi
1431 Vajda.
1432
Guilherme Polo491aee22009-02-06 23:16:11 +00001433- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1434 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1435 Tkapp_Call when calling from a thread different than the one that created
1436 the Tcl interpreter. Patch by Robert Hancock.
1437
Eric Smith0e5b5622009-02-06 01:32:42 +00001438- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1439 Ross Light.
1440
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001441- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001442 environment/Makefile. Patch by Douglas Greiman.
1443
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001444- Issue #1276768: The verbose option was not used in the code of
1445 distutils.file_util and distutils.dir_util.
1446
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001447- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001448 --enabled-shared activated. Initial patch by Dave Peterson.
1449
Guilherme Polo7f423952009-02-02 21:17:09 +00001450- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1451
Raymond Hettinger85602262009-02-03 04:19:10 +00001452- The shelve module now defaults to pickle protocol 3.
1453
Brett Cannone61426e2009-01-30 01:31:34 +00001454- Fix a bug in the trace module where a bytes object from co_lnotab had its
1455 items being passed through ord().
1456
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001457- Issue #2047: shutil.move() could believe that its destination path was
1458 inside its source path if it began with the same letters (e.g. "src" vs.
1459 "src.new").
1460
Guilherme Polo5f238482009-01-28 14:41:10 +00001461- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1462
Raymond Hettinger89e12962009-01-26 02:09:03 +00001463- Removed isSequenceType(), isMappingType, and isNumberType() from the
1464 operator module; use the abstract base classes instead. Also removed
1465 the repeat() function; use mul() instead.
1466
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001467- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001468 collections.namedtuple() relied on __name__ being defined.
1469
1470- Backport importlib from Python 3.1. Only the import_module() function has
1471 been backported to help facilitate transitions from 2.7 to 3.1.
1472
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001473- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1474 the tar file was overriden by the gztar one.
1475
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001476- Issue #4863: distutils.mwerkscompiler has been removed.
1477
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001478- Added a new itertools functions: combinations_with_replacement()
1479 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001480
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001481- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001482 allowed non-integer arguments.
1483
Jesse Noller41faa542009-01-25 03:45:53 +00001484- Fix and properly document the multiprocessing module's logging
1485 support, expose the internal levels and provide proper usage
1486 examples.
1487
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001488- Issue #1672332: fix unpickling of subnormal floats, which was
1489 producing a ValueError on some platforms.
1490
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001491- Issue #3881: Help Tcl to load even when started through the
1492 unreadable local symlink to "Program Files" on Vista.
1493
Martin v. Löwis59e47792009-01-24 14:10:07 +00001494- Issue #4710: Extract directories properly in the zipfile module;
1495 allow adding directories to a zipfile.
1496
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001497- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001498 --without-threads argument. When this occurs, _multiprocessing will
1499 be disabled, and not compiled.
1500
Antoine Pitrou08838b62009-01-21 00:55:13 +00001501- Issue #5008: When a file is opened in append mode with the new IO library,
1502 do an explicit seek to the end of file (so that e.g. tell() returns the
1503 file size rather than 0). This is consistent with the behaviour of the
1504 traditional 2.x file object.
1505
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001506- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1507 parameter was set.
1508
Mark Dickinson8dd05142009-01-20 20:43:58 +00001509- Issue #4842: Always append a trailing 'L' when pickling longs using
1510 pickle protocol 0. When reading, the 'L' is optional.
1511
Brett Cannonafccd632009-01-20 02:21:27 +00001512- Add the importlib package.
1513
Jesse Noller9a0fc972009-01-18 21:12:58 +00001514- Issue #4301: Patch the logging module to add processName support, remove
1515 _check_logger_class from multiprocessing.
1516
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001517- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001518 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001519
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001520- Issue #4959: inspect.formatargspec now works for keyword only arguments
1521 without defaults.
1522
Jesse Noller6214edd2009-01-19 16:23:53 +00001523- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1524 for *nix machines for negative handles and large int handles. Without this check
1525 it is possible to segfault the interpreter.
1526
Jesse Nollerb0516a62009-01-18 03:11:38 +00001527- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1528 in sharedctypes.py.
1529
1530- Issue #1225107: inspect.isclass() returned True for instances with a custom
1531 __getattr__.
1532
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001533- Issue #3826 and #4791: The socket module now closes the underlying socket
1534 appropriately when it is being used via socket.makefile() objects
1535 rather than delaying the close by waiting for garbage collection to do it.
1536
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001537- Issue #1696199: Add collections.Counter() for rapid and convenient
1538 counting.
1539
Antoine Pitrou308705e2009-01-10 16:22:51 +00001540- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1541
Thomas Heller5e4e4272009-01-08 09:34:20 +00001542- Issue #4867: Fixed a crash in ctypes when passing a string to a
1543 function without defining argtypes.
1544
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001545- Issue #4272: Add an optional argument to the GzipFile constructor to override
1546 the timestamp in the gzip stream. The default value remains the current time.
1547 The information can be used by e.g. gunzip when decompressing. Patch by
1548 Jacques Frechet.
1549
Mark Dickinson315a20a2009-01-04 21:34:18 +00001550- Restore Python 2.3 compatibility for decimal.py.
1551
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001552- Issue #3638: Remove functions from _tkinter module level that depend on
1553 TkappObject to work with multiple threads.
1554
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001555- Issue #4718: Adapt the wsgiref package so that it actually works with
1556 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001557 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1558
Raymond Hettinger771ed762009-01-03 19:20:32 +00001559- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1560 to the decimal module.
1561
Georg Brandl3a9b0622009-01-03 22:07:57 +00001562- Fractions.from_float() no longer loses precision for integers too big to
1563 cast as floats.
1564
Mark Dickinsonf9236412009-01-02 23:23:21 +00001565- Issue #4812: add missing underscore prefix to some internal-use-only
1566 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1567
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001568- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001569 did unnecessary work in the common case where no key function was specified.
1570
Georg Brandlb1441c72009-01-03 22:33:39 +00001571- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1572 the function is not a generator.
1573
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001574- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1575 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001576
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001577- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001578 function. Original patch by Thomas Heller.
1579
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001580- Issue #3767: Convert Tk object to string in tkColorChooser.
1581
Martin v. Löwise354d782008-12-29 16:03:04 +00001582- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1583
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001584- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1585 the code under test can be written inline if more practical.
1586
Georg Brandldb7b6b92009-01-01 15:53:14 +00001587- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1588 works as expected in the interactive environment.
1589
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001590- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1591 Gabriel Genellina.
1592
Antoine Pitrou180a3362008-12-14 16:36:46 +00001593- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1594 boundary.
1595
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001596- Issue #4223: inspect.getsource() will now correctly display source code
1597 for packages loaded via zipimport (or any other conformant PEP 302
1598 loader). Original patch by Alexander Belopolsky.
1599
1600- Issue #4201: pdb can now access and display source code loaded via
1601 zipimport (or any other conformant PEP 302 loader). Original patch by
1602 Alexander Belopolsky.
1603
1604- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1605 302 conformant loader) will now work correctly in most cases (they
1606 are still subject to the constraints that exist for all code running
1607 from inside a module loaded via a PEP 302 loader and attempting to
1608 perform IO operations based on __file__). Original patch by
1609 Alexander Belopolsky.
1610
1611- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1612 allows backporting to maintenance branches. Original patch by
1613 Alexander Belopolsky.
1614
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001615- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1616 a non-ASCII letter.
1617
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001618- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1619
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001620- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1621 codec cannot be found. This is for compatibility with the builtin behavior.
1622
Facundo Batista708d5812008-12-11 04:20:07 +00001623- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1624 give correct results in the case where one argument is a quiet NaN
1625 and the other is a finite number that requires rounding.
1626
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001627- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1628 libs.
1629
Georg Brandlf9734072008-12-07 15:30:06 +00001630- Added the subprocess.check_call_output() convenience function to get output
1631 from a subprocess on success or raise an exception on error.
1632
1633- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1634 support unusual filenames (such as those containing semi-colons) in
1635 Content-Disposition headers.
1636
1637- Issue #4384: Added logging integration with warnings module using
1638 captureWarnings(). This change includes a NullHandler which does nothing;
1639 it will be of use to library developers who want to avoid the "No handlers
1640 could be found for logger XXX" message which can appear if the library user
1641 doesn't configure logging.
1642
1643- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1644 exception.
1645
Georg Brandleee31162008-12-07 15:15:22 +00001646- Issue #4529: fix the parser module's validation of try-except-finally
1647 statements.
1648
1649- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1650 not a malformed option.
1651
1652- Added the subprocess.check_output() convenience function to get output
1653 from a subprocess on success or raise an exception on error.
1654
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001655- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1656 the corresponding tests now pass.
1657
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001658- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1659 it was calling the wrong open() function.
1660
Fred Drake9a0a65b2008-12-04 19:24:50 +00001661- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1662 support unusual filenames (such as those containing semi-colons) in
1663 Content-Disposition headers.
1664
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001665- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1666 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1667
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001668- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1669 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1670 and getservbyport().
1671
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001672- Windows locale mapping updated to Vista.
1673
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001674Tools/Demos
1675-----------
1676
Antoine Pitrou8a681222009-02-07 17:13:31 +00001677- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1678 and make it 2.6-compatible.
1679
Guilherme Poloa7d27972009-01-28 16:06:51 +00001680- Ttk demos added in Demo/tkinter/ttk/
1681
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001682- Issue #4677: add two list comprehension tests to pybench.
1683
Georg Brandlb1441c72009-01-03 22:33:39 +00001684
1685Build
1686-----
1687
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001688- Issue #6094: Build correctly with Subversion 1.7.
1689
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001690- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1691
Antoine Pitrou8966c992009-05-01 21:18:27 +00001692- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1693 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1694
Matthias Klose55708cc2009-04-30 08:06:49 +00001695- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001696 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001697
Matthias Klose906785c2009-02-22 23:18:38 +00001698- Link the shared python library with $(MODLIBS).
1699
Martin v. Löwis11f72102009-02-10 13:13:30 +00001700- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1701
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001702- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1703
Martin v. Löwise97637d2009-01-11 09:45:11 +00001704- Issue #4895: Use _strdup on Windows CE.
1705
Georg Brandlb1441c72009-01-03 22:33:39 +00001706- Issue #4472: "configure --enable-shared" now works on OSX
1707
1708- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1709
1710- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1711
1712- Issue #4289: Remove Cancel button from AdvancedDlg.
1713
1714- Issue #1656675: Register a drop handler for .py* files on Windows.
1715
1716- Issue #4120: Exclude manifest from extension modules in VS2008.
1717
1718- Issue #4091: Install pythonxy.dll in system32 again.
1719
1720- Issue #4018: Disable "for me" installations on Vista.
1721
1722- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1723
1724- Issue #4204: Fixed module build errors on FreeBSD 4.
1725
1726
1727C-API
1728-----
1729
Mark Dickinson21776072009-02-10 16:13:25 +00001730- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1731 for negative arguments. Previously, it raised TypeError.
1732
Georg Brandlb1441c72009-01-03 22:33:39 +00001733- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1734
1735- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1736 the GIL is released, or owned by another thread.
1737
1738- Issue #4122: On Windows, fix a compilation error when using the
1739 Py_UNICODE_ISSPACE macro in an extension module.
1740
1741
Mark Dickinsone675f082008-12-11 21:56:00 +00001742Extension Modules
1743-----------------
1744
Gregory P. Smith365a1862009-02-12 07:35:29 +00001745- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1746 supporting objects as input no matter how it was compiled (built in
1747 implementations or external openssl library).
1748
Mark Dickinson29500f62009-01-15 15:36:10 +00001749- Issue #4397: Fix occasional test_socket failure on OS X.
1750
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001751- Issue #4279: Fix build of parsermodule under Cygwin.
1752
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001753- Issue #4751: hashlib now releases the GIL when hashing large buffers
1754 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1755 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1756
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001757- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1758
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001759- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1760 or decompress several streams at once on multi-CPU systems. Also, the GIL
1761 is now released when computing the CRC of a large buffer. Patch by ebfe.
1762
Georg Brandlb1441c72009-01-03 22:33:39 +00001763- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1764
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001765- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1766
Mark Dickinsone675f082008-12-11 21:56:00 +00001767- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1768 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001769
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001770- Issue #4583: array.array would not always prohibit resizing when a buffer
1771 has been exported, resulting in an interpreter crash when accessing the
1772 buffer.
1773
Martin v. Löwis841edad2008-11-30 10:36:49 +00001774
Jack Diederiche0cbd692009-04-01 04:27:09 +00001775- Issue #5228: Make functools.partial objects can now be pickled.
1776
Guilherme Polo9de29af2009-01-28 20:40:48 +00001777Tests
1778-----
1779
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001780- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1781 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1782 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1783 skip the tests if DISPLAY is defined but can't be used.
1784
R. David Murraya21e4ca2009-03-31 23:16:50 +00001785- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001786 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001787 from test support, which does the conversion.
1788
Guilherme Polo9de29af2009-01-28 20:40:48 +00001789- Issue #5083: New 'gui' resource for regrtest.
1790
1791
Brett Cannon7317c1e2008-11-25 19:19:17 +00001792Docs
1793----
1794
Georg Brandl52b92cc2008-05-25 09:43:03 +00001795
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001796**(For information about older versions, consult the HISTORY file.)**