blob: 36c232e3e2a6e939dcc3d97e163030f74c09938a [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
Mark Dickinson46672512010-01-12 23:09:26 +000015- Issue #7632: Fix a crash in dtoa.c that occurred in debug builds
16 when parsing certain long numeric strings corresponding to subnormal
17 values. Also fix a number of bugs in dtoa.c that could lead to
18 incorrectly rounded results when converting strings to floats.
19
Benjamin Peterson533849a2009-12-30 19:47:05 +000020- Issue #7604: Deleting an unset slotted attribute did not raise an
21 AttributeError.
22
Antoine Pitrou2795e6c2009-12-12 19:26:06 +000023- Issue #7466: segmentation fault when the garbage collector is called
24 in the middle of populating a tuple. Patch by Florent Xicluna.
25
Amaury Forgeot d'Arcea315ac2009-12-01 22:03:44 +000026- Issue #7419: setlocale() could crash the interpreter on Windows when called
27 with invalid values.
28
Amaury Forgeot d'Arc36dfe782009-11-30 00:16:44 +000029- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
30 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
31
Ronald Oussoren1b2cad02009-11-19 17:30:05 +000032- Issue #7085: Fix crash when importing some extensions in a thread
33 on MacOSX 10.6.
34
Mark Dickinsonb6447512009-11-15 10:17:48 +000035- Issue #7298: fixes for range and reversed(range(...)). Iteration
36 over range(a, b, c) incorrectly gave an empty iterator when a, b and
37 c fit in C long but the length of the range did not. Also fix
38 several cases where reversed(range(a, b, c)) gave wrong results, and
39 fix a refleak for reversed(range(a, b, c)) with large arguments.
40
Raymond Hettingera9311a32009-11-01 21:02:38 +000041- Issue #7244: itertools.izip_longest() no longer ignores exceptions
42 raised during the formation of an output tuple.
43
Benjamin Peterson7dc5ac52009-10-29 01:22:38 +000044- Issue #3297: On wide unicode builds, do not split unicode characters into
45 surrogates.
46
Antoine Pitroucefb3162009-10-20 22:08:36 +000047- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
48 fixes the problem of some exceptions being thrown at shutdown when the
49 interpreter is killed. Patch by Adam Olsen.
50
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000051- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitroueda95e92009-10-19 19:47:59 +000052 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000053
Mark Dickinson2bbeb0e2009-09-29 19:24:38 +000054- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
55 of producing internally inconsistent Python longs.
56
Philip Jenvey962b05c2009-09-29 05:03:48 +000057- Issue #6990: Fix threading.local subclasses leaving old state around
58 after a reference cycle GC which could be recycled by new locals.
59
Mark Dickinson424d75a2009-09-06 10:20:23 +000060- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
61
Amaury Forgeot d'Arcaf0312a2009-08-29 23:19:16 +000062- Issue #6750: A text file opened with io.open() could duplicate its output
63 when writing from multiple threads at the same time.
64
Matthias Klosed4337802009-09-13 15:29:48 +000065Library
66-------
67
Antoine Pitrou0560e8a2010-01-14 17:37:24 +000068- Issue #3299: Fix possible crash in the _sre module when given bad
69 argument values in debug mode. Patch by Victor Stinner.
70
Benjamin Peterson109d3ab2010-01-13 03:53:14 +000071- Issue #7681: Use floor division in appropiate places in the wave module.
72
Tarek Ziadé343e2ff2010-01-11 23:23:44 +000073- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
74 Extension extra options may change the output without changing the .c
75 file). Initial patch by Collin Winter.
76
Tarek Ziadé5e9615f2010-01-09 00:03:39 +000077- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
78 gcc when it has a fully qualified configuration prefix. Initial patch
79 by Arfrever.
80
Antoine Pitrou1a2d3562010-01-08 17:56:16 +000081- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
82 the destruction of weakref'ed objects while iterating.
83
Antoine Pitrou901d81e2010-01-07 18:02:53 +000084- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
85 Victor Stinner.
86
R. David Murray93a59652010-01-06 20:12:07 +000087- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
88 opening an empty or very small file.
89
Tarek Ziadéb7e82bb2009-12-21 23:18:02 +000090- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
91 MSVC XML Manifest file in text mode so string patterns can be used
92 in regular expressions.
93
Tarek Ziadé63d14c02009-12-21 00:08:17 +000094- Issue #7552: Removed line feed in the base64 Authorization header in
95 the Distutils upload command to avoid an error when PyPI reads it.
96 This occurs on long passwords. Initial patch by JP St. Pierre.
97
Senthil Kumaran4b9fbeb2009-12-20 07:18:22 +000098- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
99 Tatsuhiro Tsujikawa.
100
Antoine Pitrouc8428d32009-12-14 18:23:30 +0000101- Issue #4757: `zlib.compress` and other methods in the zlib module now
102 raise a TypeError when given an `str` object (rather than a `bytes`-like
103 object). Patch by Victor Stinner and Florent Xicluna.
104
Benjamin Peterson6b59f772009-12-13 19:30:15 +0000105- Issue #7349: Make methods of file objects in the io module accept None as an
106 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
107 the same as passing no argument.
108
R. David Murraya6cdd832009-12-12 18:38:24 +0000109- Issue #5949: added check for correct lineends in input from IMAP server
110 in imaplib.
111
Raymond Hettinger64eaa202009-12-10 05:36:11 +0000112- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
113
Antoine Pitrou4fad6bd2009-12-08 16:00:03 +0000114- Issue #6986: Fix crash in the JSON C accelerator when called with the
115 wrong parameter types. Patch by Victor Stinner.
116
Tarek Ziadéd26d5382009-12-06 09:30:47 +0000117- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
118 generated in Distutils. Patch by Stephen Emslie.
119
Martin v. Löwis8ab31012009-12-03 21:14:10 +0000120- Issue #4120: Drop reference to CRT from manifest when building extensions with
121 msvc9compiler.
122
Raymond Hettinger6c8ee7a2009-11-30 21:55:17 +0000123- Issue #7410: deepcopy of itertools.count was resetting the count.
124
Antoine Pitroubcc63a82009-11-28 16:16:09 +0000125- Issue #4486: When an exception has an explicit cause, do not print its
126 implicit context too. This affects the `traceback` module as well as
127 built-in exception printing.
128
Senthil Kumarand884f8a2009-11-23 19:06:11 +0000129- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
130
Tarek Ziadéfd9ac222009-11-19 05:41:34 +0000131- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
132 be 2.
133
Raymond Hettingerb868e632009-11-19 01:02:56 +0000134- Issue #3976: pprint for sets, frozensets, and dicts now succeed when
135 they contain unorderable types.
136
Benjamin Peterson3a2249d2009-11-19 21:26:17 +0000137- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
138 of __str__.
Benjamin Petersona1f9c042009-11-19 03:10:36 +0000139
Lars Gustäbel7dfcef52009-11-18 21:11:27 +0000140- Issue #7341: Close the internal file object in the TarFile constructor in
141 case of an error.
142
Tarek Ziadé2cc70482009-11-18 10:19:38 +0000143- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
144 Windows box. Help provided by David Bolen.
145
Nick Coghlanb830a232009-11-15 23:27:31 +0000146- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
147
Antoine Pitrou4def5152009-11-13 22:39:40 +0000148- Issue #7318: multiprocessing now uses a timeout when it fails to establish
149 a connection with another process, rather than looping endlessly. The
150 default timeout is 20 seconds, which should be amply sufficient for
151 local connections.
152
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000153- Issue #7282: Fix a memory leak when an RLock was used in a thread other
154 than those started through `threading.Thread` (for example, using
155 `_thread.start_new_thread()`).
156
Brett Cannon3d26b952009-11-07 23:57:20 +0000157- Issue #7187: Importlib would not silence the IOError raised when trying to
158 write new bytecode when it was made read-only.
159
Antoine Pitroua9546072009-11-05 13:51:19 +0000160- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
161 which are part of a reference cycle.
162
Antoine Pitrou868b5782009-11-02 11:40:19 +0000163- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
164 a modification is done through it. This fixes inconsistencies and test
165 failures on systems with slightly bogus mtime behaviour.
166
Gregory P. Smith6c4a7252009-11-01 20:36:24 +0000167- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
168
Gregory P. Smithfc1c75d2009-11-01 18:48:31 +0000169- Issue #7246 & Issue #7208: getpass now properly flushes input before
170 reading from stdin so that existing input does not confuse it and
171 lead to incorrect entry or an IOError. It also properly flushes it
172 afterwards to avoid the terminal echoing the input afterwards on
173 OSes such as Solaris.
174
Mark Dickinson9050bb22009-10-29 12:25:07 +0000175- Issue #7233: Fix a number of two-argument Decimal methods to make
176 sure that they accept an int or long as the second argument. Also
177 fix buggy handling of large arguments (those with coefficient longer
178 than the current precision) in shift and rotate.
179
Antoine Pitroua3af0eb2009-10-27 17:49:21 +0000180- Issue #7205: Fix a possible deadlock when using a BZ2File object from
181 several threads at once.
182
Tarek Ziadéc76bcea2009-10-25 23:16:51 +0000183- Issue #7071: byte-compilation in Distutils is now done with respect to
184 sys.dont_write_bytecode.
185
Mark Dickinson2d4fce22009-10-20 13:40:25 +0000186- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
187 larger than emax.
188
Antoine Pitroueda95e92009-10-19 19:47:59 +0000189- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
190 platforms, and assorted locale fixes by Derk Drukker.
191
Antoine Pitroue566bda2009-10-19 18:24:35 +0000192- Issue #5833: Fix extra space character in readline completion with the
193 GNU readline library version 6.0.
194
Senthil Kumaran11301632009-10-11 06:07:46 +0000195- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
196
R. David Murray290e9392009-10-10 00:57:04 +0000197- Issue #7082: When falling back to the MIME 'name' parameter, the
198 correct place to look for it is the Content-Type header.
199
Benjamin Peterson0c7f9c92009-10-09 21:53:27 +0000200- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
201 builtin tokenizer.
202
Mark Dickinsonb0907612009-10-07 19:24:43 +0000203- Issue #7048: Force Decimal.logb to round its result when that result
204 is too large to fit in the current precision.
205
Antoine Pitrou384c9202009-09-21 21:42:29 +0000206- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitroueda95e92009-10-19 19:47:59 +0000207 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrou384c9202009-09-21 21:42:29 +0000208
Tarek Ziadé0cdc3692009-09-21 13:59:07 +0000209- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
210
Thomas Heller49ac2ac2009-09-18 20:09:57 +0000211- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
212 does now always result in NULL.
213
Thomas Heller35888e22009-09-18 19:46:56 +0000214- Issue #5042: Structure sub-subclass does now initialize correctly
215 with base class positional arguments.
216
Eric Smith53cda532009-09-18 13:59:58 +0000217- Issue #6882: Import uuid creates zombies processes.
218
Matthias Kloseb1117432009-09-13 15:31:14 +0000219- Issue #6635: Fix profiler printing usage message.
220
Matthias Klosed4337802009-09-13 15:29:48 +0000221- Issue #6888: pdb's alias command was broken when no arguments were given.
222
223- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
224 returning NaN or raising InvalidContext. Also, fix infinite recursion
225 in long(Decimal('nan')).
226
227- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
228 with no type specifier.
229
230- Issue #6239: ctypes.c_char_p return value must return bytes.
231
232- Issue #6838: Use a list to accumulate the value instead of
233 repeatedly concatenating strings in http.client's
234 HTTPResponse._read_chunked providing a significant speed increase
235 when downloading large files servend with a Transfer-Encoding of 'chunked'.
236
237- Have importlib raise ImportError if None is found in sys.modules for a
238 module.
239
240- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
241 payloads are now ordered by integer value rather than lexicographically.
242
243- Issue #6163: Fixed HP-UX runtime library dir options in
244 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
245 Michael Haubenwallner.
246
247Extension Modules
248-----------------
249
Mark Dickinson015fa032009-10-08 16:02:50 +0000250- Issue #7078: Set struct.__doc__ from _struct.__doc__.
251
Matthias Klosed4337802009-09-13 15:29:48 +0000252- Issue #6848: Fix curses module build failure on OS X 10.6.
253
Mark Dickinson95078872009-10-04 18:47:48 +0000254Tests
255-----
256
R. David Murray14520952009-12-20 17:37:25 +0000257- Issue #7376: instead of running a self-test (which was failing) when called
258 with no arguments, doctest.py now gives a usage message.
259
R. David Murrayc009b442009-12-14 22:57:04 +0000260- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
261 instead of a hardcoded port number in test_rapid_restart.
262
R. David Murray8054a5d2009-12-04 00:13:33 +0000263- Issue #7431: use TESTFN in test_linecache instead of trying to create a
264 file in the Lib/test directory, which might be read-only for the
265 user running the tests.
266
R. David Murray9f9b46c2009-11-15 00:35:37 +0000267- Issue #7324: add a sanity check to regrtest argument parsing to
268 catch the case of an option with no handler.
269
Antoine Pitrouca154092009-11-13 16:31:51 +0000270- Issue #6551: test_zipimport could import and then destroy some modules of
271 the encodings package, which would make other tests fail further down
272 the road because the internally cached encoders and decoders would point
273 to empty global variables.
274
Antoine Pitroub78ba6b2009-11-11 21:01:33 +0000275- Issue #7295: Do not use a hardcoded file name in test_tarfile.
276
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000277- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
278 primitives such as Lock, RLock, Condition, Event and Semaphore.
279
Brett Cannon142d2362009-11-05 01:34:30 +0000280- Issue #7248 (part 2): Use a unique temporary directory for importlib source
281 tests instead of tempfile.tempdir. This prevents the tests from sharing state
282 between concurrent executions on the same system.
283
284- Issue #7248: In importlib.test.source.util a try/finally block did not make
285 sure that some referenced objects actually were created in the block before
286 calling methods on the object.
287
Antoine Pitrou56e00ca2009-10-27 13:08:37 +0000288- Issue #7055: test___all__ now greedily detects all modules which have an
289 __all__ attribute, rather than using a hardcoded and incomplete list.
290
R. David Murray6bf5a2e82009-10-07 23:54:53 +0000291- Issue #7058: Added save/restore for argv and os.environ to runtest_inner
292 in regrtest, with warnings if the called test modifies them.
293
Mark Dickinson95078872009-10-04 18:47:48 +0000294- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
295
Benjamin Petersonbb81c8c2010-01-09 21:54:39 +0000296C-API
297-----
298
299- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
300 has '\0' at the end.
301
Matthias Klosed4337802009-09-13 15:29:48 +0000302Build
303-----
304
Martin v. Löwis5330aa52009-12-22 10:48:47 +0000305- Switch to OpenSSL 0.9.8l on Windows.
306
Mark Dickinsonee2dd4a2009-10-31 10:20:38 +0000307- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
308 compiles correctly under gcc on x86-64. This fixes a reported
309 problem with the --with-tsc build on x86-64.
310
Matthias Klosed4337802009-09-13 15:29:48 +0000311- Issue #6802: Fix build issues on MacOSX 10.6
312
313- Issue #6801 : symmetric_difference_update also accepts |.
314 Thanks to Carl Chenet.
315
Ronald Oussoren8c067812009-12-24 14:24:05 +0000316- Issue #7541: when using ``python-config`` with a framework install the compiler might
317 use the wrong library.
318
Matthias Klosed4337802009-09-13 15:29:48 +0000319Documentation
320-------------
321
322- Issue #6556: Fixed the Distutils configuration files location explanation
323 for Windows.
324
325
326What's New in Python 3.1.1?
327===========================
328
329*Release date: 2009-08-13*
330
331Core and Builtins
332-----------------
333
Benjamin Peterson044446b2009-08-15 13:25:28 +0000334- Issue #6707: dir() on an uninitialized module caused a crash.
335
Georg Brandl069bcc32009-07-22 12:06:11 +0000336- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
337
Raymond Hettinger63853bb2009-07-27 20:29:18 +0000338- Issue #6573: set.union() stopped processing inputs if an instance of self
339 occurred in the argument chain.
340
R. David Murray10fc3952009-07-19 02:25:02 +0000341- Issue #6070: On posix platforms import no longer copies the execute bit
342 from the .py file to the .pyc file if it is set.
343
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +0000344- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
345 object, and not an int. Fix the corresponding error message, and the
346 documentation.
347
Mark Dickinson8c1e2942009-06-30 15:46:37 +0000348- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
349 This fixes a build failure on HP-UX: int32_t and uint32_t are
350 defined in inttypes.h instead of stdint.h on that platform.
351
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +0000352- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +0000353 the 'surrogateescape' error handler, a string which contains unpaired
354 surrogates.
355
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000356C-API
357-----
358
Mark Dickinsond0ed0db2009-12-03 11:01:53 +0000359- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
360 in PyArg_ParseTupleAndKeywords.
361
Georg Brandl878c3b02009-08-13 08:36:43 +0000362- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
363 NUL: Bogus TypeError detail string.
364
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000365- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +0000366
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000367- The code flags for old __future__ features are now available again.
368
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000369Library
370-------
371
Georg Brandle6700e92009-08-13 08:39:33 +0000372- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
373 DO/DONT correctly.
374
Georg Brandl8a038b22009-08-13 07:52:08 +0000375- Issue #6126: Fixed pdb command-line usage.
376
Antoine Pitrou0473e562009-08-06 20:52:43 +0000377- Issue #6629: Fix a data corruption issue in the new I/O library, which could
378 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
379 "wb+" mode) after having buffered a certain amount of data for reading. This
380 bug was not present in the pure Python implementation.
381
Mark Dickinson825b9932009-08-06 16:08:07 +0000382- Issue #6622: Fix "local variable 'secret' referenced before
383 assignment" bug in POP3.apop.
384
Raymond Hettinger99a13ee2009-08-04 19:13:37 +0000385- Issue #6637: defaultdict.copy() did not work when the default factory
386 was left unspecified. Also, the eval/repr round-trip would fail when
387 the default_factory was None.
388
Mark Dickinson34776ca2009-08-02 20:09:59 +0000389- Issue #2715: Remove remnants of Carbon.File from binhex module.
390
Mark Dickinson8d238292009-08-02 10:16:33 +0000391- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +0000392decimal digits in input, as recommended by the standard. Previously
393it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +0000394
R. David Murraya44c6b32009-07-29 15:40:30 +0000395- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +0000396unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
397descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +0000398
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000399- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +0000400working through proxy. Original patch by Christopher Li, changes made by
401Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000402
Brett Cannon2e3155e2009-07-20 03:22:43 +0000403- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +0000404the documentation said it did even though the code in PyLoader relied on the
405abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +0000406
Mark Dickinson8d156432009-07-18 14:43:10 +0000407- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +0000408know how to handle a comparison without loss of precision. Also add
409correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +0000410
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000411- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +0000412
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000413- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +0000414reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000415
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000416- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +0000417syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000418
Georg Brandlae83d6e2009-08-13 09:04:31 +0000419- Issue #3392: The subprocess communicate() method no longer fails in select()
420 when file descriptors are large; communicate() now uses poll() when possible.
421
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000422- Issue #6369: Fix an RLE decompression bug in the binhex module.
423
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000424- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
425
Georg Brandlae83d6e2009-08-13 09:04:31 +0000426- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
427 sys.path.
428
429Extension Modules
430-----------------
431
Brett Cannon0c811072009-08-13 19:59:04 +0000432- Fix a segfault in expat.
433
Georg Brandlae83d6e2009-08-13 09:04:31 +0000434- Issue #4509: array.array objects are no longer modified after an operation
435 failing due to the resize restriction in-place when the object has exported
436 buffers.
437
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000438Build
439-----
440
Benjamin Petersona09e8702010-01-01 16:29:51 +0000441- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
442
Benjamin Petersonf9a6dab2009-12-30 03:06:54 +0000443- Issue #7589: Only build the nis module when the correct header files are
444 found.
445
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000446- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000447directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000448
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000449- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000450extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000451
Brett Cannon10e35b32009-07-20 00:19:49 +0000452Test
453----
454
455- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000456testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000457
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000458
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000459What's New in Python 3.1?
460=========================
461
462*Release date: 27-June-2009*
463
464Core and Builtins
465-----------------
466
Mark Dickinsonad195562009-06-24 19:01:32 +0000467- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000468large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000469
Raymond Hettinger159eac92009-06-23 20:38:54 +0000470- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000471because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000472
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000473Library
474-------
475
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000476- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000477argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000478
Facundo Batista10706e22009-06-19 20:34:30 +0000479- Issue #6274: Fixed possible file descriptors leak in subprocess.py
480
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000481- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000482io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000483
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000484- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000485(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000486
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000487- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000488store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000489
Matthias Kloseab2b7552009-06-22 13:05:52 +0000490Extension Modules
491-----------------
492
493- Issue #5590: Remove unused global variable in pyexpat extension.
494
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000495
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000496What's New in Python 3.1 Release Candidate 2?
497=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000498
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000499*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000500
501Core and Builtins
502-----------------
503
Raymond Hettinger94f55832009-06-12 18:40:16 +0000504- Fixed SystemError triggered by "range([], 1, -1)".
505
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000506- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000507(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000508
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000509- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000510possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000511
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000512- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000513 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000514
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000515Library
516-------
517
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000518- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000519expression string pattern was trying to match against a bytes returned by
520Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000521
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000522- Issue #6258: Support AMD64 in bdist_msi.
523
R. David Murray58641de2009-06-12 15:33:19 +0000524- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000525binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000526
Vinay Sajipaffbd872009-06-11 10:11:47 +0000527- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000528TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000529
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000530- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000531errors property. Additionally, the errors and encoding properties of StringIO
532are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000533
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000534- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000535or dumping pickles with a 2.x-compatible protocol, in order to make data
536sharing and migration easier. This behaviour can be disabled using the
537new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000538
Raymond Hettinger40925d22009-06-04 18:32:39 +0000539- Removed the ipaddr module.
540
Georg Brandlb54d8012009-06-04 09:11:51 +0000541- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000542base64.{encode,decode}bytes which reflects what type they accept and return.
543The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000544
Georg Brandl317185a2009-06-04 09:00:56 +0000545- Issue #5767: Remove sgmlop support from xmlrpc.client.
546
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000547- Issue #6150: Fix test_unicode on wide-unicode builds.
548
Antoine Pitrouc06de472009-05-30 21:04:26 +0000549- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000550parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000551
Martin v. Löwis79b13872009-06-01 04:13:14 +0000552Windows
553-------
554
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000555- Issue #6221: Delete test registry key before running the test.
556
Martin v. Löwis79b13872009-06-01 04:13:14 +0000557- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
558
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000559C-API
560-----
561
562- Issue #5735: Python compiled with --with-pydebug should throw an
563 ImportError when trying to import modules compiled without
564 --with-pydebug, and vice-versa.
565
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000566
Brett Cannonc6d936e2009-06-07 20:09:53 +0000567Build
568-----
569
570- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
571 added LIBS to OS X framework builds.
572
Ronald Oussoren99aab652009-06-08 21:22:57 +0000573- Issue #5809: Specifying both --enable-framework and --enable-shared is
574 an error. Configure now explicity tells you about this.
575
576
Brett Cannonc6d936e2009-06-07 20:09:53 +0000577
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000578What's New in Python 3.1 release candidate 1?
579=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000580
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000581*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000582
583Core and Builtins
584-----------------
585
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000586- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
587 of the command line.
588
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000589- Issue #6012: Add cleanup support to O& argument parsing.
590
Eric Smith41669ca2009-05-23 14:23:22 +0000591- Issue #6089: Fixed str.format with certain invalid field specifiers
592 that would raise SystemError.
593
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000594- Issue #5982: staticmethod and classmethod now expose the wrapped
595 function with __func__.
596
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000597- Added support for multiple context managers in the same with-statement.
598 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000599
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000600- Issue #5829: complex("1e500") no longer raises OverflowError. This
601 makes it consistent with float("1e500") and interpretation of real
602 and imaginary literals.
603
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000604- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
605
R. David Murraydd226ea2009-05-13 12:27:21 +0000606- Issue #5994: the marshal module now has docstrings.
607
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000608- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
609 (1) inf and nan strings with trailing whitespace were incorrectly
610 rejected; (2) parsing of strings representing infinities and nans
611 was locale aware; and (3) the interpretation of fromhex('-nan')
612 didn't match that of float('-nan').
613
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000614Library
615-------
616
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000617- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
618
R. David Murrayfb123912009-05-28 18:19:00 +0000619- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
620
R. David Murray1f1b9d32009-05-27 20:56:59 +0000621- Issue #6121: pydoc now ignores leading and trailing spaces in the
622 argument to the 'help' function.
623
Georg Brandlfaf41492009-05-26 18:31:11 +0000624- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
625 arguments for strings with a space in them.
626
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000627- collections.namedtuple() was not working with the following field
628 names: cls, self, tuple, itemgetter, and property.
629
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000630- In unittest, using a skipping decorator on a class is now equivalent to
631 skipping every test on the class. The ClassTestSuite class has been removed.
632
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000633- Issue #6050: Don't fail extracting a directory from a zipfile if
634 the directory already exists.
635
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000636- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
637 than an int, which makes some operations possible under 64-bit Linux (e.g.
638 DN_MULTISHOT with F_NOTIFY).
639
Antoine Pitrou716c4442009-05-23 19:04:03 +0000640- Issue #5761: Add the name of the underlying file to the repr() of various
641 IO objects.
642
R. David Murraycaa27b72009-05-23 18:49:56 +0000643- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
644 by Musashi Tamura, tests by Marcin Bachry.
645
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000646- Issue #1983: Fix functions taking or returning a process identifier to use
647 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
648 a process identifier type wider than the standard C integer type.
649
R. David Murray87e20742009-05-23 01:30:26 +0000650- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
651 Patch by Farhan Ahmad, test by Marcin Bachry.
652
Antoine Pitrou6e610062009-05-15 17:04:50 +0000653- Issue #2116: Weak references and weak dictionaries now support copy()ing and
654 deepcopy()ing.
655
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000656- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
657
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000658- Issue #5918: Fix a crash in the parser module.
659
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000660- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
661
Antoine Pitroue4501852009-05-14 18:55:55 +0000662- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
663 library. This means, for example, that opening an UTF-16 text file in
664 append mode doesn't add a BOM at the end of the file if the file isn't
665 empty.
666
R. David Murray74b89242009-05-13 17:33:03 +0000667- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
668 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
669 corrects a pydoc regression.
670
R. David Murray99352742009-05-07 18:24:38 +0000671- Issue 5955: aifc's close method did not close the file it wrapped,
672 now it does. This also means getfp method now returns the real fp.
673
Benjamin Peterson932073a2009-05-23 16:14:33 +0000674Installation
675------------
676
677- Issue #6047: fullinstall has been removed because Python 3's executable will
678 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000679
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000680- Lib/smtpd.py is no longer installed as a script.
681
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000682Extension Modules
683-----------------
684
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000685- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000686
Martin v. Löwise23c8682009-05-29 16:01:34 +0000687- Issue #4873: Fix resource leaks in error cases of pwd and grp.
688
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000689- Issue #6093: Fix off-by-one error in locale.strxfrm.
690
Benjamin Peterson744af442009-05-23 18:51:49 +0000691- The _functools and _locale modules are now built into the libpython shared
692 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000693
Antoine Pitrou20327222009-05-24 20:39:11 +0000694Build
695-----
696
697- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
698 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
699 Clinton Roy.
700
Brett Cannon1262e7c2009-05-11 01:47:11 +0000701Tests
702-----
703
704- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
705 tests on darwin even when the OS was installed on a case-sensitive
706 filesystem. Also fixed tests that should not be run when
707 sys.dont_write_bytecode is true.
708
709
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000710What's New in Python 3.1 beta 1?
711================================
712
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000713*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000714
715Core and Builtins
716-----------------
717
Mark Dickinson865e01a2009-05-07 16:37:01 +0000718- Issue #5914: Add new C API function PyOS_string_to_double, and
719 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
720
Eric Smith741191f2009-05-06 13:08:15 +0000721- Issue #3382: float.__format__, complex.__format__, and %-formatting
722 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
723 affects nan -> NAN and inf -> INF.
724
Mark Hammond5a607a32009-05-06 08:04:54 +0000725- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
726 in all operations, including splitdrive, split, etc. splitunc() now issues
727 a PendingDeprecation warning.
728
Eric Smith63376222009-05-05 14:04:18 +0000729- Issue #5920: For float.__format__, change the behavior with the
730 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
731 to be like 'g' but with at least one decimal point and with a
732 default precision of 12. Previously, the behavior the same but with
733 a default precision of 6. This more closely matches str(), and
734 reduces surprises when adding alignment flags to the empty
735 presentation type. This also affects the new complex.__format__ in
736 the same way.
737
Martin v. Löwis011e8422009-05-05 04:43:17 +0000738- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
739
R. David Murrayb18500d2009-05-04 22:59:07 +0000740- Issue #5890: in subclasses of 'property' the __doc__ attribute was
741 shadowed by classtype's, even if it was None. property now
742 inserts the __doc__ into the subclass instance __dict__.
743
Antoine Pitrou244651a2009-05-04 18:56:13 +0000744- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
745 sequences. Patch by Nick Barnes and Victor Stinner.
746
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000747- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000748
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000749- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
750 received a new method, detach(). detach() disconnects the underlying stream
751 from the buffer or text IO and returns it.
752
Mark Dickinson33841c32009-05-01 15:37:04 +0000753- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
754 floats with absolute value over 1e50. Also remove length
755 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
756 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000757
Eric Smith741191f2009-05-06 13:08:15 +0000758- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000759 format(complex(1, 2./3), '.5') now produces a sensible result.
760
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000761- Issue #5864: Fix empty format code formatting for floats so that it
762 never gives more than the requested number of significant digits.
763
Eric Smith6dc46f52009-04-27 20:39:49 +0000764- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
765 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
766
Eric Smithcc32a112009-04-26 21:35:14 +0000767- Issue #5835: Deprecate PyOS_ascii_formatd.
768
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000769- Issue #4971: Fix titlecase for characters that are their own
770 titlecase, but not their own uppercase.
771
Benjamin Peterson193152c2009-04-25 01:08:45 +0000772- Issue #5283: Setting __class__ in __del__ caused a segfault.
773
Mark Dickinsonad476da2009-04-23 19:14:16 +0000774- Issue #5816: complex(repr(z)) now recovers z exactly, even when
775 z involves nans, infs or negative zeros.
776
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000777- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000778
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000779- Issue #1869 (and many duplicates): make round(x, n) correctly
780 rounded for a float x, by using the decimal <-> binary conversions
781 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
782 consistently agrees with format(x, '.2f').
783
Benjamin Petersonae937c02009-04-18 20:54:08 +0000784- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
785 some builtin types.
786
Eric Smith0923d1d2009-04-16 20:16:10 +0000787- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
788
Eric Smith35e84722009-04-16 20:21:28 +0000789- Issue #5515: str.format() type 'n' combined with commas and leading
790 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000791
792- Implement PEP 378, Format Specifier for Thousands Separator, for
793 floats.
794
Mark Dickinson3370cce2009-04-17 22:40:53 +0000795- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000796 1e11, not 1e12. This avoids printing 13 significant digits in
797 situations where only 12 of them are correct. Example problem
798 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
799 long time.)
800
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000801- Issue #1580: On most platforms, use a 'short' float repr: for a
802 finite float x, repr(x) now outputs a string based on the shortest
803 sequence of decimal digits that rounds to x. Previous behaviour was
804 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000805 Another minor difference is that the new repr switches to
806 exponential notation at 1e16 instead of the previous 1e17; this
807 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000808
809 There's a new sys attribute sys.float_repr_style, which takes
810 the value 'short' to indicate that we're using short float repr,
811 and 'legacy' if the short float repr isn't available for one
812 reason or another.
813
814 The float repr change involves incorporating David Gay's 'perfect
815 rounding' code into the Python core (it's in Python/dtoa.c). As a
816 secondary consequence, all string-to-float and float-to-string
817 conversions (including all float formatting operations) will be
818 correctly rounded on these platforms.
819
820 See issue 1580 discussions for details of platforms for which
821 this change does not apply.
822
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000823- Issue #5759: float() didn't call __float__ on str subclasses.
824
Georg Brandlabc38772009-04-12 15:51:51 +0000825- The string.maketrans() function is deprecated; there is a new static method
826 maketrans() on the bytes and bytearray classes. This removes confusion about
827 the types string.maketrans() is supposed to work with, and mirrors the
828 methods available on the str class.
829
R. David Murraydc6da8a2009-04-09 22:16:43 +0000830- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
831 its clarity and its speed.
832
Matthias Klose091c7b12009-04-07 13:24:27 +0000833- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
834 to avoid compiler warnings.
835
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000836- Issue #3739: The unicode-internal encoder now reports the number of characters
837 consumed like any other encoder (instead of the number of bytes).
838
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000839Installation
840------------
841
842- Issue #5756: Install idle and pydoc with a 3 suffix.
843
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000844Library
845-------
846
Martin v. Löwis403117a2009-05-24 19:19:17 +0000847- Issue #5311: bdist_msi can now build packages that do not depend on a
848 specific Python version.
849
Raymond Hettingereb816952009-05-29 01:22:18 +0000850- Issue #5150: IDLE's format menu now has an option to strip trailing
851 whitespace.
852
Vinay Sajipaffbd872009-06-11 10:11:47 +0000853- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000854 the right type checkings anymore.
855
Thomas Heller00cfc372009-05-05 19:04:40 +0000856- Issue #4875: On win32, ctypes.util.find_library does no longer
857 return directories.
858
Georg Brandl243ad662009-05-05 09:00:19 +0000859- Issue #5142: Add the ability to skip modules while stepping to pdb.
860
Georg Brandl991f9202009-05-05 08:31:54 +0000861- Issue #1309567: Fix linecache behavior of stripping subdirectories when
862 looking for files given by a relative filename.
863
Georg Brandleaa84ef2009-05-05 08:14:33 +0000864- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
865 turtle demos in Demo/turtle.
866
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000867- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
868 extracting a file to the root directory.
869
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000870- Issue #5913: os.listdir() should fail for empty path on windows.
871
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000872- Issue #5084: unpickling now interns the attribute names of pickled objects,
873 saving memory and avoiding growth in size of subsequent pickles. Proposal
874 and original patch by Jake McGuire.
875
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000876- The json module now works exclusively with str and not bytes.
877
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000878- Issue #3959: The ipaddr module has been added to the standard library.
879 Contributed by Google.
880
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000881- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
882 error when a named pipe is encountered, rather than blocking infinitely.
883
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000884- Issue #5857: tokenize.tokenize() now returns named tuples.
885
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000886- Issue #4305: ctypes should now build again on mipsel-linux-gnu
887
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000888- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
889 string is already in normalized form, by performing a quick check beforehand.
890 Original patch by Rauli Ruohonen.
891
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000892- Issue #5853: calling a function of the mimetypes module from several threads
893 at once could hit the recursion limit if the mimetypes database hadn't been
894 initialized before.
895
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000896- Issue #5854: Updated __all__ to include some missing names and remove some
897 names which should not be exported.
898
Thomas Heller34596a92009-04-24 20:50:00 +0000899- Issue #3102: All global symbols that the _ctypes extension defines
900 are now prefixed with 'Py' or '_ctypes'.
901
902- Issue #5041: ctypes does now allow pickling wide character.
903
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000904- Issue #5812: For the two-argument form of the Fraction constructor,
905 Fraction(m, n), m and n are permitted to be arbitrary Rational
906 instances.
907
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000908- Issue #5812: Fraction('1e6') is valid: more generally, any string
909 that's valid for float() is now valid for Fraction(), with the
910 exception of strings representing NaNs and infinities.
911
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000912- Issue #5734: BufferedRWPair was poorly tested and had several glaring
913 bugs. Patch by Brian Quinlan.
914
R. David Murray9e94ddf2009-04-13 17:06:33 +0000915- Issue #1161031: fix readwrite select flag handling: POLLPRI now
916 results in a handle_expt_event call, not handle_read_event, and POLLERR
917 and POLLNVAL now call handle_close, not handle_expt_event. Also,
918 dispatcher now has an 'ignore_log_types' attribute for suppressing
919 log messages, which is set to 'warning' by default.
920
Matthias Klosea3d29e82009-04-07 13:13:10 +0000921- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
922 new arguments introduced in 2.5.
923
Walter Dörwald1b08b302009-04-25 14:13:56 +0000924- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
925 makeunicodedata.py and regenerated the Unicode database (This fixes
926 u'\u1d79'.lower() == '\x00').
927
Matthias Klose535336f2009-04-07 13:49:45 +0000928Extension Modules
929-----------------
930
Benjamin Petersone04b6272009-05-04 22:25:21 +0000931- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
932 pwd.
933
Mark Dickinsonea835e72009-04-19 20:40:33 +0000934- Issue #5463: In struct module, remove deprecated float coercion
935 for integer type codes: struct.pack('L', 0.3) should now raise
936 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
937 The version number has been bumped to 0.3.
938
Matthias Klose535336f2009-04-07 13:49:45 +0000939- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
940 using Berkley-DB.
941
Nick Coghlan47384702009-04-22 16:13:36 +0000942Tests
943-----
944
945- Issue #5354: New test support function import_fresh_module() makes
946 it easy to import both normal and optimised versions of modules.
947 test_heapq and test_warnings have been adjusted to use it, tests for
948 other modules with both C and Python implementations in the stdlib
949 can be adjusted to use it over time.
950
Walter Dörwald4ba80132009-04-25 12:48:43 +0000951- Issue #5837: Certain sequences of calls to set() and unset() for
952 support.EnvironmentVarGuard objects restored the environment variables
953 incorrectly on __exit__.
954
Benjamin Petersonb173f782009-05-05 22:31:58 +0000955C-API
956-----
957
958- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
959
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000960
Benjamin Petersond1735892009-03-07 18:46:21 +0000961What's New in Python 3.1 alpha 2?
962=================================
963
Benjamin Peterson88f14352009-04-04 21:06:52 +0000964*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000965
966Core and Builtins
967-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000968
Eric Smith1e1d7d22009-04-03 22:25:33 +0000969- Implement PEP 378, Format Specifier for Thousands Separator, for
970 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000971
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000972- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
973
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000974- Issue #5499: The 'c' code for argument parsing functions now only accepts a
975 byte, and the 'C' code only accepts a unicode character.
976
Georg Brandl406b3d82009-04-11 21:24:37 +0000977- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
978 when hitting the recursion limit under certain circumstances.
979
Brett Cannon0759dd62009-04-01 18:13:07 +0000980- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
981
Georg Brandlab6f2f62009-03-31 04:16:10 +0000982- Fix a segfault when running test_exceptions with coverage, caused by
983 insufficient checks in accessors of Exception.__context__.
984
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000985- Issue #5604: non-ASCII characters in module name passed to
986 imp.find_module() were converted to UTF-8 while the path is
987 converted to the default filesystem encoding, causing nonsense.
988
Benjamin Peterson09832742009-03-26 17:15:46 +0000989- Issue #5126: str.isprintable() returned False for space characters.
990
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000991- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
992 the end sys.path, for compatibility with the system install of Python.
993
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000994- Issue #4688: Add a heuristic so that tuples and dicts containing only
995 untrackable objects are not tracked by the garbage collector. This can
996 reduce the size of collections and therefore the garbage collection overhead
997 on long-running programs, depending on their particular use of datatypes.
998
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000999- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1000 improve its performance. Long divisions and remainder operations
1001 are now between 50% and 150% faster.
1002
Mark Dickinsonbd792642009-03-18 20:06:12 +00001003- Issue #4258: Make it possible to use base 2**30 instead of base
1004 2**15 for the internal representation of integers, for performance
1005 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1006 --enable-big-digits option to configure, which overrides the
1007 default. Add sys.int_info structseq to provide information about
1008 the internal format.
1009
Mark Dickinson081dfee2009-03-18 14:47:41 +00001010- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1011 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1012 and sizeof(Py_UNICODE) == 2.
1013
Eric Smith8ec90442009-03-14 12:29:34 +00001014- Issue #5237: Allow auto-numbered fields in str.format(). For
1015 example: '{} {}'.format(1, 2) == '1 2'.
1016
Antoine Pitrou652e7072009-03-13 19:25:20 +00001017- Issue #5392: when a very low recursion limit was set, the interpreter would
1018 abort with a fatal error after the recursion limit was hit twice.
1019
Matthias Klose042f1332009-04-04 14:32:42 +00001020- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1021 short file names.
1022
Benjamin Petersond1735892009-03-07 18:46:21 +00001023Library
1024-------
1025
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001026- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001027 mailbox.MH.get_message().
1028
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001029- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1030 error substitutions from non-strict codec error callbacks in
1031 incrementalencoder and StreamWriter.
1032
Georg Brandl33c28812009-04-01 23:07:29 +00001033- Issue #5656: Fix the coverage reporting when running the test suite with
1034 the -T argument.
1035
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001036- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1037
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001038- Issue #5624: Fix the _winreg module name still used in several modules.
1039
Benjamin Petersona1b49012009-03-31 23:11:32 +00001040- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1041
Jesse Nollera9314042009-03-31 22:36:44 +00001042- Issue #5619: Multiprocessing children disobey the debug flag and causes
1043 popups on windows buildbots. Patch applied to work around this issue.
1044
Jesse Noller32d68c22009-03-31 18:48:42 +00001045- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1046
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001047- Issue #5387: Fixed mmap.move crash by integer overflow.
1048
Jesse Nollerf8d00852009-03-31 03:25:07 +00001049- Issue #5261: Patch multiprocessing's semaphore.c to support context
1050 manager use: "with multiprocessing.Lock()" works now.
1051
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001052- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1053 bytes already but the failure was non-obvious.
1054
Jesse Noller7af4ef82009-03-30 16:47:15 +00001055- Issue #5177: Multiprocessing's SocketListener class now uses
1056 socket.SO_REUSEADDR on all connections so that the user no longer needs
1057 to wait 120 seconds for the socket to expire.
1058
Benjamin Peterson48e24782009-03-29 13:02:52 +00001059- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1060
Antoine Pitrou66994e12009-03-29 00:45:26 +00001061- Issue #1174606: Calling read() without arguments of an unbounded file
1062 (typically /dev/zero under Unix) could crash the interpreter.
1063
Benjamin Peterson59406a92009-03-26 17:10:29 +00001064- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1065 io.BufferedRandom have been deprecated for removal in Python 3.2.
1066
Lars Gustäbel42e00912009-03-22 20:34:29 +00001067- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1068 forever on incomplete input. That caused tarfile.open() to hang when used
1069 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1070 partial bzip2 compressed data.
1071
Mark Dickinson79f52032009-03-17 23:12:51 +00001072- Issue #2110: Add support for thousands separator and 'n' type
1073 specifier to Decimal.__format__
1074
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001075- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1076 '>' alignment characters.
1077
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001078- The error detection code in FileIO.close() could fail to reflect the `errno`
1079 value, and report it as -1 instead.
1080
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001081- Issue #5016: FileIO.seekable() could return False if the file position
1082 was negative when truncated to a C int. Patch by Victor Stinner.
1083
Mark Dickinsonae681df2009-03-21 10:26:31 +00001084Extension Modules
1085-----------------
1086
Benjamin Petersone099b372009-04-04 17:09:35 +00001087- Issue #5391: mmap now deals exclusively with bytes.
1088
Mark Dickinsonae681df2009-03-21 10:26:31 +00001089- Issue #5463: In struct module, remove deprecated overflow wrapping
1090 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001091 struct.error instead of returning b'\xff\xff\xff\xff'. The
1092 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1093 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001094
Benjamin Petersond1735892009-03-07 18:46:21 +00001095
Benjamin Petersona58a6262009-03-07 16:34:40 +00001096What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001097================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001098
Benjamin Petersona58a6262009-03-07 16:34:40 +00001099*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001100
1101Core and Builtins
1102-----------------
1103
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001104- The io module has been reimplemented in C for speed.
1105
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001106- Give dict views an informative __repr__.
1107
Eric Smith5e5c0db2009-02-20 14:25:03 +00001108- Issue #5247: Improve error message when unknown format codes are
1109 used when using str.format() with str, int, and float arguments.
1110
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001111- Issue #5249: time.strftime returned malformed string when format string
1112 contained non ascii character on windows.
1113
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001114- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1115 source has already been decoded into str.
1116
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001117- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1118 rotating the object pointer by 4 bits to the right.
1119
Mark Dickinson87ec0852009-02-09 17:15:59 +00001120- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1121 it now forces its argument to double before testing for infinity.
1122
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001123- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1124 returns a non-number type.
1125
Benjamin Peterson87618552009-02-08 15:00:52 +00001126- Issue #5182: Removed memoryview.__str__.
1127
Mark Dickinsonc008a172009-02-01 13:59:22 +00001128- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1129 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001130 the type definition cmpfunc. The tp_compare slot has been renamed
1131 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001132
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001133- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001134 were suppressing all exceptions. These include list() and bytearray().
1135
Mark Dickinson1124e712009-01-28 21:25:58 +00001136- Issue #4707: round(x, n) now returns an integer if x is an integer.
1137 Previously it returned a float.
1138
Antoine Pitroub52ec782009-01-25 16:34:23 +00001139- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1140 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1141 evaluation loop is compiled with a new dispatch mechanism which gives
1142 speedups of up to 20%, depending on the system, on various benchmarks.
1143
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001144- Issue #4874: Most builtin decoders now reject unicode input.
1145
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001146- Issue #4842: Don't allow trailing 'L' when constructing an integer
1147 from a string.
1148
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001149- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1150
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001151- Issue #4838: When a module is deallocated, free the memory backing the
1152 optional module state data.
1153
Mark Dickinson8055afd2009-01-17 10:04:45 +00001154- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1155 type to (void *).
1156
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001157- Issue #4935: The overflow checking code in the expandtabs() method common
1158 to str, bytes and bytearray could be optimized away by the compiler, letting
1159 the interpreter segfault instead of raising an error.
1160
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001161- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1162 __next__ method.
1163
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001164- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1165 function no longer attempt to call the __long__ slot to convert an object
1166 to an integer. Only the __int__ and __trunc__ slots are examined.
1167
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001168- Issue #4893: Use NT threading on CE.
1169
Martin v. Löwisec59d042009-01-12 07:59:10 +00001170- Issue #4915: Port sysmodule to Windows CE.
1171
Antoine Pitrouab868312009-01-10 15:40:25 +00001172- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1173 common cases are optimized thanks to a dedicated fast path and a moderate
1174 amount of loop unrolling.
1175
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001176- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1177 collecting the oldest generation) so that allocating lots of objects without
1178 destroying them does not show quadratic performance. Based on a proposal by
1179 Martin von Löwis at
1180 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1181
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001182- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001183 having been closed (for instance, a read() call could return some
1184 previously buffered data). Patch by Dmitry Vasiliev.
1185
Antoine Pitrou05608432009-01-09 18:53:14 +00001186- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1187 flag to work properly. Furthermore, when specifying -u, the text stdout
1188 and stderr streams have line-by-line buffering enabled (the default being
1189 to buffer arbitrary chunks of data).
1190
Raymond Hettinger35631532009-01-09 03:58:09 +00001191- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1192 instead of ints (reducing its size from 4 to 8 times thereby reducing
1193 Python's overall memory).
1194
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001195- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1196 an existing .py counterpart, override the co_filename attributes of all
1197 code objects if the original filename is obsolete (which can happen if the
1198 file has been renamed, moved, or if it is accessed through different paths).
1199 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1200
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001201- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1202 one byte. Also fixes the meaning of len() so that it returns the number of
1203 items, rather than the size in bytes.
1204
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001205- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1206
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001207- Issue #4747: When the terminal does not use utf-8, executing a script with
1208 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1209
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001210- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001211 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001212
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001213- Issue #3680: Reference cycles created through a dict, set or deque iterator
1214 did not get collected.
1215
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001216- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1217 where the tp_hash and tp_dict slots are both NULL.
1218
Georg Brandlccc47b62008-12-28 11:44:14 +00001219- Issue #4759: None is now allowed as the first argument of
1220 bytearray.translate(). It was always allowed for bytes.translate().
1221
Skip Montanaro80072cb2008-12-23 03:51:14 +00001222- Added test case to ensure attempts to read from a file opened for writing
1223 fail.
1224
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001225- Issue #3106: Speedup some comparisons (str/str and int/int).
1226
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001227- Issue #2183: Simplify and optimize bytecode for list, dict and set
1228 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1229
Antoine Pitrou621601a2008-12-17 23:18:19 +00001230- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1231 print elapsed times, not only when some objects are uncollectable /
1232 unreachable. Original patch by Neil Schemenauer.
1233
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001234- Issue #3439: Add a bit_length method to int.
1235
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001236- Issue #2173: When getting device encoding, check that return value of
1237 nl_langinfo is not the empty string. This was causing silent build
1238 failures on OS X.
1239
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001240- Issue #4597: Fixed several opcodes that weren't always propagating
1241 exceptions.
1242
1243- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001244 context manager returns a value that cannot be converted to a bool.
1245
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001246- Issue #4445: Replace "sizeof(PyBytesObject)" with
1247 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1248 bytes instances. On a typical machine this saves 3 bytes of memory
1249 (on average) per allocation of a bytes instance.
1250
Christian Heimesa872de52008-12-05 08:26:55 +00001251- Issue #4533: File read operation was dreadfully slow due to a slowly
1252 growing read buffer. Fixed by using the same growth rate algorithm as
1253 Python 2.x.
1254
Antoine Pitrou5504e892008-12-06 21:27:53 +00001255- Issue #4509: Various issues surrounding resize of bytearray objects to
1256 which there are buffer exports (e.g. memoryview instances).
1257
Georg Brandlf9734072008-12-07 15:30:06 +00001258- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1259 method on file objects with closefd=False. The file descriptor is still
1260 kept open but the file object behaves like a closed file. The ``FileIO``
1261 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001262
Antoine Pitroubc420402008-12-07 20:14:49 +00001263- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1264 larger than 1.
1265
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001266- Issue #4748: Lambda generators no longer return a value.
1267
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001268- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1269
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001270- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1271 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1272 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1273 of using the replace error handler in PyUnicode_DecodeUTF8().
1274
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001275Library
1276-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001277
Tarek Ziadé53fdb182009-10-24 13:42:10 +00001278- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1279 raised. Initial patch by Ezio Melotti.
1280
Tarek Ziadé3cc12f62009-07-22 09:03:01 +00001281- Issue #6545: Removed assert statements in distutils.Extension, so the
1282 behavior is similar when used with -O.
1283
Tarek Ziadé24448fa2009-07-11 11:01:14 +00001284- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
1285 "PyInit" prefix, rather than "init".
1286
Georg Brandld80344f2009-08-13 12:26:19 +00001287- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1288
Tarek Ziadé7e646002009-07-10 09:16:07 +00001289- Issue #6455: Fixed test_build_ext under win32.
1290
Tarek Ziadé35c88a82009-07-04 02:05:51 +00001291- Issue #6413: Fixed the log level in distutils.dist for announce.
1292
Tarek Ziadé385029f2009-07-03 08:37:27 +00001293- Issue #6403: Fixed package path usage in build_ext.
1294
Tarek Ziadé2c3de402009-06-29 16:46:14 +00001295- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1296 extension in a subdirectory if the extension name had dots.
1297
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001298- Issue #6287: Added the license field in Distutils documentation.
1299
Tarek Ziadéff543362009-06-11 09:25:41 +00001300- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1301
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001302- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1303 in Makefiles. This prevents compile errors when using syntax like:
1304 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1305
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001306- Issue #6131: test_modulefinder leaked when run after test_distutils.
1307 Patch by Hirokazu Yamamoto.
1308
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001309- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1310
Vinay Sajipaffbd872009-06-11 10:11:47 +00001311- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001312 and tests on pywin32 by Tim Golden.
1313
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001314- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1315
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001316- Issue #6046: Fixed the library extension when distutils build_ext is used
1317 inplace. Initial patch by Roumen Petrov.
1318
Vinay Sajipaffbd872009-06-11 10:11:47 +00001319- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001320 subcommand.
1321
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001322- Issue #6022: a test file was created in the current working directory by
1323 test_get_outputs in Distutils.
1324
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001325- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1326 inplace option. Initial patch by kxroberto.
1327
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001328- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1329 for old-style extensions.
1330
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001331- Issue #5976: Fixed Distutils test_check_environ.
1332
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001333- Issue #5941: Distutils build_clib command was not working anymore because
1334 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1335 Makefile besides AR and make Distutils use it. Original patch by David
1336 Cournapeau.
1337
R. David Murrayb507d2e2009-04-29 15:34:32 +00001338- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1339
Vinay Sajipaffbd872009-06-11 10:11:47 +00001340- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001341 anymore.
1342
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001343- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001344 sysconfig.get_config_vars.
1345
Tarek Ziadé23336082009-04-25 12:39:56 +00001346- Issue #4951: Fixed failure in test_httpservers.
1347
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001348- Issue #5795: Fixed test_distutils failure on Debian ppc.
1349
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001350- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1351
Georg Brandl1f9fa312009-04-27 16:42:58 +00001352- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1353 a value in SafeConfigParser.
1354
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001355- Issue #5732: added a new command in Distutils: check.
1356
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001357- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001358 platforms. Initial patch by Paul Moore.
1359
Tarek Ziadéf6370502009-04-05 22:57:21 +00001360- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1361 Initial fix by Steven Bethard.
1362
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001363- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1364 Initial fix by Wayne Davison.
1365
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001366- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001367
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001368- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001369
Brett Cannonf47e84c2009-04-01 16:06:01 +00001370- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1371 instead of performing them in functions. Helps prevent import deadlocking in
1372 threads.
1373
R. David Murraye59482e2009-04-01 03:42:00 +00001374- Issue #2522: locale.format now checks its first argument to ensure it has
1375 been passed only one pattern, avoiding mysterious errors where it appeared
1376 that it was failing to do localization.
1377
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001378- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1379 Brandl.
1380
Antoine Pitrou350370c2009-03-14 00:13:13 +00001381- Issue #1222: locale.format() bug when the thousands separator is a space
1382 character.
1383
Tarek Ziadé516db942009-03-11 12:52:00 +00001384- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1385 Tim Golden.
1386
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001387- collections.deque() objects now have a read-only attribute called maxlen.
1388
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001389- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1390 it is has been populated and properly configured in order to prevent
1391 window flashing.
1392
Guilherme Polo56f5be52009-03-07 01:54:57 +00001393- Issue #4792: Prevent a segfault in _tkinter by using the
1394 guaranteed to be safe interp argument given to the PythonCmd in place of
1395 the Tcl interpreter taken from a PythonCmd_ClientData.
1396
1397- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1398
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001399- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1400 Original patch by Akira Kitada.
1401
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001402- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1403
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001404- Issue #5385: Fixed mmap crash after resize failure on windows.
1405
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001406- Issue #5179: Fixed subprocess handle leak on failure on windows.
1407
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001408- PEP 372: Added collections.OrderedDict().
1409
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001410- The _asdict() for method for namedtuples now returns an OrderedDict().
1411
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001412- configparser now defaults to using an ordered dictionary.
1413
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001414- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1415 import guess_extension`` was used.
1416
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001417- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1418 with same tagname but larger size than first map. (Windows)
1419
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001420- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1421 overrun.
1422
Tarek Ziadéf0721222009-02-28 10:16:43 +00001423- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1424 bdist_rpm command.
1425
1426- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1427
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001428- Issue #5052: make Distutils compatible with 2.3 again.
1429
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001430- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1431 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001432
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001433- Issue #5287: Add exception handling around findCaller() call to help out
1434 IronPython.
1435
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001436- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1437 The file was resized to wrong size.
1438
1439- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1440
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001441- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001442 from the package_data and the data_files metadata.
1443
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001444- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001445 support.TempdirManager, to avoid writing in the tests directory.
1446
Tarek Ziadé68c50952009-02-13 23:04:17 +00001447- Issue #4524: distutils build_script command failed with --with-suffix=3.
1448 Initial patch by Amaury Forgeot d'Arc.
1449
Tarek Ziadé811d6242009-02-13 22:26:15 +00001450- Issue #2461: added tests for distutils.util
1451
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001452- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1453 which inherited from numbers.py which did not have __slots__ defined. The
1454 numbers hierarchy now has its own __slots__ declarations.
1455
Antoine Pitroub353c122009-02-11 00:39:14 +00001456- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1457 encoding.
1458
Thomas Heller465c8022009-02-10 18:59:04 +00001459- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1460 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1461
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001462- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1463 under NT and OS2. Patch by Philip Jenvey.
1464
Brett Cannonbefb14f2009-02-10 02:10:16 +00001465- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1466 to be recreated. This avoids a timing hole thanks to the old reliance on the
1467 ctime of the files involved.
1468
Guilherme Polob681df42009-02-09 22:33:59 +00001469- Issue #5122: Synchronize tk load failure check to prevent a potential
1470 deadlock.
1471
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001472- Issue #1818: collections.namedtuple() now supports a keyword argument
1473 'rename' which lets invalid fieldnames be automatically converted to
1474 positional names in the form, _1, _2, ...
1475
Guilherme Poloae098992009-02-09 16:44:24 +00001476- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1477
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001478- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1479 public documented method ``ZipImporter.get_filename()``.
1480
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001481- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1482 the execution of packages by looking for and executing a ``__main__``
1483 submodule when a package name is supplied. Initial patch by Andi
1484 Vajda.
1485
Guilherme Polo491aee22009-02-06 23:16:11 +00001486- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1487 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1488 Tkapp_Call when calling from a thread different than the one that created
1489 the Tcl interpreter. Patch by Robert Hancock.
1490
Eric Smith0e5b5622009-02-06 01:32:42 +00001491- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1492 Ross Light.
1493
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001494- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001495 environment/Makefile. Patch by Douglas Greiman.
1496
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001497- Issue #1276768: The verbose option was not used in the code of
1498 distutils.file_util and distutils.dir_util.
1499
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001500- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001501 --enabled-shared activated. Initial patch by Dave Peterson.
1502
Guilherme Polo7f423952009-02-02 21:17:09 +00001503- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1504
Raymond Hettinger85602262009-02-03 04:19:10 +00001505- The shelve module now defaults to pickle protocol 3.
1506
Brett Cannone61426e2009-01-30 01:31:34 +00001507- Fix a bug in the trace module where a bytes object from co_lnotab had its
1508 items being passed through ord().
1509
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001510- Issue #2047: shutil.move() could believe that its destination path was
1511 inside its source path if it began with the same letters (e.g. "src" vs.
1512 "src.new").
1513
Guilherme Polo5f238482009-01-28 14:41:10 +00001514- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1515
Raymond Hettinger89e12962009-01-26 02:09:03 +00001516- Removed isSequenceType(), isMappingType, and isNumberType() from the
1517 operator module; use the abstract base classes instead. Also removed
1518 the repeat() function; use mul() instead.
1519
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001520- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001521 collections.namedtuple() relied on __name__ being defined.
1522
1523- Backport importlib from Python 3.1. Only the import_module() function has
1524 been backported to help facilitate transitions from 2.7 to 3.1.
1525
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001526- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1527 the tar file was overriden by the gztar one.
1528
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001529- Issue #4863: distutils.mwerkscompiler has been removed.
1530
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001531- Added a new itertools functions: combinations_with_replacement()
1532 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001533
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001534- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001535 allowed non-integer arguments.
1536
Jesse Noller41faa542009-01-25 03:45:53 +00001537- Fix and properly document the multiprocessing module's logging
1538 support, expose the internal levels and provide proper usage
1539 examples.
1540
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001541- Issue #1672332: fix unpickling of subnormal floats, which was
1542 producing a ValueError on some platforms.
1543
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001544- Issue #3881: Help Tcl to load even when started through the
1545 unreadable local symlink to "Program Files" on Vista.
1546
Martin v. Löwis59e47792009-01-24 14:10:07 +00001547- Issue #4710: Extract directories properly in the zipfile module;
1548 allow adding directories to a zipfile.
1549
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001550- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001551 --without-threads argument. When this occurs, _multiprocessing will
1552 be disabled, and not compiled.
1553
Antoine Pitrou08838b62009-01-21 00:55:13 +00001554- Issue #5008: When a file is opened in append mode with the new IO library,
1555 do an explicit seek to the end of file (so that e.g. tell() returns the
1556 file size rather than 0). This is consistent with the behaviour of the
1557 traditional 2.x file object.
1558
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001559- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1560 parameter was set.
1561
Mark Dickinson8dd05142009-01-20 20:43:58 +00001562- Issue #4842: Always append a trailing 'L' when pickling longs using
1563 pickle protocol 0. When reading, the 'L' is optional.
1564
Brett Cannonafccd632009-01-20 02:21:27 +00001565- Add the importlib package.
1566
Jesse Noller9a0fc972009-01-18 21:12:58 +00001567- Issue #4301: Patch the logging module to add processName support, remove
1568 _check_logger_class from multiprocessing.
1569
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001570- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001571 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001572
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001573- Issue #4959: inspect.formatargspec now works for keyword only arguments
1574 without defaults.
1575
Jesse Noller6214edd2009-01-19 16:23:53 +00001576- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1577 for *nix machines for negative handles and large int handles. Without this check
1578 it is possible to segfault the interpreter.
1579
Jesse Nollerb0516a62009-01-18 03:11:38 +00001580- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1581 in sharedctypes.py.
1582
1583- Issue #1225107: inspect.isclass() returned True for instances with a custom
1584 __getattr__.
1585
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001586- Issue #3826 and #4791: The socket module now closes the underlying socket
1587 appropriately when it is being used via socket.makefile() objects
1588 rather than delaying the close by waiting for garbage collection to do it.
1589
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001590- Issue #1696199: Add collections.Counter() for rapid and convenient
1591 counting.
1592
Antoine Pitrou308705e2009-01-10 16:22:51 +00001593- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1594
Thomas Heller5e4e4272009-01-08 09:34:20 +00001595- Issue #4867: Fixed a crash in ctypes when passing a string to a
1596 function without defining argtypes.
1597
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001598- Issue #4272: Add an optional argument to the GzipFile constructor to override
1599 the timestamp in the gzip stream. The default value remains the current time.
1600 The information can be used by e.g. gunzip when decompressing. Patch by
1601 Jacques Frechet.
1602
Mark Dickinson315a20a2009-01-04 21:34:18 +00001603- Restore Python 2.3 compatibility for decimal.py.
1604
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001605- Issue #3638: Remove functions from _tkinter module level that depend on
1606 TkappObject to work with multiple threads.
1607
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001608- Issue #4718: Adapt the wsgiref package so that it actually works with
1609 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001610 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1611
Raymond Hettinger771ed762009-01-03 19:20:32 +00001612- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1613 to the decimal module.
1614
Georg Brandl3a9b0622009-01-03 22:07:57 +00001615- Fractions.from_float() no longer loses precision for integers too big to
1616 cast as floats.
1617
Mark Dickinsonf9236412009-01-02 23:23:21 +00001618- Issue #4812: add missing underscore prefix to some internal-use-only
1619 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1620
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001621- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001622 did unnecessary work in the common case where no key function was specified.
1623
Georg Brandlb1441c72009-01-03 22:33:39 +00001624- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1625 the function is not a generator.
1626
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001627- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1628 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001629
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001630- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001631 function. Original patch by Thomas Heller.
1632
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001633- Issue #3767: Convert Tk object to string in tkColorChooser.
1634
Martin v. Löwise354d782008-12-29 16:03:04 +00001635- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1636
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001637- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1638 the code under test can be written inline if more practical.
1639
Georg Brandldb7b6b92009-01-01 15:53:14 +00001640- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1641 works as expected in the interactive environment.
1642
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001643- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1644 Gabriel Genellina.
1645
Antoine Pitrou180a3362008-12-14 16:36:46 +00001646- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1647 boundary.
1648
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001649- Issue #4223: inspect.getsource() will now correctly display source code
1650 for packages loaded via zipimport (or any other conformant PEP 302
1651 loader). Original patch by Alexander Belopolsky.
1652
1653- Issue #4201: pdb can now access and display source code loaded via
1654 zipimport (or any other conformant PEP 302 loader). Original patch by
1655 Alexander Belopolsky.
1656
1657- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1658 302 conformant loader) will now work correctly in most cases (they
1659 are still subject to the constraints that exist for all code running
1660 from inside a module loaded via a PEP 302 loader and attempting to
1661 perform IO operations based on __file__). Original patch by
1662 Alexander Belopolsky.
1663
1664- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1665 allows backporting to maintenance branches. Original patch by
1666 Alexander Belopolsky.
1667
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001668- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1669 a non-ASCII letter.
1670
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001671- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1672
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001673- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1674 codec cannot be found. This is for compatibility with the builtin behavior.
1675
Facundo Batista708d5812008-12-11 04:20:07 +00001676- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1677 give correct results in the case where one argument is a quiet NaN
1678 and the other is a finite number that requires rounding.
1679
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001680- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1681 libs.
1682
Georg Brandlf9734072008-12-07 15:30:06 +00001683- Added the subprocess.check_call_output() convenience function to get output
1684 from a subprocess on success or raise an exception on error.
1685
1686- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1687 support unusual filenames (such as those containing semi-colons) in
1688 Content-Disposition headers.
1689
1690- Issue #4384: Added logging integration with warnings module using
1691 captureWarnings(). This change includes a NullHandler which does nothing;
1692 it will be of use to library developers who want to avoid the "No handlers
1693 could be found for logger XXX" message which can appear if the library user
1694 doesn't configure logging.
1695
1696- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1697 exception.
1698
Georg Brandleee31162008-12-07 15:15:22 +00001699- Issue #4529: fix the parser module's validation of try-except-finally
1700 statements.
1701
1702- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1703 not a malformed option.
1704
1705- Added the subprocess.check_output() convenience function to get output
1706 from a subprocess on success or raise an exception on error.
1707
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001708- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1709 the corresponding tests now pass.
1710
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001711- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1712 it was calling the wrong open() function.
1713
Fred Drake9a0a65b2008-12-04 19:24:50 +00001714- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1715 support unusual filenames (such as those containing semi-colons) in
1716 Content-Disposition headers.
1717
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001718- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1719 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1720
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001721- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1722 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1723 and getservbyport().
1724
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001725- Windows locale mapping updated to Vista.
1726
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001727Tools/Demos
1728-----------
1729
Antoine Pitrou8a681222009-02-07 17:13:31 +00001730- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1731 and make it 2.6-compatible.
1732
Guilherme Poloa7d27972009-01-28 16:06:51 +00001733- Ttk demos added in Demo/tkinter/ttk/
1734
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001735- Issue #4677: add two list comprehension tests to pybench.
1736
Georg Brandlb1441c72009-01-03 22:33:39 +00001737
1738Build
1739-----
1740
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001741- Issue #6094: Build correctly with Subversion 1.7.
1742
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001743- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1744
Antoine Pitrou8966c992009-05-01 21:18:27 +00001745- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1746 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1747
Matthias Klose55708cc2009-04-30 08:06:49 +00001748- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001749 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001750
Matthias Klose906785c2009-02-22 23:18:38 +00001751- Link the shared python library with $(MODLIBS).
1752
Martin v. Löwis11f72102009-02-10 13:13:30 +00001753- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1754
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001755- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1756
Martin v. Löwise97637d2009-01-11 09:45:11 +00001757- Issue #4895: Use _strdup on Windows CE.
1758
Georg Brandlb1441c72009-01-03 22:33:39 +00001759- Issue #4472: "configure --enable-shared" now works on OSX
1760
1761- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1762
1763- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1764
1765- Issue #4289: Remove Cancel button from AdvancedDlg.
1766
1767- Issue #1656675: Register a drop handler for .py* files on Windows.
1768
1769- Issue #4120: Exclude manifest from extension modules in VS2008.
1770
1771- Issue #4091: Install pythonxy.dll in system32 again.
1772
1773- Issue #4018: Disable "for me" installations on Vista.
1774
1775- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1776
1777- Issue #4204: Fixed module build errors on FreeBSD 4.
1778
1779
1780C-API
1781-----
1782
Mark Dickinson21776072009-02-10 16:13:25 +00001783- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1784 for negative arguments. Previously, it raised TypeError.
1785
Georg Brandlb1441c72009-01-03 22:33:39 +00001786- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1787
1788- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1789 the GIL is released, or owned by another thread.
1790
1791- Issue #4122: On Windows, fix a compilation error when using the
1792 Py_UNICODE_ISSPACE macro in an extension module.
1793
1794
Mark Dickinsone675f082008-12-11 21:56:00 +00001795Extension Modules
1796-----------------
1797
Gregory P. Smith365a1862009-02-12 07:35:29 +00001798- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1799 supporting objects as input no matter how it was compiled (built in
1800 implementations or external openssl library).
1801
Mark Dickinson29500f62009-01-15 15:36:10 +00001802- Issue #4397: Fix occasional test_socket failure on OS X.
1803
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001804- Issue #4279: Fix build of parsermodule under Cygwin.
1805
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001806- Issue #4751: hashlib now releases the GIL when hashing large buffers
1807 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1808 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1809
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001810- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1811
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001812- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1813 or decompress several streams at once on multi-CPU systems. Also, the GIL
1814 is now released when computing the CRC of a large buffer. Patch by ebfe.
1815
Georg Brandlb1441c72009-01-03 22:33:39 +00001816- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1817
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001818- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1819
Mark Dickinsone675f082008-12-11 21:56:00 +00001820- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1821 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001822
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001823- Issue #4583: array.array would not always prohibit resizing when a buffer
1824 has been exported, resulting in an interpreter crash when accessing the
1825 buffer.
1826
Martin v. Löwis841edad2008-11-30 10:36:49 +00001827
Jack Diederiche0cbd692009-04-01 04:27:09 +00001828- Issue #5228: Make functools.partial objects can now be pickled.
1829
Guilherme Polo9de29af2009-01-28 20:40:48 +00001830Tests
1831-----
1832
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001833- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1834 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1835 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1836 skip the tests if DISPLAY is defined but can't be used.
1837
R. David Murraya21e4ca2009-03-31 23:16:50 +00001838- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001839 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001840 from test support, which does the conversion.
1841
Guilherme Polo9de29af2009-01-28 20:40:48 +00001842- Issue #5083: New 'gui' resource for regrtest.
1843
1844
Brett Cannon7317c1e2008-11-25 19:19:17 +00001845Docs
1846----
1847
Georg Brandl52b92cc2008-05-25 09:43:03 +00001848
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001849**(For information about older versions, consult the HISTORY file.)**