blob: c91a22cbc6b8efc37c4d9b68df76dd966a21c6eb [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
Benjamin Peterson109d3ab2010-01-13 03:53:14 +000068- Issue #7681: Use floor division in appropiate places in the wave module.
69
Tarek Ziadé343e2ff2010-01-11 23:23:44 +000070- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
71 Extension extra options may change the output without changing the .c
72 file). Initial patch by Collin Winter.
73
Tarek Ziadé5e9615f2010-01-09 00:03:39 +000074- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
75 gcc when it has a fully qualified configuration prefix. Initial patch
76 by Arfrever.
77
Antoine Pitrou1a2d3562010-01-08 17:56:16 +000078- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
79 the destruction of weakref'ed objects while iterating.
80
Antoine Pitrou901d81e2010-01-07 18:02:53 +000081- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
82 Victor Stinner.
83
R. David Murray93a59652010-01-06 20:12:07 +000084- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
85 opening an empty or very small file.
86
Tarek Ziadéb7e82bb2009-12-21 23:18:02 +000087- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
88 MSVC XML Manifest file in text mode so string patterns can be used
89 in regular expressions.
90
Tarek Ziadé63d14c02009-12-21 00:08:17 +000091- Issue #7552: Removed line feed in the base64 Authorization header in
92 the Distutils upload command to avoid an error when PyPI reads it.
93 This occurs on long passwords. Initial patch by JP St. Pierre.
94
Senthil Kumaran4b9fbeb2009-12-20 07:18:22 +000095- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
96 Tatsuhiro Tsujikawa.
97
Antoine Pitrouc8428d32009-12-14 18:23:30 +000098- Issue #4757: `zlib.compress` and other methods in the zlib module now
99 raise a TypeError when given an `str` object (rather than a `bytes`-like
100 object). Patch by Victor Stinner and Florent Xicluna.
101
Benjamin Peterson6b59f772009-12-13 19:30:15 +0000102- Issue #7349: Make methods of file objects in the io module accept None as an
103 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
104 the same as passing no argument.
105
R. David Murraya6cdd832009-12-12 18:38:24 +0000106- Issue #5949: added check for correct lineends in input from IMAP server
107 in imaplib.
108
Raymond Hettinger64eaa202009-12-10 05:36:11 +0000109- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
110
Antoine Pitrou4fad6bd2009-12-08 16:00:03 +0000111- Issue #6986: Fix crash in the JSON C accelerator when called with the
112 wrong parameter types. Patch by Victor Stinner.
113
Tarek Ziadéd26d5382009-12-06 09:30:47 +0000114- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
115 generated in Distutils. Patch by Stephen Emslie.
116
Martin v. Löwis8ab31012009-12-03 21:14:10 +0000117- Issue #4120: Drop reference to CRT from manifest when building extensions with
118 msvc9compiler.
119
Raymond Hettinger6c8ee7a2009-11-30 21:55:17 +0000120- Issue #7410: deepcopy of itertools.count was resetting the count.
121
Antoine Pitroubcc63a82009-11-28 16:16:09 +0000122- Issue #4486: When an exception has an explicit cause, do not print its
123 implicit context too. This affects the `traceback` module as well as
124 built-in exception printing.
125
Senthil Kumarand884f8a2009-11-23 19:06:11 +0000126- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
127
Tarek Ziadéfd9ac222009-11-19 05:41:34 +0000128- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
129 be 2.
130
Raymond Hettingerb868e632009-11-19 01:02:56 +0000131- Issue #3976: pprint for sets, frozensets, and dicts now succeed when
132 they contain unorderable types.
133
Benjamin Peterson3a2249d2009-11-19 21:26:17 +0000134- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
135 of __str__.
Benjamin Petersona1f9c042009-11-19 03:10:36 +0000136
Lars Gustäbel7dfcef52009-11-18 21:11:27 +0000137- Issue #7341: Close the internal file object in the TarFile constructor in
138 case of an error.
139
Tarek Ziadé2cc70482009-11-18 10:19:38 +0000140- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
141 Windows box. Help provided by David Bolen.
142
Nick Coghlanb830a232009-11-15 23:27:31 +0000143- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
144
Antoine Pitrou4def5152009-11-13 22:39:40 +0000145- Issue #7318: multiprocessing now uses a timeout when it fails to establish
146 a connection with another process, rather than looping endlessly. The
147 default timeout is 20 seconds, which should be amply sufficient for
148 local connections.
149
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000150- Issue #7282: Fix a memory leak when an RLock was used in a thread other
151 than those started through `threading.Thread` (for example, using
152 `_thread.start_new_thread()`).
153
Brett Cannon3d26b952009-11-07 23:57:20 +0000154- Issue #7187: Importlib would not silence the IOError raised when trying to
155 write new bytecode when it was made read-only.
156
Antoine Pitroua9546072009-11-05 13:51:19 +0000157- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
158 which are part of a reference cycle.
159
Antoine Pitrou868b5782009-11-02 11:40:19 +0000160- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
161 a modification is done through it. This fixes inconsistencies and test
162 failures on systems with slightly bogus mtime behaviour.
163
Gregory P. Smith6c4a7252009-11-01 20:36:24 +0000164- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
165
Gregory P. Smithfc1c75d2009-11-01 18:48:31 +0000166- Issue #7246 & Issue #7208: getpass now properly flushes input before
167 reading from stdin so that existing input does not confuse it and
168 lead to incorrect entry or an IOError. It also properly flushes it
169 afterwards to avoid the terminal echoing the input afterwards on
170 OSes such as Solaris.
171
Mark Dickinson9050bb22009-10-29 12:25:07 +0000172- Issue #7233: Fix a number of two-argument Decimal methods to make
173 sure that they accept an int or long as the second argument. Also
174 fix buggy handling of large arguments (those with coefficient longer
175 than the current precision) in shift and rotate.
176
Antoine Pitroua3af0eb2009-10-27 17:49:21 +0000177- Issue #7205: Fix a possible deadlock when using a BZ2File object from
178 several threads at once.
179
Tarek Ziadéc76bcea2009-10-25 23:16:51 +0000180- Issue #7071: byte-compilation in Distutils is now done with respect to
181 sys.dont_write_bytecode.
182
Mark Dickinson2d4fce22009-10-20 13:40:25 +0000183- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
184 larger than emax.
185
Antoine Pitroueda95e92009-10-19 19:47:59 +0000186- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
187 platforms, and assorted locale fixes by Derk Drukker.
188
Antoine Pitroue566bda2009-10-19 18:24:35 +0000189- Issue #5833: Fix extra space character in readline completion with the
190 GNU readline library version 6.0.
191
Senthil Kumaran11301632009-10-11 06:07:46 +0000192- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
193
R. David Murray290e9392009-10-10 00:57:04 +0000194- Issue #7082: When falling back to the MIME 'name' parameter, the
195 correct place to look for it is the Content-Type header.
196
Benjamin Peterson0c7f9c92009-10-09 21:53:27 +0000197- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
198 builtin tokenizer.
199
Mark Dickinsonb0907612009-10-07 19:24:43 +0000200- Issue #7048: Force Decimal.logb to round its result when that result
201 is too large to fit in the current precision.
202
Antoine Pitrou384c9202009-09-21 21:42:29 +0000203- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitroueda95e92009-10-19 19:47:59 +0000204 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrou384c9202009-09-21 21:42:29 +0000205
Tarek Ziadé0cdc3692009-09-21 13:59:07 +0000206- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
207
Thomas Heller49ac2ac2009-09-18 20:09:57 +0000208- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
209 does now always result in NULL.
210
Thomas Heller35888e22009-09-18 19:46:56 +0000211- Issue #5042: Structure sub-subclass does now initialize correctly
212 with base class positional arguments.
213
Eric Smith53cda532009-09-18 13:59:58 +0000214- Issue #6882: Import uuid creates zombies processes.
215
Matthias Kloseb1117432009-09-13 15:31:14 +0000216- Issue #6635: Fix profiler printing usage message.
217
Matthias Klosed4337802009-09-13 15:29:48 +0000218- Issue #6888: pdb's alias command was broken when no arguments were given.
219
220- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
221 returning NaN or raising InvalidContext. Also, fix infinite recursion
222 in long(Decimal('nan')).
223
224- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
225 with no type specifier.
226
227- Issue #6239: ctypes.c_char_p return value must return bytes.
228
229- Issue #6838: Use a list to accumulate the value instead of
230 repeatedly concatenating strings in http.client's
231 HTTPResponse._read_chunked providing a significant speed increase
232 when downloading large files servend with a Transfer-Encoding of 'chunked'.
233
234- Have importlib raise ImportError if None is found in sys.modules for a
235 module.
236
237- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
238 payloads are now ordered by integer value rather than lexicographically.
239
240- Issue #6163: Fixed HP-UX runtime library dir options in
241 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
242 Michael Haubenwallner.
243
244Extension Modules
245-----------------
246
Mark Dickinson015fa032009-10-08 16:02:50 +0000247- Issue #7078: Set struct.__doc__ from _struct.__doc__.
248
Matthias Klosed4337802009-09-13 15:29:48 +0000249- Issue #6848: Fix curses module build failure on OS X 10.6.
250
Mark Dickinson95078872009-10-04 18:47:48 +0000251Tests
252-----
253
R. David Murray14520952009-12-20 17:37:25 +0000254- Issue #7376: instead of running a self-test (which was failing) when called
255 with no arguments, doctest.py now gives a usage message.
256
R. David Murrayc009b442009-12-14 22:57:04 +0000257- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
258 instead of a hardcoded port number in test_rapid_restart.
259
R. David Murray8054a5d2009-12-04 00:13:33 +0000260- Issue #7431: use TESTFN in test_linecache instead of trying to create a
261 file in the Lib/test directory, which might be read-only for the
262 user running the tests.
263
R. David Murray9f9b46c2009-11-15 00:35:37 +0000264- Issue #7324: add a sanity check to regrtest argument parsing to
265 catch the case of an option with no handler.
266
Antoine Pitrouca154092009-11-13 16:31:51 +0000267- Issue #6551: test_zipimport could import and then destroy some modules of
268 the encodings package, which would make other tests fail further down
269 the road because the internally cached encoders and decoders would point
270 to empty global variables.
271
Antoine Pitroub78ba6b2009-11-11 21:01:33 +0000272- Issue #7295: Do not use a hardcoded file name in test_tarfile.
273
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000274- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
275 primitives such as Lock, RLock, Condition, Event and Semaphore.
276
Brett Cannon142d2362009-11-05 01:34:30 +0000277- Issue #7248 (part 2): Use a unique temporary directory for importlib source
278 tests instead of tempfile.tempdir. This prevents the tests from sharing state
279 between concurrent executions on the same system.
280
281- Issue #7248: In importlib.test.source.util a try/finally block did not make
282 sure that some referenced objects actually were created in the block before
283 calling methods on the object.
284
Antoine Pitrou56e00ca2009-10-27 13:08:37 +0000285- Issue #7055: test___all__ now greedily detects all modules which have an
286 __all__ attribute, rather than using a hardcoded and incomplete list.
287
R. David Murray6bf5a2e82009-10-07 23:54:53 +0000288- Issue #7058: Added save/restore for argv and os.environ to runtest_inner
289 in regrtest, with warnings if the called test modifies them.
290
Mark Dickinson95078872009-10-04 18:47:48 +0000291- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
292
Benjamin Petersonbb81c8c2010-01-09 21:54:39 +0000293C-API
294-----
295
296- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
297 has '\0' at the end.
298
Matthias Klosed4337802009-09-13 15:29:48 +0000299Build
300-----
301
Martin v. Löwis5330aa52009-12-22 10:48:47 +0000302- Switch to OpenSSL 0.9.8l on Windows.
303
Mark Dickinsonee2dd4a2009-10-31 10:20:38 +0000304- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
305 compiles correctly under gcc on x86-64. This fixes a reported
306 problem with the --with-tsc build on x86-64.
307
Matthias Klosed4337802009-09-13 15:29:48 +0000308- Issue #6802: Fix build issues on MacOSX 10.6
309
310- Issue #6801 : symmetric_difference_update also accepts |.
311 Thanks to Carl Chenet.
312
Ronald Oussoren8c067812009-12-24 14:24:05 +0000313- Issue #7541: when using ``python-config`` with a framework install the compiler might
314 use the wrong library.
315
Matthias Klosed4337802009-09-13 15:29:48 +0000316Documentation
317-------------
318
319- Issue #6556: Fixed the Distutils configuration files location explanation
320 for Windows.
321
322
323What's New in Python 3.1.1?
324===========================
325
326*Release date: 2009-08-13*
327
328Core and Builtins
329-----------------
330
Benjamin Peterson044446b2009-08-15 13:25:28 +0000331- Issue #6707: dir() on an uninitialized module caused a crash.
332
Georg Brandl069bcc32009-07-22 12:06:11 +0000333- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
334
Raymond Hettinger63853bb2009-07-27 20:29:18 +0000335- Issue #6573: set.union() stopped processing inputs if an instance of self
336 occurred in the argument chain.
337
R. David Murray10fc3952009-07-19 02:25:02 +0000338- Issue #6070: On posix platforms import no longer copies the execute bit
339 from the .py file to the .pyc file if it is set.
340
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +0000341- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
342 object, and not an int. Fix the corresponding error message, and the
343 documentation.
344
Mark Dickinson8c1e2942009-06-30 15:46:37 +0000345- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
346 This fixes a build failure on HP-UX: int32_t and uint32_t are
347 defined in inttypes.h instead of stdint.h on that platform.
348
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +0000349- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +0000350 the 'surrogateescape' error handler, a string which contains unpaired
351 surrogates.
352
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000353C-API
354-----
355
Mark Dickinsond0ed0db2009-12-03 11:01:53 +0000356- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
357 in PyArg_ParseTupleAndKeywords.
358
Georg Brandl878c3b02009-08-13 08:36:43 +0000359- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
360 NUL: Bogus TypeError detail string.
361
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000362- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +0000363
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000364- The code flags for old __future__ features are now available again.
365
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000366Library
367-------
368
Georg Brandle6700e92009-08-13 08:39:33 +0000369- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
370 DO/DONT correctly.
371
Georg Brandl8a038b22009-08-13 07:52:08 +0000372- Issue #6126: Fixed pdb command-line usage.
373
Antoine Pitrou0473e562009-08-06 20:52:43 +0000374- Issue #6629: Fix a data corruption issue in the new I/O library, which could
375 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
376 "wb+" mode) after having buffered a certain amount of data for reading. This
377 bug was not present in the pure Python implementation.
378
Mark Dickinson825b9932009-08-06 16:08:07 +0000379- Issue #6622: Fix "local variable 'secret' referenced before
380 assignment" bug in POP3.apop.
381
Raymond Hettinger99a13ee2009-08-04 19:13:37 +0000382- Issue #6637: defaultdict.copy() did not work when the default factory
383 was left unspecified. Also, the eval/repr round-trip would fail when
384 the default_factory was None.
385
Mark Dickinson34776ca2009-08-02 20:09:59 +0000386- Issue #2715: Remove remnants of Carbon.File from binhex module.
387
Mark Dickinson8d238292009-08-02 10:16:33 +0000388- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +0000389decimal digits in input, as recommended by the standard. Previously
390it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +0000391
R. David Murraya44c6b32009-07-29 15:40:30 +0000392- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +0000393unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
394descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +0000395
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000396- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +0000397working through proxy. Original patch by Christopher Li, changes made by
398Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000399
Brett Cannon2e3155e2009-07-20 03:22:43 +0000400- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +0000401the documentation said it did even though the code in PyLoader relied on the
402abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +0000403
Mark Dickinson8d156432009-07-18 14:43:10 +0000404- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +0000405know how to handle a comparison without loss of precision. Also add
406correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +0000407
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000408- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +0000409
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000410- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +0000411reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000412
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000413- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +0000414syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000415
Georg Brandlae83d6e2009-08-13 09:04:31 +0000416- Issue #3392: The subprocess communicate() method no longer fails in select()
417 when file descriptors are large; communicate() now uses poll() when possible.
418
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000419- Issue #6369: Fix an RLE decompression bug in the binhex module.
420
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000421- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
422
Georg Brandlae83d6e2009-08-13 09:04:31 +0000423- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
424 sys.path.
425
426Extension Modules
427-----------------
428
Brett Cannon0c811072009-08-13 19:59:04 +0000429- Fix a segfault in expat.
430
Georg Brandlae83d6e2009-08-13 09:04:31 +0000431- Issue #4509: array.array objects are no longer modified after an operation
432 failing due to the resize restriction in-place when the object has exported
433 buffers.
434
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000435Build
436-----
437
Benjamin Petersona09e8702010-01-01 16:29:51 +0000438- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
439
Benjamin Petersonf9a6dab2009-12-30 03:06:54 +0000440- Issue #7589: Only build the nis module when the correct header files are
441 found.
442
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000443- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000444directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000445
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000446- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000447extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000448
Brett Cannon10e35b32009-07-20 00:19:49 +0000449Test
450----
451
452- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000453testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000454
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000455
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000456What's New in Python 3.1?
457=========================
458
459*Release date: 27-June-2009*
460
461Core and Builtins
462-----------------
463
Mark Dickinsonad195562009-06-24 19:01:32 +0000464- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000465large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000466
Raymond Hettinger159eac92009-06-23 20:38:54 +0000467- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000468because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000469
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000470Library
471-------
472
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000473- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000474argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000475
Facundo Batista10706e22009-06-19 20:34:30 +0000476- Issue #6274: Fixed possible file descriptors leak in subprocess.py
477
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000478- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000479io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000480
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000481- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000482(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000483
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000484- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000485store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000486
Matthias Kloseab2b7552009-06-22 13:05:52 +0000487Extension Modules
488-----------------
489
490- Issue #5590: Remove unused global variable in pyexpat extension.
491
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000492
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000493What's New in Python 3.1 Release Candidate 2?
494=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000495
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000496*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000497
498Core and Builtins
499-----------------
500
Raymond Hettinger94f55832009-06-12 18:40:16 +0000501- Fixed SystemError triggered by "range([], 1, -1)".
502
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000503- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000504(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000505
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000506- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000507possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000508
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000509- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000510 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000511
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000512Library
513-------
514
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000515- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000516expression string pattern was trying to match against a bytes returned by
517Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000518
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000519- Issue #6258: Support AMD64 in bdist_msi.
520
R. David Murray58641de2009-06-12 15:33:19 +0000521- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000522binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000523
Vinay Sajipaffbd872009-06-11 10:11:47 +0000524- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000525TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000526
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000527- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000528errors property. Additionally, the errors and encoding properties of StringIO
529are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000530
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000531- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000532or dumping pickles with a 2.x-compatible protocol, in order to make data
533sharing and migration easier. This behaviour can be disabled using the
534new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000535
Raymond Hettinger40925d22009-06-04 18:32:39 +0000536- Removed the ipaddr module.
537
Georg Brandlb54d8012009-06-04 09:11:51 +0000538- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000539base64.{encode,decode}bytes which reflects what type they accept and return.
540The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000541
Georg Brandl317185a2009-06-04 09:00:56 +0000542- Issue #5767: Remove sgmlop support from xmlrpc.client.
543
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000544- Issue #6150: Fix test_unicode on wide-unicode builds.
545
Antoine Pitrouc06de472009-05-30 21:04:26 +0000546- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000547parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000548
Martin v. Löwis79b13872009-06-01 04:13:14 +0000549Windows
550-------
551
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000552- Issue #6221: Delete test registry key before running the test.
553
Martin v. Löwis79b13872009-06-01 04:13:14 +0000554- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
555
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000556C-API
557-----
558
559- Issue #5735: Python compiled with --with-pydebug should throw an
560 ImportError when trying to import modules compiled without
561 --with-pydebug, and vice-versa.
562
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000563
Brett Cannonc6d936e2009-06-07 20:09:53 +0000564Build
565-----
566
567- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
568 added LIBS to OS X framework builds.
569
Ronald Oussoren99aab652009-06-08 21:22:57 +0000570- Issue #5809: Specifying both --enable-framework and --enable-shared is
571 an error. Configure now explicity tells you about this.
572
573
Brett Cannonc6d936e2009-06-07 20:09:53 +0000574
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000575What's New in Python 3.1 release candidate 1?
576=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000577
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000578*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000579
580Core and Builtins
581-----------------
582
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000583- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
584 of the command line.
585
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000586- Issue #6012: Add cleanup support to O& argument parsing.
587
Eric Smith41669ca2009-05-23 14:23:22 +0000588- Issue #6089: Fixed str.format with certain invalid field specifiers
589 that would raise SystemError.
590
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000591- Issue #5982: staticmethod and classmethod now expose the wrapped
592 function with __func__.
593
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000594- Added support for multiple context managers in the same with-statement.
595 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000596
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000597- Issue #5829: complex("1e500") no longer raises OverflowError. This
598 makes it consistent with float("1e500") and interpretation of real
599 and imaginary literals.
600
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000601- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
602
R. David Murraydd226ea2009-05-13 12:27:21 +0000603- Issue #5994: the marshal module now has docstrings.
604
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000605- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
606 (1) inf and nan strings with trailing whitespace were incorrectly
607 rejected; (2) parsing of strings representing infinities and nans
608 was locale aware; and (3) the interpretation of fromhex('-nan')
609 didn't match that of float('-nan').
610
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000611Library
612-------
613
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000614- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
615
R. David Murrayfb123912009-05-28 18:19:00 +0000616- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
617
R. David Murray1f1b9d32009-05-27 20:56:59 +0000618- Issue #6121: pydoc now ignores leading and trailing spaces in the
619 argument to the 'help' function.
620
Georg Brandlfaf41492009-05-26 18:31:11 +0000621- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
622 arguments for strings with a space in them.
623
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000624- collections.namedtuple() was not working with the following field
625 names: cls, self, tuple, itemgetter, and property.
626
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000627- In unittest, using a skipping decorator on a class is now equivalent to
628 skipping every test on the class. The ClassTestSuite class has been removed.
629
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000630- Issue #6050: Don't fail extracting a directory from a zipfile if
631 the directory already exists.
632
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000633- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
634 than an int, which makes some operations possible under 64-bit Linux (e.g.
635 DN_MULTISHOT with F_NOTIFY).
636
Antoine Pitrou716c4442009-05-23 19:04:03 +0000637- Issue #5761: Add the name of the underlying file to the repr() of various
638 IO objects.
639
R. David Murraycaa27b72009-05-23 18:49:56 +0000640- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
641 by Musashi Tamura, tests by Marcin Bachry.
642
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000643- Issue #1983: Fix functions taking or returning a process identifier to use
644 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
645 a process identifier type wider than the standard C integer type.
646
R. David Murray87e20742009-05-23 01:30:26 +0000647- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
648 Patch by Farhan Ahmad, test by Marcin Bachry.
649
Antoine Pitrou6e610062009-05-15 17:04:50 +0000650- Issue #2116: Weak references and weak dictionaries now support copy()ing and
651 deepcopy()ing.
652
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000653- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
654
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000655- Issue #5918: Fix a crash in the parser module.
656
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000657- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
658
Antoine Pitroue4501852009-05-14 18:55:55 +0000659- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
660 library. This means, for example, that opening an UTF-16 text file in
661 append mode doesn't add a BOM at the end of the file if the file isn't
662 empty.
663
R. David Murray74b89242009-05-13 17:33:03 +0000664- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
665 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
666 corrects a pydoc regression.
667
R. David Murray99352742009-05-07 18:24:38 +0000668- Issue 5955: aifc's close method did not close the file it wrapped,
669 now it does. This also means getfp method now returns the real fp.
670
Benjamin Peterson932073a2009-05-23 16:14:33 +0000671Installation
672------------
673
674- Issue #6047: fullinstall has been removed because Python 3's executable will
675 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000676
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000677- Lib/smtpd.py is no longer installed as a script.
678
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000679Extension Modules
680-----------------
681
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000682- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000683
Martin v. Löwise23c8682009-05-29 16:01:34 +0000684- Issue #4873: Fix resource leaks in error cases of pwd and grp.
685
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000686- Issue #6093: Fix off-by-one error in locale.strxfrm.
687
Benjamin Peterson744af442009-05-23 18:51:49 +0000688- The _functools and _locale modules are now built into the libpython shared
689 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000690
Antoine Pitrou20327222009-05-24 20:39:11 +0000691Build
692-----
693
694- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
695 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
696 Clinton Roy.
697
Brett Cannon1262e7c2009-05-11 01:47:11 +0000698Tests
699-----
700
701- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
702 tests on darwin even when the OS was installed on a case-sensitive
703 filesystem. Also fixed tests that should not be run when
704 sys.dont_write_bytecode is true.
705
706
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000707What's New in Python 3.1 beta 1?
708================================
709
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000710*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000711
712Core and Builtins
713-----------------
714
Mark Dickinson865e01a2009-05-07 16:37:01 +0000715- Issue #5914: Add new C API function PyOS_string_to_double, and
716 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
717
Eric Smith741191f2009-05-06 13:08:15 +0000718- Issue #3382: float.__format__, complex.__format__, and %-formatting
719 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
720 affects nan -> NAN and inf -> INF.
721
Mark Hammond5a607a32009-05-06 08:04:54 +0000722- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
723 in all operations, including splitdrive, split, etc. splitunc() now issues
724 a PendingDeprecation warning.
725
Eric Smith63376222009-05-05 14:04:18 +0000726- Issue #5920: For float.__format__, change the behavior with the
727 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
728 to be like 'g' but with at least one decimal point and with a
729 default precision of 12. Previously, the behavior the same but with
730 a default precision of 6. This more closely matches str(), and
731 reduces surprises when adding alignment flags to the empty
732 presentation type. This also affects the new complex.__format__ in
733 the same way.
734
Martin v. Löwis011e8422009-05-05 04:43:17 +0000735- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
736
R. David Murrayb18500d2009-05-04 22:59:07 +0000737- Issue #5890: in subclasses of 'property' the __doc__ attribute was
738 shadowed by classtype's, even if it was None. property now
739 inserts the __doc__ into the subclass instance __dict__.
740
Antoine Pitrou244651a2009-05-04 18:56:13 +0000741- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
742 sequences. Patch by Nick Barnes and Victor Stinner.
743
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000744- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000745
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000746- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
747 received a new method, detach(). detach() disconnects the underlying stream
748 from the buffer or text IO and returns it.
749
Mark Dickinson33841c32009-05-01 15:37:04 +0000750- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
751 floats with absolute value over 1e50. Also remove length
752 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
753 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000754
Eric Smith741191f2009-05-06 13:08:15 +0000755- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000756 format(complex(1, 2./3), '.5') now produces a sensible result.
757
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000758- Issue #5864: Fix empty format code formatting for floats so that it
759 never gives more than the requested number of significant digits.
760
Eric Smith6dc46f52009-04-27 20:39:49 +0000761- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
762 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
763
Eric Smithcc32a112009-04-26 21:35:14 +0000764- Issue #5835: Deprecate PyOS_ascii_formatd.
765
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000766- Issue #4971: Fix titlecase for characters that are their own
767 titlecase, but not their own uppercase.
768
Benjamin Peterson193152c2009-04-25 01:08:45 +0000769- Issue #5283: Setting __class__ in __del__ caused a segfault.
770
Mark Dickinsonad476da2009-04-23 19:14:16 +0000771- Issue #5816: complex(repr(z)) now recovers z exactly, even when
772 z involves nans, infs or negative zeros.
773
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000774- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000775
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000776- Issue #1869 (and many duplicates): make round(x, n) correctly
777 rounded for a float x, by using the decimal <-> binary conversions
778 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
779 consistently agrees with format(x, '.2f').
780
Benjamin Petersonae937c02009-04-18 20:54:08 +0000781- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
782 some builtin types.
783
Eric Smith0923d1d2009-04-16 20:16:10 +0000784- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
785
Eric Smith35e84722009-04-16 20:21:28 +0000786- Issue #5515: str.format() type 'n' combined with commas and leading
787 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000788
789- Implement PEP 378, Format Specifier for Thousands Separator, for
790 floats.
791
Mark Dickinson3370cce2009-04-17 22:40:53 +0000792- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000793 1e11, not 1e12. This avoids printing 13 significant digits in
794 situations where only 12 of them are correct. Example problem
795 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
796 long time.)
797
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000798- Issue #1580: On most platforms, use a 'short' float repr: for a
799 finite float x, repr(x) now outputs a string based on the shortest
800 sequence of decimal digits that rounds to x. Previous behaviour was
801 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000802 Another minor difference is that the new repr switches to
803 exponential notation at 1e16 instead of the previous 1e17; this
804 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000805
806 There's a new sys attribute sys.float_repr_style, which takes
807 the value 'short' to indicate that we're using short float repr,
808 and 'legacy' if the short float repr isn't available for one
809 reason or another.
810
811 The float repr change involves incorporating David Gay's 'perfect
812 rounding' code into the Python core (it's in Python/dtoa.c). As a
813 secondary consequence, all string-to-float and float-to-string
814 conversions (including all float formatting operations) will be
815 correctly rounded on these platforms.
816
817 See issue 1580 discussions for details of platforms for which
818 this change does not apply.
819
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000820- Issue #5759: float() didn't call __float__ on str subclasses.
821
Georg Brandlabc38772009-04-12 15:51:51 +0000822- The string.maketrans() function is deprecated; there is a new static method
823 maketrans() on the bytes and bytearray classes. This removes confusion about
824 the types string.maketrans() is supposed to work with, and mirrors the
825 methods available on the str class.
826
R. David Murraydc6da8a2009-04-09 22:16:43 +0000827- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
828 its clarity and its speed.
829
Matthias Klose091c7b12009-04-07 13:24:27 +0000830- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
831 to avoid compiler warnings.
832
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000833- Issue #3739: The unicode-internal encoder now reports the number of characters
834 consumed like any other encoder (instead of the number of bytes).
835
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000836Installation
837------------
838
839- Issue #5756: Install idle and pydoc with a 3 suffix.
840
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000841Library
842-------
843
Martin v. Löwis403117a2009-05-24 19:19:17 +0000844- Issue #5311: bdist_msi can now build packages that do not depend on a
845 specific Python version.
846
Raymond Hettingereb816952009-05-29 01:22:18 +0000847- Issue #5150: IDLE's format menu now has an option to strip trailing
848 whitespace.
849
Vinay Sajipaffbd872009-06-11 10:11:47 +0000850- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000851 the right type checkings anymore.
852
Thomas Heller00cfc372009-05-05 19:04:40 +0000853- Issue #4875: On win32, ctypes.util.find_library does no longer
854 return directories.
855
Georg Brandl243ad662009-05-05 09:00:19 +0000856- Issue #5142: Add the ability to skip modules while stepping to pdb.
857
Georg Brandl991f9202009-05-05 08:31:54 +0000858- Issue #1309567: Fix linecache behavior of stripping subdirectories when
859 looking for files given by a relative filename.
860
Georg Brandleaa84ef2009-05-05 08:14:33 +0000861- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
862 turtle demos in Demo/turtle.
863
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000864- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
865 extracting a file to the root directory.
866
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000867- Issue #5913: os.listdir() should fail for empty path on windows.
868
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000869- Issue #5084: unpickling now interns the attribute names of pickled objects,
870 saving memory and avoiding growth in size of subsequent pickles. Proposal
871 and original patch by Jake McGuire.
872
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000873- The json module now works exclusively with str and not bytes.
874
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000875- Issue #3959: The ipaddr module has been added to the standard library.
876 Contributed by Google.
877
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000878- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
879 error when a named pipe is encountered, rather than blocking infinitely.
880
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000881- Issue #5857: tokenize.tokenize() now returns named tuples.
882
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000883- Issue #4305: ctypes should now build again on mipsel-linux-gnu
884
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000885- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
886 string is already in normalized form, by performing a quick check beforehand.
887 Original patch by Rauli Ruohonen.
888
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000889- Issue #5853: calling a function of the mimetypes module from several threads
890 at once could hit the recursion limit if the mimetypes database hadn't been
891 initialized before.
892
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000893- Issue #5854: Updated __all__ to include some missing names and remove some
894 names which should not be exported.
895
Thomas Heller34596a92009-04-24 20:50:00 +0000896- Issue #3102: All global symbols that the _ctypes extension defines
897 are now prefixed with 'Py' or '_ctypes'.
898
899- Issue #5041: ctypes does now allow pickling wide character.
900
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000901- Issue #5812: For the two-argument form of the Fraction constructor,
902 Fraction(m, n), m and n are permitted to be arbitrary Rational
903 instances.
904
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000905- Issue #5812: Fraction('1e6') is valid: more generally, any string
906 that's valid for float() is now valid for Fraction(), with the
907 exception of strings representing NaNs and infinities.
908
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000909- Issue #5734: BufferedRWPair was poorly tested and had several glaring
910 bugs. Patch by Brian Quinlan.
911
R. David Murray9e94ddf2009-04-13 17:06:33 +0000912- Issue #1161031: fix readwrite select flag handling: POLLPRI now
913 results in a handle_expt_event call, not handle_read_event, and POLLERR
914 and POLLNVAL now call handle_close, not handle_expt_event. Also,
915 dispatcher now has an 'ignore_log_types' attribute for suppressing
916 log messages, which is set to 'warning' by default.
917
Matthias Klosea3d29e82009-04-07 13:13:10 +0000918- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
919 new arguments introduced in 2.5.
920
Walter Dörwald1b08b302009-04-25 14:13:56 +0000921- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
922 makeunicodedata.py and regenerated the Unicode database (This fixes
923 u'\u1d79'.lower() == '\x00').
924
Matthias Klose535336f2009-04-07 13:49:45 +0000925Extension Modules
926-----------------
927
Benjamin Petersone04b6272009-05-04 22:25:21 +0000928- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
929 pwd.
930
Mark Dickinsonea835e72009-04-19 20:40:33 +0000931- Issue #5463: In struct module, remove deprecated float coercion
932 for integer type codes: struct.pack('L', 0.3) should now raise
933 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
934 The version number has been bumped to 0.3.
935
Matthias Klose535336f2009-04-07 13:49:45 +0000936- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
937 using Berkley-DB.
938
Nick Coghlan47384702009-04-22 16:13:36 +0000939Tests
940-----
941
942- Issue #5354: New test support function import_fresh_module() makes
943 it easy to import both normal and optimised versions of modules.
944 test_heapq and test_warnings have been adjusted to use it, tests for
945 other modules with both C and Python implementations in the stdlib
946 can be adjusted to use it over time.
947
Walter Dörwald4ba80132009-04-25 12:48:43 +0000948- Issue #5837: Certain sequences of calls to set() and unset() for
949 support.EnvironmentVarGuard objects restored the environment variables
950 incorrectly on __exit__.
951
Benjamin Petersonb173f782009-05-05 22:31:58 +0000952C-API
953-----
954
955- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
956
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000957
Benjamin Petersond1735892009-03-07 18:46:21 +0000958What's New in Python 3.1 alpha 2?
959=================================
960
Benjamin Peterson88f14352009-04-04 21:06:52 +0000961*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000962
963Core and Builtins
964-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000965
Eric Smith1e1d7d22009-04-03 22:25:33 +0000966- Implement PEP 378, Format Specifier for Thousands Separator, for
967 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000968
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000969- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
970
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000971- Issue #5499: The 'c' code for argument parsing functions now only accepts a
972 byte, and the 'C' code only accepts a unicode character.
973
Georg Brandl406b3d82009-04-11 21:24:37 +0000974- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
975 when hitting the recursion limit under certain circumstances.
976
Brett Cannon0759dd62009-04-01 18:13:07 +0000977- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
978
Georg Brandlab6f2f62009-03-31 04:16:10 +0000979- Fix a segfault when running test_exceptions with coverage, caused by
980 insufficient checks in accessors of Exception.__context__.
981
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000982- Issue #5604: non-ASCII characters in module name passed to
983 imp.find_module() were converted to UTF-8 while the path is
984 converted to the default filesystem encoding, causing nonsense.
985
Benjamin Peterson09832742009-03-26 17:15:46 +0000986- Issue #5126: str.isprintable() returned False for space characters.
987
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000988- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
989 the end sys.path, for compatibility with the system install of Python.
990
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000991- Issue #4688: Add a heuristic so that tuples and dicts containing only
992 untrackable objects are not tracked by the garbage collector. This can
993 reduce the size of collections and therefore the garbage collection overhead
994 on long-running programs, depending on their particular use of datatypes.
995
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000996- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
997 improve its performance. Long divisions and remainder operations
998 are now between 50% and 150% faster.
999
Mark Dickinsonbd792642009-03-18 20:06:12 +00001000- Issue #4258: Make it possible to use base 2**30 instead of base
1001 2**15 for the internal representation of integers, for performance
1002 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1003 --enable-big-digits option to configure, which overrides the
1004 default. Add sys.int_info structseq to provide information about
1005 the internal format.
1006
Mark Dickinson081dfee2009-03-18 14:47:41 +00001007- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1008 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1009 and sizeof(Py_UNICODE) == 2.
1010
Eric Smith8ec90442009-03-14 12:29:34 +00001011- Issue #5237: Allow auto-numbered fields in str.format(). For
1012 example: '{} {}'.format(1, 2) == '1 2'.
1013
Antoine Pitrou652e7072009-03-13 19:25:20 +00001014- Issue #5392: when a very low recursion limit was set, the interpreter would
1015 abort with a fatal error after the recursion limit was hit twice.
1016
Matthias Klose042f1332009-04-04 14:32:42 +00001017- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1018 short file names.
1019
Benjamin Petersond1735892009-03-07 18:46:21 +00001020Library
1021-------
1022
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001023- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001024 mailbox.MH.get_message().
1025
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001026- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1027 error substitutions from non-strict codec error callbacks in
1028 incrementalencoder and StreamWriter.
1029
Georg Brandl33c28812009-04-01 23:07:29 +00001030- Issue #5656: Fix the coverage reporting when running the test suite with
1031 the -T argument.
1032
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001033- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1034
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001035- Issue #5624: Fix the _winreg module name still used in several modules.
1036
Benjamin Petersona1b49012009-03-31 23:11:32 +00001037- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1038
Jesse Nollera9314042009-03-31 22:36:44 +00001039- Issue #5619: Multiprocessing children disobey the debug flag and causes
1040 popups on windows buildbots. Patch applied to work around this issue.
1041
Jesse Noller32d68c22009-03-31 18:48:42 +00001042- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1043
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001044- Issue #5387: Fixed mmap.move crash by integer overflow.
1045
Jesse Nollerf8d00852009-03-31 03:25:07 +00001046- Issue #5261: Patch multiprocessing's semaphore.c to support context
1047 manager use: "with multiprocessing.Lock()" works now.
1048
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001049- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1050 bytes already but the failure was non-obvious.
1051
Jesse Noller7af4ef82009-03-30 16:47:15 +00001052- Issue #5177: Multiprocessing's SocketListener class now uses
1053 socket.SO_REUSEADDR on all connections so that the user no longer needs
1054 to wait 120 seconds for the socket to expire.
1055
Benjamin Peterson48e24782009-03-29 13:02:52 +00001056- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1057
Antoine Pitrou66994e12009-03-29 00:45:26 +00001058- Issue #1174606: Calling read() without arguments of an unbounded file
1059 (typically /dev/zero under Unix) could crash the interpreter.
1060
Benjamin Peterson59406a92009-03-26 17:10:29 +00001061- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1062 io.BufferedRandom have been deprecated for removal in Python 3.2.
1063
Lars Gustäbel42e00912009-03-22 20:34:29 +00001064- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1065 forever on incomplete input. That caused tarfile.open() to hang when used
1066 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1067 partial bzip2 compressed data.
1068
Mark Dickinson79f52032009-03-17 23:12:51 +00001069- Issue #2110: Add support for thousands separator and 'n' type
1070 specifier to Decimal.__format__
1071
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001072- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1073 '>' alignment characters.
1074
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001075- The error detection code in FileIO.close() could fail to reflect the `errno`
1076 value, and report it as -1 instead.
1077
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001078- Issue #5016: FileIO.seekable() could return False if the file position
1079 was negative when truncated to a C int. Patch by Victor Stinner.
1080
Mark Dickinsonae681df2009-03-21 10:26:31 +00001081Extension Modules
1082-----------------
1083
Benjamin Petersone099b372009-04-04 17:09:35 +00001084- Issue #5391: mmap now deals exclusively with bytes.
1085
Mark Dickinsonae681df2009-03-21 10:26:31 +00001086- Issue #5463: In struct module, remove deprecated overflow wrapping
1087 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001088 struct.error instead of returning b'\xff\xff\xff\xff'. The
1089 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1090 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001091
Benjamin Petersond1735892009-03-07 18:46:21 +00001092
Benjamin Petersona58a6262009-03-07 16:34:40 +00001093What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001094================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001095
Benjamin Petersona58a6262009-03-07 16:34:40 +00001096*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001097
1098Core and Builtins
1099-----------------
1100
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001101- The io module has been reimplemented in C for speed.
1102
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001103- Give dict views an informative __repr__.
1104
Eric Smith5e5c0db2009-02-20 14:25:03 +00001105- Issue #5247: Improve error message when unknown format codes are
1106 used when using str.format() with str, int, and float arguments.
1107
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001108- Issue #5249: time.strftime returned malformed string when format string
1109 contained non ascii character on windows.
1110
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001111- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1112 source has already been decoded into str.
1113
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001114- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1115 rotating the object pointer by 4 bits to the right.
1116
Mark Dickinson87ec0852009-02-09 17:15:59 +00001117- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1118 it now forces its argument to double before testing for infinity.
1119
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001120- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1121 returns a non-number type.
1122
Benjamin Peterson87618552009-02-08 15:00:52 +00001123- Issue #5182: Removed memoryview.__str__.
1124
Mark Dickinsonc008a172009-02-01 13:59:22 +00001125- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1126 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001127 the type definition cmpfunc. The tp_compare slot has been renamed
1128 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001129
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001130- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001131 were suppressing all exceptions. These include list() and bytearray().
1132
Mark Dickinson1124e712009-01-28 21:25:58 +00001133- Issue #4707: round(x, n) now returns an integer if x is an integer.
1134 Previously it returned a float.
1135
Antoine Pitroub52ec782009-01-25 16:34:23 +00001136- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1137 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1138 evaluation loop is compiled with a new dispatch mechanism which gives
1139 speedups of up to 20%, depending on the system, on various benchmarks.
1140
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001141- Issue #4874: Most builtin decoders now reject unicode input.
1142
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001143- Issue #4842: Don't allow trailing 'L' when constructing an integer
1144 from a string.
1145
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001146- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1147
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001148- Issue #4838: When a module is deallocated, free the memory backing the
1149 optional module state data.
1150
Mark Dickinson8055afd2009-01-17 10:04:45 +00001151- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1152 type to (void *).
1153
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001154- Issue #4935: The overflow checking code in the expandtabs() method common
1155 to str, bytes and bytearray could be optimized away by the compiler, letting
1156 the interpreter segfault instead of raising an error.
1157
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001158- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1159 __next__ method.
1160
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001161- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1162 function no longer attempt to call the __long__ slot to convert an object
1163 to an integer. Only the __int__ and __trunc__ slots are examined.
1164
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001165- Issue #4893: Use NT threading on CE.
1166
Martin v. Löwisec59d042009-01-12 07:59:10 +00001167- Issue #4915: Port sysmodule to Windows CE.
1168
Antoine Pitrouab868312009-01-10 15:40:25 +00001169- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1170 common cases are optimized thanks to a dedicated fast path and a moderate
1171 amount of loop unrolling.
1172
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001173- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1174 collecting the oldest generation) so that allocating lots of objects without
1175 destroying them does not show quadratic performance. Based on a proposal by
1176 Martin von Löwis at
1177 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1178
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001179- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001180 having been closed (for instance, a read() call could return some
1181 previously buffered data). Patch by Dmitry Vasiliev.
1182
Antoine Pitrou05608432009-01-09 18:53:14 +00001183- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1184 flag to work properly. Furthermore, when specifying -u, the text stdout
1185 and stderr streams have line-by-line buffering enabled (the default being
1186 to buffer arbitrary chunks of data).
1187
Raymond Hettinger35631532009-01-09 03:58:09 +00001188- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1189 instead of ints (reducing its size from 4 to 8 times thereby reducing
1190 Python's overall memory).
1191
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001192- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1193 an existing .py counterpart, override the co_filename attributes of all
1194 code objects if the original filename is obsolete (which can happen if the
1195 file has been renamed, moved, or if it is accessed through different paths).
1196 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1197
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001198- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1199 one byte. Also fixes the meaning of len() so that it returns the number of
1200 items, rather than the size in bytes.
1201
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001202- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1203
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001204- Issue #4747: When the terminal does not use utf-8, executing a script with
1205 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1206
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001207- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001208 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001209
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001210- Issue #3680: Reference cycles created through a dict, set or deque iterator
1211 did not get collected.
1212
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001213- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1214 where the tp_hash and tp_dict slots are both NULL.
1215
Georg Brandlccc47b62008-12-28 11:44:14 +00001216- Issue #4759: None is now allowed as the first argument of
1217 bytearray.translate(). It was always allowed for bytes.translate().
1218
Skip Montanaro80072cb2008-12-23 03:51:14 +00001219- Added test case to ensure attempts to read from a file opened for writing
1220 fail.
1221
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001222- Issue #3106: Speedup some comparisons (str/str and int/int).
1223
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001224- Issue #2183: Simplify and optimize bytecode for list, dict and set
1225 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1226
Antoine Pitrou621601a2008-12-17 23:18:19 +00001227- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1228 print elapsed times, not only when some objects are uncollectable /
1229 unreachable. Original patch by Neil Schemenauer.
1230
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001231- Issue #3439: Add a bit_length method to int.
1232
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001233- Issue #2173: When getting device encoding, check that return value of
1234 nl_langinfo is not the empty string. This was causing silent build
1235 failures on OS X.
1236
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001237- Issue #4597: Fixed several opcodes that weren't always propagating
1238 exceptions.
1239
1240- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001241 context manager returns a value that cannot be converted to a bool.
1242
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001243- Issue #4445: Replace "sizeof(PyBytesObject)" with
1244 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1245 bytes instances. On a typical machine this saves 3 bytes of memory
1246 (on average) per allocation of a bytes instance.
1247
Christian Heimesa872de52008-12-05 08:26:55 +00001248- Issue #4533: File read operation was dreadfully slow due to a slowly
1249 growing read buffer. Fixed by using the same growth rate algorithm as
1250 Python 2.x.
1251
Antoine Pitrou5504e892008-12-06 21:27:53 +00001252- Issue #4509: Various issues surrounding resize of bytearray objects to
1253 which there are buffer exports (e.g. memoryview instances).
1254
Georg Brandlf9734072008-12-07 15:30:06 +00001255- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1256 method on file objects with closefd=False. The file descriptor is still
1257 kept open but the file object behaves like a closed file. The ``FileIO``
1258 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001259
Antoine Pitroubc420402008-12-07 20:14:49 +00001260- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1261 larger than 1.
1262
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001263- Issue #4748: Lambda generators no longer return a value.
1264
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001265- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1266
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001267- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1268 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1269 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1270 of using the replace error handler in PyUnicode_DecodeUTF8().
1271
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001272Library
1273-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001274
Tarek Ziadé53fdb182009-10-24 13:42:10 +00001275- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1276 raised. Initial patch by Ezio Melotti.
1277
Tarek Ziadé3cc12f62009-07-22 09:03:01 +00001278- Issue #6545: Removed assert statements in distutils.Extension, so the
1279 behavior is similar when used with -O.
1280
Tarek Ziadé24448fa2009-07-11 11:01:14 +00001281- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
1282 "PyInit" prefix, rather than "init".
1283
Georg Brandld80344f2009-08-13 12:26:19 +00001284- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1285
Tarek Ziadé7e646002009-07-10 09:16:07 +00001286- Issue #6455: Fixed test_build_ext under win32.
1287
Tarek Ziadé35c88a82009-07-04 02:05:51 +00001288- Issue #6413: Fixed the log level in distutils.dist for announce.
1289
Tarek Ziadé385029f2009-07-03 08:37:27 +00001290- Issue #6403: Fixed package path usage in build_ext.
1291
Tarek Ziadé2c3de402009-06-29 16:46:14 +00001292- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1293 extension in a subdirectory if the extension name had dots.
1294
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001295- Issue #6287: Added the license field in Distutils documentation.
1296
Tarek Ziadéff543362009-06-11 09:25:41 +00001297- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1298
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001299- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1300 in Makefiles. This prevents compile errors when using syntax like:
1301 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1302
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001303- Issue #6131: test_modulefinder leaked when run after test_distutils.
1304 Patch by Hirokazu Yamamoto.
1305
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001306- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1307
Vinay Sajipaffbd872009-06-11 10:11:47 +00001308- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001309 and tests on pywin32 by Tim Golden.
1310
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001311- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1312
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001313- Issue #6046: Fixed the library extension when distutils build_ext is used
1314 inplace. Initial patch by Roumen Petrov.
1315
Vinay Sajipaffbd872009-06-11 10:11:47 +00001316- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001317 subcommand.
1318
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001319- Issue #6022: a test file was created in the current working directory by
1320 test_get_outputs in Distutils.
1321
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001322- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1323 inplace option. Initial patch by kxroberto.
1324
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001325- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1326 for old-style extensions.
1327
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001328- Issue #5976: Fixed Distutils test_check_environ.
1329
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001330- Issue #5941: Distutils build_clib command was not working anymore because
1331 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1332 Makefile besides AR and make Distutils use it. Original patch by David
1333 Cournapeau.
1334
R. David Murrayb507d2e2009-04-29 15:34:32 +00001335- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1336
Vinay Sajipaffbd872009-06-11 10:11:47 +00001337- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001338 anymore.
1339
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001340- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001341 sysconfig.get_config_vars.
1342
Tarek Ziadé23336082009-04-25 12:39:56 +00001343- Issue #4951: Fixed failure in test_httpservers.
1344
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001345- Issue #5795: Fixed test_distutils failure on Debian ppc.
1346
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001347- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1348
Georg Brandl1f9fa312009-04-27 16:42:58 +00001349- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1350 a value in SafeConfigParser.
1351
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001352- Issue #5732: added a new command in Distutils: check.
1353
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001354- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001355 platforms. Initial patch by Paul Moore.
1356
Tarek Ziadéf6370502009-04-05 22:57:21 +00001357- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1358 Initial fix by Steven Bethard.
1359
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001360- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1361 Initial fix by Wayne Davison.
1362
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001363- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001364
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001365- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001366
Brett Cannonf47e84c2009-04-01 16:06:01 +00001367- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1368 instead of performing them in functions. Helps prevent import deadlocking in
1369 threads.
1370
R. David Murraye59482e2009-04-01 03:42:00 +00001371- Issue #2522: locale.format now checks its first argument to ensure it has
1372 been passed only one pattern, avoiding mysterious errors where it appeared
1373 that it was failing to do localization.
1374
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001375- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1376 Brandl.
1377
Antoine Pitrou350370c2009-03-14 00:13:13 +00001378- Issue #1222: locale.format() bug when the thousands separator is a space
1379 character.
1380
Tarek Ziadé516db942009-03-11 12:52:00 +00001381- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1382 Tim Golden.
1383
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001384- collections.deque() objects now have a read-only attribute called maxlen.
1385
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001386- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1387 it is has been populated and properly configured in order to prevent
1388 window flashing.
1389
Guilherme Polo56f5be52009-03-07 01:54:57 +00001390- Issue #4792: Prevent a segfault in _tkinter by using the
1391 guaranteed to be safe interp argument given to the PythonCmd in place of
1392 the Tcl interpreter taken from a PythonCmd_ClientData.
1393
1394- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1395
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001396- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1397 Original patch by Akira Kitada.
1398
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001399- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1400
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001401- Issue #5385: Fixed mmap crash after resize failure on windows.
1402
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001403- Issue #5179: Fixed subprocess handle leak on failure on windows.
1404
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001405- PEP 372: Added collections.OrderedDict().
1406
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001407- The _asdict() for method for namedtuples now returns an OrderedDict().
1408
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001409- configparser now defaults to using an ordered dictionary.
1410
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001411- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1412 import guess_extension`` was used.
1413
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001414- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1415 with same tagname but larger size than first map. (Windows)
1416
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001417- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1418 overrun.
1419
Tarek Ziadéf0721222009-02-28 10:16:43 +00001420- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1421 bdist_rpm command.
1422
1423- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1424
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001425- Issue #5052: make Distutils compatible with 2.3 again.
1426
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001427- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1428 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001429
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001430- Issue #5287: Add exception handling around findCaller() call to help out
1431 IronPython.
1432
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001433- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1434 The file was resized to wrong size.
1435
1436- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1437
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001438- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001439 from the package_data and the data_files metadata.
1440
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001441- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001442 support.TempdirManager, to avoid writing in the tests directory.
1443
Tarek Ziadé68c50952009-02-13 23:04:17 +00001444- Issue #4524: distutils build_script command failed with --with-suffix=3.
1445 Initial patch by Amaury Forgeot d'Arc.
1446
Tarek Ziadé811d6242009-02-13 22:26:15 +00001447- Issue #2461: added tests for distutils.util
1448
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001449- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1450 which inherited from numbers.py which did not have __slots__ defined. The
1451 numbers hierarchy now has its own __slots__ declarations.
1452
Antoine Pitroub353c122009-02-11 00:39:14 +00001453- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1454 encoding.
1455
Thomas Heller465c8022009-02-10 18:59:04 +00001456- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1457 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1458
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001459- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1460 under NT and OS2. Patch by Philip Jenvey.
1461
Brett Cannonbefb14f2009-02-10 02:10:16 +00001462- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1463 to be recreated. This avoids a timing hole thanks to the old reliance on the
1464 ctime of the files involved.
1465
Guilherme Polob681df42009-02-09 22:33:59 +00001466- Issue #5122: Synchronize tk load failure check to prevent a potential
1467 deadlock.
1468
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001469- Issue #1818: collections.namedtuple() now supports a keyword argument
1470 'rename' which lets invalid fieldnames be automatically converted to
1471 positional names in the form, _1, _2, ...
1472
Guilherme Poloae098992009-02-09 16:44:24 +00001473- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1474
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001475- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1476 public documented method ``ZipImporter.get_filename()``.
1477
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001478- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1479 the execution of packages by looking for and executing a ``__main__``
1480 submodule when a package name is supplied. Initial patch by Andi
1481 Vajda.
1482
Guilherme Polo491aee22009-02-06 23:16:11 +00001483- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1484 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1485 Tkapp_Call when calling from a thread different than the one that created
1486 the Tcl interpreter. Patch by Robert Hancock.
1487
Eric Smith0e5b5622009-02-06 01:32:42 +00001488- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1489 Ross Light.
1490
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001491- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001492 environment/Makefile. Patch by Douglas Greiman.
1493
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001494- Issue #1276768: The verbose option was not used in the code of
1495 distutils.file_util and distutils.dir_util.
1496
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001497- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001498 --enabled-shared activated. Initial patch by Dave Peterson.
1499
Guilherme Polo7f423952009-02-02 21:17:09 +00001500- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1501
Raymond Hettinger85602262009-02-03 04:19:10 +00001502- The shelve module now defaults to pickle protocol 3.
1503
Brett Cannone61426e2009-01-30 01:31:34 +00001504- Fix a bug in the trace module where a bytes object from co_lnotab had its
1505 items being passed through ord().
1506
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001507- Issue #2047: shutil.move() could believe that its destination path was
1508 inside its source path if it began with the same letters (e.g. "src" vs.
1509 "src.new").
1510
Guilherme Polo5f238482009-01-28 14:41:10 +00001511- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1512
Raymond Hettinger89e12962009-01-26 02:09:03 +00001513- Removed isSequenceType(), isMappingType, and isNumberType() from the
1514 operator module; use the abstract base classes instead. Also removed
1515 the repeat() function; use mul() instead.
1516
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001517- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001518 collections.namedtuple() relied on __name__ being defined.
1519
1520- Backport importlib from Python 3.1. Only the import_module() function has
1521 been backported to help facilitate transitions from 2.7 to 3.1.
1522
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001523- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1524 the tar file was overriden by the gztar one.
1525
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001526- Issue #4863: distutils.mwerkscompiler has been removed.
1527
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001528- Added a new itertools functions: combinations_with_replacement()
1529 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001530
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001531- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001532 allowed non-integer arguments.
1533
Jesse Noller41faa542009-01-25 03:45:53 +00001534- Fix and properly document the multiprocessing module's logging
1535 support, expose the internal levels and provide proper usage
1536 examples.
1537
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001538- Issue #1672332: fix unpickling of subnormal floats, which was
1539 producing a ValueError on some platforms.
1540
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001541- Issue #3881: Help Tcl to load even when started through the
1542 unreadable local symlink to "Program Files" on Vista.
1543
Martin v. Löwis59e47792009-01-24 14:10:07 +00001544- Issue #4710: Extract directories properly in the zipfile module;
1545 allow adding directories to a zipfile.
1546
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001547- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001548 --without-threads argument. When this occurs, _multiprocessing will
1549 be disabled, and not compiled.
1550
Antoine Pitrou08838b62009-01-21 00:55:13 +00001551- Issue #5008: When a file is opened in append mode with the new IO library,
1552 do an explicit seek to the end of file (so that e.g. tell() returns the
1553 file size rather than 0). This is consistent with the behaviour of the
1554 traditional 2.x file object.
1555
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001556- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1557 parameter was set.
1558
Mark Dickinson8dd05142009-01-20 20:43:58 +00001559- Issue #4842: Always append a trailing 'L' when pickling longs using
1560 pickle protocol 0. When reading, the 'L' is optional.
1561
Brett Cannonafccd632009-01-20 02:21:27 +00001562- Add the importlib package.
1563
Jesse Noller9a0fc972009-01-18 21:12:58 +00001564- Issue #4301: Patch the logging module to add processName support, remove
1565 _check_logger_class from multiprocessing.
1566
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001567- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001568 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001569
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001570- Issue #4959: inspect.formatargspec now works for keyword only arguments
1571 without defaults.
1572
Jesse Noller6214edd2009-01-19 16:23:53 +00001573- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1574 for *nix machines for negative handles and large int handles. Without this check
1575 it is possible to segfault the interpreter.
1576
Jesse Nollerb0516a62009-01-18 03:11:38 +00001577- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1578 in sharedctypes.py.
1579
1580- Issue #1225107: inspect.isclass() returned True for instances with a custom
1581 __getattr__.
1582
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001583- Issue #3826 and #4791: The socket module now closes the underlying socket
1584 appropriately when it is being used via socket.makefile() objects
1585 rather than delaying the close by waiting for garbage collection to do it.
1586
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001587- Issue #1696199: Add collections.Counter() for rapid and convenient
1588 counting.
1589
Antoine Pitrou308705e2009-01-10 16:22:51 +00001590- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1591
Thomas Heller5e4e4272009-01-08 09:34:20 +00001592- Issue #4867: Fixed a crash in ctypes when passing a string to a
1593 function without defining argtypes.
1594
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001595- Issue #4272: Add an optional argument to the GzipFile constructor to override
1596 the timestamp in the gzip stream. The default value remains the current time.
1597 The information can be used by e.g. gunzip when decompressing. Patch by
1598 Jacques Frechet.
1599
Mark Dickinson315a20a2009-01-04 21:34:18 +00001600- Restore Python 2.3 compatibility for decimal.py.
1601
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001602- Issue #3638: Remove functions from _tkinter module level that depend on
1603 TkappObject to work with multiple threads.
1604
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001605- Issue #4718: Adapt the wsgiref package so that it actually works with
1606 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001607 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1608
Raymond Hettinger771ed762009-01-03 19:20:32 +00001609- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1610 to the decimal module.
1611
Georg Brandl3a9b0622009-01-03 22:07:57 +00001612- Fractions.from_float() no longer loses precision for integers too big to
1613 cast as floats.
1614
Mark Dickinsonf9236412009-01-02 23:23:21 +00001615- Issue #4812: add missing underscore prefix to some internal-use-only
1616 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1617
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001618- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001619 did unnecessary work in the common case where no key function was specified.
1620
Georg Brandlb1441c72009-01-03 22:33:39 +00001621- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1622 the function is not a generator.
1623
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001624- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1625 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001626
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001627- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001628 function. Original patch by Thomas Heller.
1629
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001630- Issue #3767: Convert Tk object to string in tkColorChooser.
1631
Martin v. Löwise354d782008-12-29 16:03:04 +00001632- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1633
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001634- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1635 the code under test can be written inline if more practical.
1636
Georg Brandldb7b6b92009-01-01 15:53:14 +00001637- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1638 works as expected in the interactive environment.
1639
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001640- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1641 Gabriel Genellina.
1642
Antoine Pitrou180a3362008-12-14 16:36:46 +00001643- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1644 boundary.
1645
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001646- Issue #4223: inspect.getsource() will now correctly display source code
1647 for packages loaded via zipimport (or any other conformant PEP 302
1648 loader). Original patch by Alexander Belopolsky.
1649
1650- Issue #4201: pdb can now access and display source code loaded via
1651 zipimport (or any other conformant PEP 302 loader). Original patch by
1652 Alexander Belopolsky.
1653
1654- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1655 302 conformant loader) will now work correctly in most cases (they
1656 are still subject to the constraints that exist for all code running
1657 from inside a module loaded via a PEP 302 loader and attempting to
1658 perform IO operations based on __file__). Original patch by
1659 Alexander Belopolsky.
1660
1661- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1662 allows backporting to maintenance branches. Original patch by
1663 Alexander Belopolsky.
1664
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001665- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1666 a non-ASCII letter.
1667
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001668- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1669
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001670- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1671 codec cannot be found. This is for compatibility with the builtin behavior.
1672
Facundo Batista708d5812008-12-11 04:20:07 +00001673- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1674 give correct results in the case where one argument is a quiet NaN
1675 and the other is a finite number that requires rounding.
1676
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001677- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1678 libs.
1679
Georg Brandlf9734072008-12-07 15:30:06 +00001680- Added the subprocess.check_call_output() convenience function to get output
1681 from a subprocess on success or raise an exception on error.
1682
1683- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1684 support unusual filenames (such as those containing semi-colons) in
1685 Content-Disposition headers.
1686
1687- Issue #4384: Added logging integration with warnings module using
1688 captureWarnings(). This change includes a NullHandler which does nothing;
1689 it will be of use to library developers who want to avoid the "No handlers
1690 could be found for logger XXX" message which can appear if the library user
1691 doesn't configure logging.
1692
1693- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1694 exception.
1695
Georg Brandleee31162008-12-07 15:15:22 +00001696- Issue #4529: fix the parser module's validation of try-except-finally
1697 statements.
1698
1699- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1700 not a malformed option.
1701
1702- Added the subprocess.check_output() convenience function to get output
1703 from a subprocess on success or raise an exception on error.
1704
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001705- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1706 the corresponding tests now pass.
1707
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001708- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1709 it was calling the wrong open() function.
1710
Fred Drake9a0a65b2008-12-04 19:24:50 +00001711- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1712 support unusual filenames (such as those containing semi-colons) in
1713 Content-Disposition headers.
1714
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001715- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1716 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1717
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001718- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1719 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1720 and getservbyport().
1721
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001722- Windows locale mapping updated to Vista.
1723
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001724Tools/Demos
1725-----------
1726
Antoine Pitrou8a681222009-02-07 17:13:31 +00001727- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1728 and make it 2.6-compatible.
1729
Guilherme Poloa7d27972009-01-28 16:06:51 +00001730- Ttk demos added in Demo/tkinter/ttk/
1731
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001732- Issue #4677: add two list comprehension tests to pybench.
1733
Georg Brandlb1441c72009-01-03 22:33:39 +00001734
1735Build
1736-----
1737
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001738- Issue #6094: Build correctly with Subversion 1.7.
1739
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001740- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1741
Antoine Pitrou8966c992009-05-01 21:18:27 +00001742- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1743 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1744
Matthias Klose55708cc2009-04-30 08:06:49 +00001745- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001746 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001747
Matthias Klose906785c2009-02-22 23:18:38 +00001748- Link the shared python library with $(MODLIBS).
1749
Martin v. Löwis11f72102009-02-10 13:13:30 +00001750- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1751
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001752- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1753
Martin v. Löwise97637d2009-01-11 09:45:11 +00001754- Issue #4895: Use _strdup on Windows CE.
1755
Georg Brandlb1441c72009-01-03 22:33:39 +00001756- Issue #4472: "configure --enable-shared" now works on OSX
1757
1758- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1759
1760- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1761
1762- Issue #4289: Remove Cancel button from AdvancedDlg.
1763
1764- Issue #1656675: Register a drop handler for .py* files on Windows.
1765
1766- Issue #4120: Exclude manifest from extension modules in VS2008.
1767
1768- Issue #4091: Install pythonxy.dll in system32 again.
1769
1770- Issue #4018: Disable "for me" installations on Vista.
1771
1772- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1773
1774- Issue #4204: Fixed module build errors on FreeBSD 4.
1775
1776
1777C-API
1778-----
1779
Mark Dickinson21776072009-02-10 16:13:25 +00001780- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1781 for negative arguments. Previously, it raised TypeError.
1782
Georg Brandlb1441c72009-01-03 22:33:39 +00001783- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1784
1785- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1786 the GIL is released, or owned by another thread.
1787
1788- Issue #4122: On Windows, fix a compilation error when using the
1789 Py_UNICODE_ISSPACE macro in an extension module.
1790
1791
Mark Dickinsone675f082008-12-11 21:56:00 +00001792Extension Modules
1793-----------------
1794
Gregory P. Smith365a1862009-02-12 07:35:29 +00001795- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1796 supporting objects as input no matter how it was compiled (built in
1797 implementations or external openssl library).
1798
Mark Dickinson29500f62009-01-15 15:36:10 +00001799- Issue #4397: Fix occasional test_socket failure on OS X.
1800
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001801- Issue #4279: Fix build of parsermodule under Cygwin.
1802
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001803- Issue #4751: hashlib now releases the GIL when hashing large buffers
1804 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1805 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1806
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001807- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1808
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001809- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1810 or decompress several streams at once on multi-CPU systems. Also, the GIL
1811 is now released when computing the CRC of a large buffer. Patch by ebfe.
1812
Georg Brandlb1441c72009-01-03 22:33:39 +00001813- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1814
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001815- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1816
Mark Dickinsone675f082008-12-11 21:56:00 +00001817- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1818 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001819
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001820- Issue #4583: array.array would not always prohibit resizing when a buffer
1821 has been exported, resulting in an interpreter crash when accessing the
1822 buffer.
1823
Martin v. Löwis841edad2008-11-30 10:36:49 +00001824
Jack Diederiche0cbd692009-04-01 04:27:09 +00001825- Issue #5228: Make functools.partial objects can now be pickled.
1826
Guilherme Polo9de29af2009-01-28 20:40:48 +00001827Tests
1828-----
1829
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001830- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1831 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1832 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1833 skip the tests if DISPLAY is defined but can't be used.
1834
R. David Murraya21e4ca2009-03-31 23:16:50 +00001835- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001836 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001837 from test support, which does the conversion.
1838
Guilherme Polo9de29af2009-01-28 20:40:48 +00001839- Issue #5083: New 'gui' resource for regrtest.
1840
1841
Brett Cannon7317c1e2008-11-25 19:19:17 +00001842Docs
1843----
1844
Georg Brandl52b92cc2008-05-25 09:43:03 +00001845
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001846**(For information about older versions, consult the HISTORY file.)**