blob: befc61c323b0ac9a153ea94dda3031b8b9855e70 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Matthias Klosed4337802009-09-13 15:29:48 +00007What's New in Python 3.1.2?
Benjamin Petersone8fb2032009-06-27 22:03:18 +00008===========================
9
Matthias Klosed4337802009-09-13 15:29:48 +000010*Release date: 20xx-xx-xx*
Benjamin Petersone8fb2032009-06-27 22:03:18 +000011
12Core and Builtins
13-----------------
14
Antoine Pitrou20d6c152010-01-17 12:43:00 +000015- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
16 could crash in many places because of the PyByteArray_AS_STRING() macro
17 returning NULL. The macro now returns a statically allocated empty
18 string instead.
19
Mark Dickinson11f65782010-01-16 18:12:46 +000020- Issue #7632: Fix various str -> float conversion bugs present in 2.7
21 alpha 2, including: (1) a serious 'wrong output' bug that could
22 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
23 that occurred in debug builds when parsing certain long numeric
Mark Dickinsona3ba4a12010-01-17 14:41:03 +000024 strings corresponding to subnormal values, (3) a memory leak for
25 some values large enough to cause overflow, and (4) a number of
26 flaws that could lead to incorrectly rounded results.
Mark Dickinson46672512010-01-12 23:09:26 +000027
Benjamin Peterson533849a2009-12-30 19:47:05 +000028- Issue #7604: Deleting an unset slotted attribute did not raise an
29 AttributeError.
30
Antoine Pitrou2795e6c2009-12-12 19:26:06 +000031- Issue #7466: segmentation fault when the garbage collector is called
32 in the middle of populating a tuple. Patch by Florent Xicluna.
33
Amaury Forgeot d'Arcea315ac2009-12-01 22:03:44 +000034- Issue #7419: setlocale() could crash the interpreter on Windows when called
35 with invalid values.
36
Amaury Forgeot d'Arc36dfe782009-11-30 00:16:44 +000037- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
38 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
39
Ronald Oussoren1b2cad02009-11-19 17:30:05 +000040- Issue #7085: Fix crash when importing some extensions in a thread
41 on MacOSX 10.6.
42
Mark Dickinsonb6447512009-11-15 10:17:48 +000043- Issue #7298: fixes for range and reversed(range(...)). Iteration
44 over range(a, b, c) incorrectly gave an empty iterator when a, b and
45 c fit in C long but the length of the range did not. Also fix
46 several cases where reversed(range(a, b, c)) gave wrong results, and
47 fix a refleak for reversed(range(a, b, c)) with large arguments.
48
Raymond Hettingera9311a32009-11-01 21:02:38 +000049- Issue #7244: itertools.izip_longest() no longer ignores exceptions
50 raised during the formation of an output tuple.
51
Benjamin Peterson7dc5ac52009-10-29 01:22:38 +000052- Issue #3297: On wide unicode builds, do not split unicode characters into
53 surrogates.
54
Antoine Pitroucefb3162009-10-20 22:08:36 +000055- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
56 fixes the problem of some exceptions being thrown at shutdown when the
57 interpreter is killed. Patch by Adam Olsen.
58
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000059- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitroueda95e92009-10-19 19:47:59 +000060 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou96bb15b2009-10-14 17:18:54 +000061
Mark Dickinson2bbeb0e2009-09-29 19:24:38 +000062- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
63 of producing internally inconsistent Python longs.
64
Philip Jenvey962b05c2009-09-29 05:03:48 +000065- Issue #6990: Fix threading.local subclasses leaving old state around
66 after a reference cycle GC which could be recycled by new locals.
67
Mark Dickinson424d75a2009-09-06 10:20:23 +000068- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
69
Amaury Forgeot d'Arcaf0312a2009-08-29 23:19:16 +000070- Issue #6750: A text file opened with io.open() could duplicate its output
71 when writing from multiple threads at the same time.
72
Matthias Klosed4337802009-09-13 15:29:48 +000073Library
74-------
75
Benjamin Peterson79e0b812010-01-25 03:40:53 +000076- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
77 the release file is empty.
78
Antoine Pitrou1b643312010-01-17 12:19:45 +000079- Issue #7561: Fix crashes when using bytearray objects with the posix
80 module.
81
R. David Murrayfa606922010-01-16 18:41:00 +000082- Issue #1670765: Prevent email.generator.Generator from re-wrapping
83 headers in multipart/signed MIME parts, which fixes one of the sources of
84 invalid modifications to such parts by Generator.
85
Antoine Pitrou46e4dd22010-01-15 00:31:01 +000086- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
87 1-byte argument. Patch by Victor Stinner.
88
Antoine Pitrou0560e8a2010-01-14 17:37:24 +000089- Issue #3299: Fix possible crash in the _sre module when given bad
90 argument values in debug mode. Patch by Victor Stinner.
91
Benjamin Peterson109d3ab2010-01-13 03:53:14 +000092- Issue #7681: Use floor division in appropiate places in the wave module.
93
Tarek Ziadé343e2ff2010-01-11 23:23:44 +000094- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
95 Extension extra options may change the output without changing the .c
96 file). Initial patch by Collin Winter.
97
Tarek Ziadé5e9615f2010-01-09 00:03:39 +000098- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
99 gcc when it has a fully qualified configuration prefix. Initial patch
100 by Arfrever.
101
Antoine Pitrou1a2d3562010-01-08 17:56:16 +0000102- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
103 the destruction of weakref'ed objects while iterating.
104
Antoine Pitrou901d81e2010-01-07 18:02:53 +0000105- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
106 Victor Stinner.
107
R. David Murray93a59652010-01-06 20:12:07 +0000108- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
109 opening an empty or very small file.
110
Tarek Ziadéb7e82bb2009-12-21 23:18:02 +0000111- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
112 MSVC XML Manifest file in text mode so string patterns can be used
113 in regular expressions.
114
Tarek Ziadé63d14c02009-12-21 00:08:17 +0000115- Issue #7552: Removed line feed in the base64 Authorization header in
116 the Distutils upload command to avoid an error when PyPI reads it.
117 This occurs on long passwords. Initial patch by JP St. Pierre.
118
Senthil Kumaran4b9fbeb2009-12-20 07:18:22 +0000119- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
120 Tatsuhiro Tsujikawa.
121
Antoine Pitrouc8428d32009-12-14 18:23:30 +0000122- Issue #4757: `zlib.compress` and other methods in the zlib module now
123 raise a TypeError when given an `str` object (rather than a `bytes`-like
124 object). Patch by Victor Stinner and Florent Xicluna.
125
Benjamin Peterson6b59f772009-12-13 19:30:15 +0000126- Issue #7349: Make methods of file objects in the io module accept None as an
127 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
128 the same as passing no argument.
129
R. David Murraya6cdd832009-12-12 18:38:24 +0000130- Issue #5949: added check for correct lineends in input from IMAP server
131 in imaplib.
132
Raymond Hettinger64eaa202009-12-10 05:36:11 +0000133- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
134
Antoine Pitrou4fad6bd2009-12-08 16:00:03 +0000135- Issue #6986: Fix crash in the JSON C accelerator when called with the
136 wrong parameter types. Patch by Victor Stinner.
137
Tarek Ziadéd26d5382009-12-06 09:30:47 +0000138- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
139 generated in Distutils. Patch by Stephen Emslie.
140
Martin v. Löwis8ab31012009-12-03 21:14:10 +0000141- Issue #4120: Drop reference to CRT from manifest when building extensions with
142 msvc9compiler.
143
Raymond Hettinger6c8ee7a2009-11-30 21:55:17 +0000144- Issue #7410: deepcopy of itertools.count was resetting the count.
145
Antoine Pitroubcc63a82009-11-28 16:16:09 +0000146- Issue #4486: When an exception has an explicit cause, do not print its
147 implicit context too. This affects the `traceback` module as well as
148 built-in exception printing.
149
Senthil Kumarand884f8a2009-11-23 19:06:11 +0000150- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
151
Tarek Ziadéfd9ac222009-11-19 05:41:34 +0000152- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
153 be 2.
154
Raymond Hettingerb868e632009-11-19 01:02:56 +0000155- Issue #3976: pprint for sets, frozensets, and dicts now succeed when
156 they contain unorderable types.
157
Benjamin Peterson3a2249d2009-11-19 21:26:17 +0000158- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
159 of __str__.
Benjamin Petersona1f9c042009-11-19 03:10:36 +0000160
Lars Gustäbel7dfcef52009-11-18 21:11:27 +0000161- Issue #7341: Close the internal file object in the TarFile constructor in
162 case of an error.
163
Tarek Ziadé2cc70482009-11-18 10:19:38 +0000164- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
165 Windows box. Help provided by David Bolen.
166
Nick Coghlanb830a232009-11-15 23:27:31 +0000167- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
168
Antoine Pitrou4def5152009-11-13 22:39:40 +0000169- Issue #7318: multiprocessing now uses a timeout when it fails to establish
170 a connection with another process, rather than looping endlessly. The
171 default timeout is 20 seconds, which should be amply sufficient for
172 local connections.
173
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000174- Issue #7282: Fix a memory leak when an RLock was used in a thread other
175 than those started through `threading.Thread` (for example, using
176 `_thread.start_new_thread()`).
177
Brett Cannon3d26b952009-11-07 23:57:20 +0000178- Issue #7187: Importlib would not silence the IOError raised when trying to
179 write new bytecode when it was made read-only.
180
Antoine Pitroua9546072009-11-05 13:51:19 +0000181- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
182 which are part of a reference cycle.
183
Antoine Pitrou868b5782009-11-02 11:40:19 +0000184- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
185 a modification is done through it. This fixes inconsistencies and test
186 failures on systems with slightly bogus mtime behaviour.
187
Gregory P. Smith6c4a7252009-11-01 20:36:24 +0000188- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
189
Gregory P. Smithfc1c75d2009-11-01 18:48:31 +0000190- Issue #7246 & Issue #7208: getpass now properly flushes input before
191 reading from stdin so that existing input does not confuse it and
192 lead to incorrect entry or an IOError. It also properly flushes it
193 afterwards to avoid the terminal echoing the input afterwards on
194 OSes such as Solaris.
195
Mark Dickinson9050bb22009-10-29 12:25:07 +0000196- Issue #7233: Fix a number of two-argument Decimal methods to make
197 sure that they accept an int or long as the second argument. Also
198 fix buggy handling of large arguments (those with coefficient longer
199 than the current precision) in shift and rotate.
200
Antoine Pitroua3af0eb2009-10-27 17:49:21 +0000201- Issue #7205: Fix a possible deadlock when using a BZ2File object from
202 several threads at once.
203
Tarek Ziadéc76bcea2009-10-25 23:16:51 +0000204- Issue #7071: byte-compilation in Distutils is now done with respect to
205 sys.dont_write_bytecode.
206
Mark Dickinson2d4fce22009-10-20 13:40:25 +0000207- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
208 larger than emax.
209
Antoine Pitroueda95e92009-10-19 19:47:59 +0000210- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
211 platforms, and assorted locale fixes by Derk Drukker.
212
Antoine Pitroue566bda2009-10-19 18:24:35 +0000213- Issue #5833: Fix extra space character in readline completion with the
214 GNU readline library version 6.0.
215
Senthil Kumaran11301632009-10-11 06:07:46 +0000216- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
217
R. David Murray290e9392009-10-10 00:57:04 +0000218- Issue #7082: When falling back to the MIME 'name' parameter, the
219 correct place to look for it is the Content-Type header.
220
Benjamin Peterson0c7f9c92009-10-09 21:53:27 +0000221- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
222 builtin tokenizer.
223
Mark Dickinsonb0907612009-10-07 19:24:43 +0000224- Issue #7048: Force Decimal.logb to round its result when that result
225 is too large to fit in the current precision.
226
Antoine Pitrou384c9202009-09-21 21:42:29 +0000227- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitroueda95e92009-10-19 19:47:59 +0000228 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrou384c9202009-09-21 21:42:29 +0000229
Tarek Ziadé0cdc3692009-09-21 13:59:07 +0000230- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
231
Thomas Heller49ac2ac2009-09-18 20:09:57 +0000232- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
233 does now always result in NULL.
234
Thomas Heller35888e22009-09-18 19:46:56 +0000235- Issue #5042: Structure sub-subclass does now initialize correctly
236 with base class positional arguments.
237
Eric Smith53cda532009-09-18 13:59:58 +0000238- Issue #6882: Import uuid creates zombies processes.
239
Matthias Kloseb1117432009-09-13 15:31:14 +0000240- Issue #6635: Fix profiler printing usage message.
241
Matthias Klosed4337802009-09-13 15:29:48 +0000242- Issue #6888: pdb's alias command was broken when no arguments were given.
243
244- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
245 returning NaN or raising InvalidContext. Also, fix infinite recursion
246 in long(Decimal('nan')).
247
248- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
249 with no type specifier.
250
251- Issue #6239: ctypes.c_char_p return value must return bytes.
252
253- Issue #6838: Use a list to accumulate the value instead of
254 repeatedly concatenating strings in http.client's
255 HTTPResponse._read_chunked providing a significant speed increase
256 when downloading large files servend with a Transfer-Encoding of 'chunked'.
257
258- Have importlib raise ImportError if None is found in sys.modules for a
259 module.
260
261- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
262 payloads are now ordered by integer value rather than lexicographically.
263
264- Issue #6163: Fixed HP-UX runtime library dir options in
265 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
266 Michael Haubenwallner.
267
Matthias Klose513aab52010-01-16 22:02:32 +0000268- Issue #7066: archive_util.make_archive now restores the cwd if an error is
269 raised. Initial patch by Ezio Melotti.
270
Matthias Klosed4337802009-09-13 15:29:48 +0000271Extension Modules
272-----------------
273
Mark Dickinson015fa032009-10-08 16:02:50 +0000274- Issue #7078: Set struct.__doc__ from _struct.__doc__.
275
Matthias Klosed4337802009-09-13 15:29:48 +0000276- Issue #6848: Fix curses module build failure on OS X 10.6.
277
Matthias Klose865e33b2010-01-22 01:13:15 +0000278- Expat: Fix DoS via XML document with malformed UTF-8 sequences
279 (CVE_2009_3560).
280
Mark Dickinson95078872009-10-04 18:47:48 +0000281Tests
282-----
283
R. David Murray14520952009-12-20 17:37:25 +0000284- Issue #7376: instead of running a self-test (which was failing) when called
285 with no arguments, doctest.py now gives a usage message.
286
R. David Murrayc009b442009-12-14 22:57:04 +0000287- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
288 instead of a hardcoded port number in test_rapid_restart.
289
R. David Murray8054a5d2009-12-04 00:13:33 +0000290- Issue #7431: use TESTFN in test_linecache instead of trying to create a
291 file in the Lib/test directory, which might be read-only for the
292 user running the tests.
293
R. David Murray9f9b46c2009-11-15 00:35:37 +0000294- Issue #7324: add a sanity check to regrtest argument parsing to
295 catch the case of an option with no handler.
296
Antoine Pitrouca154092009-11-13 16:31:51 +0000297- Issue #6551: test_zipimport could import and then destroy some modules of
298 the encodings package, which would make other tests fail further down
299 the road because the internally cached encoders and decoders would point
300 to empty global variables.
301
Antoine Pitroub78ba6b2009-11-11 21:01:33 +0000302- Issue #7295: Do not use a hardcoded file name in test_tarfile.
303
Antoine Pitrou959f3e52009-11-09 16:52:46 +0000304- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
305 primitives such as Lock, RLock, Condition, Event and Semaphore.
306
Brett Cannon142d2362009-11-05 01:34:30 +0000307- Issue #7248 (part 2): Use a unique temporary directory for importlib source
308 tests instead of tempfile.tempdir. This prevents the tests from sharing state
309 between concurrent executions on the same system.
310
311- Issue #7248: In importlib.test.source.util a try/finally block did not make
312 sure that some referenced objects actually were created in the block before
313 calling methods on the object.
314
Antoine Pitrou56e00ca2009-10-27 13:08:37 +0000315- Issue #7055: test___all__ now greedily detects all modules which have an
316 __all__ attribute, rather than using a hardcoded and incomplete list.
317
R. David Murray6bf5a2e82009-10-07 23:54:53 +0000318- Issue #7058: Added save/restore for argv and os.environ to runtest_inner
319 in regrtest, with warnings if the called test modifies them.
320
Mark Dickinson95078872009-10-04 18:47:48 +0000321- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
322
Benjamin Petersonbb81c8c2010-01-09 21:54:39 +0000323C-API
324-----
325
326- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
327 has '\0' at the end.
328
Matthias Klose513aab52010-01-16 22:02:32 +0000329- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
330 in PyArg_ParseTupleAndKeywords.
331
Matthias Klosed4337802009-09-13 15:29:48 +0000332Build
333-----
334
Mark Dickinson173a1ee2010-01-17 21:06:28 +0000335- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
336 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
337 PyMem_Free instead. Also disable caching of powers of 5.
338
Martin v. Löwis5330aa52009-12-22 10:48:47 +0000339- Switch to OpenSSL 0.9.8l on Windows.
340
Mark Dickinsonee2dd4a2009-10-31 10:20:38 +0000341- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
342 compiles correctly under gcc on x86-64. This fixes a reported
343 problem with the --with-tsc build on x86-64.
344
Matthias Klosed4337802009-09-13 15:29:48 +0000345- Issue #6802: Fix build issues on MacOSX 10.6
346
347- Issue #6801 : symmetric_difference_update also accepts |.
348 Thanks to Carl Chenet.
349
Matthias Klose513aab52010-01-16 22:02:32 +0000350- Issue #7541: when using ``python-config`` with a framework install the
351 compiler might use the wrong library.
352
353- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
354
355- Issue #7589: Only build the nis module when the correct header files are
356 found.
Ronald Oussoren8c067812009-12-24 14:24:05 +0000357
Matthias Klosed4337802009-09-13 15:29:48 +0000358Documentation
359-------------
360
361- Issue #6556: Fixed the Distutils configuration files location explanation
362 for Windows.
363
364
365What's New in Python 3.1.1?
366===========================
367
368*Release date: 2009-08-13*
369
370Core and Builtins
371-----------------
372
Benjamin Peterson044446b2009-08-15 13:25:28 +0000373- Issue #6707: dir() on an uninitialized module caused a crash.
374
Georg Brandl069bcc32009-07-22 12:06:11 +0000375- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
376
Raymond Hettinger63853bb2009-07-27 20:29:18 +0000377- Issue #6573: set.union() stopped processing inputs if an instance of self
378 occurred in the argument chain.
379
R. David Murray10fc3952009-07-19 02:25:02 +0000380- Issue #6070: On posix platforms import no longer copies the execute bit
381 from the .py file to the .pyc file if it is set.
382
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +0000383- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
384 object, and not an int. Fix the corresponding error message, and the
385 documentation.
386
Mark Dickinson8c1e2942009-06-30 15:46:37 +0000387- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
388 This fixes a build failure on HP-UX: int32_t and uint32_t are
389 defined in inttypes.h instead of stdint.h on that platform.
390
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +0000391- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +0000392 the 'surrogateescape' error handler, a string which contains unpaired
393 surrogates.
394
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000395C-API
396-----
397
Georg Brandl878c3b02009-08-13 08:36:43 +0000398- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
399 NUL: Bogus TypeError detail string.
400
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000401- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +0000402
Benjamin Petersone39d5d52009-07-02 22:02:15 +0000403- The code flags for old __future__ features are now available again.
404
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000405Library
406-------
407
Georg Brandle6700e92009-08-13 08:39:33 +0000408- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
409 DO/DONT correctly.
410
Georg Brandl8a038b22009-08-13 07:52:08 +0000411- Issue #6126: Fixed pdb command-line usage.
412
Antoine Pitrou0473e562009-08-06 20:52:43 +0000413- Issue #6629: Fix a data corruption issue in the new I/O library, which could
414 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
415 "wb+" mode) after having buffered a certain amount of data for reading. This
416 bug was not present in the pure Python implementation.
417
Mark Dickinson825b9932009-08-06 16:08:07 +0000418- Issue #6622: Fix "local variable 'secret' referenced before
419 assignment" bug in POP3.apop.
420
Raymond Hettinger99a13ee2009-08-04 19:13:37 +0000421- Issue #6637: defaultdict.copy() did not work when the default factory
422 was left unspecified. Also, the eval/repr round-trip would fail when
423 the default_factory was None.
424
Mark Dickinson34776ca2009-08-02 20:09:59 +0000425- Issue #2715: Remove remnants of Carbon.File from binhex module.
426
Mark Dickinson8d238292009-08-02 10:16:33 +0000427- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +0000428decimal digits in input, as recommended by the standard. Previously
429it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +0000430
R. David Murraya44c6b32009-07-29 15:40:30 +0000431- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +0000432unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
433descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +0000434
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000435- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +0000436working through proxy. Original patch by Christopher Li, changes made by
437Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +0000438
Brett Cannon2e3155e2009-07-20 03:22:43 +0000439- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +0000440the documentation said it did even though the code in PyLoader relied on the
441abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +0000442
Mark Dickinson8d156432009-07-18 14:43:10 +0000443- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +0000444know how to handle a comparison without loss of precision. Also add
445correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +0000446
Antoine Pitrou992d3d12009-08-06 21:01:42 +0000447- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +0000448
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000449- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +0000450reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +0000451
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000452- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +0000453syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +0000454
Georg Brandlae83d6e2009-08-13 09:04:31 +0000455- Issue #3392: The subprocess communicate() method no longer fails in select()
456 when file descriptors are large; communicate() now uses poll() when possible.
457
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000458- Issue #6369: Fix an RLE decompression bug in the binhex module.
459
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000460- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
461
Georg Brandlae83d6e2009-08-13 09:04:31 +0000462- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
463 sys.path.
464
465Extension Modules
466-----------------
467
Brett Cannon0c811072009-08-13 19:59:04 +0000468- Fix a segfault in expat.
469
Georg Brandlae83d6e2009-08-13 09:04:31 +0000470- Issue #4509: array.array objects are no longer modified after an operation
471 failing due to the resize restriction in-place when the object has exported
472 buffers.
473
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000474Build
475-----
476
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000477- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000478directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000479
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000480- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000481extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000482
Brett Cannon10e35b32009-07-20 00:19:49 +0000483Test
484----
485
486- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000487testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000488
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000489
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000490What's New in Python 3.1?
491=========================
492
493*Release date: 27-June-2009*
494
495Core and Builtins
496-----------------
497
Mark Dickinsonad195562009-06-24 19:01:32 +0000498- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000499large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000500
Raymond Hettinger159eac92009-06-23 20:38:54 +0000501- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000502because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000503
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000504Library
505-------
506
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000507- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000508argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000509
Facundo Batista10706e22009-06-19 20:34:30 +0000510- Issue #6274: Fixed possible file descriptors leak in subprocess.py
511
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000512- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000513io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000514
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000515- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000516(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000517
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000518- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000519store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000520
Matthias Kloseab2b7552009-06-22 13:05:52 +0000521Extension Modules
522-----------------
523
524- Issue #5590: Remove unused global variable in pyexpat extension.
525
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000526
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000527What's New in Python 3.1 Release Candidate 2?
528=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000529
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000530*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000531
532Core and Builtins
533-----------------
534
Raymond Hettinger94f55832009-06-12 18:40:16 +0000535- Fixed SystemError triggered by "range([], 1, -1)".
536
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000537- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000538(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000539
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000540- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000541possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000542
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000543- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000544 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000545
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000546Library
547-------
548
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000549- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000550expression string pattern was trying to match against a bytes returned by
551Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000552
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000553- Issue #6258: Support AMD64 in bdist_msi.
554
R. David Murray58641de2009-06-12 15:33:19 +0000555- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000556binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000557
Vinay Sajipaffbd872009-06-11 10:11:47 +0000558- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000559TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000560
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000561- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000562errors property. Additionally, the errors and encoding properties of StringIO
563are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000564
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000565- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000566or dumping pickles with a 2.x-compatible protocol, in order to make data
567sharing and migration easier. This behaviour can be disabled using the
568new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000569
Raymond Hettinger40925d22009-06-04 18:32:39 +0000570- Removed the ipaddr module.
571
Georg Brandlb54d8012009-06-04 09:11:51 +0000572- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000573base64.{encode,decode}bytes which reflects what type they accept and return.
574The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000575
Georg Brandl317185a2009-06-04 09:00:56 +0000576- Issue #5767: Remove sgmlop support from xmlrpc.client.
577
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000578- Issue #6150: Fix test_unicode on wide-unicode builds.
579
Antoine Pitrouc06de472009-05-30 21:04:26 +0000580- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000581parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000582
Martin v. Löwis79b13872009-06-01 04:13:14 +0000583Windows
584-------
585
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000586- Issue #6221: Delete test registry key before running the test.
587
Martin v. Löwis79b13872009-06-01 04:13:14 +0000588- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
589
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000590C-API
591-----
592
593- Issue #5735: Python compiled with --with-pydebug should throw an
594 ImportError when trying to import modules compiled without
595 --with-pydebug, and vice-versa.
596
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000597
Brett Cannonc6d936e2009-06-07 20:09:53 +0000598Build
599-----
600
601- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
602 added LIBS to OS X framework builds.
603
Ronald Oussoren99aab652009-06-08 21:22:57 +0000604- Issue #5809: Specifying both --enable-framework and --enable-shared is
605 an error. Configure now explicity tells you about this.
606
607
Brett Cannonc6d936e2009-06-07 20:09:53 +0000608
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000609What's New in Python 3.1 release candidate 1?
610=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000611
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000612*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000613
614Core and Builtins
615-----------------
616
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000617- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
618 of the command line.
619
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000620- Issue #6012: Add cleanup support to O& argument parsing.
621
Eric Smith41669ca2009-05-23 14:23:22 +0000622- Issue #6089: Fixed str.format with certain invalid field specifiers
623 that would raise SystemError.
624
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000625- Issue #5982: staticmethod and classmethod now expose the wrapped
626 function with __func__.
627
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000628- Added support for multiple context managers in the same with-statement.
629 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000630
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000631- Issue #5829: complex("1e500") no longer raises OverflowError. This
632 makes it consistent with float("1e500") and interpretation of real
633 and imaginary literals.
634
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000635- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
636
R. David Murraydd226ea2009-05-13 12:27:21 +0000637- Issue #5994: the marshal module now has docstrings.
638
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000639- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
640 (1) inf and nan strings with trailing whitespace were incorrectly
641 rejected; (2) parsing of strings representing infinities and nans
642 was locale aware; and (3) the interpretation of fromhex('-nan')
643 didn't match that of float('-nan').
644
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000645Library
646-------
647
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000648- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
649
R. David Murrayfb123912009-05-28 18:19:00 +0000650- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
651
R. David Murray1f1b9d32009-05-27 20:56:59 +0000652- Issue #6121: pydoc now ignores leading and trailing spaces in the
653 argument to the 'help' function.
654
Georg Brandlfaf41492009-05-26 18:31:11 +0000655- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
656 arguments for strings with a space in them.
657
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000658- collections.namedtuple() was not working with the following field
659 names: cls, self, tuple, itemgetter, and property.
660
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000661- In unittest, using a skipping decorator on a class is now equivalent to
662 skipping every test on the class. The ClassTestSuite class has been removed.
663
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000664- Issue #6050: Don't fail extracting a directory from a zipfile if
665 the directory already exists.
666
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000667- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
668 than an int, which makes some operations possible under 64-bit Linux (e.g.
669 DN_MULTISHOT with F_NOTIFY).
670
Antoine Pitrou716c4442009-05-23 19:04:03 +0000671- Issue #5761: Add the name of the underlying file to the repr() of various
672 IO objects.
673
R. David Murraycaa27b72009-05-23 18:49:56 +0000674- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
675 by Musashi Tamura, tests by Marcin Bachry.
676
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000677- Issue #1983: Fix functions taking or returning a process identifier to use
678 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
679 a process identifier type wider than the standard C integer type.
680
R. David Murray87e20742009-05-23 01:30:26 +0000681- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
682 Patch by Farhan Ahmad, test by Marcin Bachry.
683
Antoine Pitrou6e610062009-05-15 17:04:50 +0000684- Issue #2116: Weak references and weak dictionaries now support copy()ing and
685 deepcopy()ing.
686
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000687- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
688
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000689- Issue #5918: Fix a crash in the parser module.
690
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000691- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
692
Antoine Pitroue4501852009-05-14 18:55:55 +0000693- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
694 library. This means, for example, that opening an UTF-16 text file in
695 append mode doesn't add a BOM at the end of the file if the file isn't
696 empty.
697
R. David Murray74b89242009-05-13 17:33:03 +0000698- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
699 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
700 corrects a pydoc regression.
701
R. David Murray99352742009-05-07 18:24:38 +0000702- Issue 5955: aifc's close method did not close the file it wrapped,
703 now it does. This also means getfp method now returns the real fp.
704
Benjamin Peterson932073a2009-05-23 16:14:33 +0000705Installation
706------------
707
708- Issue #6047: fullinstall has been removed because Python 3's executable will
709 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000710
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000711- Lib/smtpd.py is no longer installed as a script.
712
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000713Extension Modules
714-----------------
715
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000716- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000717
Martin v. Löwise23c8682009-05-29 16:01:34 +0000718- Issue #4873: Fix resource leaks in error cases of pwd and grp.
719
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000720- Issue #6093: Fix off-by-one error in locale.strxfrm.
721
Benjamin Peterson744af442009-05-23 18:51:49 +0000722- The _functools and _locale modules are now built into the libpython shared
723 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000724
Antoine Pitrou20327222009-05-24 20:39:11 +0000725Build
726-----
727
728- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
729 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
730 Clinton Roy.
731
Brett Cannon1262e7c2009-05-11 01:47:11 +0000732Tests
733-----
734
735- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
736 tests on darwin even when the OS was installed on a case-sensitive
737 filesystem. Also fixed tests that should not be run when
738 sys.dont_write_bytecode is true.
739
740
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000741What's New in Python 3.1 beta 1?
742================================
743
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000744*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000745
746Core and Builtins
747-----------------
748
Mark Dickinson865e01a2009-05-07 16:37:01 +0000749- Issue #5914: Add new C API function PyOS_string_to_double, and
750 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
751
Eric Smith741191f2009-05-06 13:08:15 +0000752- Issue #3382: float.__format__, complex.__format__, and %-formatting
753 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
754 affects nan -> NAN and inf -> INF.
755
Mark Hammond5a607a32009-05-06 08:04:54 +0000756- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
757 in all operations, including splitdrive, split, etc. splitunc() now issues
758 a PendingDeprecation warning.
759
Eric Smith63376222009-05-05 14:04:18 +0000760- Issue #5920: For float.__format__, change the behavior with the
761 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
762 to be like 'g' but with at least one decimal point and with a
763 default precision of 12. Previously, the behavior the same but with
764 a default precision of 6. This more closely matches str(), and
765 reduces surprises when adding alignment flags to the empty
766 presentation type. This also affects the new complex.__format__ in
767 the same way.
768
Martin v. Löwis011e8422009-05-05 04:43:17 +0000769- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
770
R. David Murrayb18500d2009-05-04 22:59:07 +0000771- Issue #5890: in subclasses of 'property' the __doc__ attribute was
772 shadowed by classtype's, even if it was None. property now
773 inserts the __doc__ into the subclass instance __dict__.
774
Antoine Pitrou244651a2009-05-04 18:56:13 +0000775- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
776 sequences. Patch by Nick Barnes and Victor Stinner.
777
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000778- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000779
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000780- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
781 received a new method, detach(). detach() disconnects the underlying stream
782 from the buffer or text IO and returns it.
783
Mark Dickinson33841c32009-05-01 15:37:04 +0000784- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
785 floats with absolute value over 1e50. Also remove length
786 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
787 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000788
Eric Smith741191f2009-05-06 13:08:15 +0000789- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000790 format(complex(1, 2./3), '.5') now produces a sensible result.
791
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000792- Issue #5864: Fix empty format code formatting for floats so that it
793 never gives more than the requested number of significant digits.
794
Eric Smith6dc46f52009-04-27 20:39:49 +0000795- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
796 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
797
Eric Smithcc32a112009-04-26 21:35:14 +0000798- Issue #5835: Deprecate PyOS_ascii_formatd.
799
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000800- Issue #4971: Fix titlecase for characters that are their own
801 titlecase, but not their own uppercase.
802
Benjamin Peterson193152c2009-04-25 01:08:45 +0000803- Issue #5283: Setting __class__ in __del__ caused a segfault.
804
Mark Dickinsonad476da2009-04-23 19:14:16 +0000805- Issue #5816: complex(repr(z)) now recovers z exactly, even when
806 z involves nans, infs or negative zeros.
807
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000808- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000809
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000810- Issue #1869 (and many duplicates): make round(x, n) correctly
811 rounded for a float x, by using the decimal <-> binary conversions
812 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
813 consistently agrees with format(x, '.2f').
814
Benjamin Petersonae937c02009-04-18 20:54:08 +0000815- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
816 some builtin types.
817
Eric Smith0923d1d2009-04-16 20:16:10 +0000818- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
819
Eric Smith35e84722009-04-16 20:21:28 +0000820- Issue #5515: str.format() type 'n' combined with commas and leading
821 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000822
823- Implement PEP 378, Format Specifier for Thousands Separator, for
824 floats.
825
Mark Dickinson3370cce2009-04-17 22:40:53 +0000826- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000827 1e11, not 1e12. This avoids printing 13 significant digits in
828 situations where only 12 of them are correct. Example problem
829 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
830 long time.)
831
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000832- Issue #1580: On most platforms, use a 'short' float repr: for a
833 finite float x, repr(x) now outputs a string based on the shortest
834 sequence of decimal digits that rounds to x. Previous behaviour was
835 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000836 Another minor difference is that the new repr switches to
837 exponential notation at 1e16 instead of the previous 1e17; this
838 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000839
840 There's a new sys attribute sys.float_repr_style, which takes
841 the value 'short' to indicate that we're using short float repr,
842 and 'legacy' if the short float repr isn't available for one
843 reason or another.
844
845 The float repr change involves incorporating David Gay's 'perfect
846 rounding' code into the Python core (it's in Python/dtoa.c). As a
847 secondary consequence, all string-to-float and float-to-string
848 conversions (including all float formatting operations) will be
849 correctly rounded on these platforms.
850
851 See issue 1580 discussions for details of platforms for which
852 this change does not apply.
853
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000854- Issue #5759: float() didn't call __float__ on str subclasses.
855
Georg Brandlabc38772009-04-12 15:51:51 +0000856- The string.maketrans() function is deprecated; there is a new static method
857 maketrans() on the bytes and bytearray classes. This removes confusion about
858 the types string.maketrans() is supposed to work with, and mirrors the
859 methods available on the str class.
860
R. David Murraydc6da8a2009-04-09 22:16:43 +0000861- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
862 its clarity and its speed.
863
Matthias Klose091c7b12009-04-07 13:24:27 +0000864- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
865 to avoid compiler warnings.
866
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000867- Issue #3739: The unicode-internal encoder now reports the number of characters
868 consumed like any other encoder (instead of the number of bytes).
869
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000870Installation
871------------
872
873- Issue #5756: Install idle and pydoc with a 3 suffix.
874
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000875Library
876-------
877
Martin v. Löwis403117a2009-05-24 19:19:17 +0000878- Issue #5311: bdist_msi can now build packages that do not depend on a
879 specific Python version.
880
Raymond Hettingereb816952009-05-29 01:22:18 +0000881- Issue #5150: IDLE's format menu now has an option to strip trailing
882 whitespace.
883
Vinay Sajipaffbd872009-06-11 10:11:47 +0000884- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000885 the right type checkings anymore.
886
Thomas Heller00cfc372009-05-05 19:04:40 +0000887- Issue #4875: On win32, ctypes.util.find_library does no longer
888 return directories.
889
Georg Brandl243ad662009-05-05 09:00:19 +0000890- Issue #5142: Add the ability to skip modules while stepping to pdb.
891
Georg Brandl991f9202009-05-05 08:31:54 +0000892- Issue #1309567: Fix linecache behavior of stripping subdirectories when
893 looking for files given by a relative filename.
894
Georg Brandleaa84ef2009-05-05 08:14:33 +0000895- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
896 turtle demos in Demo/turtle.
897
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000898- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
899 extracting a file to the root directory.
900
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000901- Issue #5913: os.listdir() should fail for empty path on windows.
902
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000903- Issue #5084: unpickling now interns the attribute names of pickled objects,
904 saving memory and avoiding growth in size of subsequent pickles. Proposal
905 and original patch by Jake McGuire.
906
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000907- The json module now works exclusively with str and not bytes.
908
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000909- Issue #3959: The ipaddr module has been added to the standard library.
910 Contributed by Google.
911
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000912- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
913 error when a named pipe is encountered, rather than blocking infinitely.
914
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000915- Issue #5857: tokenize.tokenize() now returns named tuples.
916
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000917- Issue #4305: ctypes should now build again on mipsel-linux-gnu
918
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000919- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
920 string is already in normalized form, by performing a quick check beforehand.
921 Original patch by Rauli Ruohonen.
922
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000923- Issue #5853: calling a function of the mimetypes module from several threads
924 at once could hit the recursion limit if the mimetypes database hadn't been
925 initialized before.
926
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000927- Issue #5854: Updated __all__ to include some missing names and remove some
928 names which should not be exported.
929
Thomas Heller34596a92009-04-24 20:50:00 +0000930- Issue #3102: All global symbols that the _ctypes extension defines
931 are now prefixed with 'Py' or '_ctypes'.
932
933- Issue #5041: ctypes does now allow pickling wide character.
934
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000935- Issue #5812: For the two-argument form of the Fraction constructor,
936 Fraction(m, n), m and n are permitted to be arbitrary Rational
937 instances.
938
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000939- Issue #5812: Fraction('1e6') is valid: more generally, any string
940 that's valid for float() is now valid for Fraction(), with the
941 exception of strings representing NaNs and infinities.
942
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000943- Issue #5734: BufferedRWPair was poorly tested and had several glaring
944 bugs. Patch by Brian Quinlan.
945
R. David Murray9e94ddf2009-04-13 17:06:33 +0000946- Issue #1161031: fix readwrite select flag handling: POLLPRI now
947 results in a handle_expt_event call, not handle_read_event, and POLLERR
948 and POLLNVAL now call handle_close, not handle_expt_event. Also,
949 dispatcher now has an 'ignore_log_types' attribute for suppressing
950 log messages, which is set to 'warning' by default.
951
Matthias Klosea3d29e82009-04-07 13:13:10 +0000952- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
953 new arguments introduced in 2.5.
954
Walter Dörwald1b08b302009-04-25 14:13:56 +0000955- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
956 makeunicodedata.py and regenerated the Unicode database (This fixes
957 u'\u1d79'.lower() == '\x00').
958
Matthias Klose535336f2009-04-07 13:49:45 +0000959Extension Modules
960-----------------
961
Benjamin Petersone04b6272009-05-04 22:25:21 +0000962- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
963 pwd.
964
Mark Dickinsonea835e72009-04-19 20:40:33 +0000965- Issue #5463: In struct module, remove deprecated float coercion
966 for integer type codes: struct.pack('L', 0.3) should now raise
967 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
968 The version number has been bumped to 0.3.
969
Matthias Klose535336f2009-04-07 13:49:45 +0000970- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
971 using Berkley-DB.
972
Nick Coghlan47384702009-04-22 16:13:36 +0000973Tests
974-----
975
976- Issue #5354: New test support function import_fresh_module() makes
977 it easy to import both normal and optimised versions of modules.
978 test_heapq and test_warnings have been adjusted to use it, tests for
979 other modules with both C and Python implementations in the stdlib
980 can be adjusted to use it over time.
981
Walter Dörwald4ba80132009-04-25 12:48:43 +0000982- Issue #5837: Certain sequences of calls to set() and unset() for
983 support.EnvironmentVarGuard objects restored the environment variables
984 incorrectly on __exit__.
985
Benjamin Petersonb173f782009-05-05 22:31:58 +0000986C-API
987-----
988
989- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
990
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000991
Benjamin Petersond1735892009-03-07 18:46:21 +0000992What's New in Python 3.1 alpha 2?
993=================================
994
Benjamin Peterson88f14352009-04-04 21:06:52 +0000995*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000996
997Core and Builtins
998-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000999
Eric Smith1e1d7d22009-04-03 22:25:33 +00001000- Implement PEP 378, Format Specifier for Thousands Separator, for
1001 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001002
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001003- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1004
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001005- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1006 byte, and the 'C' code only accepts a unicode character.
1007
Georg Brandl406b3d82009-04-11 21:24:37 +00001008- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1009 when hitting the recursion limit under certain circumstances.
1010
Brett Cannon0759dd62009-04-01 18:13:07 +00001011- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1012
Georg Brandlab6f2f62009-03-31 04:16:10 +00001013- Fix a segfault when running test_exceptions with coverage, caused by
1014 insufficient checks in accessors of Exception.__context__.
1015
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001016- Issue #5604: non-ASCII characters in module name passed to
1017 imp.find_module() were converted to UTF-8 while the path is
1018 converted to the default filesystem encoding, causing nonsense.
1019
Benjamin Peterson09832742009-03-26 17:15:46 +00001020- Issue #5126: str.isprintable() returned False for space characters.
1021
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001022- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1023 the end sys.path, for compatibility with the system install of Python.
1024
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001025- Issue #4688: Add a heuristic so that tuples and dicts containing only
1026 untrackable objects are not tracked by the garbage collector. This can
1027 reduce the size of collections and therefore the garbage collection overhead
1028 on long-running programs, depending on their particular use of datatypes.
1029
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001030- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1031 improve its performance. Long divisions and remainder operations
1032 are now between 50% and 150% faster.
1033
Mark Dickinsonbd792642009-03-18 20:06:12 +00001034- Issue #4258: Make it possible to use base 2**30 instead of base
1035 2**15 for the internal representation of integers, for performance
1036 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1037 --enable-big-digits option to configure, which overrides the
1038 default. Add sys.int_info structseq to provide information about
1039 the internal format.
1040
Mark Dickinson081dfee2009-03-18 14:47:41 +00001041- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1042 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1043 and sizeof(Py_UNICODE) == 2.
1044
Eric Smith8ec90442009-03-14 12:29:34 +00001045- Issue #5237: Allow auto-numbered fields in str.format(). For
1046 example: '{} {}'.format(1, 2) == '1 2'.
1047
Antoine Pitrou652e7072009-03-13 19:25:20 +00001048- Issue #5392: when a very low recursion limit was set, the interpreter would
1049 abort with a fatal error after the recursion limit was hit twice.
1050
Matthias Klose042f1332009-04-04 14:32:42 +00001051- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1052 short file names.
1053
Benjamin Petersond1735892009-03-07 18:46:21 +00001054Library
1055-------
1056
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001057- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001058 mailbox.MH.get_message().
1059
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001060- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1061 error substitutions from non-strict codec error callbacks in
1062 incrementalencoder and StreamWriter.
1063
Georg Brandl33c28812009-04-01 23:07:29 +00001064- Issue #5656: Fix the coverage reporting when running the test suite with
1065 the -T argument.
1066
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001067- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1068
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001069- Issue #5624: Fix the _winreg module name still used in several modules.
1070
Benjamin Petersona1b49012009-03-31 23:11:32 +00001071- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1072
Jesse Nollera9314042009-03-31 22:36:44 +00001073- Issue #5619: Multiprocessing children disobey the debug flag and causes
1074 popups on windows buildbots. Patch applied to work around this issue.
1075
Jesse Noller32d68c22009-03-31 18:48:42 +00001076- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1077
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001078- Issue #5387: Fixed mmap.move crash by integer overflow.
1079
Jesse Nollerf8d00852009-03-31 03:25:07 +00001080- Issue #5261: Patch multiprocessing's semaphore.c to support context
1081 manager use: "with multiprocessing.Lock()" works now.
1082
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001083- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1084 bytes already but the failure was non-obvious.
1085
Jesse Noller7af4ef82009-03-30 16:47:15 +00001086- Issue #5177: Multiprocessing's SocketListener class now uses
1087 socket.SO_REUSEADDR on all connections so that the user no longer needs
1088 to wait 120 seconds for the socket to expire.
1089
Benjamin Peterson48e24782009-03-29 13:02:52 +00001090- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1091
Antoine Pitrou66994e12009-03-29 00:45:26 +00001092- Issue #1174606: Calling read() without arguments of an unbounded file
1093 (typically /dev/zero under Unix) could crash the interpreter.
1094
Benjamin Peterson59406a92009-03-26 17:10:29 +00001095- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1096 io.BufferedRandom have been deprecated for removal in Python 3.2.
1097
Lars Gustäbel42e00912009-03-22 20:34:29 +00001098- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1099 forever on incomplete input. That caused tarfile.open() to hang when used
1100 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1101 partial bzip2 compressed data.
1102
Mark Dickinson79f52032009-03-17 23:12:51 +00001103- Issue #2110: Add support for thousands separator and 'n' type
1104 specifier to Decimal.__format__
1105
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001106- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1107 '>' alignment characters.
1108
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001109- The error detection code in FileIO.close() could fail to reflect the `errno`
1110 value, and report it as -1 instead.
1111
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001112- Issue #5016: FileIO.seekable() could return False if the file position
1113 was negative when truncated to a C int. Patch by Victor Stinner.
1114
Mark Dickinsonae681df2009-03-21 10:26:31 +00001115Extension Modules
1116-----------------
1117
Benjamin Petersone099b372009-04-04 17:09:35 +00001118- Issue #5391: mmap now deals exclusively with bytes.
1119
Mark Dickinsonae681df2009-03-21 10:26:31 +00001120- Issue #5463: In struct module, remove deprecated overflow wrapping
1121 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001122 struct.error instead of returning b'\xff\xff\xff\xff'. The
1123 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1124 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001125
Benjamin Petersond1735892009-03-07 18:46:21 +00001126
Benjamin Petersona58a6262009-03-07 16:34:40 +00001127What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001128================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001129
Benjamin Petersona58a6262009-03-07 16:34:40 +00001130*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001131
1132Core and Builtins
1133-----------------
1134
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001135- The io module has been reimplemented in C for speed.
1136
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001137- Give dict views an informative __repr__.
1138
Eric Smith5e5c0db2009-02-20 14:25:03 +00001139- Issue #5247: Improve error message when unknown format codes are
1140 used when using str.format() with str, int, and float arguments.
1141
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001142- Issue #5249: time.strftime returned malformed string when format string
1143 contained non ascii character on windows.
1144
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001145- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1146 source has already been decoded into str.
1147
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001148- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1149 rotating the object pointer by 4 bits to the right.
1150
Mark Dickinson87ec0852009-02-09 17:15:59 +00001151- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1152 it now forces its argument to double before testing for infinity.
1153
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001154- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1155 returns a non-number type.
1156
Benjamin Peterson87618552009-02-08 15:00:52 +00001157- Issue #5182: Removed memoryview.__str__.
1158
Mark Dickinsonc008a172009-02-01 13:59:22 +00001159- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1160 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001161 the type definition cmpfunc. The tp_compare slot has been renamed
1162 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001163
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001164- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001165 were suppressing all exceptions. These include list() and bytearray().
1166
Mark Dickinson1124e712009-01-28 21:25:58 +00001167- Issue #4707: round(x, n) now returns an integer if x is an integer.
1168 Previously it returned a float.
1169
Antoine Pitroub52ec782009-01-25 16:34:23 +00001170- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1171 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1172 evaluation loop is compiled with a new dispatch mechanism which gives
1173 speedups of up to 20%, depending on the system, on various benchmarks.
1174
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001175- Issue #4874: Most builtin decoders now reject unicode input.
1176
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001177- Issue #4842: Don't allow trailing 'L' when constructing an integer
1178 from a string.
1179
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001180- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1181
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001182- Issue #4838: When a module is deallocated, free the memory backing the
1183 optional module state data.
1184
Mark Dickinson8055afd2009-01-17 10:04:45 +00001185- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1186 type to (void *).
1187
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001188- Issue #4935: The overflow checking code in the expandtabs() method common
1189 to str, bytes and bytearray could be optimized away by the compiler, letting
1190 the interpreter segfault instead of raising an error.
1191
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001192- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1193 __next__ method.
1194
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001195- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1196 function no longer attempt to call the __long__ slot to convert an object
1197 to an integer. Only the __int__ and __trunc__ slots are examined.
1198
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001199- Issue #4893: Use NT threading on CE.
1200
Martin v. Löwisec59d042009-01-12 07:59:10 +00001201- Issue #4915: Port sysmodule to Windows CE.
1202
Antoine Pitrouab868312009-01-10 15:40:25 +00001203- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1204 common cases are optimized thanks to a dedicated fast path and a moderate
1205 amount of loop unrolling.
1206
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001207- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1208 collecting the oldest generation) so that allocating lots of objects without
1209 destroying them does not show quadratic performance. Based on a proposal by
1210 Martin von Löwis at
1211 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1212
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001213- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001214 having been closed (for instance, a read() call could return some
1215 previously buffered data). Patch by Dmitry Vasiliev.
1216
Antoine Pitrou05608432009-01-09 18:53:14 +00001217- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1218 flag to work properly. Furthermore, when specifying -u, the text stdout
1219 and stderr streams have line-by-line buffering enabled (the default being
1220 to buffer arbitrary chunks of data).
1221
Raymond Hettinger35631532009-01-09 03:58:09 +00001222- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1223 instead of ints (reducing its size from 4 to 8 times thereby reducing
1224 Python's overall memory).
1225
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001226- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1227 an existing .py counterpart, override the co_filename attributes of all
1228 code objects if the original filename is obsolete (which can happen if the
1229 file has been renamed, moved, or if it is accessed through different paths).
1230 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1231
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001232- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1233 one byte. Also fixes the meaning of len() so that it returns the number of
1234 items, rather than the size in bytes.
1235
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001236- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1237
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001238- Issue #4747: When the terminal does not use utf-8, executing a script with
1239 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1240
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001241- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001242 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001243
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001244- Issue #3680: Reference cycles created through a dict, set or deque iterator
1245 did not get collected.
1246
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001247- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1248 where the tp_hash and tp_dict slots are both NULL.
1249
Georg Brandlccc47b62008-12-28 11:44:14 +00001250- Issue #4759: None is now allowed as the first argument of
1251 bytearray.translate(). It was always allowed for bytes.translate().
1252
Skip Montanaro80072cb2008-12-23 03:51:14 +00001253- Added test case to ensure attempts to read from a file opened for writing
1254 fail.
1255
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001256- Issue #3106: Speedup some comparisons (str/str and int/int).
1257
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001258- Issue #2183: Simplify and optimize bytecode for list, dict and set
1259 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1260
Antoine Pitrou621601a2008-12-17 23:18:19 +00001261- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1262 print elapsed times, not only when some objects are uncollectable /
1263 unreachable. Original patch by Neil Schemenauer.
1264
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001265- Issue #3439: Add a bit_length method to int.
1266
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001267- Issue #2173: When getting device encoding, check that return value of
1268 nl_langinfo is not the empty string. This was causing silent build
1269 failures on OS X.
1270
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001271- Issue #4597: Fixed several opcodes that weren't always propagating
1272 exceptions.
1273
1274- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001275 context manager returns a value that cannot be converted to a bool.
1276
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001277- Issue #4445: Replace "sizeof(PyBytesObject)" with
1278 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1279 bytes instances. On a typical machine this saves 3 bytes of memory
1280 (on average) per allocation of a bytes instance.
1281
Christian Heimesa872de52008-12-05 08:26:55 +00001282- Issue #4533: File read operation was dreadfully slow due to a slowly
1283 growing read buffer. Fixed by using the same growth rate algorithm as
1284 Python 2.x.
1285
Antoine Pitrou5504e892008-12-06 21:27:53 +00001286- Issue #4509: Various issues surrounding resize of bytearray objects to
1287 which there are buffer exports (e.g. memoryview instances).
1288
Georg Brandlf9734072008-12-07 15:30:06 +00001289- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1290 method on file objects with closefd=False. The file descriptor is still
1291 kept open but the file object behaves like a closed file. The ``FileIO``
1292 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001293
Antoine Pitroubc420402008-12-07 20:14:49 +00001294- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1295 larger than 1.
1296
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001297- Issue #4748: Lambda generators no longer return a value.
1298
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001299- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1300
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001301- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1302 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1303 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1304 of using the replace error handler in PyUnicode_DecodeUTF8().
1305
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001306Library
1307-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001308
Tarek Ziadé3cc12f62009-07-22 09:03:01 +00001309- Issue #6545: Removed assert statements in distutils.Extension, so the
1310 behavior is similar when used with -O.
1311
Tarek Ziadé24448fa2009-07-11 11:01:14 +00001312- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
1313 "PyInit" prefix, rather than "init".
1314
Georg Brandld80344f2009-08-13 12:26:19 +00001315- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1316
Tarek Ziadé7e646002009-07-10 09:16:07 +00001317- Issue #6455: Fixed test_build_ext under win32.
1318
Tarek Ziadé35c88a82009-07-04 02:05:51 +00001319- Issue #6413: Fixed the log level in distutils.dist for announce.
1320
Tarek Ziadé385029f2009-07-03 08:37:27 +00001321- Issue #6403: Fixed package path usage in build_ext.
1322
Tarek Ziadé2c3de402009-06-29 16:46:14 +00001323- Issue #6365: Distutils build_ext inplace mode was copying the compiled
1324 extension in a subdirectory if the extension name had dots.
1325
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001326- Issue #6287: Added the license field in Distutils documentation.
1327
Tarek Ziadéff543362009-06-11 09:25:41 +00001328- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1329
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001330- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1331 in Makefiles. This prevents compile errors when using syntax like:
1332 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1333
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001334- Issue #6131: test_modulefinder leaked when run after test_distutils.
1335 Patch by Hirokazu Yamamoto.
1336
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001337- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1338
Vinay Sajipaffbd872009-06-11 10:11:47 +00001339- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001340 and tests on pywin32 by Tim Golden.
1341
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001342- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1343
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001344- Issue #6046: Fixed the library extension when distutils build_ext is used
1345 inplace. Initial patch by Roumen Petrov.
1346
Vinay Sajipaffbd872009-06-11 10:11:47 +00001347- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001348 subcommand.
1349
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001350- Issue #6022: a test file was created in the current working directory by
1351 test_get_outputs in Distutils.
1352
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001353- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1354 inplace option. Initial patch by kxroberto.
1355
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001356- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1357 for old-style extensions.
1358
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001359- Issue #5976: Fixed Distutils test_check_environ.
1360
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001361- Issue #5941: Distutils build_clib command was not working anymore because
1362 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1363 Makefile besides AR and make Distutils use it. Original patch by David
1364 Cournapeau.
1365
R. David Murrayb507d2e2009-04-29 15:34:32 +00001366- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1367
Vinay Sajipaffbd872009-06-11 10:11:47 +00001368- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001369 anymore.
1370
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001371- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001372 sysconfig.get_config_vars.
1373
Tarek Ziadé23336082009-04-25 12:39:56 +00001374- Issue #4951: Fixed failure in test_httpservers.
1375
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001376- Issue #5795: Fixed test_distutils failure on Debian ppc.
1377
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001378- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1379
Georg Brandl1f9fa312009-04-27 16:42:58 +00001380- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1381 a value in SafeConfigParser.
1382
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001383- Issue #5732: added a new command in Distutils: check.
1384
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001385- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001386 platforms. Initial patch by Paul Moore.
1387
Tarek Ziadéf6370502009-04-05 22:57:21 +00001388- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1389 Initial fix by Steven Bethard.
1390
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001391- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1392 Initial fix by Wayne Davison.
1393
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001394- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001395
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001396- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001397
Brett Cannonf47e84c2009-04-01 16:06:01 +00001398- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1399 instead of performing them in functions. Helps prevent import deadlocking in
1400 threads.
1401
R. David Murraye59482e2009-04-01 03:42:00 +00001402- Issue #2522: locale.format now checks its first argument to ensure it has
1403 been passed only one pattern, avoiding mysterious errors where it appeared
1404 that it was failing to do localization.
1405
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001406- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1407 Brandl.
1408
Antoine Pitrou350370c2009-03-14 00:13:13 +00001409- Issue #1222: locale.format() bug when the thousands separator is a space
1410 character.
1411
Tarek Ziadé516db942009-03-11 12:52:00 +00001412- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1413 Tim Golden.
1414
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001415- collections.deque() objects now have a read-only attribute called maxlen.
1416
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001417- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1418 it is has been populated and properly configured in order to prevent
1419 window flashing.
1420
Guilherme Polo56f5be52009-03-07 01:54:57 +00001421- Issue #4792: Prevent a segfault in _tkinter by using the
1422 guaranteed to be safe interp argument given to the PythonCmd in place of
1423 the Tcl interpreter taken from a PythonCmd_ClientData.
1424
1425- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1426
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001427- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1428 Original patch by Akira Kitada.
1429
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001430- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1431
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001432- Issue #5385: Fixed mmap crash after resize failure on windows.
1433
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001434- Issue #5179: Fixed subprocess handle leak on failure on windows.
1435
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001436- PEP 372: Added collections.OrderedDict().
1437
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001438- The _asdict() for method for namedtuples now returns an OrderedDict().
1439
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001440- configparser now defaults to using an ordered dictionary.
1441
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001442- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1443 import guess_extension`` was used.
1444
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001445- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1446 with same tagname but larger size than first map. (Windows)
1447
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001448- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1449 overrun.
1450
Tarek Ziadéf0721222009-02-28 10:16:43 +00001451- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1452 bdist_rpm command.
1453
1454- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1455
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001456- Issue #5052: make Distutils compatible with 2.3 again.
1457
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001458- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1459 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001460
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001461- Issue #5287: Add exception handling around findCaller() call to help out
1462 IronPython.
1463
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001464- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1465 The file was resized to wrong size.
1466
1467- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1468
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001469- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001470 from the package_data and the data_files metadata.
1471
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001472- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001473 support.TempdirManager, to avoid writing in the tests directory.
1474
Tarek Ziadé68c50952009-02-13 23:04:17 +00001475- Issue #4524: distutils build_script command failed with --with-suffix=3.
1476 Initial patch by Amaury Forgeot d'Arc.
1477
Tarek Ziadé811d6242009-02-13 22:26:15 +00001478- Issue #2461: added tests for distutils.util
1479
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001480- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1481 which inherited from numbers.py which did not have __slots__ defined. The
1482 numbers hierarchy now has its own __slots__ declarations.
1483
Antoine Pitroub353c122009-02-11 00:39:14 +00001484- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1485 encoding.
1486
Thomas Heller465c8022009-02-10 18:59:04 +00001487- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1488 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1489
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001490- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1491 under NT and OS2. Patch by Philip Jenvey.
1492
Brett Cannonbefb14f2009-02-10 02:10:16 +00001493- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1494 to be recreated. This avoids a timing hole thanks to the old reliance on the
1495 ctime of the files involved.
1496
Guilherme Polob681df42009-02-09 22:33:59 +00001497- Issue #5122: Synchronize tk load failure check to prevent a potential
1498 deadlock.
1499
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001500- Issue #1818: collections.namedtuple() now supports a keyword argument
1501 'rename' which lets invalid fieldnames be automatically converted to
1502 positional names in the form, _1, _2, ...
1503
Guilherme Poloae098992009-02-09 16:44:24 +00001504- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1505
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001506- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1507 public documented method ``ZipImporter.get_filename()``.
1508
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001509- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1510 the execution of packages by looking for and executing a ``__main__``
1511 submodule when a package name is supplied. Initial patch by Andi
1512 Vajda.
1513
Guilherme Polo491aee22009-02-06 23:16:11 +00001514- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1515 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1516 Tkapp_Call when calling from a thread different than the one that created
1517 the Tcl interpreter. Patch by Robert Hancock.
1518
Eric Smith0e5b5622009-02-06 01:32:42 +00001519- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1520 Ross Light.
1521
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001522- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001523 environment/Makefile. Patch by Douglas Greiman.
1524
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001525- Issue #1276768: The verbose option was not used in the code of
1526 distutils.file_util and distutils.dir_util.
1527
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001528- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001529 --enabled-shared activated. Initial patch by Dave Peterson.
1530
Guilherme Polo7f423952009-02-02 21:17:09 +00001531- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1532
Raymond Hettinger85602262009-02-03 04:19:10 +00001533- The shelve module now defaults to pickle protocol 3.
1534
Brett Cannone61426e2009-01-30 01:31:34 +00001535- Fix a bug in the trace module where a bytes object from co_lnotab had its
1536 items being passed through ord().
1537
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001538- Issue #2047: shutil.move() could believe that its destination path was
1539 inside its source path if it began with the same letters (e.g. "src" vs.
1540 "src.new").
1541
Guilherme Polo5f238482009-01-28 14:41:10 +00001542- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1543
Raymond Hettinger89e12962009-01-26 02:09:03 +00001544- Removed isSequenceType(), isMappingType, and isNumberType() from the
1545 operator module; use the abstract base classes instead. Also removed
1546 the repeat() function; use mul() instead.
1547
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001548- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001549 collections.namedtuple() relied on __name__ being defined.
1550
1551- Backport importlib from Python 3.1. Only the import_module() function has
1552 been backported to help facilitate transitions from 2.7 to 3.1.
1553
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001554- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1555 the tar file was overriden by the gztar one.
1556
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001557- Issue #4863: distutils.mwerkscompiler has been removed.
1558
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001559- Added a new itertools functions: combinations_with_replacement()
1560 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001561
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001562- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001563 allowed non-integer arguments.
1564
Jesse Noller41faa542009-01-25 03:45:53 +00001565- Fix and properly document the multiprocessing module's logging
1566 support, expose the internal levels and provide proper usage
1567 examples.
1568
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001569- Issue #1672332: fix unpickling of subnormal floats, which was
1570 producing a ValueError on some platforms.
1571
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001572- Issue #3881: Help Tcl to load even when started through the
1573 unreadable local symlink to "Program Files" on Vista.
1574
Martin v. Löwis59e47792009-01-24 14:10:07 +00001575- Issue #4710: Extract directories properly in the zipfile module;
1576 allow adding directories to a zipfile.
1577
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001578- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001579 --without-threads argument. When this occurs, _multiprocessing will
1580 be disabled, and not compiled.
1581
Antoine Pitrou08838b62009-01-21 00:55:13 +00001582- Issue #5008: When a file is opened in append mode with the new IO library,
1583 do an explicit seek to the end of file (so that e.g. tell() returns the
1584 file size rather than 0). This is consistent with the behaviour of the
1585 traditional 2.x file object.
1586
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001587- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1588 parameter was set.
1589
Mark Dickinson8dd05142009-01-20 20:43:58 +00001590- Issue #4842: Always append a trailing 'L' when pickling longs using
1591 pickle protocol 0. When reading, the 'L' is optional.
1592
Brett Cannonafccd632009-01-20 02:21:27 +00001593- Add the importlib package.
1594
Jesse Noller9a0fc972009-01-18 21:12:58 +00001595- Issue #4301: Patch the logging module to add processName support, remove
1596 _check_logger_class from multiprocessing.
1597
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001598- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001599 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001600
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001601- Issue #4959: inspect.formatargspec now works for keyword only arguments
1602 without defaults.
1603
Jesse Noller6214edd2009-01-19 16:23:53 +00001604- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1605 for *nix machines for negative handles and large int handles. Without this check
1606 it is possible to segfault the interpreter.
1607
Jesse Nollerb0516a62009-01-18 03:11:38 +00001608- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1609 in sharedctypes.py.
1610
1611- Issue #1225107: inspect.isclass() returned True for instances with a custom
1612 __getattr__.
1613
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001614- Issue #3826 and #4791: The socket module now closes the underlying socket
1615 appropriately when it is being used via socket.makefile() objects
1616 rather than delaying the close by waiting for garbage collection to do it.
1617
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001618- Issue #1696199: Add collections.Counter() for rapid and convenient
1619 counting.
1620
Antoine Pitrou308705e2009-01-10 16:22:51 +00001621- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1622
Thomas Heller5e4e4272009-01-08 09:34:20 +00001623- Issue #4867: Fixed a crash in ctypes when passing a string to a
1624 function without defining argtypes.
1625
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001626- Issue #4272: Add an optional argument to the GzipFile constructor to override
1627 the timestamp in the gzip stream. The default value remains the current time.
1628 The information can be used by e.g. gunzip when decompressing. Patch by
1629 Jacques Frechet.
1630
Mark Dickinson315a20a2009-01-04 21:34:18 +00001631- Restore Python 2.3 compatibility for decimal.py.
1632
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001633- Issue #3638: Remove functions from _tkinter module level that depend on
1634 TkappObject to work with multiple threads.
1635
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001636- Issue #4718: Adapt the wsgiref package so that it actually works with
1637 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001638 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1639
Raymond Hettinger771ed762009-01-03 19:20:32 +00001640- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1641 to the decimal module.
1642
Georg Brandl3a9b0622009-01-03 22:07:57 +00001643- Fractions.from_float() no longer loses precision for integers too big to
1644 cast as floats.
1645
Mark Dickinsonf9236412009-01-02 23:23:21 +00001646- Issue #4812: add missing underscore prefix to some internal-use-only
1647 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1648
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001649- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001650 did unnecessary work in the common case where no key function was specified.
1651
Georg Brandlb1441c72009-01-03 22:33:39 +00001652- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1653 the function is not a generator.
1654
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001655- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1656 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001657
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001658- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001659 function. Original patch by Thomas Heller.
1660
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001661- Issue #3767: Convert Tk object to string in tkColorChooser.
1662
Martin v. Löwise354d782008-12-29 16:03:04 +00001663- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1664
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001665- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1666 the code under test can be written inline if more practical.
1667
Georg Brandldb7b6b92009-01-01 15:53:14 +00001668- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1669 works as expected in the interactive environment.
1670
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001671- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1672 Gabriel Genellina.
1673
Antoine Pitrou180a3362008-12-14 16:36:46 +00001674- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1675 boundary.
1676
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001677- Issue #4223: inspect.getsource() will now correctly display source code
1678 for packages loaded via zipimport (or any other conformant PEP 302
1679 loader). Original patch by Alexander Belopolsky.
1680
1681- Issue #4201: pdb can now access and display source code loaded via
1682 zipimport (or any other conformant PEP 302 loader). Original patch by
1683 Alexander Belopolsky.
1684
1685- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1686 302 conformant loader) will now work correctly in most cases (they
1687 are still subject to the constraints that exist for all code running
1688 from inside a module loaded via a PEP 302 loader and attempting to
1689 perform IO operations based on __file__). Original patch by
1690 Alexander Belopolsky.
1691
1692- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1693 allows backporting to maintenance branches. Original patch by
1694 Alexander Belopolsky.
1695
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001696- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1697 a non-ASCII letter.
1698
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001699- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1700
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001701- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1702 codec cannot be found. This is for compatibility with the builtin behavior.
1703
Facundo Batista708d5812008-12-11 04:20:07 +00001704- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1705 give correct results in the case where one argument is a quiet NaN
1706 and the other is a finite number that requires rounding.
1707
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001708- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1709 libs.
1710
Georg Brandlf9734072008-12-07 15:30:06 +00001711- Added the subprocess.check_call_output() convenience function to get output
1712 from a subprocess on success or raise an exception on error.
1713
1714- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1715 support unusual filenames (such as those containing semi-colons) in
1716 Content-Disposition headers.
1717
1718- Issue #4384: Added logging integration with warnings module using
1719 captureWarnings(). This change includes a NullHandler which does nothing;
1720 it will be of use to library developers who want to avoid the "No handlers
1721 could be found for logger XXX" message which can appear if the library user
1722 doesn't configure logging.
1723
1724- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1725 exception.
1726
Georg Brandleee31162008-12-07 15:15:22 +00001727- Issue #4529: fix the parser module's validation of try-except-finally
1728 statements.
1729
1730- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1731 not a malformed option.
1732
1733- Added the subprocess.check_output() convenience function to get output
1734 from a subprocess on success or raise an exception on error.
1735
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001736- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1737 the corresponding tests now pass.
1738
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001739- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1740 it was calling the wrong open() function.
1741
Fred Drake9a0a65b2008-12-04 19:24:50 +00001742- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1743 support unusual filenames (such as those containing semi-colons) in
1744 Content-Disposition headers.
1745
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001746- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1747 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1748
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001749- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1750 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1751 and getservbyport().
1752
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001753- Windows locale mapping updated to Vista.
1754
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001755Tools/Demos
1756-----------
1757
Antoine Pitrou8a681222009-02-07 17:13:31 +00001758- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1759 and make it 2.6-compatible.
1760
Guilherme Poloa7d27972009-01-28 16:06:51 +00001761- Ttk demos added in Demo/tkinter/ttk/
1762
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001763- Issue #4677: add two list comprehension tests to pybench.
1764
Georg Brandlb1441c72009-01-03 22:33:39 +00001765
1766Build
1767-----
1768
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001769- Issue #6094: Build correctly with Subversion 1.7.
1770
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001771- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1772
Antoine Pitrou8966c992009-05-01 21:18:27 +00001773- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1774 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1775
Matthias Klose55708cc2009-04-30 08:06:49 +00001776- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001777 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001778
Matthias Klose906785c2009-02-22 23:18:38 +00001779- Link the shared python library with $(MODLIBS).
1780
Martin v. Löwis11f72102009-02-10 13:13:30 +00001781- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1782
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001783- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1784
Martin v. Löwise97637d2009-01-11 09:45:11 +00001785- Issue #4895: Use _strdup on Windows CE.
1786
Georg Brandlb1441c72009-01-03 22:33:39 +00001787- Issue #4472: "configure --enable-shared" now works on OSX
1788
1789- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1790
1791- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1792
1793- Issue #4289: Remove Cancel button from AdvancedDlg.
1794
1795- Issue #1656675: Register a drop handler for .py* files on Windows.
1796
1797- Issue #4120: Exclude manifest from extension modules in VS2008.
1798
1799- Issue #4091: Install pythonxy.dll in system32 again.
1800
1801- Issue #4018: Disable "for me" installations on Vista.
1802
1803- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1804
1805- Issue #4204: Fixed module build errors on FreeBSD 4.
1806
1807
1808C-API
1809-----
1810
Mark Dickinson21776072009-02-10 16:13:25 +00001811- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1812 for negative arguments. Previously, it raised TypeError.
1813
Georg Brandlb1441c72009-01-03 22:33:39 +00001814- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1815
1816- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1817 the GIL is released, or owned by another thread.
1818
1819- Issue #4122: On Windows, fix a compilation error when using the
1820 Py_UNICODE_ISSPACE macro in an extension module.
1821
1822
Mark Dickinsone675f082008-12-11 21:56:00 +00001823Extension Modules
1824-----------------
1825
Gregory P. Smith365a1862009-02-12 07:35:29 +00001826- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1827 supporting objects as input no matter how it was compiled (built in
1828 implementations or external openssl library).
1829
Mark Dickinson29500f62009-01-15 15:36:10 +00001830- Issue #4397: Fix occasional test_socket failure on OS X.
1831
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001832- Issue #4279: Fix build of parsermodule under Cygwin.
1833
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001834- Issue #4751: hashlib now releases the GIL when hashing large buffers
1835 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1836 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1837
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001838- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1839
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001840- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1841 or decompress several streams at once on multi-CPU systems. Also, the GIL
1842 is now released when computing the CRC of a large buffer. Patch by ebfe.
1843
Georg Brandlb1441c72009-01-03 22:33:39 +00001844- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1845
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001846- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1847
Mark Dickinsone675f082008-12-11 21:56:00 +00001848- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1849 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001850
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001851- Issue #4583: array.array would not always prohibit resizing when a buffer
1852 has been exported, resulting in an interpreter crash when accessing the
1853 buffer.
1854
Martin v. Löwis841edad2008-11-30 10:36:49 +00001855
Jack Diederiche0cbd692009-04-01 04:27:09 +00001856- Issue #5228: Make functools.partial objects can now be pickled.
1857
Guilherme Polo9de29af2009-01-28 20:40:48 +00001858Tests
1859-----
1860
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001861- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1862 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1863 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1864 skip the tests if DISPLAY is defined but can't be used.
1865
R. David Murraya21e4ca2009-03-31 23:16:50 +00001866- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001867 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001868 from test support, which does the conversion.
1869
Guilherme Polo9de29af2009-01-28 20:40:48 +00001870- Issue #5083: New 'gui' resource for regrtest.
1871
1872
Brett Cannon7317c1e2008-11-25 19:19:17 +00001873Docs
1874----
1875
Georg Brandl52b92cc2008-05-25 09:43:03 +00001876
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001877**(For information about older versions, consult the HISTORY file.)**