blob: 96fbbce89df312986f7f801b14c84d139a34c084 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000015- Issue #7085: Fix crash when importing some extensions in a thread
16 on MacOSX 10.6.
17
Philip Jenvey1309adb2009-11-17 03:43:14 +000018- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
19
Mark Dickinson6f1d0492009-11-15 13:58:49 +000020- Issue #6970: Remove redundant calls when comparing objects that don't
21 implement the relevant rich comparison methods.
22
Mark Dickinsond550c9a2009-11-15 09:57:26 +000023- Issue #7298: fixes for range and reversed(range(...)). Iteration
24 over range(a, b, c) incorrectly gave an empty iterator when a, b and
25 c fit in C long but the length of the range did not. Also fix
26 several cases where reversed(range(a, b, c)) gave wrong results, and
27 fix a refleak for reversed(range(a, b, c)) with large arguments.
28
Raymond Hettingerfc438512009-11-01 20:55:33 +000029- Issue #7244: itertools.izip_longest() no longer ignores exceptions
30 raised during the formation of an output tuple.
31
Benjamin Petersonb2e796a2009-10-28 21:59:39 +000032- Issue #3297: On wide unicode builds, do not split unicode characters into
33 surrogates.
34
Mark Dickinsonf9724882009-10-26 21:51:18 +000035- Remove length limitation when constructing a complex number from a string.
36
Mark Dickinson27a87a22009-10-25 20:43:34 +000037- Issue #1087418: Boost performance of bitwise operations for longs.
38
Antoine Pitroub6ef9632009-10-24 20:47:05 +000039- Support for AtheOS has been completely removed from the code base. It was
40 disabled since Python 3.0.
41
42- Support for several legacy threading libraries has been disabled. These
43 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
44 will be entirely removed in 3.3.
45
Raymond Hettingeraf7adad2009-10-22 11:22:50 +000046- Peephole constant folding had missed UNARY_POSITIVE.
47
Antoine Pitrou011bd622009-10-20 21:52:47 +000048- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
49 fixes the problem of some exceptions being thrown at shutdown when the
50 interpreter is killed. Patch by Adam Olsen.
51
Antoine Pitrou671141d2009-10-19 19:37:25 +000052- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +000053 support.
54
Vinay Sajip96d4aa32009-10-16 14:06:44 +000055- Issue #7120: logging: Removed import of multiprocessing which is causing
56 crash in GAE.
57
Neil Schemenauere441cb72009-10-14 19:14:38 +000058- Issue #1754094: Improve the stack depth calculation in the compiler.
59 There should be no other effect than a small decrease in memory use.
60 Patch by Christopher Tur Lesniewski-Laas.
61
Antoine Pitrou403ce782009-10-14 17:14:16 +000062- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +000063 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +000064
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +000065- Issue #1571184: The Unicode database contains properties for more characters.
66 The tables for code points representing numeric values, white spaces or line
67 breaks are now generated from the official Unicode Character Database files,
68 and include information from the Unihan.txt file.
69
Mark Dickinson2683ab02009-09-29 19:21:35 +000070- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
71 of producing internally inconsistent Python longs.
72
Philip Jenvey26713ca2009-09-29 04:57:18 +000073- Issue #6990: Fix threading.local subclasses leaving old state around
74 after a reference cycle GC which could be recycled by new locals.
75
Benjamin Peterson4905e802009-09-27 02:43:28 +000076- Issue #5460: Fix an ambiguity in the grammar.
77
Mark Dickinson3e124ae2009-09-22 21:47:24 +000078- Issue #1766304: Improve performance of membership tests on range objects.
79
Mark Dickinson0a1efd02009-09-16 21:23:34 +000080- Issue #6713: Improve performance of integer -> string conversions.
81
Mark Dickinson54a3db92009-09-06 10:19:23 +000082- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
83
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +000084- Issue #6750: A text file opened with io.open() could duplicate its output
85 when writing from multiple threads at the same time.
86
Benjamin Peterson14327712009-08-15 13:23:05 +000087- Issue #6707: dir() on an uninitialized module caused a crash.
88
Georg Brandl953152f2009-07-22 12:03:59 +000089- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
90
Raymond Hettingere805ecc2009-07-27 20:16:37 +000091- Issue #6573: set.union() stopped processing inputs if an instance of self
92 occurred in the argument chain.
93
R. David Murray046f7232009-07-19 02:22:05 +000094- Issue #6070: On posix platforms import no longer copies the execute bit
95 from the .py file to the .pyc file if it is set.
96
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000097- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
98
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000099- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
100 object, and not an int. Fix the corresponding error message, and the
101 documentation.
102
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000103- The deprecated PyCObject has been removed.
104
Mark Dickinson835a6c82009-06-30 15:45:17 +0000105- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
106 This fixes a build failure on HP-UX: int32_t and uint32_t are
107 defined in inttypes.h instead of stdint.h on that platform.
108
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000109- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000110 the 'surrogateescape' error handler, a string which contains unpaired
111 surrogates.
112
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000113- Issue #4856: Remove checks for win NT.
114
Benjamin Peterson466a7822009-07-02 21:44:01 +0000115C-API
116-----
117
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000118- Issue #Add '%lld' and '%llu' support to PyString_FromFormat(V)
119 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
120
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000121- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
122 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
123 should used for accessing the d_type and d_name members of structures
124 using PyDescr_COMMON.
125
126- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000127
Benjamin Peterson466a7822009-07-02 21:44:01 +0000128- The code flags for old __future__ features are now available again.
129
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000130- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
131 PyCode_Addr2Line().
132
133- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
134 object at a specified file, function, and line number.
135
136- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
137 ``const char *`` as the string is stored beyond the call.
138
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000139
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000140Library
141-------
142
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000143- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
144 ownership when the group is not forced, because the group may be different
145 from the user's group and inherit from its container when the test is run.
146
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000147- Issue #4486: When an exception has an explicit cause, do not print its
148 implicit context too. This affects the `traceback` module as well as
149 built-in exception printing.
150
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000151- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
152 Robert Collins.
153
Vinay Sajip03f6c112009-11-27 14:03:36 +0000154- Issue #7403: logging: Fixed possible race condition in lock creation.
155
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000156- Issue #6845: Add restart support for binary upload in ftplib. The
157 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
158 argument. Patch by Pablo Mouzo.
159
Antoine Pitroube6859d2009-11-25 23:02:32 +0000160- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
161 method returning the total number of seconds in the duration. Patch by
162 Brian Quinlan.
163
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000164- Issue #7133: SSL objects now support the new buffer API.
165
Senthil Kumaran758025c2009-11-23 19:02:52 +0000166- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
167
Lars Gustäbel9520a432009-11-22 18:48:49 +0000168- Issue #6123: tarfile now opens empty archives correctly and consistently
169 raises ReadError on empty files.
170
Tarek Ziadé26afd482009-11-19 05:39:00 +0000171- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
172 be 2.
173
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000174- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
175 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000176
Lars Gustäbel7b465392009-11-18 20:29:25 +0000177- Issue #7341: Close the internal file object in the TarFile constructor in
178 case of an error.
179
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000180- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
181 Windows box. Help provided by David Bolen.
182
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000183- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
184 TLS or SSL. Patch by Giampaolo Rodola'.
185
Nick Coghlan106274b2009-11-15 23:04:33 +0000186- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
187
Antoine Pitroub8108e22009-11-15 14:25:16 +0000188- Issue #4969: The mimetypes module now reads the MIME database from
189 the registry under Windows. Patch by Gabriel Genellina.
190
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000191- Issue #6816: runpy now provides a run_path function that allows Python code
192 to execute file paths that refer to source or compiled Python files as well
193 as zipfiles, directories and other valid sys.path entries that contain a
194 __main__.py file. This allows applications that run other Python scripts to
195 support the same flexibility as the CPython command line itself.
196
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000197- Issue #7318: multiprocessing now uses a timeout when it fails to establish
198 a connection with another process, rather than looping endlessly. The
199 default timeout is 20 seconds, which should be amply sufficient for
200 local connections.
201
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000202- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
203 unpickled. This fixes crashes under Windows when trying to run
204 test_multiprocessing in verbose mode.
205
Antoine Pitrou434736a2009-11-10 18:46:01 +0000206- Issue #3001: Add a C implementation of recursive locks which is used by
207 default when instantiating a `threading.RLock` object. This makes
208 recursive locks as fast as regular non-recursive locks (previously,
209 they were slower by 10x to 15x).
210
Antoine Pitroub0872682009-11-09 16:08:16 +0000211- Issue #7282: Fix a memory leak when an RLock was used in a thread other
212 than those started through `threading.Thread` (for example, using
213 `_thread.start_new_thread()`).
214
Brett Cannone52c9192009-11-07 23:55:05 +0000215- Issue #7187: Importlib would not silence the IOError raised when trying to
216 write new bytecode when it was made read-only.
217
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000218- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
219 which are part of a reference cycle.
220
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000221- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
222 objects on 64-bit systems. Patch by Michael Broghton.
223
Antoine Pitrou03f13442009-11-02 11:36:51 +0000224- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
225 a modification is done through it. This fixes inconsistencies and test
226 failures on systems with slightly bogus mtime behaviour.
227
Gregory P. Smith50467882009-11-01 18:42:17 +0000228- Issue #7246 & Issue #7208: getpass now properly flushes input before
229 reading from stdin so that existing input does not confuse it and
230 lead to incorrect entry or an IOError. It also properly flushes it
231 afterwards to avoid the terminal echoing the input afterwards on
232 OSes such as Solaris.
233
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000234- Issue #7233: Fix a number of two-argument Decimal methods to make
235 sure that they accept an int or long as the second argument. Also
236 fix buggy handling of large arguments (those with coefficient longer
237 than the current precision) in shift and rotate.
238
Lars Gustäbel1440df22009-10-29 09:39:47 +0000239- Issue #4750: Store the basename of the original filename in the gzip FNAME
240 header as required by RFC 1952.
241
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000242- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
243 Distutils.
244
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000245- Issue #7218: Fix test_site for win32, the directory comparison was done with
246 an uppercase.
247
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000248- Issue #7205: Fix a possible deadlock when using a BZ2File object from
249 several threads at once.
250
Vinay Sajip42ead482009-10-21 20:22:14 +0000251- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
252
Mark Dickinson06bb6742009-10-20 13:38:04 +0000253- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
254 larger than emax.
255
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000256- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
257 platforms, and assorted locale fixes by Derk Drukker.
258
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000259- Issue #5833: Fix extra space character in readline completion with the
260 GNU readline library version 6.0.
261
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000262- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000263
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000264- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
265 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000266
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000267- Issue #7082: When falling back to the MIME 'name' parameter, the
268 correct place to look for it is the Content-Type header.
269
Benjamin Petersond3afada2009-10-09 21:43:09 +0000270- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
271 builtin tokenizer.
272
Mark Dickinson56df8872009-10-07 19:23:50 +0000273- Issue #7048: Force Decimal.logb to round its result when that result
274 is too large to fit in the current precision.
275
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000276- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000277 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000278
Thomas Heller69b639f2009-09-18 20:08:39 +0000279- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
280 does now always result in NULL.
281
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000282- Issue #5042: Structure sub-subclass does now initialize correctly
283 with base class positional arguments.
284
Eric Smith81fd8042009-09-18 13:23:13 +0000285- Issue #6882: Import uuid creates zombies processes.
286
Matthias Klosef6b76b02009-09-13 15:18:53 +0000287- Issue #6635: Fix profiler printing usage message.
288
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000289- Issue #6856: Add a filter keyword argument to TarFile.add().
290
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000291- Issue #6888: pdb's alias command was broken when no arguments were given.
292
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000293- Issue #6857: Default format() alignment should be '>' for Decimal
294 instances.
295
Mark Dickinson825fce32009-09-07 18:08:12 +0000296- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
297 returning NaN or raising InvalidContext. Also, fix infinite recursion
298 in long(Decimal('nan')).
299
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000300- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
301 with no type specifier.
302
Thomas Heller8b939522009-09-04 18:24:41 +0000303- Issue #6239: ctypes.c_char_p return value must return bytes.
304
Chris Withers9c33cbf2009-09-04 17:04:16 +0000305- Issue #6838: Use a list to accumulate the value instead of
306 repeatedly concatenating strings in http.client's
307 HTTPResponse._read_chunked providing a significant speed increase
308 when downloading large files servend with a Transfer-Encoding of 'chunked'.
309
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000310- Trying to import a submodule from a module that is not a package, ImportError
311 should be raised, not AttributeError.
312
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000313- When the globals past to importlib.__import__() has __package__ set to None,
314 fall back to computing what __package__ should be instead of giving up.
315
Brett Cannon6afbaef2009-08-30 19:08:58 +0000316- Raise a TypeError when the name of a module to be imported for
317 importlib.__import__ is not a string (was raising an
318 AttributeError before).
319
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000320- Allow the fromlist passed into importlib.__import__ to be any iterable.
321
Brett Cannon4d75fc12009-08-30 03:47:36 +0000322- Have importlib raise ImportError if None is found in sys.modules.
323
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000324- Issue #6054: Do not normalize stored pathnames in tarfile.
325
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000326- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
327 payloads are now ordered by integer value rather than lexicographically.
328
Guilherme Polobcd03df2009-08-18 15:35:57 +0000329- Issue #1356969: Add missing info methods in tix.HList.
330
331- Issue #1522587: New constants and methods for the tix.Grid widget.
332
333- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
334
335- Issue #1119673: Do not override tkinter.Text methods when creating a
336 ScrolledText.
337
Gregory P. Smith01099702009-08-16 18:58:46 +0000338- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
339
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000340- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
341 the xview* and yview* methods.
342
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000343- Issue #6629: Fix a data corruption issue in the new I/O library, which could
344 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
345 "wb+" mode) after having buffered a certain amount of data for reading. This
346 bug was not present in the pure Python implementation.
347
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000348- Issue #6622: Fix "local variable 'secret' referenced before
349 assignment" bug in POP3.apop.
350
Mark Dickinson45f799f2009-08-02 20:08:54 +0000351- Issue #2715: Remove remnants of Carbon.File from binhex module.
352
Mark Dickinson345adc42009-08-02 10:14:23 +0000353- Issue #6595: The Decimal constructor now allows arbitrary Unicode
354 decimal digits in input, as recommended by the standard. Previously
355 it was restricted to accepting [0-9].
356
Jack Diederich36596a32009-07-26 22:23:04 +0000357- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
358 DO/DONT correctly.
359
Senthil Kumaran67305382009-07-26 04:46:00 +0000360- Issue #1424152: Fix for http.client, urllib.request to support SSL while
361 working through proxy. Original patch by Christopher Li, changes made by
362 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000363
Brett Cannon69194272009-07-20 04:23:48 +0000364- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
365 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
366 and PyPycLoader inherit from this class and provide implementations in
367 relation to other methods required by the ABCs.
368
Brett Cannon64ef00f2009-07-20 03:19:18 +0000369- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
370 the documentation said it did even though the code in PyLoader relied on the
371 abstract method required by ResourceLoader.
372
Mark Dickinson85424c92009-07-18 14:41:42 +0000373- Issue #6431: Make Fraction type return NotImplemented when it doesn't
374 know how to handle a comparison without loss of precision. Also add
375 correct handling of infinities and nans for comparisons with float.
376
Antoine Pitrouf3637322009-08-06 21:00:37 +0000377- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000378
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000379- Issue #6358: The exit status of a command started with os.popen() was
380 reported differently than it did with python 2.x.
381
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000382- Issue #6323: The pdb debugger did not exit when running a script with a
383 syntax error.
384
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000385- Issue #3392: The subprocess communicate() method no longer fails in select()
386 when file descriptors are large; communicate() now uses poll() when possible.
387
Antoine Pitrou54923952009-07-01 14:53:06 +0000388- Issue #6369: Fix an RLE decompression bug in the binhex module.
389
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000390- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
391
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000392- The deprecated function string.maketrans has been removed.
393
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000394- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
395 sys.path.
396
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000397- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
398
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000399Extension Modules
400-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000401
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000402- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
403
Mark Dickinson40714af2009-10-08 15:59:20 +0000404- Issue #7078: Set struct.__doc__ from _struct.__doc__.
405
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000406- Issue #3366: Add gamma function to math module.
407
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000408- Issue #6877: It is now possible to link the readline extension to the
409 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000410
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000411- Issue #6848: Fix curses module build failure on OS X 10.6.
412
Brett Cannon2f827382009-08-13 19:58:01 +0000413- Fix a segfault that could be triggered by expat with specially formed input.
414
Mark Dickinson1f268282009-07-28 17:22:36 +0000415- Issue #6561: '\d' in a regex now matches only characters with
416 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
417 matched characters with category 'No'.
418
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000419- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000420 failing due to the resize restriction in-place when the object has exported
421 buffers.
422
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000423- Issue #2389: Array objects are now pickled in a portable manner.
424
Martin v. Löwis95c46012009-06-28 09:36:14 +0000425Build
426-----
427
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000428- Issue #5792: Extend the short float repr support to x86 systems using
429 icc or suncc.
430
Mark Dickinsona25b1312009-10-31 10:18:44 +0000431- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
432 compiles correctly under gcc on x86-64. This fixes a reported
433 problem with the --with-tsc build on x86-64.
434
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000435- Issue #6802: Fix build issues on MacOSX 10.6
436
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000437- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
438
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000439- Issue 4601: 'make install' did not set the appropriate permissions on
440 directories.
441
Martin v. Löwis95c46012009-06-28 09:36:14 +0000442- Issue 5390: Add uninstall icon independent of whether file
443 extensions are installed.
444
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000445Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000446------------
447
Brett Cannon757df6e2009-08-30 04:00:12 +0000448- Document that importing a module that has None in sys.modules triggers an
449 ImportError.
450
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000451- Issue #6556: Fixed the Distutils configuration files location explanation
452 for Windows.
453
Brett Cannonb49c70c2009-07-15 04:08:33 +0000454Tests
455-----
456
R. David Murray35768ad2009-11-15 00:23:21 +0000457- Issue #7324: add a sanity check to regrtest argument parsing to
458 catch the case of an option with no handler.
459
R. David Murray7dc72cc2009-11-14 16:13:02 +0000460- Issue #7312: Add a -F flag to run the selected tests in a loop until
461 a test fails. Can be combined with -j.
462
Antoine Pitrou060cee22009-11-13 16:29:04 +0000463- Issue #6551: test_zipimport could import and then destroy some modules of
464 the encodings package, which would make other tests fail further down
465 the road because the internally cached encoders and decoders would point
466 to empty global variables.
467
Antoine Pitrou941ee882009-11-11 20:59:38 +0000468- Issue #7295: Do not use a hardcoded file name in test_tarfile.
469
Antoine Pitrou557934f2009-11-06 22:41:14 +0000470- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
471 primitives such as Lock, RLock, Condition, Event and Semaphore.
472
Brett Cannoncfed0292009-11-05 01:26:57 +0000473- Issue #7248 (part 2): Use a unique temporary directory for importlib source
474 tests instead of tempfile.tempdir. This prevents the tests from sharing state
475 between concurrent executions on the same system.
476
Brett Cannon0ae45112009-11-05 01:17:22 +0000477- Issue #7248: In importlib.test.source.util a try/finally block did not make
478 sure that some referenced objects actually were created in the block before
479 calling methods on the object.
480
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000481- Issue #7222: Make thread "reaping" more reliable so that reference
482 leak-chasing test runs give sensible results. The previous method of
483 reaping threads could return successfully while some Thread objects were
484 still referenced. This also introduces a new private function:
485 :func:`_thread._count()`.
486
R. David Murray27144602009-10-19 15:26:16 +0000487- Issue #7151: fixed regrtest -j so that output to stderr from a test no
488 longer runs the risk of causing the worker thread to fail.
489
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000490- Issue #7055: test___all__ now greedily detects all modules which have an
491 __all__ attribute, rather than using a hardcoded and incomplete list.
492
R. David Murray0bc11ae2009-10-18 22:18:17 +0000493- Issue #7058: Added save/restore for things like sys.argv and cwd to
494 runtest_inner in regrtest, with warnings if the called test modifies them,
495 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000496
Mark Dickinson2e304402009-10-04 18:43:54 +0000497- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
498
Brett Cannon3c273842009-07-20 00:14:29 +0000499- Fixed tests in importlib.test.source.test_abc_loader that were masking
500 the proper exceptions that should be raised for missing or improper code
501 object bytecode.
502
Brett Cannonb49c70c2009-07-15 04:08:33 +0000503- Removed importlib's custom test discovery code and switched to
504 unittest.TestLoader.discover().
505
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000506
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000507What's New in Python 3.1?
508=========================
509
510*Release date: 27-June-2009*
511
512Core and Builtins
513-----------------
514
Mark Dickinsonad195562009-06-24 19:01:32 +0000515- Issue #6334: Fix bug in range length calculation for ranges with
516 large arguments.
517
Raymond Hettinger159eac92009-06-23 20:38:54 +0000518- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
519 because it wasn't recognized as a sequence).
520
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000521Library
522-------
523
Georg Brandld07ac642009-08-13 07:50:57 +0000524- Issue #6126: Fixed pdb command-line usage.
525
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000526- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000527
Facundo Batista10706e22009-06-19 20:34:30 +0000528- Issue #6274: Fixed possible file descriptors leak in subprocess.py
529
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000530- Accessing io.StringIO.buffer now raises an AttributeError instead of
531 io.UnsupportedOperation.
532
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000533- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000534 (On Unix)
535
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000536- Issue #1202: zipfile module would cause a struct.error when attempting to
537 store files with a CRC32 > 2**31-1.
538
Matthias Kloseab2b7552009-06-22 13:05:52 +0000539Extension Modules
540-----------------
541
542- Issue #5590: Remove unused global variable in pyexpat extension.
543
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000544
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000545What's New in Python 3.1 Release Candidate 2?
546=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000547
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000548*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000549
550Core and Builtins
551-----------------
552
Raymond Hettinger94f55832009-06-12 18:40:16 +0000553- Fixed SystemError triggered by "range([], 1, -1)".
554
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000555- Issue #5924: On Windows, a large PYTHONPATH environment variable
556 (more than 255 characters) would be completely ignored.
557
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000558- Issue #4547: When debugging a very large function, it was not always
559 possible to update the lineno attribute of the current frame.
560
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000561- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000562 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000563
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000564Library
565-------
566
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000567- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000568 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000569 Popen. Tested under win32 to build the py-postgresql project.
570
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000571- Issue #6258: Support AMD64 in bdist_msi.
572
R. David Murray58641de2009-06-12 15:33:19 +0000573- Issue #6195: fixed doctest to no longer try to read 'source' data from
574 binary files.
575
Vinay Sajipaffbd872009-06-11 10:11:47 +0000576- Issue #5262: Fixed bug in next rollover time computation in
577 TimedRotatingFileHandler.
578
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000579- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
580 errors property. Additionally, the errors and encoding properties of StringIO
581 are always None now.
582
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000583- Issue #6137: The pickle module now translates module names when loading
584 or dumping pickles with a 2.x-compatible protocol, in order to make data
585 sharing and migration easier. This behaviour can be disabled using the
586 new `fix_imports` optional argument.
587
Raymond Hettinger40925d22009-06-04 18:32:39 +0000588- Removed the ipaddr module.
589
Georg Brandlb54d8012009-06-04 09:11:51 +0000590- Issue #3613: base64.{encode,decode}string are now called
591 base64.{encode,decode}bytes which reflects what type they accept and return.
592 The old names are still there as deprecated aliases.
593
Georg Brandl317185a2009-06-04 09:00:56 +0000594- Issue #5767: Remove sgmlop support from xmlrpc.client.
595
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000596- Issue #6150: Fix test_unicode on wide-unicode builds.
597
Antoine Pitrouc06de472009-05-30 21:04:26 +0000598- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
599 parameters.
600
Martin v. Löwis79b13872009-06-01 04:13:14 +0000601Windows
602-------
603
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000604- Issue #6221: Delete test registry key before running the test.
605
Martin v. Löwis79b13872009-06-01 04:13:14 +0000606- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
607
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000608C-API
609-----
610
611- Issue #5735: Python compiled with --with-pydebug should throw an
612 ImportError when trying to import modules compiled without
613 --with-pydebug, and vice-versa.
614
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000615
Brett Cannonc6d936e2009-06-07 20:09:53 +0000616Build
617-----
618
619- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
620 added LIBS to OS X framework builds.
621
Ronald Oussoren99aab652009-06-08 21:22:57 +0000622- Issue #5809: Specifying both --enable-framework and --enable-shared is
623 an error. Configure now explicity tells you about this.
624
625
Brett Cannonc6d936e2009-06-07 20:09:53 +0000626
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000627What's New in Python 3.1 release candidate 1?
628=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000629
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000630*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000631
632Core and Builtins
633-----------------
634
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000635- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
636 of the command line.
637
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000638- Issue #6012: Add cleanup support to O& argument parsing.
639
Eric Smith41669ca2009-05-23 14:23:22 +0000640- Issue #6089: Fixed str.format with certain invalid field specifiers
641 that would raise SystemError.
642
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000643- Issue #5982: staticmethod and classmethod now expose the wrapped
644 function with __func__.
645
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000646- Added support for multiple context managers in the same with-statement.
647 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000648
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000649- Issue #5829: complex("1e500") no longer raises OverflowError. This
650 makes it consistent with float("1e500") and interpretation of real
651 and imaginary literals.
652
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000653- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
654
R. David Murraydd226ea2009-05-13 12:27:21 +0000655- Issue #5994: the marshal module now has docstrings.
656
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000657- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
658 (1) inf and nan strings with trailing whitespace were incorrectly
659 rejected; (2) parsing of strings representing infinities and nans
660 was locale aware; and (3) the interpretation of fromhex('-nan')
661 didn't match that of float('-nan').
662
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000663Library
664-------
665
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000666- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
667
R. David Murrayfb123912009-05-28 18:19:00 +0000668- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
669
R. David Murray1f1b9d32009-05-27 20:56:59 +0000670- Issue #6121: pydoc now ignores leading and trailing spaces in the
671 argument to the 'help' function.
672
Georg Brandlfaf41492009-05-26 18:31:11 +0000673- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
674 arguments for strings with a space in them.
675
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000676- collections.namedtuple() was not working with the following field
677 names: cls, self, tuple, itemgetter, and property.
678
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000679- In unittest, using a skipping decorator on a class is now equivalent to
680 skipping every test on the class. The ClassTestSuite class has been removed.
681
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000682- Issue #6050: Don't fail extracting a directory from a zipfile if
683 the directory already exists.
684
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000685- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
686 than an int, which makes some operations possible under 64-bit Linux (e.g.
687 DN_MULTISHOT with F_NOTIFY).
688
Antoine Pitrou716c4442009-05-23 19:04:03 +0000689- Issue #5761: Add the name of the underlying file to the repr() of various
690 IO objects.
691
R. David Murraycaa27b72009-05-23 18:49:56 +0000692- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
693 by Musashi Tamura, tests by Marcin Bachry.
694
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000695- Issue #1983: Fix functions taking or returning a process identifier to use
696 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
697 a process identifier type wider than the standard C integer type.
698
R. David Murray87e20742009-05-23 01:30:26 +0000699- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
700 Patch by Farhan Ahmad, test by Marcin Bachry.
701
Antoine Pitrou6e610062009-05-15 17:04:50 +0000702- Issue #2116: Weak references and weak dictionaries now support copy()ing and
703 deepcopy()ing.
704
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000705- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
706
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000707- Issue #5918: Fix a crash in the parser module.
708
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000709- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
710
Antoine Pitroue4501852009-05-14 18:55:55 +0000711- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
712 library. This means, for example, that opening an UTF-16 text file in
713 append mode doesn't add a BOM at the end of the file if the file isn't
714 empty.
715
R. David Murray74b89242009-05-13 17:33:03 +0000716- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
717 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
718 corrects a pydoc regression.
719
R. David Murray99352742009-05-07 18:24:38 +0000720- Issue 5955: aifc's close method did not close the file it wrapped,
721 now it does. This also means getfp method now returns the real fp.
722
Benjamin Peterson932073a2009-05-23 16:14:33 +0000723Installation
724------------
725
726- Issue #6047: fullinstall has been removed because Python 3's executable will
727 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000728
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000729- Lib/smtpd.py is no longer installed as a script.
730
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000731Extension Modules
732-----------------
733
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000734- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000735
Martin v. Löwise23c8682009-05-29 16:01:34 +0000736- Issue #4873: Fix resource leaks in error cases of pwd and grp.
737
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000738- Issue #6093: Fix off-by-one error in locale.strxfrm.
739
Benjamin Peterson744af442009-05-23 18:51:49 +0000740- The _functools and _locale modules are now built into the libpython shared
741 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000742
Antoine Pitrou20327222009-05-24 20:39:11 +0000743Build
744-----
745
746- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
747 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
748 Clinton Roy.
749
Brett Cannon1262e7c2009-05-11 01:47:11 +0000750Tests
751-----
752
753- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
754 tests on darwin even when the OS was installed on a case-sensitive
755 filesystem. Also fixed tests that should not be run when
756 sys.dont_write_bytecode is true.
757
758
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000759What's New in Python 3.1 beta 1?
760================================
761
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000762*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000763
764Core and Builtins
765-----------------
766
Mark Dickinson865e01a2009-05-07 16:37:01 +0000767- Issue #5914: Add new C API function PyOS_string_to_double, and
768 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
769
Eric Smith741191f2009-05-06 13:08:15 +0000770- Issue #3382: float.__format__, complex.__format__, and %-formatting
771 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
772 affects nan -> NAN and inf -> INF.
773
Mark Hammond5a607a32009-05-06 08:04:54 +0000774- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
775 in all operations, including splitdrive, split, etc. splitunc() now issues
776 a PendingDeprecation warning.
777
Eric Smith63376222009-05-05 14:04:18 +0000778- Issue #5920: For float.__format__, change the behavior with the
779 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
780 to be like 'g' but with at least one decimal point and with a
781 default precision of 12. Previously, the behavior the same but with
782 a default precision of 6. This more closely matches str(), and
783 reduces surprises when adding alignment flags to the empty
784 presentation type. This also affects the new complex.__format__ in
785 the same way.
786
Martin v. Löwis011e8422009-05-05 04:43:17 +0000787- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
788
R. David Murrayb18500d2009-05-04 22:59:07 +0000789- Issue #5890: in subclasses of 'property' the __doc__ attribute was
790 shadowed by classtype's, even if it was None. property now
791 inserts the __doc__ into the subclass instance __dict__.
792
Antoine Pitrou244651a2009-05-04 18:56:13 +0000793- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
794 sequences. Patch by Nick Barnes and Victor Stinner.
795
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000796- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000797
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000798- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
799 received a new method, detach(). detach() disconnects the underlying stream
800 from the buffer or text IO and returns it.
801
Mark Dickinson33841c32009-05-01 15:37:04 +0000802- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
803 floats with absolute value over 1e50. Also remove length
804 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
805 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000806
Eric Smith741191f2009-05-06 13:08:15 +0000807- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000808 format(complex(1, 2./3), '.5') now produces a sensible result.
809
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000810- Issue #5864: Fix empty format code formatting for floats so that it
811 never gives more than the requested number of significant digits.
812
Eric Smith6dc46f52009-04-27 20:39:49 +0000813- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
814 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
815
Eric Smithcc32a112009-04-26 21:35:14 +0000816- Issue #5835: Deprecate PyOS_ascii_formatd.
817
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000818- Issue #4971: Fix titlecase for characters that are their own
819 titlecase, but not their own uppercase.
820
Benjamin Peterson193152c2009-04-25 01:08:45 +0000821- Issue #5283: Setting __class__ in __del__ caused a segfault.
822
Mark Dickinsonad476da2009-04-23 19:14:16 +0000823- Issue #5816: complex(repr(z)) now recovers z exactly, even when
824 z involves nans, infs or negative zeros.
825
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000826- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000827
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000828- Issue #1869 (and many duplicates): make round(x, n) correctly
829 rounded for a float x, by using the decimal <-> binary conversions
830 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
831 consistently agrees with format(x, '.2f').
832
Benjamin Petersonae937c02009-04-18 20:54:08 +0000833- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
834 some builtin types.
835
Eric Smith0923d1d2009-04-16 20:16:10 +0000836- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
837
Eric Smith35e84722009-04-16 20:21:28 +0000838- Issue #5515: str.format() type 'n' combined with commas and leading
839 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000840
841- Implement PEP 378, Format Specifier for Thousands Separator, for
842 floats.
843
Mark Dickinson3370cce2009-04-17 22:40:53 +0000844- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000845 1e11, not 1e12. This avoids printing 13 significant digits in
846 situations where only 12 of them are correct. Example problem
847 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
848 long time.)
849
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000850- Issue #1580: On most platforms, use a 'short' float repr: for a
851 finite float x, repr(x) now outputs a string based on the shortest
852 sequence of decimal digits that rounds to x. Previous behaviour was
853 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000854 Another minor difference is that the new repr switches to
855 exponential notation at 1e16 instead of the previous 1e17; this
856 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000857
858 There's a new sys attribute sys.float_repr_style, which takes
859 the value 'short' to indicate that we're using short float repr,
860 and 'legacy' if the short float repr isn't available for one
861 reason or another.
862
863 The float repr change involves incorporating David Gay's 'perfect
864 rounding' code into the Python core (it's in Python/dtoa.c). As a
865 secondary consequence, all string-to-float and float-to-string
866 conversions (including all float formatting operations) will be
867 correctly rounded on these platforms.
868
869 See issue 1580 discussions for details of platforms for which
870 this change does not apply.
871
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000872- Issue #5759: float() didn't call __float__ on str subclasses.
873
Georg Brandlabc38772009-04-12 15:51:51 +0000874- The string.maketrans() function is deprecated; there is a new static method
875 maketrans() on the bytes and bytearray classes. This removes confusion about
876 the types string.maketrans() is supposed to work with, and mirrors the
877 methods available on the str class.
878
R. David Murraydc6da8a2009-04-09 22:16:43 +0000879- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
880 its clarity and its speed.
881
Matthias Klose091c7b12009-04-07 13:24:27 +0000882- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
883 to avoid compiler warnings.
884
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000885- Issue #3739: The unicode-internal encoder now reports the number of characters
886 consumed like any other encoder (instead of the number of bytes).
887
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000888Installation
889------------
890
891- Issue #5756: Install idle and pydoc with a 3 suffix.
892
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000893Library
894-------
895
Martin v. Löwis403117a2009-05-24 19:19:17 +0000896- Issue #5311: bdist_msi can now build packages that do not depend on a
897 specific Python version.
898
Raymond Hettingereb816952009-05-29 01:22:18 +0000899- Issue #5150: IDLE's format menu now has an option to strip trailing
900 whitespace.
901
Vinay Sajipaffbd872009-06-11 10:11:47 +0000902- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000903 the right type checkings anymore.
904
Thomas Heller00cfc372009-05-05 19:04:40 +0000905- Issue #4875: On win32, ctypes.util.find_library does no longer
906 return directories.
907
Georg Brandl243ad662009-05-05 09:00:19 +0000908- Issue #5142: Add the ability to skip modules while stepping to pdb.
909
Georg Brandl991f9202009-05-05 08:31:54 +0000910- Issue #1309567: Fix linecache behavior of stripping subdirectories when
911 looking for files given by a relative filename.
912
Georg Brandleaa84ef2009-05-05 08:14:33 +0000913- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
914 turtle demos in Demo/turtle.
915
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000916- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
917 extracting a file to the root directory.
918
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000919- Issue #5913: os.listdir() should fail for empty path on windows.
920
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000921- Issue #5084: unpickling now interns the attribute names of pickled objects,
922 saving memory and avoiding growth in size of subsequent pickles. Proposal
923 and original patch by Jake McGuire.
924
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000925- The json module now works exclusively with str and not bytes.
926
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000927- Issue #3959: The ipaddr module has been added to the standard library.
928 Contributed by Google.
929
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000930- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
931 error when a named pipe is encountered, rather than blocking infinitely.
932
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000933- Issue #5857: tokenize.tokenize() now returns named tuples.
934
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000935- Issue #4305: ctypes should now build again on mipsel-linux-gnu
936
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000937- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
938 string is already in normalized form, by performing a quick check beforehand.
939 Original patch by Rauli Ruohonen.
940
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000941- Issue #5853: calling a function of the mimetypes module from several threads
942 at once could hit the recursion limit if the mimetypes database hadn't been
943 initialized before.
944
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000945- Issue #5854: Updated __all__ to include some missing names and remove some
946 names which should not be exported.
947
Thomas Heller34596a92009-04-24 20:50:00 +0000948- Issue #3102: All global symbols that the _ctypes extension defines
949 are now prefixed with 'Py' or '_ctypes'.
950
951- Issue #5041: ctypes does now allow pickling wide character.
952
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000953- Issue #5812: For the two-argument form of the Fraction constructor,
954 Fraction(m, n), m and n are permitted to be arbitrary Rational
955 instances.
956
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000957- Issue #5812: Fraction('1e6') is valid: more generally, any string
958 that's valid for float() is now valid for Fraction(), with the
959 exception of strings representing NaNs and infinities.
960
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000961- Issue #5734: BufferedRWPair was poorly tested and had several glaring
962 bugs. Patch by Brian Quinlan.
963
R. David Murray9e94ddf2009-04-13 17:06:33 +0000964- Issue #1161031: fix readwrite select flag handling: POLLPRI now
965 results in a handle_expt_event call, not handle_read_event, and POLLERR
966 and POLLNVAL now call handle_close, not handle_expt_event. Also,
967 dispatcher now has an 'ignore_log_types' attribute for suppressing
968 log messages, which is set to 'warning' by default.
969
Matthias Klosea3d29e82009-04-07 13:13:10 +0000970- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
971 new arguments introduced in 2.5.
972
Walter Dörwald1b08b302009-04-25 14:13:56 +0000973- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
974 makeunicodedata.py and regenerated the Unicode database (This fixes
975 u'\u1d79'.lower() == '\x00').
976
Matthias Klose535336f2009-04-07 13:49:45 +0000977Extension Modules
978-----------------
979
Benjamin Petersone04b6272009-05-04 22:25:21 +0000980- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
981 pwd.
982
Mark Dickinsonea835e72009-04-19 20:40:33 +0000983- Issue #5463: In struct module, remove deprecated float coercion
984 for integer type codes: struct.pack('L', 0.3) should now raise
985 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
986 The version number has been bumped to 0.3.
987
Matthias Klose535336f2009-04-07 13:49:45 +0000988- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
989 using Berkley-DB.
990
Nick Coghlan47384702009-04-22 16:13:36 +0000991Tests
992-----
993
994- Issue #5354: New test support function import_fresh_module() makes
995 it easy to import both normal and optimised versions of modules.
996 test_heapq and test_warnings have been adjusted to use it, tests for
997 other modules with both C and Python implementations in the stdlib
998 can be adjusted to use it over time.
999
Walter Dörwald4ba80132009-04-25 12:48:43 +00001000- Issue #5837: Certain sequences of calls to set() and unset() for
1001 support.EnvironmentVarGuard objects restored the environment variables
1002 incorrectly on __exit__.
1003
Benjamin Petersonb173f782009-05-05 22:31:58 +00001004C-API
1005-----
1006
1007- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1008
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001009
Benjamin Petersond1735892009-03-07 18:46:21 +00001010What's New in Python 3.1 alpha 2?
1011=================================
1012
Benjamin Peterson88f14352009-04-04 21:06:52 +00001013*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001014
1015Core and Builtins
1016-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001017
Eric Smith1e1d7d22009-04-03 22:25:33 +00001018- Implement PEP 378, Format Specifier for Thousands Separator, for
1019 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001020
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001021- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1022
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001023- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1024 byte, and the 'C' code only accepts a unicode character.
1025
Georg Brandl406b3d82009-04-11 21:24:37 +00001026- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1027 when hitting the recursion limit under certain circumstances.
1028
Brett Cannon0759dd62009-04-01 18:13:07 +00001029- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1030
Georg Brandlab6f2f62009-03-31 04:16:10 +00001031- Fix a segfault when running test_exceptions with coverage, caused by
1032 insufficient checks in accessors of Exception.__context__.
1033
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001034- Issue #5604: non-ASCII characters in module name passed to
1035 imp.find_module() were converted to UTF-8 while the path is
1036 converted to the default filesystem encoding, causing nonsense.
1037
Benjamin Peterson09832742009-03-26 17:15:46 +00001038- Issue #5126: str.isprintable() returned False for space characters.
1039
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001040- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1041 the end sys.path, for compatibility with the system install of Python.
1042
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001043- Issue #4688: Add a heuristic so that tuples and dicts containing only
1044 untrackable objects are not tracked by the garbage collector. This can
1045 reduce the size of collections and therefore the garbage collection overhead
1046 on long-running programs, depending on their particular use of datatypes.
1047
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001048- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1049 improve its performance. Long divisions and remainder operations
1050 are now between 50% and 150% faster.
1051
Mark Dickinsonbd792642009-03-18 20:06:12 +00001052- Issue #4258: Make it possible to use base 2**30 instead of base
1053 2**15 for the internal representation of integers, for performance
1054 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1055 --enable-big-digits option to configure, which overrides the
1056 default. Add sys.int_info structseq to provide information about
1057 the internal format.
1058
Mark Dickinson081dfee2009-03-18 14:47:41 +00001059- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1060 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1061 and sizeof(Py_UNICODE) == 2.
1062
Eric Smith8ec90442009-03-14 12:29:34 +00001063- Issue #5237: Allow auto-numbered fields in str.format(). For
1064 example: '{} {}'.format(1, 2) == '1 2'.
1065
Antoine Pitrou652e7072009-03-13 19:25:20 +00001066- Issue #5392: when a very low recursion limit was set, the interpreter would
1067 abort with a fatal error after the recursion limit was hit twice.
1068
Matthias Klose042f1332009-04-04 14:32:42 +00001069- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1070 short file names.
1071
Benjamin Petersond1735892009-03-07 18:46:21 +00001072Library
1073-------
1074
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001075- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001076 mailbox.MH.get_message().
1077
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001078- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1079 error substitutions from non-strict codec error callbacks in
1080 incrementalencoder and StreamWriter.
1081
Georg Brandl33c28812009-04-01 23:07:29 +00001082- Issue #5656: Fix the coverage reporting when running the test suite with
1083 the -T argument.
1084
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001085- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1086
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001087- Issue #5624: Fix the _winreg module name still used in several modules.
1088
Benjamin Petersona1b49012009-03-31 23:11:32 +00001089- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1090
Jesse Nollera9314042009-03-31 22:36:44 +00001091- Issue #5619: Multiprocessing children disobey the debug flag and causes
1092 popups on windows buildbots. Patch applied to work around this issue.
1093
Jesse Noller32d68c22009-03-31 18:48:42 +00001094- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1095
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001096- Issue #5387: Fixed mmap.move crash by integer overflow.
1097
Jesse Nollerf8d00852009-03-31 03:25:07 +00001098- Issue #5261: Patch multiprocessing's semaphore.c to support context
1099 manager use: "with multiprocessing.Lock()" works now.
1100
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001101- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1102 bytes already but the failure was non-obvious.
1103
Jesse Noller7af4ef82009-03-30 16:47:15 +00001104- Issue #5177: Multiprocessing's SocketListener class now uses
1105 socket.SO_REUSEADDR on all connections so that the user no longer needs
1106 to wait 120 seconds for the socket to expire.
1107
Benjamin Peterson48e24782009-03-29 13:02:52 +00001108- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1109
Antoine Pitrou66994e12009-03-29 00:45:26 +00001110- Issue #1174606: Calling read() without arguments of an unbounded file
1111 (typically /dev/zero under Unix) could crash the interpreter.
1112
Benjamin Peterson59406a92009-03-26 17:10:29 +00001113- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1114 io.BufferedRandom have been deprecated for removal in Python 3.2.
1115
Lars Gustäbel42e00912009-03-22 20:34:29 +00001116- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1117 forever on incomplete input. That caused tarfile.open() to hang when used
1118 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1119 partial bzip2 compressed data.
1120
Mark Dickinson79f52032009-03-17 23:12:51 +00001121- Issue #2110: Add support for thousands separator and 'n' type
1122 specifier to Decimal.__format__
1123
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001124- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1125 '>' alignment characters.
1126
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001127- The error detection code in FileIO.close() could fail to reflect the `errno`
1128 value, and report it as -1 instead.
1129
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001130- Issue #5016: FileIO.seekable() could return False if the file position
1131 was negative when truncated to a C int. Patch by Victor Stinner.
1132
Mark Dickinsonae681df2009-03-21 10:26:31 +00001133Extension Modules
1134-----------------
1135
Benjamin Petersone099b372009-04-04 17:09:35 +00001136- Issue #5391: mmap now deals exclusively with bytes.
1137
Mark Dickinsonae681df2009-03-21 10:26:31 +00001138- Issue #5463: In struct module, remove deprecated overflow wrapping
1139 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001140 struct.error instead of returning b'\xff\xff\xff\xff'. The
1141 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1142 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001143
Benjamin Petersond1735892009-03-07 18:46:21 +00001144
Benjamin Petersona58a6262009-03-07 16:34:40 +00001145What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001146================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001147
Benjamin Petersona58a6262009-03-07 16:34:40 +00001148*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001149
1150Core and Builtins
1151-----------------
1152
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001153- The io module has been reimplemented in C for speed.
1154
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001155- Give dict views an informative __repr__.
1156
Eric Smith5e5c0db2009-02-20 14:25:03 +00001157- Issue #5247: Improve error message when unknown format codes are
1158 used when using str.format() with str, int, and float arguments.
1159
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001160- Issue #5249: time.strftime returned malformed string when format string
1161 contained non ascii character on windows.
1162
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001163- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1164 source has already been decoded into str.
1165
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001166- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1167 rotating the object pointer by 4 bits to the right.
1168
Mark Dickinson87ec0852009-02-09 17:15:59 +00001169- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1170 it now forces its argument to double before testing for infinity.
1171
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001172- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1173 returns a non-number type.
1174
Benjamin Peterson87618552009-02-08 15:00:52 +00001175- Issue #5182: Removed memoryview.__str__.
1176
Mark Dickinsonc008a172009-02-01 13:59:22 +00001177- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1178 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001179 the type definition cmpfunc. The tp_compare slot has been renamed
1180 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001181
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001182- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001183 were suppressing all exceptions. These include list() and bytearray().
1184
Mark Dickinson1124e712009-01-28 21:25:58 +00001185- Issue #4707: round(x, n) now returns an integer if x is an integer.
1186 Previously it returned a float.
1187
Antoine Pitroub52ec782009-01-25 16:34:23 +00001188- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1189 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1190 evaluation loop is compiled with a new dispatch mechanism which gives
1191 speedups of up to 20%, depending on the system, on various benchmarks.
1192
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001193- Issue #4874: Most builtin decoders now reject unicode input.
1194
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001195- Issue #4842: Don't allow trailing 'L' when constructing an integer
1196 from a string.
1197
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001198- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1199
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001200- Issue #4838: When a module is deallocated, free the memory backing the
1201 optional module state data.
1202
Mark Dickinson8055afd2009-01-17 10:04:45 +00001203- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1204 type to (void *).
1205
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001206- Issue #4935: The overflow checking code in the expandtabs() method common
1207 to str, bytes and bytearray could be optimized away by the compiler, letting
1208 the interpreter segfault instead of raising an error.
1209
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001210- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1211 __next__ method.
1212
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001213- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1214 function no longer attempt to call the __long__ slot to convert an object
1215 to an integer. Only the __int__ and __trunc__ slots are examined.
1216
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001217- Issue #4893: Use NT threading on CE.
1218
Martin v. Löwisec59d042009-01-12 07:59:10 +00001219- Issue #4915: Port sysmodule to Windows CE.
1220
Antoine Pitrouab868312009-01-10 15:40:25 +00001221- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1222 common cases are optimized thanks to a dedicated fast path and a moderate
1223 amount of loop unrolling.
1224
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001225- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1226 collecting the oldest generation) so that allocating lots of objects without
1227 destroying them does not show quadratic performance. Based on a proposal by
1228 Martin von Löwis at
1229 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1230
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001231- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001232 having been closed (for instance, a read() call could return some
1233 previously buffered data). Patch by Dmitry Vasiliev.
1234
Antoine Pitrou05608432009-01-09 18:53:14 +00001235- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1236 flag to work properly. Furthermore, when specifying -u, the text stdout
1237 and stderr streams have line-by-line buffering enabled (the default being
1238 to buffer arbitrary chunks of data).
1239
Raymond Hettinger35631532009-01-09 03:58:09 +00001240- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1241 instead of ints (reducing its size from 4 to 8 times thereby reducing
1242 Python's overall memory).
1243
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001244- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1245 an existing .py counterpart, override the co_filename attributes of all
1246 code objects if the original filename is obsolete (which can happen if the
1247 file has been renamed, moved, or if it is accessed through different paths).
1248 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1249
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001250- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1251 one byte. Also fixes the meaning of len() so that it returns the number of
1252 items, rather than the size in bytes.
1253
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001254- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1255
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001256- Issue #4747: When the terminal does not use utf-8, executing a script with
1257 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1258
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001259- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001260 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001261
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001262- Issue #3680: Reference cycles created through a dict, set or deque iterator
1263 did not get collected.
1264
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001265- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1266 where the tp_hash and tp_dict slots are both NULL.
1267
Georg Brandlccc47b62008-12-28 11:44:14 +00001268- Issue #4759: None is now allowed as the first argument of
1269 bytearray.translate(). It was always allowed for bytes.translate().
1270
Skip Montanaro80072cb2008-12-23 03:51:14 +00001271- Added test case to ensure attempts to read from a file opened for writing
1272 fail.
1273
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001274- Issue #3106: Speedup some comparisons (str/str and int/int).
1275
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001276- Issue #2183: Simplify and optimize bytecode for list, dict and set
1277 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1278
Antoine Pitrou621601a2008-12-17 23:18:19 +00001279- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1280 print elapsed times, not only when some objects are uncollectable /
1281 unreachable. Original patch by Neil Schemenauer.
1282
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001283- Issue #3439: Add a bit_length method to int.
1284
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001285- Issue #2173: When getting device encoding, check that return value of
1286 nl_langinfo is not the empty string. This was causing silent build
1287 failures on OS X.
1288
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001289- Issue #4597: Fixed several opcodes that weren't always propagating
1290 exceptions.
1291
1292- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001293 context manager returns a value that cannot be converted to a bool.
1294
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001295- Issue #4445: Replace "sizeof(PyBytesObject)" with
1296 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1297 bytes instances. On a typical machine this saves 3 bytes of memory
1298 (on average) per allocation of a bytes instance.
1299
Christian Heimesa872de52008-12-05 08:26:55 +00001300- Issue #4533: File read operation was dreadfully slow due to a slowly
1301 growing read buffer. Fixed by using the same growth rate algorithm as
1302 Python 2.x.
1303
Antoine Pitrou5504e892008-12-06 21:27:53 +00001304- Issue #4509: Various issues surrounding resize of bytearray objects to
1305 which there are buffer exports (e.g. memoryview instances).
1306
Georg Brandlf9734072008-12-07 15:30:06 +00001307- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1308 method on file objects with closefd=False. The file descriptor is still
1309 kept open but the file object behaves like a closed file. The ``FileIO``
1310 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001311
Antoine Pitroubc420402008-12-07 20:14:49 +00001312- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1313 larger than 1.
1314
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001315- Issue #4748: Lambda generators no longer return a value.
1316
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001317- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1318
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001319- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1320 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1321 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1322 of using the replace error handler in PyUnicode_DecodeUTF8().
1323
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001324Library
1325-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001326
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001327- Issue #7071: byte-compilation in Distutils is now done with respect to
1328 sys.dont_write_bytecode.
1329
Tarek Ziadé978cca62009-10-24 13:38:27 +00001330- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1331 raised. Initial patch by Ezio Melotti.
1332
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001333- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001334 Distutils.
1335
Tarek Ziadé31d46072009-09-21 13:55:19 +00001336- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1337
Tarek Ziadé165581c2009-09-09 08:48:07 +00001338- Issue #6163: Fixed HP-UX runtime library dir options in
1339 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1340 Michael Haubenwallner.
1341
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001342- Issue #6693: New functions in site.py to get user/global site packages paths.
1343
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001344- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1345 opening an empty or very small file.
1346
1347- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001348 behavior is similar when used with -O.
1349
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001350- unittest has been split up into a package. All old names should still work.
1351
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001352- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1353 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1354 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1355 for the obsolete get_versions() functions.
1356
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001357- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1358
1359- Issue #6314: logging: Extra checks on the "level" argument in more places.
1360
1361- Issue #2622: Fixed an ImportError when importing email.messsage from a
1362 standalone application built with py2exe or py2app.
1363
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001364- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001365
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001366- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001367 attribute.
1368
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001369- Issue #6413: Fixed the log level in distutils.dist for announce.
1370
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001371- Issue #6403: Fixed package path usage in build_ext.
1372
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001373- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1374 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1375 descriptor errors
1376
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001377- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001378 extension in a subdirectory if the extension name had dots.
1379
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001380- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001381 unixcompiler. Original patch by Sridhar Ratnakumar.
1382
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001383- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1384 httplib, allowing the usage of http_proxy.
1385
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001386- Issue #6287: Added the license field in Distutils documentation.
1387
Tarek Ziadéff543362009-06-11 09:25:41 +00001388- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1389
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001390- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1391 in Makefiles. This prevents compile errors when using syntax like:
1392 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1393
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001394- Issue #6131: test_modulefinder leaked when run after test_distutils.
1395 Patch by Hirokazu Yamamoto.
1396
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001397- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1398
Vinay Sajipaffbd872009-06-11 10:11:47 +00001399- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001400 and tests on pywin32 by Tim Golden.
1401
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001402- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1403
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001404- Issue #6046: Fixed the library extension when distutils build_ext is used
1405 inplace. Initial patch by Roumen Petrov.
1406
Vinay Sajipaffbd872009-06-11 10:11:47 +00001407- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001408 subcommand.
1409
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001410- Issue #6022: a test file was created in the current working directory by
1411 test_get_outputs in Distutils.
1412
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001413- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1414 inplace option. Initial patch by kxroberto.
1415
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001416- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1417 for old-style extensions.
1418
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001419- Issue #5976: Fixed Distutils test_check_environ.
1420
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001421- Issue #5941: Distutils build_clib command was not working anymore because
1422 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1423 Makefile besides AR and make Distutils use it. Original patch by David
1424 Cournapeau.
1425
R. David Murrayb507d2e2009-04-29 15:34:32 +00001426- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1427
Vinay Sajipaffbd872009-06-11 10:11:47 +00001428- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001429 anymore.
1430
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001431- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001432 sysconfig.get_config_vars.
1433
Tarek Ziadé23336082009-04-25 12:39:56 +00001434- Issue #4951: Fixed failure in test_httpservers.
1435
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001436- Issue #5795: Fixed test_distutils failure on Debian ppc.
1437
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001438- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1439
Georg Brandl1f9fa312009-04-27 16:42:58 +00001440- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1441 a value in SafeConfigParser.
1442
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001443- Issue #5732: added a new command in Distutils: check.
1444
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001445- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001446 platforms. Initial patch by Paul Moore.
1447
Tarek Ziadéf6370502009-04-05 22:57:21 +00001448- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1449 Initial fix by Steven Bethard.
1450
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001451- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1452 Initial fix by Wayne Davison.
1453
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001454- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001455
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001456- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001457
Brett Cannonf47e84c2009-04-01 16:06:01 +00001458- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1459 instead of performing them in functions. Helps prevent import deadlocking in
1460 threads.
1461
R. David Murraye59482e2009-04-01 03:42:00 +00001462- Issue #2522: locale.format now checks its first argument to ensure it has
1463 been passed only one pattern, avoiding mysterious errors where it appeared
1464 that it was failing to do localization.
1465
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001466- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1467 Brandl.
1468
Antoine Pitrou350370c2009-03-14 00:13:13 +00001469- Issue #1222: locale.format() bug when the thousands separator is a space
1470 character.
1471
Tarek Ziadé516db942009-03-11 12:52:00 +00001472- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1473 Tim Golden.
1474
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001475- collections.deque() objects now have a read-only attribute called maxlen.
1476
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001477- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1478 it is has been populated and properly configured in order to prevent
1479 window flashing.
1480
Guilherme Polo56f5be52009-03-07 01:54:57 +00001481- Issue #4792: Prevent a segfault in _tkinter by using the
1482 guaranteed to be safe interp argument given to the PythonCmd in place of
1483 the Tcl interpreter taken from a PythonCmd_ClientData.
1484
1485- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1486
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001487- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1488 Original patch by Akira Kitada.
1489
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001490- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1491
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001492- Issue #5385: Fixed mmap crash after resize failure on windows.
1493
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001494- Issue #5179: Fixed subprocess handle leak on failure on windows.
1495
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001496- PEP 372: Added collections.OrderedDict().
1497
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001498- The _asdict() for method for namedtuples now returns an OrderedDict().
1499
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001500- configparser now defaults to using an ordered dictionary.
1501
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001502- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1503 import guess_extension`` was used.
1504
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001505- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1506 with same tagname but larger size than first map. (Windows)
1507
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001508- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1509 overrun.
1510
Tarek Ziadéf0721222009-02-28 10:16:43 +00001511- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1512 bdist_rpm command.
1513
1514- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1515
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001516- Issue #5052: make Distutils compatible with 2.3 again.
1517
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001518- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1519 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001520
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001521- Issue #5287: Add exception handling around findCaller() call to help out
1522 IronPython.
1523
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001524- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1525 The file was resized to wrong size.
1526
1527- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1528
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001529- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001530 from the package_data and the data_files metadata.
1531
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001532- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001533 support.TempdirManager, to avoid writing in the tests directory.
1534
Tarek Ziadé68c50952009-02-13 23:04:17 +00001535- Issue #4524: distutils build_script command failed with --with-suffix=3.
1536 Initial patch by Amaury Forgeot d'Arc.
1537
Tarek Ziadé811d6242009-02-13 22:26:15 +00001538- Issue #2461: added tests for distutils.util
1539
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001540- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1541 which inherited from numbers.py which did not have __slots__ defined. The
1542 numbers hierarchy now has its own __slots__ declarations.
1543
Antoine Pitroub353c122009-02-11 00:39:14 +00001544- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1545 encoding.
1546
Thomas Heller465c8022009-02-10 18:59:04 +00001547- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1548 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1549
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001550- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1551 under NT and OS2. Patch by Philip Jenvey.
1552
Brett Cannonbefb14f2009-02-10 02:10:16 +00001553- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1554 to be recreated. This avoids a timing hole thanks to the old reliance on the
1555 ctime of the files involved.
1556
Guilherme Polob681df42009-02-09 22:33:59 +00001557- Issue #5122: Synchronize tk load failure check to prevent a potential
1558 deadlock.
1559
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001560- Issue #1818: collections.namedtuple() now supports a keyword argument
1561 'rename' which lets invalid fieldnames be automatically converted to
1562 positional names in the form, _1, _2, ...
1563
Guilherme Poloae098992009-02-09 16:44:24 +00001564- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1565
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001566- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1567 public documented method ``ZipImporter.get_filename()``.
1568
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001569- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1570 the execution of packages by looking for and executing a ``__main__``
1571 submodule when a package name is supplied. Initial patch by Andi
1572 Vajda.
1573
Guilherme Polo491aee22009-02-06 23:16:11 +00001574- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1575 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1576 Tkapp_Call when calling from a thread different than the one that created
1577 the Tcl interpreter. Patch by Robert Hancock.
1578
Eric Smith0e5b5622009-02-06 01:32:42 +00001579- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1580 Ross Light.
1581
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001582- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001583 environment/Makefile. Patch by Douglas Greiman.
1584
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001585- Issue #1276768: The verbose option was not used in the code of
1586 distutils.file_util and distutils.dir_util.
1587
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001588- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001589 --enabled-shared activated. Initial patch by Dave Peterson.
1590
Guilherme Polo7f423952009-02-02 21:17:09 +00001591- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1592
Raymond Hettinger85602262009-02-03 04:19:10 +00001593- The shelve module now defaults to pickle protocol 3.
1594
Brett Cannone61426e2009-01-30 01:31:34 +00001595- Fix a bug in the trace module where a bytes object from co_lnotab had its
1596 items being passed through ord().
1597
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001598- Issue #2047: shutil.move() could believe that its destination path was
1599 inside its source path if it began with the same letters (e.g. "src" vs.
1600 "src.new").
1601
Guilherme Polo5f238482009-01-28 14:41:10 +00001602- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1603
Raymond Hettinger89e12962009-01-26 02:09:03 +00001604- Removed isSequenceType(), isMappingType, and isNumberType() from the
1605 operator module; use the abstract base classes instead. Also removed
1606 the repeat() function; use mul() instead.
1607
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001608- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001609 collections.namedtuple() relied on __name__ being defined.
1610
1611- Backport importlib from Python 3.1. Only the import_module() function has
1612 been backported to help facilitate transitions from 2.7 to 3.1.
1613
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001614- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1615 the tar file was overriden by the gztar one.
1616
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001617- Issue #4863: distutils.mwerkscompiler has been removed.
1618
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001619- Added a new itertools functions: combinations_with_replacement()
1620 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001621
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001622- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001623 allowed non-integer arguments.
1624
Jesse Noller41faa542009-01-25 03:45:53 +00001625- Fix and properly document the multiprocessing module's logging
1626 support, expose the internal levels and provide proper usage
1627 examples.
1628
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001629- Issue #1672332: fix unpickling of subnormal floats, which was
1630 producing a ValueError on some platforms.
1631
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001632- Issue #3881: Help Tcl to load even when started through the
1633 unreadable local symlink to "Program Files" on Vista.
1634
Martin v. Löwis59e47792009-01-24 14:10:07 +00001635- Issue #4710: Extract directories properly in the zipfile module;
1636 allow adding directories to a zipfile.
1637
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001638- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001639 --without-threads argument. When this occurs, _multiprocessing will
1640 be disabled, and not compiled.
1641
Antoine Pitrou08838b62009-01-21 00:55:13 +00001642- Issue #5008: When a file is opened in append mode with the new IO library,
1643 do an explicit seek to the end of file (so that e.g. tell() returns the
1644 file size rather than 0). This is consistent with the behaviour of the
1645 traditional 2.x file object.
1646
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001647- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1648 parameter was set.
1649
Mark Dickinson8dd05142009-01-20 20:43:58 +00001650- Issue #4842: Always append a trailing 'L' when pickling longs using
1651 pickle protocol 0. When reading, the 'L' is optional.
1652
Brett Cannonafccd632009-01-20 02:21:27 +00001653- Add the importlib package.
1654
Jesse Noller9a0fc972009-01-18 21:12:58 +00001655- Issue #4301: Patch the logging module to add processName support, remove
1656 _check_logger_class from multiprocessing.
1657
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001658- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001659 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001660
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001661- Issue #4959: inspect.formatargspec now works for keyword only arguments
1662 without defaults.
1663
Jesse Noller6214edd2009-01-19 16:23:53 +00001664- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1665 for *nix machines for negative handles and large int handles. Without this check
1666 it is possible to segfault the interpreter.
1667
Jesse Nollerb0516a62009-01-18 03:11:38 +00001668- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1669 in sharedctypes.py.
1670
1671- Issue #1225107: inspect.isclass() returned True for instances with a custom
1672 __getattr__.
1673
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001674- Issue #3826 and #4791: The socket module now closes the underlying socket
1675 appropriately when it is being used via socket.makefile() objects
1676 rather than delaying the close by waiting for garbage collection to do it.
1677
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001678- Issue #1696199: Add collections.Counter() for rapid and convenient
1679 counting.
1680
Antoine Pitrou308705e2009-01-10 16:22:51 +00001681- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1682
Thomas Heller5e4e4272009-01-08 09:34:20 +00001683- Issue #4867: Fixed a crash in ctypes when passing a string to a
1684 function without defining argtypes.
1685
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001686- Issue #4272: Add an optional argument to the GzipFile constructor to override
1687 the timestamp in the gzip stream. The default value remains the current time.
1688 The information can be used by e.g. gunzip when decompressing. Patch by
1689 Jacques Frechet.
1690
Mark Dickinson315a20a2009-01-04 21:34:18 +00001691- Restore Python 2.3 compatibility for decimal.py.
1692
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001693- Issue #3638: Remove functions from _tkinter module level that depend on
1694 TkappObject to work with multiple threads.
1695
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001696- Issue #4718: Adapt the wsgiref package so that it actually works with
1697 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001698 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1699
Raymond Hettinger771ed762009-01-03 19:20:32 +00001700- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1701 to the decimal module.
1702
Georg Brandl3a9b0622009-01-03 22:07:57 +00001703- Fractions.from_float() no longer loses precision for integers too big to
1704 cast as floats.
1705
Mark Dickinsonf9236412009-01-02 23:23:21 +00001706- Issue #4812: add missing underscore prefix to some internal-use-only
1707 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1708
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001709- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001710 did unnecessary work in the common case where no key function was specified.
1711
Georg Brandlb1441c72009-01-03 22:33:39 +00001712- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1713 the function is not a generator.
1714
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001715- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1716 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001717
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001718- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001719 function. Original patch by Thomas Heller.
1720
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001721- Issue #3767: Convert Tk object to string in tkColorChooser.
1722
Martin v. Löwise354d782008-12-29 16:03:04 +00001723- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1724
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001725- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1726 the code under test can be written inline if more practical.
1727
Georg Brandldb7b6b92009-01-01 15:53:14 +00001728- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1729 works as expected in the interactive environment.
1730
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001731- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1732 Gabriel Genellina.
1733
Antoine Pitrou180a3362008-12-14 16:36:46 +00001734- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1735 boundary.
1736
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001737- Issue #4223: inspect.getsource() will now correctly display source code
1738 for packages loaded via zipimport (or any other conformant PEP 302
1739 loader). Original patch by Alexander Belopolsky.
1740
1741- Issue #4201: pdb can now access and display source code loaded via
1742 zipimport (or any other conformant PEP 302 loader). Original patch by
1743 Alexander Belopolsky.
1744
1745- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1746 302 conformant loader) will now work correctly in most cases (they
1747 are still subject to the constraints that exist for all code running
1748 from inside a module loaded via a PEP 302 loader and attempting to
1749 perform IO operations based on __file__). Original patch by
1750 Alexander Belopolsky.
1751
1752- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1753 allows backporting to maintenance branches. Original patch by
1754 Alexander Belopolsky.
1755
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001756- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1757 a non-ASCII letter.
1758
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001759- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1760
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001761- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1762 codec cannot be found. This is for compatibility with the builtin behavior.
1763
Facundo Batista708d5812008-12-11 04:20:07 +00001764- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1765 give correct results in the case where one argument is a quiet NaN
1766 and the other is a finite number that requires rounding.
1767
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001768- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1769 libs.
1770
Georg Brandlf9734072008-12-07 15:30:06 +00001771- Added the subprocess.check_call_output() convenience function to get output
1772 from a subprocess on success or raise an exception on error.
1773
1774- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1775 support unusual filenames (such as those containing semi-colons) in
1776 Content-Disposition headers.
1777
1778- Issue #4384: Added logging integration with warnings module using
1779 captureWarnings(). This change includes a NullHandler which does nothing;
1780 it will be of use to library developers who want to avoid the "No handlers
1781 could be found for logger XXX" message which can appear if the library user
1782 doesn't configure logging.
1783
1784- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1785 exception.
1786
Georg Brandleee31162008-12-07 15:15:22 +00001787- Issue #4529: fix the parser module's validation of try-except-finally
1788 statements.
1789
1790- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1791 not a malformed option.
1792
1793- Added the subprocess.check_output() convenience function to get output
1794 from a subprocess on success or raise an exception on error.
1795
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001796- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1797 the corresponding tests now pass.
1798
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001799- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1800 it was calling the wrong open() function.
1801
Fred Drake9a0a65b2008-12-04 19:24:50 +00001802- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1803 support unusual filenames (such as those containing semi-colons) in
1804 Content-Disposition headers.
1805
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001806- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1807 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1808
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001809- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1810 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1811 and getservbyport().
1812
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001813- Windows locale mapping updated to Vista.
1814
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001815Tools/Demos
1816-----------
1817
Antoine Pitrou8a681222009-02-07 17:13:31 +00001818- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1819 and make it 2.6-compatible.
1820
Guilherme Poloa7d27972009-01-28 16:06:51 +00001821- Ttk demos added in Demo/tkinter/ttk/
1822
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001823- Issue #4677: add two list comprehension tests to pybench.
1824
Georg Brandlb1441c72009-01-03 22:33:39 +00001825
1826Build
1827-----
1828
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001829- Issue #6094: Build correctly with Subversion 1.7.
1830
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001831- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1832
Antoine Pitrou8966c992009-05-01 21:18:27 +00001833- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1834 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1835
Matthias Klose55708cc2009-04-30 08:06:49 +00001836- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001837 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001838
Matthias Klose906785c2009-02-22 23:18:38 +00001839- Link the shared python library with $(MODLIBS).
1840
Martin v. Löwis11f72102009-02-10 13:13:30 +00001841- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1842
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001843- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1844
Martin v. Löwise97637d2009-01-11 09:45:11 +00001845- Issue #4895: Use _strdup on Windows CE.
1846
Georg Brandlb1441c72009-01-03 22:33:39 +00001847- Issue #4472: "configure --enable-shared" now works on OSX
1848
1849- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1850
1851- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1852
1853- Issue #4289: Remove Cancel button from AdvancedDlg.
1854
1855- Issue #1656675: Register a drop handler for .py* files on Windows.
1856
1857- Issue #4120: Exclude manifest from extension modules in VS2008.
1858
1859- Issue #4091: Install pythonxy.dll in system32 again.
1860
1861- Issue #4018: Disable "for me" installations on Vista.
1862
1863- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1864
1865- Issue #4204: Fixed module build errors on FreeBSD 4.
1866
1867
1868C-API
1869-----
1870
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001871- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1872 NUL: Bogus TypeError detail string.
1873
Mark Dickinson21776072009-02-10 16:13:25 +00001874- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1875 for negative arguments. Previously, it raised TypeError.
1876
Georg Brandlb1441c72009-01-03 22:33:39 +00001877- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1878
1879- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1880 the GIL is released, or owned by another thread.
1881
1882- Issue #4122: On Windows, fix a compilation error when using the
1883 Py_UNICODE_ISSPACE macro in an extension module.
1884
1885
Mark Dickinsone675f082008-12-11 21:56:00 +00001886Extension Modules
1887-----------------
1888
Gregory P. Smith365a1862009-02-12 07:35:29 +00001889- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1890 supporting objects as input no matter how it was compiled (built in
1891 implementations or external openssl library).
1892
Mark Dickinson29500f62009-01-15 15:36:10 +00001893- Issue #4397: Fix occasional test_socket failure on OS X.
1894
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001895- Issue #4279: Fix build of parsermodule under Cygwin.
1896
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001897- Issue #4751: hashlib now releases the GIL when hashing large buffers
1898 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1899 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1900
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001901- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1902
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001903- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1904 or decompress several streams at once on multi-CPU systems. Also, the GIL
1905 is now released when computing the CRC of a large buffer. Patch by ebfe.
1906
Georg Brandlb1441c72009-01-03 22:33:39 +00001907- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1908
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001909- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1910
Mark Dickinsone675f082008-12-11 21:56:00 +00001911- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1912 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001913
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001914- Issue #4583: array.array would not always prohibit resizing when a buffer
1915 has been exported, resulting in an interpreter crash when accessing the
1916 buffer.
1917
Martin v. Löwis841edad2008-11-30 10:36:49 +00001918
Jack Diederiche0cbd692009-04-01 04:27:09 +00001919- Issue #5228: Make functools.partial objects can now be pickled.
1920
Guilherme Polo9de29af2009-01-28 20:40:48 +00001921Tests
1922-----
1923
Antoine Pitrou88909542009-06-29 13:54:42 +00001924- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1925 regression tests in parallel, shortening the total runtime.
1926
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001927- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1928 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1929 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1930 skip the tests if DISPLAY is defined but can't be used.
1931
R. David Murraya21e4ca2009-03-31 23:16:50 +00001932- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001933 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001934 from test support, which does the conversion.
1935
Guilherme Polo9de29af2009-01-28 20:40:48 +00001936- Issue #5083: New 'gui' resource for regrtest.
1937
1938
Brett Cannon7317c1e2008-11-25 19:19:17 +00001939Docs
1940----
1941
Georg Brandl52b92cc2008-05-25 09:43:03 +00001942
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001943**(For information about older versions, consult the HISTORY file.)**