blob: dee6df416d93b19df7dfaea237053c9bf84562d3 [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
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +000015- Issue #7466: segmentation fault when the garbage collector is called
16 in the middle of populating a tuple. Patch by Florent Xicluna.
17
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +000018- Issue #7419: setlocale() could crash the interpreter on Windows when called
19 with invalid values.
20
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +000021- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
22 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
23
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000024- Issue #7085: Fix crash when importing some extensions in a thread
25 on MacOSX 10.6.
26
Philip Jenvey1309adb2009-11-17 03:43:14 +000027- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
28
Mark Dickinson6f1d0492009-11-15 13:58:49 +000029- Issue #6970: Remove redundant calls when comparing objects that don't
30 implement the relevant rich comparison methods.
31
Mark Dickinsond550c9a2009-11-15 09:57:26 +000032- Issue #7298: fixes for range and reversed(range(...)). Iteration
33 over range(a, b, c) incorrectly gave an empty iterator when a, b and
34 c fit in C long but the length of the range did not. Also fix
35 several cases where reversed(range(a, b, c)) gave wrong results, and
36 fix a refleak for reversed(range(a, b, c)) with large arguments.
37
Raymond Hettingerfc438512009-11-01 20:55:33 +000038- Issue #7244: itertools.izip_longest() no longer ignores exceptions
39 raised during the formation of an output tuple.
40
Benjamin Petersonb2e796a2009-10-28 21:59:39 +000041- Issue #3297: On wide unicode builds, do not split unicode characters into
42 surrogates.
43
Mark Dickinsonf9724882009-10-26 21:51:18 +000044- Remove length limitation when constructing a complex number from a string.
45
Mark Dickinson27a87a22009-10-25 20:43:34 +000046- Issue #1087418: Boost performance of bitwise operations for longs.
47
Antoine Pitroub6ef9632009-10-24 20:47:05 +000048- Support for AtheOS has been completely removed from the code base. It was
49 disabled since Python 3.0.
50
51- Support for several legacy threading libraries has been disabled. These
52 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
53 will be entirely removed in 3.3.
54
Raymond Hettingeraf7adad2009-10-22 11:22:50 +000055- Peephole constant folding had missed UNARY_POSITIVE.
56
Antoine Pitrou011bd622009-10-20 21:52:47 +000057- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
58 fixes the problem of some exceptions being thrown at shutdown when the
59 interpreter is killed. Patch by Adam Olsen.
60
Antoine Pitrou671141d2009-10-19 19:37:25 +000061- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +000062 support.
63
Vinay Sajip96d4aa32009-10-16 14:06:44 +000064- Issue #7120: logging: Removed import of multiprocessing which is causing
65 crash in GAE.
66
Neil Schemenauere441cb72009-10-14 19:14:38 +000067- Issue #1754094: Improve the stack depth calculation in the compiler.
68 There should be no other effect than a small decrease in memory use.
69 Patch by Christopher Tur Lesniewski-Laas.
70
Antoine Pitrou403ce782009-10-14 17:14:16 +000071- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +000072 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +000073
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +000074- Issue #1571184: The Unicode database contains properties for more characters.
75 The tables for code points representing numeric values, white spaces or line
76 breaks are now generated from the official Unicode Character Database files,
77 and include information from the Unihan.txt file.
78
Mark Dickinson2683ab02009-09-29 19:21:35 +000079- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
80 of producing internally inconsistent Python longs.
81
Philip Jenvey26713ca2009-09-29 04:57:18 +000082- Issue #6990: Fix threading.local subclasses leaving old state around
83 after a reference cycle GC which could be recycled by new locals.
84
Benjamin Peterson4905e802009-09-27 02:43:28 +000085- Issue #5460: Fix an ambiguity in the grammar.
86
Mark Dickinson3e124ae2009-09-22 21:47:24 +000087- Issue #1766304: Improve performance of membership tests on range objects.
88
Mark Dickinson0a1efd02009-09-16 21:23:34 +000089- Issue #6713: Improve performance of integer -> string conversions.
90
Mark Dickinson54a3db92009-09-06 10:19:23 +000091- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
92
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +000093- Issue #6750: A text file opened with io.open() could duplicate its output
94 when writing from multiple threads at the same time.
95
Benjamin Peterson14327712009-08-15 13:23:05 +000096- Issue #6707: dir() on an uninitialized module caused a crash.
97
Georg Brandl953152f2009-07-22 12:03:59 +000098- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
99
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000100- Issue #6573: set.union() stopped processing inputs if an instance of self
101 occurred in the argument chain.
102
R. David Murray046f7232009-07-19 02:22:05 +0000103- Issue #6070: On posix platforms import no longer copies the execute bit
104 from the .py file to the .pyc file if it is set.
105
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000106- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
107
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000108- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
109 object, and not an int. Fix the corresponding error message, and the
110 documentation.
111
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000112- The deprecated PyCObject has been removed.
113
Mark Dickinson835a6c82009-06-30 15:45:17 +0000114- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
115 This fixes a build failure on HP-UX: int32_t and uint32_t are
116 defined in inttypes.h instead of stdint.h on that platform.
117
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000118- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000119 the 'surrogateescape' error handler, a string which contains unpaired
120 surrogates.
121
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000122- Issue #4856: Remove checks for win NT.
123
Benjamin Peterson466a7822009-07-02 21:44:01 +0000124C-API
125-----
126
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000127- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
128 in PyArg_ParseTupleAndKeywords.
129
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000130- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000131 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
132
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000133- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
134 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
135 should used for accessing the d_type and d_name members of structures
136 using PyDescr_COMMON.
137
138- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000139
Benjamin Peterson466a7822009-07-02 21:44:01 +0000140- The code flags for old __future__ features are now available again.
141
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000142- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
143 PyCode_Addr2Line().
144
145- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
146 object at a specified file, function, and line number.
147
148- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
149 ``const char *`` as the string is stored beyond the call.
150
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000151
Benjamin Peterson05159c42009-12-03 03:01:27 +0000152- Issue #2422: When compiled with the ``--with-valgrind`` option, the
153 pymalloc allocator will be automatically disabled when running under
154 Valgrind. This gives improved memory leak detection when running
155 under Valgrind, while taking advantage of pymalloc at other times.
156
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000157Library
158-------
159
Lars Gustäbel365aff32009-12-13 11:42:29 +0000160- Issue #7357: tarfile no longer suppresses fatal extraction errors by
161 default.
162
R. David Murraye8dc2582009-12-10 02:08:06 +0000163- Issue #5949: added check for correct lineends in input from IMAP server
164 in imaplib.
165
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000166- Add a reverse() method to collections.deque().
167
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000168- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
169
Antoine Pitrou781eba72009-12-08 15:57:31 +0000170- Issue #6986: Fix crash in the JSON C accelerator when called with the
171 wrong parameter types. Patch by Victor Stinner.
172
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000173- Issue #7457: added a read_pkg_file method to
174 distutils.dist.DistributionMetadata.
175
Vinay Sajip540f2152009-12-06 17:57:11 +0000176- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
177 TLS with authentication credentials.
178
Tarek Ziadédf872d42009-12-06 09:28:17 +0000179- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
180 generated in Distutils. Patch by Stephen Emslie.
181
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000182- Issue #4120: Drop reference to CRT from manifest when building extensions with
183 msvc9compiler.
184
Antoine Pitroub7572f02009-12-02 20:46:48 +0000185- Issue #7333: The `posix` module gains an `initgroups()` function providing
186 access to the initgroups(3) C library call on Unix systems which implement
187 it. Patch by Jean-Paul Calderone.
188
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000189- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
190 ownership when the group is not forced, because the group may be different
191 from the user's group and inherit from its container when the test is run.
192
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000193- Issue #4486: When an exception has an explicit cause, do not print its
194 implicit context too. This affects the `traceback` module as well as
195 built-in exception printing.
196
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000197- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
198 Robert Collins.
199
Vinay Sajip03f6c112009-11-27 14:03:36 +0000200- Issue #7403: logging: Fixed possible race condition in lock creation.
201
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000202- Issue #6845: Add restart support for binary upload in ftplib. The
203 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
204 argument. Patch by Pablo Mouzo.
205
Antoine Pitroube6859d2009-11-25 23:02:32 +0000206- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
207 method returning the total number of seconds in the duration. Patch by
208 Brian Quinlan.
209
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000210- Issue #7133: SSL objects now support the new buffer API.
211
Senthil Kumaran758025c2009-11-23 19:02:52 +0000212- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
213
Lars Gustäbel9520a432009-11-22 18:48:49 +0000214- Issue #6123: tarfile now opens empty archives correctly and consistently
215 raises ReadError on empty files.
216
Tarek Ziadé26afd482009-11-19 05:39:00 +0000217- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
218 be 2.
219
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000220- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
221 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000222
Lars Gustäbel7b465392009-11-18 20:29:25 +0000223- Issue #7341: Close the internal file object in the TarFile constructor in
224 case of an error.
225
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000226- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
227 Windows box. Help provided by David Bolen.
228
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000229- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
230 TLS or SSL. Patch by Giampaolo Rodola'.
231
Nick Coghlan106274b2009-11-15 23:04:33 +0000232- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
233
Antoine Pitroub8108e22009-11-15 14:25:16 +0000234- Issue #4969: The mimetypes module now reads the MIME database from
235 the registry under Windows. Patch by Gabriel Genellina.
236
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000237- Issue #6816: runpy now provides a run_path function that allows Python code
238 to execute file paths that refer to source or compiled Python files as well
239 as zipfiles, directories and other valid sys.path entries that contain a
240 __main__.py file. This allows applications that run other Python scripts to
241 support the same flexibility as the CPython command line itself.
242
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000243- Issue #7318: multiprocessing now uses a timeout when it fails to establish
244 a connection with another process, rather than looping endlessly. The
245 default timeout is 20 seconds, which should be amply sufficient for
246 local connections.
247
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000248- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
249 unpickled. This fixes crashes under Windows when trying to run
250 test_multiprocessing in verbose mode.
251
Antoine Pitrou434736a2009-11-10 18:46:01 +0000252- Issue #3001: Add a C implementation of recursive locks which is used by
253 default when instantiating a `threading.RLock` object. This makes
254 recursive locks as fast as regular non-recursive locks (previously,
255 they were slower by 10x to 15x).
256
Antoine Pitroub0872682009-11-09 16:08:16 +0000257- Issue #7282: Fix a memory leak when an RLock was used in a thread other
258 than those started through `threading.Thread` (for example, using
259 `_thread.start_new_thread()`).
260
Brett Cannone52c9192009-11-07 23:55:05 +0000261- Issue #7187: Importlib would not silence the IOError raised when trying to
262 write new bytecode when it was made read-only.
263
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000264- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
265 which are part of a reference cycle.
266
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000267- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
268 objects on 64-bit systems. Patch by Michael Broghton.
269
Antoine Pitrou03f13442009-11-02 11:36:51 +0000270- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
271 a modification is done through it. This fixes inconsistencies and test
272 failures on systems with slightly bogus mtime behaviour.
273
Gregory P. Smith50467882009-11-01 18:42:17 +0000274- Issue #7246 & Issue #7208: getpass now properly flushes input before
275 reading from stdin so that existing input does not confuse it and
276 lead to incorrect entry or an IOError. It also properly flushes it
277 afterwards to avoid the terminal echoing the input afterwards on
278 OSes such as Solaris.
279
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000280- Issue #7233: Fix a number of two-argument Decimal methods to make
281 sure that they accept an int or long as the second argument. Also
282 fix buggy handling of large arguments (those with coefficient longer
283 than the current precision) in shift and rotate.
284
Lars Gustäbel1440df22009-10-29 09:39:47 +0000285- Issue #4750: Store the basename of the original filename in the gzip FNAME
286 header as required by RFC 1952.
287
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000288- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
289 Distutils.
290
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000291- Issue #7218: Fix test_site for win32, the directory comparison was done with
292 an uppercase.
293
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000294- Issue #7205: Fix a possible deadlock when using a BZ2File object from
295 several threads at once.
296
Vinay Sajip42ead482009-10-21 20:22:14 +0000297- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
298
Mark Dickinson06bb6742009-10-20 13:38:04 +0000299- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
300 larger than emax.
301
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000302- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
303 platforms, and assorted locale fixes by Derk Drukker.
304
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000305- Issue #5833: Fix extra space character in readline completion with the
306 GNU readline library version 6.0.
307
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000308- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000309
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000310- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
311 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000312
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000313- Issue #7082: When falling back to the MIME 'name' parameter, the
314 correct place to look for it is the Content-Type header.
315
Benjamin Petersond3afada2009-10-09 21:43:09 +0000316- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
317 builtin tokenizer.
318
Mark Dickinson56df8872009-10-07 19:23:50 +0000319- Issue #7048: Force Decimal.logb to round its result when that result
320 is too large to fit in the current precision.
321
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000322- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000323 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000324
Thomas Heller69b639f2009-09-18 20:08:39 +0000325- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
326 does now always result in NULL.
327
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000328- Issue #5042: Structure sub-subclass does now initialize correctly
329 with base class positional arguments.
330
Eric Smith81fd8042009-09-18 13:23:13 +0000331- Issue #6882: Import uuid creates zombies processes.
332
Matthias Klosef6b76b02009-09-13 15:18:53 +0000333- Issue #6635: Fix profiler printing usage message.
334
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000335- Issue #6856: Add a filter keyword argument to TarFile.add().
336
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000337- Issue #6888: pdb's alias command was broken when no arguments were given.
338
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000339- Issue #6857: Default format() alignment should be '>' for Decimal
340 instances.
341
Mark Dickinson825fce32009-09-07 18:08:12 +0000342- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
343 returning NaN or raising InvalidContext. Also, fix infinite recursion
344 in long(Decimal('nan')).
345
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000346- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
347 with no type specifier.
348
Thomas Heller8b939522009-09-04 18:24:41 +0000349- Issue #6239: ctypes.c_char_p return value must return bytes.
350
Chris Withers9c33cbf2009-09-04 17:04:16 +0000351- Issue #6838: Use a list to accumulate the value instead of
352 repeatedly concatenating strings in http.client's
353 HTTPResponse._read_chunked providing a significant speed increase
354 when downloading large files servend with a Transfer-Encoding of 'chunked'.
355
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000356- Trying to import a submodule from a module that is not a package, ImportError
357 should be raised, not AttributeError.
358
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000359- When the globals past to importlib.__import__() has __package__ set to None,
360 fall back to computing what __package__ should be instead of giving up.
361
Brett Cannon6afbaef2009-08-30 19:08:58 +0000362- Raise a TypeError when the name of a module to be imported for
363 importlib.__import__ is not a string (was raising an
364 AttributeError before).
365
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000366- Allow the fromlist passed into importlib.__import__ to be any iterable.
367
Brett Cannon4d75fc12009-08-30 03:47:36 +0000368- Have importlib raise ImportError if None is found in sys.modules.
369
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000370- Issue #6054: Do not normalize stored pathnames in tarfile.
371
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000372- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
373 payloads are now ordered by integer value rather than lexicographically.
374
Guilherme Polobcd03df2009-08-18 15:35:57 +0000375- Issue #1356969: Add missing info methods in tix.HList.
376
377- Issue #1522587: New constants and methods for the tix.Grid widget.
378
379- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
380
381- Issue #1119673: Do not override tkinter.Text methods when creating a
382 ScrolledText.
383
Gregory P. Smith01099702009-08-16 18:58:46 +0000384- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
385
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000386- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
387 the xview* and yview* methods.
388
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000389- Issue #6629: Fix a data corruption issue in the new I/O library, which could
390 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
391 "wb+" mode) after having buffered a certain amount of data for reading. This
392 bug was not present in the pure Python implementation.
393
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000394- Issue #6622: Fix "local variable 'secret' referenced before
395 assignment" bug in POP3.apop.
396
Mark Dickinson45f799f2009-08-02 20:08:54 +0000397- Issue #2715: Remove remnants of Carbon.File from binhex module.
398
Mark Dickinson345adc42009-08-02 10:14:23 +0000399- Issue #6595: The Decimal constructor now allows arbitrary Unicode
400 decimal digits in input, as recommended by the standard. Previously
401 it was restricted to accepting [0-9].
402
Jack Diederich36596a32009-07-26 22:23:04 +0000403- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
404 DO/DONT correctly.
405
Senthil Kumaran67305382009-07-26 04:46:00 +0000406- Issue #1424152: Fix for http.client, urllib.request to support SSL while
407 working through proxy. Original patch by Christopher Li, changes made by
408 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000409
Brett Cannon69194272009-07-20 04:23:48 +0000410- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
411 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
412 and PyPycLoader inherit from this class and provide implementations in
413 relation to other methods required by the ABCs.
414
Brett Cannon64ef00f2009-07-20 03:19:18 +0000415- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
416 the documentation said it did even though the code in PyLoader relied on the
417 abstract method required by ResourceLoader.
418
Mark Dickinson85424c92009-07-18 14:41:42 +0000419- Issue #6431: Make Fraction type return NotImplemented when it doesn't
420 know how to handle a comparison without loss of precision. Also add
421 correct handling of infinities and nans for comparisons with float.
422
Antoine Pitrouf3637322009-08-06 21:00:37 +0000423- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000424
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000425- Issue #6358: The exit status of a command started with os.popen() was
426 reported differently than it did with python 2.x.
427
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000428- Issue #6323: The pdb debugger did not exit when running a script with a
429 syntax error.
430
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000431- Issue #3392: The subprocess communicate() method no longer fails in select()
432 when file descriptors are large; communicate() now uses poll() when possible.
433
Antoine Pitrou54923952009-07-01 14:53:06 +0000434- Issue #6369: Fix an RLE decompression bug in the binhex module.
435
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000436- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
437
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000438- The deprecated function string.maketrans has been removed.
439
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000440- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
441 sys.path.
442
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000443- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
444
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000445Extension Modules
446-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000447
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000448- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
449
Mark Dickinson40714af2009-10-08 15:59:20 +0000450- Issue #7078: Set struct.__doc__ from _struct.__doc__.
451
Mark Dickinson05d2e082009-12-11 20:17:17 +0000452- Issue #3366: Add gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000453
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000454- Issue #6877: It is now possible to link the readline extension to the
455 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000456
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000457- Issue #6848: Fix curses module build failure on OS X 10.6.
458
Brett Cannon2f827382009-08-13 19:58:01 +0000459- Fix a segfault that could be triggered by expat with specially formed input.
460
Mark Dickinson1f268282009-07-28 17:22:36 +0000461- Issue #6561: '\d' in a regex now matches only characters with
462 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
463 matched characters with category 'No'.
464
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000465- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000466 failing due to the resize restriction in-place when the object has exported
467 buffers.
468
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000469- Issue #2389: Array objects are now pickled in a portable manner.
470
Martin v. Löwis95c46012009-06-28 09:36:14 +0000471Build
472-----
473
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000474- Issue #5792: Extend the short float repr support to x86 systems using
475 icc or suncc.
476
Mark Dickinsona25b1312009-10-31 10:18:44 +0000477- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
478 compiles correctly under gcc on x86-64. This fixes a reported
479 problem with the --with-tsc build on x86-64.
480
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000481- Issue #6802: Fix build issues on MacOSX 10.6
482
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000483- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
484
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000485- Issue 4601: 'make install' did not set the appropriate permissions on
486 directories.
487
Martin v. Löwis95c46012009-06-28 09:36:14 +0000488- Issue 5390: Add uninstall icon independent of whether file
489 extensions are installed.
490
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000491Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000492------------
493
Brett Cannon757df6e2009-08-30 04:00:12 +0000494- Document that importing a module that has None in sys.modules triggers an
495 ImportError.
496
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000497- Issue #6556: Fixed the Distutils configuration files location explanation
498 for Windows.
499
Brett Cannonb49c70c2009-07-15 04:08:33 +0000500Tests
501-----
502
R. David Murrayba311052009-12-04 00:09:14 +0000503- Issue #7431: use TESTFN in test_linecache instead of trying to create a
504 file in the Lib/test directory, which might be read-only for the
505 user running the tests.
506
R. David Murray35768ad2009-11-15 00:23:21 +0000507- Issue #7324: add a sanity check to regrtest argument parsing to
508 catch the case of an option with no handler.
509
R. David Murray7dc72cc2009-11-14 16:13:02 +0000510- Issue #7312: Add a -F flag to run the selected tests in a loop until
511 a test fails. Can be combined with -j.
512
Antoine Pitrou060cee22009-11-13 16:29:04 +0000513- Issue #6551: test_zipimport could import and then destroy some modules of
514 the encodings package, which would make other tests fail further down
515 the road because the internally cached encoders and decoders would point
516 to empty global variables.
517
Antoine Pitrou941ee882009-11-11 20:59:38 +0000518- Issue #7295: Do not use a hardcoded file name in test_tarfile.
519
Antoine Pitrou557934f2009-11-06 22:41:14 +0000520- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
521 primitives such as Lock, RLock, Condition, Event and Semaphore.
522
Brett Cannoncfed0292009-11-05 01:26:57 +0000523- Issue #7248 (part 2): Use a unique temporary directory for importlib source
524 tests instead of tempfile.tempdir. This prevents the tests from sharing state
525 between concurrent executions on the same system.
526
Brett Cannon0ae45112009-11-05 01:17:22 +0000527- Issue #7248: In importlib.test.source.util a try/finally block did not make
528 sure that some referenced objects actually were created in the block before
529 calling methods on the object.
530
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000531- Issue #7222: Make thread "reaping" more reliable so that reference
532 leak-chasing test runs give sensible results. The previous method of
533 reaping threads could return successfully while some Thread objects were
534 still referenced. This also introduces a new private function:
535 :func:`_thread._count()`.
536
R. David Murray27144602009-10-19 15:26:16 +0000537- Issue #7151: fixed regrtest -j so that output to stderr from a test no
538 longer runs the risk of causing the worker thread to fail.
539
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000540- Issue #7055: test___all__ now greedily detects all modules which have an
541 __all__ attribute, rather than using a hardcoded and incomplete list.
542
R. David Murray0bc11ae2009-10-18 22:18:17 +0000543- Issue #7058: Added save/restore for things like sys.argv and cwd to
544 runtest_inner in regrtest, with warnings if the called test modifies them,
545 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000546
Mark Dickinson2e304402009-10-04 18:43:54 +0000547- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
548
Brett Cannon3c273842009-07-20 00:14:29 +0000549- Fixed tests in importlib.test.source.test_abc_loader that were masking
550 the proper exceptions that should be raised for missing or improper code
551 object bytecode.
552
Brett Cannonb49c70c2009-07-15 04:08:33 +0000553- Removed importlib's custom test discovery code and switched to
554 unittest.TestLoader.discover().
555
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000556
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000557What's New in Python 3.1?
558=========================
559
560*Release date: 27-June-2009*
561
562Core and Builtins
563-----------------
564
Mark Dickinsonad195562009-06-24 19:01:32 +0000565- Issue #6334: Fix bug in range length calculation for ranges with
566 large arguments.
567
Raymond Hettinger159eac92009-06-23 20:38:54 +0000568- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
569 because it wasn't recognized as a sequence).
570
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000571Library
572-------
573
Georg Brandld07ac642009-08-13 07:50:57 +0000574- Issue #6126: Fixed pdb command-line usage.
575
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000576- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000577
Facundo Batista10706e22009-06-19 20:34:30 +0000578- Issue #6274: Fixed possible file descriptors leak in subprocess.py
579
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000580- Accessing io.StringIO.buffer now raises an AttributeError instead of
581 io.UnsupportedOperation.
582
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000583- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000584 (On Unix)
585
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000586- Issue #1202: zipfile module would cause a struct.error when attempting to
587 store files with a CRC32 > 2**31-1.
588
Matthias Kloseab2b7552009-06-22 13:05:52 +0000589Extension Modules
590-----------------
591
592- Issue #5590: Remove unused global variable in pyexpat extension.
593
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000594
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000595What's New in Python 3.1 Release Candidate 2?
596=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000597
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000598*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000599
600Core and Builtins
601-----------------
602
Raymond Hettinger94f55832009-06-12 18:40:16 +0000603- Fixed SystemError triggered by "range([], 1, -1)".
604
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000605- Issue #5924: On Windows, a large PYTHONPATH environment variable
606 (more than 255 characters) would be completely ignored.
607
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000608- Issue #4547: When debugging a very large function, it was not always
609 possible to update the lineno attribute of the current frame.
610
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000611- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000612 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000613
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000614Library
615-------
616
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000617- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000618 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000619 Popen. Tested under win32 to build the py-postgresql project.
620
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000621- Issue #6258: Support AMD64 in bdist_msi.
622
R. David Murray58641de2009-06-12 15:33:19 +0000623- Issue #6195: fixed doctest to no longer try to read 'source' data from
624 binary files.
625
Vinay Sajipaffbd872009-06-11 10:11:47 +0000626- Issue #5262: Fixed bug in next rollover time computation in
627 TimedRotatingFileHandler.
628
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000629- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
630 errors property. Additionally, the errors and encoding properties of StringIO
631 are always None now.
632
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000633- Issue #6137: The pickle module now translates module names when loading
634 or dumping pickles with a 2.x-compatible protocol, in order to make data
635 sharing and migration easier. This behaviour can be disabled using the
636 new `fix_imports` optional argument.
637
Raymond Hettinger40925d22009-06-04 18:32:39 +0000638- Removed the ipaddr module.
639
Georg Brandlb54d8012009-06-04 09:11:51 +0000640- Issue #3613: base64.{encode,decode}string are now called
641 base64.{encode,decode}bytes which reflects what type they accept and return.
642 The old names are still there as deprecated aliases.
643
Georg Brandl317185a2009-06-04 09:00:56 +0000644- Issue #5767: Remove sgmlop support from xmlrpc.client.
645
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000646- Issue #6150: Fix test_unicode on wide-unicode builds.
647
Antoine Pitrouc06de472009-05-30 21:04:26 +0000648- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
649 parameters.
650
Martin v. Löwis79b13872009-06-01 04:13:14 +0000651Windows
652-------
653
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000654- Issue #6221: Delete test registry key before running the test.
655
Martin v. Löwis79b13872009-06-01 04:13:14 +0000656- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
657
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000658C-API
659-----
660
661- Issue #5735: Python compiled with --with-pydebug should throw an
662 ImportError when trying to import modules compiled without
663 --with-pydebug, and vice-versa.
664
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000665
Brett Cannonc6d936e2009-06-07 20:09:53 +0000666Build
667-----
668
669- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
670 added LIBS to OS X framework builds.
671
Ronald Oussoren99aab652009-06-08 21:22:57 +0000672- Issue #5809: Specifying both --enable-framework and --enable-shared is
673 an error. Configure now explicity tells you about this.
674
675
Brett Cannonc6d936e2009-06-07 20:09:53 +0000676
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000677What's New in Python 3.1 release candidate 1?
678=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000679
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000680*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000681
682Core and Builtins
683-----------------
684
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000685- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
686 of the command line.
687
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000688- Issue #6012: Add cleanup support to O& argument parsing.
689
Eric Smith41669ca2009-05-23 14:23:22 +0000690- Issue #6089: Fixed str.format with certain invalid field specifiers
691 that would raise SystemError.
692
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000693- Issue #5982: staticmethod and classmethod now expose the wrapped
694 function with __func__.
695
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000696- Added support for multiple context managers in the same with-statement.
697 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000698
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000699- Issue #5829: complex("1e500") no longer raises OverflowError. This
700 makes it consistent with float("1e500") and interpretation of real
701 and imaginary literals.
702
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000703- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
704
R. David Murraydd226ea2009-05-13 12:27:21 +0000705- Issue #5994: the marshal module now has docstrings.
706
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000707- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
708 (1) inf and nan strings with trailing whitespace were incorrectly
709 rejected; (2) parsing of strings representing infinities and nans
710 was locale aware; and (3) the interpretation of fromhex('-nan')
711 didn't match that of float('-nan').
712
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000713Library
714-------
715
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000716- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
717
R. David Murrayfb123912009-05-28 18:19:00 +0000718- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
719
R. David Murray1f1b9d32009-05-27 20:56:59 +0000720- Issue #6121: pydoc now ignores leading and trailing spaces in the
721 argument to the 'help' function.
722
Georg Brandlfaf41492009-05-26 18:31:11 +0000723- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
724 arguments for strings with a space in them.
725
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000726- collections.namedtuple() was not working with the following field
727 names: cls, self, tuple, itemgetter, and property.
728
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000729- In unittest, using a skipping decorator on a class is now equivalent to
730 skipping every test on the class. The ClassTestSuite class has been removed.
731
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000732- Issue #6050: Don't fail extracting a directory from a zipfile if
733 the directory already exists.
734
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000735- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
736 than an int, which makes some operations possible under 64-bit Linux (e.g.
737 DN_MULTISHOT with F_NOTIFY).
738
Antoine Pitrou716c4442009-05-23 19:04:03 +0000739- Issue #5761: Add the name of the underlying file to the repr() of various
740 IO objects.
741
R. David Murraycaa27b72009-05-23 18:49:56 +0000742- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
743 by Musashi Tamura, tests by Marcin Bachry.
744
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000745- Issue #1983: Fix functions taking or returning a process identifier to use
746 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
747 a process identifier type wider than the standard C integer type.
748
R. David Murray87e20742009-05-23 01:30:26 +0000749- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
750 Patch by Farhan Ahmad, test by Marcin Bachry.
751
Antoine Pitrou6e610062009-05-15 17:04:50 +0000752- Issue #2116: Weak references and weak dictionaries now support copy()ing and
753 deepcopy()ing.
754
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000755- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
756
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000757- Issue #5918: Fix a crash in the parser module.
758
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000759- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
760
Antoine Pitroue4501852009-05-14 18:55:55 +0000761- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
762 library. This means, for example, that opening an UTF-16 text file in
763 append mode doesn't add a BOM at the end of the file if the file isn't
764 empty.
765
R. David Murray74b89242009-05-13 17:33:03 +0000766- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
767 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
768 corrects a pydoc regression.
769
R. David Murray99352742009-05-07 18:24:38 +0000770- Issue 5955: aifc's close method did not close the file it wrapped,
771 now it does. This also means getfp method now returns the real fp.
772
Benjamin Peterson932073a2009-05-23 16:14:33 +0000773Installation
774------------
775
776- Issue #6047: fullinstall has been removed because Python 3's executable will
777 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000778
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000779- Lib/smtpd.py is no longer installed as a script.
780
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000781Extension Modules
782-----------------
783
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000784- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000785
Martin v. Löwise23c8682009-05-29 16:01:34 +0000786- Issue #4873: Fix resource leaks in error cases of pwd and grp.
787
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000788- Issue #6093: Fix off-by-one error in locale.strxfrm.
789
Benjamin Peterson744af442009-05-23 18:51:49 +0000790- The _functools and _locale modules are now built into the libpython shared
791 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000792
Antoine Pitrou20327222009-05-24 20:39:11 +0000793Build
794-----
795
796- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
797 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
798 Clinton Roy.
799
Brett Cannon1262e7c2009-05-11 01:47:11 +0000800Tests
801-----
802
803- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
804 tests on darwin even when the OS was installed on a case-sensitive
805 filesystem. Also fixed tests that should not be run when
806 sys.dont_write_bytecode is true.
807
808
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000809What's New in Python 3.1 beta 1?
810================================
811
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000812*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000813
814Core and Builtins
815-----------------
816
Mark Dickinson865e01a2009-05-07 16:37:01 +0000817- Issue #5914: Add new C API function PyOS_string_to_double, and
818 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
819
Eric Smith741191f2009-05-06 13:08:15 +0000820- Issue #3382: float.__format__, complex.__format__, and %-formatting
821 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
822 affects nan -> NAN and inf -> INF.
823
Mark Hammond5a607a32009-05-06 08:04:54 +0000824- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
825 in all operations, including splitdrive, split, etc. splitunc() now issues
826 a PendingDeprecation warning.
827
Eric Smith63376222009-05-05 14:04:18 +0000828- Issue #5920: For float.__format__, change the behavior with the
829 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
830 to be like 'g' but with at least one decimal point and with a
831 default precision of 12. Previously, the behavior the same but with
832 a default precision of 6. This more closely matches str(), and
833 reduces surprises when adding alignment flags to the empty
834 presentation type. This also affects the new complex.__format__ in
835 the same way.
836
Martin v. Löwis011e8422009-05-05 04:43:17 +0000837- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
838
R. David Murrayb18500d2009-05-04 22:59:07 +0000839- Issue #5890: in subclasses of 'property' the __doc__ attribute was
840 shadowed by classtype's, even if it was None. property now
841 inserts the __doc__ into the subclass instance __dict__.
842
Antoine Pitrou244651a2009-05-04 18:56:13 +0000843- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
844 sequences. Patch by Nick Barnes and Victor Stinner.
845
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000846- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000847
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000848- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
849 received a new method, detach(). detach() disconnects the underlying stream
850 from the buffer or text IO and returns it.
851
Mark Dickinson33841c32009-05-01 15:37:04 +0000852- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
853 floats with absolute value over 1e50. Also remove length
854 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
855 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000856
Eric Smith741191f2009-05-06 13:08:15 +0000857- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000858 format(complex(1, 2./3), '.5') now produces a sensible result.
859
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000860- Issue #5864: Fix empty format code formatting for floats so that it
861 never gives more than the requested number of significant digits.
862
Eric Smith6dc46f52009-04-27 20:39:49 +0000863- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
864 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
865
Eric Smithcc32a112009-04-26 21:35:14 +0000866- Issue #5835: Deprecate PyOS_ascii_formatd.
867
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000868- Issue #4971: Fix titlecase for characters that are their own
869 titlecase, but not their own uppercase.
870
Benjamin Peterson193152c2009-04-25 01:08:45 +0000871- Issue #5283: Setting __class__ in __del__ caused a segfault.
872
Mark Dickinsonad476da2009-04-23 19:14:16 +0000873- Issue #5816: complex(repr(z)) now recovers z exactly, even when
874 z involves nans, infs or negative zeros.
875
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000876- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000877
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000878- Issue #1869 (and many duplicates): make round(x, n) correctly
879 rounded for a float x, by using the decimal <-> binary conversions
880 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
881 consistently agrees with format(x, '.2f').
882
Benjamin Petersonae937c02009-04-18 20:54:08 +0000883- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
884 some builtin types.
885
Eric Smith0923d1d2009-04-16 20:16:10 +0000886- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
887
Eric Smith35e84722009-04-16 20:21:28 +0000888- Issue #5515: str.format() type 'n' combined with commas and leading
889 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000890
891- Implement PEP 378, Format Specifier for Thousands Separator, for
892 floats.
893
Mark Dickinson3370cce2009-04-17 22:40:53 +0000894- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000895 1e11, not 1e12. This avoids printing 13 significant digits in
896 situations where only 12 of them are correct. Example problem
897 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
898 long time.)
899
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000900- Issue #1580: On most platforms, use a 'short' float repr: for a
901 finite float x, repr(x) now outputs a string based on the shortest
902 sequence of decimal digits that rounds to x. Previous behaviour was
903 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000904 Another minor difference is that the new repr switches to
905 exponential notation at 1e16 instead of the previous 1e17; this
906 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000907
908 There's a new sys attribute sys.float_repr_style, which takes
909 the value 'short' to indicate that we're using short float repr,
910 and 'legacy' if the short float repr isn't available for one
911 reason or another.
912
913 The float repr change involves incorporating David Gay's 'perfect
914 rounding' code into the Python core (it's in Python/dtoa.c). As a
915 secondary consequence, all string-to-float and float-to-string
916 conversions (including all float formatting operations) will be
917 correctly rounded on these platforms.
918
919 See issue 1580 discussions for details of platforms for which
920 this change does not apply.
921
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000922- Issue #5759: float() didn't call __float__ on str subclasses.
923
Georg Brandlabc38772009-04-12 15:51:51 +0000924- The string.maketrans() function is deprecated; there is a new static method
925 maketrans() on the bytes and bytearray classes. This removes confusion about
926 the types string.maketrans() is supposed to work with, and mirrors the
927 methods available on the str class.
928
R. David Murraydc6da8a2009-04-09 22:16:43 +0000929- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
930 its clarity and its speed.
931
Matthias Klose091c7b12009-04-07 13:24:27 +0000932- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
933 to avoid compiler warnings.
934
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000935- Issue #3739: The unicode-internal encoder now reports the number of characters
936 consumed like any other encoder (instead of the number of bytes).
937
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000938Installation
939------------
940
941- Issue #5756: Install idle and pydoc with a 3 suffix.
942
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000943Library
944-------
945
Martin v. Löwis403117a2009-05-24 19:19:17 +0000946- Issue #5311: bdist_msi can now build packages that do not depend on a
947 specific Python version.
948
Raymond Hettingereb816952009-05-29 01:22:18 +0000949- Issue #5150: IDLE's format menu now has an option to strip trailing
950 whitespace.
951
Vinay Sajipaffbd872009-06-11 10:11:47 +0000952- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000953 the right type checkings anymore.
954
Thomas Heller00cfc372009-05-05 19:04:40 +0000955- Issue #4875: On win32, ctypes.util.find_library does no longer
956 return directories.
957
Georg Brandl243ad662009-05-05 09:00:19 +0000958- Issue #5142: Add the ability to skip modules while stepping to pdb.
959
Georg Brandl991f9202009-05-05 08:31:54 +0000960- Issue #1309567: Fix linecache behavior of stripping subdirectories when
961 looking for files given by a relative filename.
962
Georg Brandleaa84ef2009-05-05 08:14:33 +0000963- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
964 turtle demos in Demo/turtle.
965
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000966- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
967 extracting a file to the root directory.
968
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000969- Issue #5913: os.listdir() should fail for empty path on windows.
970
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000971- Issue #5084: unpickling now interns the attribute names of pickled objects,
972 saving memory and avoiding growth in size of subsequent pickles. Proposal
973 and original patch by Jake McGuire.
974
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000975- The json module now works exclusively with str and not bytes.
976
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000977- Issue #3959: The ipaddr module has been added to the standard library.
978 Contributed by Google.
979
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000980- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
981 error when a named pipe is encountered, rather than blocking infinitely.
982
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000983- Issue #5857: tokenize.tokenize() now returns named tuples.
984
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000985- Issue #4305: ctypes should now build again on mipsel-linux-gnu
986
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000987- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
988 string is already in normalized form, by performing a quick check beforehand.
989 Original patch by Rauli Ruohonen.
990
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000991- Issue #5853: calling a function of the mimetypes module from several threads
992 at once could hit the recursion limit if the mimetypes database hadn't been
993 initialized before.
994
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000995- Issue #5854: Updated __all__ to include some missing names and remove some
996 names which should not be exported.
997
Thomas Heller34596a92009-04-24 20:50:00 +0000998- Issue #3102: All global symbols that the _ctypes extension defines
999 are now prefixed with 'Py' or '_ctypes'.
1000
1001- Issue #5041: ctypes does now allow pickling wide character.
1002
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001003- Issue #5812: For the two-argument form of the Fraction constructor,
1004 Fraction(m, n), m and n are permitted to be arbitrary Rational
1005 instances.
1006
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001007- Issue #5812: Fraction('1e6') is valid: more generally, any string
1008 that's valid for float() is now valid for Fraction(), with the
1009 exception of strings representing NaNs and infinities.
1010
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001011- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1012 bugs. Patch by Brian Quinlan.
1013
R. David Murray9e94ddf2009-04-13 17:06:33 +00001014- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1015 results in a handle_expt_event call, not handle_read_event, and POLLERR
1016 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1017 dispatcher now has an 'ignore_log_types' attribute for suppressing
1018 log messages, which is set to 'warning' by default.
1019
Matthias Klosea3d29e82009-04-07 13:13:10 +00001020- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1021 new arguments introduced in 2.5.
1022
Walter Dörwald1b08b302009-04-25 14:13:56 +00001023- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1024 makeunicodedata.py and regenerated the Unicode database (This fixes
1025 u'\u1d79'.lower() == '\x00').
1026
Matthias Klose535336f2009-04-07 13:49:45 +00001027Extension Modules
1028-----------------
1029
Benjamin Petersone04b6272009-05-04 22:25:21 +00001030- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1031 pwd.
1032
Mark Dickinsonea835e72009-04-19 20:40:33 +00001033- Issue #5463: In struct module, remove deprecated float coercion
1034 for integer type codes: struct.pack('L', 0.3) should now raise
1035 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1036 The version number has been bumped to 0.3.
1037
Matthias Klose535336f2009-04-07 13:49:45 +00001038- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1039 using Berkley-DB.
1040
Nick Coghlan47384702009-04-22 16:13:36 +00001041Tests
1042-----
1043
1044- Issue #5354: New test support function import_fresh_module() makes
1045 it easy to import both normal and optimised versions of modules.
1046 test_heapq and test_warnings have been adjusted to use it, tests for
1047 other modules with both C and Python implementations in the stdlib
1048 can be adjusted to use it over time.
1049
Walter Dörwald4ba80132009-04-25 12:48:43 +00001050- Issue #5837: Certain sequences of calls to set() and unset() for
1051 support.EnvironmentVarGuard objects restored the environment variables
1052 incorrectly on __exit__.
1053
Benjamin Petersonb173f782009-05-05 22:31:58 +00001054C-API
1055-----
1056
1057- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1058
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001059
Benjamin Petersond1735892009-03-07 18:46:21 +00001060What's New in Python 3.1 alpha 2?
1061=================================
1062
Benjamin Peterson88f14352009-04-04 21:06:52 +00001063*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001064
1065Core and Builtins
1066-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001067
Eric Smith1e1d7d22009-04-03 22:25:33 +00001068- Implement PEP 378, Format Specifier for Thousands Separator, for
1069 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001070
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001071- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1072
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001073- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1074 byte, and the 'C' code only accepts a unicode character.
1075
Georg Brandl406b3d82009-04-11 21:24:37 +00001076- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1077 when hitting the recursion limit under certain circumstances.
1078
Brett Cannon0759dd62009-04-01 18:13:07 +00001079- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1080
Georg Brandlab6f2f62009-03-31 04:16:10 +00001081- Fix a segfault when running test_exceptions with coverage, caused by
1082 insufficient checks in accessors of Exception.__context__.
1083
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001084- Issue #5604: non-ASCII characters in module name passed to
1085 imp.find_module() were converted to UTF-8 while the path is
1086 converted to the default filesystem encoding, causing nonsense.
1087
Benjamin Peterson09832742009-03-26 17:15:46 +00001088- Issue #5126: str.isprintable() returned False for space characters.
1089
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001090- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1091 the end sys.path, for compatibility with the system install of Python.
1092
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001093- Issue #4688: Add a heuristic so that tuples and dicts containing only
1094 untrackable objects are not tracked by the garbage collector. This can
1095 reduce the size of collections and therefore the garbage collection overhead
1096 on long-running programs, depending on their particular use of datatypes.
1097
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001098- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1099 improve its performance. Long divisions and remainder operations
1100 are now between 50% and 150% faster.
1101
Mark Dickinsonbd792642009-03-18 20:06:12 +00001102- Issue #4258: Make it possible to use base 2**30 instead of base
1103 2**15 for the internal representation of integers, for performance
1104 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1105 --enable-big-digits option to configure, which overrides the
1106 default. Add sys.int_info structseq to provide information about
1107 the internal format.
1108
Mark Dickinson081dfee2009-03-18 14:47:41 +00001109- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1110 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1111 and sizeof(Py_UNICODE) == 2.
1112
Eric Smith8ec90442009-03-14 12:29:34 +00001113- Issue #5237: Allow auto-numbered fields in str.format(). For
1114 example: '{} {}'.format(1, 2) == '1 2'.
1115
Antoine Pitrou652e7072009-03-13 19:25:20 +00001116- Issue #5392: when a very low recursion limit was set, the interpreter would
1117 abort with a fatal error after the recursion limit was hit twice.
1118
Matthias Klose042f1332009-04-04 14:32:42 +00001119- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1120 short file names.
1121
Benjamin Petersond1735892009-03-07 18:46:21 +00001122Library
1123-------
1124
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001125- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001126 mailbox.MH.get_message().
1127
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001128- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1129 error substitutions from non-strict codec error callbacks in
1130 incrementalencoder and StreamWriter.
1131
Georg Brandl33c28812009-04-01 23:07:29 +00001132- Issue #5656: Fix the coverage reporting when running the test suite with
1133 the -T argument.
1134
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001135- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1136
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001137- Issue #5624: Fix the _winreg module name still used in several modules.
1138
Benjamin Petersona1b49012009-03-31 23:11:32 +00001139- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1140
Jesse Nollera9314042009-03-31 22:36:44 +00001141- Issue #5619: Multiprocessing children disobey the debug flag and causes
1142 popups on windows buildbots. Patch applied to work around this issue.
1143
Jesse Noller32d68c22009-03-31 18:48:42 +00001144- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1145
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001146- Issue #5387: Fixed mmap.move crash by integer overflow.
1147
Jesse Nollerf8d00852009-03-31 03:25:07 +00001148- Issue #5261: Patch multiprocessing's semaphore.c to support context
1149 manager use: "with multiprocessing.Lock()" works now.
1150
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001151- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1152 bytes already but the failure was non-obvious.
1153
Jesse Noller7af4ef82009-03-30 16:47:15 +00001154- Issue #5177: Multiprocessing's SocketListener class now uses
1155 socket.SO_REUSEADDR on all connections so that the user no longer needs
1156 to wait 120 seconds for the socket to expire.
1157
Benjamin Peterson48e24782009-03-29 13:02:52 +00001158- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1159
Antoine Pitrou66994e12009-03-29 00:45:26 +00001160- Issue #1174606: Calling read() without arguments of an unbounded file
1161 (typically /dev/zero under Unix) could crash the interpreter.
1162
Benjamin Peterson59406a92009-03-26 17:10:29 +00001163- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1164 io.BufferedRandom have been deprecated for removal in Python 3.2.
1165
Lars Gustäbel42e00912009-03-22 20:34:29 +00001166- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1167 forever on incomplete input. That caused tarfile.open() to hang when used
1168 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1169 partial bzip2 compressed data.
1170
Mark Dickinson79f52032009-03-17 23:12:51 +00001171- Issue #2110: Add support for thousands separator and 'n' type
1172 specifier to Decimal.__format__
1173
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001174- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1175 '>' alignment characters.
1176
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001177- The error detection code in FileIO.close() could fail to reflect the `errno`
1178 value, and report it as -1 instead.
1179
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001180- Issue #5016: FileIO.seekable() could return False if the file position
1181 was negative when truncated to a C int. Patch by Victor Stinner.
1182
Mark Dickinsonae681df2009-03-21 10:26:31 +00001183Extension Modules
1184-----------------
1185
Benjamin Petersone099b372009-04-04 17:09:35 +00001186- Issue #5391: mmap now deals exclusively with bytes.
1187
Mark Dickinsonae681df2009-03-21 10:26:31 +00001188- Issue #5463: In struct module, remove deprecated overflow wrapping
1189 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001190 struct.error instead of returning b'\xff\xff\xff\xff'. The
1191 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1192 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001193
Benjamin Petersond1735892009-03-07 18:46:21 +00001194
Benjamin Petersona58a6262009-03-07 16:34:40 +00001195What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001196================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001197
Benjamin Petersona58a6262009-03-07 16:34:40 +00001198*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001199
1200Core and Builtins
1201-----------------
1202
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001203- The io module has been reimplemented in C for speed.
1204
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001205- Give dict views an informative __repr__.
1206
Eric Smith5e5c0db2009-02-20 14:25:03 +00001207- Issue #5247: Improve error message when unknown format codes are
1208 used when using str.format() with str, int, and float arguments.
1209
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001210- Issue #5249: time.strftime returned malformed string when format string
1211 contained non ascii character on windows.
1212
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001213- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1214 source has already been decoded into str.
1215
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001216- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1217 rotating the object pointer by 4 bits to the right.
1218
Mark Dickinson87ec0852009-02-09 17:15:59 +00001219- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1220 it now forces its argument to double before testing for infinity.
1221
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001222- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1223 returns a non-number type.
1224
Benjamin Peterson87618552009-02-08 15:00:52 +00001225- Issue #5182: Removed memoryview.__str__.
1226
Mark Dickinsonc008a172009-02-01 13:59:22 +00001227- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1228 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001229 the type definition cmpfunc. The tp_compare slot has been renamed
1230 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001231
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001232- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001233 were suppressing all exceptions. These include list() and bytearray().
1234
Mark Dickinson1124e712009-01-28 21:25:58 +00001235- Issue #4707: round(x, n) now returns an integer if x is an integer.
1236 Previously it returned a float.
1237
Antoine Pitroub52ec782009-01-25 16:34:23 +00001238- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1239 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1240 evaluation loop is compiled with a new dispatch mechanism which gives
1241 speedups of up to 20%, depending on the system, on various benchmarks.
1242
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001243- Issue #4874: Most builtin decoders now reject unicode input.
1244
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001245- Issue #4842: Don't allow trailing 'L' when constructing an integer
1246 from a string.
1247
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001248- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1249
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001250- Issue #4838: When a module is deallocated, free the memory backing the
1251 optional module state data.
1252
Mark Dickinson8055afd2009-01-17 10:04:45 +00001253- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1254 type to (void *).
1255
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001256- Issue #4935: The overflow checking code in the expandtabs() method common
1257 to str, bytes and bytearray could be optimized away by the compiler, letting
1258 the interpreter segfault instead of raising an error.
1259
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001260- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1261 __next__ method.
1262
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001263- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1264 function no longer attempt to call the __long__ slot to convert an object
1265 to an integer. Only the __int__ and __trunc__ slots are examined.
1266
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001267- Issue #4893: Use NT threading on CE.
1268
Martin v. Löwisec59d042009-01-12 07:59:10 +00001269- Issue #4915: Port sysmodule to Windows CE.
1270
Antoine Pitrouab868312009-01-10 15:40:25 +00001271- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1272 common cases are optimized thanks to a dedicated fast path and a moderate
1273 amount of loop unrolling.
1274
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001275- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1276 collecting the oldest generation) so that allocating lots of objects without
1277 destroying them does not show quadratic performance. Based on a proposal by
1278 Martin von Löwis at
1279 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1280
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001281- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001282 having been closed (for instance, a read() call could return some
1283 previously buffered data). Patch by Dmitry Vasiliev.
1284
Antoine Pitrou05608432009-01-09 18:53:14 +00001285- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1286 flag to work properly. Furthermore, when specifying -u, the text stdout
1287 and stderr streams have line-by-line buffering enabled (the default being
1288 to buffer arbitrary chunks of data).
1289
Raymond Hettinger35631532009-01-09 03:58:09 +00001290- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1291 instead of ints (reducing its size from 4 to 8 times thereby reducing
1292 Python's overall memory).
1293
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001294- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1295 an existing .py counterpart, override the co_filename attributes of all
1296 code objects if the original filename is obsolete (which can happen if the
1297 file has been renamed, moved, or if it is accessed through different paths).
1298 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1299
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001300- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1301 one byte. Also fixes the meaning of len() so that it returns the number of
1302 items, rather than the size in bytes.
1303
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001304- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1305
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001306- Issue #4747: When the terminal does not use utf-8, executing a script with
1307 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1308
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001309- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001310 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001311
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001312- Issue #3680: Reference cycles created through a dict, set or deque iterator
1313 did not get collected.
1314
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001315- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1316 where the tp_hash and tp_dict slots are both NULL.
1317
Georg Brandlccc47b62008-12-28 11:44:14 +00001318- Issue #4759: None is now allowed as the first argument of
1319 bytearray.translate(). It was always allowed for bytes.translate().
1320
Skip Montanaro80072cb2008-12-23 03:51:14 +00001321- Added test case to ensure attempts to read from a file opened for writing
1322 fail.
1323
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001324- Issue #3106: Speedup some comparisons (str/str and int/int).
1325
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001326- Issue #2183: Simplify and optimize bytecode for list, dict and set
1327 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1328
Antoine Pitrou621601a2008-12-17 23:18:19 +00001329- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1330 print elapsed times, not only when some objects are uncollectable /
1331 unreachable. Original patch by Neil Schemenauer.
1332
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001333- Issue #3439: Add a bit_length method to int.
1334
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001335- Issue #2173: When getting device encoding, check that return value of
1336 nl_langinfo is not the empty string. This was causing silent build
1337 failures on OS X.
1338
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001339- Issue #4597: Fixed several opcodes that weren't always propagating
1340 exceptions.
1341
1342- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001343 context manager returns a value that cannot be converted to a bool.
1344
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001345- Issue #4445: Replace "sizeof(PyBytesObject)" with
1346 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1347 bytes instances. On a typical machine this saves 3 bytes of memory
1348 (on average) per allocation of a bytes instance.
1349
Christian Heimesa872de52008-12-05 08:26:55 +00001350- Issue #4533: File read operation was dreadfully slow due to a slowly
1351 growing read buffer. Fixed by using the same growth rate algorithm as
1352 Python 2.x.
1353
Antoine Pitrou5504e892008-12-06 21:27:53 +00001354- Issue #4509: Various issues surrounding resize of bytearray objects to
1355 which there are buffer exports (e.g. memoryview instances).
1356
Georg Brandlf9734072008-12-07 15:30:06 +00001357- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1358 method on file objects with closefd=False. The file descriptor is still
1359 kept open but the file object behaves like a closed file. The ``FileIO``
1360 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001361
Antoine Pitroubc420402008-12-07 20:14:49 +00001362- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1363 larger than 1.
1364
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001365- Issue #4748: Lambda generators no longer return a value.
1366
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001367- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1368
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001369- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1370 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1371 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1372 of using the replace error handler in PyUnicode_DecodeUTF8().
1373
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001374Library
1375-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001376
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001377- Issue #7071: byte-compilation in Distutils is now done with respect to
1378 sys.dont_write_bytecode.
1379
Tarek Ziadé978cca62009-10-24 13:38:27 +00001380- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1381 raised. Initial patch by Ezio Melotti.
1382
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001383- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001384 Distutils.
1385
Tarek Ziadé31d46072009-09-21 13:55:19 +00001386- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1387
Tarek Ziadé165581c2009-09-09 08:48:07 +00001388- Issue #6163: Fixed HP-UX runtime library dir options in
1389 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1390 Michael Haubenwallner.
1391
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001392- Issue #6693: New functions in site.py to get user/global site packages paths.
1393
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001394- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1395 opening an empty or very small file.
1396
1397- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001398 behavior is similar when used with -O.
1399
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001400- unittest has been split up into a package. All old names should still work.
1401
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001402- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1403 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1404 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1405 for the obsolete get_versions() functions.
1406
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001407- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1408
1409- Issue #6314: logging: Extra checks on the "level" argument in more places.
1410
1411- Issue #2622: Fixed an ImportError when importing email.messsage from a
1412 standalone application built with py2exe or py2app.
1413
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001414- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001415
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001416- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001417 attribute.
1418
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001419- Issue #6413: Fixed the log level in distutils.dist for announce.
1420
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001421- Issue #6403: Fixed package path usage in build_ext.
1422
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001423- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1424 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1425 descriptor errors
1426
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001427- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001428 extension in a subdirectory if the extension name had dots.
1429
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001430- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001431 unixcompiler. Original patch by Sridhar Ratnakumar.
1432
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001433- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1434 httplib, allowing the usage of http_proxy.
1435
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001436- Issue #6287: Added the license field in Distutils documentation.
1437
Tarek Ziadéff543362009-06-11 09:25:41 +00001438- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1439
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001440- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1441 in Makefiles. This prevents compile errors when using syntax like:
1442 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1443
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001444- Issue #6131: test_modulefinder leaked when run after test_distutils.
1445 Patch by Hirokazu Yamamoto.
1446
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001447- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1448
Vinay Sajipaffbd872009-06-11 10:11:47 +00001449- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001450 and tests on pywin32 by Tim Golden.
1451
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001452- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1453
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001454- Issue #6046: Fixed the library extension when distutils build_ext is used
1455 inplace. Initial patch by Roumen Petrov.
1456
Vinay Sajipaffbd872009-06-11 10:11:47 +00001457- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001458 subcommand.
1459
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001460- Issue #6022: a test file was created in the current working directory by
1461 test_get_outputs in Distutils.
1462
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001463- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1464 inplace option. Initial patch by kxroberto.
1465
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001466- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1467 for old-style extensions.
1468
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001469- Issue #5976: Fixed Distutils test_check_environ.
1470
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001471- Issue #5941: Distutils build_clib command was not working anymore because
1472 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1473 Makefile besides AR and make Distutils use it. Original patch by David
1474 Cournapeau.
1475
R. David Murrayb507d2e2009-04-29 15:34:32 +00001476- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1477
Vinay Sajipaffbd872009-06-11 10:11:47 +00001478- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001479 anymore.
1480
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001481- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001482 sysconfig.get_config_vars.
1483
Tarek Ziadé23336082009-04-25 12:39:56 +00001484- Issue #4951: Fixed failure in test_httpservers.
1485
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001486- Issue #5795: Fixed test_distutils failure on Debian ppc.
1487
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001488- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1489
Georg Brandl1f9fa312009-04-27 16:42:58 +00001490- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1491 a value in SafeConfigParser.
1492
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001493- Issue #5732: added a new command in Distutils: check.
1494
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001495- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001496 platforms. Initial patch by Paul Moore.
1497
Tarek Ziadéf6370502009-04-05 22:57:21 +00001498- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1499 Initial fix by Steven Bethard.
1500
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001501- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1502 Initial fix by Wayne Davison.
1503
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001504- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001505
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001506- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001507
Brett Cannonf47e84c2009-04-01 16:06:01 +00001508- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1509 instead of performing them in functions. Helps prevent import deadlocking in
1510 threads.
1511
R. David Murraye59482e2009-04-01 03:42:00 +00001512- Issue #2522: locale.format now checks its first argument to ensure it has
1513 been passed only one pattern, avoiding mysterious errors where it appeared
1514 that it was failing to do localization.
1515
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001516- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1517 Brandl.
1518
Antoine Pitrou350370c2009-03-14 00:13:13 +00001519- Issue #1222: locale.format() bug when the thousands separator is a space
1520 character.
1521
Tarek Ziadé516db942009-03-11 12:52:00 +00001522- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1523 Tim Golden.
1524
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001525- collections.deque() objects now have a read-only attribute called maxlen.
1526
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001527- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1528 it is has been populated and properly configured in order to prevent
1529 window flashing.
1530
Guilherme Polo56f5be52009-03-07 01:54:57 +00001531- Issue #4792: Prevent a segfault in _tkinter by using the
1532 guaranteed to be safe interp argument given to the PythonCmd in place of
1533 the Tcl interpreter taken from a PythonCmd_ClientData.
1534
1535- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1536
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001537- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1538 Original patch by Akira Kitada.
1539
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001540- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1541
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001542- Issue #5385: Fixed mmap crash after resize failure on windows.
1543
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001544- Issue #5179: Fixed subprocess handle leak on failure on windows.
1545
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001546- PEP 372: Added collections.OrderedDict().
1547
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001548- The _asdict() for method for namedtuples now returns an OrderedDict().
1549
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001550- configparser now defaults to using an ordered dictionary.
1551
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001552- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1553 import guess_extension`` was used.
1554
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001555- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1556 with same tagname but larger size than first map. (Windows)
1557
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001558- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1559 overrun.
1560
Tarek Ziadéf0721222009-02-28 10:16:43 +00001561- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1562 bdist_rpm command.
1563
1564- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1565
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001566- Issue #5052: make Distutils compatible with 2.3 again.
1567
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001568- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1569 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001570
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001571- Issue #5287: Add exception handling around findCaller() call to help out
1572 IronPython.
1573
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001574- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1575 The file was resized to wrong size.
1576
1577- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1578
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001579- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001580 from the package_data and the data_files metadata.
1581
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001582- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001583 support.TempdirManager, to avoid writing in the tests directory.
1584
Tarek Ziadé68c50952009-02-13 23:04:17 +00001585- Issue #4524: distutils build_script command failed with --with-suffix=3.
1586 Initial patch by Amaury Forgeot d'Arc.
1587
Tarek Ziadé811d6242009-02-13 22:26:15 +00001588- Issue #2461: added tests for distutils.util
1589
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001590- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1591 which inherited from numbers.py which did not have __slots__ defined. The
1592 numbers hierarchy now has its own __slots__ declarations.
1593
Antoine Pitroub353c122009-02-11 00:39:14 +00001594- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1595 encoding.
1596
Thomas Heller465c8022009-02-10 18:59:04 +00001597- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1598 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1599
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001600- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1601 under NT and OS2. Patch by Philip Jenvey.
1602
Brett Cannonbefb14f2009-02-10 02:10:16 +00001603- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1604 to be recreated. This avoids a timing hole thanks to the old reliance on the
1605 ctime of the files involved.
1606
Guilherme Polob681df42009-02-09 22:33:59 +00001607- Issue #5122: Synchronize tk load failure check to prevent a potential
1608 deadlock.
1609
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001610- Issue #1818: collections.namedtuple() now supports a keyword argument
1611 'rename' which lets invalid fieldnames be automatically converted to
1612 positional names in the form, _1, _2, ...
1613
Guilherme Poloae098992009-02-09 16:44:24 +00001614- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1615
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001616- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1617 public documented method ``ZipImporter.get_filename()``.
1618
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001619- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1620 the execution of packages by looking for and executing a ``__main__``
1621 submodule when a package name is supplied. Initial patch by Andi
1622 Vajda.
1623
Guilherme Polo491aee22009-02-06 23:16:11 +00001624- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1625 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1626 Tkapp_Call when calling from a thread different than the one that created
1627 the Tcl interpreter. Patch by Robert Hancock.
1628
Eric Smith0e5b5622009-02-06 01:32:42 +00001629- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1630 Ross Light.
1631
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001632- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001633 environment/Makefile. Patch by Douglas Greiman.
1634
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001635- Issue #1276768: The verbose option was not used in the code of
1636 distutils.file_util and distutils.dir_util.
1637
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001638- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001639 --enabled-shared activated. Initial patch by Dave Peterson.
1640
Guilherme Polo7f423952009-02-02 21:17:09 +00001641- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1642
Raymond Hettinger85602262009-02-03 04:19:10 +00001643- The shelve module now defaults to pickle protocol 3.
1644
Brett Cannone61426e2009-01-30 01:31:34 +00001645- Fix a bug in the trace module where a bytes object from co_lnotab had its
1646 items being passed through ord().
1647
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001648- Issue #2047: shutil.move() could believe that its destination path was
1649 inside its source path if it began with the same letters (e.g. "src" vs.
1650 "src.new").
1651
Guilherme Polo5f238482009-01-28 14:41:10 +00001652- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1653
Raymond Hettinger89e12962009-01-26 02:09:03 +00001654- Removed isSequenceType(), isMappingType, and isNumberType() from the
1655 operator module; use the abstract base classes instead. Also removed
1656 the repeat() function; use mul() instead.
1657
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001658- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001659 collections.namedtuple() relied on __name__ being defined.
1660
1661- Backport importlib from Python 3.1. Only the import_module() function has
1662 been backported to help facilitate transitions from 2.7 to 3.1.
1663
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001664- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1665 the tar file was overriden by the gztar one.
1666
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001667- Issue #4863: distutils.mwerkscompiler has been removed.
1668
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001669- Added a new itertools functions: combinations_with_replacement()
1670 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001671
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001672- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001673 allowed non-integer arguments.
1674
Jesse Noller41faa542009-01-25 03:45:53 +00001675- Fix and properly document the multiprocessing module's logging
1676 support, expose the internal levels and provide proper usage
1677 examples.
1678
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001679- Issue #1672332: fix unpickling of subnormal floats, which was
1680 producing a ValueError on some platforms.
1681
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001682- Issue #3881: Help Tcl to load even when started through the
1683 unreadable local symlink to "Program Files" on Vista.
1684
Martin v. Löwis59e47792009-01-24 14:10:07 +00001685- Issue #4710: Extract directories properly in the zipfile module;
1686 allow adding directories to a zipfile.
1687
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001688- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001689 --without-threads argument. When this occurs, _multiprocessing will
1690 be disabled, and not compiled.
1691
Antoine Pitrou08838b62009-01-21 00:55:13 +00001692- Issue #5008: When a file is opened in append mode with the new IO library,
1693 do an explicit seek to the end of file (so that e.g. tell() returns the
1694 file size rather than 0). This is consistent with the behaviour of the
1695 traditional 2.x file object.
1696
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001697- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1698 parameter was set.
1699
Mark Dickinson8dd05142009-01-20 20:43:58 +00001700- Issue #4842: Always append a trailing 'L' when pickling longs using
1701 pickle protocol 0. When reading, the 'L' is optional.
1702
Brett Cannonafccd632009-01-20 02:21:27 +00001703- Add the importlib package.
1704
Jesse Noller9a0fc972009-01-18 21:12:58 +00001705- Issue #4301: Patch the logging module to add processName support, remove
1706 _check_logger_class from multiprocessing.
1707
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001708- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001709 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001710
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001711- Issue #4959: inspect.formatargspec now works for keyword only arguments
1712 without defaults.
1713
Jesse Noller6214edd2009-01-19 16:23:53 +00001714- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1715 for *nix machines for negative handles and large int handles. Without this check
1716 it is possible to segfault the interpreter.
1717
Jesse Nollerb0516a62009-01-18 03:11:38 +00001718- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1719 in sharedctypes.py.
1720
1721- Issue #1225107: inspect.isclass() returned True for instances with a custom
1722 __getattr__.
1723
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001724- Issue #3826 and #4791: The socket module now closes the underlying socket
1725 appropriately when it is being used via socket.makefile() objects
1726 rather than delaying the close by waiting for garbage collection to do it.
1727
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001728- Issue #1696199: Add collections.Counter() for rapid and convenient
1729 counting.
1730
Antoine Pitrou308705e2009-01-10 16:22:51 +00001731- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1732
Thomas Heller5e4e4272009-01-08 09:34:20 +00001733- Issue #4867: Fixed a crash in ctypes when passing a string to a
1734 function without defining argtypes.
1735
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001736- Issue #4272: Add an optional argument to the GzipFile constructor to override
1737 the timestamp in the gzip stream. The default value remains the current time.
1738 The information can be used by e.g. gunzip when decompressing. Patch by
1739 Jacques Frechet.
1740
Mark Dickinson315a20a2009-01-04 21:34:18 +00001741- Restore Python 2.3 compatibility for decimal.py.
1742
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001743- Issue #3638: Remove functions from _tkinter module level that depend on
1744 TkappObject to work with multiple threads.
1745
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001746- Issue #4718: Adapt the wsgiref package so that it actually works with
1747 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001748 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1749
Raymond Hettinger771ed762009-01-03 19:20:32 +00001750- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1751 to the decimal module.
1752
Georg Brandl3a9b0622009-01-03 22:07:57 +00001753- Fractions.from_float() no longer loses precision for integers too big to
1754 cast as floats.
1755
Mark Dickinsonf9236412009-01-02 23:23:21 +00001756- Issue #4812: add missing underscore prefix to some internal-use-only
1757 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1758
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001759- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001760 did unnecessary work in the common case where no key function was specified.
1761
Georg Brandlb1441c72009-01-03 22:33:39 +00001762- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1763 the function is not a generator.
1764
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001765- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1766 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001767
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001768- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001769 function. Original patch by Thomas Heller.
1770
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001771- Issue #3767: Convert Tk object to string in tkColorChooser.
1772
Martin v. Löwise354d782008-12-29 16:03:04 +00001773- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1774
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001775- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1776 the code under test can be written inline if more practical.
1777
Georg Brandldb7b6b92009-01-01 15:53:14 +00001778- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1779 works as expected in the interactive environment.
1780
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001781- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1782 Gabriel Genellina.
1783
Antoine Pitrou180a3362008-12-14 16:36:46 +00001784- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1785 boundary.
1786
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001787- Issue #4223: inspect.getsource() will now correctly display source code
1788 for packages loaded via zipimport (or any other conformant PEP 302
1789 loader). Original patch by Alexander Belopolsky.
1790
1791- Issue #4201: pdb can now access and display source code loaded via
1792 zipimport (or any other conformant PEP 302 loader). Original patch by
1793 Alexander Belopolsky.
1794
1795- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1796 302 conformant loader) will now work correctly in most cases (they
1797 are still subject to the constraints that exist for all code running
1798 from inside a module loaded via a PEP 302 loader and attempting to
1799 perform IO operations based on __file__). Original patch by
1800 Alexander Belopolsky.
1801
1802- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1803 allows backporting to maintenance branches. Original patch by
1804 Alexander Belopolsky.
1805
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001806- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1807 a non-ASCII letter.
1808
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001809- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1810
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001811- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1812 codec cannot be found. This is for compatibility with the builtin behavior.
1813
Facundo Batista708d5812008-12-11 04:20:07 +00001814- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1815 give correct results in the case where one argument is a quiet NaN
1816 and the other is a finite number that requires rounding.
1817
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001818- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1819 libs.
1820
Georg Brandlf9734072008-12-07 15:30:06 +00001821- Added the subprocess.check_call_output() convenience function to get output
1822 from a subprocess on success or raise an exception on error.
1823
1824- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1825 support unusual filenames (such as those containing semi-colons) in
1826 Content-Disposition headers.
1827
1828- Issue #4384: Added logging integration with warnings module using
1829 captureWarnings(). This change includes a NullHandler which does nothing;
1830 it will be of use to library developers who want to avoid the "No handlers
1831 could be found for logger XXX" message which can appear if the library user
1832 doesn't configure logging.
1833
1834- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1835 exception.
1836
Georg Brandleee31162008-12-07 15:15:22 +00001837- Issue #4529: fix the parser module's validation of try-except-finally
1838 statements.
1839
1840- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1841 not a malformed option.
1842
1843- Added the subprocess.check_output() convenience function to get output
1844 from a subprocess on success or raise an exception on error.
1845
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001846- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1847 the corresponding tests now pass.
1848
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001849- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1850 it was calling the wrong open() function.
1851
Fred Drake9a0a65b2008-12-04 19:24:50 +00001852- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1853 support unusual filenames (such as those containing semi-colons) in
1854 Content-Disposition headers.
1855
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001856- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1857 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1858
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001859- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1860 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1861 and getservbyport().
1862
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001863- Windows locale mapping updated to Vista.
1864
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001865Tools/Demos
1866-----------
1867
Antoine Pitrou8a681222009-02-07 17:13:31 +00001868- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1869 and make it 2.6-compatible.
1870
Guilherme Poloa7d27972009-01-28 16:06:51 +00001871- Ttk demos added in Demo/tkinter/ttk/
1872
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001873- Issue #4677: add two list comprehension tests to pybench.
1874
Georg Brandlb1441c72009-01-03 22:33:39 +00001875
1876Build
1877-----
1878
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001879- Issue #6094: Build correctly with Subversion 1.7.
1880
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001881- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1882
Antoine Pitrou8966c992009-05-01 21:18:27 +00001883- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1884 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1885
Matthias Klose55708cc2009-04-30 08:06:49 +00001886- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001887 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001888
Matthias Klose906785c2009-02-22 23:18:38 +00001889- Link the shared python library with $(MODLIBS).
1890
Martin v. Löwis11f72102009-02-10 13:13:30 +00001891- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1892
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001893- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1894
Martin v. Löwise97637d2009-01-11 09:45:11 +00001895- Issue #4895: Use _strdup on Windows CE.
1896
Georg Brandlb1441c72009-01-03 22:33:39 +00001897- Issue #4472: "configure --enable-shared" now works on OSX
1898
1899- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1900
1901- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1902
1903- Issue #4289: Remove Cancel button from AdvancedDlg.
1904
1905- Issue #1656675: Register a drop handler for .py* files on Windows.
1906
1907- Issue #4120: Exclude manifest from extension modules in VS2008.
1908
1909- Issue #4091: Install pythonxy.dll in system32 again.
1910
1911- Issue #4018: Disable "for me" installations on Vista.
1912
1913- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1914
1915- Issue #4204: Fixed module build errors on FreeBSD 4.
1916
1917
1918C-API
1919-----
1920
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001921- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1922 NUL: Bogus TypeError detail string.
1923
Mark Dickinson21776072009-02-10 16:13:25 +00001924- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1925 for negative arguments. Previously, it raised TypeError.
1926
Georg Brandlb1441c72009-01-03 22:33:39 +00001927- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1928
1929- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1930 the GIL is released, or owned by another thread.
1931
1932- Issue #4122: On Windows, fix a compilation error when using the
1933 Py_UNICODE_ISSPACE macro in an extension module.
1934
1935
Mark Dickinsone675f082008-12-11 21:56:00 +00001936Extension Modules
1937-----------------
1938
Gregory P. Smith365a1862009-02-12 07:35:29 +00001939- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1940 supporting objects as input no matter how it was compiled (built in
1941 implementations or external openssl library).
1942
Mark Dickinson29500f62009-01-15 15:36:10 +00001943- Issue #4397: Fix occasional test_socket failure on OS X.
1944
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001945- Issue #4279: Fix build of parsermodule under Cygwin.
1946
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001947- Issue #4751: hashlib now releases the GIL when hashing large buffers
1948 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1949 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1950
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001951- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1952
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001953- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1954 or decompress several streams at once on multi-CPU systems. Also, the GIL
1955 is now released when computing the CRC of a large buffer. Patch by ebfe.
1956
Georg Brandlb1441c72009-01-03 22:33:39 +00001957- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1958
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001959- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1960
Mark Dickinsone675f082008-12-11 21:56:00 +00001961- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1962 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001963
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001964- Issue #4583: array.array would not always prohibit resizing when a buffer
1965 has been exported, resulting in an interpreter crash when accessing the
1966 buffer.
1967
Martin v. Löwis841edad2008-11-30 10:36:49 +00001968
Jack Diederiche0cbd692009-04-01 04:27:09 +00001969- Issue #5228: Make functools.partial objects can now be pickled.
1970
Guilherme Polo9de29af2009-01-28 20:40:48 +00001971Tests
1972-----
1973
Antoine Pitrou88909542009-06-29 13:54:42 +00001974- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1975 regression tests in parallel, shortening the total runtime.
1976
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001977- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1978 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1979 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1980 skip the tests if DISPLAY is defined but can't be used.
1981
R. David Murraya21e4ca2009-03-31 23:16:50 +00001982- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001983 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001984 from test support, which does the conversion.
1985
Guilherme Polo9de29af2009-01-28 20:40:48 +00001986- Issue #5083: New 'gui' resource for regrtest.
1987
1988
Brett Cannon7317c1e2008-11-25 19:19:17 +00001989Docs
1990----
1991
Georg Brandl52b92cc2008-05-25 09:43:03 +00001992
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001993**(For information about older versions, consult the HISTORY file.)**