blob: 3abf192ef9dd2e669f66c3fb0b25770c992b1733 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000015- Issue #7085: Fix crash when importing some extensions in a thread
16 on MacOSX 10.6.
17
Philip Jenvey1309adb2009-11-17 03:43:14 +000018- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
19
Mark Dickinson6f1d0492009-11-15 13:58:49 +000020- Issue #6970: Remove redundant calls when comparing objects that don't
21 implement the relevant rich comparison methods.
22
Mark Dickinsond550c9a2009-11-15 09:57:26 +000023- Issue #7298: fixes for range and reversed(range(...)). Iteration
24 over range(a, b, c) incorrectly gave an empty iterator when a, b and
25 c fit in C long but the length of the range did not. Also fix
26 several cases where reversed(range(a, b, c)) gave wrong results, and
27 fix a refleak for reversed(range(a, b, c)) with large arguments.
28
Raymond Hettingerfc438512009-11-01 20:55:33 +000029- Issue #7244: itertools.izip_longest() no longer ignores exceptions
30 raised during the formation of an output tuple.
31
Benjamin Petersonb2e796a2009-10-28 21:59:39 +000032- Issue #3297: On wide unicode builds, do not split unicode characters into
33 surrogates.
34
Mark Dickinsonf9724882009-10-26 21:51:18 +000035- Remove length limitation when constructing a complex number from a string.
36
Mark Dickinson27a87a22009-10-25 20:43:34 +000037- Issue #1087418: Boost performance of bitwise operations for longs.
38
Antoine Pitroub6ef9632009-10-24 20:47:05 +000039- Support for AtheOS has been completely removed from the code base. It was
40 disabled since Python 3.0.
41
42- Support for several legacy threading libraries has been disabled. These
43 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
44 will be entirely removed in 3.3.
45
Raymond Hettingeraf7adad2009-10-22 11:22:50 +000046- Peephole constant folding had missed UNARY_POSITIVE.
47
Antoine Pitrou011bd622009-10-20 21:52:47 +000048- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
49 fixes the problem of some exceptions being thrown at shutdown when the
50 interpreter is killed. Patch by Adam Olsen.
51
Antoine Pitrou671141d2009-10-19 19:37:25 +000052- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +000053 support.
54
Vinay Sajip96d4aa32009-10-16 14:06:44 +000055- Issue #7120: logging: Removed import of multiprocessing which is causing
56 crash in GAE.
57
Neil Schemenauere441cb72009-10-14 19:14:38 +000058- Issue #1754094: Improve the stack depth calculation in the compiler.
59 There should be no other effect than a small decrease in memory use.
60 Patch by Christopher Tur Lesniewski-Laas.
61
Antoine Pitrou403ce782009-10-14 17:14:16 +000062- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +000063 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +000064
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +000065- Issue #1571184: The Unicode database contains properties for more characters.
66 The tables for code points representing numeric values, white spaces or line
67 breaks are now generated from the official Unicode Character Database files,
68 and include information from the Unihan.txt file.
69
Mark Dickinson2683ab02009-09-29 19:21:35 +000070- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
71 of producing internally inconsistent Python longs.
72
Philip Jenvey26713ca2009-09-29 04:57:18 +000073- Issue #6990: Fix threading.local subclasses leaving old state around
74 after a reference cycle GC which could be recycled by new locals.
75
Benjamin Peterson4905e802009-09-27 02:43:28 +000076- Issue #5460: Fix an ambiguity in the grammar.
77
Mark Dickinson3e124ae2009-09-22 21:47:24 +000078- Issue #1766304: Improve performance of membership tests on range objects.
79
Mark Dickinson0a1efd02009-09-16 21:23:34 +000080- Issue #6713: Improve performance of integer -> string conversions.
81
Mark Dickinson54a3db92009-09-06 10:19:23 +000082- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
83
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +000084- Issue #6750: A text file opened with io.open() could duplicate its output
85 when writing from multiple threads at the same time.
86
Benjamin Peterson14327712009-08-15 13:23:05 +000087- Issue #6707: dir() on an uninitialized module caused a crash.
88
Georg Brandl953152f2009-07-22 12:03:59 +000089- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
90
Raymond Hettingere805ecc2009-07-27 20:16:37 +000091- Issue #6573: set.union() stopped processing inputs if an instance of self
92 occurred in the argument chain.
93
R. David Murray046f7232009-07-19 02:22:05 +000094- Issue #6070: On posix platforms import no longer copies the execute bit
95 from the .py file to the .pyc file if it is set.
96
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000097- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
98
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000099- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
100 object, and not an int. Fix the corresponding error message, and the
101 documentation.
102
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000103- The deprecated PyCObject has been removed.
104
Mark Dickinson835a6c82009-06-30 15:45:17 +0000105- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
106 This fixes a build failure on HP-UX: int32_t and uint32_t are
107 defined in inttypes.h instead of stdint.h on that platform.
108
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000109- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000110 the 'surrogateescape' error handler, a string which contains unpaired
111 surrogates.
112
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000113- Issue #4856: Remove checks for win NT.
114
Benjamin Peterson466a7822009-07-02 21:44:01 +0000115C-API
116-----
117
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000118- Issue #Add '%lld' and '%llu' support to PyString_FromFormat(V)
119 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
120
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000121- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
122 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
123 should used for accessing the d_type and d_name members of structures
124 using PyDescr_COMMON.
125
126- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000127
Benjamin Peterson466a7822009-07-02 21:44:01 +0000128- The code flags for old __future__ features are now available again.
129
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000130- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
131 PyCode_Addr2Line().
132
133- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
134 object at a specified file, function, and line number.
135
136- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
137 ``const char *`` as the string is stored beyond the call.
138
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000139
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000140Library
141-------
142
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000143- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
144 Robert Collins.
145
Vinay Sajip03f6c112009-11-27 14:03:36 +0000146- Issue #7403: logging: Fixed possible race condition in lock creation.
147
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000148- Issue #6845: Add restart support for binary upload in ftplib. The
149 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
150 argument. Patch by Pablo Mouzo.
151
Antoine Pitroube6859d2009-11-25 23:02:32 +0000152- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
153 method returning the total number of seconds in the duration. Patch by
154 Brian Quinlan.
155
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000156- Issue #7133: SSL objects now support the new buffer API.
157
Senthil Kumaran758025c2009-11-23 19:02:52 +0000158- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
159
Lars Gustäbel9520a432009-11-22 18:48:49 +0000160- Issue #6123: tarfile now opens empty archives correctly and consistently
161 raises ReadError on empty files.
162
Tarek Ziadé26afd482009-11-19 05:39:00 +0000163- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
164 be 2.
165
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000166- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
167 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000168
Lars Gustäbel7b465392009-11-18 20:29:25 +0000169- Issue #7341: Close the internal file object in the TarFile constructor in
170 case of an error.
171
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000172- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
173 Windows box. Help provided by David Bolen.
174
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000175- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
176 TLS or SSL. Patch by Giampaolo Rodola'.
177
Nick Coghlan106274b2009-11-15 23:04:33 +0000178- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
179
Antoine Pitroub8108e22009-11-15 14:25:16 +0000180- Issue #4969: The mimetypes module now reads the MIME database from
181 the registry under Windows. Patch by Gabriel Genellina.
182
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000183- Issue #6816: runpy now provides a run_path function that allows Python code
184 to execute file paths that refer to source or compiled Python files as well
185 as zipfiles, directories and other valid sys.path entries that contain a
186 __main__.py file. This allows applications that run other Python scripts to
187 support the same flexibility as the CPython command line itself.
188
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000189- Issue #7318: multiprocessing now uses a timeout when it fails to establish
190 a connection with another process, rather than looping endlessly. The
191 default timeout is 20 seconds, which should be amply sufficient for
192 local connections.
193
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000194- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
195 unpickled. This fixes crashes under Windows when trying to run
196 test_multiprocessing in verbose mode.
197
Antoine Pitrou434736a2009-11-10 18:46:01 +0000198- Issue #3001: Add a C implementation of recursive locks which is used by
199 default when instantiating a `threading.RLock` object. This makes
200 recursive locks as fast as regular non-recursive locks (previously,
201 they were slower by 10x to 15x).
202
Antoine Pitroub0872682009-11-09 16:08:16 +0000203- Issue #7282: Fix a memory leak when an RLock was used in a thread other
204 than those started through `threading.Thread` (for example, using
205 `_thread.start_new_thread()`).
206
Brett Cannone52c9192009-11-07 23:55:05 +0000207- Issue #7187: Importlib would not silence the IOError raised when trying to
208 write new bytecode when it was made read-only.
209
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000210- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
211 which are part of a reference cycle.
212
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000213- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
214 objects on 64-bit systems. Patch by Michael Broghton.
215
Antoine Pitrou03f13442009-11-02 11:36:51 +0000216- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
217 a modification is done through it. This fixes inconsistencies and test
218 failures on systems with slightly bogus mtime behaviour.
219
Gregory P. Smith50467882009-11-01 18:42:17 +0000220- Issue #7246 & Issue #7208: getpass now properly flushes input before
221 reading from stdin so that existing input does not confuse it and
222 lead to incorrect entry or an IOError. It also properly flushes it
223 afterwards to avoid the terminal echoing the input afterwards on
224 OSes such as Solaris.
225
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000226- Issue #7233: Fix a number of two-argument Decimal methods to make
227 sure that they accept an int or long as the second argument. Also
228 fix buggy handling of large arguments (those with coefficient longer
229 than the current precision) in shift and rotate.
230
Lars Gustäbel1440df22009-10-29 09:39:47 +0000231- Issue #4750: Store the basename of the original filename in the gzip FNAME
232 header as required by RFC 1952.
233
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000234- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
235 Distutils.
236
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000237- Issue #7218: Fix test_site for win32, the directory comparison was done with
238 an uppercase.
239
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000240- Issue #7205: Fix a possible deadlock when using a BZ2File object from
241 several threads at once.
242
Vinay Sajip42ead482009-10-21 20:22:14 +0000243- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
244
Mark Dickinson06bb6742009-10-20 13:38:04 +0000245- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
246 larger than emax.
247
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000248- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
249 platforms, and assorted locale fixes by Derk Drukker.
250
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000251- Issue #5833: Fix extra space character in readline completion with the
252 GNU readline library version 6.0.
253
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000254- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000255
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000256- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
257 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000258
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000259- Issue #7082: When falling back to the MIME 'name' parameter, the
260 correct place to look for it is the Content-Type header.
261
Benjamin Petersond3afada2009-10-09 21:43:09 +0000262- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
263 builtin tokenizer.
264
Mark Dickinson56df8872009-10-07 19:23:50 +0000265- Issue #7048: Force Decimal.logb to round its result when that result
266 is too large to fit in the current precision.
267
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000268- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000269 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000270
Thomas Heller69b639f2009-09-18 20:08:39 +0000271- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
272 does now always result in NULL.
273
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000274- Issue #5042: Structure sub-subclass does now initialize correctly
275 with base class positional arguments.
276
Eric Smith81fd8042009-09-18 13:23:13 +0000277- Issue #6882: Import uuid creates zombies processes.
278
Matthias Klosef6b76b02009-09-13 15:18:53 +0000279- Issue #6635: Fix profiler printing usage message.
280
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000281- Issue #6856: Add a filter keyword argument to TarFile.add().
282
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000283- Issue #6888: pdb's alias command was broken when no arguments were given.
284
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000285- Issue #6857: Default format() alignment should be '>' for Decimal
286 instances.
287
Mark Dickinson825fce32009-09-07 18:08:12 +0000288- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
289 returning NaN or raising InvalidContext. Also, fix infinite recursion
290 in long(Decimal('nan')).
291
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000292- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
293 with no type specifier.
294
Thomas Heller8b939522009-09-04 18:24:41 +0000295- Issue #6239: ctypes.c_char_p return value must return bytes.
296
Chris Withers9c33cbf2009-09-04 17:04:16 +0000297- Issue #6838: Use a list to accumulate the value instead of
298 repeatedly concatenating strings in http.client's
299 HTTPResponse._read_chunked providing a significant speed increase
300 when downloading large files servend with a Transfer-Encoding of 'chunked'.
301
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000302- Trying to import a submodule from a module that is not a package, ImportError
303 should be raised, not AttributeError.
304
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000305- When the globals past to importlib.__import__() has __package__ set to None,
306 fall back to computing what __package__ should be instead of giving up.
307
Brett Cannon6afbaef2009-08-30 19:08:58 +0000308- Raise a TypeError when the name of a module to be imported for
309 importlib.__import__ is not a string (was raising an
310 AttributeError before).
311
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000312- Allow the fromlist passed into importlib.__import__ to be any iterable.
313
Brett Cannon4d75fc12009-08-30 03:47:36 +0000314- Have importlib raise ImportError if None is found in sys.modules.
315
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000316- Issue #6054: Do not normalize stored pathnames in tarfile.
317
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000318- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
319 payloads are now ordered by integer value rather than lexicographically.
320
Guilherme Polobcd03df2009-08-18 15:35:57 +0000321- Issue #1356969: Add missing info methods in tix.HList.
322
323- Issue #1522587: New constants and methods for the tix.Grid widget.
324
325- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
326
327- Issue #1119673: Do not override tkinter.Text methods when creating a
328 ScrolledText.
329
Gregory P. Smith01099702009-08-16 18:58:46 +0000330- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
331
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000332- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
333 the xview* and yview* methods.
334
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000335- Issue #6629: Fix a data corruption issue in the new I/O library, which could
336 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
337 "wb+" mode) after having buffered a certain amount of data for reading. This
338 bug was not present in the pure Python implementation.
339
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000340- Issue #6622: Fix "local variable 'secret' referenced before
341 assignment" bug in POP3.apop.
342
Mark Dickinson45f799f2009-08-02 20:08:54 +0000343- Issue #2715: Remove remnants of Carbon.File from binhex module.
344
Mark Dickinson345adc42009-08-02 10:14:23 +0000345- Issue #6595: The Decimal constructor now allows arbitrary Unicode
346 decimal digits in input, as recommended by the standard. Previously
347 it was restricted to accepting [0-9].
348
Jack Diederich36596a32009-07-26 22:23:04 +0000349- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
350 DO/DONT correctly.
351
Senthil Kumaran67305382009-07-26 04:46:00 +0000352- Issue #1424152: Fix for http.client, urllib.request to support SSL while
353 working through proxy. Original patch by Christopher Li, changes made by
354 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000355
Brett Cannon69194272009-07-20 04:23:48 +0000356- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
357 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
358 and PyPycLoader inherit from this class and provide implementations in
359 relation to other methods required by the ABCs.
360
Brett Cannon64ef00f2009-07-20 03:19:18 +0000361- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
362 the documentation said it did even though the code in PyLoader relied on the
363 abstract method required by ResourceLoader.
364
Mark Dickinson85424c92009-07-18 14:41:42 +0000365- Issue #6431: Make Fraction type return NotImplemented when it doesn't
366 know how to handle a comparison without loss of precision. Also add
367 correct handling of infinities and nans for comparisons with float.
368
Antoine Pitrouf3637322009-08-06 21:00:37 +0000369- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000370
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000371- Issue #6358: The exit status of a command started with os.popen() was
372 reported differently than it did with python 2.x.
373
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000374- Issue #6323: The pdb debugger did not exit when running a script with a
375 syntax error.
376
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000377- Issue #3392: The subprocess communicate() method no longer fails in select()
378 when file descriptors are large; communicate() now uses poll() when possible.
379
Antoine Pitrou54923952009-07-01 14:53:06 +0000380- Issue #6369: Fix an RLE decompression bug in the binhex module.
381
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000382- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
383
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000384- The deprecated function string.maketrans has been removed.
385
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000386- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
387 sys.path.
388
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000389- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
390
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000391Extension Modules
392-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000393
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000394- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
395
Mark Dickinson40714af2009-10-08 15:59:20 +0000396- Issue #7078: Set struct.__doc__ from _struct.__doc__.
397
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000398- Issue #3366: Add gamma function to math module.
399
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000400- Issue #6877: It is now possible to link the readline extension to the
401 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000402
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000403- Issue #6848: Fix curses module build failure on OS X 10.6.
404
Brett Cannon2f827382009-08-13 19:58:01 +0000405- Fix a segfault that could be triggered by expat with specially formed input.
406
Mark Dickinson1f268282009-07-28 17:22:36 +0000407- Issue #6561: '\d' in a regex now matches only characters with
408 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
409 matched characters with category 'No'.
410
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000411- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000412 failing due to the resize restriction in-place when the object has exported
413 buffers.
414
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000415- Issue #2389: Array objects are now pickled in a portable manner.
416
Martin v. Löwis95c46012009-06-28 09:36:14 +0000417Build
418-----
419
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000420- Issue #5792: Extend the short float repr support to x86 systems using
421 icc or suncc.
422
Mark Dickinsona25b1312009-10-31 10:18:44 +0000423- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
424 compiles correctly under gcc on x86-64. This fixes a reported
425 problem with the --with-tsc build on x86-64.
426
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000427- Issue #6802: Fix build issues on MacOSX 10.6
428
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000429- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
430
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000431- Issue 4601: 'make install' did not set the appropriate permissions on
432 directories.
433
Martin v. Löwis95c46012009-06-28 09:36:14 +0000434- Issue 5390: Add uninstall icon independent of whether file
435 extensions are installed.
436
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000437Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000438------------
439
Brett Cannon757df6e2009-08-30 04:00:12 +0000440- Document that importing a module that has None in sys.modules triggers an
441 ImportError.
442
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000443- Issue #6556: Fixed the Distutils configuration files location explanation
444 for Windows.
445
Brett Cannonb49c70c2009-07-15 04:08:33 +0000446Tests
447-----
448
R. David Murray35768ad2009-11-15 00:23:21 +0000449- Issue #7324: add a sanity check to regrtest argument parsing to
450 catch the case of an option with no handler.
451
R. David Murray7dc72cc2009-11-14 16:13:02 +0000452- Issue #7312: Add a -F flag to run the selected tests in a loop until
453 a test fails. Can be combined with -j.
454
Antoine Pitrou060cee22009-11-13 16:29:04 +0000455- Issue #6551: test_zipimport could import and then destroy some modules of
456 the encodings package, which would make other tests fail further down
457 the road because the internally cached encoders and decoders would point
458 to empty global variables.
459
Antoine Pitrou941ee882009-11-11 20:59:38 +0000460- Issue #7295: Do not use a hardcoded file name in test_tarfile.
461
Antoine Pitrou557934f2009-11-06 22:41:14 +0000462- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
463 primitives such as Lock, RLock, Condition, Event and Semaphore.
464
Brett Cannoncfed0292009-11-05 01:26:57 +0000465- Issue #7248 (part 2): Use a unique temporary directory for importlib source
466 tests instead of tempfile.tempdir. This prevents the tests from sharing state
467 between concurrent executions on the same system.
468
Brett Cannon0ae45112009-11-05 01:17:22 +0000469- Issue #7248: In importlib.test.source.util a try/finally block did not make
470 sure that some referenced objects actually were created in the block before
471 calling methods on the object.
472
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000473- Issue #7222: Make thread "reaping" more reliable so that reference
474 leak-chasing test runs give sensible results. The previous method of
475 reaping threads could return successfully while some Thread objects were
476 still referenced. This also introduces a new private function:
477 :func:`_thread._count()`.
478
R. David Murray27144602009-10-19 15:26:16 +0000479- Issue #7151: fixed regrtest -j so that output to stderr from a test no
480 longer runs the risk of causing the worker thread to fail.
481
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000482- Issue #7055: test___all__ now greedily detects all modules which have an
483 __all__ attribute, rather than using a hardcoded and incomplete list.
484
R. David Murray0bc11ae2009-10-18 22:18:17 +0000485- Issue #7058: Added save/restore for things like sys.argv and cwd to
486 runtest_inner in regrtest, with warnings if the called test modifies them,
487 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000488
Mark Dickinson2e304402009-10-04 18:43:54 +0000489- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
490
Brett Cannon3c273842009-07-20 00:14:29 +0000491- Fixed tests in importlib.test.source.test_abc_loader that were masking
492 the proper exceptions that should be raised for missing or improper code
493 object bytecode.
494
Brett Cannonb49c70c2009-07-15 04:08:33 +0000495- Removed importlib's custom test discovery code and switched to
496 unittest.TestLoader.discover().
497
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000498
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000499What's New in Python 3.1?
500=========================
501
502*Release date: 27-June-2009*
503
504Core and Builtins
505-----------------
506
Mark Dickinsonad195562009-06-24 19:01:32 +0000507- Issue #6334: Fix bug in range length calculation for ranges with
508 large arguments.
509
Raymond Hettinger159eac92009-06-23 20:38:54 +0000510- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
511 because it wasn't recognized as a sequence).
512
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000513Library
514-------
515
Georg Brandld07ac642009-08-13 07:50:57 +0000516- Issue #6126: Fixed pdb command-line usage.
517
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000518- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000519
Facundo Batista10706e22009-06-19 20:34:30 +0000520- Issue #6274: Fixed possible file descriptors leak in subprocess.py
521
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000522- Accessing io.StringIO.buffer now raises an AttributeError instead of
523 io.UnsupportedOperation.
524
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000525- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000526 (On Unix)
527
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000528- Issue #1202: zipfile module would cause a struct.error when attempting to
529 store files with a CRC32 > 2**31-1.
530
Matthias Kloseab2b7552009-06-22 13:05:52 +0000531Extension Modules
532-----------------
533
534- Issue #5590: Remove unused global variable in pyexpat extension.
535
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000536
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000537What's New in Python 3.1 Release Candidate 2?
538=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000539
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000540*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000541
542Core and Builtins
543-----------------
544
Raymond Hettinger94f55832009-06-12 18:40:16 +0000545- Fixed SystemError triggered by "range([], 1, -1)".
546
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000547- Issue #5924: On Windows, a large PYTHONPATH environment variable
548 (more than 255 characters) would be completely ignored.
549
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000550- Issue #4547: When debugging a very large function, it was not always
551 possible to update the lineno attribute of the current frame.
552
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000553- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000554 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000555
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000556Library
557-------
558
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000559- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000560 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000561 Popen. Tested under win32 to build the py-postgresql project.
562
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000563- Issue #6258: Support AMD64 in bdist_msi.
564
R. David Murray58641de2009-06-12 15:33:19 +0000565- Issue #6195: fixed doctest to no longer try to read 'source' data from
566 binary files.
567
Vinay Sajipaffbd872009-06-11 10:11:47 +0000568- Issue #5262: Fixed bug in next rollover time computation in
569 TimedRotatingFileHandler.
570
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000571- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
572 errors property. Additionally, the errors and encoding properties of StringIO
573 are always None now.
574
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000575- Issue #6137: The pickle module now translates module names when loading
576 or dumping pickles with a 2.x-compatible protocol, in order to make data
577 sharing and migration easier. This behaviour can be disabled using the
578 new `fix_imports` optional argument.
579
Raymond Hettinger40925d22009-06-04 18:32:39 +0000580- Removed the ipaddr module.
581
Georg Brandlb54d8012009-06-04 09:11:51 +0000582- Issue #3613: base64.{encode,decode}string are now called
583 base64.{encode,decode}bytes which reflects what type they accept and return.
584 The old names are still there as deprecated aliases.
585
Georg Brandl317185a2009-06-04 09:00:56 +0000586- Issue #5767: Remove sgmlop support from xmlrpc.client.
587
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000588- Issue #6150: Fix test_unicode on wide-unicode builds.
589
Antoine Pitrouc06de472009-05-30 21:04:26 +0000590- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
591 parameters.
592
Martin v. Löwis79b13872009-06-01 04:13:14 +0000593Windows
594-------
595
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000596- Issue #6221: Delete test registry key before running the test.
597
Martin v. Löwis79b13872009-06-01 04:13:14 +0000598- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
599
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000600C-API
601-----
602
603- Issue #5735: Python compiled with --with-pydebug should throw an
604 ImportError when trying to import modules compiled without
605 --with-pydebug, and vice-versa.
606
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000607
Brett Cannonc6d936e2009-06-07 20:09:53 +0000608Build
609-----
610
611- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
612 added LIBS to OS X framework builds.
613
Ronald Oussoren99aab652009-06-08 21:22:57 +0000614- Issue #5809: Specifying both --enable-framework and --enable-shared is
615 an error. Configure now explicity tells you about this.
616
617
Brett Cannonc6d936e2009-06-07 20:09:53 +0000618
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000619What's New in Python 3.1 release candidate 1?
620=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000621
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000622*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000623
624Core and Builtins
625-----------------
626
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000627- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
628 of the command line.
629
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000630- Issue #6012: Add cleanup support to O& argument parsing.
631
Eric Smith41669ca2009-05-23 14:23:22 +0000632- Issue #6089: Fixed str.format with certain invalid field specifiers
633 that would raise SystemError.
634
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000635- Issue #5982: staticmethod and classmethod now expose the wrapped
636 function with __func__.
637
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000638- Added support for multiple context managers in the same with-statement.
639 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000640
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000641- Issue #5829: complex("1e500") no longer raises OverflowError. This
642 makes it consistent with float("1e500") and interpretation of real
643 and imaginary literals.
644
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000645- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
646
R. David Murraydd226ea2009-05-13 12:27:21 +0000647- Issue #5994: the marshal module now has docstrings.
648
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000649- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
650 (1) inf and nan strings with trailing whitespace were incorrectly
651 rejected; (2) parsing of strings representing infinities and nans
652 was locale aware; and (3) the interpretation of fromhex('-nan')
653 didn't match that of float('-nan').
654
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000655Library
656-------
657
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000658- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
659
R. David Murrayfb123912009-05-28 18:19:00 +0000660- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
661
R. David Murray1f1b9d32009-05-27 20:56:59 +0000662- Issue #6121: pydoc now ignores leading and trailing spaces in the
663 argument to the 'help' function.
664
Georg Brandlfaf41492009-05-26 18:31:11 +0000665- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
666 arguments for strings with a space in them.
667
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000668- collections.namedtuple() was not working with the following field
669 names: cls, self, tuple, itemgetter, and property.
670
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000671- In unittest, using a skipping decorator on a class is now equivalent to
672 skipping every test on the class. The ClassTestSuite class has been removed.
673
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000674- Issue #6050: Don't fail extracting a directory from a zipfile if
675 the directory already exists.
676
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000677- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
678 than an int, which makes some operations possible under 64-bit Linux (e.g.
679 DN_MULTISHOT with F_NOTIFY).
680
Antoine Pitrou716c4442009-05-23 19:04:03 +0000681- Issue #5761: Add the name of the underlying file to the repr() of various
682 IO objects.
683
R. David Murraycaa27b72009-05-23 18:49:56 +0000684- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
685 by Musashi Tamura, tests by Marcin Bachry.
686
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000687- Issue #1983: Fix functions taking or returning a process identifier to use
688 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
689 a process identifier type wider than the standard C integer type.
690
R. David Murray87e20742009-05-23 01:30:26 +0000691- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
692 Patch by Farhan Ahmad, test by Marcin Bachry.
693
Antoine Pitrou6e610062009-05-15 17:04:50 +0000694- Issue #2116: Weak references and weak dictionaries now support copy()ing and
695 deepcopy()ing.
696
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000697- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
698
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000699- Issue #5918: Fix a crash in the parser module.
700
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000701- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
702
Antoine Pitroue4501852009-05-14 18:55:55 +0000703- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
704 library. This means, for example, that opening an UTF-16 text file in
705 append mode doesn't add a BOM at the end of the file if the file isn't
706 empty.
707
R. David Murray74b89242009-05-13 17:33:03 +0000708- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
709 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
710 corrects a pydoc regression.
711
R. David Murray99352742009-05-07 18:24:38 +0000712- Issue 5955: aifc's close method did not close the file it wrapped,
713 now it does. This also means getfp method now returns the real fp.
714
Benjamin Peterson932073a2009-05-23 16:14:33 +0000715Installation
716------------
717
718- Issue #6047: fullinstall has been removed because Python 3's executable will
719 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000720
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000721- Lib/smtpd.py is no longer installed as a script.
722
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000723Extension Modules
724-----------------
725
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000726- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000727
Martin v. Löwise23c8682009-05-29 16:01:34 +0000728- Issue #4873: Fix resource leaks in error cases of pwd and grp.
729
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000730- Issue #6093: Fix off-by-one error in locale.strxfrm.
731
Benjamin Peterson744af442009-05-23 18:51:49 +0000732- The _functools and _locale modules are now built into the libpython shared
733 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000734
Antoine Pitrou20327222009-05-24 20:39:11 +0000735Build
736-----
737
738- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
739 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
740 Clinton Roy.
741
Brett Cannon1262e7c2009-05-11 01:47:11 +0000742Tests
743-----
744
745- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
746 tests on darwin even when the OS was installed on a case-sensitive
747 filesystem. Also fixed tests that should not be run when
748 sys.dont_write_bytecode is true.
749
750
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000751What's New in Python 3.1 beta 1?
752================================
753
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000754*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000755
756Core and Builtins
757-----------------
758
Mark Dickinson865e01a2009-05-07 16:37:01 +0000759- Issue #5914: Add new C API function PyOS_string_to_double, and
760 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
761
Eric Smith741191f2009-05-06 13:08:15 +0000762- Issue #3382: float.__format__, complex.__format__, and %-formatting
763 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
764 affects nan -> NAN and inf -> INF.
765
Mark Hammond5a607a32009-05-06 08:04:54 +0000766- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
767 in all operations, including splitdrive, split, etc. splitunc() now issues
768 a PendingDeprecation warning.
769
Eric Smith63376222009-05-05 14:04:18 +0000770- Issue #5920: For float.__format__, change the behavior with the
771 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
772 to be like 'g' but with at least one decimal point and with a
773 default precision of 12. Previously, the behavior the same but with
774 a default precision of 6. This more closely matches str(), and
775 reduces surprises when adding alignment flags to the empty
776 presentation type. This also affects the new complex.__format__ in
777 the same way.
778
Martin v. Löwis011e8422009-05-05 04:43:17 +0000779- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
780
R. David Murrayb18500d2009-05-04 22:59:07 +0000781- Issue #5890: in subclasses of 'property' the __doc__ attribute was
782 shadowed by classtype's, even if it was None. property now
783 inserts the __doc__ into the subclass instance __dict__.
784
Antoine Pitrou244651a2009-05-04 18:56:13 +0000785- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
786 sequences. Patch by Nick Barnes and Victor Stinner.
787
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000788- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000789
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000790- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
791 received a new method, detach(). detach() disconnects the underlying stream
792 from the buffer or text IO and returns it.
793
Mark Dickinson33841c32009-05-01 15:37:04 +0000794- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
795 floats with absolute value over 1e50. Also remove length
796 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
797 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000798
Eric Smith741191f2009-05-06 13:08:15 +0000799- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000800 format(complex(1, 2./3), '.5') now produces a sensible result.
801
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000802- Issue #5864: Fix empty format code formatting for floats so that it
803 never gives more than the requested number of significant digits.
804
Eric Smith6dc46f52009-04-27 20:39:49 +0000805- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
806 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
807
Eric Smithcc32a112009-04-26 21:35:14 +0000808- Issue #5835: Deprecate PyOS_ascii_formatd.
809
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000810- Issue #4971: Fix titlecase for characters that are their own
811 titlecase, but not their own uppercase.
812
Benjamin Peterson193152c2009-04-25 01:08:45 +0000813- Issue #5283: Setting __class__ in __del__ caused a segfault.
814
Mark Dickinsonad476da2009-04-23 19:14:16 +0000815- Issue #5816: complex(repr(z)) now recovers z exactly, even when
816 z involves nans, infs or negative zeros.
817
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000818- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000819
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000820- Issue #1869 (and many duplicates): make round(x, n) correctly
821 rounded for a float x, by using the decimal <-> binary conversions
822 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
823 consistently agrees with format(x, '.2f').
824
Benjamin Petersonae937c02009-04-18 20:54:08 +0000825- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
826 some builtin types.
827
Eric Smith0923d1d2009-04-16 20:16:10 +0000828- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
829
Eric Smith35e84722009-04-16 20:21:28 +0000830- Issue #5515: str.format() type 'n' combined with commas and leading
831 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000832
833- Implement PEP 378, Format Specifier for Thousands Separator, for
834 floats.
835
Mark Dickinson3370cce2009-04-17 22:40:53 +0000836- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000837 1e11, not 1e12. This avoids printing 13 significant digits in
838 situations where only 12 of them are correct. Example problem
839 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
840 long time.)
841
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000842- Issue #1580: On most platforms, use a 'short' float repr: for a
843 finite float x, repr(x) now outputs a string based on the shortest
844 sequence of decimal digits that rounds to x. Previous behaviour was
845 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000846 Another minor difference is that the new repr switches to
847 exponential notation at 1e16 instead of the previous 1e17; this
848 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000849
850 There's a new sys attribute sys.float_repr_style, which takes
851 the value 'short' to indicate that we're using short float repr,
852 and 'legacy' if the short float repr isn't available for one
853 reason or another.
854
855 The float repr change involves incorporating David Gay's 'perfect
856 rounding' code into the Python core (it's in Python/dtoa.c). As a
857 secondary consequence, all string-to-float and float-to-string
858 conversions (including all float formatting operations) will be
859 correctly rounded on these platforms.
860
861 See issue 1580 discussions for details of platforms for which
862 this change does not apply.
863
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000864- Issue #5759: float() didn't call __float__ on str subclasses.
865
Georg Brandlabc38772009-04-12 15:51:51 +0000866- The string.maketrans() function is deprecated; there is a new static method
867 maketrans() on the bytes and bytearray classes. This removes confusion about
868 the types string.maketrans() is supposed to work with, and mirrors the
869 methods available on the str class.
870
R. David Murraydc6da8a2009-04-09 22:16:43 +0000871- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
872 its clarity and its speed.
873
Matthias Klose091c7b12009-04-07 13:24:27 +0000874- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
875 to avoid compiler warnings.
876
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000877- Issue #3739: The unicode-internal encoder now reports the number of characters
878 consumed like any other encoder (instead of the number of bytes).
879
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000880Installation
881------------
882
883- Issue #5756: Install idle and pydoc with a 3 suffix.
884
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000885Library
886-------
887
Martin v. Löwis403117a2009-05-24 19:19:17 +0000888- Issue #5311: bdist_msi can now build packages that do not depend on a
889 specific Python version.
890
Raymond Hettingereb816952009-05-29 01:22:18 +0000891- Issue #5150: IDLE's format menu now has an option to strip trailing
892 whitespace.
893
Vinay Sajipaffbd872009-06-11 10:11:47 +0000894- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000895 the right type checkings anymore.
896
Thomas Heller00cfc372009-05-05 19:04:40 +0000897- Issue #4875: On win32, ctypes.util.find_library does no longer
898 return directories.
899
Georg Brandl243ad662009-05-05 09:00:19 +0000900- Issue #5142: Add the ability to skip modules while stepping to pdb.
901
Georg Brandl991f9202009-05-05 08:31:54 +0000902- Issue #1309567: Fix linecache behavior of stripping subdirectories when
903 looking for files given by a relative filename.
904
Georg Brandleaa84ef2009-05-05 08:14:33 +0000905- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
906 turtle demos in Demo/turtle.
907
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000908- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
909 extracting a file to the root directory.
910
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000911- Issue #5913: os.listdir() should fail for empty path on windows.
912
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000913- Issue #5084: unpickling now interns the attribute names of pickled objects,
914 saving memory and avoiding growth in size of subsequent pickles. Proposal
915 and original patch by Jake McGuire.
916
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000917- The json module now works exclusively with str and not bytes.
918
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000919- Issue #3959: The ipaddr module has been added to the standard library.
920 Contributed by Google.
921
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000922- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
923 error when a named pipe is encountered, rather than blocking infinitely.
924
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000925- Issue #5857: tokenize.tokenize() now returns named tuples.
926
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000927- Issue #4305: ctypes should now build again on mipsel-linux-gnu
928
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000929- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
930 string is already in normalized form, by performing a quick check beforehand.
931 Original patch by Rauli Ruohonen.
932
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000933- Issue #5853: calling a function of the mimetypes module from several threads
934 at once could hit the recursion limit if the mimetypes database hadn't been
935 initialized before.
936
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000937- Issue #5854: Updated __all__ to include some missing names and remove some
938 names which should not be exported.
939
Thomas Heller34596a92009-04-24 20:50:00 +0000940- Issue #3102: All global symbols that the _ctypes extension defines
941 are now prefixed with 'Py' or '_ctypes'.
942
943- Issue #5041: ctypes does now allow pickling wide character.
944
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000945- Issue #5812: For the two-argument form of the Fraction constructor,
946 Fraction(m, n), m and n are permitted to be arbitrary Rational
947 instances.
948
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000949- Issue #5812: Fraction('1e6') is valid: more generally, any string
950 that's valid for float() is now valid for Fraction(), with the
951 exception of strings representing NaNs and infinities.
952
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000953- Issue #5734: BufferedRWPair was poorly tested and had several glaring
954 bugs. Patch by Brian Quinlan.
955
R. David Murray9e94ddf2009-04-13 17:06:33 +0000956- Issue #1161031: fix readwrite select flag handling: POLLPRI now
957 results in a handle_expt_event call, not handle_read_event, and POLLERR
958 and POLLNVAL now call handle_close, not handle_expt_event. Also,
959 dispatcher now has an 'ignore_log_types' attribute for suppressing
960 log messages, which is set to 'warning' by default.
961
Matthias Klosea3d29e82009-04-07 13:13:10 +0000962- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
963 new arguments introduced in 2.5.
964
Walter Dörwald1b08b302009-04-25 14:13:56 +0000965- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
966 makeunicodedata.py and regenerated the Unicode database (This fixes
967 u'\u1d79'.lower() == '\x00').
968
Matthias Klose535336f2009-04-07 13:49:45 +0000969Extension Modules
970-----------------
971
Benjamin Petersone04b6272009-05-04 22:25:21 +0000972- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
973 pwd.
974
Mark Dickinsonea835e72009-04-19 20:40:33 +0000975- Issue #5463: In struct module, remove deprecated float coercion
976 for integer type codes: struct.pack('L', 0.3) should now raise
977 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
978 The version number has been bumped to 0.3.
979
Matthias Klose535336f2009-04-07 13:49:45 +0000980- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
981 using Berkley-DB.
982
Nick Coghlan47384702009-04-22 16:13:36 +0000983Tests
984-----
985
986- Issue #5354: New test support function import_fresh_module() makes
987 it easy to import both normal and optimised versions of modules.
988 test_heapq and test_warnings have been adjusted to use it, tests for
989 other modules with both C and Python implementations in the stdlib
990 can be adjusted to use it over time.
991
Walter Dörwald4ba80132009-04-25 12:48:43 +0000992- Issue #5837: Certain sequences of calls to set() and unset() for
993 support.EnvironmentVarGuard objects restored the environment variables
994 incorrectly on __exit__.
995
Benjamin Petersonb173f782009-05-05 22:31:58 +0000996C-API
997-----
998
999- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1000
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001001
Benjamin Petersond1735892009-03-07 18:46:21 +00001002What's New in Python 3.1 alpha 2?
1003=================================
1004
Benjamin Peterson88f14352009-04-04 21:06:52 +00001005*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001006
1007Core and Builtins
1008-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001009
Eric Smith1e1d7d22009-04-03 22:25:33 +00001010- Implement PEP 378, Format Specifier for Thousands Separator, for
1011 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001012
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001013- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1014
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001015- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1016 byte, and the 'C' code only accepts a unicode character.
1017
Georg Brandl406b3d82009-04-11 21:24:37 +00001018- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1019 when hitting the recursion limit under certain circumstances.
1020
Brett Cannon0759dd62009-04-01 18:13:07 +00001021- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1022
Georg Brandlab6f2f62009-03-31 04:16:10 +00001023- Fix a segfault when running test_exceptions with coverage, caused by
1024 insufficient checks in accessors of Exception.__context__.
1025
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001026- Issue #5604: non-ASCII characters in module name passed to
1027 imp.find_module() were converted to UTF-8 while the path is
1028 converted to the default filesystem encoding, causing nonsense.
1029
Benjamin Peterson09832742009-03-26 17:15:46 +00001030- Issue #5126: str.isprintable() returned False for space characters.
1031
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001032- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1033 the end sys.path, for compatibility with the system install of Python.
1034
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001035- Issue #4688: Add a heuristic so that tuples and dicts containing only
1036 untrackable objects are not tracked by the garbage collector. This can
1037 reduce the size of collections and therefore the garbage collection overhead
1038 on long-running programs, depending on their particular use of datatypes.
1039
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001040- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1041 improve its performance. Long divisions and remainder operations
1042 are now between 50% and 150% faster.
1043
Mark Dickinsonbd792642009-03-18 20:06:12 +00001044- Issue #4258: Make it possible to use base 2**30 instead of base
1045 2**15 for the internal representation of integers, for performance
1046 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1047 --enable-big-digits option to configure, which overrides the
1048 default. Add sys.int_info structseq to provide information about
1049 the internal format.
1050
Mark Dickinson081dfee2009-03-18 14:47:41 +00001051- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1052 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1053 and sizeof(Py_UNICODE) == 2.
1054
Eric Smith8ec90442009-03-14 12:29:34 +00001055- Issue #5237: Allow auto-numbered fields in str.format(). For
1056 example: '{} {}'.format(1, 2) == '1 2'.
1057
Antoine Pitrou652e7072009-03-13 19:25:20 +00001058- Issue #5392: when a very low recursion limit was set, the interpreter would
1059 abort with a fatal error after the recursion limit was hit twice.
1060
Matthias Klose042f1332009-04-04 14:32:42 +00001061- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1062 short file names.
1063
Benjamin Petersond1735892009-03-07 18:46:21 +00001064Library
1065-------
1066
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001067- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001068 mailbox.MH.get_message().
1069
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001070- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1071 error substitutions from non-strict codec error callbacks in
1072 incrementalencoder and StreamWriter.
1073
Georg Brandl33c28812009-04-01 23:07:29 +00001074- Issue #5656: Fix the coverage reporting when running the test suite with
1075 the -T argument.
1076
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001077- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1078
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001079- Issue #5624: Fix the _winreg module name still used in several modules.
1080
Benjamin Petersona1b49012009-03-31 23:11:32 +00001081- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1082
Jesse Nollera9314042009-03-31 22:36:44 +00001083- Issue #5619: Multiprocessing children disobey the debug flag and causes
1084 popups on windows buildbots. Patch applied to work around this issue.
1085
Jesse Noller32d68c22009-03-31 18:48:42 +00001086- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1087
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001088- Issue #5387: Fixed mmap.move crash by integer overflow.
1089
Jesse Nollerf8d00852009-03-31 03:25:07 +00001090- Issue #5261: Patch multiprocessing's semaphore.c to support context
1091 manager use: "with multiprocessing.Lock()" works now.
1092
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001093- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1094 bytes already but the failure was non-obvious.
1095
Jesse Noller7af4ef82009-03-30 16:47:15 +00001096- Issue #5177: Multiprocessing's SocketListener class now uses
1097 socket.SO_REUSEADDR on all connections so that the user no longer needs
1098 to wait 120 seconds for the socket to expire.
1099
Benjamin Peterson48e24782009-03-29 13:02:52 +00001100- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1101
Antoine Pitrou66994e12009-03-29 00:45:26 +00001102- Issue #1174606: Calling read() without arguments of an unbounded file
1103 (typically /dev/zero under Unix) could crash the interpreter.
1104
Benjamin Peterson59406a92009-03-26 17:10:29 +00001105- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1106 io.BufferedRandom have been deprecated for removal in Python 3.2.
1107
Lars Gustäbel42e00912009-03-22 20:34:29 +00001108- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1109 forever on incomplete input. That caused tarfile.open() to hang when used
1110 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1111 partial bzip2 compressed data.
1112
Mark Dickinson79f52032009-03-17 23:12:51 +00001113- Issue #2110: Add support for thousands separator and 'n' type
1114 specifier to Decimal.__format__
1115
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001116- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1117 '>' alignment characters.
1118
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001119- The error detection code in FileIO.close() could fail to reflect the `errno`
1120 value, and report it as -1 instead.
1121
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001122- Issue #5016: FileIO.seekable() could return False if the file position
1123 was negative when truncated to a C int. Patch by Victor Stinner.
1124
Mark Dickinsonae681df2009-03-21 10:26:31 +00001125Extension Modules
1126-----------------
1127
Benjamin Petersone099b372009-04-04 17:09:35 +00001128- Issue #5391: mmap now deals exclusively with bytes.
1129
Mark Dickinsonae681df2009-03-21 10:26:31 +00001130- Issue #5463: In struct module, remove deprecated overflow wrapping
1131 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001132 struct.error instead of returning b'\xff\xff\xff\xff'. The
1133 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1134 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001135
Benjamin Petersond1735892009-03-07 18:46:21 +00001136
Benjamin Petersona58a6262009-03-07 16:34:40 +00001137What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001138================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001139
Benjamin Petersona58a6262009-03-07 16:34:40 +00001140*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001141
1142Core and Builtins
1143-----------------
1144
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001145- The io module has been reimplemented in C for speed.
1146
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001147- Give dict views an informative __repr__.
1148
Eric Smith5e5c0db2009-02-20 14:25:03 +00001149- Issue #5247: Improve error message when unknown format codes are
1150 used when using str.format() with str, int, and float arguments.
1151
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001152- Issue #5249: time.strftime returned malformed string when format string
1153 contained non ascii character on windows.
1154
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001155- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1156 source has already been decoded into str.
1157
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001158- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1159 rotating the object pointer by 4 bits to the right.
1160
Mark Dickinson87ec0852009-02-09 17:15:59 +00001161- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1162 it now forces its argument to double before testing for infinity.
1163
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001164- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1165 returns a non-number type.
1166
Benjamin Peterson87618552009-02-08 15:00:52 +00001167- Issue #5182: Removed memoryview.__str__.
1168
Mark Dickinsonc008a172009-02-01 13:59:22 +00001169- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1170 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001171 the type definition cmpfunc. The tp_compare slot has been renamed
1172 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001173
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001174- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001175 were suppressing all exceptions. These include list() and bytearray().
1176
Mark Dickinson1124e712009-01-28 21:25:58 +00001177- Issue #4707: round(x, n) now returns an integer if x is an integer.
1178 Previously it returned a float.
1179
Antoine Pitroub52ec782009-01-25 16:34:23 +00001180- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1181 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1182 evaluation loop is compiled with a new dispatch mechanism which gives
1183 speedups of up to 20%, depending on the system, on various benchmarks.
1184
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001185- Issue #4874: Most builtin decoders now reject unicode input.
1186
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001187- Issue #4842: Don't allow trailing 'L' when constructing an integer
1188 from a string.
1189
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001190- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1191
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001192- Issue #4838: When a module is deallocated, free the memory backing the
1193 optional module state data.
1194
Mark Dickinson8055afd2009-01-17 10:04:45 +00001195- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1196 type to (void *).
1197
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001198- Issue #4935: The overflow checking code in the expandtabs() method common
1199 to str, bytes and bytearray could be optimized away by the compiler, letting
1200 the interpreter segfault instead of raising an error.
1201
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001202- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1203 __next__ method.
1204
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001205- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1206 function no longer attempt to call the __long__ slot to convert an object
1207 to an integer. Only the __int__ and __trunc__ slots are examined.
1208
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001209- Issue #4893: Use NT threading on CE.
1210
Martin v. Löwisec59d042009-01-12 07:59:10 +00001211- Issue #4915: Port sysmodule to Windows CE.
1212
Antoine Pitrouab868312009-01-10 15:40:25 +00001213- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1214 common cases are optimized thanks to a dedicated fast path and a moderate
1215 amount of loop unrolling.
1216
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001217- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1218 collecting the oldest generation) so that allocating lots of objects without
1219 destroying them does not show quadratic performance. Based on a proposal by
1220 Martin von Löwis at
1221 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1222
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001223- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001224 having been closed (for instance, a read() call could return some
1225 previously buffered data). Patch by Dmitry Vasiliev.
1226
Antoine Pitrou05608432009-01-09 18:53:14 +00001227- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1228 flag to work properly. Furthermore, when specifying -u, the text stdout
1229 and stderr streams have line-by-line buffering enabled (the default being
1230 to buffer arbitrary chunks of data).
1231
Raymond Hettinger35631532009-01-09 03:58:09 +00001232- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1233 instead of ints (reducing its size from 4 to 8 times thereby reducing
1234 Python's overall memory).
1235
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001236- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1237 an existing .py counterpart, override the co_filename attributes of all
1238 code objects if the original filename is obsolete (which can happen if the
1239 file has been renamed, moved, or if it is accessed through different paths).
1240 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1241
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001242- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1243 one byte. Also fixes the meaning of len() so that it returns the number of
1244 items, rather than the size in bytes.
1245
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001246- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1247
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001248- Issue #4747: When the terminal does not use utf-8, executing a script with
1249 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1250
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001251- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001252 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001253
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001254- Issue #3680: Reference cycles created through a dict, set or deque iterator
1255 did not get collected.
1256
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001257- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1258 where the tp_hash and tp_dict slots are both NULL.
1259
Georg Brandlccc47b62008-12-28 11:44:14 +00001260- Issue #4759: None is now allowed as the first argument of
1261 bytearray.translate(). It was always allowed for bytes.translate().
1262
Skip Montanaro80072cb2008-12-23 03:51:14 +00001263- Added test case to ensure attempts to read from a file opened for writing
1264 fail.
1265
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001266- Issue #3106: Speedup some comparisons (str/str and int/int).
1267
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001268- Issue #2183: Simplify and optimize bytecode for list, dict and set
1269 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1270
Antoine Pitrou621601a2008-12-17 23:18:19 +00001271- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1272 print elapsed times, not only when some objects are uncollectable /
1273 unreachable. Original patch by Neil Schemenauer.
1274
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001275- Issue #3439: Add a bit_length method to int.
1276
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001277- Issue #2173: When getting device encoding, check that return value of
1278 nl_langinfo is not the empty string. This was causing silent build
1279 failures on OS X.
1280
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001281- Issue #4597: Fixed several opcodes that weren't always propagating
1282 exceptions.
1283
1284- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001285 context manager returns a value that cannot be converted to a bool.
1286
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001287- Issue #4445: Replace "sizeof(PyBytesObject)" with
1288 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1289 bytes instances. On a typical machine this saves 3 bytes of memory
1290 (on average) per allocation of a bytes instance.
1291
Christian Heimesa872de52008-12-05 08:26:55 +00001292- Issue #4533: File read operation was dreadfully slow due to a slowly
1293 growing read buffer. Fixed by using the same growth rate algorithm as
1294 Python 2.x.
1295
Antoine Pitrou5504e892008-12-06 21:27:53 +00001296- Issue #4509: Various issues surrounding resize of bytearray objects to
1297 which there are buffer exports (e.g. memoryview instances).
1298
Georg Brandlf9734072008-12-07 15:30:06 +00001299- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1300 method on file objects with closefd=False. The file descriptor is still
1301 kept open but the file object behaves like a closed file. The ``FileIO``
1302 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001303
Antoine Pitroubc420402008-12-07 20:14:49 +00001304- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1305 larger than 1.
1306
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001307- Issue #4748: Lambda generators no longer return a value.
1308
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001309- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1310
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001311- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1312 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1313 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1314 of using the replace error handler in PyUnicode_DecodeUTF8().
1315
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001316Library
1317-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001318
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001319- Issue #7071: byte-compilation in Distutils is now done with respect to
1320 sys.dont_write_bytecode.
1321
Tarek Ziadé978cca62009-10-24 13:38:27 +00001322- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1323 raised. Initial patch by Ezio Melotti.
1324
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001325- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001326 Distutils.
1327
Tarek Ziadé31d46072009-09-21 13:55:19 +00001328- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1329
Tarek Ziadé165581c2009-09-09 08:48:07 +00001330- Issue #6163: Fixed HP-UX runtime library dir options in
1331 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1332 Michael Haubenwallner.
1333
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001334- Issue #6693: New functions in site.py to get user/global site packages paths.
1335
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001336- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1337 opening an empty or very small file.
1338
1339- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001340 behavior is similar when used with -O.
1341
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001342- unittest has been split up into a package. All old names should still work.
1343
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001344- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1345 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1346 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1347 for the obsolete get_versions() functions.
1348
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001349- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1350
1351- Issue #6314: logging: Extra checks on the "level" argument in more places.
1352
1353- Issue #2622: Fixed an ImportError when importing email.messsage from a
1354 standalone application built with py2exe or py2app.
1355
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001356- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001357
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001358- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001359 attribute.
1360
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001361- Issue #6413: Fixed the log level in distutils.dist for announce.
1362
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001363- Issue #6403: Fixed package path usage in build_ext.
1364
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001365- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1366 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1367 descriptor errors
1368
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001369- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001370 extension in a subdirectory if the extension name had dots.
1371
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001372- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001373 unixcompiler. Original patch by Sridhar Ratnakumar.
1374
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001375- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1376 httplib, allowing the usage of http_proxy.
1377
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001378- Issue #6287: Added the license field in Distutils documentation.
1379
Tarek Ziadéff543362009-06-11 09:25:41 +00001380- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1381
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001382- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1383 in Makefiles. This prevents compile errors when using syntax like:
1384 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1385
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001386- Issue #6131: test_modulefinder leaked when run after test_distutils.
1387 Patch by Hirokazu Yamamoto.
1388
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001389- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1390
Vinay Sajipaffbd872009-06-11 10:11:47 +00001391- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001392 and tests on pywin32 by Tim Golden.
1393
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001394- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1395
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001396- Issue #6046: Fixed the library extension when distutils build_ext is used
1397 inplace. Initial patch by Roumen Petrov.
1398
Vinay Sajipaffbd872009-06-11 10:11:47 +00001399- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001400 subcommand.
1401
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001402- Issue #6022: a test file was created in the current working directory by
1403 test_get_outputs in Distutils.
1404
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001405- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1406 inplace option. Initial patch by kxroberto.
1407
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001408- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1409 for old-style extensions.
1410
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001411- Issue #5976: Fixed Distutils test_check_environ.
1412
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001413- Issue #5941: Distutils build_clib command was not working anymore because
1414 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1415 Makefile besides AR and make Distutils use it. Original patch by David
1416 Cournapeau.
1417
R. David Murrayb507d2e2009-04-29 15:34:32 +00001418- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1419
Vinay Sajipaffbd872009-06-11 10:11:47 +00001420- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001421 anymore.
1422
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001423- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001424 sysconfig.get_config_vars.
1425
Tarek Ziadé23336082009-04-25 12:39:56 +00001426- Issue #4951: Fixed failure in test_httpservers.
1427
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001428- Issue #5795: Fixed test_distutils failure on Debian ppc.
1429
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001430- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1431
Georg Brandl1f9fa312009-04-27 16:42:58 +00001432- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1433 a value in SafeConfigParser.
1434
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001435- Issue #5732: added a new command in Distutils: check.
1436
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001437- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001438 platforms. Initial patch by Paul Moore.
1439
Tarek Ziadéf6370502009-04-05 22:57:21 +00001440- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1441 Initial fix by Steven Bethard.
1442
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001443- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1444 Initial fix by Wayne Davison.
1445
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001446- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001447
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001448- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001449
Brett Cannonf47e84c2009-04-01 16:06:01 +00001450- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1451 instead of performing them in functions. Helps prevent import deadlocking in
1452 threads.
1453
R. David Murraye59482e2009-04-01 03:42:00 +00001454- Issue #2522: locale.format now checks its first argument to ensure it has
1455 been passed only one pattern, avoiding mysterious errors where it appeared
1456 that it was failing to do localization.
1457
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001458- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1459 Brandl.
1460
Antoine Pitrou350370c2009-03-14 00:13:13 +00001461- Issue #1222: locale.format() bug when the thousands separator is a space
1462 character.
1463
Tarek Ziadé516db942009-03-11 12:52:00 +00001464- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1465 Tim Golden.
1466
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001467- collections.deque() objects now have a read-only attribute called maxlen.
1468
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001469- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1470 it is has been populated and properly configured in order to prevent
1471 window flashing.
1472
Guilherme Polo56f5be52009-03-07 01:54:57 +00001473- Issue #4792: Prevent a segfault in _tkinter by using the
1474 guaranteed to be safe interp argument given to the PythonCmd in place of
1475 the Tcl interpreter taken from a PythonCmd_ClientData.
1476
1477- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1478
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001479- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1480 Original patch by Akira Kitada.
1481
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001482- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1483
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001484- Issue #5385: Fixed mmap crash after resize failure on windows.
1485
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001486- Issue #5179: Fixed subprocess handle leak on failure on windows.
1487
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001488- PEP 372: Added collections.OrderedDict().
1489
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001490- The _asdict() for method for namedtuples now returns an OrderedDict().
1491
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001492- configparser now defaults to using an ordered dictionary.
1493
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001494- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1495 import guess_extension`` was used.
1496
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001497- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1498 with same tagname but larger size than first map. (Windows)
1499
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001500- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1501 overrun.
1502
Tarek Ziadéf0721222009-02-28 10:16:43 +00001503- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1504 bdist_rpm command.
1505
1506- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1507
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001508- Issue #5052: make Distutils compatible with 2.3 again.
1509
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001510- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1511 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001512
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001513- Issue #5287: Add exception handling around findCaller() call to help out
1514 IronPython.
1515
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001516- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1517 The file was resized to wrong size.
1518
1519- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1520
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001521- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001522 from the package_data and the data_files metadata.
1523
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001524- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001525 support.TempdirManager, to avoid writing in the tests directory.
1526
Tarek Ziadé68c50952009-02-13 23:04:17 +00001527- Issue #4524: distutils build_script command failed with --with-suffix=3.
1528 Initial patch by Amaury Forgeot d'Arc.
1529
Tarek Ziadé811d6242009-02-13 22:26:15 +00001530- Issue #2461: added tests for distutils.util
1531
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001532- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1533 which inherited from numbers.py which did not have __slots__ defined. The
1534 numbers hierarchy now has its own __slots__ declarations.
1535
Antoine Pitroub353c122009-02-11 00:39:14 +00001536- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1537 encoding.
1538
Thomas Heller465c8022009-02-10 18:59:04 +00001539- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1540 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1541
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001542- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1543 under NT and OS2. Patch by Philip Jenvey.
1544
Brett Cannonbefb14f2009-02-10 02:10:16 +00001545- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1546 to be recreated. This avoids a timing hole thanks to the old reliance on the
1547 ctime of the files involved.
1548
Guilherme Polob681df42009-02-09 22:33:59 +00001549- Issue #5122: Synchronize tk load failure check to prevent a potential
1550 deadlock.
1551
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001552- Issue #1818: collections.namedtuple() now supports a keyword argument
1553 'rename' which lets invalid fieldnames be automatically converted to
1554 positional names in the form, _1, _2, ...
1555
Guilherme Poloae098992009-02-09 16:44:24 +00001556- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1557
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001558- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1559 public documented method ``ZipImporter.get_filename()``.
1560
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001561- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1562 the execution of packages by looking for and executing a ``__main__``
1563 submodule when a package name is supplied. Initial patch by Andi
1564 Vajda.
1565
Guilherme Polo491aee22009-02-06 23:16:11 +00001566- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1567 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1568 Tkapp_Call when calling from a thread different than the one that created
1569 the Tcl interpreter. Patch by Robert Hancock.
1570
Eric Smith0e5b5622009-02-06 01:32:42 +00001571- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1572 Ross Light.
1573
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001574- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001575 environment/Makefile. Patch by Douglas Greiman.
1576
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001577- Issue #1276768: The verbose option was not used in the code of
1578 distutils.file_util and distutils.dir_util.
1579
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001580- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001581 --enabled-shared activated. Initial patch by Dave Peterson.
1582
Guilherme Polo7f423952009-02-02 21:17:09 +00001583- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1584
Raymond Hettinger85602262009-02-03 04:19:10 +00001585- The shelve module now defaults to pickle protocol 3.
1586
Brett Cannone61426e2009-01-30 01:31:34 +00001587- Fix a bug in the trace module where a bytes object from co_lnotab had its
1588 items being passed through ord().
1589
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001590- Issue #2047: shutil.move() could believe that its destination path was
1591 inside its source path if it began with the same letters (e.g. "src" vs.
1592 "src.new").
1593
Guilherme Polo5f238482009-01-28 14:41:10 +00001594- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1595
Raymond Hettinger89e12962009-01-26 02:09:03 +00001596- Removed isSequenceType(), isMappingType, and isNumberType() from the
1597 operator module; use the abstract base classes instead. Also removed
1598 the repeat() function; use mul() instead.
1599
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001600- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001601 collections.namedtuple() relied on __name__ being defined.
1602
1603- Backport importlib from Python 3.1. Only the import_module() function has
1604 been backported to help facilitate transitions from 2.7 to 3.1.
1605
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001606- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1607 the tar file was overriden by the gztar one.
1608
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001609- Issue #4863: distutils.mwerkscompiler has been removed.
1610
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001611- Added a new itertools functions: combinations_with_replacement()
1612 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001613
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001614- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001615 allowed non-integer arguments.
1616
Jesse Noller41faa542009-01-25 03:45:53 +00001617- Fix and properly document the multiprocessing module's logging
1618 support, expose the internal levels and provide proper usage
1619 examples.
1620
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001621- Issue #1672332: fix unpickling of subnormal floats, which was
1622 producing a ValueError on some platforms.
1623
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001624- Issue #3881: Help Tcl to load even when started through the
1625 unreadable local symlink to "Program Files" on Vista.
1626
Martin v. Löwis59e47792009-01-24 14:10:07 +00001627- Issue #4710: Extract directories properly in the zipfile module;
1628 allow adding directories to a zipfile.
1629
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001630- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001631 --without-threads argument. When this occurs, _multiprocessing will
1632 be disabled, and not compiled.
1633
Antoine Pitrou08838b62009-01-21 00:55:13 +00001634- Issue #5008: When a file is opened in append mode with the new IO library,
1635 do an explicit seek to the end of file (so that e.g. tell() returns the
1636 file size rather than 0). This is consistent with the behaviour of the
1637 traditional 2.x file object.
1638
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001639- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1640 parameter was set.
1641
Mark Dickinson8dd05142009-01-20 20:43:58 +00001642- Issue #4842: Always append a trailing 'L' when pickling longs using
1643 pickle protocol 0. When reading, the 'L' is optional.
1644
Brett Cannonafccd632009-01-20 02:21:27 +00001645- Add the importlib package.
1646
Jesse Noller9a0fc972009-01-18 21:12:58 +00001647- Issue #4301: Patch the logging module to add processName support, remove
1648 _check_logger_class from multiprocessing.
1649
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001650- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001651 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001652
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001653- Issue #4959: inspect.formatargspec now works for keyword only arguments
1654 without defaults.
1655
Jesse Noller6214edd2009-01-19 16:23:53 +00001656- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1657 for *nix machines for negative handles and large int handles. Without this check
1658 it is possible to segfault the interpreter.
1659
Jesse Nollerb0516a62009-01-18 03:11:38 +00001660- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1661 in sharedctypes.py.
1662
1663- Issue #1225107: inspect.isclass() returned True for instances with a custom
1664 __getattr__.
1665
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001666- Issue #3826 and #4791: The socket module now closes the underlying socket
1667 appropriately when it is being used via socket.makefile() objects
1668 rather than delaying the close by waiting for garbage collection to do it.
1669
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001670- Issue #1696199: Add collections.Counter() for rapid and convenient
1671 counting.
1672
Antoine Pitrou308705e2009-01-10 16:22:51 +00001673- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1674
Thomas Heller5e4e4272009-01-08 09:34:20 +00001675- Issue #4867: Fixed a crash in ctypes when passing a string to a
1676 function without defining argtypes.
1677
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001678- Issue #4272: Add an optional argument to the GzipFile constructor to override
1679 the timestamp in the gzip stream. The default value remains the current time.
1680 The information can be used by e.g. gunzip when decompressing. Patch by
1681 Jacques Frechet.
1682
Mark Dickinson315a20a2009-01-04 21:34:18 +00001683- Restore Python 2.3 compatibility for decimal.py.
1684
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001685- Issue #3638: Remove functions from _tkinter module level that depend on
1686 TkappObject to work with multiple threads.
1687
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001688- Issue #4718: Adapt the wsgiref package so that it actually works with
1689 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001690 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1691
Raymond Hettinger771ed762009-01-03 19:20:32 +00001692- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1693 to the decimal module.
1694
Georg Brandl3a9b0622009-01-03 22:07:57 +00001695- Fractions.from_float() no longer loses precision for integers too big to
1696 cast as floats.
1697
Mark Dickinsonf9236412009-01-02 23:23:21 +00001698- Issue #4812: add missing underscore prefix to some internal-use-only
1699 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1700
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001701- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001702 did unnecessary work in the common case where no key function was specified.
1703
Georg Brandlb1441c72009-01-03 22:33:39 +00001704- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1705 the function is not a generator.
1706
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001707- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1708 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001709
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001710- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001711 function. Original patch by Thomas Heller.
1712
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001713- Issue #3767: Convert Tk object to string in tkColorChooser.
1714
Martin v. Löwise354d782008-12-29 16:03:04 +00001715- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1716
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001717- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1718 the code under test can be written inline if more practical.
1719
Georg Brandldb7b6b92009-01-01 15:53:14 +00001720- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1721 works as expected in the interactive environment.
1722
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001723- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1724 Gabriel Genellina.
1725
Antoine Pitrou180a3362008-12-14 16:36:46 +00001726- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1727 boundary.
1728
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001729- Issue #4223: inspect.getsource() will now correctly display source code
1730 for packages loaded via zipimport (or any other conformant PEP 302
1731 loader). Original patch by Alexander Belopolsky.
1732
1733- Issue #4201: pdb can now access and display source code loaded via
1734 zipimport (or any other conformant PEP 302 loader). Original patch by
1735 Alexander Belopolsky.
1736
1737- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1738 302 conformant loader) will now work correctly in most cases (they
1739 are still subject to the constraints that exist for all code running
1740 from inside a module loaded via a PEP 302 loader and attempting to
1741 perform IO operations based on __file__). Original patch by
1742 Alexander Belopolsky.
1743
1744- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1745 allows backporting to maintenance branches. Original patch by
1746 Alexander Belopolsky.
1747
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001748- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1749 a non-ASCII letter.
1750
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001751- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1752
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001753- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1754 codec cannot be found. This is for compatibility with the builtin behavior.
1755
Facundo Batista708d5812008-12-11 04:20:07 +00001756- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1757 give correct results in the case where one argument is a quiet NaN
1758 and the other is a finite number that requires rounding.
1759
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001760- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1761 libs.
1762
Georg Brandlf9734072008-12-07 15:30:06 +00001763- Added the subprocess.check_call_output() convenience function to get output
1764 from a subprocess on success or raise an exception on error.
1765
1766- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1767 support unusual filenames (such as those containing semi-colons) in
1768 Content-Disposition headers.
1769
1770- Issue #4384: Added logging integration with warnings module using
1771 captureWarnings(). This change includes a NullHandler which does nothing;
1772 it will be of use to library developers who want to avoid the "No handlers
1773 could be found for logger XXX" message which can appear if the library user
1774 doesn't configure logging.
1775
1776- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1777 exception.
1778
Georg Brandleee31162008-12-07 15:15:22 +00001779- Issue #4529: fix the parser module's validation of try-except-finally
1780 statements.
1781
1782- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1783 not a malformed option.
1784
1785- Added the subprocess.check_output() convenience function to get output
1786 from a subprocess on success or raise an exception on error.
1787
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001788- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1789 the corresponding tests now pass.
1790
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001791- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1792 it was calling the wrong open() function.
1793
Fred Drake9a0a65b2008-12-04 19:24:50 +00001794- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1795 support unusual filenames (such as those containing semi-colons) in
1796 Content-Disposition headers.
1797
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001798- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1799 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1800
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001801- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1802 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1803 and getservbyport().
1804
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001805- Windows locale mapping updated to Vista.
1806
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001807Tools/Demos
1808-----------
1809
Antoine Pitrou8a681222009-02-07 17:13:31 +00001810- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1811 and make it 2.6-compatible.
1812
Guilherme Poloa7d27972009-01-28 16:06:51 +00001813- Ttk demos added in Demo/tkinter/ttk/
1814
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001815- Issue #4677: add two list comprehension tests to pybench.
1816
Georg Brandlb1441c72009-01-03 22:33:39 +00001817
1818Build
1819-----
1820
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001821- Issue #6094: Build correctly with Subversion 1.7.
1822
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001823- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1824
Antoine Pitrou8966c992009-05-01 21:18:27 +00001825- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1826 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1827
Matthias Klose55708cc2009-04-30 08:06:49 +00001828- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001829 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001830
Matthias Klose906785c2009-02-22 23:18:38 +00001831- Link the shared python library with $(MODLIBS).
1832
Martin v. Löwis11f72102009-02-10 13:13:30 +00001833- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1834
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001835- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1836
Martin v. Löwise97637d2009-01-11 09:45:11 +00001837- Issue #4895: Use _strdup on Windows CE.
1838
Georg Brandlb1441c72009-01-03 22:33:39 +00001839- Issue #4472: "configure --enable-shared" now works on OSX
1840
1841- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1842
1843- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1844
1845- Issue #4289: Remove Cancel button from AdvancedDlg.
1846
1847- Issue #1656675: Register a drop handler for .py* files on Windows.
1848
1849- Issue #4120: Exclude manifest from extension modules in VS2008.
1850
1851- Issue #4091: Install pythonxy.dll in system32 again.
1852
1853- Issue #4018: Disable "for me" installations on Vista.
1854
1855- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1856
1857- Issue #4204: Fixed module build errors on FreeBSD 4.
1858
1859
1860C-API
1861-----
1862
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001863- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1864 NUL: Bogus TypeError detail string.
1865
Mark Dickinson21776072009-02-10 16:13:25 +00001866- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1867 for negative arguments. Previously, it raised TypeError.
1868
Georg Brandlb1441c72009-01-03 22:33:39 +00001869- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1870
1871- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1872 the GIL is released, or owned by another thread.
1873
1874- Issue #4122: On Windows, fix a compilation error when using the
1875 Py_UNICODE_ISSPACE macro in an extension module.
1876
1877
Mark Dickinsone675f082008-12-11 21:56:00 +00001878Extension Modules
1879-----------------
1880
Gregory P. Smith365a1862009-02-12 07:35:29 +00001881- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1882 supporting objects as input no matter how it was compiled (built in
1883 implementations or external openssl library).
1884
Mark Dickinson29500f62009-01-15 15:36:10 +00001885- Issue #4397: Fix occasional test_socket failure on OS X.
1886
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001887- Issue #4279: Fix build of parsermodule under Cygwin.
1888
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001889- Issue #4751: hashlib now releases the GIL when hashing large buffers
1890 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1891 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1892
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001893- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1894
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001895- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1896 or decompress several streams at once on multi-CPU systems. Also, the GIL
1897 is now released when computing the CRC of a large buffer. Patch by ebfe.
1898
Georg Brandlb1441c72009-01-03 22:33:39 +00001899- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1900
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001901- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1902
Mark Dickinsone675f082008-12-11 21:56:00 +00001903- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1904 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001905
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001906- Issue #4583: array.array would not always prohibit resizing when a buffer
1907 has been exported, resulting in an interpreter crash when accessing the
1908 buffer.
1909
Martin v. Löwis841edad2008-11-30 10:36:49 +00001910
Jack Diederiche0cbd692009-04-01 04:27:09 +00001911- Issue #5228: Make functools.partial objects can now be pickled.
1912
Guilherme Polo9de29af2009-01-28 20:40:48 +00001913Tests
1914-----
1915
Antoine Pitrou88909542009-06-29 13:54:42 +00001916- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1917 regression tests in parallel, shortening the total runtime.
1918
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001919- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1920 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1921 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1922 skip the tests if DISPLAY is defined but can't be used.
1923
R. David Murraya21e4ca2009-03-31 23:16:50 +00001924- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001925 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001926 from test support, which does the conversion.
1927
Guilherme Polo9de29af2009-01-28 20:40:48 +00001928- Issue #5083: New 'gui' resource for regrtest.
1929
1930
Brett Cannon7317c1e2008-11-25 19:19:17 +00001931Docs
1932----
1933
Georg Brandl52b92cc2008-05-25 09:43:03 +00001934
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001935**(For information about older versions, consult the HISTORY file.)**