blob: 12a8f38e77c83776d64daf5191455c438dfaf38a [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
Victor Stinner45b9be52010-03-03 23:28:07 +000015- Issue #7544: Preallocate thread memory before creating the thread to avoid
16 a fatal error in low memory condition.
17
Victor Stinner6aa278e2010-03-03 00:18:49 +000018- Issue #7820: The parser tokenizer restores all bytes in the right if
19 the BOM check fails.
20
Benjamin Peterson23e018a2010-02-27 17:40:01 +000021- Handle errors from looking up __prepare__ correctly.
22
Larry Hastings1373a072010-02-24 22:49:58 +000023- Issue #5939: Add additional runtime checking to ensure a valid capsule
24 in Modules/_ctypes/callproc.c.
25
Eric Smith0facd772010-02-24 15:42:29 +000026- Issue #7309: Fix unchecked attribute access when converting
27 UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
28 strings.
29
Eric Smithabb28c62010-02-23 00:22:24 +000030- Issue #6902: Fix problem with built-in types format incorrectly with
31 0 padding.
32
Eric Smith4e260c52010-02-22 18:54:44 +000033- Issue #7988: Fix default alignment to be right aligned for
34 complex.__format__. Now it matches other numeric types.
35
Eric Smith68af50b2010-02-22 14:58:30 +000036- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
37 PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string
38 and PyOS_string_to_double instead. See issue #5835 for the original
39 deprecations.
40
Antoine Pitrou05b7c562010-02-02 22:47:00 +000041- Issue #7385: Fix a crash in `MemoryView_FromObject` when
42 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
43
Mark Dickinsonbc099642010-01-29 17:27:24 +000044- Issue #7788: Fix an interpreter crash produced by deleting a list
45 slice with very large step value.
46
Eric Smithf7bb5782010-01-27 00:44:57 +000047- Issue #7766: Change sys.getwindowsversion() return value to a named
48 tuple and add the additional members returned in an OSVERSIONINFOEX
49 structure. The new members are service_pack_major, service_pack_minor,
50 suite_mask, and product_type.
51
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000052- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
53 could crash in many places because of the PyByteArray_AS_STRING() macro
54 returning NULL. The macro now returns a statically allocated empty
55 string instead.
56
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000057- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
58 where the right hand operand is a set of constants, by turning the set into
59 a frozenset and pre-building it as a constant. The comparison operation
60 is made against the constant instead of building a new set each time it is
61 executed (a similar optimization already existed which turned a list of
62 constants into a pre-built tuple). Patch and additional tests by Dave
63 Malcolm.
64
Antoine Pitrouf2c54842010-01-13 08:07:53 +000065- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
66 methods of bytes, bytearray and unicode objects by using a common
67 implementation based on stringlib's fast search. Patch by Florent Xicluna.
68
Mark Dickinson45b63652010-01-16 18:10:25 +000069- Issue #7632: Fix various str -> float conversion bugs present in 2.7
70 alpha 2, including: (1) a serious 'wrong output' bug that could
71 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
72 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +000073 strings corresponding to subnormal values, (3) a memory leak for
74 some values large enough to cause overflow, and (4) a number of
75 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +000076
Benjamin Petersonaea44282010-01-04 01:10:28 +000077- The __complex__ method is now looked up on the class of instances to make it
78 consistent with other special methods.
79
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +000080- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
81 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
82
Benjamin Petersond12362a2009-12-30 19:44:54 +000083- Issue #7604: Deleting an unset slotted attribute did not raise an
84 AttributeError.
85
Mark Dickinson9ab44b52009-12-30 16:22:49 +000086- Issue #7534: Fix handling of IEEE specials (infinities, nans,
87 negative zero) in ** operator. The behaviour now conforms to that
88 described in C99 Annex F.
89
Mark Dickinsoncbb62742009-12-27 15:09:50 +000090- Issue #1811: improve accuracy and cross-platform consistency for
91 true division of integers: the result of a/b is now correctly
92 rounded for ints a and b (at least on IEEE 754 platforms), and in
93 particular does not depend on the internal representation of an int.
94
Ronald Oussoren6f6c5622009-12-24 14:03:19 +000095- Issue #6834: replace the implementation for the 'python' and 'pythonw'
96 executables on OSX.
97
98 These executables now work properly with the arch(1) command:
99 ``arch -ppc python`` will start a universal binary version of python
100 in PPC mode (unlike previous releases).
101
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +0000102- Issue #7466: segmentation fault when the garbage collector is called
103 in the middle of populating a tuple. Patch by Florent Xicluna.
104
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +0000105- Issue #7419: setlocale() could crash the interpreter on Windows when called
106 with invalid values.
107
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +0000108- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
109 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
110
Ronald Oussoren3c1928a2009-11-19 17:15:31 +0000111- Issue #7085: Fix crash when importing some extensions in a thread
112 on MacOSX 10.6.
113
Philip Jenvey1309adb2009-11-17 03:43:14 +0000114- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
115
Mark Dickinson6f1d0492009-11-15 13:58:49 +0000116- Issue #6970: Remove redundant calls when comparing objects that don't
117 implement the relevant rich comparison methods.
118
Mark Dickinsond550c9a2009-11-15 09:57:26 +0000119- Issue #7298: fixes for range and reversed(range(...)). Iteration
120 over range(a, b, c) incorrectly gave an empty iterator when a, b and
121 c fit in C long but the length of the range did not. Also fix
122 several cases where reversed(range(a, b, c)) gave wrong results, and
123 fix a refleak for reversed(range(a, b, c)) with large arguments.
124
Raymond Hettingerfc438512009-11-01 20:55:33 +0000125- Issue #7244: itertools.izip_longest() no longer ignores exceptions
126 raised during the formation of an output tuple.
127
Benjamin Petersonb2e796a2009-10-28 21:59:39 +0000128- Issue #3297: On wide unicode builds, do not split unicode characters into
129 surrogates.
130
Mark Dickinsonf9724882009-10-26 21:51:18 +0000131- Remove length limitation when constructing a complex number from a string.
132
Mark Dickinson27a87a22009-10-25 20:43:34 +0000133- Issue #1087418: Boost performance of bitwise operations for longs.
134
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000135- Support for AtheOS has been completely removed from the code base. It was
136 disabled since Python 3.0.
137
138- Support for several legacy threading libraries has been disabled. These
139 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
140 will be entirely removed in 3.3.
141
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000142- Peephole constant folding had missed UNARY_POSITIVE.
143
Antoine Pitrou011bd622009-10-20 21:52:47 +0000144- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
145 fixes the problem of some exceptions being thrown at shutdown when the
146 interpreter is killed. Patch by Adam Olsen.
147
Antoine Pitrou671141d2009-10-19 19:37:25 +0000148- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000149 support.
150
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000151- Issue #7120: logging: Removed import of multiprocessing which is causing
152 crash in GAE.
153
Neil Schemenauere441cb72009-10-14 19:14:38 +0000154- Issue #1754094: Improve the stack depth calculation in the compiler.
155 There should be no other effect than a small decrease in memory use.
156 Patch by Christopher Tur Lesniewski-Laas.
157
Antoine Pitrou403ce782009-10-14 17:14:16 +0000158- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000159 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000160
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000161- Issue #1571184: The Unicode database contains properties for more characters.
162 The tables for code points representing numeric values, white spaces or line
163 breaks are now generated from the official Unicode Character Database files,
164 and include information from the Unihan.txt file.
165
Mark Dickinson2683ab02009-09-29 19:21:35 +0000166- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
167 of producing internally inconsistent Python longs.
168
Philip Jenvey26713ca2009-09-29 04:57:18 +0000169- Issue #6990: Fix threading.local subclasses leaving old state around
170 after a reference cycle GC which could be recycled by new locals.
171
Benjamin Peterson4905e802009-09-27 02:43:28 +0000172- Issue #5460: Fix an ambiguity in the grammar.
173
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000174- Issue #1766304: Improve performance of membership tests on range objects.
175
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000176- Issue #6713: Improve performance of integer -> string conversions.
177
Mark Dickinson54a3db92009-09-06 10:19:23 +0000178- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
179
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000180- Issue #6750: A text file opened with io.open() could duplicate its output
181 when writing from multiple threads at the same time.
182
Benjamin Peterson14327712009-08-15 13:23:05 +0000183- Issue #6707: dir() on an uninitialized module caused a crash.
184
Georg Brandl953152f2009-07-22 12:03:59 +0000185- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
186
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000187- Issue #6573: set.union() stopped processing inputs if an instance of self
188 occurred in the argument chain.
189
R. David Murray046f7232009-07-19 02:22:05 +0000190- Issue #6070: On posix platforms import no longer copies the execute bit
191 from the .py file to the .pyc file if it is set.
192
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000193- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
194
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000195- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
196 object, and not an int. Fix the corresponding error message, and the
197 documentation.
198
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000199- The deprecated PyCObject has been removed.
200
Mark Dickinson835a6c82009-06-30 15:45:17 +0000201- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
202 This fixes a build failure on HP-UX: int32_t and uint32_t are
203 defined in inttypes.h instead of stdint.h on that platform.
204
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000205- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000206 the 'surrogateescape' error handler, a string which contains unpaired
207 surrogates.
208
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000209- Issue #4856: Remove checks for win NT.
210
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000211- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
212 argument to construct a null-initialized bytes object.
213
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000214- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
215 These methods allow the conversion of integers to bytes, and vice-versa.
216
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000217- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
218 instances from being copied with copy.copy(), and bytes subclasses
219 from being pickled properly.
220
Benjamin Peterson466a7822009-07-02 21:44:01 +0000221C-API
222-----
223
Mark Dickinson93f562c2010-01-30 10:30:15 +0000224- Issue #7767: New function PyLong_AsLongLongAndOverflow added,
225 analogous to PyLong_AsLongAndOverflow.
226
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000227- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
228 has '\0' at the end.
229
Mark Dickinsonde604012010-01-01 19:27:32 +0000230- Issue #5080: The argument parsing functions PyArg_ParseTuple,
231 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
232 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
233 DeprecationWarning for float arguments passed with the 'L' format
234 code. This will become a TypeError in a future version of Python,
235 to match the behaviour of the other integer format codes.
236
Georg Brandl1e28a272009-12-28 08:41:01 +0000237- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
238
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000239- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
240 in PyArg_ParseTupleAndKeywords.
241
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000242- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000243 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
244
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000245- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
246 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
247 should used for accessing the d_type and d_name members of structures
248 using PyDescr_COMMON.
249
250- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000251
Benjamin Peterson466a7822009-07-02 21:44:01 +0000252- The code flags for old __future__ features are now available again.
253
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000254- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
255 PyCode_Addr2Line().
256
257- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
258 object at a specified file, function, and line number.
259
260- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
261 ``const char *`` as the string is stored beyond the call.
262
Benjamin Peterson05159c42009-12-03 03:01:27 +0000263- Issue #2422: When compiled with the ``--with-valgrind`` option, the
264 pymalloc allocator will be automatically disabled when running under
265 Valgrind. This gives improved memory leak detection when running
266 under Valgrind, while taking advantage of pymalloc at other times.
267
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000268Library
269-------
270
Ezio Melottib92ed7c2010-03-06 15:24:08 +0000271- Issue #6509: fix re.sub to work properly when the pattern, the string, and
272 the replacement were all bytes. Patch by Antoine Pitrou.
273
Gerhard Häringf9cee222010-03-05 15:20:03 +0000274- The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure
275 bugs and allows loading SQLite extensions from shared libraries.
276
Victor Stinner7ed9c4c2010-03-04 12:14:57 +0000277- Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review
278 Issue #29
279
Victor Stinnercee3ae82010-03-04 00:29:24 +0000280- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
281 reset also the pointer to the current pointer context.
282
Lars Gustäbel01385812010-03-03 12:08:54 +0000283- Issue #7232: Add support for the context manager protocol to the TarFile
284 class.
285
Barry Warsawb1938262010-03-01 21:53:00 +0000286- Issue #7250: Fix info leak of os.environ across multi-run uses of
287 wsgiref.handlers.CGIHandler.
288
Florent Xicluna59250852010-02-27 14:21:57 +0000289- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
290
Florent Xiclunac279ebf2010-02-27 11:31:21 +0000291- Issue #691291: codecs.open() should not convert end of lines on reading and
292 writing.
293
Vinay Sajipdb81c4c2010-02-25 23:13:06 +0000294- Issue #7869: logging: improved diagnostic for format-time errors.
295
296- Issue #7868: logging: added loggerClass attribute to Manager.
297
298- logging: Implemented PEP 391.
299
R. David Murraybe0698b2010-02-23 22:57:58 +0000300- Issue #1537721: Add a writeheader() method to csv.DictWriter.
301
Thomas Heller5117b0b2010-02-23 20:25:02 +0000302- Issue #7959: ctypes callback functions are now registered correctly
Ezio Melotti8b1458b2010-02-24 16:55:43 +0000303 with the cycle garbage collector.
Thomas Heller5117b0b2010-02-23 20:25:02 +0000304
Tarek Ziadé8e615ae2010-02-23 06:00:04 +0000305- Issue #5801: removed spurious empty lines in wsgiref.
306
Andrew M. Kuchlinge1f9beb2010-02-22 22:16:58 +0000307- Issue #6666: fix bug in trace.py that applied the list of directories
308 to be ignored only to the first file. Noted by Bogdan Opanchuk.
309
Andrew M. Kuchlingfbacb062010-02-22 16:52:52 +0000310- Issue #7597: curses.use_env() can now be called before initscr().
311 Noted by Kan-Ru Chen.
312
Ezio Melotti19e4acf2010-02-22 15:59:01 +0000313- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
314
R. David Murray57c45ac2010-02-21 04:39:40 +0000315- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
316 messages parsed by email.Parser.HeaderParser.
317
Brett Cannonef7d6722010-02-19 16:04:36 +0000318- Issue #7361: Importlib was not properly checking the number of bytes in
319 bytecode file when it was less then 8 bytes.
320
Mark Dickinson84230a12010-02-18 14:49:50 +0000321- Issue #7633: In the decimal module, Context class methods (with the
322 exception of canonical and is_canonical) now accept instances of int
323 and long wherever a Decimal instance is accepted, and implicitly
324 convert that argument to Decimal. Previously only some arguments
325 were converted.
326
R. David Murray1f449142010-02-11 00:15:05 +0000327- Issue #7835: shelve should no longer produce mysterious warnings during
328 interpreter shutdown.
329
Antoine Pitrou99f69ee2010-02-09 17:25:47 +0000330- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">")
331 in XML processing instructions and comments. These raw characters are
332 allowed by the XML specification, and are necessary when outputting e.g.
333 PHP code in a processing instruction. Patch by Neil Muller.
334
Antoine Pitrouc77dd322010-02-09 16:51:16 +0000335- Issue #6233: ElementTree failed converting unicode characters to XML
336 entities when they could't be represented in the requested output
337 encoding. Patch by Jerry Chen.
338
Ronald Oussorenee5c8852010-02-07 20:24:02 +0000339- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to
340 specify the compression type.
341
Antoine Pitroub6375f12010-02-04 20:23:24 +0000342- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
343 specified, rather than fall through to AF_PACKET (in the `socket` module).
344 Also, raise ValueError rather than TypeError when an unknown TIPC address
345 type is specified. Patch by Brian Curtin.
346
Antoine Pitrou905a2ff2010-01-31 22:47:27 +0000347- Issue #6939: Fix file I/O objects in the `io` module to keep the original
348 file position when calling `truncate()`. It would previously change the
349 file position to the given argument, which goes against the tradition of
350 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
351
Antoine Pitroua32f9a22010-01-27 21:18:57 +0000352- Issue #7610: Reworked implementation of the internal
353 :class:`zipfile.ZipExtFile` class used to represent files stored inside
354 an archive. The new implementation is significantly faster and can
355 be wrapped in a :class:`io.BufferedReader` object for more speedups.
356 It also solves an issue where interleaved calls to `read()` and
357 `readline()` give wrong results. Patch by Nir Aides.
358
Jesse Noller1f0b6582010-01-27 03:36:01 +0000359- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
360 allowing for a maximum number of tasks within the pool to be completed by
361 the worker before that worker is terminated, and a new one created to
362 replace it.
363
Benjamin Petersond6326642010-01-27 02:25:58 +0000364- Issue #7792: Registering non-classes to ABCs raised an obscure error.
365
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000366- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000367
Ezio Melotti38f00332010-01-25 12:39:47 +0000368- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
369
Benjamin Peterson25001472010-01-25 03:37:42 +0000370- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
371 the release file is empty.
372
Antoine Pitrou1119a642010-01-17 12:16:23 +0000373- Issue #7561: Fix crashes when using bytearray objects with the posix
374 module.
375
R. David Murraya8f480f2010-01-16 18:30:03 +0000376- Issue #1670765: Prevent email.generator.Generator from re-wrapping
377 headers in multipart/signed MIME parts, which fixes one of the sources of
378 invalid modifications to such parts by Generator.
379
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000380- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
381 Patch by Florent Xicluna, along with some additional tests.
382
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000383- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
384 1-byte argument. Patch by Victor Stinner.
385
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000386- Issue #3299: Fix possible crash in the _sre module when given bad
387 argument values in debug mode. Patch by Victor Stinner.
388
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000389- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
390 Patch by Brian Curtin.
391
Benjamin Peterson5efea042010-01-13 03:49:50 +0000392- Issue #7681: Use floor division in appropiate places in the wave module.
393
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000394- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
395 Extension extra options may change the output without changing the .c
396 file). Initial patch by Collin Winter.
397
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000398- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
399 gcc when it has a fully qualified configuration prefix. Initial patch
400 by Arfrever.
401
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000402- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
403 the destruction of weakref'ed objects while iterating.
404
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000405- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
406 Victor Stinner.
407
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000408- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
409 properly handles EINTR within the read, readline, write & flush methods.
410 The socket.sendall() method now properly handles interrupted system calls.
411
Antoine Pitroub1f88352010-01-03 22:37:40 +0000412- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
413 and make it implement the `io.BufferedIOBase` ABC to allow for further
414 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
415
416- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000417 parameter to allow specifying where your connections come from.
418
419- socket.create_connection now accepts an optional source_address parameter.
420
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000421- Issue #5511: now zipfile.ZipFile can be used as a context manager.
422 Initial patch by Brian Curtin.
423
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000424- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
425 MSVC XML Manifest file in text mode so string patterns can be used
426 in regular expressions.
427
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000428- Issue #7552: Removed line feed in the base64 Authorization header in
429 the Distutils upload command to avoid an error when PyPI reads it.
430 This occurs on long passwords. Initial patch by JP St. Pierre.
431
Senthil Kumaran47fff872009-12-20 07:10:31 +0000432- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
433 Tatsuhiro Tsujikawa.
434
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000435- Issue #4757: `zlib.compress` and other methods in the zlib module now
436 raise a TypeError when given an `str` object (rather than a `bytes`-like
437 object). Patch by Victor Stinner and Florent Xicluna.
438
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000439- Issue #7349: Make methods of file objects in the io module accept None as an
440 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
441 the same as passing no argument.
442
Lars Gustäbel365aff32009-12-13 11:42:29 +0000443- Issue #7357: tarfile no longer suppresses fatal extraction errors by
444 default.
445
R. David Murraye8dc2582009-12-10 02:08:06 +0000446- Issue #5949: added check for correct lineends in input from IMAP server
447 in imaplib.
448
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000449- Add a reverse() method to collections.deque().
450
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000451- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
452
Antoine Pitrou781eba72009-12-08 15:57:31 +0000453- Issue #6986: Fix crash in the JSON C accelerator when called with the
454 wrong parameter types. Patch by Victor Stinner.
455
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000456- Issue #7457: added a read_pkg_file method to
457 distutils.dist.DistributionMetadata.
458
Vinay Sajip540f2152009-12-06 17:57:11 +0000459- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
460 TLS with authentication credentials.
461
Tarek Ziadédf872d42009-12-06 09:28:17 +0000462- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
463 generated in Distutils. Patch by Stephen Emslie.
464
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000465- Issue #4120: Drop reference to CRT from manifest when building extensions with
466 msvc9compiler.
467
Antoine Pitroub7572f02009-12-02 20:46:48 +0000468- Issue #7333: The `posix` module gains an `initgroups()` function providing
469 access to the initgroups(3) C library call on Unix systems which implement
470 it. Patch by Jean-Paul Calderone.
471
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000472- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
473 ownership when the group is not forced, because the group may be different
474 from the user's group and inherit from its container when the test is run.
475
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000476- Issue #4486: When an exception has an explicit cause, do not print its
477 implicit context too. This affects the `traceback` module as well as
478 built-in exception printing.
479
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000480- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
481 Robert Collins.
482
Vinay Sajip03f6c112009-11-27 14:03:36 +0000483- Issue #7403: logging: Fixed possible race condition in lock creation.
484
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000485- Issue #6845: Add restart support for binary upload in ftplib. The
486 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
487 argument. Patch by Pablo Mouzo.
488
Antoine Pitroube6859d2009-11-25 23:02:32 +0000489- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
490 method returning the total number of seconds in the duration. Patch by
491 Brian Quinlan.
492
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000493- Issue #7133: SSL objects now support the new buffer API.
494
Senthil Kumaran758025c2009-11-23 19:02:52 +0000495- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
496
Lars Gustäbel9520a432009-11-22 18:48:49 +0000497- Issue #6123: tarfile now opens empty archives correctly and consistently
498 raises ReadError on empty files.
499
Tarek Ziadé26afd482009-11-19 05:39:00 +0000500- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
501 be 2.
502
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000503- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
504 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000505
Lars Gustäbel7b465392009-11-18 20:29:25 +0000506- Issue #7341: Close the internal file object in the TarFile constructor in
507 case of an error.
508
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000509- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
510 Windows box. Help provided by David Bolen.
511
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000512- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
513 TLS or SSL. Patch by Giampaolo Rodola'.
514
Nick Coghlan106274b2009-11-15 23:04:33 +0000515- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
516
Antoine Pitroub8108e22009-11-15 14:25:16 +0000517- Issue #4969: The mimetypes module now reads the MIME database from
518 the registry under Windows. Patch by Gabriel Genellina.
519
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000520- Issue #6816: runpy now provides a run_path function that allows Python code
521 to execute file paths that refer to source or compiled Python files as well
522 as zipfiles, directories and other valid sys.path entries that contain a
523 __main__.py file. This allows applications that run other Python scripts to
524 support the same flexibility as the CPython command line itself.
525
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000526- Issue #7318: multiprocessing now uses a timeout when it fails to establish
527 a connection with another process, rather than looping endlessly. The
528 default timeout is 20 seconds, which should be amply sufficient for
529 local connections.
530
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000531- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
532 unpickled. This fixes crashes under Windows when trying to run
533 test_multiprocessing in verbose mode.
534
Michael Foord34c94622010-02-10 15:51:42 +0000535- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
536 argument added to the TextTestRunner constructor allowing a different result
537 class to be used without having to subclass.
538
539- Issue 7588: ``unittest.TextTestResult.getDescription`` now includes the test
540 name in failure reports even if the test has a docstring.
541
Antoine Pitrou434736a2009-11-10 18:46:01 +0000542- Issue #3001: Add a C implementation of recursive locks which is used by
543 default when instantiating a `threading.RLock` object. This makes
544 recursive locks as fast as regular non-recursive locks (previously,
545 they were slower by 10x to 15x).
546
Antoine Pitroub0872682009-11-09 16:08:16 +0000547- Issue #7282: Fix a memory leak when an RLock was used in a thread other
548 than those started through `threading.Thread` (for example, using
549 `_thread.start_new_thread()`).
550
Brett Cannone52c9192009-11-07 23:55:05 +0000551- Issue #7187: Importlib would not silence the IOError raised when trying to
552 write new bytecode when it was made read-only.
553
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000554- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
555 which are part of a reference cycle.
556
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000557- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
558 objects on 64-bit systems. Patch by Michael Broghton.
559
Antoine Pitrou03f13442009-11-02 11:36:51 +0000560- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
561 a modification is done through it. This fixes inconsistencies and test
562 failures on systems with slightly bogus mtime behaviour.
563
Gregory P. Smith50467882009-11-01 18:42:17 +0000564- Issue #7246 & Issue #7208: getpass now properly flushes input before
565 reading from stdin so that existing input does not confuse it and
566 lead to incorrect entry or an IOError. It also properly flushes it
567 afterwards to avoid the terminal echoing the input afterwards on
568 OSes such as Solaris.
569
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000570- Issue #7233: Fix a number of two-argument Decimal methods to make
571 sure that they accept an int or long as the second argument. Also
572 fix buggy handling of large arguments (those with coefficient longer
573 than the current precision) in shift and rotate.
574
Lars Gustäbel1440df22009-10-29 09:39:47 +0000575- Issue #4750: Store the basename of the original filename in the gzip FNAME
576 header as required by RFC 1952.
577
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000578- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
579 Distutils.
580
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000581- Issue #7218: Fix test_site for win32, the directory comparison was done with
582 an uppercase.
583
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000584- Issue #7205: Fix a possible deadlock when using a BZ2File object from
585 several threads at once.
586
Vinay Sajip42ead482009-10-21 20:22:14 +0000587- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
588
Mark Dickinson06bb6742009-10-20 13:38:04 +0000589- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
590 larger than emax.
591
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000592- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
593 platforms, and assorted locale fixes by Derk Drukker.
594
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000595- Issue #5833: Fix extra space character in readline completion with the
596 GNU readline library version 6.0.
597
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000598- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000599
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000600- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
601 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000602
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000603- Issue #7082: When falling back to the MIME 'name' parameter, the
604 correct place to look for it is the Content-Type header.
605
Benjamin Petersond3afada2009-10-09 21:43:09 +0000606- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
607 builtin tokenizer.
608
Mark Dickinson56df8872009-10-07 19:23:50 +0000609- Issue #7048: Force Decimal.logb to round its result when that result
610 is too large to fit in the current precision.
611
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000612- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000613 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000614
Thomas Heller69b639f2009-09-18 20:08:39 +0000615- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
616 does now always result in NULL.
617
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000618- Issue #5042: Structure sub-subclass does now initialize correctly
619 with base class positional arguments.
620
Eric Smith81fd8042009-09-18 13:23:13 +0000621- Issue #6882: Import uuid creates zombies processes.
622
Matthias Klosef6b76b02009-09-13 15:18:53 +0000623- Issue #6635: Fix profiler printing usage message.
624
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000625- Issue #6856: Add a filter keyword argument to TarFile.add().
626
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000627- Issue #6888: pdb's alias command was broken when no arguments were given.
628
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000629- Issue #6857: Default format() alignment should be '>' for Decimal
630 instances.
631
Mark Dickinson825fce32009-09-07 18:08:12 +0000632- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
633 returning NaN or raising InvalidContext. Also, fix infinite recursion
634 in long(Decimal('nan')).
635
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000636- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
637 with no type specifier.
638
Thomas Heller8b939522009-09-04 18:24:41 +0000639- Issue #6239: ctypes.c_char_p return value must return bytes.
640
Chris Withers9c33cbf2009-09-04 17:04:16 +0000641- Issue #6838: Use a list to accumulate the value instead of
642 repeatedly concatenating strings in http.client's
643 HTTPResponse._read_chunked providing a significant speed increase
644 when downloading large files servend with a Transfer-Encoding of 'chunked'.
645
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000646- Trying to import a submodule from a module that is not a package, ImportError
647 should be raised, not AttributeError.
648
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000649- When the globals past to importlib.__import__() has __package__ set to None,
650 fall back to computing what __package__ should be instead of giving up.
651
Brett Cannon6afbaef2009-08-30 19:08:58 +0000652- Raise a TypeError when the name of a module to be imported for
653 importlib.__import__ is not a string (was raising an
654 AttributeError before).
655
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000656- Allow the fromlist passed into importlib.__import__ to be any iterable.
657
Brett Cannon4d75fc12009-08-30 03:47:36 +0000658- Have importlib raise ImportError if None is found in sys.modules.
659
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000660- Issue #6054: Do not normalize stored pathnames in tarfile.
661
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000662- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
663 payloads are now ordered by integer value rather than lexicographically.
664
Guilherme Polobcd03df2009-08-18 15:35:57 +0000665- Issue #1356969: Add missing info methods in tix.HList.
666
667- Issue #1522587: New constants and methods for the tix.Grid widget.
668
669- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
670
671- Issue #1119673: Do not override tkinter.Text methods when creating a
672 ScrolledText.
673
Gregory P. Smith01099702009-08-16 18:58:46 +0000674- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
675
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000676- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
677 the xview* and yview* methods.
678
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000679- Issue #6629: Fix a data corruption issue in the new I/O library, which could
680 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
681 "wb+" mode) after having buffered a certain amount of data for reading. This
682 bug was not present in the pure Python implementation.
683
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000684- Issue #6622: Fix "local variable 'secret' referenced before
685 assignment" bug in POP3.apop.
686
Mark Dickinson45f799f2009-08-02 20:08:54 +0000687- Issue #2715: Remove remnants of Carbon.File from binhex module.
688
Mark Dickinson345adc42009-08-02 10:14:23 +0000689- Issue #6595: The Decimal constructor now allows arbitrary Unicode
690 decimal digits in input, as recommended by the standard. Previously
691 it was restricted to accepting [0-9].
692
Jack Diederich36596a32009-07-26 22:23:04 +0000693- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
694 DO/DONT correctly.
695
Senthil Kumaran67305382009-07-26 04:46:00 +0000696- Issue #1424152: Fix for http.client, urllib.request to support SSL while
697 working through proxy. Original patch by Christopher Li, changes made by
698 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000699
Brett Cannon69194272009-07-20 04:23:48 +0000700- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
701 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
702 and PyPycLoader inherit from this class and provide implementations in
703 relation to other methods required by the ABCs.
704
Brett Cannon64ef00f2009-07-20 03:19:18 +0000705- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
706 the documentation said it did even though the code in PyLoader relied on the
707 abstract method required by ResourceLoader.
708
Mark Dickinson85424c92009-07-18 14:41:42 +0000709- Issue #6431: Make Fraction type return NotImplemented when it doesn't
710 know how to handle a comparison without loss of precision. Also add
711 correct handling of infinities and nans for comparisons with float.
712
Antoine Pitrouf3637322009-08-06 21:00:37 +0000713- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000714
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000715- Issue #6358: The exit status of a command started with os.popen() was
716 reported differently than it did with python 2.x.
717
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000718- Issue #6323: The pdb debugger did not exit when running a script with a
719 syntax error.
720
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000721- Issue #3392: The subprocess communicate() method no longer fails in select()
722 when file descriptors are large; communicate() now uses poll() when possible.
723
Antoine Pitrou54923952009-07-01 14:53:06 +0000724- Issue #6369: Fix an RLE decompression bug in the binhex module.
725
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000726- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
727
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000728- The deprecated function string.maketrans has been removed.
729
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000730- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
731 sys.path.
732
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000733- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
734
Gregory P. Smithb6e8c7e2010-02-27 07:22:22 +0000735- The os.get_exec_path() function to return the list of directories that will
736 be searched for an executable when launching a subprocess was added.
737
Gregory P. Smith3fdd9642010-02-28 18:57:46 +0000738- Issue #7481: When a threading.Thread failed to start it would leave the
739 instance stuck in initial state and present in threading.enumerate().
740
Gregory P. Smitha59c59f2010-03-01 00:17:40 +0000741- Issue #1068268: The subprocess module now handles EINTR in internal
742 os.waitpid and os.read system calls where appropriate.
743
Gregory P. Smith1a530912010-03-01 04:59:27 +0000744- Issue #6729: Added ctypes.c_ssize_t to represent ssize_t.
745
Steven Bethard6d265692010-03-02 09:22:57 +0000746- Issue #6247: The argparse module has been added to the standard library.
747
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000748Extension Modules
749-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000750
Martin v. Löwis3afc62e2010-02-18 16:27:43 +0000751- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
752 msvcr100.dll is not a platform assembly anymore.
753
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000754- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
755
Mark Dickinson40714af2009-10-08 15:59:20 +0000756- Issue #7078: Set struct.__doc__ from _struct.__doc__.
757
Mark Dickinson45f992a2009-12-19 11:20:49 +0000758- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000759
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000760- Issue #6877: It is now possible to link the readline extension to the
761 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000762
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000763- Issue #6848: Fix curses module build failure on OS X 10.6.
764
Brett Cannon2f827382009-08-13 19:58:01 +0000765- Fix a segfault that could be triggered by expat with specially formed input.
766
Mark Dickinson1f268282009-07-28 17:22:36 +0000767- Issue #6561: '\d' in a regex now matches only characters with
768 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
769 matched characters with category 'No'.
770
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000771- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000772 failing due to the resize restriction in-place when the object has exported
773 buffers.
774
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000775- Issue #2389: Array objects are now pickled in a portable manner.
776
Matthias Klosea50ffe52010-01-22 01:10:19 +0000777- Expat: Fix DoS via XML document with malformed UTF-8 sequences
778 (CVE_2009_3560).
779
Gregory P. Smith24cec9f2010-03-01 06:18:41 +0000780- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a
781 thread could raise an incorrect RuntimeError about not holding the import
782 lock. The import lock is now reinitialized after fork.
783
Gregory P. Smithc78d79c2010-03-01 05:54:14 +0000784- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
785 parameter on some platforms such as OS X.
786
Martin v. Löwis95c46012009-06-28 09:36:14 +0000787Build
788-----
789
Martin v. Löwis19ed3c82010-02-15 21:45:06 +0000790- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwis7671efc2010-02-15 08:35:16 +0000791
Mark Dickinsonde508002010-01-17 21:02:55 +0000792- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
793 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
794 PyMem_Free instead. Also disable caching of powers of 5.
795
Benjamin Petersond78735d2010-01-01 16:04:23 +0000796- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
797
798- Issue #6943: Use pkg-config to find the libffi headers when the
799 --with-system-ffi flag is used.
800
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000801- Issue #7609: Add a --with-system-expat option that causes the system's expat
802 library to be used for the pyexpat module instead of the one included with
803 Python.
804
Benjamin Petersone57d6762009-12-30 03:02:03 +0000805- Issue #7589: Only build the nis module when the correct header files are
806 found.
807
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000808- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000809
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000810- Issue #5792: Extend the short float repr support to x86 systems using
811 icc or suncc.
812
Mark Dickinsona25b1312009-10-31 10:18:44 +0000813- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
814 compiles correctly under gcc on x86-64. This fixes a reported
815 problem with the --with-tsc build on x86-64.
816
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000817- Issue #6802: Fix build issues on MacOSX 10.6
818
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000819- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
820
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000821- Issue 4601: 'make install' did not set the appropriate permissions on
822 directories.
823
Martin v. Löwis95c46012009-06-28 09:36:14 +0000824- Issue 5390: Add uninstall icon independent of whether file
825 extensions are installed.
826
Ronald Oussoren585c1732009-12-24 14:21:55 +0000827- Issue #7541: when using ``python-config`` with a framework install the compiler might
828 use the wrong library.
829
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000830Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000831------------
832
Barry Warsaw615368f2010-02-05 19:12:30 +0000833- Updating `Using Python` documentation to include description of CPython's
834 -J and -X options.
835
Brett Cannon757df6e2009-08-30 04:00:12 +0000836- Document that importing a module that has None in sys.modules triggers an
837 ImportError.
838
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000839- Issue #6556: Fixed the Distutils configuration files location explanation
840 for Windows.
Matthias Klosec8b16f82010-01-31 16:14:37 +0000841
842- Update python manual page (options -B, -O0, -s, environment variables
843 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000844
Brett Cannonb49c70c2009-07-15 04:08:33 +0000845Tests
846-----
847
Florent Xicluna683a7e72010-03-03 00:06:37 +0000848- Issue #767675: enable test_pep277 on POSIX platforms with Unicode-friendly
849 filesystem encoding.
850
R. David Murray378c0cf2010-02-24 01:46:21 +0000851- Issue #6292: for the moment at least, the test suite runs cleanly if python
852 is run with the -OO flag. Tests requiring docstrings are skipped.
853
Ezio Melotti184bdfb2010-02-18 09:37:05 +0000854- Issue #7712: test.support gained a new `temp_cwd` context manager which is
855 now also used by regrtest to run all the tests in a temporary directory.
856 The original CWD is saved in `support.SAVEDCWD`.
857 Thanks to Florent Xicluna who helped with the patch.
858
Mark Dickinsonedff7af2010-02-13 18:34:53 +0000859- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
860 test_capi (only seen so far on platforms where the curses module
861 wasn't built), due to an uncleared exception.
862
R. David Murraye9e95932010-02-06 05:00:15 +0000863- issue #7728: test_timeout was changed to use test_support.bind_port
864 instead of a hard coded port.
865
R. David Murray445448c2009-12-20 17:28:31 +0000866- Issue #7376: instead of running a self-test (which was failing) when called
867 with no arguments, doctest.py now gives a usage message.
868
R. David Murrayef1992b2009-12-16 15:19:27 +0000869- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
870
R. David Murray596da442009-12-14 23:06:11 +0000871- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000872 instead of a hardcoded port number in test_rapid_restart.
873
R. David Murrayba311052009-12-04 00:09:14 +0000874- Issue #7431: use TESTFN in test_linecache instead of trying to create a
875 file in the Lib/test directory, which might be read-only for the
876 user running the tests.
877
R. David Murray35768ad2009-11-15 00:23:21 +0000878- Issue #7324: add a sanity check to regrtest argument parsing to
879 catch the case of an option with no handler.
880
R. David Murray7dc72cc2009-11-14 16:13:02 +0000881- Issue #7312: Add a -F flag to run the selected tests in a loop until
882 a test fails. Can be combined with -j.
883
Antoine Pitrou060cee22009-11-13 16:29:04 +0000884- Issue #6551: test_zipimport could import and then destroy some modules of
885 the encodings package, which would make other tests fail further down
886 the road because the internally cached encoders and decoders would point
887 to empty global variables.
888
Antoine Pitrou941ee882009-11-11 20:59:38 +0000889- Issue #7295: Do not use a hardcoded file name in test_tarfile.
890
Antoine Pitrou557934f2009-11-06 22:41:14 +0000891- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
892 primitives such as Lock, RLock, Condition, Event and Semaphore.
893
Brett Cannoncfed0292009-11-05 01:26:57 +0000894- Issue #7248 (part 2): Use a unique temporary directory for importlib source
895 tests instead of tempfile.tempdir. This prevents the tests from sharing state
896 between concurrent executions on the same system.
897
Brett Cannon0ae45112009-11-05 01:17:22 +0000898- Issue #7248: In importlib.test.source.util a try/finally block did not make
899 sure that some referenced objects actually were created in the block before
900 calling methods on the object.
901
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000902- Issue #7222: Make thread "reaping" more reliable so that reference
903 leak-chasing test runs give sensible results. The previous method of
904 reaping threads could return successfully while some Thread objects were
905 still referenced. This also introduces a new private function:
906 :func:`_thread._count()`.
907
R. David Murray27144602009-10-19 15:26:16 +0000908- Issue #7151: fixed regrtest -j so that output to stderr from a test no
909 longer runs the risk of causing the worker thread to fail.
910
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000911- Issue #7055: test___all__ now greedily detects all modules which have an
912 __all__ attribute, rather than using a hardcoded and incomplete list.
913
R. David Murray0bc11ae2009-10-18 22:18:17 +0000914- Issue #7058: Added save/restore for things like sys.argv and cwd to
915 runtest_inner in regrtest, with warnings if the called test modifies them,
916 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000917
Mark Dickinson2e304402009-10-04 18:43:54 +0000918- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
919
Brett Cannon3c273842009-07-20 00:14:29 +0000920- Fixed tests in importlib.test.source.test_abc_loader that were masking
921 the proper exceptions that should be raised for missing or improper code
922 object bytecode.
923
Brett Cannonb49c70c2009-07-15 04:08:33 +0000924- Removed importlib's custom test discovery code and switched to
925 unittest.TestLoader.discover().
926
Antoine Pitroua69ba652010-01-18 21:20:53 +0000927Tools/Demos
928-----------
929
930- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
931 added to the `Tools/` directory. They were previously living in the
932 sandbox.
933
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000934
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000935What's New in Python 3.1?
936=========================
937
938*Release date: 27-June-2009*
939
940Core and Builtins
941-----------------
942
Mark Dickinsonad195562009-06-24 19:01:32 +0000943- Issue #6334: Fix bug in range length calculation for ranges with
944 large arguments.
945
Raymond Hettinger159eac92009-06-23 20:38:54 +0000946- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
947 because it wasn't recognized as a sequence).
948
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000949Library
950-------
951
Georg Brandld07ac642009-08-13 07:50:57 +0000952- Issue #6126: Fixed pdb command-line usage.
953
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000954- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000955
Facundo Batista10706e22009-06-19 20:34:30 +0000956- Issue #6274: Fixed possible file descriptors leak in subprocess.py
957
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000958- Accessing io.StringIO.buffer now raises an AttributeError instead of
959 io.UnsupportedOperation.
960
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000961- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000962 (On Unix)
963
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000964- Issue #1202: zipfile module would cause a struct.error when attempting to
965 store files with a CRC32 > 2**31-1.
966
Matthias Kloseab2b7552009-06-22 13:05:52 +0000967Extension Modules
968-----------------
969
970- Issue #5590: Remove unused global variable in pyexpat extension.
971
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000972
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000973What's New in Python 3.1 Release Candidate 2?
974=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000975
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000976*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000977
978Core and Builtins
979-----------------
980
Raymond Hettinger94f55832009-06-12 18:40:16 +0000981- Fixed SystemError triggered by "range([], 1, -1)".
982
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000983- Issue #5924: On Windows, a large PYTHONPATH environment variable
984 (more than 255 characters) would be completely ignored.
985
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000986- Issue #4547: When debugging a very large function, it was not always
987 possible to update the lineno attribute of the current frame.
988
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000989- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000990 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000991
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000992Library
993-------
994
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000995- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000996 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000997 Popen. Tested under win32 to build the py-postgresql project.
998
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000999- Issue #6258: Support AMD64 in bdist_msi.
1000
R. David Murray58641de2009-06-12 15:33:19 +00001001- Issue #6195: fixed doctest to no longer try to read 'source' data from
1002 binary files.
1003
Vinay Sajipaffbd872009-06-11 10:11:47 +00001004- Issue #5262: Fixed bug in next rollover time computation in
1005 TimedRotatingFileHandler.
1006
Benjamin Peterson0926ad12009-06-06 18:02:12 +00001007- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
1008 errors property. Additionally, the errors and encoding properties of StringIO
1009 are always None now.
1010
Antoine Pitroud9dfaa92009-06-04 20:32:06 +00001011- Issue #6137: The pickle module now translates module names when loading
1012 or dumping pickles with a 2.x-compatible protocol, in order to make data
1013 sharing and migration easier. This behaviour can be disabled using the
1014 new `fix_imports` optional argument.
1015
Raymond Hettinger40925d22009-06-04 18:32:39 +00001016- Removed the ipaddr module.
1017
Georg Brandlb54d8012009-06-04 09:11:51 +00001018- Issue #3613: base64.{encode,decode}string are now called
1019 base64.{encode,decode}bytes which reflects what type they accept and return.
1020 The old names are still there as deprecated aliases.
1021
Georg Brandl317185a2009-06-04 09:00:56 +00001022- Issue #5767: Remove sgmlop support from xmlrpc.client.
1023
Martin v. Löwis74b7e442009-06-01 04:23:07 +00001024- Issue #6150: Fix test_unicode on wide-unicode builds.
1025
Antoine Pitrouc06de472009-05-30 21:04:26 +00001026- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
1027 parameters.
1028
Martin v. Löwis79b13872009-06-01 04:13:14 +00001029Windows
1030-------
1031
Martin v. Löwisb7a51562009-06-07 17:55:17 +00001032- Issue #6221: Delete test registry key before running the test.
1033
Martin v. Löwis79b13872009-06-01 04:13:14 +00001034- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
1035
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +00001036C-API
1037-----
1038
1039- Issue #5735: Python compiled with --with-pydebug should throw an
1040 ImportError when trying to import modules compiled without
1041 --with-pydebug, and vice-versa.
1042
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +00001043
Brett Cannonc6d936e2009-06-07 20:09:53 +00001044Build
1045-----
1046
1047- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
1048 added LIBS to OS X framework builds.
1049
Ronald Oussoren99aab652009-06-08 21:22:57 +00001050- Issue #5809: Specifying both --enable-framework and --enable-shared is
1051 an error. Configure now explicity tells you about this.
1052
1053
Brett Cannonc6d936e2009-06-07 20:09:53 +00001054
Mark Dickinson4eb88b32009-05-11 16:41:34 +00001055What's New in Python 3.1 release candidate 1?
1056=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001057
Benjamin Petersone6ad3872009-05-30 15:30:16 +00001058*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001059
1060Core and Builtins
1061-----------------
1062
Martin v. Löwis8ed91b22009-05-29 16:22:26 +00001063- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
1064 of the command line.
1065
Martin v. Löwisc15bdef2009-05-29 14:47:46 +00001066- Issue #6012: Add cleanup support to O& argument parsing.
1067
Eric Smith41669ca2009-05-23 14:23:22 +00001068- Issue #6089: Fixed str.format with certain invalid field specifiers
1069 that would raise SystemError.
1070
Raymond Hettinger2bcde142009-05-29 04:52:27 +00001071- Issue #5982: staticmethod and classmethod now expose the wrapped
1072 function with __func__.
1073
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +00001074- Added support for multiple context managers in the same with-statement.
1075 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +00001076
Mark Dickinson6b1e43b2009-05-20 18:41:04 +00001077- Issue #5829: complex("1e500") no longer raises OverflowError. This
1078 makes it consistent with float("1e500") and interpretation of real
1079 and imaginary literals.
1080
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +00001081- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
1082
R. David Murraydd226ea2009-05-13 12:27:21 +00001083- Issue #5994: the marshal module now has docstrings.
1084
Mark Dickinsond1ec8b22009-05-11 15:45:15 +00001085- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
1086 (1) inf and nan strings with trailing whitespace were incorrectly
1087 rejected; (2) parsing of strings representing infinities and nans
1088 was locale aware; and (3) the interpretation of fromhex('-nan')
1089 didn't match that of float('-nan').
1090
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001091Library
1092-------
1093
Martin v. Löwisb6a748b2009-05-29 15:23:17 +00001094- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
1095
R. David Murrayfb123912009-05-28 18:19:00 +00001096- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
1097
R. David Murray1f1b9d32009-05-27 20:56:59 +00001098- Issue #6121: pydoc now ignores leading and trailing spaces in the
1099 argument to the 'help' function.
1100
Georg Brandlfaf41492009-05-26 18:31:11 +00001101- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
1102 arguments for strings with a space in them.
1103
Raymond Hettinger089ba7f2009-05-27 00:38:24 +00001104- collections.namedtuple() was not working with the following field
1105 names: cls, self, tuple, itemgetter, and property.
1106
Benjamin Peterson14a3dd72009-05-25 00:51:58 +00001107- In unittest, using a skipping decorator on a class is now equivalent to
1108 skipping every test on the class. The ClassTestSuite class has been removed.
1109
Martin v. Löwis70ccd162009-05-24 19:47:22 +00001110- Issue #6050: Don't fail extracting a directory from a zipfile if
1111 the directory already exists.
1112
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001113- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1114 than an int, which makes some operations possible under 64-bit Linux (e.g.
1115 DN_MULTISHOT with F_NOTIFY).
1116
Antoine Pitrou716c4442009-05-23 19:04:03 +00001117- Issue #5761: Add the name of the underlying file to the repr() of various
1118 IO objects.
1119
R. David Murraycaa27b72009-05-23 18:49:56 +00001120- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1121 by Musashi Tamura, tests by Marcin Bachry.
1122
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001123- Issue #1983: Fix functions taking or returning a process identifier to use
1124 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1125 a process identifier type wider than the standard C integer type.
1126
R. David Murray87e20742009-05-23 01:30:26 +00001127- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1128 Patch by Farhan Ahmad, test by Marcin Bachry.
1129
Antoine Pitrou6e610062009-05-15 17:04:50 +00001130- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1131 deepcopy()ing.
1132
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001133- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1134
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001135- Issue #5918: Fix a crash in the parser module.
1136
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001137- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1138
Antoine Pitroue4501852009-05-14 18:55:55 +00001139- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1140 library. This means, for example, that opening an UTF-16 text file in
1141 append mode doesn't add a BOM at the end of the file if the file isn't
1142 empty.
1143
R. David Murray74b89242009-05-13 17:33:03 +00001144- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1145 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1146 corrects a pydoc regression.
1147
R. David Murray99352742009-05-07 18:24:38 +00001148- Issue 5955: aifc's close method did not close the file it wrapped,
1149 now it does. This also means getfp method now returns the real fp.
1150
Benjamin Peterson932073a2009-05-23 16:14:33 +00001151Installation
1152------------
1153
1154- Issue #6047: fullinstall has been removed because Python 3's executable will
1155 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001156
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001157- Lib/smtpd.py is no longer installed as a script.
1158
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001159Extension Modules
1160-----------------
1161
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001162- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001163
Martin v. Löwise23c8682009-05-29 16:01:34 +00001164- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1165
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001166- Issue #6093: Fix off-by-one error in locale.strxfrm.
1167
Benjamin Peterson744af442009-05-23 18:51:49 +00001168- The _functools and _locale modules are now built into the libpython shared
1169 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001170
Antoine Pitrou20327222009-05-24 20:39:11 +00001171Build
1172-----
1173
1174- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1175 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1176 Clinton Roy.
1177
Brett Cannon1262e7c2009-05-11 01:47:11 +00001178Tests
1179-----
1180
1181- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1182 tests on darwin even when the OS was installed on a case-sensitive
1183 filesystem. Also fixed tests that should not be run when
1184 sys.dont_write_bytecode is true.
1185
1186
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001187What's New in Python 3.1 beta 1?
1188================================
1189
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001190*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001191
1192Core and Builtins
1193-----------------
1194
Mark Dickinson865e01a2009-05-07 16:37:01 +00001195- Issue #5914: Add new C API function PyOS_string_to_double, and
1196 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1197
Eric Smith741191f2009-05-06 13:08:15 +00001198- Issue #3382: float.__format__, complex.__format__, and %-formatting
1199 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1200 affects nan -> NAN and inf -> INF.
1201
Mark Hammond5a607a32009-05-06 08:04:54 +00001202- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1203 in all operations, including splitdrive, split, etc. splitunc() now issues
1204 a PendingDeprecation warning.
1205
Eric Smith63376222009-05-05 14:04:18 +00001206- Issue #5920: For float.__format__, change the behavior with the
1207 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1208 to be like 'g' but with at least one decimal point and with a
1209 default precision of 12. Previously, the behavior the same but with
1210 a default precision of 6. This more closely matches str(), and
1211 reduces surprises when adding alignment flags to the empty
1212 presentation type. This also affects the new complex.__format__ in
1213 the same way.
1214
Martin v. Löwis011e8422009-05-05 04:43:17 +00001215- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1216
R. David Murrayb18500d2009-05-04 22:59:07 +00001217- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1218 shadowed by classtype's, even if it was None. property now
1219 inserts the __doc__ into the subclass instance __dict__.
1220
Antoine Pitrou244651a2009-05-04 18:56:13 +00001221- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1222 sequences. Patch by Nick Barnes and Victor Stinner.
1223
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001224- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001225
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001226- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1227 received a new method, detach(). detach() disconnects the underlying stream
1228 from the buffer or text IO and returns it.
1229
Mark Dickinson33841c32009-05-01 15:37:04 +00001230- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1231 floats with absolute value over 1e50. Also remove length
1232 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1233 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001234
Eric Smith741191f2009-05-06 13:08:15 +00001235- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001236 format(complex(1, 2./3), '.5') now produces a sensible result.
1237
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001238- Issue #5864: Fix empty format code formatting for floats so that it
1239 never gives more than the requested number of significant digits.
1240
Eric Smith6dc46f52009-04-27 20:39:49 +00001241- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1242 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1243
Eric Smithcc32a112009-04-26 21:35:14 +00001244- Issue #5835: Deprecate PyOS_ascii_formatd.
1245
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001246- Issue #4971: Fix titlecase for characters that are their own
1247 titlecase, but not their own uppercase.
1248
Benjamin Peterson193152c2009-04-25 01:08:45 +00001249- Issue #5283: Setting __class__ in __del__ caused a segfault.
1250
Mark Dickinsonad476da2009-04-23 19:14:16 +00001251- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1252 z involves nans, infs or negative zeros.
1253
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001254- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001255
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001256- Issue #1869 (and many duplicates): make round(x, n) correctly
1257 rounded for a float x, by using the decimal <-> binary conversions
1258 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1259 consistently agrees with format(x, '.2f').
1260
Benjamin Petersonae937c02009-04-18 20:54:08 +00001261- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1262 some builtin types.
1263
Eric Smith0923d1d2009-04-16 20:16:10 +00001264- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1265
Eric Smith35e84722009-04-16 20:21:28 +00001266- Issue #5515: str.format() type 'n' combined with commas and leading
1267 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001268
1269- Implement PEP 378, Format Specifier for Thousands Separator, for
1270 floats.
1271
Mark Dickinson3370cce2009-04-17 22:40:53 +00001272- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001273 1e11, not 1e12. This avoids printing 13 significant digits in
1274 situations where only 12 of them are correct. Example problem
1275 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1276 long time.)
1277
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001278- Issue #1580: On most platforms, use a 'short' float repr: for a
1279 finite float x, repr(x) now outputs a string based on the shortest
1280 sequence of decimal digits that rounds to x. Previous behaviour was
1281 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001282 Another minor difference is that the new repr switches to
1283 exponential notation at 1e16 instead of the previous 1e17; this
1284 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001285
1286 There's a new sys attribute sys.float_repr_style, which takes
1287 the value 'short' to indicate that we're using short float repr,
1288 and 'legacy' if the short float repr isn't available for one
1289 reason or another.
1290
1291 The float repr change involves incorporating David Gay's 'perfect
1292 rounding' code into the Python core (it's in Python/dtoa.c). As a
1293 secondary consequence, all string-to-float and float-to-string
1294 conversions (including all float formatting operations) will be
1295 correctly rounded on these platforms.
1296
1297 See issue 1580 discussions for details of platforms for which
1298 this change does not apply.
1299
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001300- Issue #5759: float() didn't call __float__ on str subclasses.
1301
Georg Brandlabc38772009-04-12 15:51:51 +00001302- The string.maketrans() function is deprecated; there is a new static method
1303 maketrans() on the bytes and bytearray classes. This removes confusion about
1304 the types string.maketrans() is supposed to work with, and mirrors the
1305 methods available on the str class.
1306
R. David Murraydc6da8a2009-04-09 22:16:43 +00001307- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1308 its clarity and its speed.
1309
Matthias Klose091c7b12009-04-07 13:24:27 +00001310- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1311 to avoid compiler warnings.
1312
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001313- Issue #3739: The unicode-internal encoder now reports the number of characters
1314 consumed like any other encoder (instead of the number of bytes).
1315
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001316Installation
1317------------
1318
1319- Issue #5756: Install idle and pydoc with a 3 suffix.
1320
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001321Library
1322-------
1323
Martin v. Löwis403117a2009-05-24 19:19:17 +00001324- Issue #5311: bdist_msi can now build packages that do not depend on a
1325 specific Python version.
1326
Raymond Hettingereb816952009-05-29 01:22:18 +00001327- Issue #5150: IDLE's format menu now has an option to strip trailing
1328 whitespace.
1329
Vinay Sajipaffbd872009-06-11 10:11:47 +00001330- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001331 the right type checkings anymore.
1332
Thomas Heller00cfc372009-05-05 19:04:40 +00001333- Issue #4875: On win32, ctypes.util.find_library does no longer
1334 return directories.
1335
Georg Brandl243ad662009-05-05 09:00:19 +00001336- Issue #5142: Add the ability to skip modules while stepping to pdb.
1337
Georg Brandl991f9202009-05-05 08:31:54 +00001338- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1339 looking for files given by a relative filename.
1340
Georg Brandleaa84ef2009-05-05 08:14:33 +00001341- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1342 turtle demos in Demo/turtle.
1343
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001344- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1345 extracting a file to the root directory.
1346
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001347- Issue #5913: os.listdir() should fail for empty path on windows.
1348
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001349- Issue #5084: unpickling now interns the attribute names of pickled objects,
1350 saving memory and avoiding growth in size of subsequent pickles. Proposal
1351 and original patch by Jake McGuire.
1352
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001353- The json module now works exclusively with str and not bytes.
1354
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001355- Issue #3959: The ipaddr module has been added to the standard library.
1356 Contributed by Google.
1357
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001358- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1359 error when a named pipe is encountered, rather than blocking infinitely.
1360
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001361- Issue #5857: tokenize.tokenize() now returns named tuples.
1362
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001363- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1364
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001365- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1366 string is already in normalized form, by performing a quick check beforehand.
1367 Original patch by Rauli Ruohonen.
1368
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001369- Issue #5853: calling a function of the mimetypes module from several threads
1370 at once could hit the recursion limit if the mimetypes database hadn't been
1371 initialized before.
1372
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001373- Issue #5854: Updated __all__ to include some missing names and remove some
1374 names which should not be exported.
1375
Thomas Heller34596a92009-04-24 20:50:00 +00001376- Issue #3102: All global symbols that the _ctypes extension defines
1377 are now prefixed with 'Py' or '_ctypes'.
1378
1379- Issue #5041: ctypes does now allow pickling wide character.
1380
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001381- Issue #5812: For the two-argument form of the Fraction constructor,
1382 Fraction(m, n), m and n are permitted to be arbitrary Rational
1383 instances.
1384
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001385- Issue #5812: Fraction('1e6') is valid: more generally, any string
1386 that's valid for float() is now valid for Fraction(), with the
1387 exception of strings representing NaNs and infinities.
1388
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001389- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1390 bugs. Patch by Brian Quinlan.
1391
R. David Murray9e94ddf2009-04-13 17:06:33 +00001392- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1393 results in a handle_expt_event call, not handle_read_event, and POLLERR
1394 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1395 dispatcher now has an 'ignore_log_types' attribute for suppressing
1396 log messages, which is set to 'warning' by default.
1397
Matthias Klosea3d29e82009-04-07 13:13:10 +00001398- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1399 new arguments introduced in 2.5.
1400
Walter Dörwald1b08b302009-04-25 14:13:56 +00001401- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1402 makeunicodedata.py and regenerated the Unicode database (This fixes
1403 u'\u1d79'.lower() == '\x00').
1404
Matthias Klose535336f2009-04-07 13:49:45 +00001405Extension Modules
1406-----------------
1407
Benjamin Petersone04b6272009-05-04 22:25:21 +00001408- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1409 pwd.
1410
Mark Dickinsonea835e72009-04-19 20:40:33 +00001411- Issue #5463: In struct module, remove deprecated float coercion
1412 for integer type codes: struct.pack('L', 0.3) should now raise
1413 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1414 The version number has been bumped to 0.3.
1415
Matthias Klose535336f2009-04-07 13:49:45 +00001416- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1417 using Berkley-DB.
1418
Nick Coghlan47384702009-04-22 16:13:36 +00001419Tests
1420-----
1421
1422- Issue #5354: New test support function import_fresh_module() makes
1423 it easy to import both normal and optimised versions of modules.
1424 test_heapq and test_warnings have been adjusted to use it, tests for
1425 other modules with both C and Python implementations in the stdlib
1426 can be adjusted to use it over time.
1427
Walter Dörwald4ba80132009-04-25 12:48:43 +00001428- Issue #5837: Certain sequences of calls to set() and unset() for
1429 support.EnvironmentVarGuard objects restored the environment variables
1430 incorrectly on __exit__.
1431
Benjamin Petersonb173f782009-05-05 22:31:58 +00001432C-API
1433-----
1434
1435- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1436
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001437
Benjamin Petersond1735892009-03-07 18:46:21 +00001438What's New in Python 3.1 alpha 2?
1439=================================
1440
Benjamin Peterson88f14352009-04-04 21:06:52 +00001441*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001442
1443Core and Builtins
1444-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001445
Eric Smith1e1d7d22009-04-03 22:25:33 +00001446- Implement PEP 378, Format Specifier for Thousands Separator, for
1447 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001448
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001449- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1450
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001451- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1452 byte, and the 'C' code only accepts a unicode character.
1453
Georg Brandl406b3d82009-04-11 21:24:37 +00001454- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1455 when hitting the recursion limit under certain circumstances.
1456
Brett Cannon0759dd62009-04-01 18:13:07 +00001457- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1458
Georg Brandlab6f2f62009-03-31 04:16:10 +00001459- Fix a segfault when running test_exceptions with coverage, caused by
1460 insufficient checks in accessors of Exception.__context__.
1461
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001462- Issue #5604: non-ASCII characters in module name passed to
1463 imp.find_module() were converted to UTF-8 while the path is
1464 converted to the default filesystem encoding, causing nonsense.
1465
Benjamin Peterson09832742009-03-26 17:15:46 +00001466- Issue #5126: str.isprintable() returned False for space characters.
1467
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001468- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1469 the end sys.path, for compatibility with the system install of Python.
1470
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001471- Issue #4688: Add a heuristic so that tuples and dicts containing only
1472 untrackable objects are not tracked by the garbage collector. This can
1473 reduce the size of collections and therefore the garbage collection overhead
1474 on long-running programs, depending on their particular use of datatypes.
1475
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001476- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1477 improve its performance. Long divisions and remainder operations
1478 are now between 50% and 150% faster.
1479
Mark Dickinsonbd792642009-03-18 20:06:12 +00001480- Issue #4258: Make it possible to use base 2**30 instead of base
1481 2**15 for the internal representation of integers, for performance
1482 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1483 --enable-big-digits option to configure, which overrides the
1484 default. Add sys.int_info structseq to provide information about
1485 the internal format.
1486
Mark Dickinson081dfee2009-03-18 14:47:41 +00001487- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1488 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1489 and sizeof(Py_UNICODE) == 2.
1490
Eric Smith8ec90442009-03-14 12:29:34 +00001491- Issue #5237: Allow auto-numbered fields in str.format(). For
1492 example: '{} {}'.format(1, 2) == '1 2'.
1493
Antoine Pitrou652e7072009-03-13 19:25:20 +00001494- Issue #5392: when a very low recursion limit was set, the interpreter would
1495 abort with a fatal error after the recursion limit was hit twice.
1496
Matthias Klose042f1332009-04-04 14:32:42 +00001497- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1498 short file names.
1499
Benjamin Petersond1735892009-03-07 18:46:21 +00001500Library
1501-------
1502
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001503- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001504 mailbox.MH.get_message().
1505
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001506- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1507 error substitutions from non-strict codec error callbacks in
1508 incrementalencoder and StreamWriter.
1509
Georg Brandl33c28812009-04-01 23:07:29 +00001510- Issue #5656: Fix the coverage reporting when running the test suite with
1511 the -T argument.
1512
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001513- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1514
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001515- Issue #5624: Fix the _winreg module name still used in several modules.
1516
Benjamin Petersona1b49012009-03-31 23:11:32 +00001517- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1518
Jesse Nollera9314042009-03-31 22:36:44 +00001519- Issue #5619: Multiprocessing children disobey the debug flag and causes
1520 popups on windows buildbots. Patch applied to work around this issue.
1521
Jesse Noller32d68c22009-03-31 18:48:42 +00001522- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1523
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001524- Issue #5387: Fixed mmap.move crash by integer overflow.
1525
Jesse Nollerf8d00852009-03-31 03:25:07 +00001526- Issue #5261: Patch multiprocessing's semaphore.c to support context
1527 manager use: "with multiprocessing.Lock()" works now.
1528
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001529- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1530 bytes already but the failure was non-obvious.
1531
Jesse Noller7af4ef82009-03-30 16:47:15 +00001532- Issue #5177: Multiprocessing's SocketListener class now uses
1533 socket.SO_REUSEADDR on all connections so that the user no longer needs
1534 to wait 120 seconds for the socket to expire.
1535
Benjamin Peterson48e24782009-03-29 13:02:52 +00001536- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1537
Antoine Pitrou66994e12009-03-29 00:45:26 +00001538- Issue #1174606: Calling read() without arguments of an unbounded file
1539 (typically /dev/zero under Unix) could crash the interpreter.
1540
Benjamin Peterson59406a92009-03-26 17:10:29 +00001541- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1542 io.BufferedRandom have been deprecated for removal in Python 3.2.
1543
Lars Gustäbel42e00912009-03-22 20:34:29 +00001544- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1545 forever on incomplete input. That caused tarfile.open() to hang when used
1546 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1547 partial bzip2 compressed data.
1548
Mark Dickinson79f52032009-03-17 23:12:51 +00001549- Issue #2110: Add support for thousands separator and 'n' type
1550 specifier to Decimal.__format__
1551
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001552- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1553 '>' alignment characters.
1554
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001555- The error detection code in FileIO.close() could fail to reflect the `errno`
1556 value, and report it as -1 instead.
1557
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001558- Issue #5016: FileIO.seekable() could return False if the file position
1559 was negative when truncated to a C int. Patch by Victor Stinner.
1560
Mark Dickinsonae681df2009-03-21 10:26:31 +00001561Extension Modules
1562-----------------
1563
Benjamin Petersone099b372009-04-04 17:09:35 +00001564- Issue #5391: mmap now deals exclusively with bytes.
1565
Mark Dickinsonae681df2009-03-21 10:26:31 +00001566- Issue #5463: In struct module, remove deprecated overflow wrapping
1567 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001568 struct.error instead of returning b'\xff\xff\xff\xff'. The
1569 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1570 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001571
Benjamin Petersond1735892009-03-07 18:46:21 +00001572
Benjamin Petersona58a6262009-03-07 16:34:40 +00001573What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001574================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001575
Benjamin Petersona58a6262009-03-07 16:34:40 +00001576*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001577
1578Core and Builtins
1579-----------------
1580
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001581- The io module has been reimplemented in C for speed.
1582
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001583- Give dict views an informative __repr__.
1584
Eric Smith5e5c0db2009-02-20 14:25:03 +00001585- Issue #5247: Improve error message when unknown format codes are
1586 used when using str.format() with str, int, and float arguments.
1587
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001588- Issue #5249: time.strftime returned malformed string when format string
1589 contained non ascii character on windows.
1590
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001591- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1592 source has already been decoded into str.
1593
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001594- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1595 rotating the object pointer by 4 bits to the right.
1596
Mark Dickinson87ec0852009-02-09 17:15:59 +00001597- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1598 it now forces its argument to double before testing for infinity.
1599
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001600- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1601 returns a non-number type.
1602
Benjamin Peterson87618552009-02-08 15:00:52 +00001603- Issue #5182: Removed memoryview.__str__.
1604
Mark Dickinsonc008a172009-02-01 13:59:22 +00001605- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1606 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001607 the type definition cmpfunc. The tp_compare slot has been renamed
1608 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001609
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001610- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001611 were suppressing all exceptions. These include list() and bytearray().
1612
Mark Dickinson1124e712009-01-28 21:25:58 +00001613- Issue #4707: round(x, n) now returns an integer if x is an integer.
1614 Previously it returned a float.
1615
Antoine Pitroub52ec782009-01-25 16:34:23 +00001616- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1617 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1618 evaluation loop is compiled with a new dispatch mechanism which gives
1619 speedups of up to 20%, depending on the system, on various benchmarks.
1620
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001621- Issue #4874: Most builtin decoders now reject unicode input.
1622
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001623- Issue #4842: Don't allow trailing 'L' when constructing an integer
1624 from a string.
1625
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001626- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1627
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001628- Issue #4838: When a module is deallocated, free the memory backing the
1629 optional module state data.
1630
Mark Dickinson8055afd2009-01-17 10:04:45 +00001631- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1632 type to (void *).
1633
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001634- Issue #4935: The overflow checking code in the expandtabs() method common
1635 to str, bytes and bytearray could be optimized away by the compiler, letting
1636 the interpreter segfault instead of raising an error.
1637
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001638- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1639 __next__ method.
1640
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001641- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1642 function no longer attempt to call the __long__ slot to convert an object
1643 to an integer. Only the __int__ and __trunc__ slots are examined.
1644
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001645- Issue #4893: Use NT threading on CE.
1646
Martin v. Löwisec59d042009-01-12 07:59:10 +00001647- Issue #4915: Port sysmodule to Windows CE.
1648
Antoine Pitrouab868312009-01-10 15:40:25 +00001649- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1650 common cases are optimized thanks to a dedicated fast path and a moderate
1651 amount of loop unrolling.
1652
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001653- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1654 collecting the oldest generation) so that allocating lots of objects without
1655 destroying them does not show quadratic performance. Based on a proposal by
1656 Martin von Löwis at
1657 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1658
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001659- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001660 having been closed (for instance, a read() call could return some
1661 previously buffered data). Patch by Dmitry Vasiliev.
1662
Antoine Pitrou05608432009-01-09 18:53:14 +00001663- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1664 flag to work properly. Furthermore, when specifying -u, the text stdout
1665 and stderr streams have line-by-line buffering enabled (the default being
1666 to buffer arbitrary chunks of data).
1667
Raymond Hettinger35631532009-01-09 03:58:09 +00001668- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1669 instead of ints (reducing its size from 4 to 8 times thereby reducing
1670 Python's overall memory).
1671
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001672- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1673 an existing .py counterpart, override the co_filename attributes of all
1674 code objects if the original filename is obsolete (which can happen if the
1675 file has been renamed, moved, or if it is accessed through different paths).
1676 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1677
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001678- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1679 one byte. Also fixes the meaning of len() so that it returns the number of
1680 items, rather than the size in bytes.
1681
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001682- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1683
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001684- Issue #4747: When the terminal does not use utf-8, executing a script with
1685 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1686
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001687- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001688 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001689
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001690- Issue #3680: Reference cycles created through a dict, set or deque iterator
1691 did not get collected.
1692
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001693- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1694 where the tp_hash and tp_dict slots are both NULL.
1695
Georg Brandlccc47b62008-12-28 11:44:14 +00001696- Issue #4759: None is now allowed as the first argument of
1697 bytearray.translate(). It was always allowed for bytes.translate().
1698
Skip Montanaro80072cb2008-12-23 03:51:14 +00001699- Added test case to ensure attempts to read from a file opened for writing
1700 fail.
1701
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001702- Issue #3106: Speedup some comparisons (str/str and int/int).
1703
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001704- Issue #2183: Simplify and optimize bytecode for list, dict and set
1705 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1706
Antoine Pitrou621601a2008-12-17 23:18:19 +00001707- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1708 print elapsed times, not only when some objects are uncollectable /
1709 unreachable. Original patch by Neil Schemenauer.
1710
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001711- Issue #3439: Add a bit_length method to int.
1712
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001713- Issue #2173: When getting device encoding, check that return value of
1714 nl_langinfo is not the empty string. This was causing silent build
1715 failures on OS X.
1716
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001717- Issue #4597: Fixed several opcodes that weren't always propagating
1718 exceptions.
1719
1720- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001721 context manager returns a value that cannot be converted to a bool.
1722
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001723- Issue #4445: Replace "sizeof(PyBytesObject)" with
1724 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1725 bytes instances. On a typical machine this saves 3 bytes of memory
1726 (on average) per allocation of a bytes instance.
1727
Christian Heimesa872de52008-12-05 08:26:55 +00001728- Issue #4533: File read operation was dreadfully slow due to a slowly
1729 growing read buffer. Fixed by using the same growth rate algorithm as
1730 Python 2.x.
1731
Antoine Pitrou5504e892008-12-06 21:27:53 +00001732- Issue #4509: Various issues surrounding resize of bytearray objects to
1733 which there are buffer exports (e.g. memoryview instances).
1734
Georg Brandlf9734072008-12-07 15:30:06 +00001735- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1736 method on file objects with closefd=False. The file descriptor is still
1737 kept open but the file object behaves like a closed file. The ``FileIO``
1738 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001739
Antoine Pitroubc420402008-12-07 20:14:49 +00001740- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1741 larger than 1.
1742
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001743- Issue #4748: Lambda generators no longer return a value.
1744
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001745- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1746
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001747- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1748 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1749 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1750 of using the replace error handler in PyUnicode_DecodeUTF8().
1751
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001752Library
1753-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001754
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001755- Issue #7071: byte-compilation in Distutils is now done with respect to
1756 sys.dont_write_bytecode.
1757
Tarek Ziadé978cca62009-10-24 13:38:27 +00001758- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1759 raised. Initial patch by Ezio Melotti.
1760
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001761- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001762 Distutils.
1763
Tarek Ziadé31d46072009-09-21 13:55:19 +00001764- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1765
Tarek Ziadé165581c2009-09-09 08:48:07 +00001766- Issue #6163: Fixed HP-UX runtime library dir options in
1767 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1768 Michael Haubenwallner.
1769
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001770- Issue #6693: New functions in site.py to get user/global site packages paths.
1771
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001772- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1773 opening an empty or very small file.
1774
1775- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001776 behavior is similar when used with -O.
1777
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001778- unittest has been split up into a package. All old names should still work.
1779
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001780- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1781 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1782 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1783 for the obsolete get_versions() functions.
1784
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001785- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1786
1787- Issue #6314: logging: Extra checks on the "level" argument in more places.
1788
1789- Issue #2622: Fixed an ImportError when importing email.messsage from a
1790 standalone application built with py2exe or py2app.
1791
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001792- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001793
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001794- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001795 attribute.
1796
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001797- Issue #6413: Fixed the log level in distutils.dist for announce.
1798
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001799- Issue #6403: Fixed package path usage in build_ext.
1800
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001801- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1802 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1803 descriptor errors
1804
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001805- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001806 extension in a subdirectory if the extension name had dots.
1807
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001808- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001809 unixcompiler. Original patch by Sridhar Ratnakumar.
1810
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001811- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1812 httplib, allowing the usage of http_proxy.
1813
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001814- Issue #6287: Added the license field in Distutils documentation.
1815
Tarek Ziadéff543362009-06-11 09:25:41 +00001816- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1817
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001818- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1819 in Makefiles. This prevents compile errors when using syntax like:
1820 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1821
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001822- Issue #6131: test_modulefinder leaked when run after test_distutils.
1823 Patch by Hirokazu Yamamoto.
1824
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001825- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1826
Vinay Sajipaffbd872009-06-11 10:11:47 +00001827- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001828 and tests on pywin32 by Tim Golden.
1829
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001830- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1831
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001832- Issue #6046: Fixed the library extension when distutils build_ext is used
1833 inplace. Initial patch by Roumen Petrov.
1834
Vinay Sajipaffbd872009-06-11 10:11:47 +00001835- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001836 subcommand.
1837
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001838- Issue #6022: a test file was created in the current working directory by
1839 test_get_outputs in Distutils.
1840
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001841- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1842 inplace option. Initial patch by kxroberto.
1843
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001844- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1845 for old-style extensions.
1846
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001847- Issue #5976: Fixed Distutils test_check_environ.
1848
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001849- Issue #5941: Distutils build_clib command was not working anymore because
1850 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1851 Makefile besides AR and make Distutils use it. Original patch by David
1852 Cournapeau.
1853
R. David Murrayb507d2e2009-04-29 15:34:32 +00001854- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1855
Vinay Sajipaffbd872009-06-11 10:11:47 +00001856- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001857 anymore.
1858
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001859- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001860 sysconfig.get_config_vars.
1861
Tarek Ziadé23336082009-04-25 12:39:56 +00001862- Issue #4951: Fixed failure in test_httpservers.
1863
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001864- Issue #5795: Fixed test_distutils failure on Debian ppc.
1865
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001866- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1867
Georg Brandl1f9fa312009-04-27 16:42:58 +00001868- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1869 a value in SafeConfigParser.
1870
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001871- Issue #5732: added a new command in Distutils: check.
1872
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001873- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001874 platforms. Initial patch by Paul Moore.
1875
Tarek Ziadéf6370502009-04-05 22:57:21 +00001876- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1877 Initial fix by Steven Bethard.
1878
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001879- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1880 Initial fix by Wayne Davison.
1881
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001882- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001883
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001884- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001885
Brett Cannonf47e84c2009-04-01 16:06:01 +00001886- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1887 instead of performing them in functions. Helps prevent import deadlocking in
1888 threads.
1889
R. David Murraye59482e2009-04-01 03:42:00 +00001890- Issue #2522: locale.format now checks its first argument to ensure it has
1891 been passed only one pattern, avoiding mysterious errors where it appeared
1892 that it was failing to do localization.
1893
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001894- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1895 Brandl.
1896
Antoine Pitrou350370c2009-03-14 00:13:13 +00001897- Issue #1222: locale.format() bug when the thousands separator is a space
1898 character.
1899
Tarek Ziadé516db942009-03-11 12:52:00 +00001900- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1901 Tim Golden.
1902
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001903- collections.deque() objects now have a read-only attribute called maxlen.
1904
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001905- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1906 it is has been populated and properly configured in order to prevent
1907 window flashing.
1908
Guilherme Polo56f5be52009-03-07 01:54:57 +00001909- Issue #4792: Prevent a segfault in _tkinter by using the
1910 guaranteed to be safe interp argument given to the PythonCmd in place of
1911 the Tcl interpreter taken from a PythonCmd_ClientData.
1912
1913- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1914
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001915- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1916 Original patch by Akira Kitada.
1917
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001918- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1919
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001920- Issue #5385: Fixed mmap crash after resize failure on windows.
1921
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001922- Issue #5179: Fixed subprocess handle leak on failure on windows.
1923
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001924- PEP 372: Added collections.OrderedDict().
1925
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001926- The _asdict() for method for namedtuples now returns an OrderedDict().
1927
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001928- configparser now defaults to using an ordered dictionary.
1929
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001930- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1931 import guess_extension`` was used.
1932
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001933- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1934 with same tagname but larger size than first map. (Windows)
1935
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001936- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1937 overrun.
1938
Tarek Ziadéf0721222009-02-28 10:16:43 +00001939- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1940 bdist_rpm command.
1941
1942- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1943
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001944- Issue #5052: make Distutils compatible with 2.3 again.
1945
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001946- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1947 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001948
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001949- Issue #5287: Add exception handling around findCaller() call to help out
1950 IronPython.
1951
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001952- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1953 The file was resized to wrong size.
1954
1955- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1956
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001957- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001958 from the package_data and the data_files metadata.
1959
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001960- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001961 support.TempdirManager, to avoid writing in the tests directory.
1962
Tarek Ziadé68c50952009-02-13 23:04:17 +00001963- Issue #4524: distutils build_script command failed with --with-suffix=3.
1964 Initial patch by Amaury Forgeot d'Arc.
1965
Tarek Ziadé811d6242009-02-13 22:26:15 +00001966- Issue #2461: added tests for distutils.util
1967
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001968- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1969 which inherited from numbers.py which did not have __slots__ defined. The
1970 numbers hierarchy now has its own __slots__ declarations.
1971
Antoine Pitroub353c122009-02-11 00:39:14 +00001972- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1973 encoding.
1974
Thomas Heller465c8022009-02-10 18:59:04 +00001975- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1976 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1977
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001978- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1979 under NT and OS2. Patch by Philip Jenvey.
1980
Brett Cannonbefb14f2009-02-10 02:10:16 +00001981- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1982 to be recreated. This avoids a timing hole thanks to the old reliance on the
1983 ctime of the files involved.
1984
Guilherme Polob681df42009-02-09 22:33:59 +00001985- Issue #5122: Synchronize tk load failure check to prevent a potential
1986 deadlock.
1987
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001988- Issue #1818: collections.namedtuple() now supports a keyword argument
1989 'rename' which lets invalid fieldnames be automatically converted to
1990 positional names in the form, _1, _2, ...
1991
Guilherme Poloae098992009-02-09 16:44:24 +00001992- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1993
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001994- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1995 public documented method ``ZipImporter.get_filename()``.
1996
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001997- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1998 the execution of packages by looking for and executing a ``__main__``
1999 submodule when a package name is supplied. Initial patch by Andi
2000 Vajda.
2001
Guilherme Polo491aee22009-02-06 23:16:11 +00002002- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
2003 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
2004 Tkapp_Call when calling from a thread different than the one that created
2005 the Tcl interpreter. Patch by Robert Hancock.
2006
Eric Smith0e5b5622009-02-06 01:32:42 +00002007- Issue #4285: Change sys.version_info to be a named tuple. Patch by
2008 Ross Light.
2009
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002010- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00002011 environment/Makefile. Patch by Douglas Greiman.
2012
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00002013- Issue #1276768: The verbose option was not used in the code of
2014 distutils.file_util and distutils.dir_util.
2015
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002016- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00002017 --enabled-shared activated. Initial patch by Dave Peterson.
2018
Guilherme Polo7f423952009-02-02 21:17:09 +00002019- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
2020
Raymond Hettinger85602262009-02-03 04:19:10 +00002021- The shelve module now defaults to pickle protocol 3.
2022
Brett Cannone61426e2009-01-30 01:31:34 +00002023- Fix a bug in the trace module where a bytes object from co_lnotab had its
2024 items being passed through ord().
2025
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00002026- Issue #2047: shutil.move() could believe that its destination path was
2027 inside its source path if it began with the same letters (e.g. "src" vs.
2028 "src.new").
2029
Guilherme Polo5f238482009-01-28 14:41:10 +00002030- Added the ttk module. See issue #2983: Ttk support for Tkinter.
2031
Raymond Hettinger89e12962009-01-26 02:09:03 +00002032- Removed isSequenceType(), isMappingType, and isNumberType() from the
2033 operator module; use the abstract base classes instead. Also removed
2034 the repeat() function; use mul() instead.
2035
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002036- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00002037 collections.namedtuple() relied on __name__ being defined.
2038
2039- Backport importlib from Python 3.1. Only the import_module() function has
2040 been backported to help facilitate transitions from 2.7 to 3.1.
2041
Tarek Ziadé0302cf52009-01-26 17:23:20 +00002042- Issue #1885: distutils. When running sdist with --formats=tar,gztar
2043 the tar file was overriden by the gztar one.
2044
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00002045- Issue #4863: distutils.mwerkscompiler has been removed.
2046
Raymond Hettingerd07d9392009-01-27 04:20:44 +00002047- Added a new itertools functions: combinations_with_replacement()
2048 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00002049
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002050- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00002051 allowed non-integer arguments.
2052
Jesse Noller41faa542009-01-25 03:45:53 +00002053- Fix and properly document the multiprocessing module's logging
2054 support, expose the internal levels and provide proper usage
2055 examples.
2056
Mark Dickinsoncddcf442009-01-24 21:46:33 +00002057- Issue #1672332: fix unpickling of subnormal floats, which was
2058 producing a ValueError on some platforms.
2059
Martin v. Löwisacbf4612009-01-24 16:19:45 +00002060- Issue #3881: Help Tcl to load even when started through the
2061 unreadable local symlink to "Program Files" on Vista.
2062
Martin v. Löwis59e47792009-01-24 14:10:07 +00002063- Issue #4710: Extract directories properly in the zipfile module;
2064 allow adding directories to a zipfile.
2065
Vinay Sajipb672b6d2009-02-19 12:36:11 +00002066- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00002067 --without-threads argument. When this occurs, _multiprocessing will
2068 be disabled, and not compiled.
2069
Antoine Pitrou08838b62009-01-21 00:55:13 +00002070- Issue #5008: When a file is opened in append mode with the new IO library,
2071 do an explicit seek to the end of file (so that e.g. tell() returns the
2072 file size rather than 0). This is consistent with the behaviour of the
2073 traditional 2.x file object.
2074
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002075- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
2076 parameter was set.
2077
Mark Dickinson8dd05142009-01-20 20:43:58 +00002078- Issue #4842: Always append a trailing 'L' when pickling longs using
2079 pickle protocol 0. When reading, the 'L' is optional.
2080
Brett Cannonafccd632009-01-20 02:21:27 +00002081- Add the importlib package.
2082
Jesse Noller9a0fc972009-01-18 21:12:58 +00002083- Issue #4301: Patch the logging module to add processName support, remove
2084 _check_logger_class from multiprocessing.
2085
Jesse Noller1cbb17a2009-01-18 19:45:18 +00002086- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002087 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00002088
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00002089- Issue #4959: inspect.formatargspec now works for keyword only arguments
2090 without defaults.
2091
Jesse Noller6214edd2009-01-19 16:23:53 +00002092- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
2093 for *nix machines for negative handles and large int handles. Without this check
2094 it is possible to segfault the interpreter.
2095
Jesse Nollerb0516a62009-01-18 03:11:38 +00002096- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
2097 in sharedctypes.py.
2098
2099- Issue #1225107: inspect.isclass() returned True for instances with a custom
2100 __getattr__.
2101
Gregory P. Smithde3369f2009-01-12 04:50:11 +00002102- Issue #3826 and #4791: The socket module now closes the underlying socket
2103 appropriately when it is being used via socket.makefile() objects
2104 rather than delaying the close by waiting for garbage collection to do it.
2105
Raymond Hettingerb8baf632009-01-14 02:20:07 +00002106- Issue #1696199: Add collections.Counter() for rapid and convenient
2107 counting.
2108
Antoine Pitrou308705e2009-01-10 16:22:51 +00002109- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
2110
Thomas Heller5e4e4272009-01-08 09:34:20 +00002111- Issue #4867: Fixed a crash in ctypes when passing a string to a
2112 function without defining argtypes.
2113
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00002114- Issue #4272: Add an optional argument to the GzipFile constructor to override
2115 the timestamp in the gzip stream. The default value remains the current time.
2116 The information can be used by e.g. gunzip when decompressing. Patch by
2117 Jacques Frechet.
2118
Mark Dickinson315a20a2009-01-04 21:34:18 +00002119- Restore Python 2.3 compatibility for decimal.py.
2120
Guilherme Polo3f5f8222009-01-03 22:00:39 +00002121- Issue #3638: Remove functions from _tkinter module level that depend on
2122 TkappObject to work with multiple threads.
2123
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002124- Issue #4718: Adapt the wsgiref package so that it actually works with
2125 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00002126 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
2127
Raymond Hettinger771ed762009-01-03 19:20:32 +00002128- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
2129 to the decimal module.
2130
Georg Brandl3a9b0622009-01-03 22:07:57 +00002131- Fractions.from_float() no longer loses precision for integers too big to
2132 cast as floats.
2133
Mark Dickinsonf9236412009-01-02 23:23:21 +00002134- Issue #4812: add missing underscore prefix to some internal-use-only
2135 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
2136
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002137- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00002138 did unnecessary work in the common case where no key function was specified.
2139
Georg Brandlb1441c72009-01-03 22:33:39 +00002140- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
2141 the function is not a generator.
2142
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002143- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
2144 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00002145
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002146- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00002147 function. Original patch by Thomas Heller.
2148
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00002149- Issue #3767: Convert Tk object to string in tkColorChooser.
2150
Martin v. Löwise354d782008-12-29 16:03:04 +00002151- Issue #3248: Allow placing ScrolledText in a PanedWindow.
2152
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00002153- Issue #4444: Allow assertRaises() to be used as a context handler, so that
2154 the code under test can be written inline if more practical.
2155
Georg Brandldb7b6b92009-01-01 15:53:14 +00002156- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2157 works as expected in the interactive environment.
2158
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002159- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2160 Gabriel Genellina.
2161
Antoine Pitrou180a3362008-12-14 16:36:46 +00002162- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2163 boundary.
2164
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002165- Issue #4223: inspect.getsource() will now correctly display source code
2166 for packages loaded via zipimport (or any other conformant PEP 302
2167 loader). Original patch by Alexander Belopolsky.
2168
2169- Issue #4201: pdb can now access and display source code loaded via
2170 zipimport (or any other conformant PEP 302 loader). Original patch by
2171 Alexander Belopolsky.
2172
2173- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2174 302 conformant loader) will now work correctly in most cases (they
2175 are still subject to the constraints that exist for all code running
2176 from inside a module loaded via a PEP 302 loader and attempting to
2177 perform IO operations based on __file__). Original patch by
2178 Alexander Belopolsky.
2179
2180- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2181 allows backporting to maintenance branches. Original patch by
2182 Alexander Belopolsky.
2183
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002184- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2185 a non-ASCII letter.
2186
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002187- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2188
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002189- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2190 codec cannot be found. This is for compatibility with the builtin behavior.
2191
Facundo Batista708d5812008-12-11 04:20:07 +00002192- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2193 give correct results in the case where one argument is a quiet NaN
2194 and the other is a finite number that requires rounding.
2195
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002196- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2197 libs.
2198
Georg Brandlf9734072008-12-07 15:30:06 +00002199- Added the subprocess.check_call_output() convenience function to get output
2200 from a subprocess on success or raise an exception on error.
2201
2202- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2203 support unusual filenames (such as those containing semi-colons) in
2204 Content-Disposition headers.
2205
2206- Issue #4384: Added logging integration with warnings module using
2207 captureWarnings(). This change includes a NullHandler which does nothing;
2208 it will be of use to library developers who want to avoid the "No handlers
2209 could be found for logger XXX" message which can appear if the library user
2210 doesn't configure logging.
2211
2212- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2213 exception.
2214
Georg Brandleee31162008-12-07 15:15:22 +00002215- Issue #4529: fix the parser module's validation of try-except-finally
2216 statements.
2217
2218- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2219 not a malformed option.
2220
2221- Added the subprocess.check_output() convenience function to get output
2222 from a subprocess on success or raise an exception on error.
2223
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002224- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2225 the corresponding tests now pass.
2226
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002227- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2228 it was calling the wrong open() function.
2229
Fred Drake9a0a65b2008-12-04 19:24:50 +00002230- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2231 support unusual filenames (such as those containing semi-colons) in
2232 Content-Disposition headers.
2233
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002234- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2235 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2236
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002237- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2238 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2239 and getservbyport().
2240
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002241- Windows locale mapping updated to Vista.
2242
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002243Tools/Demos
2244-----------
2245
Antoine Pitrou8a681222009-02-07 17:13:31 +00002246- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2247 and make it 2.6-compatible.
2248
Guilherme Poloa7d27972009-01-28 16:06:51 +00002249- Ttk demos added in Demo/tkinter/ttk/
2250
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002251- Issue #4677: add two list comprehension tests to pybench.
2252
Georg Brandlb1441c72009-01-03 22:33:39 +00002253
2254Build
2255-----
2256
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002257- Issue #6094: Build correctly with Subversion 1.7.
2258
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002259- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2260
Antoine Pitrou8966c992009-05-01 21:18:27 +00002261- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2262 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2263
Matthias Klose55708cc2009-04-30 08:06:49 +00002264- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002265 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002266
Matthias Klose906785c2009-02-22 23:18:38 +00002267- Link the shared python library with $(MODLIBS).
2268
Martin v. Löwis11f72102009-02-10 13:13:30 +00002269- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2270
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002271- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2272
Martin v. Löwise97637d2009-01-11 09:45:11 +00002273- Issue #4895: Use _strdup on Windows CE.
2274
Georg Brandlb1441c72009-01-03 22:33:39 +00002275- Issue #4472: "configure --enable-shared" now works on OSX
2276
2277- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2278
2279- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2280
2281- Issue #4289: Remove Cancel button from AdvancedDlg.
2282
2283- Issue #1656675: Register a drop handler for .py* files on Windows.
2284
2285- Issue #4120: Exclude manifest from extension modules in VS2008.
2286
2287- Issue #4091: Install pythonxy.dll in system32 again.
2288
2289- Issue #4018: Disable "for me" installations on Vista.
2290
2291- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2292
2293- Issue #4204: Fixed module build errors on FreeBSD 4.
2294
2295
2296C-API
2297-----
2298
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002299- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2300 NUL: Bogus TypeError detail string.
2301
Mark Dickinson21776072009-02-10 16:13:25 +00002302- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2303 for negative arguments. Previously, it raised TypeError.
2304
Georg Brandlb1441c72009-01-03 22:33:39 +00002305- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2306
2307- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2308 the GIL is released, or owned by another thread.
2309
2310- Issue #4122: On Windows, fix a compilation error when using the
2311 Py_UNICODE_ISSPACE macro in an extension module.
2312
2313
Mark Dickinsone675f082008-12-11 21:56:00 +00002314Extension Modules
2315-----------------
2316
Gregory P. Smith365a1862009-02-12 07:35:29 +00002317- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2318 supporting objects as input no matter how it was compiled (built in
2319 implementations or external openssl library).
2320
Mark Dickinson29500f62009-01-15 15:36:10 +00002321- Issue #4397: Fix occasional test_socket failure on OS X.
2322
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002323- Issue #4279: Fix build of parsermodule under Cygwin.
2324
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002325- Issue #4751: hashlib now releases the GIL when hashing large buffers
2326 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2327 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2328
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002329- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2330
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002331- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2332 or decompress several streams at once on multi-CPU systems. Also, the GIL
2333 is now released when computing the CRC of a large buffer. Patch by ebfe.
2334
Georg Brandlb1441c72009-01-03 22:33:39 +00002335- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2336
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002337- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2338
Mark Dickinsone675f082008-12-11 21:56:00 +00002339- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2340 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002341
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002342- Issue #4583: array.array would not always prohibit resizing when a buffer
2343 has been exported, resulting in an interpreter crash when accessing the
2344 buffer.
2345
Martin v. Löwis841edad2008-11-30 10:36:49 +00002346
Jack Diederiche0cbd692009-04-01 04:27:09 +00002347- Issue #5228: Make functools.partial objects can now be pickled.
2348
Guilherme Polo9de29af2009-01-28 20:40:48 +00002349Tests
2350-----
2351
Antoine Pitrou88909542009-06-29 13:54:42 +00002352- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2353 regression tests in parallel, shortening the total runtime.
2354
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002355- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2356 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2357 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2358 skip the tests if DISPLAY is defined but can't be used.
2359
R. David Murraya21e4ca2009-03-31 23:16:50 +00002360- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002361 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002362 from test support, which does the conversion.
2363
Guilherme Polo9de29af2009-01-28 20:40:48 +00002364- Issue #5083: New 'gui' resource for regrtest.
2365
2366
Brett Cannon7317c1e2008-11-25 19:19:17 +00002367Docs
2368----
2369
Georg Brandl52b92cc2008-05-25 09:43:03 +00002370
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002371**(For information about older versions, consult the HISTORY file.)**