blob: 1e0ae084a321a52f60020401d9c5be2aa17c56d6 [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
Eric Smithf7bb5782010-01-27 00:44:57 +000015- Issue #7766: Change sys.getwindowsversion() return value to a named
16 tuple and add the additional members returned in an OSVERSIONINFOEX
17 structure. The new members are service_pack_major, service_pack_minor,
18 suite_mask, and product_type.
19
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000020- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
21 could crash in many places because of the PyByteArray_AS_STRING() macro
22 returning NULL. The macro now returns a statically allocated empty
23 string instead.
24
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000025- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
26 where the right hand operand is a set of constants, by turning the set into
27 a frozenset and pre-building it as a constant. The comparison operation
28 is made against the constant instead of building a new set each time it is
29 executed (a similar optimization already existed which turned a list of
30 constants into a pre-built tuple). Patch and additional tests by Dave
31 Malcolm.
32
Antoine Pitrouf2c54842010-01-13 08:07:53 +000033- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
34 methods of bytes, bytearray and unicode objects by using a common
35 implementation based on stringlib's fast search. Patch by Florent Xicluna.
36
Mark Dickinson45b63652010-01-16 18:10:25 +000037- Issue #7632: Fix various str -> float conversion bugs present in 2.7
38 alpha 2, including: (1) a serious 'wrong output' bug that could
39 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
40 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +000041 strings corresponding to subnormal values, (3) a memory leak for
42 some values large enough to cause overflow, and (4) a number of
43 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +000044
Benjamin Petersonaea44282010-01-04 01:10:28 +000045- The __complex__ method is now looked up on the class of instances to make it
46 consistent with other special methods.
47
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +000048- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
49 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
50
Benjamin Petersond12362a2009-12-30 19:44:54 +000051- Issue #7604: Deleting an unset slotted attribute did not raise an
52 AttributeError.
53
Mark Dickinson9ab44b52009-12-30 16:22:49 +000054- Issue #7534: Fix handling of IEEE specials (infinities, nans,
55 negative zero) in ** operator. The behaviour now conforms to that
56 described in C99 Annex F.
57
Mark Dickinsoncbb62742009-12-27 15:09:50 +000058- Issue #1811: improve accuracy and cross-platform consistency for
59 true division of integers: the result of a/b is now correctly
60 rounded for ints a and b (at least on IEEE 754 platforms), and in
61 particular does not depend on the internal representation of an int.
62
Ronald Oussoren6f6c5622009-12-24 14:03:19 +000063- Issue #6834: replace the implementation for the 'python' and 'pythonw'
64 executables on OSX.
65
66 These executables now work properly with the arch(1) command:
67 ``arch -ppc python`` will start a universal binary version of python
68 in PPC mode (unlike previous releases).
69
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +000070- Issue #7466: segmentation fault when the garbage collector is called
71 in the middle of populating a tuple. Patch by Florent Xicluna.
72
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +000073- Issue #7419: setlocale() could crash the interpreter on Windows when called
74 with invalid values.
75
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +000076- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
77 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
78
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000079- Issue #7085: Fix crash when importing some extensions in a thread
80 on MacOSX 10.6.
81
Philip Jenvey1309adb2009-11-17 03:43:14 +000082- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
83
Mark Dickinson6f1d0492009-11-15 13:58:49 +000084- Issue #6970: Remove redundant calls when comparing objects that don't
85 implement the relevant rich comparison methods.
86
Mark Dickinsond550c9a2009-11-15 09:57:26 +000087- Issue #7298: fixes for range and reversed(range(...)). Iteration
88 over range(a, b, c) incorrectly gave an empty iterator when a, b and
89 c fit in C long but the length of the range did not. Also fix
90 several cases where reversed(range(a, b, c)) gave wrong results, and
91 fix a refleak for reversed(range(a, b, c)) with large arguments.
92
Raymond Hettingerfc438512009-11-01 20:55:33 +000093- Issue #7244: itertools.izip_longest() no longer ignores exceptions
94 raised during the formation of an output tuple.
95
Benjamin Petersonb2e796a2009-10-28 21:59:39 +000096- Issue #3297: On wide unicode builds, do not split unicode characters into
97 surrogates.
98
Mark Dickinsonf9724882009-10-26 21:51:18 +000099- Remove length limitation when constructing a complex number from a string.
100
Mark Dickinson27a87a22009-10-25 20:43:34 +0000101- Issue #1087418: Boost performance of bitwise operations for longs.
102
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000103- Support for AtheOS has been completely removed from the code base. It was
104 disabled since Python 3.0.
105
106- Support for several legacy threading libraries has been disabled. These
107 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
108 will be entirely removed in 3.3.
109
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000110- Peephole constant folding had missed UNARY_POSITIVE.
111
Antoine Pitrou011bd622009-10-20 21:52:47 +0000112- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
113 fixes the problem of some exceptions being thrown at shutdown when the
114 interpreter is killed. Patch by Adam Olsen.
115
Antoine Pitrou671141d2009-10-19 19:37:25 +0000116- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000117 support.
118
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000119- Issue #7120: logging: Removed import of multiprocessing which is causing
120 crash in GAE.
121
Neil Schemenauere441cb72009-10-14 19:14:38 +0000122- Issue #1754094: Improve the stack depth calculation in the compiler.
123 There should be no other effect than a small decrease in memory use.
124 Patch by Christopher Tur Lesniewski-Laas.
125
Antoine Pitrou403ce782009-10-14 17:14:16 +0000126- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000127 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000128
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000129- Issue #1571184: The Unicode database contains properties for more characters.
130 The tables for code points representing numeric values, white spaces or line
131 breaks are now generated from the official Unicode Character Database files,
132 and include information from the Unihan.txt file.
133
Mark Dickinson2683ab02009-09-29 19:21:35 +0000134- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
135 of producing internally inconsistent Python longs.
136
Philip Jenvey26713ca2009-09-29 04:57:18 +0000137- Issue #6990: Fix threading.local subclasses leaving old state around
138 after a reference cycle GC which could be recycled by new locals.
139
Benjamin Peterson4905e802009-09-27 02:43:28 +0000140- Issue #5460: Fix an ambiguity in the grammar.
141
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000142- Issue #1766304: Improve performance of membership tests on range objects.
143
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000144- Issue #6713: Improve performance of integer -> string conversions.
145
Mark Dickinson54a3db92009-09-06 10:19:23 +0000146- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
147
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000148- Issue #6750: A text file opened with io.open() could duplicate its output
149 when writing from multiple threads at the same time.
150
Benjamin Peterson14327712009-08-15 13:23:05 +0000151- Issue #6707: dir() on an uninitialized module caused a crash.
152
Georg Brandl953152f2009-07-22 12:03:59 +0000153- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
154
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000155- Issue #6573: set.union() stopped processing inputs if an instance of self
156 occurred in the argument chain.
157
R. David Murray046f7232009-07-19 02:22:05 +0000158- Issue #6070: On posix platforms import no longer copies the execute bit
159 from the .py file to the .pyc file if it is set.
160
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000161- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
162
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000163- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
164 object, and not an int. Fix the corresponding error message, and the
165 documentation.
166
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000167- The deprecated PyCObject has been removed.
168
Mark Dickinson835a6c82009-06-30 15:45:17 +0000169- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
170 This fixes a build failure on HP-UX: int32_t and uint32_t are
171 defined in inttypes.h instead of stdint.h on that platform.
172
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000173- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000174 the 'surrogateescape' error handler, a string which contains unpaired
175 surrogates.
176
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000177- Issue #4856: Remove checks for win NT.
178
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000179- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
180 argument to construct a null-initialized bytes object.
181
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000182- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
183 These methods allow the conversion of integers to bytes, and vice-versa.
184
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000185- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
186 instances from being copied with copy.copy(), and bytes subclasses
187 from being pickled properly.
188
Benjamin Peterson466a7822009-07-02 21:44:01 +0000189C-API
190-----
191
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000192- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
193 has '\0' at the end.
194
Mark Dickinsonde604012010-01-01 19:27:32 +0000195- Issue #5080: The argument parsing functions PyArg_ParseTuple,
196 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
197 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
198 DeprecationWarning for float arguments passed with the 'L' format
199 code. This will become a TypeError in a future version of Python,
200 to match the behaviour of the other integer format codes.
201
Georg Brandl1e28a272009-12-28 08:41:01 +0000202- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
203
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000204- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
205 in PyArg_ParseTupleAndKeywords.
206
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000207- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000208 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
209
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000210- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
211 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
212 should used for accessing the d_type and d_name members of structures
213 using PyDescr_COMMON.
214
215- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000216
Benjamin Peterson466a7822009-07-02 21:44:01 +0000217- The code flags for old __future__ features are now available again.
218
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000219- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
220 PyCode_Addr2Line().
221
222- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
223 object at a specified file, function, and line number.
224
225- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
226 ``const char *`` as the string is stored beyond the call.
227
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000228
Benjamin Peterson05159c42009-12-03 03:01:27 +0000229- Issue #2422: When compiled with the ``--with-valgrind`` option, the
230 pymalloc allocator will be automatically disabled when running under
231 Valgrind. This gives improved memory leak detection when running
232 under Valgrind, while taking advantage of pymalloc at other times.
233
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000234Library
235-------
236
Benjamin Petersond6326642010-01-27 02:25:58 +0000237- Issue #7792: Registering non-classes to ABCs raised an obscure error.
238
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000239- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000240
Ezio Melotti38f00332010-01-25 12:39:47 +0000241- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
242
Benjamin Peterson25001472010-01-25 03:37:42 +0000243- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
244 the release file is empty.
245
Antoine Pitrou1119a642010-01-17 12:16:23 +0000246- Issue #7561: Fix crashes when using bytearray objects with the posix
247 module.
248
R. David Murraya8f480f2010-01-16 18:30:03 +0000249- Issue #1670765: Prevent email.generator.Generator from re-wrapping
250 headers in multipart/signed MIME parts, which fixes one of the sources of
251 invalid modifications to such parts by Generator.
252
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000253- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
254 Patch by Florent Xicluna, along with some additional tests.
255
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000256- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
257 1-byte argument. Patch by Victor Stinner.
258
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000259- Issue #3299: Fix possible crash in the _sre module when given bad
260 argument values in debug mode. Patch by Victor Stinner.
261
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000262- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
263 Patch by Brian Curtin.
264
Benjamin Peterson5efea042010-01-13 03:49:50 +0000265- Issue #7681: Use floor division in appropiate places in the wave module.
266
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000267- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
268 Extension extra options may change the output without changing the .c
269 file). Initial patch by Collin Winter.
270
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000271- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
272 gcc when it has a fully qualified configuration prefix. Initial patch
273 by Arfrever.
274
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000275- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
276 the destruction of weakref'ed objects while iterating.
277
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000278- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
279 Victor Stinner.
280
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000281- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
282 properly handles EINTR within the read, readline, write & flush methods.
283 The socket.sendall() method now properly handles interrupted system calls.
284
Antoine Pitroub1f88352010-01-03 22:37:40 +0000285- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
286 and make it implement the `io.BufferedIOBase` ABC to allow for further
287 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
288
289- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000290 parameter to allow specifying where your connections come from.
291
292- socket.create_connection now accepts an optional source_address parameter.
293
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000294- Issue #5511: now zipfile.ZipFile can be used as a context manager.
295 Initial patch by Brian Curtin.
296
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000297- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
298 MSVC XML Manifest file in text mode so string patterns can be used
299 in regular expressions.
300
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000301- Issue #7552: Removed line feed in the base64 Authorization header in
302 the Distutils upload command to avoid an error when PyPI reads it.
303 This occurs on long passwords. Initial patch by JP St. Pierre.
304
Senthil Kumaran47fff872009-12-20 07:10:31 +0000305- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
306 Tatsuhiro Tsujikawa.
307
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000308- Issue #4757: `zlib.compress` and other methods in the zlib module now
309 raise a TypeError when given an `str` object (rather than a `bytes`-like
310 object). Patch by Victor Stinner and Florent Xicluna.
311
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000312- Issue #7349: Make methods of file objects in the io module accept None as an
313 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
314 the same as passing no argument.
315
Lars Gustäbel365aff32009-12-13 11:42:29 +0000316- Issue #7357: tarfile no longer suppresses fatal extraction errors by
317 default.
318
R. David Murraye8dc2582009-12-10 02:08:06 +0000319- Issue #5949: added check for correct lineends in input from IMAP server
320 in imaplib.
321
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000322- Add a reverse() method to collections.deque().
323
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000324- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
325
Antoine Pitrou781eba72009-12-08 15:57:31 +0000326- Issue #6986: Fix crash in the JSON C accelerator when called with the
327 wrong parameter types. Patch by Victor Stinner.
328
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000329- Issue #7457: added a read_pkg_file method to
330 distutils.dist.DistributionMetadata.
331
Vinay Sajip540f2152009-12-06 17:57:11 +0000332- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
333 TLS with authentication credentials.
334
Tarek Ziadédf872d42009-12-06 09:28:17 +0000335- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
336 generated in Distutils. Patch by Stephen Emslie.
337
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000338- Issue #4120: Drop reference to CRT from manifest when building extensions with
339 msvc9compiler.
340
Antoine Pitroub7572f02009-12-02 20:46:48 +0000341- Issue #7333: The `posix` module gains an `initgroups()` function providing
342 access to the initgroups(3) C library call on Unix systems which implement
343 it. Patch by Jean-Paul Calderone.
344
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000345- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
346 ownership when the group is not forced, because the group may be different
347 from the user's group and inherit from its container when the test is run.
348
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000349- Issue #4486: When an exception has an explicit cause, do not print its
350 implicit context too. This affects the `traceback` module as well as
351 built-in exception printing.
352
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000353- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
354 Robert Collins.
355
Vinay Sajip03f6c112009-11-27 14:03:36 +0000356- Issue #7403: logging: Fixed possible race condition in lock creation.
357
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000358- Issue #6845: Add restart support for binary upload in ftplib. The
359 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
360 argument. Patch by Pablo Mouzo.
361
Antoine Pitroube6859d2009-11-25 23:02:32 +0000362- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
363 method returning the total number of seconds in the duration. Patch by
364 Brian Quinlan.
365
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000366- Issue #7133: SSL objects now support the new buffer API.
367
Senthil Kumaran758025c2009-11-23 19:02:52 +0000368- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
369
Lars Gustäbel9520a432009-11-22 18:48:49 +0000370- Issue #6123: tarfile now opens empty archives correctly and consistently
371 raises ReadError on empty files.
372
Tarek Ziadé26afd482009-11-19 05:39:00 +0000373- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
374 be 2.
375
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000376- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
377 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000378
Lars Gustäbel7b465392009-11-18 20:29:25 +0000379- Issue #7341: Close the internal file object in the TarFile constructor in
380 case of an error.
381
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000382- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
383 Windows box. Help provided by David Bolen.
384
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000385- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
386 TLS or SSL. Patch by Giampaolo Rodola'.
387
Nick Coghlan106274b2009-11-15 23:04:33 +0000388- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
389
Antoine Pitroub8108e22009-11-15 14:25:16 +0000390- Issue #4969: The mimetypes module now reads the MIME database from
391 the registry under Windows. Patch by Gabriel Genellina.
392
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000393- Issue #6816: runpy now provides a run_path function that allows Python code
394 to execute file paths that refer to source or compiled Python files as well
395 as zipfiles, directories and other valid sys.path entries that contain a
396 __main__.py file. This allows applications that run other Python scripts to
397 support the same flexibility as the CPython command line itself.
398
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000399- Issue #7318: multiprocessing now uses a timeout when it fails to establish
400 a connection with another process, rather than looping endlessly. The
401 default timeout is 20 seconds, which should be amply sufficient for
402 local connections.
403
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000404- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
405 unpickled. This fixes crashes under Windows when trying to run
406 test_multiprocessing in verbose mode.
407
Antoine Pitrou434736a2009-11-10 18:46:01 +0000408- Issue #3001: Add a C implementation of recursive locks which is used by
409 default when instantiating a `threading.RLock` object. This makes
410 recursive locks as fast as regular non-recursive locks (previously,
411 they were slower by 10x to 15x).
412
Antoine Pitroub0872682009-11-09 16:08:16 +0000413- Issue #7282: Fix a memory leak when an RLock was used in a thread other
414 than those started through `threading.Thread` (for example, using
415 `_thread.start_new_thread()`).
416
Brett Cannone52c9192009-11-07 23:55:05 +0000417- Issue #7187: Importlib would not silence the IOError raised when trying to
418 write new bytecode when it was made read-only.
419
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000420- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
421 which are part of a reference cycle.
422
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000423- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
424 objects on 64-bit systems. Patch by Michael Broghton.
425
Antoine Pitrou03f13442009-11-02 11:36:51 +0000426- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
427 a modification is done through it. This fixes inconsistencies and test
428 failures on systems with slightly bogus mtime behaviour.
429
Gregory P. Smith50467882009-11-01 18:42:17 +0000430- Issue #7246 & Issue #7208: getpass now properly flushes input before
431 reading from stdin so that existing input does not confuse it and
432 lead to incorrect entry or an IOError. It also properly flushes it
433 afterwards to avoid the terminal echoing the input afterwards on
434 OSes such as Solaris.
435
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000436- Issue #7233: Fix a number of two-argument Decimal methods to make
437 sure that they accept an int or long as the second argument. Also
438 fix buggy handling of large arguments (those with coefficient longer
439 than the current precision) in shift and rotate.
440
Lars Gustäbel1440df22009-10-29 09:39:47 +0000441- Issue #4750: Store the basename of the original filename in the gzip FNAME
442 header as required by RFC 1952.
443
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000444- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
445 Distutils.
446
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000447- Issue #7218: Fix test_site for win32, the directory comparison was done with
448 an uppercase.
449
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000450- Issue #7205: Fix a possible deadlock when using a BZ2File object from
451 several threads at once.
452
Vinay Sajip42ead482009-10-21 20:22:14 +0000453- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
454
Mark Dickinson06bb6742009-10-20 13:38:04 +0000455- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
456 larger than emax.
457
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000458- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
459 platforms, and assorted locale fixes by Derk Drukker.
460
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000461- Issue #5833: Fix extra space character in readline completion with the
462 GNU readline library version 6.0.
463
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000464- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000465
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000466- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
467 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000468
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000469- Issue #7082: When falling back to the MIME 'name' parameter, the
470 correct place to look for it is the Content-Type header.
471
Benjamin Petersond3afada2009-10-09 21:43:09 +0000472- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
473 builtin tokenizer.
474
Mark Dickinson56df8872009-10-07 19:23:50 +0000475- Issue #7048: Force Decimal.logb to round its result when that result
476 is too large to fit in the current precision.
477
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000478- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000479 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000480
Thomas Heller69b639f2009-09-18 20:08:39 +0000481- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
482 does now always result in NULL.
483
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000484- Issue #5042: Structure sub-subclass does now initialize correctly
485 with base class positional arguments.
486
Eric Smith81fd8042009-09-18 13:23:13 +0000487- Issue #6882: Import uuid creates zombies processes.
488
Matthias Klosef6b76b02009-09-13 15:18:53 +0000489- Issue #6635: Fix profiler printing usage message.
490
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000491- Issue #6856: Add a filter keyword argument to TarFile.add().
492
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000493- Issue #6888: pdb's alias command was broken when no arguments were given.
494
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000495- Issue #6857: Default format() alignment should be '>' for Decimal
496 instances.
497
Mark Dickinson825fce32009-09-07 18:08:12 +0000498- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
499 returning NaN or raising InvalidContext. Also, fix infinite recursion
500 in long(Decimal('nan')).
501
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000502- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
503 with no type specifier.
504
Thomas Heller8b939522009-09-04 18:24:41 +0000505- Issue #6239: ctypes.c_char_p return value must return bytes.
506
Chris Withers9c33cbf2009-09-04 17:04:16 +0000507- Issue #6838: Use a list to accumulate the value instead of
508 repeatedly concatenating strings in http.client's
509 HTTPResponse._read_chunked providing a significant speed increase
510 when downloading large files servend with a Transfer-Encoding of 'chunked'.
511
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000512- Trying to import a submodule from a module that is not a package, ImportError
513 should be raised, not AttributeError.
514
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000515- When the globals past to importlib.__import__() has __package__ set to None,
516 fall back to computing what __package__ should be instead of giving up.
517
Brett Cannon6afbaef2009-08-30 19:08:58 +0000518- Raise a TypeError when the name of a module to be imported for
519 importlib.__import__ is not a string (was raising an
520 AttributeError before).
521
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000522- Allow the fromlist passed into importlib.__import__ to be any iterable.
523
Brett Cannon4d75fc12009-08-30 03:47:36 +0000524- Have importlib raise ImportError if None is found in sys.modules.
525
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000526- Issue #6054: Do not normalize stored pathnames in tarfile.
527
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000528- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
529 payloads are now ordered by integer value rather than lexicographically.
530
Guilherme Polobcd03df2009-08-18 15:35:57 +0000531- Issue #1356969: Add missing info methods in tix.HList.
532
533- Issue #1522587: New constants and methods for the tix.Grid widget.
534
535- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
536
537- Issue #1119673: Do not override tkinter.Text methods when creating a
538 ScrolledText.
539
Gregory P. Smith01099702009-08-16 18:58:46 +0000540- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
541
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000542- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
543 the xview* and yview* methods.
544
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000545- Issue #6629: Fix a data corruption issue in the new I/O library, which could
546 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
547 "wb+" mode) after having buffered a certain amount of data for reading. This
548 bug was not present in the pure Python implementation.
549
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000550- Issue #6622: Fix "local variable 'secret' referenced before
551 assignment" bug in POP3.apop.
552
Mark Dickinson45f799f2009-08-02 20:08:54 +0000553- Issue #2715: Remove remnants of Carbon.File from binhex module.
554
Mark Dickinson345adc42009-08-02 10:14:23 +0000555- Issue #6595: The Decimal constructor now allows arbitrary Unicode
556 decimal digits in input, as recommended by the standard. Previously
557 it was restricted to accepting [0-9].
558
Jack Diederich36596a32009-07-26 22:23:04 +0000559- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
560 DO/DONT correctly.
561
Senthil Kumaran67305382009-07-26 04:46:00 +0000562- Issue #1424152: Fix for http.client, urllib.request to support SSL while
563 working through proxy. Original patch by Christopher Li, changes made by
564 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000565
Brett Cannon69194272009-07-20 04:23:48 +0000566- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
567 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
568 and PyPycLoader inherit from this class and provide implementations in
569 relation to other methods required by the ABCs.
570
Brett Cannon64ef00f2009-07-20 03:19:18 +0000571- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
572 the documentation said it did even though the code in PyLoader relied on the
573 abstract method required by ResourceLoader.
574
Mark Dickinson85424c92009-07-18 14:41:42 +0000575- Issue #6431: Make Fraction type return NotImplemented when it doesn't
576 know how to handle a comparison without loss of precision. Also add
577 correct handling of infinities and nans for comparisons with float.
578
Antoine Pitrouf3637322009-08-06 21:00:37 +0000579- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000580
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000581- Issue #6358: The exit status of a command started with os.popen() was
582 reported differently than it did with python 2.x.
583
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000584- Issue #6323: The pdb debugger did not exit when running a script with a
585 syntax error.
586
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000587- Issue #3392: The subprocess communicate() method no longer fails in select()
588 when file descriptors are large; communicate() now uses poll() when possible.
589
Antoine Pitrou54923952009-07-01 14:53:06 +0000590- Issue #6369: Fix an RLE decompression bug in the binhex module.
591
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000592- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
593
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000594- The deprecated function string.maketrans has been removed.
595
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000596- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
597 sys.path.
598
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000599- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
600
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000601Extension Modules
602-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000603
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000604- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
605
Mark Dickinson40714af2009-10-08 15:59:20 +0000606- Issue #7078: Set struct.__doc__ from _struct.__doc__.
607
Mark Dickinson45f992a2009-12-19 11:20:49 +0000608- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000609
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000610- Issue #6877: It is now possible to link the readline extension to the
611 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000612
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000613- Issue #6848: Fix curses module build failure on OS X 10.6.
614
Brett Cannon2f827382009-08-13 19:58:01 +0000615- Fix a segfault that could be triggered by expat with specially formed input.
616
Mark Dickinson1f268282009-07-28 17:22:36 +0000617- Issue #6561: '\d' in a regex now matches only characters with
618 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
619 matched characters with category 'No'.
620
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000621- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000622 failing due to the resize restriction in-place when the object has exported
623 buffers.
624
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000625- Issue #2389: Array objects are now pickled in a portable manner.
626
Matthias Klosea50ffe52010-01-22 01:10:19 +0000627- Expat: Fix DoS via XML document with malformed UTF-8 sequences
628 (CVE_2009_3560).
629
Martin v. Löwis95c46012009-06-28 09:36:14 +0000630Build
631-----
632
Mark Dickinsonde508002010-01-17 21:02:55 +0000633- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
634 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
635 PyMem_Free instead. Also disable caching of powers of 5.
636
Benjamin Petersond78735d2010-01-01 16:04:23 +0000637- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
638
639- Issue #6943: Use pkg-config to find the libffi headers when the
640 --with-system-ffi flag is used.
641
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000642- Issue #7609: Add a --with-system-expat option that causes the system's expat
643 library to be used for the pyexpat module instead of the one included with
644 Python.
645
Benjamin Petersone57d6762009-12-30 03:02:03 +0000646- Issue #7589: Only build the nis module when the correct header files are
647 found.
648
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000649- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000650
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000651- Issue #5792: Extend the short float repr support to x86 systems using
652 icc or suncc.
653
Mark Dickinsona25b1312009-10-31 10:18:44 +0000654- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
655 compiles correctly under gcc on x86-64. This fixes a reported
656 problem with the --with-tsc build on x86-64.
657
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000658- Issue #6802: Fix build issues on MacOSX 10.6
659
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000660- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
661
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000662- Issue 4601: 'make install' did not set the appropriate permissions on
663 directories.
664
Martin v. Löwis95c46012009-06-28 09:36:14 +0000665- Issue 5390: Add uninstall icon independent of whether file
666 extensions are installed.
667
Ronald Oussoren585c1732009-12-24 14:21:55 +0000668- Issue #7541: when using ``python-config`` with a framework install the compiler might
669 use the wrong library.
670
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000671Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000672------------
673
Brett Cannon757df6e2009-08-30 04:00:12 +0000674- Document that importing a module that has None in sys.modules triggers an
675 ImportError.
676
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000677- Issue #6556: Fixed the Distutils configuration files location explanation
678 for Windows.
679
Brett Cannonb49c70c2009-07-15 04:08:33 +0000680Tests
681-----
682
R. David Murray445448c2009-12-20 17:28:31 +0000683- Issue #7376: instead of running a self-test (which was failing) when called
684 with no arguments, doctest.py now gives a usage message.
685
R. David Murrayef1992b2009-12-16 15:19:27 +0000686- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
687
R. David Murray596da442009-12-14 23:06:11 +0000688- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000689 instead of a hardcoded port number in test_rapid_restart.
690
R. David Murrayba311052009-12-04 00:09:14 +0000691- Issue #7431: use TESTFN in test_linecache instead of trying to create a
692 file in the Lib/test directory, which might be read-only for the
693 user running the tests.
694
R. David Murray35768ad2009-11-15 00:23:21 +0000695- Issue #7324: add a sanity check to regrtest argument parsing to
696 catch the case of an option with no handler.
697
R. David Murray7dc72cc2009-11-14 16:13:02 +0000698- Issue #7312: Add a -F flag to run the selected tests in a loop until
699 a test fails. Can be combined with -j.
700
Antoine Pitrou060cee22009-11-13 16:29:04 +0000701- Issue #6551: test_zipimport could import and then destroy some modules of
702 the encodings package, which would make other tests fail further down
703 the road because the internally cached encoders and decoders would point
704 to empty global variables.
705
Antoine Pitrou941ee882009-11-11 20:59:38 +0000706- Issue #7295: Do not use a hardcoded file name in test_tarfile.
707
Antoine Pitrou557934f2009-11-06 22:41:14 +0000708- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
709 primitives such as Lock, RLock, Condition, Event and Semaphore.
710
Brett Cannoncfed0292009-11-05 01:26:57 +0000711- Issue #7248 (part 2): Use a unique temporary directory for importlib source
712 tests instead of tempfile.tempdir. This prevents the tests from sharing state
713 between concurrent executions on the same system.
714
Brett Cannon0ae45112009-11-05 01:17:22 +0000715- Issue #7248: In importlib.test.source.util a try/finally block did not make
716 sure that some referenced objects actually were created in the block before
717 calling methods on the object.
718
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000719- Issue #7222: Make thread "reaping" more reliable so that reference
720 leak-chasing test runs give sensible results. The previous method of
721 reaping threads could return successfully while some Thread objects were
722 still referenced. This also introduces a new private function:
723 :func:`_thread._count()`.
724
R. David Murray27144602009-10-19 15:26:16 +0000725- Issue #7151: fixed regrtest -j so that output to stderr from a test no
726 longer runs the risk of causing the worker thread to fail.
727
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000728- Issue #7055: test___all__ now greedily detects all modules which have an
729 __all__ attribute, rather than using a hardcoded and incomplete list.
730
R. David Murray0bc11ae2009-10-18 22:18:17 +0000731- Issue #7058: Added save/restore for things like sys.argv and cwd to
732 runtest_inner in regrtest, with warnings if the called test modifies them,
733 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000734
Mark Dickinson2e304402009-10-04 18:43:54 +0000735- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
736
Brett Cannon3c273842009-07-20 00:14:29 +0000737- Fixed tests in importlib.test.source.test_abc_loader that were masking
738 the proper exceptions that should be raised for missing or improper code
739 object bytecode.
740
Brett Cannonb49c70c2009-07-15 04:08:33 +0000741- Removed importlib's custom test discovery code and switched to
742 unittest.TestLoader.discover().
743
Antoine Pitroua69ba652010-01-18 21:20:53 +0000744Tools/Demos
745-----------
746
747- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
748 added to the `Tools/` directory. They were previously living in the
749 sandbox.
750
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000751
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000752What's New in Python 3.1?
753=========================
754
755*Release date: 27-June-2009*
756
757Core and Builtins
758-----------------
759
Mark Dickinsonad195562009-06-24 19:01:32 +0000760- Issue #6334: Fix bug in range length calculation for ranges with
761 large arguments.
762
Raymond Hettinger159eac92009-06-23 20:38:54 +0000763- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
764 because it wasn't recognized as a sequence).
765
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000766Library
767-------
768
Georg Brandld07ac642009-08-13 07:50:57 +0000769- Issue #6126: Fixed pdb command-line usage.
770
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000771- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000772
Facundo Batista10706e22009-06-19 20:34:30 +0000773- Issue #6274: Fixed possible file descriptors leak in subprocess.py
774
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000775- Accessing io.StringIO.buffer now raises an AttributeError instead of
776 io.UnsupportedOperation.
777
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000778- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000779 (On Unix)
780
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000781- Issue #1202: zipfile module would cause a struct.error when attempting to
782 store files with a CRC32 > 2**31-1.
783
Matthias Kloseab2b7552009-06-22 13:05:52 +0000784Extension Modules
785-----------------
786
787- Issue #5590: Remove unused global variable in pyexpat extension.
788
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000789
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000790What's New in Python 3.1 Release Candidate 2?
791=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000792
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000793*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000794
795Core and Builtins
796-----------------
797
Raymond Hettinger94f55832009-06-12 18:40:16 +0000798- Fixed SystemError triggered by "range([], 1, -1)".
799
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000800- Issue #5924: On Windows, a large PYTHONPATH environment variable
801 (more than 255 characters) would be completely ignored.
802
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000803- Issue #4547: When debugging a very large function, it was not always
804 possible to update the lineno attribute of the current frame.
805
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000806- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000807 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000808
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000809Library
810-------
811
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000812- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000813 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000814 Popen. Tested under win32 to build the py-postgresql project.
815
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000816- Issue #6258: Support AMD64 in bdist_msi.
817
R. David Murray58641de2009-06-12 15:33:19 +0000818- Issue #6195: fixed doctest to no longer try to read 'source' data from
819 binary files.
820
Vinay Sajipaffbd872009-06-11 10:11:47 +0000821- Issue #5262: Fixed bug in next rollover time computation in
822 TimedRotatingFileHandler.
823
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000824- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
825 errors property. Additionally, the errors and encoding properties of StringIO
826 are always None now.
827
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000828- Issue #6137: The pickle module now translates module names when loading
829 or dumping pickles with a 2.x-compatible protocol, in order to make data
830 sharing and migration easier. This behaviour can be disabled using the
831 new `fix_imports` optional argument.
832
Raymond Hettinger40925d22009-06-04 18:32:39 +0000833- Removed the ipaddr module.
834
Georg Brandlb54d8012009-06-04 09:11:51 +0000835- Issue #3613: base64.{encode,decode}string are now called
836 base64.{encode,decode}bytes which reflects what type they accept and return.
837 The old names are still there as deprecated aliases.
838
Georg Brandl317185a2009-06-04 09:00:56 +0000839- Issue #5767: Remove sgmlop support from xmlrpc.client.
840
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000841- Issue #6150: Fix test_unicode on wide-unicode builds.
842
Antoine Pitrouc06de472009-05-30 21:04:26 +0000843- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
844 parameters.
845
Martin v. Löwis79b13872009-06-01 04:13:14 +0000846Windows
847-------
848
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000849- Issue #6221: Delete test registry key before running the test.
850
Martin v. Löwis79b13872009-06-01 04:13:14 +0000851- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
852
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000853C-API
854-----
855
856- Issue #5735: Python compiled with --with-pydebug should throw an
857 ImportError when trying to import modules compiled without
858 --with-pydebug, and vice-versa.
859
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000860
Brett Cannonc6d936e2009-06-07 20:09:53 +0000861Build
862-----
863
864- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
865 added LIBS to OS X framework builds.
866
Ronald Oussoren99aab652009-06-08 21:22:57 +0000867- Issue #5809: Specifying both --enable-framework and --enable-shared is
868 an error. Configure now explicity tells you about this.
869
870
Brett Cannonc6d936e2009-06-07 20:09:53 +0000871
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000872What's New in Python 3.1 release candidate 1?
873=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000874
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000875*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000876
877Core and Builtins
878-----------------
879
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000880- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
881 of the command line.
882
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000883- Issue #6012: Add cleanup support to O& argument parsing.
884
Eric Smith41669ca2009-05-23 14:23:22 +0000885- Issue #6089: Fixed str.format with certain invalid field specifiers
886 that would raise SystemError.
887
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000888- Issue #5982: staticmethod and classmethod now expose the wrapped
889 function with __func__.
890
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000891- Added support for multiple context managers in the same with-statement.
892 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000893
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000894- Issue #5829: complex("1e500") no longer raises OverflowError. This
895 makes it consistent with float("1e500") and interpretation of real
896 and imaginary literals.
897
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000898- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
899
R. David Murraydd226ea2009-05-13 12:27:21 +0000900- Issue #5994: the marshal module now has docstrings.
901
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000902- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
903 (1) inf and nan strings with trailing whitespace were incorrectly
904 rejected; (2) parsing of strings representing infinities and nans
905 was locale aware; and (3) the interpretation of fromhex('-nan')
906 didn't match that of float('-nan').
907
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000908Library
909-------
910
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000911- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
912
R. David Murrayfb123912009-05-28 18:19:00 +0000913- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
914
R. David Murray1f1b9d32009-05-27 20:56:59 +0000915- Issue #6121: pydoc now ignores leading and trailing spaces in the
916 argument to the 'help' function.
917
Georg Brandlfaf41492009-05-26 18:31:11 +0000918- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
919 arguments for strings with a space in them.
920
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000921- collections.namedtuple() was not working with the following field
922 names: cls, self, tuple, itemgetter, and property.
923
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000924- In unittest, using a skipping decorator on a class is now equivalent to
925 skipping every test on the class. The ClassTestSuite class has been removed.
926
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000927- Issue #6050: Don't fail extracting a directory from a zipfile if
928 the directory already exists.
929
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000930- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
931 than an int, which makes some operations possible under 64-bit Linux (e.g.
932 DN_MULTISHOT with F_NOTIFY).
933
Antoine Pitrou716c4442009-05-23 19:04:03 +0000934- Issue #5761: Add the name of the underlying file to the repr() of various
935 IO objects.
936
R. David Murraycaa27b72009-05-23 18:49:56 +0000937- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
938 by Musashi Tamura, tests by Marcin Bachry.
939
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000940- Issue #1983: Fix functions taking or returning a process identifier to use
941 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
942 a process identifier type wider than the standard C integer type.
943
R. David Murray87e20742009-05-23 01:30:26 +0000944- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
945 Patch by Farhan Ahmad, test by Marcin Bachry.
946
Antoine Pitrou6e610062009-05-15 17:04:50 +0000947- Issue #2116: Weak references and weak dictionaries now support copy()ing and
948 deepcopy()ing.
949
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000950- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
951
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000952- Issue #5918: Fix a crash in the parser module.
953
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000954- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
955
Antoine Pitroue4501852009-05-14 18:55:55 +0000956- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
957 library. This means, for example, that opening an UTF-16 text file in
958 append mode doesn't add a BOM at the end of the file if the file isn't
959 empty.
960
R. David Murray74b89242009-05-13 17:33:03 +0000961- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
962 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
963 corrects a pydoc regression.
964
R. David Murray99352742009-05-07 18:24:38 +0000965- Issue 5955: aifc's close method did not close the file it wrapped,
966 now it does. This also means getfp method now returns the real fp.
967
Benjamin Peterson932073a2009-05-23 16:14:33 +0000968Installation
969------------
970
971- Issue #6047: fullinstall has been removed because Python 3's executable will
972 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000973
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000974- Lib/smtpd.py is no longer installed as a script.
975
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000976Extension Modules
977-----------------
978
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000979- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000980
Martin v. Löwise23c8682009-05-29 16:01:34 +0000981- Issue #4873: Fix resource leaks in error cases of pwd and grp.
982
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000983- Issue #6093: Fix off-by-one error in locale.strxfrm.
984
Benjamin Peterson744af442009-05-23 18:51:49 +0000985- The _functools and _locale modules are now built into the libpython shared
986 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000987
Antoine Pitrou20327222009-05-24 20:39:11 +0000988Build
989-----
990
991- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
992 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
993 Clinton Roy.
994
Brett Cannon1262e7c2009-05-11 01:47:11 +0000995Tests
996-----
997
998- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
999 tests on darwin even when the OS was installed on a case-sensitive
1000 filesystem. Also fixed tests that should not be run when
1001 sys.dont_write_bytecode is true.
1002
1003
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001004What's New in Python 3.1 beta 1?
1005================================
1006
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001007*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001008
1009Core and Builtins
1010-----------------
1011
Mark Dickinson865e01a2009-05-07 16:37:01 +00001012- Issue #5914: Add new C API function PyOS_string_to_double, and
1013 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1014
Eric Smith741191f2009-05-06 13:08:15 +00001015- Issue #3382: float.__format__, complex.__format__, and %-formatting
1016 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1017 affects nan -> NAN and inf -> INF.
1018
Mark Hammond5a607a32009-05-06 08:04:54 +00001019- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1020 in all operations, including splitdrive, split, etc. splitunc() now issues
1021 a PendingDeprecation warning.
1022
Eric Smith63376222009-05-05 14:04:18 +00001023- Issue #5920: For float.__format__, change the behavior with the
1024 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1025 to be like 'g' but with at least one decimal point and with a
1026 default precision of 12. Previously, the behavior the same but with
1027 a default precision of 6. This more closely matches str(), and
1028 reduces surprises when adding alignment flags to the empty
1029 presentation type. This also affects the new complex.__format__ in
1030 the same way.
1031
Martin v. Löwis011e8422009-05-05 04:43:17 +00001032- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1033
R. David Murrayb18500d2009-05-04 22:59:07 +00001034- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1035 shadowed by classtype's, even if it was None. property now
1036 inserts the __doc__ into the subclass instance __dict__.
1037
Antoine Pitrou244651a2009-05-04 18:56:13 +00001038- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1039 sequences. Patch by Nick Barnes and Victor Stinner.
1040
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001041- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001042
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001043- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1044 received a new method, detach(). detach() disconnects the underlying stream
1045 from the buffer or text IO and returns it.
1046
Mark Dickinson33841c32009-05-01 15:37:04 +00001047- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1048 floats with absolute value over 1e50. Also remove length
1049 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1050 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001051
Eric Smith741191f2009-05-06 13:08:15 +00001052- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001053 format(complex(1, 2./3), '.5') now produces a sensible result.
1054
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001055- Issue #5864: Fix empty format code formatting for floats so that it
1056 never gives more than the requested number of significant digits.
1057
Eric Smith6dc46f52009-04-27 20:39:49 +00001058- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1059 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1060
Eric Smithcc32a112009-04-26 21:35:14 +00001061- Issue #5835: Deprecate PyOS_ascii_formatd.
1062
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001063- Issue #4971: Fix titlecase for characters that are their own
1064 titlecase, but not their own uppercase.
1065
Benjamin Peterson193152c2009-04-25 01:08:45 +00001066- Issue #5283: Setting __class__ in __del__ caused a segfault.
1067
Mark Dickinsonad476da2009-04-23 19:14:16 +00001068- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1069 z involves nans, infs or negative zeros.
1070
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001071- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001072
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001073- Issue #1869 (and many duplicates): make round(x, n) correctly
1074 rounded for a float x, by using the decimal <-> binary conversions
1075 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1076 consistently agrees with format(x, '.2f').
1077
Benjamin Petersonae937c02009-04-18 20:54:08 +00001078- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1079 some builtin types.
1080
Eric Smith0923d1d2009-04-16 20:16:10 +00001081- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1082
Eric Smith35e84722009-04-16 20:21:28 +00001083- Issue #5515: str.format() type 'n' combined with commas and leading
1084 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001085
1086- Implement PEP 378, Format Specifier for Thousands Separator, for
1087 floats.
1088
Mark Dickinson3370cce2009-04-17 22:40:53 +00001089- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001090 1e11, not 1e12. This avoids printing 13 significant digits in
1091 situations where only 12 of them are correct. Example problem
1092 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1093 long time.)
1094
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001095- Issue #1580: On most platforms, use a 'short' float repr: for a
1096 finite float x, repr(x) now outputs a string based on the shortest
1097 sequence of decimal digits that rounds to x. Previous behaviour was
1098 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001099 Another minor difference is that the new repr switches to
1100 exponential notation at 1e16 instead of the previous 1e17; this
1101 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001102
1103 There's a new sys attribute sys.float_repr_style, which takes
1104 the value 'short' to indicate that we're using short float repr,
1105 and 'legacy' if the short float repr isn't available for one
1106 reason or another.
1107
1108 The float repr change involves incorporating David Gay's 'perfect
1109 rounding' code into the Python core (it's in Python/dtoa.c). As a
1110 secondary consequence, all string-to-float and float-to-string
1111 conversions (including all float formatting operations) will be
1112 correctly rounded on these platforms.
1113
1114 See issue 1580 discussions for details of platforms for which
1115 this change does not apply.
1116
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001117- Issue #5759: float() didn't call __float__ on str subclasses.
1118
Georg Brandlabc38772009-04-12 15:51:51 +00001119- The string.maketrans() function is deprecated; there is a new static method
1120 maketrans() on the bytes and bytearray classes. This removes confusion about
1121 the types string.maketrans() is supposed to work with, and mirrors the
1122 methods available on the str class.
1123
R. David Murraydc6da8a2009-04-09 22:16:43 +00001124- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1125 its clarity and its speed.
1126
Matthias Klose091c7b12009-04-07 13:24:27 +00001127- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1128 to avoid compiler warnings.
1129
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001130- Issue #3739: The unicode-internal encoder now reports the number of characters
1131 consumed like any other encoder (instead of the number of bytes).
1132
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001133Installation
1134------------
1135
1136- Issue #5756: Install idle and pydoc with a 3 suffix.
1137
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001138Library
1139-------
1140
Martin v. Löwis403117a2009-05-24 19:19:17 +00001141- Issue #5311: bdist_msi can now build packages that do not depend on a
1142 specific Python version.
1143
Raymond Hettingereb816952009-05-29 01:22:18 +00001144- Issue #5150: IDLE's format menu now has an option to strip trailing
1145 whitespace.
1146
Vinay Sajipaffbd872009-06-11 10:11:47 +00001147- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001148 the right type checkings anymore.
1149
Thomas Heller00cfc372009-05-05 19:04:40 +00001150- Issue #4875: On win32, ctypes.util.find_library does no longer
1151 return directories.
1152
Georg Brandl243ad662009-05-05 09:00:19 +00001153- Issue #5142: Add the ability to skip modules while stepping to pdb.
1154
Georg Brandl991f9202009-05-05 08:31:54 +00001155- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1156 looking for files given by a relative filename.
1157
Georg Brandleaa84ef2009-05-05 08:14:33 +00001158- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1159 turtle demos in Demo/turtle.
1160
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001161- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1162 extracting a file to the root directory.
1163
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001164- Issue #5913: os.listdir() should fail for empty path on windows.
1165
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001166- Issue #5084: unpickling now interns the attribute names of pickled objects,
1167 saving memory and avoiding growth in size of subsequent pickles. Proposal
1168 and original patch by Jake McGuire.
1169
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001170- The json module now works exclusively with str and not bytes.
1171
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001172- Issue #3959: The ipaddr module has been added to the standard library.
1173 Contributed by Google.
1174
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001175- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1176 error when a named pipe is encountered, rather than blocking infinitely.
1177
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001178- Issue #5857: tokenize.tokenize() now returns named tuples.
1179
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001180- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1181
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001182- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1183 string is already in normalized form, by performing a quick check beforehand.
1184 Original patch by Rauli Ruohonen.
1185
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001186- Issue #5853: calling a function of the mimetypes module from several threads
1187 at once could hit the recursion limit if the mimetypes database hadn't been
1188 initialized before.
1189
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001190- Issue #5854: Updated __all__ to include some missing names and remove some
1191 names which should not be exported.
1192
Thomas Heller34596a92009-04-24 20:50:00 +00001193- Issue #3102: All global symbols that the _ctypes extension defines
1194 are now prefixed with 'Py' or '_ctypes'.
1195
1196- Issue #5041: ctypes does now allow pickling wide character.
1197
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001198- Issue #5812: For the two-argument form of the Fraction constructor,
1199 Fraction(m, n), m and n are permitted to be arbitrary Rational
1200 instances.
1201
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001202- Issue #5812: Fraction('1e6') is valid: more generally, any string
1203 that's valid for float() is now valid for Fraction(), with the
1204 exception of strings representing NaNs and infinities.
1205
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001206- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1207 bugs. Patch by Brian Quinlan.
1208
R. David Murray9e94ddf2009-04-13 17:06:33 +00001209- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1210 results in a handle_expt_event call, not handle_read_event, and POLLERR
1211 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1212 dispatcher now has an 'ignore_log_types' attribute for suppressing
1213 log messages, which is set to 'warning' by default.
1214
Matthias Klosea3d29e82009-04-07 13:13:10 +00001215- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1216 new arguments introduced in 2.5.
1217
Walter Dörwald1b08b302009-04-25 14:13:56 +00001218- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1219 makeunicodedata.py and regenerated the Unicode database (This fixes
1220 u'\u1d79'.lower() == '\x00').
1221
Matthias Klose535336f2009-04-07 13:49:45 +00001222Extension Modules
1223-----------------
1224
Benjamin Petersone04b6272009-05-04 22:25:21 +00001225- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1226 pwd.
1227
Mark Dickinsonea835e72009-04-19 20:40:33 +00001228- Issue #5463: In struct module, remove deprecated float coercion
1229 for integer type codes: struct.pack('L', 0.3) should now raise
1230 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1231 The version number has been bumped to 0.3.
1232
Matthias Klose535336f2009-04-07 13:49:45 +00001233- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1234 using Berkley-DB.
1235
Nick Coghlan47384702009-04-22 16:13:36 +00001236Tests
1237-----
1238
1239- Issue #5354: New test support function import_fresh_module() makes
1240 it easy to import both normal and optimised versions of modules.
1241 test_heapq and test_warnings have been adjusted to use it, tests for
1242 other modules with both C and Python implementations in the stdlib
1243 can be adjusted to use it over time.
1244
Walter Dörwald4ba80132009-04-25 12:48:43 +00001245- Issue #5837: Certain sequences of calls to set() and unset() for
1246 support.EnvironmentVarGuard objects restored the environment variables
1247 incorrectly on __exit__.
1248
Benjamin Petersonb173f782009-05-05 22:31:58 +00001249C-API
1250-----
1251
1252- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1253
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001254
Benjamin Petersond1735892009-03-07 18:46:21 +00001255What's New in Python 3.1 alpha 2?
1256=================================
1257
Benjamin Peterson88f14352009-04-04 21:06:52 +00001258*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001259
1260Core and Builtins
1261-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001262
Eric Smith1e1d7d22009-04-03 22:25:33 +00001263- Implement PEP 378, Format Specifier for Thousands Separator, for
1264 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001265
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001266- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1267
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001268- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1269 byte, and the 'C' code only accepts a unicode character.
1270
Georg Brandl406b3d82009-04-11 21:24:37 +00001271- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1272 when hitting the recursion limit under certain circumstances.
1273
Brett Cannon0759dd62009-04-01 18:13:07 +00001274- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1275
Georg Brandlab6f2f62009-03-31 04:16:10 +00001276- Fix a segfault when running test_exceptions with coverage, caused by
1277 insufficient checks in accessors of Exception.__context__.
1278
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001279- Issue #5604: non-ASCII characters in module name passed to
1280 imp.find_module() were converted to UTF-8 while the path is
1281 converted to the default filesystem encoding, causing nonsense.
1282
Benjamin Peterson09832742009-03-26 17:15:46 +00001283- Issue #5126: str.isprintable() returned False for space characters.
1284
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001285- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1286 the end sys.path, for compatibility with the system install of Python.
1287
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001288- Issue #4688: Add a heuristic so that tuples and dicts containing only
1289 untrackable objects are not tracked by the garbage collector. This can
1290 reduce the size of collections and therefore the garbage collection overhead
1291 on long-running programs, depending on their particular use of datatypes.
1292
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001293- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1294 improve its performance. Long divisions and remainder operations
1295 are now between 50% and 150% faster.
1296
Mark Dickinsonbd792642009-03-18 20:06:12 +00001297- Issue #4258: Make it possible to use base 2**30 instead of base
1298 2**15 for the internal representation of integers, for performance
1299 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1300 --enable-big-digits option to configure, which overrides the
1301 default. Add sys.int_info structseq to provide information about
1302 the internal format.
1303
Mark Dickinson081dfee2009-03-18 14:47:41 +00001304- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1305 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1306 and sizeof(Py_UNICODE) == 2.
1307
Eric Smith8ec90442009-03-14 12:29:34 +00001308- Issue #5237: Allow auto-numbered fields in str.format(). For
1309 example: '{} {}'.format(1, 2) == '1 2'.
1310
Antoine Pitrou652e7072009-03-13 19:25:20 +00001311- Issue #5392: when a very low recursion limit was set, the interpreter would
1312 abort with a fatal error after the recursion limit was hit twice.
1313
Matthias Klose042f1332009-04-04 14:32:42 +00001314- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1315 short file names.
1316
Benjamin Petersond1735892009-03-07 18:46:21 +00001317Library
1318-------
1319
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001320- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001321 mailbox.MH.get_message().
1322
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001323- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1324 error substitutions from non-strict codec error callbacks in
1325 incrementalencoder and StreamWriter.
1326
Georg Brandl33c28812009-04-01 23:07:29 +00001327- Issue #5656: Fix the coverage reporting when running the test suite with
1328 the -T argument.
1329
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001330- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1331
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001332- Issue #5624: Fix the _winreg module name still used in several modules.
1333
Benjamin Petersona1b49012009-03-31 23:11:32 +00001334- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1335
Jesse Nollera9314042009-03-31 22:36:44 +00001336- Issue #5619: Multiprocessing children disobey the debug flag and causes
1337 popups on windows buildbots. Patch applied to work around this issue.
1338
Jesse Noller32d68c22009-03-31 18:48:42 +00001339- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1340
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001341- Issue #5387: Fixed mmap.move crash by integer overflow.
1342
Jesse Nollerf8d00852009-03-31 03:25:07 +00001343- Issue #5261: Patch multiprocessing's semaphore.c to support context
1344 manager use: "with multiprocessing.Lock()" works now.
1345
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001346- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1347 bytes already but the failure was non-obvious.
1348
Jesse Noller7af4ef82009-03-30 16:47:15 +00001349- Issue #5177: Multiprocessing's SocketListener class now uses
1350 socket.SO_REUSEADDR on all connections so that the user no longer needs
1351 to wait 120 seconds for the socket to expire.
1352
Benjamin Peterson48e24782009-03-29 13:02:52 +00001353- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1354
Antoine Pitrou66994e12009-03-29 00:45:26 +00001355- Issue #1174606: Calling read() without arguments of an unbounded file
1356 (typically /dev/zero under Unix) could crash the interpreter.
1357
Benjamin Peterson59406a92009-03-26 17:10:29 +00001358- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1359 io.BufferedRandom have been deprecated for removal in Python 3.2.
1360
Lars Gustäbel42e00912009-03-22 20:34:29 +00001361- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1362 forever on incomplete input. That caused tarfile.open() to hang when used
1363 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1364 partial bzip2 compressed data.
1365
Mark Dickinson79f52032009-03-17 23:12:51 +00001366- Issue #2110: Add support for thousands separator and 'n' type
1367 specifier to Decimal.__format__
1368
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001369- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1370 '>' alignment characters.
1371
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001372- The error detection code in FileIO.close() could fail to reflect the `errno`
1373 value, and report it as -1 instead.
1374
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001375- Issue #5016: FileIO.seekable() could return False if the file position
1376 was negative when truncated to a C int. Patch by Victor Stinner.
1377
Mark Dickinsonae681df2009-03-21 10:26:31 +00001378Extension Modules
1379-----------------
1380
Benjamin Petersone099b372009-04-04 17:09:35 +00001381- Issue #5391: mmap now deals exclusively with bytes.
1382
Mark Dickinsonae681df2009-03-21 10:26:31 +00001383- Issue #5463: In struct module, remove deprecated overflow wrapping
1384 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001385 struct.error instead of returning b'\xff\xff\xff\xff'. The
1386 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1387 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001388
Benjamin Petersond1735892009-03-07 18:46:21 +00001389
Benjamin Petersona58a6262009-03-07 16:34:40 +00001390What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001391================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001392
Benjamin Petersona58a6262009-03-07 16:34:40 +00001393*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001394
1395Core and Builtins
1396-----------------
1397
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001398- The io module has been reimplemented in C for speed.
1399
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001400- Give dict views an informative __repr__.
1401
Eric Smith5e5c0db2009-02-20 14:25:03 +00001402- Issue #5247: Improve error message when unknown format codes are
1403 used when using str.format() with str, int, and float arguments.
1404
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001405- Issue #5249: time.strftime returned malformed string when format string
1406 contained non ascii character on windows.
1407
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001408- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1409 source has already been decoded into str.
1410
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001411- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1412 rotating the object pointer by 4 bits to the right.
1413
Mark Dickinson87ec0852009-02-09 17:15:59 +00001414- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1415 it now forces its argument to double before testing for infinity.
1416
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001417- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1418 returns a non-number type.
1419
Benjamin Peterson87618552009-02-08 15:00:52 +00001420- Issue #5182: Removed memoryview.__str__.
1421
Mark Dickinsonc008a172009-02-01 13:59:22 +00001422- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1423 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001424 the type definition cmpfunc. The tp_compare slot has been renamed
1425 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001426
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001427- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001428 were suppressing all exceptions. These include list() and bytearray().
1429
Mark Dickinson1124e712009-01-28 21:25:58 +00001430- Issue #4707: round(x, n) now returns an integer if x is an integer.
1431 Previously it returned a float.
1432
Antoine Pitroub52ec782009-01-25 16:34:23 +00001433- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1434 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1435 evaluation loop is compiled with a new dispatch mechanism which gives
1436 speedups of up to 20%, depending on the system, on various benchmarks.
1437
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001438- Issue #4874: Most builtin decoders now reject unicode input.
1439
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001440- Issue #4842: Don't allow trailing 'L' when constructing an integer
1441 from a string.
1442
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001443- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1444
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001445- Issue #4838: When a module is deallocated, free the memory backing the
1446 optional module state data.
1447
Mark Dickinson8055afd2009-01-17 10:04:45 +00001448- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1449 type to (void *).
1450
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001451- Issue #4935: The overflow checking code in the expandtabs() method common
1452 to str, bytes and bytearray could be optimized away by the compiler, letting
1453 the interpreter segfault instead of raising an error.
1454
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001455- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1456 __next__ method.
1457
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001458- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1459 function no longer attempt to call the __long__ slot to convert an object
1460 to an integer. Only the __int__ and __trunc__ slots are examined.
1461
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001462- Issue #4893: Use NT threading on CE.
1463
Martin v. Löwisec59d042009-01-12 07:59:10 +00001464- Issue #4915: Port sysmodule to Windows CE.
1465
Antoine Pitrouab868312009-01-10 15:40:25 +00001466- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1467 common cases are optimized thanks to a dedicated fast path and a moderate
1468 amount of loop unrolling.
1469
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001470- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1471 collecting the oldest generation) so that allocating lots of objects without
1472 destroying them does not show quadratic performance. Based on a proposal by
1473 Martin von Löwis at
1474 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1475
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001476- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001477 having been closed (for instance, a read() call could return some
1478 previously buffered data). Patch by Dmitry Vasiliev.
1479
Antoine Pitrou05608432009-01-09 18:53:14 +00001480- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1481 flag to work properly. Furthermore, when specifying -u, the text stdout
1482 and stderr streams have line-by-line buffering enabled (the default being
1483 to buffer arbitrary chunks of data).
1484
Raymond Hettinger35631532009-01-09 03:58:09 +00001485- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1486 instead of ints (reducing its size from 4 to 8 times thereby reducing
1487 Python's overall memory).
1488
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001489- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1490 an existing .py counterpart, override the co_filename attributes of all
1491 code objects if the original filename is obsolete (which can happen if the
1492 file has been renamed, moved, or if it is accessed through different paths).
1493 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1494
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001495- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1496 one byte. Also fixes the meaning of len() so that it returns the number of
1497 items, rather than the size in bytes.
1498
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001499- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1500
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001501- Issue #4747: When the terminal does not use utf-8, executing a script with
1502 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1503
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001504- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001505 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001506
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001507- Issue #3680: Reference cycles created through a dict, set or deque iterator
1508 did not get collected.
1509
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001510- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1511 where the tp_hash and tp_dict slots are both NULL.
1512
Georg Brandlccc47b62008-12-28 11:44:14 +00001513- Issue #4759: None is now allowed as the first argument of
1514 bytearray.translate(). It was always allowed for bytes.translate().
1515
Skip Montanaro80072cb2008-12-23 03:51:14 +00001516- Added test case to ensure attempts to read from a file opened for writing
1517 fail.
1518
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001519- Issue #3106: Speedup some comparisons (str/str and int/int).
1520
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001521- Issue #2183: Simplify and optimize bytecode for list, dict and set
1522 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1523
Antoine Pitrou621601a2008-12-17 23:18:19 +00001524- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1525 print elapsed times, not only when some objects are uncollectable /
1526 unreachable. Original patch by Neil Schemenauer.
1527
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001528- Issue #3439: Add a bit_length method to int.
1529
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001530- Issue #2173: When getting device encoding, check that return value of
1531 nl_langinfo is not the empty string. This was causing silent build
1532 failures on OS X.
1533
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001534- Issue #4597: Fixed several opcodes that weren't always propagating
1535 exceptions.
1536
1537- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001538 context manager returns a value that cannot be converted to a bool.
1539
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001540- Issue #4445: Replace "sizeof(PyBytesObject)" with
1541 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1542 bytes instances. On a typical machine this saves 3 bytes of memory
1543 (on average) per allocation of a bytes instance.
1544
Christian Heimesa872de52008-12-05 08:26:55 +00001545- Issue #4533: File read operation was dreadfully slow due to a slowly
1546 growing read buffer. Fixed by using the same growth rate algorithm as
1547 Python 2.x.
1548
Antoine Pitrou5504e892008-12-06 21:27:53 +00001549- Issue #4509: Various issues surrounding resize of bytearray objects to
1550 which there are buffer exports (e.g. memoryview instances).
1551
Georg Brandlf9734072008-12-07 15:30:06 +00001552- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1553 method on file objects with closefd=False. The file descriptor is still
1554 kept open but the file object behaves like a closed file. The ``FileIO``
1555 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001556
Antoine Pitroubc420402008-12-07 20:14:49 +00001557- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1558 larger than 1.
1559
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001560- Issue #4748: Lambda generators no longer return a value.
1561
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001562- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1563
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001564- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1565 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1566 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1567 of using the replace error handler in PyUnicode_DecodeUTF8().
1568
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001569Library
1570-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001571
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001572- Issue #7071: byte-compilation in Distutils is now done with respect to
1573 sys.dont_write_bytecode.
1574
Tarek Ziadé978cca62009-10-24 13:38:27 +00001575- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1576 raised. Initial patch by Ezio Melotti.
1577
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001578- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001579 Distutils.
1580
Tarek Ziadé31d46072009-09-21 13:55:19 +00001581- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1582
Tarek Ziadé165581c2009-09-09 08:48:07 +00001583- Issue #6163: Fixed HP-UX runtime library dir options in
1584 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1585 Michael Haubenwallner.
1586
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001587- Issue #6693: New functions in site.py to get user/global site packages paths.
1588
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001589- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1590 opening an empty or very small file.
1591
1592- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001593 behavior is similar when used with -O.
1594
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001595- unittest has been split up into a package. All old names should still work.
1596
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001597- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1598 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1599 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1600 for the obsolete get_versions() functions.
1601
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001602- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1603
1604- Issue #6314: logging: Extra checks on the "level" argument in more places.
1605
1606- Issue #2622: Fixed an ImportError when importing email.messsage from a
1607 standalone application built with py2exe or py2app.
1608
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001609- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001610
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001611- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001612 attribute.
1613
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001614- Issue #6413: Fixed the log level in distutils.dist for announce.
1615
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001616- Issue #6403: Fixed package path usage in build_ext.
1617
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001618- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1619 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1620 descriptor errors
1621
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001622- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001623 extension in a subdirectory if the extension name had dots.
1624
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001625- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001626 unixcompiler. Original patch by Sridhar Ratnakumar.
1627
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001628- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1629 httplib, allowing the usage of http_proxy.
1630
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001631- Issue #6287: Added the license field in Distutils documentation.
1632
Tarek Ziadéff543362009-06-11 09:25:41 +00001633- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1634
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001635- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1636 in Makefiles. This prevents compile errors when using syntax like:
1637 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1638
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001639- Issue #6131: test_modulefinder leaked when run after test_distutils.
1640 Patch by Hirokazu Yamamoto.
1641
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001642- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1643
Vinay Sajipaffbd872009-06-11 10:11:47 +00001644- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001645 and tests on pywin32 by Tim Golden.
1646
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001647- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1648
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001649- Issue #6046: Fixed the library extension when distutils build_ext is used
1650 inplace. Initial patch by Roumen Petrov.
1651
Vinay Sajipaffbd872009-06-11 10:11:47 +00001652- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001653 subcommand.
1654
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001655- Issue #6022: a test file was created in the current working directory by
1656 test_get_outputs in Distutils.
1657
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001658- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1659 inplace option. Initial patch by kxroberto.
1660
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001661- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1662 for old-style extensions.
1663
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001664- Issue #5976: Fixed Distutils test_check_environ.
1665
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001666- Issue #5941: Distutils build_clib command was not working anymore because
1667 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1668 Makefile besides AR and make Distutils use it. Original patch by David
1669 Cournapeau.
1670
R. David Murrayb507d2e2009-04-29 15:34:32 +00001671- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1672
Vinay Sajipaffbd872009-06-11 10:11:47 +00001673- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001674 anymore.
1675
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001676- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001677 sysconfig.get_config_vars.
1678
Tarek Ziadé23336082009-04-25 12:39:56 +00001679- Issue #4951: Fixed failure in test_httpservers.
1680
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001681- Issue #5795: Fixed test_distutils failure on Debian ppc.
1682
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001683- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1684
Georg Brandl1f9fa312009-04-27 16:42:58 +00001685- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1686 a value in SafeConfigParser.
1687
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001688- Issue #5732: added a new command in Distutils: check.
1689
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001690- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001691 platforms. Initial patch by Paul Moore.
1692
Tarek Ziadéf6370502009-04-05 22:57:21 +00001693- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1694 Initial fix by Steven Bethard.
1695
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001696- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1697 Initial fix by Wayne Davison.
1698
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001699- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001700
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001701- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001702
Brett Cannonf47e84c2009-04-01 16:06:01 +00001703- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1704 instead of performing them in functions. Helps prevent import deadlocking in
1705 threads.
1706
R. David Murraye59482e2009-04-01 03:42:00 +00001707- Issue #2522: locale.format now checks its first argument to ensure it has
1708 been passed only one pattern, avoiding mysterious errors where it appeared
1709 that it was failing to do localization.
1710
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001711- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1712 Brandl.
1713
Antoine Pitrou350370c2009-03-14 00:13:13 +00001714- Issue #1222: locale.format() bug when the thousands separator is a space
1715 character.
1716
Tarek Ziadé516db942009-03-11 12:52:00 +00001717- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1718 Tim Golden.
1719
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001720- collections.deque() objects now have a read-only attribute called maxlen.
1721
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001722- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1723 it is has been populated and properly configured in order to prevent
1724 window flashing.
1725
Guilherme Polo56f5be52009-03-07 01:54:57 +00001726- Issue #4792: Prevent a segfault in _tkinter by using the
1727 guaranteed to be safe interp argument given to the PythonCmd in place of
1728 the Tcl interpreter taken from a PythonCmd_ClientData.
1729
1730- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1731
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001732- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1733 Original patch by Akira Kitada.
1734
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001735- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1736
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001737- Issue #5385: Fixed mmap crash after resize failure on windows.
1738
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001739- Issue #5179: Fixed subprocess handle leak on failure on windows.
1740
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001741- PEP 372: Added collections.OrderedDict().
1742
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001743- The _asdict() for method for namedtuples now returns an OrderedDict().
1744
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001745- configparser now defaults to using an ordered dictionary.
1746
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001747- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1748 import guess_extension`` was used.
1749
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001750- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1751 with same tagname but larger size than first map. (Windows)
1752
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001753- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1754 overrun.
1755
Tarek Ziadéf0721222009-02-28 10:16:43 +00001756- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1757 bdist_rpm command.
1758
1759- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1760
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001761- Issue #5052: make Distutils compatible with 2.3 again.
1762
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001763- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1764 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001765
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001766- Issue #5287: Add exception handling around findCaller() call to help out
1767 IronPython.
1768
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001769- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1770 The file was resized to wrong size.
1771
1772- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1773
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001774- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001775 from the package_data and the data_files metadata.
1776
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001777- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001778 support.TempdirManager, to avoid writing in the tests directory.
1779
Tarek Ziadé68c50952009-02-13 23:04:17 +00001780- Issue #4524: distutils build_script command failed with --with-suffix=3.
1781 Initial patch by Amaury Forgeot d'Arc.
1782
Tarek Ziadé811d6242009-02-13 22:26:15 +00001783- Issue #2461: added tests for distutils.util
1784
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001785- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1786 which inherited from numbers.py which did not have __slots__ defined. The
1787 numbers hierarchy now has its own __slots__ declarations.
1788
Antoine Pitroub353c122009-02-11 00:39:14 +00001789- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1790 encoding.
1791
Thomas Heller465c8022009-02-10 18:59:04 +00001792- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1793 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1794
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001795- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1796 under NT and OS2. Patch by Philip Jenvey.
1797
Brett Cannonbefb14f2009-02-10 02:10:16 +00001798- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1799 to be recreated. This avoids a timing hole thanks to the old reliance on the
1800 ctime of the files involved.
1801
Guilherme Polob681df42009-02-09 22:33:59 +00001802- Issue #5122: Synchronize tk load failure check to prevent a potential
1803 deadlock.
1804
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001805- Issue #1818: collections.namedtuple() now supports a keyword argument
1806 'rename' which lets invalid fieldnames be automatically converted to
1807 positional names in the form, _1, _2, ...
1808
Guilherme Poloae098992009-02-09 16:44:24 +00001809- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1810
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001811- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1812 public documented method ``ZipImporter.get_filename()``.
1813
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001814- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1815 the execution of packages by looking for and executing a ``__main__``
1816 submodule when a package name is supplied. Initial patch by Andi
1817 Vajda.
1818
Guilherme Polo491aee22009-02-06 23:16:11 +00001819- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1820 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1821 Tkapp_Call when calling from a thread different than the one that created
1822 the Tcl interpreter. Patch by Robert Hancock.
1823
Eric Smith0e5b5622009-02-06 01:32:42 +00001824- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1825 Ross Light.
1826
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001827- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001828 environment/Makefile. Patch by Douglas Greiman.
1829
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001830- Issue #1276768: The verbose option was not used in the code of
1831 distutils.file_util and distutils.dir_util.
1832
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001833- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001834 --enabled-shared activated. Initial patch by Dave Peterson.
1835
Guilherme Polo7f423952009-02-02 21:17:09 +00001836- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1837
Raymond Hettinger85602262009-02-03 04:19:10 +00001838- The shelve module now defaults to pickle protocol 3.
1839
Brett Cannone61426e2009-01-30 01:31:34 +00001840- Fix a bug in the trace module where a bytes object from co_lnotab had its
1841 items being passed through ord().
1842
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001843- Issue #2047: shutil.move() could believe that its destination path was
1844 inside its source path if it began with the same letters (e.g. "src" vs.
1845 "src.new").
1846
Guilherme Polo5f238482009-01-28 14:41:10 +00001847- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1848
Raymond Hettinger89e12962009-01-26 02:09:03 +00001849- Removed isSequenceType(), isMappingType, and isNumberType() from the
1850 operator module; use the abstract base classes instead. Also removed
1851 the repeat() function; use mul() instead.
1852
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001853- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001854 collections.namedtuple() relied on __name__ being defined.
1855
1856- Backport importlib from Python 3.1. Only the import_module() function has
1857 been backported to help facilitate transitions from 2.7 to 3.1.
1858
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001859- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1860 the tar file was overriden by the gztar one.
1861
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001862- Issue #4863: distutils.mwerkscompiler has been removed.
1863
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001864- Added a new itertools functions: combinations_with_replacement()
1865 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001866
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001867- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001868 allowed non-integer arguments.
1869
Jesse Noller41faa542009-01-25 03:45:53 +00001870- Fix and properly document the multiprocessing module's logging
1871 support, expose the internal levels and provide proper usage
1872 examples.
1873
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001874- Issue #1672332: fix unpickling of subnormal floats, which was
1875 producing a ValueError on some platforms.
1876
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001877- Issue #3881: Help Tcl to load even when started through the
1878 unreadable local symlink to "Program Files" on Vista.
1879
Martin v. Löwis59e47792009-01-24 14:10:07 +00001880- Issue #4710: Extract directories properly in the zipfile module;
1881 allow adding directories to a zipfile.
1882
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001883- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001884 --without-threads argument. When this occurs, _multiprocessing will
1885 be disabled, and not compiled.
1886
Antoine Pitrou08838b62009-01-21 00:55:13 +00001887- Issue #5008: When a file is opened in append mode with the new IO library,
1888 do an explicit seek to the end of file (so that e.g. tell() returns the
1889 file size rather than 0). This is consistent with the behaviour of the
1890 traditional 2.x file object.
1891
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001892- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1893 parameter was set.
1894
Mark Dickinson8dd05142009-01-20 20:43:58 +00001895- Issue #4842: Always append a trailing 'L' when pickling longs using
1896 pickle protocol 0. When reading, the 'L' is optional.
1897
Brett Cannonafccd632009-01-20 02:21:27 +00001898- Add the importlib package.
1899
Jesse Noller9a0fc972009-01-18 21:12:58 +00001900- Issue #4301: Patch the logging module to add processName support, remove
1901 _check_logger_class from multiprocessing.
1902
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001903- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001904 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001905
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001906- Issue #4959: inspect.formatargspec now works for keyword only arguments
1907 without defaults.
1908
Jesse Noller6214edd2009-01-19 16:23:53 +00001909- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1910 for *nix machines for negative handles and large int handles. Without this check
1911 it is possible to segfault the interpreter.
1912
Jesse Nollerb0516a62009-01-18 03:11:38 +00001913- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1914 in sharedctypes.py.
1915
1916- Issue #1225107: inspect.isclass() returned True for instances with a custom
1917 __getattr__.
1918
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001919- Issue #3826 and #4791: The socket module now closes the underlying socket
1920 appropriately when it is being used via socket.makefile() objects
1921 rather than delaying the close by waiting for garbage collection to do it.
1922
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001923- Issue #1696199: Add collections.Counter() for rapid and convenient
1924 counting.
1925
Antoine Pitrou308705e2009-01-10 16:22:51 +00001926- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1927
Thomas Heller5e4e4272009-01-08 09:34:20 +00001928- Issue #4867: Fixed a crash in ctypes when passing a string to a
1929 function without defining argtypes.
1930
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001931- Issue #4272: Add an optional argument to the GzipFile constructor to override
1932 the timestamp in the gzip stream. The default value remains the current time.
1933 The information can be used by e.g. gunzip when decompressing. Patch by
1934 Jacques Frechet.
1935
Mark Dickinson315a20a2009-01-04 21:34:18 +00001936- Restore Python 2.3 compatibility for decimal.py.
1937
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001938- Issue #3638: Remove functions from _tkinter module level that depend on
1939 TkappObject to work with multiple threads.
1940
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001941- Issue #4718: Adapt the wsgiref package so that it actually works with
1942 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001943 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1944
Raymond Hettinger771ed762009-01-03 19:20:32 +00001945- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1946 to the decimal module.
1947
Georg Brandl3a9b0622009-01-03 22:07:57 +00001948- Fractions.from_float() no longer loses precision for integers too big to
1949 cast as floats.
1950
Mark Dickinsonf9236412009-01-02 23:23:21 +00001951- Issue #4812: add missing underscore prefix to some internal-use-only
1952 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1953
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001954- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001955 did unnecessary work in the common case where no key function was specified.
1956
Georg Brandlb1441c72009-01-03 22:33:39 +00001957- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1958 the function is not a generator.
1959
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001960- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1961 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001962
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001963- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001964 function. Original patch by Thomas Heller.
1965
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001966- Issue #3767: Convert Tk object to string in tkColorChooser.
1967
Martin v. Löwise354d782008-12-29 16:03:04 +00001968- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1969
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001970- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1971 the code under test can be written inline if more practical.
1972
Georg Brandldb7b6b92009-01-01 15:53:14 +00001973- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1974 works as expected in the interactive environment.
1975
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001976- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1977 Gabriel Genellina.
1978
Antoine Pitrou180a3362008-12-14 16:36:46 +00001979- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1980 boundary.
1981
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001982- Issue #4223: inspect.getsource() will now correctly display source code
1983 for packages loaded via zipimport (or any other conformant PEP 302
1984 loader). Original patch by Alexander Belopolsky.
1985
1986- Issue #4201: pdb can now access and display source code loaded via
1987 zipimport (or any other conformant PEP 302 loader). Original patch by
1988 Alexander Belopolsky.
1989
1990- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1991 302 conformant loader) will now work correctly in most cases (they
1992 are still subject to the constraints that exist for all code running
1993 from inside a module loaded via a PEP 302 loader and attempting to
1994 perform IO operations based on __file__). Original patch by
1995 Alexander Belopolsky.
1996
1997- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1998 allows backporting to maintenance branches. Original patch by
1999 Alexander Belopolsky.
2000
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002001- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2002 a non-ASCII letter.
2003
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002004- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2005
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002006- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2007 codec cannot be found. This is for compatibility with the builtin behavior.
2008
Facundo Batista708d5812008-12-11 04:20:07 +00002009- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2010 give correct results in the case where one argument is a quiet NaN
2011 and the other is a finite number that requires rounding.
2012
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002013- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2014 libs.
2015
Georg Brandlf9734072008-12-07 15:30:06 +00002016- Added the subprocess.check_call_output() convenience function to get output
2017 from a subprocess on success or raise an exception on error.
2018
2019- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2020 support unusual filenames (such as those containing semi-colons) in
2021 Content-Disposition headers.
2022
2023- Issue #4384: Added logging integration with warnings module using
2024 captureWarnings(). This change includes a NullHandler which does nothing;
2025 it will be of use to library developers who want to avoid the "No handlers
2026 could be found for logger XXX" message which can appear if the library user
2027 doesn't configure logging.
2028
2029- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2030 exception.
2031
Georg Brandleee31162008-12-07 15:15:22 +00002032- Issue #4529: fix the parser module's validation of try-except-finally
2033 statements.
2034
2035- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2036 not a malformed option.
2037
2038- Added the subprocess.check_output() convenience function to get output
2039 from a subprocess on success or raise an exception on error.
2040
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002041- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2042 the corresponding tests now pass.
2043
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002044- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2045 it was calling the wrong open() function.
2046
Fred Drake9a0a65b2008-12-04 19:24:50 +00002047- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2048 support unusual filenames (such as those containing semi-colons) in
2049 Content-Disposition headers.
2050
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002051- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2052 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2053
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002054- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2055 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2056 and getservbyport().
2057
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002058- Windows locale mapping updated to Vista.
2059
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002060Tools/Demos
2061-----------
2062
Antoine Pitrou8a681222009-02-07 17:13:31 +00002063- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2064 and make it 2.6-compatible.
2065
Guilherme Poloa7d27972009-01-28 16:06:51 +00002066- Ttk demos added in Demo/tkinter/ttk/
2067
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002068- Issue #4677: add two list comprehension tests to pybench.
2069
Georg Brandlb1441c72009-01-03 22:33:39 +00002070
2071Build
2072-----
2073
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002074- Issue #6094: Build correctly with Subversion 1.7.
2075
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002076- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2077
Antoine Pitrou8966c992009-05-01 21:18:27 +00002078- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2079 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2080
Matthias Klose55708cc2009-04-30 08:06:49 +00002081- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002082 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002083
Matthias Klose906785c2009-02-22 23:18:38 +00002084- Link the shared python library with $(MODLIBS).
2085
Martin v. Löwis11f72102009-02-10 13:13:30 +00002086- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2087
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002088- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2089
Martin v. Löwise97637d2009-01-11 09:45:11 +00002090- Issue #4895: Use _strdup on Windows CE.
2091
Georg Brandlb1441c72009-01-03 22:33:39 +00002092- Issue #4472: "configure --enable-shared" now works on OSX
2093
2094- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2095
2096- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2097
2098- Issue #4289: Remove Cancel button from AdvancedDlg.
2099
2100- Issue #1656675: Register a drop handler for .py* files on Windows.
2101
2102- Issue #4120: Exclude manifest from extension modules in VS2008.
2103
2104- Issue #4091: Install pythonxy.dll in system32 again.
2105
2106- Issue #4018: Disable "for me" installations on Vista.
2107
2108- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2109
2110- Issue #4204: Fixed module build errors on FreeBSD 4.
2111
2112
2113C-API
2114-----
2115
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002116- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2117 NUL: Bogus TypeError detail string.
2118
Mark Dickinson21776072009-02-10 16:13:25 +00002119- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2120 for negative arguments. Previously, it raised TypeError.
2121
Georg Brandlb1441c72009-01-03 22:33:39 +00002122- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2123
2124- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2125 the GIL is released, or owned by another thread.
2126
2127- Issue #4122: On Windows, fix a compilation error when using the
2128 Py_UNICODE_ISSPACE macro in an extension module.
2129
2130
Mark Dickinsone675f082008-12-11 21:56:00 +00002131Extension Modules
2132-----------------
2133
Gregory P. Smith365a1862009-02-12 07:35:29 +00002134- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2135 supporting objects as input no matter how it was compiled (built in
2136 implementations or external openssl library).
2137
Mark Dickinson29500f62009-01-15 15:36:10 +00002138- Issue #4397: Fix occasional test_socket failure on OS X.
2139
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002140- Issue #4279: Fix build of parsermodule under Cygwin.
2141
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002142- Issue #4751: hashlib now releases the GIL when hashing large buffers
2143 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2144 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2145
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002146- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2147
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002148- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2149 or decompress several streams at once on multi-CPU systems. Also, the GIL
2150 is now released when computing the CRC of a large buffer. Patch by ebfe.
2151
Georg Brandlb1441c72009-01-03 22:33:39 +00002152- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2153
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002154- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2155
Mark Dickinsone675f082008-12-11 21:56:00 +00002156- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2157 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002158
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002159- Issue #4583: array.array would not always prohibit resizing when a buffer
2160 has been exported, resulting in an interpreter crash when accessing the
2161 buffer.
2162
Martin v. Löwis841edad2008-11-30 10:36:49 +00002163
Jack Diederiche0cbd692009-04-01 04:27:09 +00002164- Issue #5228: Make functools.partial objects can now be pickled.
2165
Guilherme Polo9de29af2009-01-28 20:40:48 +00002166Tests
2167-----
2168
Antoine Pitrou88909542009-06-29 13:54:42 +00002169- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2170 regression tests in parallel, shortening the total runtime.
2171
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002172- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2173 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2174 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2175 skip the tests if DISPLAY is defined but can't be used.
2176
R. David Murraya21e4ca2009-03-31 23:16:50 +00002177- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002178 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002179 from test support, which does the conversion.
2180
Guilherme Polo9de29af2009-01-28 20:40:48 +00002181- Issue #5083: New 'gui' resource for regrtest.
2182
2183
Brett Cannon7317c1e2008-11-25 19:19:17 +00002184Docs
2185----
2186
Georg Brandl52b92cc2008-05-25 09:43:03 +00002187
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002188**(For information about older versions, consult the HISTORY file.)**