blob: 0cc3d754542607094c20d416caf0bac5f59a00f3 [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
Jesse Noller1f0b6582010-01-27 03:36:01 +0000237- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
238 allowing for a maximum number of tasks within the pool to be completed by
239 the worker before that worker is terminated, and a new one created to
240 replace it.
241
Benjamin Petersond6326642010-01-27 02:25:58 +0000242- Issue #7792: Registering non-classes to ABCs raised an obscure error.
243
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000244- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000245
Ezio Melotti38f00332010-01-25 12:39:47 +0000246- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
247
Benjamin Peterson25001472010-01-25 03:37:42 +0000248- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
249 the release file is empty.
250
Antoine Pitrou1119a642010-01-17 12:16:23 +0000251- Issue #7561: Fix crashes when using bytearray objects with the posix
252 module.
253
R. David Murraya8f480f2010-01-16 18:30:03 +0000254- Issue #1670765: Prevent email.generator.Generator from re-wrapping
255 headers in multipart/signed MIME parts, which fixes one of the sources of
256 invalid modifications to such parts by Generator.
257
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000258- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
259 Patch by Florent Xicluna, along with some additional tests.
260
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000261- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
262 1-byte argument. Patch by Victor Stinner.
263
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000264- Issue #3299: Fix possible crash in the _sre module when given bad
265 argument values in debug mode. Patch by Victor Stinner.
266
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000267- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
268 Patch by Brian Curtin.
269
Benjamin Peterson5efea042010-01-13 03:49:50 +0000270- Issue #7681: Use floor division in appropiate places in the wave module.
271
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000272- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
273 Extension extra options may change the output without changing the .c
274 file). Initial patch by Collin Winter.
275
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000276- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
277 gcc when it has a fully qualified configuration prefix. Initial patch
278 by Arfrever.
279
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000280- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
281 the destruction of weakref'ed objects while iterating.
282
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000283- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
284 Victor Stinner.
285
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000286- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
287 properly handles EINTR within the read, readline, write & flush methods.
288 The socket.sendall() method now properly handles interrupted system calls.
289
Antoine Pitroub1f88352010-01-03 22:37:40 +0000290- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
291 and make it implement the `io.BufferedIOBase` ABC to allow for further
292 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
293
294- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000295 parameter to allow specifying where your connections come from.
296
297- socket.create_connection now accepts an optional source_address parameter.
298
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000299- Issue #5511: now zipfile.ZipFile can be used as a context manager.
300 Initial patch by Brian Curtin.
301
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000302- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
303 MSVC XML Manifest file in text mode so string patterns can be used
304 in regular expressions.
305
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000306- Issue #7552: Removed line feed in the base64 Authorization header in
307 the Distutils upload command to avoid an error when PyPI reads it.
308 This occurs on long passwords. Initial patch by JP St. Pierre.
309
Senthil Kumaran47fff872009-12-20 07:10:31 +0000310- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
311 Tatsuhiro Tsujikawa.
312
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000313- Issue #4757: `zlib.compress` and other methods in the zlib module now
314 raise a TypeError when given an `str` object (rather than a `bytes`-like
315 object). Patch by Victor Stinner and Florent Xicluna.
316
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000317- Issue #7349: Make methods of file objects in the io module accept None as an
318 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
319 the same as passing no argument.
320
Lars Gustäbel365aff32009-12-13 11:42:29 +0000321- Issue #7357: tarfile no longer suppresses fatal extraction errors by
322 default.
323
R. David Murraye8dc2582009-12-10 02:08:06 +0000324- Issue #5949: added check for correct lineends in input from IMAP server
325 in imaplib.
326
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000327- Add a reverse() method to collections.deque().
328
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000329- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
330
Antoine Pitrou781eba72009-12-08 15:57:31 +0000331- Issue #6986: Fix crash in the JSON C accelerator when called with the
332 wrong parameter types. Patch by Victor Stinner.
333
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000334- Issue #7457: added a read_pkg_file method to
335 distutils.dist.DistributionMetadata.
336
Vinay Sajip540f2152009-12-06 17:57:11 +0000337- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
338 TLS with authentication credentials.
339
Tarek Ziadédf872d42009-12-06 09:28:17 +0000340- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
341 generated in Distutils. Patch by Stephen Emslie.
342
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000343- Issue #4120: Drop reference to CRT from manifest when building extensions with
344 msvc9compiler.
345
Antoine Pitroub7572f02009-12-02 20:46:48 +0000346- Issue #7333: The `posix` module gains an `initgroups()` function providing
347 access to the initgroups(3) C library call on Unix systems which implement
348 it. Patch by Jean-Paul Calderone.
349
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000350- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
351 ownership when the group is not forced, because the group may be different
352 from the user's group and inherit from its container when the test is run.
353
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000354- Issue #4486: When an exception has an explicit cause, do not print its
355 implicit context too. This affects the `traceback` module as well as
356 built-in exception printing.
357
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000358- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
359 Robert Collins.
360
Vinay Sajip03f6c112009-11-27 14:03:36 +0000361- Issue #7403: logging: Fixed possible race condition in lock creation.
362
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000363- Issue #6845: Add restart support for binary upload in ftplib. The
364 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
365 argument. Patch by Pablo Mouzo.
366
Antoine Pitroube6859d2009-11-25 23:02:32 +0000367- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
368 method returning the total number of seconds in the duration. Patch by
369 Brian Quinlan.
370
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000371- Issue #7133: SSL objects now support the new buffer API.
372
Senthil Kumaran758025c2009-11-23 19:02:52 +0000373- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
374
Lars Gustäbel9520a432009-11-22 18:48:49 +0000375- Issue #6123: tarfile now opens empty archives correctly and consistently
376 raises ReadError on empty files.
377
Tarek Ziadé26afd482009-11-19 05:39:00 +0000378- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
379 be 2.
380
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000381- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
382 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000383
Lars Gustäbel7b465392009-11-18 20:29:25 +0000384- Issue #7341: Close the internal file object in the TarFile constructor in
385 case of an error.
386
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000387- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
388 Windows box. Help provided by David Bolen.
389
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000390- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
391 TLS or SSL. Patch by Giampaolo Rodola'.
392
Nick Coghlan106274b2009-11-15 23:04:33 +0000393- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
394
Antoine Pitroub8108e22009-11-15 14:25:16 +0000395- Issue #4969: The mimetypes module now reads the MIME database from
396 the registry under Windows. Patch by Gabriel Genellina.
397
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000398- Issue #6816: runpy now provides a run_path function that allows Python code
399 to execute file paths that refer to source or compiled Python files as well
400 as zipfiles, directories and other valid sys.path entries that contain a
401 __main__.py file. This allows applications that run other Python scripts to
402 support the same flexibility as the CPython command line itself.
403
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000404- Issue #7318: multiprocessing now uses a timeout when it fails to establish
405 a connection with another process, rather than looping endlessly. The
406 default timeout is 20 seconds, which should be amply sufficient for
407 local connections.
408
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000409- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
410 unpickled. This fixes crashes under Windows when trying to run
411 test_multiprocessing in verbose mode.
412
Antoine Pitrou434736a2009-11-10 18:46:01 +0000413- Issue #3001: Add a C implementation of recursive locks which is used by
414 default when instantiating a `threading.RLock` object. This makes
415 recursive locks as fast as regular non-recursive locks (previously,
416 they were slower by 10x to 15x).
417
Antoine Pitroub0872682009-11-09 16:08:16 +0000418- Issue #7282: Fix a memory leak when an RLock was used in a thread other
419 than those started through `threading.Thread` (for example, using
420 `_thread.start_new_thread()`).
421
Brett Cannone52c9192009-11-07 23:55:05 +0000422- Issue #7187: Importlib would not silence the IOError raised when trying to
423 write new bytecode when it was made read-only.
424
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000425- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
426 which are part of a reference cycle.
427
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000428- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
429 objects on 64-bit systems. Patch by Michael Broghton.
430
Antoine Pitrou03f13442009-11-02 11:36:51 +0000431- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
432 a modification is done through it. This fixes inconsistencies and test
433 failures on systems with slightly bogus mtime behaviour.
434
Gregory P. Smith50467882009-11-01 18:42:17 +0000435- Issue #7246 & Issue #7208: getpass now properly flushes input before
436 reading from stdin so that existing input does not confuse it and
437 lead to incorrect entry or an IOError. It also properly flushes it
438 afterwards to avoid the terminal echoing the input afterwards on
439 OSes such as Solaris.
440
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000441- Issue #7233: Fix a number of two-argument Decimal methods to make
442 sure that they accept an int or long as the second argument. Also
443 fix buggy handling of large arguments (those with coefficient longer
444 than the current precision) in shift and rotate.
445
Lars Gustäbel1440df22009-10-29 09:39:47 +0000446- Issue #4750: Store the basename of the original filename in the gzip FNAME
447 header as required by RFC 1952.
448
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000449- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
450 Distutils.
451
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000452- Issue #7218: Fix test_site for win32, the directory comparison was done with
453 an uppercase.
454
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000455- Issue #7205: Fix a possible deadlock when using a BZ2File object from
456 several threads at once.
457
Vinay Sajip42ead482009-10-21 20:22:14 +0000458- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
459
Mark Dickinson06bb6742009-10-20 13:38:04 +0000460- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
461 larger than emax.
462
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000463- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
464 platforms, and assorted locale fixes by Derk Drukker.
465
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000466- Issue #5833: Fix extra space character in readline completion with the
467 GNU readline library version 6.0.
468
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000469- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000470
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000471- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
472 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000473
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000474- Issue #7082: When falling back to the MIME 'name' parameter, the
475 correct place to look for it is the Content-Type header.
476
Benjamin Petersond3afada2009-10-09 21:43:09 +0000477- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
478 builtin tokenizer.
479
Mark Dickinson56df8872009-10-07 19:23:50 +0000480- Issue #7048: Force Decimal.logb to round its result when that result
481 is too large to fit in the current precision.
482
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000483- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000484 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000485
Thomas Heller69b639f2009-09-18 20:08:39 +0000486- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
487 does now always result in NULL.
488
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000489- Issue #5042: Structure sub-subclass does now initialize correctly
490 with base class positional arguments.
491
Eric Smith81fd8042009-09-18 13:23:13 +0000492- Issue #6882: Import uuid creates zombies processes.
493
Matthias Klosef6b76b02009-09-13 15:18:53 +0000494- Issue #6635: Fix profiler printing usage message.
495
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000496- Issue #6856: Add a filter keyword argument to TarFile.add().
497
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000498- Issue #6888: pdb's alias command was broken when no arguments were given.
499
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000500- Issue #6857: Default format() alignment should be '>' for Decimal
501 instances.
502
Mark Dickinson825fce32009-09-07 18:08:12 +0000503- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
504 returning NaN or raising InvalidContext. Also, fix infinite recursion
505 in long(Decimal('nan')).
506
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000507- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
508 with no type specifier.
509
Thomas Heller8b939522009-09-04 18:24:41 +0000510- Issue #6239: ctypes.c_char_p return value must return bytes.
511
Chris Withers9c33cbf2009-09-04 17:04:16 +0000512- Issue #6838: Use a list to accumulate the value instead of
513 repeatedly concatenating strings in http.client's
514 HTTPResponse._read_chunked providing a significant speed increase
515 when downloading large files servend with a Transfer-Encoding of 'chunked'.
516
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000517- Trying to import a submodule from a module that is not a package, ImportError
518 should be raised, not AttributeError.
519
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000520- When the globals past to importlib.__import__() has __package__ set to None,
521 fall back to computing what __package__ should be instead of giving up.
522
Brett Cannon6afbaef2009-08-30 19:08:58 +0000523- Raise a TypeError when the name of a module to be imported for
524 importlib.__import__ is not a string (was raising an
525 AttributeError before).
526
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000527- Allow the fromlist passed into importlib.__import__ to be any iterable.
528
Brett Cannon4d75fc12009-08-30 03:47:36 +0000529- Have importlib raise ImportError if None is found in sys.modules.
530
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000531- Issue #6054: Do not normalize stored pathnames in tarfile.
532
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000533- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
534 payloads are now ordered by integer value rather than lexicographically.
535
Guilherme Polobcd03df2009-08-18 15:35:57 +0000536- Issue #1356969: Add missing info methods in tix.HList.
537
538- Issue #1522587: New constants and methods for the tix.Grid widget.
539
540- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
541
542- Issue #1119673: Do not override tkinter.Text methods when creating a
543 ScrolledText.
544
Gregory P. Smith01099702009-08-16 18:58:46 +0000545- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
546
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000547- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
548 the xview* and yview* methods.
549
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000550- Issue #6629: Fix a data corruption issue in the new I/O library, which could
551 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
552 "wb+" mode) after having buffered a certain amount of data for reading. This
553 bug was not present in the pure Python implementation.
554
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000555- Issue #6622: Fix "local variable 'secret' referenced before
556 assignment" bug in POP3.apop.
557
Mark Dickinson45f799f2009-08-02 20:08:54 +0000558- Issue #2715: Remove remnants of Carbon.File from binhex module.
559
Mark Dickinson345adc42009-08-02 10:14:23 +0000560- Issue #6595: The Decimal constructor now allows arbitrary Unicode
561 decimal digits in input, as recommended by the standard. Previously
562 it was restricted to accepting [0-9].
563
Jack Diederich36596a32009-07-26 22:23:04 +0000564- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
565 DO/DONT correctly.
566
Senthil Kumaran67305382009-07-26 04:46:00 +0000567- Issue #1424152: Fix for http.client, urllib.request to support SSL while
568 working through proxy. Original patch by Christopher Li, changes made by
569 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000570
Brett Cannon69194272009-07-20 04:23:48 +0000571- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
572 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
573 and PyPycLoader inherit from this class and provide implementations in
574 relation to other methods required by the ABCs.
575
Brett Cannon64ef00f2009-07-20 03:19:18 +0000576- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
577 the documentation said it did even though the code in PyLoader relied on the
578 abstract method required by ResourceLoader.
579
Mark Dickinson85424c92009-07-18 14:41:42 +0000580- Issue #6431: Make Fraction type return NotImplemented when it doesn't
581 know how to handle a comparison without loss of precision. Also add
582 correct handling of infinities and nans for comparisons with float.
583
Antoine Pitrouf3637322009-08-06 21:00:37 +0000584- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000585
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000586- Issue #6358: The exit status of a command started with os.popen() was
587 reported differently than it did with python 2.x.
588
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000589- Issue #6323: The pdb debugger did not exit when running a script with a
590 syntax error.
591
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000592- Issue #3392: The subprocess communicate() method no longer fails in select()
593 when file descriptors are large; communicate() now uses poll() when possible.
594
Antoine Pitrou54923952009-07-01 14:53:06 +0000595- Issue #6369: Fix an RLE decompression bug in the binhex module.
596
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000597- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
598
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000599- The deprecated function string.maketrans has been removed.
600
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000601- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
602 sys.path.
603
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000604- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
605
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000606Extension Modules
607-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000608
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000609- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
610
Mark Dickinson40714af2009-10-08 15:59:20 +0000611- Issue #7078: Set struct.__doc__ from _struct.__doc__.
612
Mark Dickinson45f992a2009-12-19 11:20:49 +0000613- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000614
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000615- Issue #6877: It is now possible to link the readline extension to the
616 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000617
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000618- Issue #6848: Fix curses module build failure on OS X 10.6.
619
Brett Cannon2f827382009-08-13 19:58:01 +0000620- Fix a segfault that could be triggered by expat with specially formed input.
621
Mark Dickinson1f268282009-07-28 17:22:36 +0000622- Issue #6561: '\d' in a regex now matches only characters with
623 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
624 matched characters with category 'No'.
625
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000626- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000627 failing due to the resize restriction in-place when the object has exported
628 buffers.
629
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000630- Issue #2389: Array objects are now pickled in a portable manner.
631
Matthias Klosea50ffe52010-01-22 01:10:19 +0000632- Expat: Fix DoS via XML document with malformed UTF-8 sequences
633 (CVE_2009_3560).
634
Martin v. Löwis95c46012009-06-28 09:36:14 +0000635Build
636-----
637
Mark Dickinsonde508002010-01-17 21:02:55 +0000638- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
639 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
640 PyMem_Free instead. Also disable caching of powers of 5.
641
Benjamin Petersond78735d2010-01-01 16:04:23 +0000642- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
643
644- Issue #6943: Use pkg-config to find the libffi headers when the
645 --with-system-ffi flag is used.
646
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000647- Issue #7609: Add a --with-system-expat option that causes the system's expat
648 library to be used for the pyexpat module instead of the one included with
649 Python.
650
Benjamin Petersone57d6762009-12-30 03:02:03 +0000651- Issue #7589: Only build the nis module when the correct header files are
652 found.
653
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000654- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000655
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000656- Issue #5792: Extend the short float repr support to x86 systems using
657 icc or suncc.
658
Mark Dickinsona25b1312009-10-31 10:18:44 +0000659- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
660 compiles correctly under gcc on x86-64. This fixes a reported
661 problem with the --with-tsc build on x86-64.
662
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000663- Issue #6802: Fix build issues on MacOSX 10.6
664
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000665- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
666
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000667- Issue 4601: 'make install' did not set the appropriate permissions on
668 directories.
669
Martin v. Löwis95c46012009-06-28 09:36:14 +0000670- Issue 5390: Add uninstall icon independent of whether file
671 extensions are installed.
672
Ronald Oussoren585c1732009-12-24 14:21:55 +0000673- Issue #7541: when using ``python-config`` with a framework install the compiler might
674 use the wrong library.
675
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000676Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000677------------
678
Brett Cannon757df6e2009-08-30 04:00:12 +0000679- Document that importing a module that has None in sys.modules triggers an
680 ImportError.
681
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000682- Issue #6556: Fixed the Distutils configuration files location explanation
683 for Windows.
684
Brett Cannonb49c70c2009-07-15 04:08:33 +0000685Tests
686-----
687
R. David Murray445448c2009-12-20 17:28:31 +0000688- Issue #7376: instead of running a self-test (which was failing) when called
689 with no arguments, doctest.py now gives a usage message.
690
R. David Murrayef1992b2009-12-16 15:19:27 +0000691- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
692
R. David Murray596da442009-12-14 23:06:11 +0000693- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000694 instead of a hardcoded port number in test_rapid_restart.
695
R. David Murrayba311052009-12-04 00:09:14 +0000696- Issue #7431: use TESTFN in test_linecache instead of trying to create a
697 file in the Lib/test directory, which might be read-only for the
698 user running the tests.
699
R. David Murray35768ad2009-11-15 00:23:21 +0000700- Issue #7324: add a sanity check to regrtest argument parsing to
701 catch the case of an option with no handler.
702
R. David Murray7dc72cc2009-11-14 16:13:02 +0000703- Issue #7312: Add a -F flag to run the selected tests in a loop until
704 a test fails. Can be combined with -j.
705
Antoine Pitrou060cee22009-11-13 16:29:04 +0000706- Issue #6551: test_zipimport could import and then destroy some modules of
707 the encodings package, which would make other tests fail further down
708 the road because the internally cached encoders and decoders would point
709 to empty global variables.
710
Antoine Pitrou941ee882009-11-11 20:59:38 +0000711- Issue #7295: Do not use a hardcoded file name in test_tarfile.
712
Antoine Pitrou557934f2009-11-06 22:41:14 +0000713- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
714 primitives such as Lock, RLock, Condition, Event and Semaphore.
715
Brett Cannoncfed0292009-11-05 01:26:57 +0000716- Issue #7248 (part 2): Use a unique temporary directory for importlib source
717 tests instead of tempfile.tempdir. This prevents the tests from sharing state
718 between concurrent executions on the same system.
719
Brett Cannon0ae45112009-11-05 01:17:22 +0000720- Issue #7248: In importlib.test.source.util a try/finally block did not make
721 sure that some referenced objects actually were created in the block before
722 calling methods on the object.
723
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000724- Issue #7222: Make thread "reaping" more reliable so that reference
725 leak-chasing test runs give sensible results. The previous method of
726 reaping threads could return successfully while some Thread objects were
727 still referenced. This also introduces a new private function:
728 :func:`_thread._count()`.
729
R. David Murray27144602009-10-19 15:26:16 +0000730- Issue #7151: fixed regrtest -j so that output to stderr from a test no
731 longer runs the risk of causing the worker thread to fail.
732
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000733- Issue #7055: test___all__ now greedily detects all modules which have an
734 __all__ attribute, rather than using a hardcoded and incomplete list.
735
R. David Murray0bc11ae2009-10-18 22:18:17 +0000736- Issue #7058: Added save/restore for things like sys.argv and cwd to
737 runtest_inner in regrtest, with warnings if the called test modifies them,
738 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000739
Mark Dickinson2e304402009-10-04 18:43:54 +0000740- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
741
Brett Cannon3c273842009-07-20 00:14:29 +0000742- Fixed tests in importlib.test.source.test_abc_loader that were masking
743 the proper exceptions that should be raised for missing or improper code
744 object bytecode.
745
Brett Cannonb49c70c2009-07-15 04:08:33 +0000746- Removed importlib's custom test discovery code and switched to
747 unittest.TestLoader.discover().
748
Antoine Pitroua69ba652010-01-18 21:20:53 +0000749Tools/Demos
750-----------
751
752- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
753 added to the `Tools/` directory. They were previously living in the
754 sandbox.
755
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000756
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000757What's New in Python 3.1?
758=========================
759
760*Release date: 27-June-2009*
761
762Core and Builtins
763-----------------
764
Mark Dickinsonad195562009-06-24 19:01:32 +0000765- Issue #6334: Fix bug in range length calculation for ranges with
766 large arguments.
767
Raymond Hettinger159eac92009-06-23 20:38:54 +0000768- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
769 because it wasn't recognized as a sequence).
770
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000771Library
772-------
773
Georg Brandld07ac642009-08-13 07:50:57 +0000774- Issue #6126: Fixed pdb command-line usage.
775
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000776- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000777
Facundo Batista10706e22009-06-19 20:34:30 +0000778- Issue #6274: Fixed possible file descriptors leak in subprocess.py
779
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000780- Accessing io.StringIO.buffer now raises an AttributeError instead of
781 io.UnsupportedOperation.
782
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000783- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000784 (On Unix)
785
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000786- Issue #1202: zipfile module would cause a struct.error when attempting to
787 store files with a CRC32 > 2**31-1.
788
Matthias Kloseab2b7552009-06-22 13:05:52 +0000789Extension Modules
790-----------------
791
792- Issue #5590: Remove unused global variable in pyexpat extension.
793
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000794
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000795What's New in Python 3.1 Release Candidate 2?
796=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000797
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000798*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000799
800Core and Builtins
801-----------------
802
Raymond Hettinger94f55832009-06-12 18:40:16 +0000803- Fixed SystemError triggered by "range([], 1, -1)".
804
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000805- Issue #5924: On Windows, a large PYTHONPATH environment variable
806 (more than 255 characters) would be completely ignored.
807
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000808- Issue #4547: When debugging a very large function, it was not always
809 possible to update the lineno attribute of the current frame.
810
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000811- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000812 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000813
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000814Library
815-------
816
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000817- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000818 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000819 Popen. Tested under win32 to build the py-postgresql project.
820
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000821- Issue #6258: Support AMD64 in bdist_msi.
822
R. David Murray58641de2009-06-12 15:33:19 +0000823- Issue #6195: fixed doctest to no longer try to read 'source' data from
824 binary files.
825
Vinay Sajipaffbd872009-06-11 10:11:47 +0000826- Issue #5262: Fixed bug in next rollover time computation in
827 TimedRotatingFileHandler.
828
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000829- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
830 errors property. Additionally, the errors and encoding properties of StringIO
831 are always None now.
832
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000833- Issue #6137: The pickle module now translates module names when loading
834 or dumping pickles with a 2.x-compatible protocol, in order to make data
835 sharing and migration easier. This behaviour can be disabled using the
836 new `fix_imports` optional argument.
837
Raymond Hettinger40925d22009-06-04 18:32:39 +0000838- Removed the ipaddr module.
839
Georg Brandlb54d8012009-06-04 09:11:51 +0000840- Issue #3613: base64.{encode,decode}string are now called
841 base64.{encode,decode}bytes which reflects what type they accept and return.
842 The old names are still there as deprecated aliases.
843
Georg Brandl317185a2009-06-04 09:00:56 +0000844- Issue #5767: Remove sgmlop support from xmlrpc.client.
845
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000846- Issue #6150: Fix test_unicode on wide-unicode builds.
847
Antoine Pitrouc06de472009-05-30 21:04:26 +0000848- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
849 parameters.
850
Martin v. Löwis79b13872009-06-01 04:13:14 +0000851Windows
852-------
853
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000854- Issue #6221: Delete test registry key before running the test.
855
Martin v. Löwis79b13872009-06-01 04:13:14 +0000856- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
857
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000858C-API
859-----
860
861- Issue #5735: Python compiled with --with-pydebug should throw an
862 ImportError when trying to import modules compiled without
863 --with-pydebug, and vice-versa.
864
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000865
Brett Cannonc6d936e2009-06-07 20:09:53 +0000866Build
867-----
868
869- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
870 added LIBS to OS X framework builds.
871
Ronald Oussoren99aab652009-06-08 21:22:57 +0000872- Issue #5809: Specifying both --enable-framework and --enable-shared is
873 an error. Configure now explicity tells you about this.
874
875
Brett Cannonc6d936e2009-06-07 20:09:53 +0000876
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000877What's New in Python 3.1 release candidate 1?
878=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000879
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000880*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000881
882Core and Builtins
883-----------------
884
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000885- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
886 of the command line.
887
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000888- Issue #6012: Add cleanup support to O& argument parsing.
889
Eric Smith41669ca2009-05-23 14:23:22 +0000890- Issue #6089: Fixed str.format with certain invalid field specifiers
891 that would raise SystemError.
892
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000893- Issue #5982: staticmethod and classmethod now expose the wrapped
894 function with __func__.
895
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000896- Added support for multiple context managers in the same with-statement.
897 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000898
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000899- Issue #5829: complex("1e500") no longer raises OverflowError. This
900 makes it consistent with float("1e500") and interpretation of real
901 and imaginary literals.
902
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000903- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
904
R. David Murraydd226ea2009-05-13 12:27:21 +0000905- Issue #5994: the marshal module now has docstrings.
906
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000907- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
908 (1) inf and nan strings with trailing whitespace were incorrectly
909 rejected; (2) parsing of strings representing infinities and nans
910 was locale aware; and (3) the interpretation of fromhex('-nan')
911 didn't match that of float('-nan').
912
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000913Library
914-------
915
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000916- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
917
R. David Murrayfb123912009-05-28 18:19:00 +0000918- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
919
R. David Murray1f1b9d32009-05-27 20:56:59 +0000920- Issue #6121: pydoc now ignores leading and trailing spaces in the
921 argument to the 'help' function.
922
Georg Brandlfaf41492009-05-26 18:31:11 +0000923- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
924 arguments for strings with a space in them.
925
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000926- collections.namedtuple() was not working with the following field
927 names: cls, self, tuple, itemgetter, and property.
928
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000929- In unittest, using a skipping decorator on a class is now equivalent to
930 skipping every test on the class. The ClassTestSuite class has been removed.
931
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000932- Issue #6050: Don't fail extracting a directory from a zipfile if
933 the directory already exists.
934
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000935- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
936 than an int, which makes some operations possible under 64-bit Linux (e.g.
937 DN_MULTISHOT with F_NOTIFY).
938
Antoine Pitrou716c4442009-05-23 19:04:03 +0000939- Issue #5761: Add the name of the underlying file to the repr() of various
940 IO objects.
941
R. David Murraycaa27b72009-05-23 18:49:56 +0000942- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
943 by Musashi Tamura, tests by Marcin Bachry.
944
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000945- Issue #1983: Fix functions taking or returning a process identifier to use
946 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
947 a process identifier type wider than the standard C integer type.
948
R. David Murray87e20742009-05-23 01:30:26 +0000949- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
950 Patch by Farhan Ahmad, test by Marcin Bachry.
951
Antoine Pitrou6e610062009-05-15 17:04:50 +0000952- Issue #2116: Weak references and weak dictionaries now support copy()ing and
953 deepcopy()ing.
954
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000955- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
956
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000957- Issue #5918: Fix a crash in the parser module.
958
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000959- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
960
Antoine Pitroue4501852009-05-14 18:55:55 +0000961- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
962 library. This means, for example, that opening an UTF-16 text file in
963 append mode doesn't add a BOM at the end of the file if the file isn't
964 empty.
965
R. David Murray74b89242009-05-13 17:33:03 +0000966- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
967 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
968 corrects a pydoc regression.
969
R. David Murray99352742009-05-07 18:24:38 +0000970- Issue 5955: aifc's close method did not close the file it wrapped,
971 now it does. This also means getfp method now returns the real fp.
972
Benjamin Peterson932073a2009-05-23 16:14:33 +0000973Installation
974------------
975
976- Issue #6047: fullinstall has been removed because Python 3's executable will
977 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000978
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000979- Lib/smtpd.py is no longer installed as a script.
980
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000981Extension Modules
982-----------------
983
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000984- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000985
Martin v. Löwise23c8682009-05-29 16:01:34 +0000986- Issue #4873: Fix resource leaks in error cases of pwd and grp.
987
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000988- Issue #6093: Fix off-by-one error in locale.strxfrm.
989
Benjamin Peterson744af442009-05-23 18:51:49 +0000990- The _functools and _locale modules are now built into the libpython shared
991 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000992
Antoine Pitrou20327222009-05-24 20:39:11 +0000993Build
994-----
995
996- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
997 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
998 Clinton Roy.
999
Brett Cannon1262e7c2009-05-11 01:47:11 +00001000Tests
1001-----
1002
1003- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1004 tests on darwin even when the OS was installed on a case-sensitive
1005 filesystem. Also fixed tests that should not be run when
1006 sys.dont_write_bytecode is true.
1007
1008
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001009What's New in Python 3.1 beta 1?
1010================================
1011
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001012*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001013
1014Core and Builtins
1015-----------------
1016
Mark Dickinson865e01a2009-05-07 16:37:01 +00001017- Issue #5914: Add new C API function PyOS_string_to_double, and
1018 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1019
Eric Smith741191f2009-05-06 13:08:15 +00001020- Issue #3382: float.__format__, complex.__format__, and %-formatting
1021 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1022 affects nan -> NAN and inf -> INF.
1023
Mark Hammond5a607a32009-05-06 08:04:54 +00001024- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1025 in all operations, including splitdrive, split, etc. splitunc() now issues
1026 a PendingDeprecation warning.
1027
Eric Smith63376222009-05-05 14:04:18 +00001028- Issue #5920: For float.__format__, change the behavior with the
1029 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1030 to be like 'g' but with at least one decimal point and with a
1031 default precision of 12. Previously, the behavior the same but with
1032 a default precision of 6. This more closely matches str(), and
1033 reduces surprises when adding alignment flags to the empty
1034 presentation type. This also affects the new complex.__format__ in
1035 the same way.
1036
Martin v. Löwis011e8422009-05-05 04:43:17 +00001037- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1038
R. David Murrayb18500d2009-05-04 22:59:07 +00001039- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1040 shadowed by classtype's, even if it was None. property now
1041 inserts the __doc__ into the subclass instance __dict__.
1042
Antoine Pitrou244651a2009-05-04 18:56:13 +00001043- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1044 sequences. Patch by Nick Barnes and Victor Stinner.
1045
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001046- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001047
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001048- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1049 received a new method, detach(). detach() disconnects the underlying stream
1050 from the buffer or text IO and returns it.
1051
Mark Dickinson33841c32009-05-01 15:37:04 +00001052- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1053 floats with absolute value over 1e50. Also remove length
1054 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1055 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001056
Eric Smith741191f2009-05-06 13:08:15 +00001057- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001058 format(complex(1, 2./3), '.5') now produces a sensible result.
1059
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001060- Issue #5864: Fix empty format code formatting for floats so that it
1061 never gives more than the requested number of significant digits.
1062
Eric Smith6dc46f52009-04-27 20:39:49 +00001063- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1064 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1065
Eric Smithcc32a112009-04-26 21:35:14 +00001066- Issue #5835: Deprecate PyOS_ascii_formatd.
1067
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001068- Issue #4971: Fix titlecase for characters that are their own
1069 titlecase, but not their own uppercase.
1070
Benjamin Peterson193152c2009-04-25 01:08:45 +00001071- Issue #5283: Setting __class__ in __del__ caused a segfault.
1072
Mark Dickinsonad476da2009-04-23 19:14:16 +00001073- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1074 z involves nans, infs or negative zeros.
1075
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001076- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001077
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001078- Issue #1869 (and many duplicates): make round(x, n) correctly
1079 rounded for a float x, by using the decimal <-> binary conversions
1080 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1081 consistently agrees with format(x, '.2f').
1082
Benjamin Petersonae937c02009-04-18 20:54:08 +00001083- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1084 some builtin types.
1085
Eric Smith0923d1d2009-04-16 20:16:10 +00001086- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1087
Eric Smith35e84722009-04-16 20:21:28 +00001088- Issue #5515: str.format() type 'n' combined with commas and leading
1089 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001090
1091- Implement PEP 378, Format Specifier for Thousands Separator, for
1092 floats.
1093
Mark Dickinson3370cce2009-04-17 22:40:53 +00001094- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001095 1e11, not 1e12. This avoids printing 13 significant digits in
1096 situations where only 12 of them are correct. Example problem
1097 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1098 long time.)
1099
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001100- Issue #1580: On most platforms, use a 'short' float repr: for a
1101 finite float x, repr(x) now outputs a string based on the shortest
1102 sequence of decimal digits that rounds to x. Previous behaviour was
1103 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001104 Another minor difference is that the new repr switches to
1105 exponential notation at 1e16 instead of the previous 1e17; this
1106 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001107
1108 There's a new sys attribute sys.float_repr_style, which takes
1109 the value 'short' to indicate that we're using short float repr,
1110 and 'legacy' if the short float repr isn't available for one
1111 reason or another.
1112
1113 The float repr change involves incorporating David Gay's 'perfect
1114 rounding' code into the Python core (it's in Python/dtoa.c). As a
1115 secondary consequence, all string-to-float and float-to-string
1116 conversions (including all float formatting operations) will be
1117 correctly rounded on these platforms.
1118
1119 See issue 1580 discussions for details of platforms for which
1120 this change does not apply.
1121
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001122- Issue #5759: float() didn't call __float__ on str subclasses.
1123
Georg Brandlabc38772009-04-12 15:51:51 +00001124- The string.maketrans() function is deprecated; there is a new static method
1125 maketrans() on the bytes and bytearray classes. This removes confusion about
1126 the types string.maketrans() is supposed to work with, and mirrors the
1127 methods available on the str class.
1128
R. David Murraydc6da8a2009-04-09 22:16:43 +00001129- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1130 its clarity and its speed.
1131
Matthias Klose091c7b12009-04-07 13:24:27 +00001132- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1133 to avoid compiler warnings.
1134
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001135- Issue #3739: The unicode-internal encoder now reports the number of characters
1136 consumed like any other encoder (instead of the number of bytes).
1137
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001138Installation
1139------------
1140
1141- Issue #5756: Install idle and pydoc with a 3 suffix.
1142
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001143Library
1144-------
1145
Martin v. Löwis403117a2009-05-24 19:19:17 +00001146- Issue #5311: bdist_msi can now build packages that do not depend on a
1147 specific Python version.
1148
Raymond Hettingereb816952009-05-29 01:22:18 +00001149- Issue #5150: IDLE's format menu now has an option to strip trailing
1150 whitespace.
1151
Vinay Sajipaffbd872009-06-11 10:11:47 +00001152- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001153 the right type checkings anymore.
1154
Thomas Heller00cfc372009-05-05 19:04:40 +00001155- Issue #4875: On win32, ctypes.util.find_library does no longer
1156 return directories.
1157
Georg Brandl243ad662009-05-05 09:00:19 +00001158- Issue #5142: Add the ability to skip modules while stepping to pdb.
1159
Georg Brandl991f9202009-05-05 08:31:54 +00001160- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1161 looking for files given by a relative filename.
1162
Georg Brandleaa84ef2009-05-05 08:14:33 +00001163- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1164 turtle demos in Demo/turtle.
1165
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001166- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1167 extracting a file to the root directory.
1168
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001169- Issue #5913: os.listdir() should fail for empty path on windows.
1170
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001171- Issue #5084: unpickling now interns the attribute names of pickled objects,
1172 saving memory and avoiding growth in size of subsequent pickles. Proposal
1173 and original patch by Jake McGuire.
1174
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001175- The json module now works exclusively with str and not bytes.
1176
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001177- Issue #3959: The ipaddr module has been added to the standard library.
1178 Contributed by Google.
1179
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001180- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1181 error when a named pipe is encountered, rather than blocking infinitely.
1182
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001183- Issue #5857: tokenize.tokenize() now returns named tuples.
1184
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001185- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1186
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001187- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1188 string is already in normalized form, by performing a quick check beforehand.
1189 Original patch by Rauli Ruohonen.
1190
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001191- Issue #5853: calling a function of the mimetypes module from several threads
1192 at once could hit the recursion limit if the mimetypes database hadn't been
1193 initialized before.
1194
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001195- Issue #5854: Updated __all__ to include some missing names and remove some
1196 names which should not be exported.
1197
Thomas Heller34596a92009-04-24 20:50:00 +00001198- Issue #3102: All global symbols that the _ctypes extension defines
1199 are now prefixed with 'Py' or '_ctypes'.
1200
1201- Issue #5041: ctypes does now allow pickling wide character.
1202
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001203- Issue #5812: For the two-argument form of the Fraction constructor,
1204 Fraction(m, n), m and n are permitted to be arbitrary Rational
1205 instances.
1206
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001207- Issue #5812: Fraction('1e6') is valid: more generally, any string
1208 that's valid for float() is now valid for Fraction(), with the
1209 exception of strings representing NaNs and infinities.
1210
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001211- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1212 bugs. Patch by Brian Quinlan.
1213
R. David Murray9e94ddf2009-04-13 17:06:33 +00001214- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1215 results in a handle_expt_event call, not handle_read_event, and POLLERR
1216 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1217 dispatcher now has an 'ignore_log_types' attribute for suppressing
1218 log messages, which is set to 'warning' by default.
1219
Matthias Klosea3d29e82009-04-07 13:13:10 +00001220- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1221 new arguments introduced in 2.5.
1222
Walter Dörwald1b08b302009-04-25 14:13:56 +00001223- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1224 makeunicodedata.py and regenerated the Unicode database (This fixes
1225 u'\u1d79'.lower() == '\x00').
1226
Matthias Klose535336f2009-04-07 13:49:45 +00001227Extension Modules
1228-----------------
1229
Benjamin Petersone04b6272009-05-04 22:25:21 +00001230- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1231 pwd.
1232
Mark Dickinsonea835e72009-04-19 20:40:33 +00001233- Issue #5463: In struct module, remove deprecated float coercion
1234 for integer type codes: struct.pack('L', 0.3) should now raise
1235 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1236 The version number has been bumped to 0.3.
1237
Matthias Klose535336f2009-04-07 13:49:45 +00001238- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1239 using Berkley-DB.
1240
Nick Coghlan47384702009-04-22 16:13:36 +00001241Tests
1242-----
1243
1244- Issue #5354: New test support function import_fresh_module() makes
1245 it easy to import both normal and optimised versions of modules.
1246 test_heapq and test_warnings have been adjusted to use it, tests for
1247 other modules with both C and Python implementations in the stdlib
1248 can be adjusted to use it over time.
1249
Walter Dörwald4ba80132009-04-25 12:48:43 +00001250- Issue #5837: Certain sequences of calls to set() and unset() for
1251 support.EnvironmentVarGuard objects restored the environment variables
1252 incorrectly on __exit__.
1253
Benjamin Petersonb173f782009-05-05 22:31:58 +00001254C-API
1255-----
1256
1257- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1258
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001259
Benjamin Petersond1735892009-03-07 18:46:21 +00001260What's New in Python 3.1 alpha 2?
1261=================================
1262
Benjamin Peterson88f14352009-04-04 21:06:52 +00001263*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001264
1265Core and Builtins
1266-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001267
Eric Smith1e1d7d22009-04-03 22:25:33 +00001268- Implement PEP 378, Format Specifier for Thousands Separator, for
1269 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001270
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001271- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1272
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001273- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1274 byte, and the 'C' code only accepts a unicode character.
1275
Georg Brandl406b3d82009-04-11 21:24:37 +00001276- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1277 when hitting the recursion limit under certain circumstances.
1278
Brett Cannon0759dd62009-04-01 18:13:07 +00001279- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1280
Georg Brandlab6f2f62009-03-31 04:16:10 +00001281- Fix a segfault when running test_exceptions with coverage, caused by
1282 insufficient checks in accessors of Exception.__context__.
1283
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001284- Issue #5604: non-ASCII characters in module name passed to
1285 imp.find_module() were converted to UTF-8 while the path is
1286 converted to the default filesystem encoding, causing nonsense.
1287
Benjamin Peterson09832742009-03-26 17:15:46 +00001288- Issue #5126: str.isprintable() returned False for space characters.
1289
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001290- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1291 the end sys.path, for compatibility with the system install of Python.
1292
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001293- Issue #4688: Add a heuristic so that tuples and dicts containing only
1294 untrackable objects are not tracked by the garbage collector. This can
1295 reduce the size of collections and therefore the garbage collection overhead
1296 on long-running programs, depending on their particular use of datatypes.
1297
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001298- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1299 improve its performance. Long divisions and remainder operations
1300 are now between 50% and 150% faster.
1301
Mark Dickinsonbd792642009-03-18 20:06:12 +00001302- Issue #4258: Make it possible to use base 2**30 instead of base
1303 2**15 for the internal representation of integers, for performance
1304 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1305 --enable-big-digits option to configure, which overrides the
1306 default. Add sys.int_info structseq to provide information about
1307 the internal format.
1308
Mark Dickinson081dfee2009-03-18 14:47:41 +00001309- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1310 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1311 and sizeof(Py_UNICODE) == 2.
1312
Eric Smith8ec90442009-03-14 12:29:34 +00001313- Issue #5237: Allow auto-numbered fields in str.format(). For
1314 example: '{} {}'.format(1, 2) == '1 2'.
1315
Antoine Pitrou652e7072009-03-13 19:25:20 +00001316- Issue #5392: when a very low recursion limit was set, the interpreter would
1317 abort with a fatal error after the recursion limit was hit twice.
1318
Matthias Klose042f1332009-04-04 14:32:42 +00001319- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1320 short file names.
1321
Benjamin Petersond1735892009-03-07 18:46:21 +00001322Library
1323-------
1324
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001325- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001326 mailbox.MH.get_message().
1327
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001328- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1329 error substitutions from non-strict codec error callbacks in
1330 incrementalencoder and StreamWriter.
1331
Georg Brandl33c28812009-04-01 23:07:29 +00001332- Issue #5656: Fix the coverage reporting when running the test suite with
1333 the -T argument.
1334
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001335- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1336
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001337- Issue #5624: Fix the _winreg module name still used in several modules.
1338
Benjamin Petersona1b49012009-03-31 23:11:32 +00001339- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1340
Jesse Nollera9314042009-03-31 22:36:44 +00001341- Issue #5619: Multiprocessing children disobey the debug flag and causes
1342 popups on windows buildbots. Patch applied to work around this issue.
1343
Jesse Noller32d68c22009-03-31 18:48:42 +00001344- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1345
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001346- Issue #5387: Fixed mmap.move crash by integer overflow.
1347
Jesse Nollerf8d00852009-03-31 03:25:07 +00001348- Issue #5261: Patch multiprocessing's semaphore.c to support context
1349 manager use: "with multiprocessing.Lock()" works now.
1350
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001351- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1352 bytes already but the failure was non-obvious.
1353
Jesse Noller7af4ef82009-03-30 16:47:15 +00001354- Issue #5177: Multiprocessing's SocketListener class now uses
1355 socket.SO_REUSEADDR on all connections so that the user no longer needs
1356 to wait 120 seconds for the socket to expire.
1357
Benjamin Peterson48e24782009-03-29 13:02:52 +00001358- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1359
Antoine Pitrou66994e12009-03-29 00:45:26 +00001360- Issue #1174606: Calling read() without arguments of an unbounded file
1361 (typically /dev/zero under Unix) could crash the interpreter.
1362
Benjamin Peterson59406a92009-03-26 17:10:29 +00001363- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1364 io.BufferedRandom have been deprecated for removal in Python 3.2.
1365
Lars Gustäbel42e00912009-03-22 20:34:29 +00001366- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1367 forever on incomplete input. That caused tarfile.open() to hang when used
1368 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1369 partial bzip2 compressed data.
1370
Mark Dickinson79f52032009-03-17 23:12:51 +00001371- Issue #2110: Add support for thousands separator and 'n' type
1372 specifier to Decimal.__format__
1373
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001374- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1375 '>' alignment characters.
1376
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001377- The error detection code in FileIO.close() could fail to reflect the `errno`
1378 value, and report it as -1 instead.
1379
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001380- Issue #5016: FileIO.seekable() could return False if the file position
1381 was negative when truncated to a C int. Patch by Victor Stinner.
1382
Mark Dickinsonae681df2009-03-21 10:26:31 +00001383Extension Modules
1384-----------------
1385
Benjamin Petersone099b372009-04-04 17:09:35 +00001386- Issue #5391: mmap now deals exclusively with bytes.
1387
Mark Dickinsonae681df2009-03-21 10:26:31 +00001388- Issue #5463: In struct module, remove deprecated overflow wrapping
1389 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001390 struct.error instead of returning b'\xff\xff\xff\xff'. The
1391 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1392 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001393
Benjamin Petersond1735892009-03-07 18:46:21 +00001394
Benjamin Petersona58a6262009-03-07 16:34:40 +00001395What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001396================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001397
Benjamin Petersona58a6262009-03-07 16:34:40 +00001398*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001399
1400Core and Builtins
1401-----------------
1402
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001403- The io module has been reimplemented in C for speed.
1404
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001405- Give dict views an informative __repr__.
1406
Eric Smith5e5c0db2009-02-20 14:25:03 +00001407- Issue #5247: Improve error message when unknown format codes are
1408 used when using str.format() with str, int, and float arguments.
1409
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001410- Issue #5249: time.strftime returned malformed string when format string
1411 contained non ascii character on windows.
1412
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001413- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1414 source has already been decoded into str.
1415
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001416- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1417 rotating the object pointer by 4 bits to the right.
1418
Mark Dickinson87ec0852009-02-09 17:15:59 +00001419- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1420 it now forces its argument to double before testing for infinity.
1421
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001422- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1423 returns a non-number type.
1424
Benjamin Peterson87618552009-02-08 15:00:52 +00001425- Issue #5182: Removed memoryview.__str__.
1426
Mark Dickinsonc008a172009-02-01 13:59:22 +00001427- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1428 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001429 the type definition cmpfunc. The tp_compare slot has been renamed
1430 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001431
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001432- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001433 were suppressing all exceptions. These include list() and bytearray().
1434
Mark Dickinson1124e712009-01-28 21:25:58 +00001435- Issue #4707: round(x, n) now returns an integer if x is an integer.
1436 Previously it returned a float.
1437
Antoine Pitroub52ec782009-01-25 16:34:23 +00001438- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1439 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1440 evaluation loop is compiled with a new dispatch mechanism which gives
1441 speedups of up to 20%, depending on the system, on various benchmarks.
1442
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001443- Issue #4874: Most builtin decoders now reject unicode input.
1444
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001445- Issue #4842: Don't allow trailing 'L' when constructing an integer
1446 from a string.
1447
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001448- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1449
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001450- Issue #4838: When a module is deallocated, free the memory backing the
1451 optional module state data.
1452
Mark Dickinson8055afd2009-01-17 10:04:45 +00001453- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1454 type to (void *).
1455
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001456- Issue #4935: The overflow checking code in the expandtabs() method common
1457 to str, bytes and bytearray could be optimized away by the compiler, letting
1458 the interpreter segfault instead of raising an error.
1459
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001460- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1461 __next__ method.
1462
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001463- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1464 function no longer attempt to call the __long__ slot to convert an object
1465 to an integer. Only the __int__ and __trunc__ slots are examined.
1466
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001467- Issue #4893: Use NT threading on CE.
1468
Martin v. Löwisec59d042009-01-12 07:59:10 +00001469- Issue #4915: Port sysmodule to Windows CE.
1470
Antoine Pitrouab868312009-01-10 15:40:25 +00001471- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1472 common cases are optimized thanks to a dedicated fast path and a moderate
1473 amount of loop unrolling.
1474
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001475- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1476 collecting the oldest generation) so that allocating lots of objects without
1477 destroying them does not show quadratic performance. Based on a proposal by
1478 Martin von Löwis at
1479 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1480
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001481- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001482 having been closed (for instance, a read() call could return some
1483 previously buffered data). Patch by Dmitry Vasiliev.
1484
Antoine Pitrou05608432009-01-09 18:53:14 +00001485- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1486 flag to work properly. Furthermore, when specifying -u, the text stdout
1487 and stderr streams have line-by-line buffering enabled (the default being
1488 to buffer arbitrary chunks of data).
1489
Raymond Hettinger35631532009-01-09 03:58:09 +00001490- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1491 instead of ints (reducing its size from 4 to 8 times thereby reducing
1492 Python's overall memory).
1493
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001494- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1495 an existing .py counterpart, override the co_filename attributes of all
1496 code objects if the original filename is obsolete (which can happen if the
1497 file has been renamed, moved, or if it is accessed through different paths).
1498 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1499
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001500- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1501 one byte. Also fixes the meaning of len() so that it returns the number of
1502 items, rather than the size in bytes.
1503
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001504- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1505
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001506- Issue #4747: When the terminal does not use utf-8, executing a script with
1507 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1508
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001509- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001510 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001511
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001512- Issue #3680: Reference cycles created through a dict, set or deque iterator
1513 did not get collected.
1514
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001515- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1516 where the tp_hash and tp_dict slots are both NULL.
1517
Georg Brandlccc47b62008-12-28 11:44:14 +00001518- Issue #4759: None is now allowed as the first argument of
1519 bytearray.translate(). It was always allowed for bytes.translate().
1520
Skip Montanaro80072cb2008-12-23 03:51:14 +00001521- Added test case to ensure attempts to read from a file opened for writing
1522 fail.
1523
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001524- Issue #3106: Speedup some comparisons (str/str and int/int).
1525
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001526- Issue #2183: Simplify and optimize bytecode for list, dict and set
1527 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1528
Antoine Pitrou621601a2008-12-17 23:18:19 +00001529- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1530 print elapsed times, not only when some objects are uncollectable /
1531 unreachable. Original patch by Neil Schemenauer.
1532
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001533- Issue #3439: Add a bit_length method to int.
1534
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001535- Issue #2173: When getting device encoding, check that return value of
1536 nl_langinfo is not the empty string. This was causing silent build
1537 failures on OS X.
1538
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001539- Issue #4597: Fixed several opcodes that weren't always propagating
1540 exceptions.
1541
1542- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001543 context manager returns a value that cannot be converted to a bool.
1544
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001545- Issue #4445: Replace "sizeof(PyBytesObject)" with
1546 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1547 bytes instances. On a typical machine this saves 3 bytes of memory
1548 (on average) per allocation of a bytes instance.
1549
Christian Heimesa872de52008-12-05 08:26:55 +00001550- Issue #4533: File read operation was dreadfully slow due to a slowly
1551 growing read buffer. Fixed by using the same growth rate algorithm as
1552 Python 2.x.
1553
Antoine Pitrou5504e892008-12-06 21:27:53 +00001554- Issue #4509: Various issues surrounding resize of bytearray objects to
1555 which there are buffer exports (e.g. memoryview instances).
1556
Georg Brandlf9734072008-12-07 15:30:06 +00001557- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1558 method on file objects with closefd=False. The file descriptor is still
1559 kept open but the file object behaves like a closed file. The ``FileIO``
1560 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001561
Antoine Pitroubc420402008-12-07 20:14:49 +00001562- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1563 larger than 1.
1564
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001565- Issue #4748: Lambda generators no longer return a value.
1566
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001567- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1568
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001569- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1570 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1571 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1572 of using the replace error handler in PyUnicode_DecodeUTF8().
1573
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001574Library
1575-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001576
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001577- Issue #7071: byte-compilation in Distutils is now done with respect to
1578 sys.dont_write_bytecode.
1579
Tarek Ziadé978cca62009-10-24 13:38:27 +00001580- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1581 raised. Initial patch by Ezio Melotti.
1582
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001583- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001584 Distutils.
1585
Tarek Ziadé31d46072009-09-21 13:55:19 +00001586- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1587
Tarek Ziadé165581c2009-09-09 08:48:07 +00001588- Issue #6163: Fixed HP-UX runtime library dir options in
1589 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1590 Michael Haubenwallner.
1591
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001592- Issue #6693: New functions in site.py to get user/global site packages paths.
1593
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001594- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1595 opening an empty or very small file.
1596
1597- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001598 behavior is similar when used with -O.
1599
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001600- unittest has been split up into a package. All old names should still work.
1601
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001602- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1603 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1604 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1605 for the obsolete get_versions() functions.
1606
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001607- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1608
1609- Issue #6314: logging: Extra checks on the "level" argument in more places.
1610
1611- Issue #2622: Fixed an ImportError when importing email.messsage from a
1612 standalone application built with py2exe or py2app.
1613
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001614- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001615
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001616- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001617 attribute.
1618
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001619- Issue #6413: Fixed the log level in distutils.dist for announce.
1620
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001621- Issue #6403: Fixed package path usage in build_ext.
1622
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001623- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1624 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1625 descriptor errors
1626
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001627- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001628 extension in a subdirectory if the extension name had dots.
1629
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001630- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001631 unixcompiler. Original patch by Sridhar Ratnakumar.
1632
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001633- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1634 httplib, allowing the usage of http_proxy.
1635
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001636- Issue #6287: Added the license field in Distutils documentation.
1637
Tarek Ziadéff543362009-06-11 09:25:41 +00001638- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1639
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001640- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1641 in Makefiles. This prevents compile errors when using syntax like:
1642 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1643
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001644- Issue #6131: test_modulefinder leaked when run after test_distutils.
1645 Patch by Hirokazu Yamamoto.
1646
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001647- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1648
Vinay Sajipaffbd872009-06-11 10:11:47 +00001649- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001650 and tests on pywin32 by Tim Golden.
1651
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001652- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1653
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001654- Issue #6046: Fixed the library extension when distutils build_ext is used
1655 inplace. Initial patch by Roumen Petrov.
1656
Vinay Sajipaffbd872009-06-11 10:11:47 +00001657- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001658 subcommand.
1659
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001660- Issue #6022: a test file was created in the current working directory by
1661 test_get_outputs in Distutils.
1662
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001663- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1664 inplace option. Initial patch by kxroberto.
1665
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001666- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1667 for old-style extensions.
1668
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001669- Issue #5976: Fixed Distutils test_check_environ.
1670
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001671- Issue #5941: Distutils build_clib command was not working anymore because
1672 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1673 Makefile besides AR and make Distutils use it. Original patch by David
1674 Cournapeau.
1675
R. David Murrayb507d2e2009-04-29 15:34:32 +00001676- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1677
Vinay Sajipaffbd872009-06-11 10:11:47 +00001678- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001679 anymore.
1680
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001681- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001682 sysconfig.get_config_vars.
1683
Tarek Ziadé23336082009-04-25 12:39:56 +00001684- Issue #4951: Fixed failure in test_httpservers.
1685
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001686- Issue #5795: Fixed test_distutils failure on Debian ppc.
1687
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001688- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1689
Georg Brandl1f9fa312009-04-27 16:42:58 +00001690- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1691 a value in SafeConfigParser.
1692
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001693- Issue #5732: added a new command in Distutils: check.
1694
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001695- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001696 platforms. Initial patch by Paul Moore.
1697
Tarek Ziadéf6370502009-04-05 22:57:21 +00001698- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1699 Initial fix by Steven Bethard.
1700
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001701- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1702 Initial fix by Wayne Davison.
1703
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001704- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001705
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001706- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001707
Brett Cannonf47e84c2009-04-01 16:06:01 +00001708- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1709 instead of performing them in functions. Helps prevent import deadlocking in
1710 threads.
1711
R. David Murraye59482e2009-04-01 03:42:00 +00001712- Issue #2522: locale.format now checks its first argument to ensure it has
1713 been passed only one pattern, avoiding mysterious errors where it appeared
1714 that it was failing to do localization.
1715
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001716- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1717 Brandl.
1718
Antoine Pitrou350370c2009-03-14 00:13:13 +00001719- Issue #1222: locale.format() bug when the thousands separator is a space
1720 character.
1721
Tarek Ziadé516db942009-03-11 12:52:00 +00001722- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1723 Tim Golden.
1724
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001725- collections.deque() objects now have a read-only attribute called maxlen.
1726
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001727- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1728 it is has been populated and properly configured in order to prevent
1729 window flashing.
1730
Guilherme Polo56f5be52009-03-07 01:54:57 +00001731- Issue #4792: Prevent a segfault in _tkinter by using the
1732 guaranteed to be safe interp argument given to the PythonCmd in place of
1733 the Tcl interpreter taken from a PythonCmd_ClientData.
1734
1735- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1736
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001737- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1738 Original patch by Akira Kitada.
1739
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001740- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1741
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001742- Issue #5385: Fixed mmap crash after resize failure on windows.
1743
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001744- Issue #5179: Fixed subprocess handle leak on failure on windows.
1745
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001746- PEP 372: Added collections.OrderedDict().
1747
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001748- The _asdict() for method for namedtuples now returns an OrderedDict().
1749
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001750- configparser now defaults to using an ordered dictionary.
1751
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001752- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1753 import guess_extension`` was used.
1754
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001755- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1756 with same tagname but larger size than first map. (Windows)
1757
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001758- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1759 overrun.
1760
Tarek Ziadéf0721222009-02-28 10:16:43 +00001761- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1762 bdist_rpm command.
1763
1764- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1765
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001766- Issue #5052: make Distutils compatible with 2.3 again.
1767
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001768- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1769 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001770
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001771- Issue #5287: Add exception handling around findCaller() call to help out
1772 IronPython.
1773
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001774- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1775 The file was resized to wrong size.
1776
1777- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1778
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001779- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001780 from the package_data and the data_files metadata.
1781
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001782- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001783 support.TempdirManager, to avoid writing in the tests directory.
1784
Tarek Ziadé68c50952009-02-13 23:04:17 +00001785- Issue #4524: distutils build_script command failed with --with-suffix=3.
1786 Initial patch by Amaury Forgeot d'Arc.
1787
Tarek Ziadé811d6242009-02-13 22:26:15 +00001788- Issue #2461: added tests for distutils.util
1789
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001790- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1791 which inherited from numbers.py which did not have __slots__ defined. The
1792 numbers hierarchy now has its own __slots__ declarations.
1793
Antoine Pitroub353c122009-02-11 00:39:14 +00001794- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1795 encoding.
1796
Thomas Heller465c8022009-02-10 18:59:04 +00001797- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1798 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1799
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001800- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1801 under NT and OS2. Patch by Philip Jenvey.
1802
Brett Cannonbefb14f2009-02-10 02:10:16 +00001803- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1804 to be recreated. This avoids a timing hole thanks to the old reliance on the
1805 ctime of the files involved.
1806
Guilherme Polob681df42009-02-09 22:33:59 +00001807- Issue #5122: Synchronize tk load failure check to prevent a potential
1808 deadlock.
1809
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001810- Issue #1818: collections.namedtuple() now supports a keyword argument
1811 'rename' which lets invalid fieldnames be automatically converted to
1812 positional names in the form, _1, _2, ...
1813
Guilherme Poloae098992009-02-09 16:44:24 +00001814- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1815
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001816- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1817 public documented method ``ZipImporter.get_filename()``.
1818
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001819- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1820 the execution of packages by looking for and executing a ``__main__``
1821 submodule when a package name is supplied. Initial patch by Andi
1822 Vajda.
1823
Guilherme Polo491aee22009-02-06 23:16:11 +00001824- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1825 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1826 Tkapp_Call when calling from a thread different than the one that created
1827 the Tcl interpreter. Patch by Robert Hancock.
1828
Eric Smith0e5b5622009-02-06 01:32:42 +00001829- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1830 Ross Light.
1831
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001832- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001833 environment/Makefile. Patch by Douglas Greiman.
1834
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001835- Issue #1276768: The verbose option was not used in the code of
1836 distutils.file_util and distutils.dir_util.
1837
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001838- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001839 --enabled-shared activated. Initial patch by Dave Peterson.
1840
Guilherme Polo7f423952009-02-02 21:17:09 +00001841- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1842
Raymond Hettinger85602262009-02-03 04:19:10 +00001843- The shelve module now defaults to pickle protocol 3.
1844
Brett Cannone61426e2009-01-30 01:31:34 +00001845- Fix a bug in the trace module where a bytes object from co_lnotab had its
1846 items being passed through ord().
1847
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001848- Issue #2047: shutil.move() could believe that its destination path was
1849 inside its source path if it began with the same letters (e.g. "src" vs.
1850 "src.new").
1851
Guilherme Polo5f238482009-01-28 14:41:10 +00001852- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1853
Raymond Hettinger89e12962009-01-26 02:09:03 +00001854- Removed isSequenceType(), isMappingType, and isNumberType() from the
1855 operator module; use the abstract base classes instead. Also removed
1856 the repeat() function; use mul() instead.
1857
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001858- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001859 collections.namedtuple() relied on __name__ being defined.
1860
1861- Backport importlib from Python 3.1. Only the import_module() function has
1862 been backported to help facilitate transitions from 2.7 to 3.1.
1863
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001864- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1865 the tar file was overriden by the gztar one.
1866
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001867- Issue #4863: distutils.mwerkscompiler has been removed.
1868
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001869- Added a new itertools functions: combinations_with_replacement()
1870 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001871
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001872- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001873 allowed non-integer arguments.
1874
Jesse Noller41faa542009-01-25 03:45:53 +00001875- Fix and properly document the multiprocessing module's logging
1876 support, expose the internal levels and provide proper usage
1877 examples.
1878
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001879- Issue #1672332: fix unpickling of subnormal floats, which was
1880 producing a ValueError on some platforms.
1881
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001882- Issue #3881: Help Tcl to load even when started through the
1883 unreadable local symlink to "Program Files" on Vista.
1884
Martin v. Löwis59e47792009-01-24 14:10:07 +00001885- Issue #4710: Extract directories properly in the zipfile module;
1886 allow adding directories to a zipfile.
1887
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001888- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001889 --without-threads argument. When this occurs, _multiprocessing will
1890 be disabled, and not compiled.
1891
Antoine Pitrou08838b62009-01-21 00:55:13 +00001892- Issue #5008: When a file is opened in append mode with the new IO library,
1893 do an explicit seek to the end of file (so that e.g. tell() returns the
1894 file size rather than 0). This is consistent with the behaviour of the
1895 traditional 2.x file object.
1896
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001897- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1898 parameter was set.
1899
Mark Dickinson8dd05142009-01-20 20:43:58 +00001900- Issue #4842: Always append a trailing 'L' when pickling longs using
1901 pickle protocol 0. When reading, the 'L' is optional.
1902
Brett Cannonafccd632009-01-20 02:21:27 +00001903- Add the importlib package.
1904
Jesse Noller9a0fc972009-01-18 21:12:58 +00001905- Issue #4301: Patch the logging module to add processName support, remove
1906 _check_logger_class from multiprocessing.
1907
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001908- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001909 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001910
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001911- Issue #4959: inspect.formatargspec now works for keyword only arguments
1912 without defaults.
1913
Jesse Noller6214edd2009-01-19 16:23:53 +00001914- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1915 for *nix machines for negative handles and large int handles. Without this check
1916 it is possible to segfault the interpreter.
1917
Jesse Nollerb0516a62009-01-18 03:11:38 +00001918- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1919 in sharedctypes.py.
1920
1921- Issue #1225107: inspect.isclass() returned True for instances with a custom
1922 __getattr__.
1923
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001924- Issue #3826 and #4791: The socket module now closes the underlying socket
1925 appropriately when it is being used via socket.makefile() objects
1926 rather than delaying the close by waiting for garbage collection to do it.
1927
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001928- Issue #1696199: Add collections.Counter() for rapid and convenient
1929 counting.
1930
Antoine Pitrou308705e2009-01-10 16:22:51 +00001931- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1932
Thomas Heller5e4e4272009-01-08 09:34:20 +00001933- Issue #4867: Fixed a crash in ctypes when passing a string to a
1934 function without defining argtypes.
1935
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001936- Issue #4272: Add an optional argument to the GzipFile constructor to override
1937 the timestamp in the gzip stream. The default value remains the current time.
1938 The information can be used by e.g. gunzip when decompressing. Patch by
1939 Jacques Frechet.
1940
Mark Dickinson315a20a2009-01-04 21:34:18 +00001941- Restore Python 2.3 compatibility for decimal.py.
1942
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001943- Issue #3638: Remove functions from _tkinter module level that depend on
1944 TkappObject to work with multiple threads.
1945
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001946- Issue #4718: Adapt the wsgiref package so that it actually works with
1947 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001948 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1949
Raymond Hettinger771ed762009-01-03 19:20:32 +00001950- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1951 to the decimal module.
1952
Georg Brandl3a9b0622009-01-03 22:07:57 +00001953- Fractions.from_float() no longer loses precision for integers too big to
1954 cast as floats.
1955
Mark Dickinsonf9236412009-01-02 23:23:21 +00001956- Issue #4812: add missing underscore prefix to some internal-use-only
1957 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1958
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001959- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001960 did unnecessary work in the common case where no key function was specified.
1961
Georg Brandlb1441c72009-01-03 22:33:39 +00001962- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1963 the function is not a generator.
1964
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001965- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1966 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001967
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001968- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001969 function. Original patch by Thomas Heller.
1970
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001971- Issue #3767: Convert Tk object to string in tkColorChooser.
1972
Martin v. Löwise354d782008-12-29 16:03:04 +00001973- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1974
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001975- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1976 the code under test can be written inline if more practical.
1977
Georg Brandldb7b6b92009-01-01 15:53:14 +00001978- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1979 works as expected in the interactive environment.
1980
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001981- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1982 Gabriel Genellina.
1983
Antoine Pitrou180a3362008-12-14 16:36:46 +00001984- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1985 boundary.
1986
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001987- Issue #4223: inspect.getsource() will now correctly display source code
1988 for packages loaded via zipimport (or any other conformant PEP 302
1989 loader). Original patch by Alexander Belopolsky.
1990
1991- Issue #4201: pdb can now access and display source code loaded via
1992 zipimport (or any other conformant PEP 302 loader). Original patch by
1993 Alexander Belopolsky.
1994
1995- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1996 302 conformant loader) will now work correctly in most cases (they
1997 are still subject to the constraints that exist for all code running
1998 from inside a module loaded via a PEP 302 loader and attempting to
1999 perform IO operations based on __file__). Original patch by
2000 Alexander Belopolsky.
2001
2002- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2003 allows backporting to maintenance branches. Original patch by
2004 Alexander Belopolsky.
2005
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002006- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2007 a non-ASCII letter.
2008
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002009- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2010
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002011- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2012 codec cannot be found. This is for compatibility with the builtin behavior.
2013
Facundo Batista708d5812008-12-11 04:20:07 +00002014- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2015 give correct results in the case where one argument is a quiet NaN
2016 and the other is a finite number that requires rounding.
2017
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002018- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2019 libs.
2020
Georg Brandlf9734072008-12-07 15:30:06 +00002021- Added the subprocess.check_call_output() convenience function to get output
2022 from a subprocess on success or raise an exception on error.
2023
2024- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2025 support unusual filenames (such as those containing semi-colons) in
2026 Content-Disposition headers.
2027
2028- Issue #4384: Added logging integration with warnings module using
2029 captureWarnings(). This change includes a NullHandler which does nothing;
2030 it will be of use to library developers who want to avoid the "No handlers
2031 could be found for logger XXX" message which can appear if the library user
2032 doesn't configure logging.
2033
2034- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2035 exception.
2036
Georg Brandleee31162008-12-07 15:15:22 +00002037- Issue #4529: fix the parser module's validation of try-except-finally
2038 statements.
2039
2040- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2041 not a malformed option.
2042
2043- Added the subprocess.check_output() convenience function to get output
2044 from a subprocess on success or raise an exception on error.
2045
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002046- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2047 the corresponding tests now pass.
2048
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002049- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2050 it was calling the wrong open() function.
2051
Fred Drake9a0a65b2008-12-04 19:24:50 +00002052- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2053 support unusual filenames (such as those containing semi-colons) in
2054 Content-Disposition headers.
2055
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002056- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2057 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2058
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002059- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2060 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2061 and getservbyport().
2062
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002063- Windows locale mapping updated to Vista.
2064
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002065Tools/Demos
2066-----------
2067
Antoine Pitrou8a681222009-02-07 17:13:31 +00002068- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2069 and make it 2.6-compatible.
2070
Guilherme Poloa7d27972009-01-28 16:06:51 +00002071- Ttk demos added in Demo/tkinter/ttk/
2072
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002073- Issue #4677: add two list comprehension tests to pybench.
2074
Georg Brandlb1441c72009-01-03 22:33:39 +00002075
2076Build
2077-----
2078
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002079- Issue #6094: Build correctly with Subversion 1.7.
2080
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002081- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2082
Antoine Pitrou8966c992009-05-01 21:18:27 +00002083- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2084 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2085
Matthias Klose55708cc2009-04-30 08:06:49 +00002086- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002087 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002088
Matthias Klose906785c2009-02-22 23:18:38 +00002089- Link the shared python library with $(MODLIBS).
2090
Martin v. Löwis11f72102009-02-10 13:13:30 +00002091- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2092
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002093- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2094
Martin v. Löwise97637d2009-01-11 09:45:11 +00002095- Issue #4895: Use _strdup on Windows CE.
2096
Georg Brandlb1441c72009-01-03 22:33:39 +00002097- Issue #4472: "configure --enable-shared" now works on OSX
2098
2099- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2100
2101- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2102
2103- Issue #4289: Remove Cancel button from AdvancedDlg.
2104
2105- Issue #1656675: Register a drop handler for .py* files on Windows.
2106
2107- Issue #4120: Exclude manifest from extension modules in VS2008.
2108
2109- Issue #4091: Install pythonxy.dll in system32 again.
2110
2111- Issue #4018: Disable "for me" installations on Vista.
2112
2113- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2114
2115- Issue #4204: Fixed module build errors on FreeBSD 4.
2116
2117
2118C-API
2119-----
2120
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002121- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2122 NUL: Bogus TypeError detail string.
2123
Mark Dickinson21776072009-02-10 16:13:25 +00002124- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2125 for negative arguments. Previously, it raised TypeError.
2126
Georg Brandlb1441c72009-01-03 22:33:39 +00002127- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2128
2129- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2130 the GIL is released, or owned by another thread.
2131
2132- Issue #4122: On Windows, fix a compilation error when using the
2133 Py_UNICODE_ISSPACE macro in an extension module.
2134
2135
Mark Dickinsone675f082008-12-11 21:56:00 +00002136Extension Modules
2137-----------------
2138
Gregory P. Smith365a1862009-02-12 07:35:29 +00002139- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2140 supporting objects as input no matter how it was compiled (built in
2141 implementations or external openssl library).
2142
Mark Dickinson29500f62009-01-15 15:36:10 +00002143- Issue #4397: Fix occasional test_socket failure on OS X.
2144
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002145- Issue #4279: Fix build of parsermodule under Cygwin.
2146
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002147- Issue #4751: hashlib now releases the GIL when hashing large buffers
2148 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2149 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2150
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002151- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2152
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002153- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2154 or decompress several streams at once on multi-CPU systems. Also, the GIL
2155 is now released when computing the CRC of a large buffer. Patch by ebfe.
2156
Georg Brandlb1441c72009-01-03 22:33:39 +00002157- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2158
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002159- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2160
Mark Dickinsone675f082008-12-11 21:56:00 +00002161- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2162 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002163
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002164- Issue #4583: array.array would not always prohibit resizing when a buffer
2165 has been exported, resulting in an interpreter crash when accessing the
2166 buffer.
2167
Martin v. Löwis841edad2008-11-30 10:36:49 +00002168
Jack Diederiche0cbd692009-04-01 04:27:09 +00002169- Issue #5228: Make functools.partial objects can now be pickled.
2170
Guilherme Polo9de29af2009-01-28 20:40:48 +00002171Tests
2172-----
2173
Antoine Pitrou88909542009-06-29 13:54:42 +00002174- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2175 regression tests in parallel, shortening the total runtime.
2176
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002177- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2178 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2179 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2180 skip the tests if DISPLAY is defined but can't be used.
2181
R. David Murraya21e4ca2009-03-31 23:16:50 +00002182- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002183 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002184 from test support, which does the conversion.
2185
Guilherme Polo9de29af2009-01-28 20:40:48 +00002186- Issue #5083: New 'gui' resource for regrtest.
2187
2188
Brett Cannon7317c1e2008-11-25 19:19:17 +00002189Docs
2190----
2191
Georg Brandl52b92cc2008-05-25 09:43:03 +00002192
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002193**(For information about older versions, consult the HISTORY file.)**