blob: 6d27deed87eda7fe0bf3c1245fdb044414d9d313 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Antoine Pitrou05b7c562010-02-02 22:47:00 +000015- Issue #7385: Fix a crash in `MemoryView_FromObject` when
16 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
17
Mark Dickinsonbc099642010-01-29 17:27:24 +000018- Issue #7788: Fix an interpreter crash produced by deleting a list
19 slice with very large step value.
20
Eric Smithf7bb5782010-01-27 00:44:57 +000021- Issue #7766: Change sys.getwindowsversion() return value to a named
22 tuple and add the additional members returned in an OSVERSIONINFOEX
23 structure. The new members are service_pack_major, service_pack_minor,
24 suite_mask, and product_type.
25
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000026- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
27 could crash in many places because of the PyByteArray_AS_STRING() macro
28 returning NULL. The macro now returns a statically allocated empty
29 string instead.
30
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000031- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
32 where the right hand operand is a set of constants, by turning the set into
33 a frozenset and pre-building it as a constant. The comparison operation
34 is made against the constant instead of building a new set each time it is
35 executed (a similar optimization already existed which turned a list of
36 constants into a pre-built tuple). Patch and additional tests by Dave
37 Malcolm.
38
Antoine Pitrouf2c54842010-01-13 08:07:53 +000039- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
40 methods of bytes, bytearray and unicode objects by using a common
41 implementation based on stringlib's fast search. Patch by Florent Xicluna.
42
Mark Dickinson45b63652010-01-16 18:10:25 +000043- Issue #7632: Fix various str -> float conversion bugs present in 2.7
44 alpha 2, including: (1) a serious 'wrong output' bug that could
45 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
46 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +000047 strings corresponding to subnormal values, (3) a memory leak for
48 some values large enough to cause overflow, and (4) a number of
49 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +000050
Benjamin Petersonaea44282010-01-04 01:10:28 +000051- The __complex__ method is now looked up on the class of instances to make it
52 consistent with other special methods.
53
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +000054- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
55 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
56
Benjamin Petersond12362a2009-12-30 19:44:54 +000057- Issue #7604: Deleting an unset slotted attribute did not raise an
58 AttributeError.
59
Mark Dickinson9ab44b52009-12-30 16:22:49 +000060- Issue #7534: Fix handling of IEEE specials (infinities, nans,
61 negative zero) in ** operator. The behaviour now conforms to that
62 described in C99 Annex F.
63
Mark Dickinsoncbb62742009-12-27 15:09:50 +000064- Issue #1811: improve accuracy and cross-platform consistency for
65 true division of integers: the result of a/b is now correctly
66 rounded for ints a and b (at least on IEEE 754 platforms), and in
67 particular does not depend on the internal representation of an int.
68
Ronald Oussoren6f6c5622009-12-24 14:03:19 +000069- Issue #6834: replace the implementation for the 'python' and 'pythonw'
70 executables on OSX.
71
72 These executables now work properly with the arch(1) command:
73 ``arch -ppc python`` will start a universal binary version of python
74 in PPC mode (unlike previous releases).
75
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +000076- Issue #7466: segmentation fault when the garbage collector is called
77 in the middle of populating a tuple. Patch by Florent Xicluna.
78
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +000079- Issue #7419: setlocale() could crash the interpreter on Windows when called
80 with invalid values.
81
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +000082- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
83 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
84
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000085- Issue #7085: Fix crash when importing some extensions in a thread
86 on MacOSX 10.6.
87
Philip Jenvey1309adb2009-11-17 03:43:14 +000088- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
89
Mark Dickinson6f1d0492009-11-15 13:58:49 +000090- Issue #6970: Remove redundant calls when comparing objects that don't
91 implement the relevant rich comparison methods.
92
Mark Dickinsond550c9a2009-11-15 09:57:26 +000093- Issue #7298: fixes for range and reversed(range(...)). Iteration
94 over range(a, b, c) incorrectly gave an empty iterator when a, b and
95 c fit in C long but the length of the range did not. Also fix
96 several cases where reversed(range(a, b, c)) gave wrong results, and
97 fix a refleak for reversed(range(a, b, c)) with large arguments.
98
Raymond Hettingerfc438512009-11-01 20:55:33 +000099- Issue #7244: itertools.izip_longest() no longer ignores exceptions
100 raised during the formation of an output tuple.
101
Benjamin Petersonb2e796a2009-10-28 21:59:39 +0000102- Issue #3297: On wide unicode builds, do not split unicode characters into
103 surrogates.
104
Mark Dickinsonf9724882009-10-26 21:51:18 +0000105- Remove length limitation when constructing a complex number from a string.
106
Mark Dickinson27a87a22009-10-25 20:43:34 +0000107- Issue #1087418: Boost performance of bitwise operations for longs.
108
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000109- Support for AtheOS has been completely removed from the code base. It was
110 disabled since Python 3.0.
111
112- Support for several legacy threading libraries has been disabled. These
113 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
114 will be entirely removed in 3.3.
115
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000116- Peephole constant folding had missed UNARY_POSITIVE.
117
Antoine Pitrou011bd622009-10-20 21:52:47 +0000118- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
119 fixes the problem of some exceptions being thrown at shutdown when the
120 interpreter is killed. Patch by Adam Olsen.
121
Antoine Pitrou671141d2009-10-19 19:37:25 +0000122- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000123 support.
124
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000125- Issue #7120: logging: Removed import of multiprocessing which is causing
126 crash in GAE.
127
Neil Schemenauere441cb72009-10-14 19:14:38 +0000128- Issue #1754094: Improve the stack depth calculation in the compiler.
129 There should be no other effect than a small decrease in memory use.
130 Patch by Christopher Tur Lesniewski-Laas.
131
Antoine Pitrou403ce782009-10-14 17:14:16 +0000132- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000133 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000134
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000135- Issue #1571184: The Unicode database contains properties for more characters.
136 The tables for code points representing numeric values, white spaces or line
137 breaks are now generated from the official Unicode Character Database files,
138 and include information from the Unihan.txt file.
139
Mark Dickinson2683ab02009-09-29 19:21:35 +0000140- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
141 of producing internally inconsistent Python longs.
142
Philip Jenvey26713ca2009-09-29 04:57:18 +0000143- Issue #6990: Fix threading.local subclasses leaving old state around
144 after a reference cycle GC which could be recycled by new locals.
145
Benjamin Peterson4905e802009-09-27 02:43:28 +0000146- Issue #5460: Fix an ambiguity in the grammar.
147
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000148- Issue #1766304: Improve performance of membership tests on range objects.
149
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000150- Issue #6713: Improve performance of integer -> string conversions.
151
Mark Dickinson54a3db92009-09-06 10:19:23 +0000152- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
153
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000154- Issue #6750: A text file opened with io.open() could duplicate its output
155 when writing from multiple threads at the same time.
156
Benjamin Peterson14327712009-08-15 13:23:05 +0000157- Issue #6707: dir() on an uninitialized module caused a crash.
158
Georg Brandl953152f2009-07-22 12:03:59 +0000159- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
160
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000161- Issue #6573: set.union() stopped processing inputs if an instance of self
162 occurred in the argument chain.
163
R. David Murray046f7232009-07-19 02:22:05 +0000164- Issue #6070: On posix platforms import no longer copies the execute bit
165 from the .py file to the .pyc file if it is set.
166
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000167- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
168
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000169- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
170 object, and not an int. Fix the corresponding error message, and the
171 documentation.
172
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000173- The deprecated PyCObject has been removed.
174
Mark Dickinson835a6c82009-06-30 15:45:17 +0000175- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
176 This fixes a build failure on HP-UX: int32_t and uint32_t are
177 defined in inttypes.h instead of stdint.h on that platform.
178
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000179- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000180 the 'surrogateescape' error handler, a string which contains unpaired
181 surrogates.
182
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000183- Issue #4856: Remove checks for win NT.
184
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000185- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
186 argument to construct a null-initialized bytes object.
187
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000188- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
189 These methods allow the conversion of integers to bytes, and vice-versa.
190
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000191- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
192 instances from being copied with copy.copy(), and bytes subclasses
193 from being pickled properly.
194
Benjamin Peterson466a7822009-07-02 21:44:01 +0000195C-API
196-----
197
Mark Dickinson93f562c2010-01-30 10:30:15 +0000198- Issue #7767: New function PyLong_AsLongLongAndOverflow added,
199 analogous to PyLong_AsLongAndOverflow.
200
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000201- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
202 has '\0' at the end.
203
Mark Dickinsonde604012010-01-01 19:27:32 +0000204- Issue #5080: The argument parsing functions PyArg_ParseTuple,
205 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
206 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
207 DeprecationWarning for float arguments passed with the 'L' format
208 code. This will become a TypeError in a future version of Python,
209 to match the behaviour of the other integer format codes.
210
Georg Brandl1e28a272009-12-28 08:41:01 +0000211- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
212
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000213- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
214 in PyArg_ParseTupleAndKeywords.
215
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000216- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000217 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
218
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000219- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
220 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
221 should used for accessing the d_type and d_name members of structures
222 using PyDescr_COMMON.
223
224- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000225
Benjamin Peterson466a7822009-07-02 21:44:01 +0000226- The code flags for old __future__ features are now available again.
227
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000228- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
229 PyCode_Addr2Line().
230
231- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
232 object at a specified file, function, and line number.
233
234- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
235 ``const char *`` as the string is stored beyond the call.
236
Benjamin Peterson05159c42009-12-03 03:01:27 +0000237- Issue #2422: When compiled with the ``--with-valgrind`` option, the
238 pymalloc allocator will be automatically disabled when running under
239 Valgrind. This gives improved memory leak detection when running
240 under Valgrind, while taking advantage of pymalloc at other times.
241
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000242Library
243-------
244
Mark Dickinson84230a12010-02-18 14:49:50 +0000245- Issue #7633: In the decimal module, Context class methods (with the
246 exception of canonical and is_canonical) now accept instances of int
247 and long wherever a Decimal instance is accepted, and implicitly
248 convert that argument to Decimal. Previously only some arguments
249 were converted.
250
R. David Murray1f449142010-02-11 00:15:05 +0000251- Issue #7835: shelve should no longer produce mysterious warnings during
252 interpreter shutdown.
253
Antoine Pitrou99f69ee2010-02-09 17:25:47 +0000254- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">")
255 in XML processing instructions and comments. These raw characters are
256 allowed by the XML specification, and are necessary when outputting e.g.
257 PHP code in a processing instruction. Patch by Neil Muller.
258
Antoine Pitrouc77dd322010-02-09 16:51:16 +0000259- Issue #6233: ElementTree failed converting unicode characters to XML
260 entities when they could't be represented in the requested output
261 encoding. Patch by Jerry Chen.
262
Ronald Oussorenee5c8852010-02-07 20:24:02 +0000263- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to
264 specify the compression type.
265
Antoine Pitroub6375f12010-02-04 20:23:24 +0000266- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
267 specified, rather than fall through to AF_PACKET (in the `socket` module).
268 Also, raise ValueError rather than TypeError when an unknown TIPC address
269 type is specified. Patch by Brian Curtin.
270
Antoine Pitrou905a2ff2010-01-31 22:47:27 +0000271- Issue #6939: Fix file I/O objects in the `io` module to keep the original
272 file position when calling `truncate()`. It would previously change the
273 file position to the given argument, which goes against the tradition of
274 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
275
Antoine Pitroua32f9a22010-01-27 21:18:57 +0000276- Issue #7610: Reworked implementation of the internal
277 :class:`zipfile.ZipExtFile` class used to represent files stored inside
278 an archive. The new implementation is significantly faster and can
279 be wrapped in a :class:`io.BufferedReader` object for more speedups.
280 It also solves an issue where interleaved calls to `read()` and
281 `readline()` give wrong results. Patch by Nir Aides.
282
Jesse Noller1f0b6582010-01-27 03:36:01 +0000283- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
284 allowing for a maximum number of tasks within the pool to be completed by
285 the worker before that worker is terminated, and a new one created to
286 replace it.
287
Benjamin Petersond6326642010-01-27 02:25:58 +0000288- Issue #7792: Registering non-classes to ABCs raised an obscure error.
289
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000290- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000291
Ezio Melotti38f00332010-01-25 12:39:47 +0000292- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
293
Benjamin Peterson25001472010-01-25 03:37:42 +0000294- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
295 the release file is empty.
296
Antoine Pitrou1119a642010-01-17 12:16:23 +0000297- Issue #7561: Fix crashes when using bytearray objects with the posix
298 module.
299
R. David Murraya8f480f2010-01-16 18:30:03 +0000300- Issue #1670765: Prevent email.generator.Generator from re-wrapping
301 headers in multipart/signed MIME parts, which fixes one of the sources of
302 invalid modifications to such parts by Generator.
303
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000304- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
305 Patch by Florent Xicluna, along with some additional tests.
306
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000307- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
308 1-byte argument. Patch by Victor Stinner.
309
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000310- Issue #3299: Fix possible crash in the _sre module when given bad
311 argument values in debug mode. Patch by Victor Stinner.
312
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000313- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
314 Patch by Brian Curtin.
315
Benjamin Peterson5efea042010-01-13 03:49:50 +0000316- Issue #7681: Use floor division in appropiate places in the wave module.
317
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000318- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
319 Extension extra options may change the output without changing the .c
320 file). Initial patch by Collin Winter.
321
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000322- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
323 gcc when it has a fully qualified configuration prefix. Initial patch
324 by Arfrever.
325
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000326- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
327 the destruction of weakref'ed objects while iterating.
328
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000329- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
330 Victor Stinner.
331
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000332- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
333 properly handles EINTR within the read, readline, write & flush methods.
334 The socket.sendall() method now properly handles interrupted system calls.
335
Antoine Pitroub1f88352010-01-03 22:37:40 +0000336- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
337 and make it implement the `io.BufferedIOBase` ABC to allow for further
338 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
339
340- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000341 parameter to allow specifying where your connections come from.
342
343- socket.create_connection now accepts an optional source_address parameter.
344
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000345- Issue #5511: now zipfile.ZipFile can be used as a context manager.
346 Initial patch by Brian Curtin.
347
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000348- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
349 MSVC XML Manifest file in text mode so string patterns can be used
350 in regular expressions.
351
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000352- Issue #7552: Removed line feed in the base64 Authorization header in
353 the Distutils upload command to avoid an error when PyPI reads it.
354 This occurs on long passwords. Initial patch by JP St. Pierre.
355
Senthil Kumaran47fff872009-12-20 07:10:31 +0000356- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
357 Tatsuhiro Tsujikawa.
358
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000359- Issue #4757: `zlib.compress` and other methods in the zlib module now
360 raise a TypeError when given an `str` object (rather than a `bytes`-like
361 object). Patch by Victor Stinner and Florent Xicluna.
362
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000363- Issue #7349: Make methods of file objects in the io module accept None as an
364 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
365 the same as passing no argument.
366
Lars Gustäbel365aff32009-12-13 11:42:29 +0000367- Issue #7357: tarfile no longer suppresses fatal extraction errors by
368 default.
369
R. David Murraye8dc2582009-12-10 02:08:06 +0000370- Issue #5949: added check for correct lineends in input from IMAP server
371 in imaplib.
372
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000373- Add a reverse() method to collections.deque().
374
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000375- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
376
Antoine Pitrou781eba72009-12-08 15:57:31 +0000377- Issue #6986: Fix crash in the JSON C accelerator when called with the
378 wrong parameter types. Patch by Victor Stinner.
379
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000380- Issue #7457: added a read_pkg_file method to
381 distutils.dist.DistributionMetadata.
382
Vinay Sajip540f2152009-12-06 17:57:11 +0000383- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
384 TLS with authentication credentials.
385
Tarek Ziadédf872d42009-12-06 09:28:17 +0000386- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
387 generated in Distutils. Patch by Stephen Emslie.
388
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000389- Issue #4120: Drop reference to CRT from manifest when building extensions with
390 msvc9compiler.
391
Antoine Pitroub7572f02009-12-02 20:46:48 +0000392- Issue #7333: The `posix` module gains an `initgroups()` function providing
393 access to the initgroups(3) C library call on Unix systems which implement
394 it. Patch by Jean-Paul Calderone.
395
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000396- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
397 ownership when the group is not forced, because the group may be different
398 from the user's group and inherit from its container when the test is run.
399
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000400- Issue #4486: When an exception has an explicit cause, do not print its
401 implicit context too. This affects the `traceback` module as well as
402 built-in exception printing.
403
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000404- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
405 Robert Collins.
406
Vinay Sajip03f6c112009-11-27 14:03:36 +0000407- Issue #7403: logging: Fixed possible race condition in lock creation.
408
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000409- Issue #6845: Add restart support for binary upload in ftplib. The
410 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
411 argument. Patch by Pablo Mouzo.
412
Antoine Pitroube6859d2009-11-25 23:02:32 +0000413- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
414 method returning the total number of seconds in the duration. Patch by
415 Brian Quinlan.
416
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000417- Issue #7133: SSL objects now support the new buffer API.
418
Senthil Kumaran758025c2009-11-23 19:02:52 +0000419- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
420
Lars Gustäbel9520a432009-11-22 18:48:49 +0000421- Issue #6123: tarfile now opens empty archives correctly and consistently
422 raises ReadError on empty files.
423
Tarek Ziadé26afd482009-11-19 05:39:00 +0000424- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
425 be 2.
426
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000427- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
428 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000429
Lars Gustäbel7b465392009-11-18 20:29:25 +0000430- Issue #7341: Close the internal file object in the TarFile constructor in
431 case of an error.
432
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000433- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
434 Windows box. Help provided by David Bolen.
435
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000436- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
437 TLS or SSL. Patch by Giampaolo Rodola'.
438
Nick Coghlan106274b2009-11-15 23:04:33 +0000439- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
440
Antoine Pitroub8108e22009-11-15 14:25:16 +0000441- Issue #4969: The mimetypes module now reads the MIME database from
442 the registry under Windows. Patch by Gabriel Genellina.
443
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000444- Issue #6816: runpy now provides a run_path function that allows Python code
445 to execute file paths that refer to source or compiled Python files as well
446 as zipfiles, directories and other valid sys.path entries that contain a
447 __main__.py file. This allows applications that run other Python scripts to
448 support the same flexibility as the CPython command line itself.
449
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000450- Issue #7318: multiprocessing now uses a timeout when it fails to establish
451 a connection with another process, rather than looping endlessly. The
452 default timeout is 20 seconds, which should be amply sufficient for
453 local connections.
454
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000455- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
456 unpickled. This fixes crashes under Windows when trying to run
457 test_multiprocessing in verbose mode.
458
Michael Foord34c94622010-02-10 15:51:42 +0000459- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
460 argument added to the TextTestRunner constructor allowing a different result
461 class to be used without having to subclass.
462
463- Issue 7588: ``unittest.TextTestResult.getDescription`` now includes the test
464 name in failure reports even if the test has a docstring.
465
Antoine Pitrou434736a2009-11-10 18:46:01 +0000466- Issue #3001: Add a C implementation of recursive locks which is used by
467 default when instantiating a `threading.RLock` object. This makes
468 recursive locks as fast as regular non-recursive locks (previously,
469 they were slower by 10x to 15x).
470
Antoine Pitroub0872682009-11-09 16:08:16 +0000471- Issue #7282: Fix a memory leak when an RLock was used in a thread other
472 than those started through `threading.Thread` (for example, using
473 `_thread.start_new_thread()`).
474
Brett Cannone52c9192009-11-07 23:55:05 +0000475- Issue #7187: Importlib would not silence the IOError raised when trying to
476 write new bytecode when it was made read-only.
477
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000478- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
479 which are part of a reference cycle.
480
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000481- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
482 objects on 64-bit systems. Patch by Michael Broghton.
483
Antoine Pitrou03f13442009-11-02 11:36:51 +0000484- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
485 a modification is done through it. This fixes inconsistencies and test
486 failures on systems with slightly bogus mtime behaviour.
487
Gregory P. Smith50467882009-11-01 18:42:17 +0000488- Issue #7246 & Issue #7208: getpass now properly flushes input before
489 reading from stdin so that existing input does not confuse it and
490 lead to incorrect entry or an IOError. It also properly flushes it
491 afterwards to avoid the terminal echoing the input afterwards on
492 OSes such as Solaris.
493
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000494- Issue #7233: Fix a number of two-argument Decimal methods to make
495 sure that they accept an int or long as the second argument. Also
496 fix buggy handling of large arguments (those with coefficient longer
497 than the current precision) in shift and rotate.
498
Lars Gustäbel1440df22009-10-29 09:39:47 +0000499- Issue #4750: Store the basename of the original filename in the gzip FNAME
500 header as required by RFC 1952.
501
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000502- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
503 Distutils.
504
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000505- Issue #7218: Fix test_site for win32, the directory comparison was done with
506 an uppercase.
507
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000508- Issue #7205: Fix a possible deadlock when using a BZ2File object from
509 several threads at once.
510
Vinay Sajip42ead482009-10-21 20:22:14 +0000511- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
512
Mark Dickinson06bb6742009-10-20 13:38:04 +0000513- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
514 larger than emax.
515
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000516- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
517 platforms, and assorted locale fixes by Derk Drukker.
518
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000519- Issue #5833: Fix extra space character in readline completion with the
520 GNU readline library version 6.0.
521
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000522- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000523
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000524- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
525 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000526
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000527- Issue #7082: When falling back to the MIME 'name' parameter, the
528 correct place to look for it is the Content-Type header.
529
Benjamin Petersond3afada2009-10-09 21:43:09 +0000530- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
531 builtin tokenizer.
532
Mark Dickinson56df8872009-10-07 19:23:50 +0000533- Issue #7048: Force Decimal.logb to round its result when that result
534 is too large to fit in the current precision.
535
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000536- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000537 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000538
Thomas Heller69b639f2009-09-18 20:08:39 +0000539- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
540 does now always result in NULL.
541
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000542- Issue #5042: Structure sub-subclass does now initialize correctly
543 with base class positional arguments.
544
Eric Smith81fd8042009-09-18 13:23:13 +0000545- Issue #6882: Import uuid creates zombies processes.
546
Matthias Klosef6b76b02009-09-13 15:18:53 +0000547- Issue #6635: Fix profiler printing usage message.
548
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000549- Issue #6856: Add a filter keyword argument to TarFile.add().
550
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000551- Issue #6888: pdb's alias command was broken when no arguments were given.
552
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000553- Issue #6857: Default format() alignment should be '>' for Decimal
554 instances.
555
Mark Dickinson825fce32009-09-07 18:08:12 +0000556- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
557 returning NaN or raising InvalidContext. Also, fix infinite recursion
558 in long(Decimal('nan')).
559
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000560- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
561 with no type specifier.
562
Thomas Heller8b939522009-09-04 18:24:41 +0000563- Issue #6239: ctypes.c_char_p return value must return bytes.
564
Chris Withers9c33cbf2009-09-04 17:04:16 +0000565- Issue #6838: Use a list to accumulate the value instead of
566 repeatedly concatenating strings in http.client's
567 HTTPResponse._read_chunked providing a significant speed increase
568 when downloading large files servend with a Transfer-Encoding of 'chunked'.
569
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000570- Trying to import a submodule from a module that is not a package, ImportError
571 should be raised, not AttributeError.
572
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000573- When the globals past to importlib.__import__() has __package__ set to None,
574 fall back to computing what __package__ should be instead of giving up.
575
Brett Cannon6afbaef2009-08-30 19:08:58 +0000576- Raise a TypeError when the name of a module to be imported for
577 importlib.__import__ is not a string (was raising an
578 AttributeError before).
579
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000580- Allow the fromlist passed into importlib.__import__ to be any iterable.
581
Brett Cannon4d75fc12009-08-30 03:47:36 +0000582- Have importlib raise ImportError if None is found in sys.modules.
583
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000584- Issue #6054: Do not normalize stored pathnames in tarfile.
585
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000586- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
587 payloads are now ordered by integer value rather than lexicographically.
588
Guilherme Polobcd03df2009-08-18 15:35:57 +0000589- Issue #1356969: Add missing info methods in tix.HList.
590
591- Issue #1522587: New constants and methods for the tix.Grid widget.
592
593- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
594
595- Issue #1119673: Do not override tkinter.Text methods when creating a
596 ScrolledText.
597
Gregory P. Smith01099702009-08-16 18:58:46 +0000598- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
599
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000600- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
601 the xview* and yview* methods.
602
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000603- Issue #6629: Fix a data corruption issue in the new I/O library, which could
604 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
605 "wb+" mode) after having buffered a certain amount of data for reading. This
606 bug was not present in the pure Python implementation.
607
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000608- Issue #6622: Fix "local variable 'secret' referenced before
609 assignment" bug in POP3.apop.
610
Mark Dickinson45f799f2009-08-02 20:08:54 +0000611- Issue #2715: Remove remnants of Carbon.File from binhex module.
612
Mark Dickinson345adc42009-08-02 10:14:23 +0000613- Issue #6595: The Decimal constructor now allows arbitrary Unicode
614 decimal digits in input, as recommended by the standard. Previously
615 it was restricted to accepting [0-9].
616
Jack Diederich36596a32009-07-26 22:23:04 +0000617- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
618 DO/DONT correctly.
619
Senthil Kumaran67305382009-07-26 04:46:00 +0000620- Issue #1424152: Fix for http.client, urllib.request to support SSL while
621 working through proxy. Original patch by Christopher Li, changes made by
622 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000623
Brett Cannon69194272009-07-20 04:23:48 +0000624- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
625 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
626 and PyPycLoader inherit from this class and provide implementations in
627 relation to other methods required by the ABCs.
628
Brett Cannon64ef00f2009-07-20 03:19:18 +0000629- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
630 the documentation said it did even though the code in PyLoader relied on the
631 abstract method required by ResourceLoader.
632
Mark Dickinson85424c92009-07-18 14:41:42 +0000633- Issue #6431: Make Fraction type return NotImplemented when it doesn't
634 know how to handle a comparison without loss of precision. Also add
635 correct handling of infinities and nans for comparisons with float.
636
Antoine Pitrouf3637322009-08-06 21:00:37 +0000637- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000638
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000639- Issue #6358: The exit status of a command started with os.popen() was
640 reported differently than it did with python 2.x.
641
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000642- Issue #6323: The pdb debugger did not exit when running a script with a
643 syntax error.
644
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000645- Issue #3392: The subprocess communicate() method no longer fails in select()
646 when file descriptors are large; communicate() now uses poll() when possible.
647
Antoine Pitrou54923952009-07-01 14:53:06 +0000648- Issue #6369: Fix an RLE decompression bug in the binhex module.
649
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000650- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
651
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000652- The deprecated function string.maketrans has been removed.
653
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000654- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
655 sys.path.
656
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000657- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
658
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000659Extension Modules
660-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000661
Martin v. Löwis3afc62e2010-02-18 16:27:43 +0000662- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
663 msvcr100.dll is not a platform assembly anymore.
664
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000665- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
666
Mark Dickinson40714af2009-10-08 15:59:20 +0000667- Issue #7078: Set struct.__doc__ from _struct.__doc__.
668
Mark Dickinson45f992a2009-12-19 11:20:49 +0000669- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000670
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000671- Issue #6877: It is now possible to link the readline extension to the
672 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000673
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000674- Issue #6848: Fix curses module build failure on OS X 10.6.
675
Brett Cannon2f827382009-08-13 19:58:01 +0000676- Fix a segfault that could be triggered by expat with specially formed input.
677
Mark Dickinson1f268282009-07-28 17:22:36 +0000678- Issue #6561: '\d' in a regex now matches only characters with
679 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
680 matched characters with category 'No'.
681
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000682- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000683 failing due to the resize restriction in-place when the object has exported
684 buffers.
685
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000686- Issue #2389: Array objects are now pickled in a portable manner.
687
Matthias Klosea50ffe52010-01-22 01:10:19 +0000688- Expat: Fix DoS via XML document with malformed UTF-8 sequences
689 (CVE_2009_3560).
690
Martin v. Löwis95c46012009-06-28 09:36:14 +0000691Build
692-----
693
Martin v. Löwis19ed3c82010-02-15 21:45:06 +0000694- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwis7671efc2010-02-15 08:35:16 +0000695
Mark Dickinsonde508002010-01-17 21:02:55 +0000696- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
697 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
698 PyMem_Free instead. Also disable caching of powers of 5.
699
Benjamin Petersond78735d2010-01-01 16:04:23 +0000700- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
701
702- Issue #6943: Use pkg-config to find the libffi headers when the
703 --with-system-ffi flag is used.
704
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000705- Issue #7609: Add a --with-system-expat option that causes the system's expat
706 library to be used for the pyexpat module instead of the one included with
707 Python.
708
Benjamin Petersone57d6762009-12-30 03:02:03 +0000709- Issue #7589: Only build the nis module when the correct header files are
710 found.
711
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000712- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000713
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000714- Issue #5792: Extend the short float repr support to x86 systems using
715 icc or suncc.
716
Mark Dickinsona25b1312009-10-31 10:18:44 +0000717- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
718 compiles correctly under gcc on x86-64. This fixes a reported
719 problem with the --with-tsc build on x86-64.
720
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000721- Issue #6802: Fix build issues on MacOSX 10.6
722
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000723- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
724
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000725- Issue 4601: 'make install' did not set the appropriate permissions on
726 directories.
727
Martin v. Löwis95c46012009-06-28 09:36:14 +0000728- Issue 5390: Add uninstall icon independent of whether file
729 extensions are installed.
730
Ronald Oussoren585c1732009-12-24 14:21:55 +0000731- Issue #7541: when using ``python-config`` with a framework install the compiler might
732 use the wrong library.
733
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000734Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000735------------
736
Barry Warsaw615368f2010-02-05 19:12:30 +0000737- Updating `Using Python` documentation to include description of CPython's
738 -J and -X options.
739
Brett Cannon757df6e2009-08-30 04:00:12 +0000740- Document that importing a module that has None in sys.modules triggers an
741 ImportError.
742
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000743- Issue #6556: Fixed the Distutils configuration files location explanation
744 for Windows.
Matthias Klosec8b16f82010-01-31 16:14:37 +0000745
746- Update python manual page (options -B, -O0, -s, environment variables
747 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000748
Brett Cannonb49c70c2009-07-15 04:08:33 +0000749Tests
750-----
751
Ezio Melotti184bdfb2010-02-18 09:37:05 +0000752- Issue #7712: test.support gained a new `temp_cwd` context manager which is
753 now also used by regrtest to run all the tests in a temporary directory.
754 The original CWD is saved in `support.SAVEDCWD`.
755 Thanks to Florent Xicluna who helped with the patch.
756
Mark Dickinsonedff7af2010-02-13 18:34:53 +0000757- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
758 test_capi (only seen so far on platforms where the curses module
759 wasn't built), due to an uncleared exception.
760
R. David Murraye9e95932010-02-06 05:00:15 +0000761- issue #7728: test_timeout was changed to use test_support.bind_port
762 instead of a hard coded port.
763
R. David Murray445448c2009-12-20 17:28:31 +0000764- Issue #7376: instead of running a self-test (which was failing) when called
765 with no arguments, doctest.py now gives a usage message.
766
R. David Murrayef1992b2009-12-16 15:19:27 +0000767- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
768
R. David Murray596da442009-12-14 23:06:11 +0000769- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000770 instead of a hardcoded port number in test_rapid_restart.
771
R. David Murrayba311052009-12-04 00:09:14 +0000772- Issue #7431: use TESTFN in test_linecache instead of trying to create a
773 file in the Lib/test directory, which might be read-only for the
774 user running the tests.
775
R. David Murray35768ad2009-11-15 00:23:21 +0000776- Issue #7324: add a sanity check to regrtest argument parsing to
777 catch the case of an option with no handler.
778
R. David Murray7dc72cc2009-11-14 16:13:02 +0000779- Issue #7312: Add a -F flag to run the selected tests in a loop until
780 a test fails. Can be combined with -j.
781
Antoine Pitrou060cee22009-11-13 16:29:04 +0000782- Issue #6551: test_zipimport could import and then destroy some modules of
783 the encodings package, which would make other tests fail further down
784 the road because the internally cached encoders and decoders would point
785 to empty global variables.
786
Antoine Pitrou941ee882009-11-11 20:59:38 +0000787- Issue #7295: Do not use a hardcoded file name in test_tarfile.
788
Antoine Pitrou557934f2009-11-06 22:41:14 +0000789- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
790 primitives such as Lock, RLock, Condition, Event and Semaphore.
791
Brett Cannoncfed0292009-11-05 01:26:57 +0000792- Issue #7248 (part 2): Use a unique temporary directory for importlib source
793 tests instead of tempfile.tempdir. This prevents the tests from sharing state
794 between concurrent executions on the same system.
795
Brett Cannon0ae45112009-11-05 01:17:22 +0000796- Issue #7248: In importlib.test.source.util a try/finally block did not make
797 sure that some referenced objects actually were created in the block before
798 calling methods on the object.
799
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000800- Issue #7222: Make thread "reaping" more reliable so that reference
801 leak-chasing test runs give sensible results. The previous method of
802 reaping threads could return successfully while some Thread objects were
803 still referenced. This also introduces a new private function:
804 :func:`_thread._count()`.
805
R. David Murray27144602009-10-19 15:26:16 +0000806- Issue #7151: fixed regrtest -j so that output to stderr from a test no
807 longer runs the risk of causing the worker thread to fail.
808
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000809- Issue #7055: test___all__ now greedily detects all modules which have an
810 __all__ attribute, rather than using a hardcoded and incomplete list.
811
R. David Murray0bc11ae2009-10-18 22:18:17 +0000812- Issue #7058: Added save/restore for things like sys.argv and cwd to
813 runtest_inner in regrtest, with warnings if the called test modifies them,
814 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000815
Mark Dickinson2e304402009-10-04 18:43:54 +0000816- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
817
Brett Cannon3c273842009-07-20 00:14:29 +0000818- Fixed tests in importlib.test.source.test_abc_loader that were masking
819 the proper exceptions that should be raised for missing or improper code
820 object bytecode.
821
Brett Cannonb49c70c2009-07-15 04:08:33 +0000822- Removed importlib's custom test discovery code and switched to
823 unittest.TestLoader.discover().
824
Antoine Pitroua69ba652010-01-18 21:20:53 +0000825Tools/Demos
826-----------
827
828- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
829 added to the `Tools/` directory. They were previously living in the
830 sandbox.
831
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000832
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000833What's New in Python 3.1?
834=========================
835
836*Release date: 27-June-2009*
837
838Core and Builtins
839-----------------
840
Mark Dickinsonad195562009-06-24 19:01:32 +0000841- Issue #6334: Fix bug in range length calculation for ranges with
842 large arguments.
843
Raymond Hettinger159eac92009-06-23 20:38:54 +0000844- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
845 because it wasn't recognized as a sequence).
846
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000847Library
848-------
849
Georg Brandld07ac642009-08-13 07:50:57 +0000850- Issue #6126: Fixed pdb command-line usage.
851
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000852- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000853
Facundo Batista10706e22009-06-19 20:34:30 +0000854- Issue #6274: Fixed possible file descriptors leak in subprocess.py
855
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000856- Accessing io.StringIO.buffer now raises an AttributeError instead of
857 io.UnsupportedOperation.
858
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000859- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000860 (On Unix)
861
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000862- Issue #1202: zipfile module would cause a struct.error when attempting to
863 store files with a CRC32 > 2**31-1.
864
Matthias Kloseab2b7552009-06-22 13:05:52 +0000865Extension Modules
866-----------------
867
868- Issue #5590: Remove unused global variable in pyexpat extension.
869
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000870
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000871What's New in Python 3.1 Release Candidate 2?
872=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000873
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000874*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000875
876Core and Builtins
877-----------------
878
Raymond Hettinger94f55832009-06-12 18:40:16 +0000879- Fixed SystemError triggered by "range([], 1, -1)".
880
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000881- Issue #5924: On Windows, a large PYTHONPATH environment variable
882 (more than 255 characters) would be completely ignored.
883
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000884- Issue #4547: When debugging a very large function, it was not always
885 possible to update the lineno attribute of the current frame.
886
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000887- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000888 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000889
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000890Library
891-------
892
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000893- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000894 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000895 Popen. Tested under win32 to build the py-postgresql project.
896
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000897- Issue #6258: Support AMD64 in bdist_msi.
898
R. David Murray58641de2009-06-12 15:33:19 +0000899- Issue #6195: fixed doctest to no longer try to read 'source' data from
900 binary files.
901
Vinay Sajipaffbd872009-06-11 10:11:47 +0000902- Issue #5262: Fixed bug in next rollover time computation in
903 TimedRotatingFileHandler.
904
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000905- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
906 errors property. Additionally, the errors and encoding properties of StringIO
907 are always None now.
908
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000909- Issue #6137: The pickle module now translates module names when loading
910 or dumping pickles with a 2.x-compatible protocol, in order to make data
911 sharing and migration easier. This behaviour can be disabled using the
912 new `fix_imports` optional argument.
913
Raymond Hettinger40925d22009-06-04 18:32:39 +0000914- Removed the ipaddr module.
915
Georg Brandlb54d8012009-06-04 09:11:51 +0000916- Issue #3613: base64.{encode,decode}string are now called
917 base64.{encode,decode}bytes which reflects what type they accept and return.
918 The old names are still there as deprecated aliases.
919
Georg Brandl317185a2009-06-04 09:00:56 +0000920- Issue #5767: Remove sgmlop support from xmlrpc.client.
921
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000922- Issue #6150: Fix test_unicode on wide-unicode builds.
923
Antoine Pitrouc06de472009-05-30 21:04:26 +0000924- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
925 parameters.
926
Martin v. Löwis79b13872009-06-01 04:13:14 +0000927Windows
928-------
929
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000930- Issue #6221: Delete test registry key before running the test.
931
Martin v. Löwis79b13872009-06-01 04:13:14 +0000932- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
933
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000934C-API
935-----
936
937- Issue #5735: Python compiled with --with-pydebug should throw an
938 ImportError when trying to import modules compiled without
939 --with-pydebug, and vice-versa.
940
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000941
Brett Cannonc6d936e2009-06-07 20:09:53 +0000942Build
943-----
944
945- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
946 added LIBS to OS X framework builds.
947
Ronald Oussoren99aab652009-06-08 21:22:57 +0000948- Issue #5809: Specifying both --enable-framework and --enable-shared is
949 an error. Configure now explicity tells you about this.
950
951
Brett Cannonc6d936e2009-06-07 20:09:53 +0000952
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000953What's New in Python 3.1 release candidate 1?
954=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000955
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000956*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000957
958Core and Builtins
959-----------------
960
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000961- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
962 of the command line.
963
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000964- Issue #6012: Add cleanup support to O& argument parsing.
965
Eric Smith41669ca2009-05-23 14:23:22 +0000966- Issue #6089: Fixed str.format with certain invalid field specifiers
967 that would raise SystemError.
968
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000969- Issue #5982: staticmethod and classmethod now expose the wrapped
970 function with __func__.
971
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000972- Added support for multiple context managers in the same with-statement.
973 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000974
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000975- Issue #5829: complex("1e500") no longer raises OverflowError. This
976 makes it consistent with float("1e500") and interpretation of real
977 and imaginary literals.
978
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000979- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
980
R. David Murraydd226ea2009-05-13 12:27:21 +0000981- Issue #5994: the marshal module now has docstrings.
982
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000983- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
984 (1) inf and nan strings with trailing whitespace were incorrectly
985 rejected; (2) parsing of strings representing infinities and nans
986 was locale aware; and (3) the interpretation of fromhex('-nan')
987 didn't match that of float('-nan').
988
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000989Library
990-------
991
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000992- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
993
R. David Murrayfb123912009-05-28 18:19:00 +0000994- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
995
R. David Murray1f1b9d32009-05-27 20:56:59 +0000996- Issue #6121: pydoc now ignores leading and trailing spaces in the
997 argument to the 'help' function.
998
Georg Brandlfaf41492009-05-26 18:31:11 +0000999- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
1000 arguments for strings with a space in them.
1001
Raymond Hettinger089ba7f2009-05-27 00:38:24 +00001002- collections.namedtuple() was not working with the following field
1003 names: cls, self, tuple, itemgetter, and property.
1004
Benjamin Peterson14a3dd72009-05-25 00:51:58 +00001005- In unittest, using a skipping decorator on a class is now equivalent to
1006 skipping every test on the class. The ClassTestSuite class has been removed.
1007
Martin v. Löwis70ccd162009-05-24 19:47:22 +00001008- Issue #6050: Don't fail extracting a directory from a zipfile if
1009 the directory already exists.
1010
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001011- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1012 than an int, which makes some operations possible under 64-bit Linux (e.g.
1013 DN_MULTISHOT with F_NOTIFY).
1014
Antoine Pitrou716c4442009-05-23 19:04:03 +00001015- Issue #5761: Add the name of the underlying file to the repr() of various
1016 IO objects.
1017
R. David Murraycaa27b72009-05-23 18:49:56 +00001018- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1019 by Musashi Tamura, tests by Marcin Bachry.
1020
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001021- Issue #1983: Fix functions taking or returning a process identifier to use
1022 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1023 a process identifier type wider than the standard C integer type.
1024
R. David Murray87e20742009-05-23 01:30:26 +00001025- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1026 Patch by Farhan Ahmad, test by Marcin Bachry.
1027
Antoine Pitrou6e610062009-05-15 17:04:50 +00001028- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1029 deepcopy()ing.
1030
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001031- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1032
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001033- Issue #5918: Fix a crash in the parser module.
1034
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001035- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1036
Antoine Pitroue4501852009-05-14 18:55:55 +00001037- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1038 library. This means, for example, that opening an UTF-16 text file in
1039 append mode doesn't add a BOM at the end of the file if the file isn't
1040 empty.
1041
R. David Murray74b89242009-05-13 17:33:03 +00001042- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1043 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1044 corrects a pydoc regression.
1045
R. David Murray99352742009-05-07 18:24:38 +00001046- Issue 5955: aifc's close method did not close the file it wrapped,
1047 now it does. This also means getfp method now returns the real fp.
1048
Benjamin Peterson932073a2009-05-23 16:14:33 +00001049Installation
1050------------
1051
1052- Issue #6047: fullinstall has been removed because Python 3's executable will
1053 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001054
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001055- Lib/smtpd.py is no longer installed as a script.
1056
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001057Extension Modules
1058-----------------
1059
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001060- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001061
Martin v. Löwise23c8682009-05-29 16:01:34 +00001062- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1063
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001064- Issue #6093: Fix off-by-one error in locale.strxfrm.
1065
Benjamin Peterson744af442009-05-23 18:51:49 +00001066- The _functools and _locale modules are now built into the libpython shared
1067 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001068
Antoine Pitrou20327222009-05-24 20:39:11 +00001069Build
1070-----
1071
1072- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1073 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1074 Clinton Roy.
1075
Brett Cannon1262e7c2009-05-11 01:47:11 +00001076Tests
1077-----
1078
1079- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1080 tests on darwin even when the OS was installed on a case-sensitive
1081 filesystem. Also fixed tests that should not be run when
1082 sys.dont_write_bytecode is true.
1083
1084
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001085What's New in Python 3.1 beta 1?
1086================================
1087
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001088*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001089
1090Core and Builtins
1091-----------------
1092
Mark Dickinson865e01a2009-05-07 16:37:01 +00001093- Issue #5914: Add new C API function PyOS_string_to_double, and
1094 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1095
Eric Smith741191f2009-05-06 13:08:15 +00001096- Issue #3382: float.__format__, complex.__format__, and %-formatting
1097 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1098 affects nan -> NAN and inf -> INF.
1099
Mark Hammond5a607a32009-05-06 08:04:54 +00001100- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1101 in all operations, including splitdrive, split, etc. splitunc() now issues
1102 a PendingDeprecation warning.
1103
Eric Smith63376222009-05-05 14:04:18 +00001104- Issue #5920: For float.__format__, change the behavior with the
1105 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1106 to be like 'g' but with at least one decimal point and with a
1107 default precision of 12. Previously, the behavior the same but with
1108 a default precision of 6. This more closely matches str(), and
1109 reduces surprises when adding alignment flags to the empty
1110 presentation type. This also affects the new complex.__format__ in
1111 the same way.
1112
Martin v. Löwis011e8422009-05-05 04:43:17 +00001113- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1114
R. David Murrayb18500d2009-05-04 22:59:07 +00001115- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1116 shadowed by classtype's, even if it was None. property now
1117 inserts the __doc__ into the subclass instance __dict__.
1118
Antoine Pitrou244651a2009-05-04 18:56:13 +00001119- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1120 sequences. Patch by Nick Barnes and Victor Stinner.
1121
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001122- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001123
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001124- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1125 received a new method, detach(). detach() disconnects the underlying stream
1126 from the buffer or text IO and returns it.
1127
Mark Dickinson33841c32009-05-01 15:37:04 +00001128- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1129 floats with absolute value over 1e50. Also remove length
1130 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1131 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001132
Eric Smith741191f2009-05-06 13:08:15 +00001133- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001134 format(complex(1, 2./3), '.5') now produces a sensible result.
1135
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001136- Issue #5864: Fix empty format code formatting for floats so that it
1137 never gives more than the requested number of significant digits.
1138
Eric Smith6dc46f52009-04-27 20:39:49 +00001139- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1140 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1141
Eric Smithcc32a112009-04-26 21:35:14 +00001142- Issue #5835: Deprecate PyOS_ascii_formatd.
1143
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001144- Issue #4971: Fix titlecase for characters that are their own
1145 titlecase, but not their own uppercase.
1146
Benjamin Peterson193152c2009-04-25 01:08:45 +00001147- Issue #5283: Setting __class__ in __del__ caused a segfault.
1148
Mark Dickinsonad476da2009-04-23 19:14:16 +00001149- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1150 z involves nans, infs or negative zeros.
1151
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001152- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001153
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001154- Issue #1869 (and many duplicates): make round(x, n) correctly
1155 rounded for a float x, by using the decimal <-> binary conversions
1156 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1157 consistently agrees with format(x, '.2f').
1158
Benjamin Petersonae937c02009-04-18 20:54:08 +00001159- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1160 some builtin types.
1161
Eric Smith0923d1d2009-04-16 20:16:10 +00001162- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1163
Eric Smith35e84722009-04-16 20:21:28 +00001164- Issue #5515: str.format() type 'n' combined with commas and leading
1165 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001166
1167- Implement PEP 378, Format Specifier for Thousands Separator, for
1168 floats.
1169
Mark Dickinson3370cce2009-04-17 22:40:53 +00001170- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001171 1e11, not 1e12. This avoids printing 13 significant digits in
1172 situations where only 12 of them are correct. Example problem
1173 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1174 long time.)
1175
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001176- Issue #1580: On most platforms, use a 'short' float repr: for a
1177 finite float x, repr(x) now outputs a string based on the shortest
1178 sequence of decimal digits that rounds to x. Previous behaviour was
1179 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001180 Another minor difference is that the new repr switches to
1181 exponential notation at 1e16 instead of the previous 1e17; this
1182 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001183
1184 There's a new sys attribute sys.float_repr_style, which takes
1185 the value 'short' to indicate that we're using short float repr,
1186 and 'legacy' if the short float repr isn't available for one
1187 reason or another.
1188
1189 The float repr change involves incorporating David Gay's 'perfect
1190 rounding' code into the Python core (it's in Python/dtoa.c). As a
1191 secondary consequence, all string-to-float and float-to-string
1192 conversions (including all float formatting operations) will be
1193 correctly rounded on these platforms.
1194
1195 See issue 1580 discussions for details of platforms for which
1196 this change does not apply.
1197
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001198- Issue #5759: float() didn't call __float__ on str subclasses.
1199
Georg Brandlabc38772009-04-12 15:51:51 +00001200- The string.maketrans() function is deprecated; there is a new static method
1201 maketrans() on the bytes and bytearray classes. This removes confusion about
1202 the types string.maketrans() is supposed to work with, and mirrors the
1203 methods available on the str class.
1204
R. David Murraydc6da8a2009-04-09 22:16:43 +00001205- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1206 its clarity and its speed.
1207
Matthias Klose091c7b12009-04-07 13:24:27 +00001208- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1209 to avoid compiler warnings.
1210
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001211- Issue #3739: The unicode-internal encoder now reports the number of characters
1212 consumed like any other encoder (instead of the number of bytes).
1213
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001214Installation
1215------------
1216
1217- Issue #5756: Install idle and pydoc with a 3 suffix.
1218
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001219Library
1220-------
1221
Martin v. Löwis403117a2009-05-24 19:19:17 +00001222- Issue #5311: bdist_msi can now build packages that do not depend on a
1223 specific Python version.
1224
Raymond Hettingereb816952009-05-29 01:22:18 +00001225- Issue #5150: IDLE's format menu now has an option to strip trailing
1226 whitespace.
1227
Vinay Sajipaffbd872009-06-11 10:11:47 +00001228- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001229 the right type checkings anymore.
1230
Thomas Heller00cfc372009-05-05 19:04:40 +00001231- Issue #4875: On win32, ctypes.util.find_library does no longer
1232 return directories.
1233
Georg Brandl243ad662009-05-05 09:00:19 +00001234- Issue #5142: Add the ability to skip modules while stepping to pdb.
1235
Georg Brandl991f9202009-05-05 08:31:54 +00001236- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1237 looking for files given by a relative filename.
1238
Georg Brandleaa84ef2009-05-05 08:14:33 +00001239- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1240 turtle demos in Demo/turtle.
1241
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001242- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1243 extracting a file to the root directory.
1244
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001245- Issue #5913: os.listdir() should fail for empty path on windows.
1246
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001247- Issue #5084: unpickling now interns the attribute names of pickled objects,
1248 saving memory and avoiding growth in size of subsequent pickles. Proposal
1249 and original patch by Jake McGuire.
1250
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001251- The json module now works exclusively with str and not bytes.
1252
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001253- Issue #3959: The ipaddr module has been added to the standard library.
1254 Contributed by Google.
1255
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001256- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1257 error when a named pipe is encountered, rather than blocking infinitely.
1258
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001259- Issue #5857: tokenize.tokenize() now returns named tuples.
1260
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001261- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1262
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001263- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1264 string is already in normalized form, by performing a quick check beforehand.
1265 Original patch by Rauli Ruohonen.
1266
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001267- Issue #5853: calling a function of the mimetypes module from several threads
1268 at once could hit the recursion limit if the mimetypes database hadn't been
1269 initialized before.
1270
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001271- Issue #5854: Updated __all__ to include some missing names and remove some
1272 names which should not be exported.
1273
Thomas Heller34596a92009-04-24 20:50:00 +00001274- Issue #3102: All global symbols that the _ctypes extension defines
1275 are now prefixed with 'Py' or '_ctypes'.
1276
1277- Issue #5041: ctypes does now allow pickling wide character.
1278
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001279- Issue #5812: For the two-argument form of the Fraction constructor,
1280 Fraction(m, n), m and n are permitted to be arbitrary Rational
1281 instances.
1282
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001283- Issue #5812: Fraction('1e6') is valid: more generally, any string
1284 that's valid for float() is now valid for Fraction(), with the
1285 exception of strings representing NaNs and infinities.
1286
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001287- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1288 bugs. Patch by Brian Quinlan.
1289
R. David Murray9e94ddf2009-04-13 17:06:33 +00001290- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1291 results in a handle_expt_event call, not handle_read_event, and POLLERR
1292 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1293 dispatcher now has an 'ignore_log_types' attribute for suppressing
1294 log messages, which is set to 'warning' by default.
1295
Matthias Klosea3d29e82009-04-07 13:13:10 +00001296- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1297 new arguments introduced in 2.5.
1298
Walter Dörwald1b08b302009-04-25 14:13:56 +00001299- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1300 makeunicodedata.py and regenerated the Unicode database (This fixes
1301 u'\u1d79'.lower() == '\x00').
1302
Matthias Klose535336f2009-04-07 13:49:45 +00001303Extension Modules
1304-----------------
1305
Benjamin Petersone04b6272009-05-04 22:25:21 +00001306- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1307 pwd.
1308
Mark Dickinsonea835e72009-04-19 20:40:33 +00001309- Issue #5463: In struct module, remove deprecated float coercion
1310 for integer type codes: struct.pack('L', 0.3) should now raise
1311 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1312 The version number has been bumped to 0.3.
1313
Matthias Klose535336f2009-04-07 13:49:45 +00001314- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1315 using Berkley-DB.
1316
Nick Coghlan47384702009-04-22 16:13:36 +00001317Tests
1318-----
1319
1320- Issue #5354: New test support function import_fresh_module() makes
1321 it easy to import both normal and optimised versions of modules.
1322 test_heapq and test_warnings have been adjusted to use it, tests for
1323 other modules with both C and Python implementations in the stdlib
1324 can be adjusted to use it over time.
1325
Walter Dörwald4ba80132009-04-25 12:48:43 +00001326- Issue #5837: Certain sequences of calls to set() and unset() for
1327 support.EnvironmentVarGuard objects restored the environment variables
1328 incorrectly on __exit__.
1329
Benjamin Petersonb173f782009-05-05 22:31:58 +00001330C-API
1331-----
1332
1333- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1334
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001335
Benjamin Petersond1735892009-03-07 18:46:21 +00001336What's New in Python 3.1 alpha 2?
1337=================================
1338
Benjamin Peterson88f14352009-04-04 21:06:52 +00001339*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001340
1341Core and Builtins
1342-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001343
Eric Smith1e1d7d22009-04-03 22:25:33 +00001344- Implement PEP 378, Format Specifier for Thousands Separator, for
1345 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001346
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001347- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1348
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001349- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1350 byte, and the 'C' code only accepts a unicode character.
1351
Georg Brandl406b3d82009-04-11 21:24:37 +00001352- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1353 when hitting the recursion limit under certain circumstances.
1354
Brett Cannon0759dd62009-04-01 18:13:07 +00001355- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1356
Georg Brandlab6f2f62009-03-31 04:16:10 +00001357- Fix a segfault when running test_exceptions with coverage, caused by
1358 insufficient checks in accessors of Exception.__context__.
1359
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001360- Issue #5604: non-ASCII characters in module name passed to
1361 imp.find_module() were converted to UTF-8 while the path is
1362 converted to the default filesystem encoding, causing nonsense.
1363
Benjamin Peterson09832742009-03-26 17:15:46 +00001364- Issue #5126: str.isprintable() returned False for space characters.
1365
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001366- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1367 the end sys.path, for compatibility with the system install of Python.
1368
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001369- Issue #4688: Add a heuristic so that tuples and dicts containing only
1370 untrackable objects are not tracked by the garbage collector. This can
1371 reduce the size of collections and therefore the garbage collection overhead
1372 on long-running programs, depending on their particular use of datatypes.
1373
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001374- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1375 improve its performance. Long divisions and remainder operations
1376 are now between 50% and 150% faster.
1377
Mark Dickinsonbd792642009-03-18 20:06:12 +00001378- Issue #4258: Make it possible to use base 2**30 instead of base
1379 2**15 for the internal representation of integers, for performance
1380 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1381 --enable-big-digits option to configure, which overrides the
1382 default. Add sys.int_info structseq to provide information about
1383 the internal format.
1384
Mark Dickinson081dfee2009-03-18 14:47:41 +00001385- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1386 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1387 and sizeof(Py_UNICODE) == 2.
1388
Eric Smith8ec90442009-03-14 12:29:34 +00001389- Issue #5237: Allow auto-numbered fields in str.format(). For
1390 example: '{} {}'.format(1, 2) == '1 2'.
1391
Antoine Pitrou652e7072009-03-13 19:25:20 +00001392- Issue #5392: when a very low recursion limit was set, the interpreter would
1393 abort with a fatal error after the recursion limit was hit twice.
1394
Matthias Klose042f1332009-04-04 14:32:42 +00001395- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1396 short file names.
1397
Benjamin Petersond1735892009-03-07 18:46:21 +00001398Library
1399-------
1400
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001401- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001402 mailbox.MH.get_message().
1403
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001404- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1405 error substitutions from non-strict codec error callbacks in
1406 incrementalencoder and StreamWriter.
1407
Georg Brandl33c28812009-04-01 23:07:29 +00001408- Issue #5656: Fix the coverage reporting when running the test suite with
1409 the -T argument.
1410
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001411- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1412
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001413- Issue #5624: Fix the _winreg module name still used in several modules.
1414
Benjamin Petersona1b49012009-03-31 23:11:32 +00001415- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1416
Jesse Nollera9314042009-03-31 22:36:44 +00001417- Issue #5619: Multiprocessing children disobey the debug flag and causes
1418 popups on windows buildbots. Patch applied to work around this issue.
1419
Jesse Noller32d68c22009-03-31 18:48:42 +00001420- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1421
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001422- Issue #5387: Fixed mmap.move crash by integer overflow.
1423
Jesse Nollerf8d00852009-03-31 03:25:07 +00001424- Issue #5261: Patch multiprocessing's semaphore.c to support context
1425 manager use: "with multiprocessing.Lock()" works now.
1426
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001427- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1428 bytes already but the failure was non-obvious.
1429
Jesse Noller7af4ef82009-03-30 16:47:15 +00001430- Issue #5177: Multiprocessing's SocketListener class now uses
1431 socket.SO_REUSEADDR on all connections so that the user no longer needs
1432 to wait 120 seconds for the socket to expire.
1433
Benjamin Peterson48e24782009-03-29 13:02:52 +00001434- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1435
Antoine Pitrou66994e12009-03-29 00:45:26 +00001436- Issue #1174606: Calling read() without arguments of an unbounded file
1437 (typically /dev/zero under Unix) could crash the interpreter.
1438
Benjamin Peterson59406a92009-03-26 17:10:29 +00001439- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1440 io.BufferedRandom have been deprecated for removal in Python 3.2.
1441
Lars Gustäbel42e00912009-03-22 20:34:29 +00001442- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1443 forever on incomplete input. That caused tarfile.open() to hang when used
1444 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1445 partial bzip2 compressed data.
1446
Mark Dickinson79f52032009-03-17 23:12:51 +00001447- Issue #2110: Add support for thousands separator and 'n' type
1448 specifier to Decimal.__format__
1449
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001450- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1451 '>' alignment characters.
1452
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001453- The error detection code in FileIO.close() could fail to reflect the `errno`
1454 value, and report it as -1 instead.
1455
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001456- Issue #5016: FileIO.seekable() could return False if the file position
1457 was negative when truncated to a C int. Patch by Victor Stinner.
1458
Mark Dickinsonae681df2009-03-21 10:26:31 +00001459Extension Modules
1460-----------------
1461
Benjamin Petersone099b372009-04-04 17:09:35 +00001462- Issue #5391: mmap now deals exclusively with bytes.
1463
Mark Dickinsonae681df2009-03-21 10:26:31 +00001464- Issue #5463: In struct module, remove deprecated overflow wrapping
1465 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001466 struct.error instead of returning b'\xff\xff\xff\xff'. The
1467 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1468 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001469
Benjamin Petersond1735892009-03-07 18:46:21 +00001470
Benjamin Petersona58a6262009-03-07 16:34:40 +00001471What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001472================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001473
Benjamin Petersona58a6262009-03-07 16:34:40 +00001474*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001475
1476Core and Builtins
1477-----------------
1478
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001479- The io module has been reimplemented in C for speed.
1480
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001481- Give dict views an informative __repr__.
1482
Eric Smith5e5c0db2009-02-20 14:25:03 +00001483- Issue #5247: Improve error message when unknown format codes are
1484 used when using str.format() with str, int, and float arguments.
1485
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001486- Issue #5249: time.strftime returned malformed string when format string
1487 contained non ascii character on windows.
1488
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001489- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1490 source has already been decoded into str.
1491
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001492- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1493 rotating the object pointer by 4 bits to the right.
1494
Mark Dickinson87ec0852009-02-09 17:15:59 +00001495- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1496 it now forces its argument to double before testing for infinity.
1497
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001498- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1499 returns a non-number type.
1500
Benjamin Peterson87618552009-02-08 15:00:52 +00001501- Issue #5182: Removed memoryview.__str__.
1502
Mark Dickinsonc008a172009-02-01 13:59:22 +00001503- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1504 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001505 the type definition cmpfunc. The tp_compare slot has been renamed
1506 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001507
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001508- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001509 were suppressing all exceptions. These include list() and bytearray().
1510
Mark Dickinson1124e712009-01-28 21:25:58 +00001511- Issue #4707: round(x, n) now returns an integer if x is an integer.
1512 Previously it returned a float.
1513
Antoine Pitroub52ec782009-01-25 16:34:23 +00001514- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1515 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1516 evaluation loop is compiled with a new dispatch mechanism which gives
1517 speedups of up to 20%, depending on the system, on various benchmarks.
1518
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001519- Issue #4874: Most builtin decoders now reject unicode input.
1520
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001521- Issue #4842: Don't allow trailing 'L' when constructing an integer
1522 from a string.
1523
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001524- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1525
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001526- Issue #4838: When a module is deallocated, free the memory backing the
1527 optional module state data.
1528
Mark Dickinson8055afd2009-01-17 10:04:45 +00001529- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1530 type to (void *).
1531
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001532- Issue #4935: The overflow checking code in the expandtabs() method common
1533 to str, bytes and bytearray could be optimized away by the compiler, letting
1534 the interpreter segfault instead of raising an error.
1535
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001536- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1537 __next__ method.
1538
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001539- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1540 function no longer attempt to call the __long__ slot to convert an object
1541 to an integer. Only the __int__ and __trunc__ slots are examined.
1542
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001543- Issue #4893: Use NT threading on CE.
1544
Martin v. Löwisec59d042009-01-12 07:59:10 +00001545- Issue #4915: Port sysmodule to Windows CE.
1546
Antoine Pitrouab868312009-01-10 15:40:25 +00001547- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1548 common cases are optimized thanks to a dedicated fast path and a moderate
1549 amount of loop unrolling.
1550
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001551- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1552 collecting the oldest generation) so that allocating lots of objects without
1553 destroying them does not show quadratic performance. Based on a proposal by
1554 Martin von Löwis at
1555 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1556
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001557- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001558 having been closed (for instance, a read() call could return some
1559 previously buffered data). Patch by Dmitry Vasiliev.
1560
Antoine Pitrou05608432009-01-09 18:53:14 +00001561- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1562 flag to work properly. Furthermore, when specifying -u, the text stdout
1563 and stderr streams have line-by-line buffering enabled (the default being
1564 to buffer arbitrary chunks of data).
1565
Raymond Hettinger35631532009-01-09 03:58:09 +00001566- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1567 instead of ints (reducing its size from 4 to 8 times thereby reducing
1568 Python's overall memory).
1569
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001570- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1571 an existing .py counterpart, override the co_filename attributes of all
1572 code objects if the original filename is obsolete (which can happen if the
1573 file has been renamed, moved, or if it is accessed through different paths).
1574 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1575
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001576- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1577 one byte. Also fixes the meaning of len() so that it returns the number of
1578 items, rather than the size in bytes.
1579
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001580- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1581
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001582- Issue #4747: When the terminal does not use utf-8, executing a script with
1583 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1584
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001585- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001586 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001587
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001588- Issue #3680: Reference cycles created through a dict, set or deque iterator
1589 did not get collected.
1590
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001591- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1592 where the tp_hash and tp_dict slots are both NULL.
1593
Georg Brandlccc47b62008-12-28 11:44:14 +00001594- Issue #4759: None is now allowed as the first argument of
1595 bytearray.translate(). It was always allowed for bytes.translate().
1596
Skip Montanaro80072cb2008-12-23 03:51:14 +00001597- Added test case to ensure attempts to read from a file opened for writing
1598 fail.
1599
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001600- Issue #3106: Speedup some comparisons (str/str and int/int).
1601
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001602- Issue #2183: Simplify and optimize bytecode for list, dict and set
1603 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1604
Antoine Pitrou621601a2008-12-17 23:18:19 +00001605- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1606 print elapsed times, not only when some objects are uncollectable /
1607 unreachable. Original patch by Neil Schemenauer.
1608
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001609- Issue #3439: Add a bit_length method to int.
1610
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001611- Issue #2173: When getting device encoding, check that return value of
1612 nl_langinfo is not the empty string. This was causing silent build
1613 failures on OS X.
1614
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001615- Issue #4597: Fixed several opcodes that weren't always propagating
1616 exceptions.
1617
1618- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001619 context manager returns a value that cannot be converted to a bool.
1620
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001621- Issue #4445: Replace "sizeof(PyBytesObject)" with
1622 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1623 bytes instances. On a typical machine this saves 3 bytes of memory
1624 (on average) per allocation of a bytes instance.
1625
Christian Heimesa872de52008-12-05 08:26:55 +00001626- Issue #4533: File read operation was dreadfully slow due to a slowly
1627 growing read buffer. Fixed by using the same growth rate algorithm as
1628 Python 2.x.
1629
Antoine Pitrou5504e892008-12-06 21:27:53 +00001630- Issue #4509: Various issues surrounding resize of bytearray objects to
1631 which there are buffer exports (e.g. memoryview instances).
1632
Georg Brandlf9734072008-12-07 15:30:06 +00001633- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1634 method on file objects with closefd=False. The file descriptor is still
1635 kept open but the file object behaves like a closed file. The ``FileIO``
1636 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001637
Antoine Pitroubc420402008-12-07 20:14:49 +00001638- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1639 larger than 1.
1640
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001641- Issue #4748: Lambda generators no longer return a value.
1642
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001643- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1644
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001645- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1646 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1647 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1648 of using the replace error handler in PyUnicode_DecodeUTF8().
1649
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001650Library
1651-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001652
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001653- Issue #7071: byte-compilation in Distutils is now done with respect to
1654 sys.dont_write_bytecode.
1655
Tarek Ziadé978cca62009-10-24 13:38:27 +00001656- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1657 raised. Initial patch by Ezio Melotti.
1658
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001659- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001660 Distutils.
1661
Tarek Ziadé31d46072009-09-21 13:55:19 +00001662- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1663
Tarek Ziadé165581c2009-09-09 08:48:07 +00001664- Issue #6163: Fixed HP-UX runtime library dir options in
1665 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1666 Michael Haubenwallner.
1667
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001668- Issue #6693: New functions in site.py to get user/global site packages paths.
1669
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001670- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1671 opening an empty or very small file.
1672
1673- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001674 behavior is similar when used with -O.
1675
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001676- unittest has been split up into a package. All old names should still work.
1677
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001678- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1679 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1680 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1681 for the obsolete get_versions() functions.
1682
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001683- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1684
1685- Issue #6314: logging: Extra checks on the "level" argument in more places.
1686
1687- Issue #2622: Fixed an ImportError when importing email.messsage from a
1688 standalone application built with py2exe or py2app.
1689
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001690- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001691
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001692- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001693 attribute.
1694
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001695- Issue #6413: Fixed the log level in distutils.dist for announce.
1696
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001697- Issue #6403: Fixed package path usage in build_ext.
1698
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001699- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1700 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1701 descriptor errors
1702
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001703- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001704 extension in a subdirectory if the extension name had dots.
1705
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001706- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001707 unixcompiler. Original patch by Sridhar Ratnakumar.
1708
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001709- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1710 httplib, allowing the usage of http_proxy.
1711
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001712- Issue #6287: Added the license field in Distutils documentation.
1713
Tarek Ziadéff543362009-06-11 09:25:41 +00001714- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1715
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001716- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1717 in Makefiles. This prevents compile errors when using syntax like:
1718 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1719
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001720- Issue #6131: test_modulefinder leaked when run after test_distutils.
1721 Patch by Hirokazu Yamamoto.
1722
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001723- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1724
Vinay Sajipaffbd872009-06-11 10:11:47 +00001725- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001726 and tests on pywin32 by Tim Golden.
1727
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001728- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1729
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001730- Issue #6046: Fixed the library extension when distutils build_ext is used
1731 inplace. Initial patch by Roumen Petrov.
1732
Vinay Sajipaffbd872009-06-11 10:11:47 +00001733- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001734 subcommand.
1735
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001736- Issue #6022: a test file was created in the current working directory by
1737 test_get_outputs in Distutils.
1738
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001739- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1740 inplace option. Initial patch by kxroberto.
1741
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001742- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1743 for old-style extensions.
1744
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001745- Issue #5976: Fixed Distutils test_check_environ.
1746
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001747- Issue #5941: Distutils build_clib command was not working anymore because
1748 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1749 Makefile besides AR and make Distutils use it. Original patch by David
1750 Cournapeau.
1751
R. David Murrayb507d2e2009-04-29 15:34:32 +00001752- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1753
Vinay Sajipaffbd872009-06-11 10:11:47 +00001754- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001755 anymore.
1756
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001757- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001758 sysconfig.get_config_vars.
1759
Tarek Ziadé23336082009-04-25 12:39:56 +00001760- Issue #4951: Fixed failure in test_httpservers.
1761
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001762- Issue #5795: Fixed test_distutils failure on Debian ppc.
1763
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001764- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1765
Georg Brandl1f9fa312009-04-27 16:42:58 +00001766- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1767 a value in SafeConfigParser.
1768
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001769- Issue #5732: added a new command in Distutils: check.
1770
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001771- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001772 platforms. Initial patch by Paul Moore.
1773
Tarek Ziadéf6370502009-04-05 22:57:21 +00001774- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1775 Initial fix by Steven Bethard.
1776
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001777- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1778 Initial fix by Wayne Davison.
1779
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001780- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001781
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001782- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001783
Brett Cannonf47e84c2009-04-01 16:06:01 +00001784- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1785 instead of performing them in functions. Helps prevent import deadlocking in
1786 threads.
1787
R. David Murraye59482e2009-04-01 03:42:00 +00001788- Issue #2522: locale.format now checks its first argument to ensure it has
1789 been passed only one pattern, avoiding mysterious errors where it appeared
1790 that it was failing to do localization.
1791
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001792- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1793 Brandl.
1794
Antoine Pitrou350370c2009-03-14 00:13:13 +00001795- Issue #1222: locale.format() bug when the thousands separator is a space
1796 character.
1797
Tarek Ziadé516db942009-03-11 12:52:00 +00001798- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1799 Tim Golden.
1800
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001801- collections.deque() objects now have a read-only attribute called maxlen.
1802
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001803- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1804 it is has been populated and properly configured in order to prevent
1805 window flashing.
1806
Guilherme Polo56f5be52009-03-07 01:54:57 +00001807- Issue #4792: Prevent a segfault in _tkinter by using the
1808 guaranteed to be safe interp argument given to the PythonCmd in place of
1809 the Tcl interpreter taken from a PythonCmd_ClientData.
1810
1811- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1812
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001813- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1814 Original patch by Akira Kitada.
1815
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001816- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1817
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001818- Issue #5385: Fixed mmap crash after resize failure on windows.
1819
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001820- Issue #5179: Fixed subprocess handle leak on failure on windows.
1821
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001822- PEP 372: Added collections.OrderedDict().
1823
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001824- The _asdict() for method for namedtuples now returns an OrderedDict().
1825
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001826- configparser now defaults to using an ordered dictionary.
1827
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001828- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1829 import guess_extension`` was used.
1830
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001831- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1832 with same tagname but larger size than first map. (Windows)
1833
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001834- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1835 overrun.
1836
Tarek Ziadéf0721222009-02-28 10:16:43 +00001837- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1838 bdist_rpm command.
1839
1840- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1841
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001842- Issue #5052: make Distutils compatible with 2.3 again.
1843
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001844- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1845 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001846
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001847- Issue #5287: Add exception handling around findCaller() call to help out
1848 IronPython.
1849
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001850- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1851 The file was resized to wrong size.
1852
1853- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1854
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001855- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001856 from the package_data and the data_files metadata.
1857
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001858- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001859 support.TempdirManager, to avoid writing in the tests directory.
1860
Tarek Ziadé68c50952009-02-13 23:04:17 +00001861- Issue #4524: distutils build_script command failed with --with-suffix=3.
1862 Initial patch by Amaury Forgeot d'Arc.
1863
Tarek Ziadé811d6242009-02-13 22:26:15 +00001864- Issue #2461: added tests for distutils.util
1865
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001866- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1867 which inherited from numbers.py which did not have __slots__ defined. The
1868 numbers hierarchy now has its own __slots__ declarations.
1869
Antoine Pitroub353c122009-02-11 00:39:14 +00001870- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1871 encoding.
1872
Thomas Heller465c8022009-02-10 18:59:04 +00001873- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1874 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1875
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001876- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1877 under NT and OS2. Patch by Philip Jenvey.
1878
Brett Cannonbefb14f2009-02-10 02:10:16 +00001879- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1880 to be recreated. This avoids a timing hole thanks to the old reliance on the
1881 ctime of the files involved.
1882
Guilherme Polob681df42009-02-09 22:33:59 +00001883- Issue #5122: Synchronize tk load failure check to prevent a potential
1884 deadlock.
1885
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001886- Issue #1818: collections.namedtuple() now supports a keyword argument
1887 'rename' which lets invalid fieldnames be automatically converted to
1888 positional names in the form, _1, _2, ...
1889
Guilherme Poloae098992009-02-09 16:44:24 +00001890- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1891
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001892- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1893 public documented method ``ZipImporter.get_filename()``.
1894
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001895- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1896 the execution of packages by looking for and executing a ``__main__``
1897 submodule when a package name is supplied. Initial patch by Andi
1898 Vajda.
1899
Guilherme Polo491aee22009-02-06 23:16:11 +00001900- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1901 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1902 Tkapp_Call when calling from a thread different than the one that created
1903 the Tcl interpreter. Patch by Robert Hancock.
1904
Eric Smith0e5b5622009-02-06 01:32:42 +00001905- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1906 Ross Light.
1907
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001908- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001909 environment/Makefile. Patch by Douglas Greiman.
1910
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001911- Issue #1276768: The verbose option was not used in the code of
1912 distutils.file_util and distutils.dir_util.
1913
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001914- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001915 --enabled-shared activated. Initial patch by Dave Peterson.
1916
Guilherme Polo7f423952009-02-02 21:17:09 +00001917- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1918
Raymond Hettinger85602262009-02-03 04:19:10 +00001919- The shelve module now defaults to pickle protocol 3.
1920
Brett Cannone61426e2009-01-30 01:31:34 +00001921- Fix a bug in the trace module where a bytes object from co_lnotab had its
1922 items being passed through ord().
1923
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001924- Issue #2047: shutil.move() could believe that its destination path was
1925 inside its source path if it began with the same letters (e.g. "src" vs.
1926 "src.new").
1927
Guilherme Polo5f238482009-01-28 14:41:10 +00001928- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1929
Raymond Hettinger89e12962009-01-26 02:09:03 +00001930- Removed isSequenceType(), isMappingType, and isNumberType() from the
1931 operator module; use the abstract base classes instead. Also removed
1932 the repeat() function; use mul() instead.
1933
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001934- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001935 collections.namedtuple() relied on __name__ being defined.
1936
1937- Backport importlib from Python 3.1. Only the import_module() function has
1938 been backported to help facilitate transitions from 2.7 to 3.1.
1939
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001940- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1941 the tar file was overriden by the gztar one.
1942
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001943- Issue #4863: distutils.mwerkscompiler has been removed.
1944
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001945- Added a new itertools functions: combinations_with_replacement()
1946 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001947
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001948- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001949 allowed non-integer arguments.
1950
Jesse Noller41faa542009-01-25 03:45:53 +00001951- Fix and properly document the multiprocessing module's logging
1952 support, expose the internal levels and provide proper usage
1953 examples.
1954
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001955- Issue #1672332: fix unpickling of subnormal floats, which was
1956 producing a ValueError on some platforms.
1957
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001958- Issue #3881: Help Tcl to load even when started through the
1959 unreadable local symlink to "Program Files" on Vista.
1960
Martin v. Löwis59e47792009-01-24 14:10:07 +00001961- Issue #4710: Extract directories properly in the zipfile module;
1962 allow adding directories to a zipfile.
1963
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001964- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001965 --without-threads argument. When this occurs, _multiprocessing will
1966 be disabled, and not compiled.
1967
Antoine Pitrou08838b62009-01-21 00:55:13 +00001968- Issue #5008: When a file is opened in append mode with the new IO library,
1969 do an explicit seek to the end of file (so that e.g. tell() returns the
1970 file size rather than 0). This is consistent with the behaviour of the
1971 traditional 2.x file object.
1972
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001973- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1974 parameter was set.
1975
Mark Dickinson8dd05142009-01-20 20:43:58 +00001976- Issue #4842: Always append a trailing 'L' when pickling longs using
1977 pickle protocol 0. When reading, the 'L' is optional.
1978
Brett Cannonafccd632009-01-20 02:21:27 +00001979- Add the importlib package.
1980
Jesse Noller9a0fc972009-01-18 21:12:58 +00001981- Issue #4301: Patch the logging module to add processName support, remove
1982 _check_logger_class from multiprocessing.
1983
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001984- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001985 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001986
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001987- Issue #4959: inspect.formatargspec now works for keyword only arguments
1988 without defaults.
1989
Jesse Noller6214edd2009-01-19 16:23:53 +00001990- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1991 for *nix machines for negative handles and large int handles. Without this check
1992 it is possible to segfault the interpreter.
1993
Jesse Nollerb0516a62009-01-18 03:11:38 +00001994- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1995 in sharedctypes.py.
1996
1997- Issue #1225107: inspect.isclass() returned True for instances with a custom
1998 __getattr__.
1999
Gregory P. Smithde3369f2009-01-12 04:50:11 +00002000- Issue #3826 and #4791: The socket module now closes the underlying socket
2001 appropriately when it is being used via socket.makefile() objects
2002 rather than delaying the close by waiting for garbage collection to do it.
2003
Raymond Hettingerb8baf632009-01-14 02:20:07 +00002004- Issue #1696199: Add collections.Counter() for rapid and convenient
2005 counting.
2006
Antoine Pitrou308705e2009-01-10 16:22:51 +00002007- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
2008
Thomas Heller5e4e4272009-01-08 09:34:20 +00002009- Issue #4867: Fixed a crash in ctypes when passing a string to a
2010 function without defining argtypes.
2011
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00002012- Issue #4272: Add an optional argument to the GzipFile constructor to override
2013 the timestamp in the gzip stream. The default value remains the current time.
2014 The information can be used by e.g. gunzip when decompressing. Patch by
2015 Jacques Frechet.
2016
Mark Dickinson315a20a2009-01-04 21:34:18 +00002017- Restore Python 2.3 compatibility for decimal.py.
2018
Guilherme Polo3f5f8222009-01-03 22:00:39 +00002019- Issue #3638: Remove functions from _tkinter module level that depend on
2020 TkappObject to work with multiple threads.
2021
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002022- Issue #4718: Adapt the wsgiref package so that it actually works with
2023 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00002024 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
2025
Raymond Hettinger771ed762009-01-03 19:20:32 +00002026- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
2027 to the decimal module.
2028
Georg Brandl3a9b0622009-01-03 22:07:57 +00002029- Fractions.from_float() no longer loses precision for integers too big to
2030 cast as floats.
2031
Mark Dickinsonf9236412009-01-02 23:23:21 +00002032- Issue #4812: add missing underscore prefix to some internal-use-only
2033 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
2034
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002035- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00002036 did unnecessary work in the common case where no key function was specified.
2037
Georg Brandlb1441c72009-01-03 22:33:39 +00002038- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
2039 the function is not a generator.
2040
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002041- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
2042 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00002043
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002044- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00002045 function. Original patch by Thomas Heller.
2046
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00002047- Issue #3767: Convert Tk object to string in tkColorChooser.
2048
Martin v. Löwise354d782008-12-29 16:03:04 +00002049- Issue #3248: Allow placing ScrolledText in a PanedWindow.
2050
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00002051- Issue #4444: Allow assertRaises() to be used as a context handler, so that
2052 the code under test can be written inline if more practical.
2053
Georg Brandldb7b6b92009-01-01 15:53:14 +00002054- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2055 works as expected in the interactive environment.
2056
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002057- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2058 Gabriel Genellina.
2059
Antoine Pitrou180a3362008-12-14 16:36:46 +00002060- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2061 boundary.
2062
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002063- Issue #4223: inspect.getsource() will now correctly display source code
2064 for packages loaded via zipimport (or any other conformant PEP 302
2065 loader). Original patch by Alexander Belopolsky.
2066
2067- Issue #4201: pdb can now access and display source code loaded via
2068 zipimport (or any other conformant PEP 302 loader). Original patch by
2069 Alexander Belopolsky.
2070
2071- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2072 302 conformant loader) will now work correctly in most cases (they
2073 are still subject to the constraints that exist for all code running
2074 from inside a module loaded via a PEP 302 loader and attempting to
2075 perform IO operations based on __file__). Original patch by
2076 Alexander Belopolsky.
2077
2078- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2079 allows backporting to maintenance branches. Original patch by
2080 Alexander Belopolsky.
2081
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002082- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2083 a non-ASCII letter.
2084
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002085- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2086
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002087- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2088 codec cannot be found. This is for compatibility with the builtin behavior.
2089
Facundo Batista708d5812008-12-11 04:20:07 +00002090- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2091 give correct results in the case where one argument is a quiet NaN
2092 and the other is a finite number that requires rounding.
2093
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002094- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2095 libs.
2096
Georg Brandlf9734072008-12-07 15:30:06 +00002097- Added the subprocess.check_call_output() convenience function to get output
2098 from a subprocess on success or raise an exception on error.
2099
2100- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2101 support unusual filenames (such as those containing semi-colons) in
2102 Content-Disposition headers.
2103
2104- Issue #4384: Added logging integration with warnings module using
2105 captureWarnings(). This change includes a NullHandler which does nothing;
2106 it will be of use to library developers who want to avoid the "No handlers
2107 could be found for logger XXX" message which can appear if the library user
2108 doesn't configure logging.
2109
2110- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2111 exception.
2112
Georg Brandleee31162008-12-07 15:15:22 +00002113- Issue #4529: fix the parser module's validation of try-except-finally
2114 statements.
2115
2116- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2117 not a malformed option.
2118
2119- Added the subprocess.check_output() convenience function to get output
2120 from a subprocess on success or raise an exception on error.
2121
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002122- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2123 the corresponding tests now pass.
2124
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002125- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2126 it was calling the wrong open() function.
2127
Fred Drake9a0a65b2008-12-04 19:24:50 +00002128- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2129 support unusual filenames (such as those containing semi-colons) in
2130 Content-Disposition headers.
2131
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002132- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2133 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2134
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002135- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2136 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2137 and getservbyport().
2138
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002139- Windows locale mapping updated to Vista.
2140
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002141Tools/Demos
2142-----------
2143
Antoine Pitrou8a681222009-02-07 17:13:31 +00002144- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2145 and make it 2.6-compatible.
2146
Guilherme Poloa7d27972009-01-28 16:06:51 +00002147- Ttk demos added in Demo/tkinter/ttk/
2148
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002149- Issue #4677: add two list comprehension tests to pybench.
2150
Georg Brandlb1441c72009-01-03 22:33:39 +00002151
2152Build
2153-----
2154
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002155- Issue #6094: Build correctly with Subversion 1.7.
2156
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002157- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2158
Antoine Pitrou8966c992009-05-01 21:18:27 +00002159- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2160 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2161
Matthias Klose55708cc2009-04-30 08:06:49 +00002162- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002163 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002164
Matthias Klose906785c2009-02-22 23:18:38 +00002165- Link the shared python library with $(MODLIBS).
2166
Martin v. Löwis11f72102009-02-10 13:13:30 +00002167- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2168
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002169- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2170
Martin v. Löwise97637d2009-01-11 09:45:11 +00002171- Issue #4895: Use _strdup on Windows CE.
2172
Georg Brandlb1441c72009-01-03 22:33:39 +00002173- Issue #4472: "configure --enable-shared" now works on OSX
2174
2175- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2176
2177- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2178
2179- Issue #4289: Remove Cancel button from AdvancedDlg.
2180
2181- Issue #1656675: Register a drop handler for .py* files on Windows.
2182
2183- Issue #4120: Exclude manifest from extension modules in VS2008.
2184
2185- Issue #4091: Install pythonxy.dll in system32 again.
2186
2187- Issue #4018: Disable "for me" installations on Vista.
2188
2189- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2190
2191- Issue #4204: Fixed module build errors on FreeBSD 4.
2192
2193
2194C-API
2195-----
2196
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002197- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2198 NUL: Bogus TypeError detail string.
2199
Mark Dickinson21776072009-02-10 16:13:25 +00002200- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2201 for negative arguments. Previously, it raised TypeError.
2202
Georg Brandlb1441c72009-01-03 22:33:39 +00002203- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2204
2205- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2206 the GIL is released, or owned by another thread.
2207
2208- Issue #4122: On Windows, fix a compilation error when using the
2209 Py_UNICODE_ISSPACE macro in an extension module.
2210
2211
Mark Dickinsone675f082008-12-11 21:56:00 +00002212Extension Modules
2213-----------------
2214
Gregory P. Smith365a1862009-02-12 07:35:29 +00002215- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2216 supporting objects as input no matter how it was compiled (built in
2217 implementations or external openssl library).
2218
Mark Dickinson29500f62009-01-15 15:36:10 +00002219- Issue #4397: Fix occasional test_socket failure on OS X.
2220
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002221- Issue #4279: Fix build of parsermodule under Cygwin.
2222
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002223- Issue #4751: hashlib now releases the GIL when hashing large buffers
2224 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2225 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2226
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002227- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2228
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002229- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2230 or decompress several streams at once on multi-CPU systems. Also, the GIL
2231 is now released when computing the CRC of a large buffer. Patch by ebfe.
2232
Georg Brandlb1441c72009-01-03 22:33:39 +00002233- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2234
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002235- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2236
Mark Dickinsone675f082008-12-11 21:56:00 +00002237- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2238 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002239
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002240- Issue #4583: array.array would not always prohibit resizing when a buffer
2241 has been exported, resulting in an interpreter crash when accessing the
2242 buffer.
2243
Martin v. Löwis841edad2008-11-30 10:36:49 +00002244
Jack Diederiche0cbd692009-04-01 04:27:09 +00002245- Issue #5228: Make functools.partial objects can now be pickled.
2246
Guilherme Polo9de29af2009-01-28 20:40:48 +00002247Tests
2248-----
2249
Antoine Pitrou88909542009-06-29 13:54:42 +00002250- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2251 regression tests in parallel, shortening the total runtime.
2252
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002253- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2254 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2255 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2256 skip the tests if DISPLAY is defined but can't be used.
2257
R. David Murraya21e4ca2009-03-31 23:16:50 +00002258- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002259 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002260 from test support, which does the conversion.
2261
Guilherme Polo9de29af2009-01-28 20:40:48 +00002262- Issue #5083: New 'gui' resource for regrtest.
2263
2264
Brett Cannon7317c1e2008-11-25 19:19:17 +00002265Docs
2266----
2267
Georg Brandl52b92cc2008-05-25 09:43:03 +00002268
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002269**(For information about older versions, consult the HISTORY file.)**