blob: e2b141597f8fa52724a409a793f9fd0f04a82cf1 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Eric Smith68af50b2010-02-22 14:58:30 +000015- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
16 PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string
17 and PyOS_string_to_double instead. See issue #5835 for the original
18 deprecations.
19
Antoine Pitrou05b7c562010-02-02 22:47:00 +000020- Issue #7385: Fix a crash in `MemoryView_FromObject` when
21 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
22
Mark Dickinsonbc099642010-01-29 17:27:24 +000023- Issue #7788: Fix an interpreter crash produced by deleting a list
24 slice with very large step value.
25
Eric Smithf7bb5782010-01-27 00:44:57 +000026- Issue #7766: Change sys.getwindowsversion() return value to a named
27 tuple and add the additional members returned in an OSVERSIONINFOEX
28 structure. The new members are service_pack_major, service_pack_minor,
29 suite_mask, and product_type.
30
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000031- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
32 could crash in many places because of the PyByteArray_AS_STRING() macro
33 returning NULL. The macro now returns a statically allocated empty
34 string instead.
35
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000036- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
37 where the right hand operand is a set of constants, by turning the set into
38 a frozenset and pre-building it as a constant. The comparison operation
39 is made against the constant instead of building a new set each time it is
40 executed (a similar optimization already existed which turned a list of
41 constants into a pre-built tuple). Patch and additional tests by Dave
42 Malcolm.
43
Antoine Pitrouf2c54842010-01-13 08:07:53 +000044- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
45 methods of bytes, bytearray and unicode objects by using a common
46 implementation based on stringlib's fast search. Patch by Florent Xicluna.
47
Mark Dickinson45b63652010-01-16 18:10:25 +000048- Issue #7632: Fix various str -> float conversion bugs present in 2.7
49 alpha 2, including: (1) a serious 'wrong output' bug that could
50 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
51 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +000052 strings corresponding to subnormal values, (3) a memory leak for
53 some values large enough to cause overflow, and (4) a number of
54 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +000055
Benjamin Petersonaea44282010-01-04 01:10:28 +000056- The __complex__ method is now looked up on the class of instances to make it
57 consistent with other special methods.
58
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +000059- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
60 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
61
Benjamin Petersond12362a2009-12-30 19:44:54 +000062- Issue #7604: Deleting an unset slotted attribute did not raise an
63 AttributeError.
64
Mark Dickinson9ab44b52009-12-30 16:22:49 +000065- Issue #7534: Fix handling of IEEE specials (infinities, nans,
66 negative zero) in ** operator. The behaviour now conforms to that
67 described in C99 Annex F.
68
Mark Dickinsoncbb62742009-12-27 15:09:50 +000069- Issue #1811: improve accuracy and cross-platform consistency for
70 true division of integers: the result of a/b is now correctly
71 rounded for ints a and b (at least on IEEE 754 platforms), and in
72 particular does not depend on the internal representation of an int.
73
Ronald Oussoren6f6c5622009-12-24 14:03:19 +000074- Issue #6834: replace the implementation for the 'python' and 'pythonw'
75 executables on OSX.
76
77 These executables now work properly with the arch(1) command:
78 ``arch -ppc python`` will start a universal binary version of python
79 in PPC mode (unlike previous releases).
80
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +000081- Issue #7466: segmentation fault when the garbage collector is called
82 in the middle of populating a tuple. Patch by Florent Xicluna.
83
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +000084- Issue #7419: setlocale() could crash the interpreter on Windows when called
85 with invalid values.
86
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +000087- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
88 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
89
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000090- Issue #7085: Fix crash when importing some extensions in a thread
91 on MacOSX 10.6.
92
Philip Jenvey1309adb2009-11-17 03:43:14 +000093- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
94
Mark Dickinson6f1d0492009-11-15 13:58:49 +000095- Issue #6970: Remove redundant calls when comparing objects that don't
96 implement the relevant rich comparison methods.
97
Mark Dickinsond550c9a2009-11-15 09:57:26 +000098- Issue #7298: fixes for range and reversed(range(...)). Iteration
99 over range(a, b, c) incorrectly gave an empty iterator when a, b and
100 c fit in C long but the length of the range did not. Also fix
101 several cases where reversed(range(a, b, c)) gave wrong results, and
102 fix a refleak for reversed(range(a, b, c)) with large arguments.
103
Raymond Hettingerfc438512009-11-01 20:55:33 +0000104- Issue #7244: itertools.izip_longest() no longer ignores exceptions
105 raised during the formation of an output tuple.
106
Benjamin Petersonb2e796a2009-10-28 21:59:39 +0000107- Issue #3297: On wide unicode builds, do not split unicode characters into
108 surrogates.
109
Mark Dickinsonf9724882009-10-26 21:51:18 +0000110- Remove length limitation when constructing a complex number from a string.
111
Mark Dickinson27a87a22009-10-25 20:43:34 +0000112- Issue #1087418: Boost performance of bitwise operations for longs.
113
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000114- Support for AtheOS has been completely removed from the code base. It was
115 disabled since Python 3.0.
116
117- Support for several legacy threading libraries has been disabled. These
118 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
119 will be entirely removed in 3.3.
120
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000121- Peephole constant folding had missed UNARY_POSITIVE.
122
Antoine Pitrou011bd622009-10-20 21:52:47 +0000123- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
124 fixes the problem of some exceptions being thrown at shutdown when the
125 interpreter is killed. Patch by Adam Olsen.
126
Antoine Pitrou671141d2009-10-19 19:37:25 +0000127- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000128 support.
129
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000130- Issue #7120: logging: Removed import of multiprocessing which is causing
131 crash in GAE.
132
Neil Schemenauere441cb72009-10-14 19:14:38 +0000133- Issue #1754094: Improve the stack depth calculation in the compiler.
134 There should be no other effect than a small decrease in memory use.
135 Patch by Christopher Tur Lesniewski-Laas.
136
Antoine Pitrou403ce782009-10-14 17:14:16 +0000137- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000138 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000139
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000140- Issue #1571184: The Unicode database contains properties for more characters.
141 The tables for code points representing numeric values, white spaces or line
142 breaks are now generated from the official Unicode Character Database files,
143 and include information from the Unihan.txt file.
144
Mark Dickinson2683ab02009-09-29 19:21:35 +0000145- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
146 of producing internally inconsistent Python longs.
147
Philip Jenvey26713ca2009-09-29 04:57:18 +0000148- Issue #6990: Fix threading.local subclasses leaving old state around
149 after a reference cycle GC which could be recycled by new locals.
150
Benjamin Peterson4905e802009-09-27 02:43:28 +0000151- Issue #5460: Fix an ambiguity in the grammar.
152
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000153- Issue #1766304: Improve performance of membership tests on range objects.
154
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000155- Issue #6713: Improve performance of integer -> string conversions.
156
Mark Dickinson54a3db92009-09-06 10:19:23 +0000157- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
158
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000159- Issue #6750: A text file opened with io.open() could duplicate its output
160 when writing from multiple threads at the same time.
161
Benjamin Peterson14327712009-08-15 13:23:05 +0000162- Issue #6707: dir() on an uninitialized module caused a crash.
163
Georg Brandl953152f2009-07-22 12:03:59 +0000164- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
165
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000166- Issue #6573: set.union() stopped processing inputs if an instance of self
167 occurred in the argument chain.
168
R. David Murray046f7232009-07-19 02:22:05 +0000169- Issue #6070: On posix platforms import no longer copies the execute bit
170 from the .py file to the .pyc file if it is set.
171
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000172- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
173
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000174- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
175 object, and not an int. Fix the corresponding error message, and the
176 documentation.
177
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000178- The deprecated PyCObject has been removed.
179
Mark Dickinson835a6c82009-06-30 15:45:17 +0000180- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
181 This fixes a build failure on HP-UX: int32_t and uint32_t are
182 defined in inttypes.h instead of stdint.h on that platform.
183
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000184- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000185 the 'surrogateescape' error handler, a string which contains unpaired
186 surrogates.
187
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000188- Issue #4856: Remove checks for win NT.
189
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000190- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
191 argument to construct a null-initialized bytes object.
192
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000193- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
194 These methods allow the conversion of integers to bytes, and vice-versa.
195
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000196- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
197 instances from being copied with copy.copy(), and bytes subclasses
198 from being pickled properly.
199
Benjamin Peterson466a7822009-07-02 21:44:01 +0000200C-API
201-----
202
Mark Dickinson93f562c2010-01-30 10:30:15 +0000203- Issue #7767: New function PyLong_AsLongLongAndOverflow added,
204 analogous to PyLong_AsLongAndOverflow.
205
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000206- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
207 has '\0' at the end.
208
Mark Dickinsonde604012010-01-01 19:27:32 +0000209- Issue #5080: The argument parsing functions PyArg_ParseTuple,
210 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
211 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
212 DeprecationWarning for float arguments passed with the 'L' format
213 code. This will become a TypeError in a future version of Python,
214 to match the behaviour of the other integer format codes.
215
Georg Brandl1e28a272009-12-28 08:41:01 +0000216- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
217
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000218- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
219 in PyArg_ParseTupleAndKeywords.
220
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000221- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000222 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
223
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000224- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
225 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
226 should used for accessing the d_type and d_name members of structures
227 using PyDescr_COMMON.
228
229- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000230
Benjamin Peterson466a7822009-07-02 21:44:01 +0000231- The code flags for old __future__ features are now available again.
232
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000233- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
234 PyCode_Addr2Line().
235
236- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
237 object at a specified file, function, and line number.
238
239- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
240 ``const char *`` as the string is stored beyond the call.
241
Benjamin Peterson05159c42009-12-03 03:01:27 +0000242- Issue #2422: When compiled with the ``--with-valgrind`` option, the
243 pymalloc allocator will be automatically disabled when running under
244 Valgrind. This gives improved memory leak detection when running
245 under Valgrind, while taking advantage of pymalloc at other times.
246
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000247Library
248-------
249
Andrew M. Kuchlingfbacb062010-02-22 16:52:52 +0000250- Issue #7597: curses.use_env() can now be called before initscr().
251 Noted by Kan-Ru Chen.
252
Ezio Melotti19e4acf2010-02-22 15:59:01 +0000253- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
254
R. David Murray57c45ac2010-02-21 04:39:40 +0000255- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
256 messages parsed by email.Parser.HeaderParser.
257
Brett Cannonef7d6722010-02-19 16:04:36 +0000258- Issue #7361: Importlib was not properly checking the number of bytes in
259 bytecode file when it was less then 8 bytes.
260
Mark Dickinson84230a12010-02-18 14:49:50 +0000261- Issue #7633: In the decimal module, Context class methods (with the
262 exception of canonical and is_canonical) now accept instances of int
263 and long wherever a Decimal instance is accepted, and implicitly
264 convert that argument to Decimal. Previously only some arguments
265 were converted.
266
R. David Murray1f449142010-02-11 00:15:05 +0000267- Issue #7835: shelve should no longer produce mysterious warnings during
268 interpreter shutdown.
269
Antoine Pitrou99f69ee2010-02-09 17:25:47 +0000270- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">")
271 in XML processing instructions and comments. These raw characters are
272 allowed by the XML specification, and are necessary when outputting e.g.
273 PHP code in a processing instruction. Patch by Neil Muller.
274
Antoine Pitrouc77dd322010-02-09 16:51:16 +0000275- Issue #6233: ElementTree failed converting unicode characters to XML
276 entities when they could't be represented in the requested output
277 encoding. Patch by Jerry Chen.
278
Ronald Oussorenee5c8852010-02-07 20:24:02 +0000279- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to
280 specify the compression type.
281
Antoine Pitroub6375f12010-02-04 20:23:24 +0000282- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
283 specified, rather than fall through to AF_PACKET (in the `socket` module).
284 Also, raise ValueError rather than TypeError when an unknown TIPC address
285 type is specified. Patch by Brian Curtin.
286
Antoine Pitrou905a2ff2010-01-31 22:47:27 +0000287- Issue #6939: Fix file I/O objects in the `io` module to keep the original
288 file position when calling `truncate()`. It would previously change the
289 file position to the given argument, which goes against the tradition of
290 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
291
Antoine Pitroua32f9a22010-01-27 21:18:57 +0000292- Issue #7610: Reworked implementation of the internal
293 :class:`zipfile.ZipExtFile` class used to represent files stored inside
294 an archive. The new implementation is significantly faster and can
295 be wrapped in a :class:`io.BufferedReader` object for more speedups.
296 It also solves an issue where interleaved calls to `read()` and
297 `readline()` give wrong results. Patch by Nir Aides.
298
Jesse Noller1f0b6582010-01-27 03:36:01 +0000299- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
300 allowing for a maximum number of tasks within the pool to be completed by
301 the worker before that worker is terminated, and a new one created to
302 replace it.
303
Benjamin Petersond6326642010-01-27 02:25:58 +0000304- Issue #7792: Registering non-classes to ABCs raised an obscure error.
305
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000306- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000307
Ezio Melotti38f00332010-01-25 12:39:47 +0000308- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
309
Benjamin Peterson25001472010-01-25 03:37:42 +0000310- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
311 the release file is empty.
312
Antoine Pitrou1119a642010-01-17 12:16:23 +0000313- Issue #7561: Fix crashes when using bytearray objects with the posix
314 module.
315
R. David Murraya8f480f2010-01-16 18:30:03 +0000316- Issue #1670765: Prevent email.generator.Generator from re-wrapping
317 headers in multipart/signed MIME parts, which fixes one of the sources of
318 invalid modifications to such parts by Generator.
319
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000320- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
321 Patch by Florent Xicluna, along with some additional tests.
322
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000323- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
324 1-byte argument. Patch by Victor Stinner.
325
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000326- Issue #3299: Fix possible crash in the _sre module when given bad
327 argument values in debug mode. Patch by Victor Stinner.
328
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000329- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
330 Patch by Brian Curtin.
331
Benjamin Peterson5efea042010-01-13 03:49:50 +0000332- Issue #7681: Use floor division in appropiate places in the wave module.
333
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000334- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
335 Extension extra options may change the output without changing the .c
336 file). Initial patch by Collin Winter.
337
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000338- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
339 gcc when it has a fully qualified configuration prefix. Initial patch
340 by Arfrever.
341
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000342- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
343 the destruction of weakref'ed objects while iterating.
344
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000345- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
346 Victor Stinner.
347
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000348- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
349 properly handles EINTR within the read, readline, write & flush methods.
350 The socket.sendall() method now properly handles interrupted system calls.
351
Antoine Pitroub1f88352010-01-03 22:37:40 +0000352- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
353 and make it implement the `io.BufferedIOBase` ABC to allow for further
354 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
355
356- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000357 parameter to allow specifying where your connections come from.
358
359- socket.create_connection now accepts an optional source_address parameter.
360
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000361- Issue #5511: now zipfile.ZipFile can be used as a context manager.
362 Initial patch by Brian Curtin.
363
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000364- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
365 MSVC XML Manifest file in text mode so string patterns can be used
366 in regular expressions.
367
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000368- Issue #7552: Removed line feed in the base64 Authorization header in
369 the Distutils upload command to avoid an error when PyPI reads it.
370 This occurs on long passwords. Initial patch by JP St. Pierre.
371
Senthil Kumaran47fff872009-12-20 07:10:31 +0000372- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
373 Tatsuhiro Tsujikawa.
374
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000375- Issue #4757: `zlib.compress` and other methods in the zlib module now
376 raise a TypeError when given an `str` object (rather than a `bytes`-like
377 object). Patch by Victor Stinner and Florent Xicluna.
378
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000379- Issue #7349: Make methods of file objects in the io module accept None as an
380 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
381 the same as passing no argument.
382
Lars Gustäbel365aff32009-12-13 11:42:29 +0000383- Issue #7357: tarfile no longer suppresses fatal extraction errors by
384 default.
385
R. David Murraye8dc2582009-12-10 02:08:06 +0000386- Issue #5949: added check for correct lineends in input from IMAP server
387 in imaplib.
388
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000389- Add a reverse() method to collections.deque().
390
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000391- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
392
Antoine Pitrou781eba72009-12-08 15:57:31 +0000393- Issue #6986: Fix crash in the JSON C accelerator when called with the
394 wrong parameter types. Patch by Victor Stinner.
395
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000396- Issue #7457: added a read_pkg_file method to
397 distutils.dist.DistributionMetadata.
398
Vinay Sajip540f2152009-12-06 17:57:11 +0000399- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
400 TLS with authentication credentials.
401
Tarek Ziadédf872d42009-12-06 09:28:17 +0000402- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
403 generated in Distutils. Patch by Stephen Emslie.
404
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000405- Issue #4120: Drop reference to CRT from manifest when building extensions with
406 msvc9compiler.
407
Antoine Pitroub7572f02009-12-02 20:46:48 +0000408- Issue #7333: The `posix` module gains an `initgroups()` function providing
409 access to the initgroups(3) C library call on Unix systems which implement
410 it. Patch by Jean-Paul Calderone.
411
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000412- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
413 ownership when the group is not forced, because the group may be different
414 from the user's group and inherit from its container when the test is run.
415
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000416- Issue #4486: When an exception has an explicit cause, do not print its
417 implicit context too. This affects the `traceback` module as well as
418 built-in exception printing.
419
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000420- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
421 Robert Collins.
422
Vinay Sajip03f6c112009-11-27 14:03:36 +0000423- Issue #7403: logging: Fixed possible race condition in lock creation.
424
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000425- Issue #6845: Add restart support for binary upload in ftplib. The
426 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
427 argument. Patch by Pablo Mouzo.
428
Antoine Pitroube6859d2009-11-25 23:02:32 +0000429- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
430 method returning the total number of seconds in the duration. Patch by
431 Brian Quinlan.
432
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000433- Issue #7133: SSL objects now support the new buffer API.
434
Senthil Kumaran758025c2009-11-23 19:02:52 +0000435- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
436
Lars Gustäbel9520a432009-11-22 18:48:49 +0000437- Issue #6123: tarfile now opens empty archives correctly and consistently
438 raises ReadError on empty files.
439
Tarek Ziadé26afd482009-11-19 05:39:00 +0000440- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
441 be 2.
442
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000443- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
444 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000445
Lars Gustäbel7b465392009-11-18 20:29:25 +0000446- Issue #7341: Close the internal file object in the TarFile constructor in
447 case of an error.
448
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000449- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
450 Windows box. Help provided by David Bolen.
451
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000452- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
453 TLS or SSL. Patch by Giampaolo Rodola'.
454
Nick Coghlan106274b2009-11-15 23:04:33 +0000455- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
456
Antoine Pitroub8108e22009-11-15 14:25:16 +0000457- Issue #4969: The mimetypes module now reads the MIME database from
458 the registry under Windows. Patch by Gabriel Genellina.
459
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000460- Issue #6816: runpy now provides a run_path function that allows Python code
461 to execute file paths that refer to source or compiled Python files as well
462 as zipfiles, directories and other valid sys.path entries that contain a
463 __main__.py file. This allows applications that run other Python scripts to
464 support the same flexibility as the CPython command line itself.
465
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000466- Issue #7318: multiprocessing now uses a timeout when it fails to establish
467 a connection with another process, rather than looping endlessly. The
468 default timeout is 20 seconds, which should be amply sufficient for
469 local connections.
470
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000471- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
472 unpickled. This fixes crashes under Windows when trying to run
473 test_multiprocessing in verbose mode.
474
Michael Foord34c94622010-02-10 15:51:42 +0000475- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
476 argument added to the TextTestRunner constructor allowing a different result
477 class to be used without having to subclass.
478
479- Issue 7588: ``unittest.TextTestResult.getDescription`` now includes the test
480 name in failure reports even if the test has a docstring.
481
Antoine Pitrou434736a2009-11-10 18:46:01 +0000482- Issue #3001: Add a C implementation of recursive locks which is used by
483 default when instantiating a `threading.RLock` object. This makes
484 recursive locks as fast as regular non-recursive locks (previously,
485 they were slower by 10x to 15x).
486
Antoine Pitroub0872682009-11-09 16:08:16 +0000487- Issue #7282: Fix a memory leak when an RLock was used in a thread other
488 than those started through `threading.Thread` (for example, using
489 `_thread.start_new_thread()`).
490
Brett Cannone52c9192009-11-07 23:55:05 +0000491- Issue #7187: Importlib would not silence the IOError raised when trying to
492 write new bytecode when it was made read-only.
493
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000494- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
495 which are part of a reference cycle.
496
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000497- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
498 objects on 64-bit systems. Patch by Michael Broghton.
499
Antoine Pitrou03f13442009-11-02 11:36:51 +0000500- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
501 a modification is done through it. This fixes inconsistencies and test
502 failures on systems with slightly bogus mtime behaviour.
503
Gregory P. Smith50467882009-11-01 18:42:17 +0000504- Issue #7246 & Issue #7208: getpass now properly flushes input before
505 reading from stdin so that existing input does not confuse it and
506 lead to incorrect entry or an IOError. It also properly flushes it
507 afterwards to avoid the terminal echoing the input afterwards on
508 OSes such as Solaris.
509
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000510- Issue #7233: Fix a number of two-argument Decimal methods to make
511 sure that they accept an int or long as the second argument. Also
512 fix buggy handling of large arguments (those with coefficient longer
513 than the current precision) in shift and rotate.
514
Lars Gustäbel1440df22009-10-29 09:39:47 +0000515- Issue #4750: Store the basename of the original filename in the gzip FNAME
516 header as required by RFC 1952.
517
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000518- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
519 Distutils.
520
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000521- Issue #7218: Fix test_site for win32, the directory comparison was done with
522 an uppercase.
523
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000524- Issue #7205: Fix a possible deadlock when using a BZ2File object from
525 several threads at once.
526
Vinay Sajip42ead482009-10-21 20:22:14 +0000527- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
528
Mark Dickinson06bb6742009-10-20 13:38:04 +0000529- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
530 larger than emax.
531
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000532- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
533 platforms, and assorted locale fixes by Derk Drukker.
534
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000535- Issue #5833: Fix extra space character in readline completion with the
536 GNU readline library version 6.0.
537
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000538- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000539
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000540- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
541 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000542
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000543- Issue #7082: When falling back to the MIME 'name' parameter, the
544 correct place to look for it is the Content-Type header.
545
Benjamin Petersond3afada2009-10-09 21:43:09 +0000546- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
547 builtin tokenizer.
548
Mark Dickinson56df8872009-10-07 19:23:50 +0000549- Issue #7048: Force Decimal.logb to round its result when that result
550 is too large to fit in the current precision.
551
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000552- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000553 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000554
Thomas Heller69b639f2009-09-18 20:08:39 +0000555- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
556 does now always result in NULL.
557
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000558- Issue #5042: Structure sub-subclass does now initialize correctly
559 with base class positional arguments.
560
Eric Smith81fd8042009-09-18 13:23:13 +0000561- Issue #6882: Import uuid creates zombies processes.
562
Matthias Klosef6b76b02009-09-13 15:18:53 +0000563- Issue #6635: Fix profiler printing usage message.
564
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000565- Issue #6856: Add a filter keyword argument to TarFile.add().
566
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000567- Issue #6888: pdb's alias command was broken when no arguments were given.
568
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000569- Issue #6857: Default format() alignment should be '>' for Decimal
570 instances.
571
Mark Dickinson825fce32009-09-07 18:08:12 +0000572- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
573 returning NaN or raising InvalidContext. Also, fix infinite recursion
574 in long(Decimal('nan')).
575
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000576- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
577 with no type specifier.
578
Thomas Heller8b939522009-09-04 18:24:41 +0000579- Issue #6239: ctypes.c_char_p return value must return bytes.
580
Chris Withers9c33cbf2009-09-04 17:04:16 +0000581- Issue #6838: Use a list to accumulate the value instead of
582 repeatedly concatenating strings in http.client's
583 HTTPResponse._read_chunked providing a significant speed increase
584 when downloading large files servend with a Transfer-Encoding of 'chunked'.
585
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000586- Trying to import a submodule from a module that is not a package, ImportError
587 should be raised, not AttributeError.
588
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000589- When the globals past to importlib.__import__() has __package__ set to None,
590 fall back to computing what __package__ should be instead of giving up.
591
Brett Cannon6afbaef2009-08-30 19:08:58 +0000592- Raise a TypeError when the name of a module to be imported for
593 importlib.__import__ is not a string (was raising an
594 AttributeError before).
595
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000596- Allow the fromlist passed into importlib.__import__ to be any iterable.
597
Brett Cannon4d75fc12009-08-30 03:47:36 +0000598- Have importlib raise ImportError if None is found in sys.modules.
599
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000600- Issue #6054: Do not normalize stored pathnames in tarfile.
601
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000602- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
603 payloads are now ordered by integer value rather than lexicographically.
604
Guilherme Polobcd03df2009-08-18 15:35:57 +0000605- Issue #1356969: Add missing info methods in tix.HList.
606
607- Issue #1522587: New constants and methods for the tix.Grid widget.
608
609- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
610
611- Issue #1119673: Do not override tkinter.Text methods when creating a
612 ScrolledText.
613
Gregory P. Smith01099702009-08-16 18:58:46 +0000614- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
615
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000616- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
617 the xview* and yview* methods.
618
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000619- Issue #6629: Fix a data corruption issue in the new I/O library, which could
620 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
621 "wb+" mode) after having buffered a certain amount of data for reading. This
622 bug was not present in the pure Python implementation.
623
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000624- Issue #6622: Fix "local variable 'secret' referenced before
625 assignment" bug in POP3.apop.
626
Mark Dickinson45f799f2009-08-02 20:08:54 +0000627- Issue #2715: Remove remnants of Carbon.File from binhex module.
628
Mark Dickinson345adc42009-08-02 10:14:23 +0000629- Issue #6595: The Decimal constructor now allows arbitrary Unicode
630 decimal digits in input, as recommended by the standard. Previously
631 it was restricted to accepting [0-9].
632
Jack Diederich36596a32009-07-26 22:23:04 +0000633- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
634 DO/DONT correctly.
635
Senthil Kumaran67305382009-07-26 04:46:00 +0000636- Issue #1424152: Fix for http.client, urllib.request to support SSL while
637 working through proxy. Original patch by Christopher Li, changes made by
638 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000639
Brett Cannon69194272009-07-20 04:23:48 +0000640- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
641 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
642 and PyPycLoader inherit from this class and provide implementations in
643 relation to other methods required by the ABCs.
644
Brett Cannon64ef00f2009-07-20 03:19:18 +0000645- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
646 the documentation said it did even though the code in PyLoader relied on the
647 abstract method required by ResourceLoader.
648
Mark Dickinson85424c92009-07-18 14:41:42 +0000649- Issue #6431: Make Fraction type return NotImplemented when it doesn't
650 know how to handle a comparison without loss of precision. Also add
651 correct handling of infinities and nans for comparisons with float.
652
Antoine Pitrouf3637322009-08-06 21:00:37 +0000653- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000654
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000655- Issue #6358: The exit status of a command started with os.popen() was
656 reported differently than it did with python 2.x.
657
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000658- Issue #6323: The pdb debugger did not exit when running a script with a
659 syntax error.
660
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000661- Issue #3392: The subprocess communicate() method no longer fails in select()
662 when file descriptors are large; communicate() now uses poll() when possible.
663
Antoine Pitrou54923952009-07-01 14:53:06 +0000664- Issue #6369: Fix an RLE decompression bug in the binhex module.
665
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000666- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
667
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000668- The deprecated function string.maketrans has been removed.
669
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000670- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
671 sys.path.
672
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000673- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
674
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000675Extension Modules
676-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000677
Martin v. Löwis3afc62e2010-02-18 16:27:43 +0000678- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
679 msvcr100.dll is not a platform assembly anymore.
680
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000681- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
682
Mark Dickinson40714af2009-10-08 15:59:20 +0000683- Issue #7078: Set struct.__doc__ from _struct.__doc__.
684
Mark Dickinson45f992a2009-12-19 11:20:49 +0000685- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000686
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000687- Issue #6877: It is now possible to link the readline extension to the
688 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000689
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000690- Issue #6848: Fix curses module build failure on OS X 10.6.
691
Brett Cannon2f827382009-08-13 19:58:01 +0000692- Fix a segfault that could be triggered by expat with specially formed input.
693
Mark Dickinson1f268282009-07-28 17:22:36 +0000694- Issue #6561: '\d' in a regex now matches only characters with
695 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
696 matched characters with category 'No'.
697
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000698- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000699 failing due to the resize restriction in-place when the object has exported
700 buffers.
701
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000702- Issue #2389: Array objects are now pickled in a portable manner.
703
Matthias Klosea50ffe52010-01-22 01:10:19 +0000704- Expat: Fix DoS via XML document with malformed UTF-8 sequences
705 (CVE_2009_3560).
706
Martin v. Löwis95c46012009-06-28 09:36:14 +0000707Build
708-----
709
Martin v. Löwis19ed3c82010-02-15 21:45:06 +0000710- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwis7671efc2010-02-15 08:35:16 +0000711
Mark Dickinsonde508002010-01-17 21:02:55 +0000712- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
713 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
714 PyMem_Free instead. Also disable caching of powers of 5.
715
Benjamin Petersond78735d2010-01-01 16:04:23 +0000716- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
717
718- Issue #6943: Use pkg-config to find the libffi headers when the
719 --with-system-ffi flag is used.
720
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000721- Issue #7609: Add a --with-system-expat option that causes the system's expat
722 library to be used for the pyexpat module instead of the one included with
723 Python.
724
Benjamin Petersone57d6762009-12-30 03:02:03 +0000725- Issue #7589: Only build the nis module when the correct header files are
726 found.
727
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000728- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000729
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000730- Issue #5792: Extend the short float repr support to x86 systems using
731 icc or suncc.
732
Mark Dickinsona25b1312009-10-31 10:18:44 +0000733- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
734 compiles correctly under gcc on x86-64. This fixes a reported
735 problem with the --with-tsc build on x86-64.
736
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000737- Issue #6802: Fix build issues on MacOSX 10.6
738
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000739- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
740
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000741- Issue 4601: 'make install' did not set the appropriate permissions on
742 directories.
743
Martin v. Löwis95c46012009-06-28 09:36:14 +0000744- Issue 5390: Add uninstall icon independent of whether file
745 extensions are installed.
746
Ronald Oussoren585c1732009-12-24 14:21:55 +0000747- Issue #7541: when using ``python-config`` with a framework install the compiler might
748 use the wrong library.
749
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000750Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000751------------
752
Barry Warsaw615368f2010-02-05 19:12:30 +0000753- Updating `Using Python` documentation to include description of CPython's
754 -J and -X options.
755
Brett Cannon757df6e2009-08-30 04:00:12 +0000756- Document that importing a module that has None in sys.modules triggers an
757 ImportError.
758
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000759- Issue #6556: Fixed the Distutils configuration files location explanation
760 for Windows.
Matthias Klosec8b16f82010-01-31 16:14:37 +0000761
762- Update python manual page (options -B, -O0, -s, environment variables
763 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000764
Brett Cannonb49c70c2009-07-15 04:08:33 +0000765Tests
766-----
767
Ezio Melotti184bdfb2010-02-18 09:37:05 +0000768- Issue #7712: test.support gained a new `temp_cwd` context manager which is
769 now also used by regrtest to run all the tests in a temporary directory.
770 The original CWD is saved in `support.SAVEDCWD`.
771 Thanks to Florent Xicluna who helped with the patch.
772
Mark Dickinsonedff7af2010-02-13 18:34:53 +0000773- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
774 test_capi (only seen so far on platforms where the curses module
775 wasn't built), due to an uncleared exception.
776
R. David Murraye9e95932010-02-06 05:00:15 +0000777- issue #7728: test_timeout was changed to use test_support.bind_port
778 instead of a hard coded port.
779
R. David Murray445448c2009-12-20 17:28:31 +0000780- Issue #7376: instead of running a self-test (which was failing) when called
781 with no arguments, doctest.py now gives a usage message.
782
R. David Murrayef1992b2009-12-16 15:19:27 +0000783- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
784
R. David Murray596da442009-12-14 23:06:11 +0000785- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000786 instead of a hardcoded port number in test_rapid_restart.
787
R. David Murrayba311052009-12-04 00:09:14 +0000788- Issue #7431: use TESTFN in test_linecache instead of trying to create a
789 file in the Lib/test directory, which might be read-only for the
790 user running the tests.
791
R. David Murray35768ad2009-11-15 00:23:21 +0000792- Issue #7324: add a sanity check to regrtest argument parsing to
793 catch the case of an option with no handler.
794
R. David Murray7dc72cc2009-11-14 16:13:02 +0000795- Issue #7312: Add a -F flag to run the selected tests in a loop until
796 a test fails. Can be combined with -j.
797
Antoine Pitrou060cee22009-11-13 16:29:04 +0000798- Issue #6551: test_zipimport could import and then destroy some modules of
799 the encodings package, which would make other tests fail further down
800 the road because the internally cached encoders and decoders would point
801 to empty global variables.
802
Antoine Pitrou941ee882009-11-11 20:59:38 +0000803- Issue #7295: Do not use a hardcoded file name in test_tarfile.
804
Antoine Pitrou557934f2009-11-06 22:41:14 +0000805- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
806 primitives such as Lock, RLock, Condition, Event and Semaphore.
807
Brett Cannoncfed0292009-11-05 01:26:57 +0000808- Issue #7248 (part 2): Use a unique temporary directory for importlib source
809 tests instead of tempfile.tempdir. This prevents the tests from sharing state
810 between concurrent executions on the same system.
811
Brett Cannon0ae45112009-11-05 01:17:22 +0000812- Issue #7248: In importlib.test.source.util a try/finally block did not make
813 sure that some referenced objects actually were created in the block before
814 calling methods on the object.
815
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000816- Issue #7222: Make thread "reaping" more reliable so that reference
817 leak-chasing test runs give sensible results. The previous method of
818 reaping threads could return successfully while some Thread objects were
819 still referenced. This also introduces a new private function:
820 :func:`_thread._count()`.
821
R. David Murray27144602009-10-19 15:26:16 +0000822- Issue #7151: fixed regrtest -j so that output to stderr from a test no
823 longer runs the risk of causing the worker thread to fail.
824
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000825- Issue #7055: test___all__ now greedily detects all modules which have an
826 __all__ attribute, rather than using a hardcoded and incomplete list.
827
R. David Murray0bc11ae2009-10-18 22:18:17 +0000828- Issue #7058: Added save/restore for things like sys.argv and cwd to
829 runtest_inner in regrtest, with warnings if the called test modifies them,
830 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000831
Mark Dickinson2e304402009-10-04 18:43:54 +0000832- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
833
Brett Cannon3c273842009-07-20 00:14:29 +0000834- Fixed tests in importlib.test.source.test_abc_loader that were masking
835 the proper exceptions that should be raised for missing or improper code
836 object bytecode.
837
Brett Cannonb49c70c2009-07-15 04:08:33 +0000838- Removed importlib's custom test discovery code and switched to
839 unittest.TestLoader.discover().
840
Antoine Pitroua69ba652010-01-18 21:20:53 +0000841Tools/Demos
842-----------
843
844- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
845 added to the `Tools/` directory. They were previously living in the
846 sandbox.
847
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000848
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000849What's New in Python 3.1?
850=========================
851
852*Release date: 27-June-2009*
853
854Core and Builtins
855-----------------
856
Mark Dickinsonad195562009-06-24 19:01:32 +0000857- Issue #6334: Fix bug in range length calculation for ranges with
858 large arguments.
859
Raymond Hettinger159eac92009-06-23 20:38:54 +0000860- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
861 because it wasn't recognized as a sequence).
862
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000863Library
864-------
865
Georg Brandld07ac642009-08-13 07:50:57 +0000866- Issue #6126: Fixed pdb command-line usage.
867
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000868- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000869
Facundo Batista10706e22009-06-19 20:34:30 +0000870- Issue #6274: Fixed possible file descriptors leak in subprocess.py
871
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000872- Accessing io.StringIO.buffer now raises an AttributeError instead of
873 io.UnsupportedOperation.
874
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000875- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000876 (On Unix)
877
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000878- Issue #1202: zipfile module would cause a struct.error when attempting to
879 store files with a CRC32 > 2**31-1.
880
Matthias Kloseab2b7552009-06-22 13:05:52 +0000881Extension Modules
882-----------------
883
884- Issue #5590: Remove unused global variable in pyexpat extension.
885
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000886
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000887What's New in Python 3.1 Release Candidate 2?
888=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000889
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000890*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000891
892Core and Builtins
893-----------------
894
Raymond Hettinger94f55832009-06-12 18:40:16 +0000895- Fixed SystemError triggered by "range([], 1, -1)".
896
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000897- Issue #5924: On Windows, a large PYTHONPATH environment variable
898 (more than 255 characters) would be completely ignored.
899
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000900- Issue #4547: When debugging a very large function, it was not always
901 possible to update the lineno attribute of the current frame.
902
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000903- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000904 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000905
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000906Library
907-------
908
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000909- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000910 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000911 Popen. Tested under win32 to build the py-postgresql project.
912
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000913- Issue #6258: Support AMD64 in bdist_msi.
914
R. David Murray58641de2009-06-12 15:33:19 +0000915- Issue #6195: fixed doctest to no longer try to read 'source' data from
916 binary files.
917
Vinay Sajipaffbd872009-06-11 10:11:47 +0000918- Issue #5262: Fixed bug in next rollover time computation in
919 TimedRotatingFileHandler.
920
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000921- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
922 errors property. Additionally, the errors and encoding properties of StringIO
923 are always None now.
924
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000925- Issue #6137: The pickle module now translates module names when loading
926 or dumping pickles with a 2.x-compatible protocol, in order to make data
927 sharing and migration easier. This behaviour can be disabled using the
928 new `fix_imports` optional argument.
929
Raymond Hettinger40925d22009-06-04 18:32:39 +0000930- Removed the ipaddr module.
931
Georg Brandlb54d8012009-06-04 09:11:51 +0000932- Issue #3613: base64.{encode,decode}string are now called
933 base64.{encode,decode}bytes which reflects what type they accept and return.
934 The old names are still there as deprecated aliases.
935
Georg Brandl317185a2009-06-04 09:00:56 +0000936- Issue #5767: Remove sgmlop support from xmlrpc.client.
937
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000938- Issue #6150: Fix test_unicode on wide-unicode builds.
939
Antoine Pitrouc06de472009-05-30 21:04:26 +0000940- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
941 parameters.
942
Martin v. Löwis79b13872009-06-01 04:13:14 +0000943Windows
944-------
945
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000946- Issue #6221: Delete test registry key before running the test.
947
Martin v. Löwis79b13872009-06-01 04:13:14 +0000948- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
949
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000950C-API
951-----
952
953- Issue #5735: Python compiled with --with-pydebug should throw an
954 ImportError when trying to import modules compiled without
955 --with-pydebug, and vice-versa.
956
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000957
Brett Cannonc6d936e2009-06-07 20:09:53 +0000958Build
959-----
960
961- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
962 added LIBS to OS X framework builds.
963
Ronald Oussoren99aab652009-06-08 21:22:57 +0000964- Issue #5809: Specifying both --enable-framework and --enable-shared is
965 an error. Configure now explicity tells you about this.
966
967
Brett Cannonc6d936e2009-06-07 20:09:53 +0000968
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000969What's New in Python 3.1 release candidate 1?
970=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000971
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000972*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000973
974Core and Builtins
975-----------------
976
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000977- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
978 of the command line.
979
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000980- Issue #6012: Add cleanup support to O& argument parsing.
981
Eric Smith41669ca2009-05-23 14:23:22 +0000982- Issue #6089: Fixed str.format with certain invalid field specifiers
983 that would raise SystemError.
984
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000985- Issue #5982: staticmethod and classmethod now expose the wrapped
986 function with __func__.
987
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000988- Added support for multiple context managers in the same with-statement.
989 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000990
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000991- Issue #5829: complex("1e500") no longer raises OverflowError. This
992 makes it consistent with float("1e500") and interpretation of real
993 and imaginary literals.
994
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000995- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
996
R. David Murraydd226ea2009-05-13 12:27:21 +0000997- Issue #5994: the marshal module now has docstrings.
998
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000999- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
1000 (1) inf and nan strings with trailing whitespace were incorrectly
1001 rejected; (2) parsing of strings representing infinities and nans
1002 was locale aware; and (3) the interpretation of fromhex('-nan')
1003 didn't match that of float('-nan').
1004
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001005Library
1006-------
1007
Martin v. Löwisb6a748b2009-05-29 15:23:17 +00001008- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
1009
R. David Murrayfb123912009-05-28 18:19:00 +00001010- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
1011
R. David Murray1f1b9d32009-05-27 20:56:59 +00001012- Issue #6121: pydoc now ignores leading and trailing spaces in the
1013 argument to the 'help' function.
1014
Georg Brandlfaf41492009-05-26 18:31:11 +00001015- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
1016 arguments for strings with a space in them.
1017
Raymond Hettinger089ba7f2009-05-27 00:38:24 +00001018- collections.namedtuple() was not working with the following field
1019 names: cls, self, tuple, itemgetter, and property.
1020
Benjamin Peterson14a3dd72009-05-25 00:51:58 +00001021- In unittest, using a skipping decorator on a class is now equivalent to
1022 skipping every test on the class. The ClassTestSuite class has been removed.
1023
Martin v. Löwis70ccd162009-05-24 19:47:22 +00001024- Issue #6050: Don't fail extracting a directory from a zipfile if
1025 the directory already exists.
1026
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001027- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1028 than an int, which makes some operations possible under 64-bit Linux (e.g.
1029 DN_MULTISHOT with F_NOTIFY).
1030
Antoine Pitrou716c4442009-05-23 19:04:03 +00001031- Issue #5761: Add the name of the underlying file to the repr() of various
1032 IO objects.
1033
R. David Murraycaa27b72009-05-23 18:49:56 +00001034- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1035 by Musashi Tamura, tests by Marcin Bachry.
1036
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001037- Issue #1983: Fix functions taking or returning a process identifier to use
1038 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1039 a process identifier type wider than the standard C integer type.
1040
R. David Murray87e20742009-05-23 01:30:26 +00001041- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1042 Patch by Farhan Ahmad, test by Marcin Bachry.
1043
Antoine Pitrou6e610062009-05-15 17:04:50 +00001044- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1045 deepcopy()ing.
1046
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001047- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1048
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001049- Issue #5918: Fix a crash in the parser module.
1050
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001051- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1052
Antoine Pitroue4501852009-05-14 18:55:55 +00001053- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1054 library. This means, for example, that opening an UTF-16 text file in
1055 append mode doesn't add a BOM at the end of the file if the file isn't
1056 empty.
1057
R. David Murray74b89242009-05-13 17:33:03 +00001058- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1059 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1060 corrects a pydoc regression.
1061
R. David Murray99352742009-05-07 18:24:38 +00001062- Issue 5955: aifc's close method did not close the file it wrapped,
1063 now it does. This also means getfp method now returns the real fp.
1064
Benjamin Peterson932073a2009-05-23 16:14:33 +00001065Installation
1066------------
1067
1068- Issue #6047: fullinstall has been removed because Python 3's executable will
1069 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001070
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001071- Lib/smtpd.py is no longer installed as a script.
1072
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001073Extension Modules
1074-----------------
1075
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001076- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001077
Martin v. Löwise23c8682009-05-29 16:01:34 +00001078- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1079
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001080- Issue #6093: Fix off-by-one error in locale.strxfrm.
1081
Benjamin Peterson744af442009-05-23 18:51:49 +00001082- The _functools and _locale modules are now built into the libpython shared
1083 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001084
Antoine Pitrou20327222009-05-24 20:39:11 +00001085Build
1086-----
1087
1088- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1089 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1090 Clinton Roy.
1091
Brett Cannon1262e7c2009-05-11 01:47:11 +00001092Tests
1093-----
1094
1095- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1096 tests on darwin even when the OS was installed on a case-sensitive
1097 filesystem. Also fixed tests that should not be run when
1098 sys.dont_write_bytecode is true.
1099
1100
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001101What's New in Python 3.1 beta 1?
1102================================
1103
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001104*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001105
1106Core and Builtins
1107-----------------
1108
Mark Dickinson865e01a2009-05-07 16:37:01 +00001109- Issue #5914: Add new C API function PyOS_string_to_double, and
1110 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1111
Eric Smith741191f2009-05-06 13:08:15 +00001112- Issue #3382: float.__format__, complex.__format__, and %-formatting
1113 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1114 affects nan -> NAN and inf -> INF.
1115
Mark Hammond5a607a32009-05-06 08:04:54 +00001116- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1117 in all operations, including splitdrive, split, etc. splitunc() now issues
1118 a PendingDeprecation warning.
1119
Eric Smith63376222009-05-05 14:04:18 +00001120- Issue #5920: For float.__format__, change the behavior with the
1121 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1122 to be like 'g' but with at least one decimal point and with a
1123 default precision of 12. Previously, the behavior the same but with
1124 a default precision of 6. This more closely matches str(), and
1125 reduces surprises when adding alignment flags to the empty
1126 presentation type. This also affects the new complex.__format__ in
1127 the same way.
1128
Martin v. Löwis011e8422009-05-05 04:43:17 +00001129- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1130
R. David Murrayb18500d2009-05-04 22:59:07 +00001131- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1132 shadowed by classtype's, even if it was None. property now
1133 inserts the __doc__ into the subclass instance __dict__.
1134
Antoine Pitrou244651a2009-05-04 18:56:13 +00001135- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1136 sequences. Patch by Nick Barnes and Victor Stinner.
1137
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001138- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001139
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001140- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1141 received a new method, detach(). detach() disconnects the underlying stream
1142 from the buffer or text IO and returns it.
1143
Mark Dickinson33841c32009-05-01 15:37:04 +00001144- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1145 floats with absolute value over 1e50. Also remove length
1146 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1147 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001148
Eric Smith741191f2009-05-06 13:08:15 +00001149- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001150 format(complex(1, 2./3), '.5') now produces a sensible result.
1151
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001152- Issue #5864: Fix empty format code formatting for floats so that it
1153 never gives more than the requested number of significant digits.
1154
Eric Smith6dc46f52009-04-27 20:39:49 +00001155- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1156 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1157
Eric Smithcc32a112009-04-26 21:35:14 +00001158- Issue #5835: Deprecate PyOS_ascii_formatd.
1159
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001160- Issue #4971: Fix titlecase for characters that are their own
1161 titlecase, but not their own uppercase.
1162
Benjamin Peterson193152c2009-04-25 01:08:45 +00001163- Issue #5283: Setting __class__ in __del__ caused a segfault.
1164
Mark Dickinsonad476da2009-04-23 19:14:16 +00001165- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1166 z involves nans, infs or negative zeros.
1167
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001168- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001169
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001170- Issue #1869 (and many duplicates): make round(x, n) correctly
1171 rounded for a float x, by using the decimal <-> binary conversions
1172 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1173 consistently agrees with format(x, '.2f').
1174
Benjamin Petersonae937c02009-04-18 20:54:08 +00001175- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1176 some builtin types.
1177
Eric Smith0923d1d2009-04-16 20:16:10 +00001178- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1179
Eric Smith35e84722009-04-16 20:21:28 +00001180- Issue #5515: str.format() type 'n' combined with commas and leading
1181 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001182
1183- Implement PEP 378, Format Specifier for Thousands Separator, for
1184 floats.
1185
Mark Dickinson3370cce2009-04-17 22:40:53 +00001186- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001187 1e11, not 1e12. This avoids printing 13 significant digits in
1188 situations where only 12 of them are correct. Example problem
1189 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1190 long time.)
1191
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001192- Issue #1580: On most platforms, use a 'short' float repr: for a
1193 finite float x, repr(x) now outputs a string based on the shortest
1194 sequence of decimal digits that rounds to x. Previous behaviour was
1195 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001196 Another minor difference is that the new repr switches to
1197 exponential notation at 1e16 instead of the previous 1e17; this
1198 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001199
1200 There's a new sys attribute sys.float_repr_style, which takes
1201 the value 'short' to indicate that we're using short float repr,
1202 and 'legacy' if the short float repr isn't available for one
1203 reason or another.
1204
1205 The float repr change involves incorporating David Gay's 'perfect
1206 rounding' code into the Python core (it's in Python/dtoa.c). As a
1207 secondary consequence, all string-to-float and float-to-string
1208 conversions (including all float formatting operations) will be
1209 correctly rounded on these platforms.
1210
1211 See issue 1580 discussions for details of platforms for which
1212 this change does not apply.
1213
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001214- Issue #5759: float() didn't call __float__ on str subclasses.
1215
Georg Brandlabc38772009-04-12 15:51:51 +00001216- The string.maketrans() function is deprecated; there is a new static method
1217 maketrans() on the bytes and bytearray classes. This removes confusion about
1218 the types string.maketrans() is supposed to work with, and mirrors the
1219 methods available on the str class.
1220
R. David Murraydc6da8a2009-04-09 22:16:43 +00001221- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1222 its clarity and its speed.
1223
Matthias Klose091c7b12009-04-07 13:24:27 +00001224- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1225 to avoid compiler warnings.
1226
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001227- Issue #3739: The unicode-internal encoder now reports the number of characters
1228 consumed like any other encoder (instead of the number of bytes).
1229
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001230Installation
1231------------
1232
1233- Issue #5756: Install idle and pydoc with a 3 suffix.
1234
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001235Library
1236-------
1237
Martin v. Löwis403117a2009-05-24 19:19:17 +00001238- Issue #5311: bdist_msi can now build packages that do not depend on a
1239 specific Python version.
1240
Raymond Hettingereb816952009-05-29 01:22:18 +00001241- Issue #5150: IDLE's format menu now has an option to strip trailing
1242 whitespace.
1243
Vinay Sajipaffbd872009-06-11 10:11:47 +00001244- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001245 the right type checkings anymore.
1246
Thomas Heller00cfc372009-05-05 19:04:40 +00001247- Issue #4875: On win32, ctypes.util.find_library does no longer
1248 return directories.
1249
Georg Brandl243ad662009-05-05 09:00:19 +00001250- Issue #5142: Add the ability to skip modules while stepping to pdb.
1251
Georg Brandl991f9202009-05-05 08:31:54 +00001252- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1253 looking for files given by a relative filename.
1254
Georg Brandleaa84ef2009-05-05 08:14:33 +00001255- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1256 turtle demos in Demo/turtle.
1257
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001258- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1259 extracting a file to the root directory.
1260
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001261- Issue #5913: os.listdir() should fail for empty path on windows.
1262
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001263- Issue #5084: unpickling now interns the attribute names of pickled objects,
1264 saving memory and avoiding growth in size of subsequent pickles. Proposal
1265 and original patch by Jake McGuire.
1266
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001267- The json module now works exclusively with str and not bytes.
1268
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001269- Issue #3959: The ipaddr module has been added to the standard library.
1270 Contributed by Google.
1271
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001272- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1273 error when a named pipe is encountered, rather than blocking infinitely.
1274
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001275- Issue #5857: tokenize.tokenize() now returns named tuples.
1276
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001277- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1278
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001279- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1280 string is already in normalized form, by performing a quick check beforehand.
1281 Original patch by Rauli Ruohonen.
1282
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001283- Issue #5853: calling a function of the mimetypes module from several threads
1284 at once could hit the recursion limit if the mimetypes database hadn't been
1285 initialized before.
1286
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001287- Issue #5854: Updated __all__ to include some missing names and remove some
1288 names which should not be exported.
1289
Thomas Heller34596a92009-04-24 20:50:00 +00001290- Issue #3102: All global symbols that the _ctypes extension defines
1291 are now prefixed with 'Py' or '_ctypes'.
1292
1293- Issue #5041: ctypes does now allow pickling wide character.
1294
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001295- Issue #5812: For the two-argument form of the Fraction constructor,
1296 Fraction(m, n), m and n are permitted to be arbitrary Rational
1297 instances.
1298
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001299- Issue #5812: Fraction('1e6') is valid: more generally, any string
1300 that's valid for float() is now valid for Fraction(), with the
1301 exception of strings representing NaNs and infinities.
1302
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001303- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1304 bugs. Patch by Brian Quinlan.
1305
R. David Murray9e94ddf2009-04-13 17:06:33 +00001306- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1307 results in a handle_expt_event call, not handle_read_event, and POLLERR
1308 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1309 dispatcher now has an 'ignore_log_types' attribute for suppressing
1310 log messages, which is set to 'warning' by default.
1311
Matthias Klosea3d29e82009-04-07 13:13:10 +00001312- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1313 new arguments introduced in 2.5.
1314
Walter Dörwald1b08b302009-04-25 14:13:56 +00001315- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1316 makeunicodedata.py and regenerated the Unicode database (This fixes
1317 u'\u1d79'.lower() == '\x00').
1318
Matthias Klose535336f2009-04-07 13:49:45 +00001319Extension Modules
1320-----------------
1321
Benjamin Petersone04b6272009-05-04 22:25:21 +00001322- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1323 pwd.
1324
Mark Dickinsonea835e72009-04-19 20:40:33 +00001325- Issue #5463: In struct module, remove deprecated float coercion
1326 for integer type codes: struct.pack('L', 0.3) should now raise
1327 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1328 The version number has been bumped to 0.3.
1329
Matthias Klose535336f2009-04-07 13:49:45 +00001330- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1331 using Berkley-DB.
1332
Nick Coghlan47384702009-04-22 16:13:36 +00001333Tests
1334-----
1335
1336- Issue #5354: New test support function import_fresh_module() makes
1337 it easy to import both normal and optimised versions of modules.
1338 test_heapq and test_warnings have been adjusted to use it, tests for
1339 other modules with both C and Python implementations in the stdlib
1340 can be adjusted to use it over time.
1341
Walter Dörwald4ba80132009-04-25 12:48:43 +00001342- Issue #5837: Certain sequences of calls to set() and unset() for
1343 support.EnvironmentVarGuard objects restored the environment variables
1344 incorrectly on __exit__.
1345
Benjamin Petersonb173f782009-05-05 22:31:58 +00001346C-API
1347-----
1348
1349- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1350
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001351
Benjamin Petersond1735892009-03-07 18:46:21 +00001352What's New in Python 3.1 alpha 2?
1353=================================
1354
Benjamin Peterson88f14352009-04-04 21:06:52 +00001355*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001356
1357Core and Builtins
1358-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001359
Eric Smith1e1d7d22009-04-03 22:25:33 +00001360- Implement PEP 378, Format Specifier for Thousands Separator, for
1361 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001362
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001363- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1364
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001365- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1366 byte, and the 'C' code only accepts a unicode character.
1367
Georg Brandl406b3d82009-04-11 21:24:37 +00001368- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1369 when hitting the recursion limit under certain circumstances.
1370
Brett Cannon0759dd62009-04-01 18:13:07 +00001371- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1372
Georg Brandlab6f2f62009-03-31 04:16:10 +00001373- Fix a segfault when running test_exceptions with coverage, caused by
1374 insufficient checks in accessors of Exception.__context__.
1375
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001376- Issue #5604: non-ASCII characters in module name passed to
1377 imp.find_module() were converted to UTF-8 while the path is
1378 converted to the default filesystem encoding, causing nonsense.
1379
Benjamin Peterson09832742009-03-26 17:15:46 +00001380- Issue #5126: str.isprintable() returned False for space characters.
1381
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001382- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1383 the end sys.path, for compatibility with the system install of Python.
1384
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001385- Issue #4688: Add a heuristic so that tuples and dicts containing only
1386 untrackable objects are not tracked by the garbage collector. This can
1387 reduce the size of collections and therefore the garbage collection overhead
1388 on long-running programs, depending on their particular use of datatypes.
1389
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001390- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1391 improve its performance. Long divisions and remainder operations
1392 are now between 50% and 150% faster.
1393
Mark Dickinsonbd792642009-03-18 20:06:12 +00001394- Issue #4258: Make it possible to use base 2**30 instead of base
1395 2**15 for the internal representation of integers, for performance
1396 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1397 --enable-big-digits option to configure, which overrides the
1398 default. Add sys.int_info structseq to provide information about
1399 the internal format.
1400
Mark Dickinson081dfee2009-03-18 14:47:41 +00001401- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1402 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1403 and sizeof(Py_UNICODE) == 2.
1404
Eric Smith8ec90442009-03-14 12:29:34 +00001405- Issue #5237: Allow auto-numbered fields in str.format(). For
1406 example: '{} {}'.format(1, 2) == '1 2'.
1407
Antoine Pitrou652e7072009-03-13 19:25:20 +00001408- Issue #5392: when a very low recursion limit was set, the interpreter would
1409 abort with a fatal error after the recursion limit was hit twice.
1410
Matthias Klose042f1332009-04-04 14:32:42 +00001411- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1412 short file names.
1413
Benjamin Petersond1735892009-03-07 18:46:21 +00001414Library
1415-------
1416
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001417- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001418 mailbox.MH.get_message().
1419
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001420- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1421 error substitutions from non-strict codec error callbacks in
1422 incrementalencoder and StreamWriter.
1423
Georg Brandl33c28812009-04-01 23:07:29 +00001424- Issue #5656: Fix the coverage reporting when running the test suite with
1425 the -T argument.
1426
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001427- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1428
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001429- Issue #5624: Fix the _winreg module name still used in several modules.
1430
Benjamin Petersona1b49012009-03-31 23:11:32 +00001431- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1432
Jesse Nollera9314042009-03-31 22:36:44 +00001433- Issue #5619: Multiprocessing children disobey the debug flag and causes
1434 popups on windows buildbots. Patch applied to work around this issue.
1435
Jesse Noller32d68c22009-03-31 18:48:42 +00001436- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1437
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001438- Issue #5387: Fixed mmap.move crash by integer overflow.
1439
Jesse Nollerf8d00852009-03-31 03:25:07 +00001440- Issue #5261: Patch multiprocessing's semaphore.c to support context
1441 manager use: "with multiprocessing.Lock()" works now.
1442
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001443- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1444 bytes already but the failure was non-obvious.
1445
Jesse Noller7af4ef82009-03-30 16:47:15 +00001446- Issue #5177: Multiprocessing's SocketListener class now uses
1447 socket.SO_REUSEADDR on all connections so that the user no longer needs
1448 to wait 120 seconds for the socket to expire.
1449
Benjamin Peterson48e24782009-03-29 13:02:52 +00001450- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1451
Antoine Pitrou66994e12009-03-29 00:45:26 +00001452- Issue #1174606: Calling read() without arguments of an unbounded file
1453 (typically /dev/zero under Unix) could crash the interpreter.
1454
Benjamin Peterson59406a92009-03-26 17:10:29 +00001455- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1456 io.BufferedRandom have been deprecated for removal in Python 3.2.
1457
Lars Gustäbel42e00912009-03-22 20:34:29 +00001458- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1459 forever on incomplete input. That caused tarfile.open() to hang when used
1460 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1461 partial bzip2 compressed data.
1462
Mark Dickinson79f52032009-03-17 23:12:51 +00001463- Issue #2110: Add support for thousands separator and 'n' type
1464 specifier to Decimal.__format__
1465
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001466- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1467 '>' alignment characters.
1468
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001469- The error detection code in FileIO.close() could fail to reflect the `errno`
1470 value, and report it as -1 instead.
1471
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001472- Issue #5016: FileIO.seekable() could return False if the file position
1473 was negative when truncated to a C int. Patch by Victor Stinner.
1474
Mark Dickinsonae681df2009-03-21 10:26:31 +00001475Extension Modules
1476-----------------
1477
Benjamin Petersone099b372009-04-04 17:09:35 +00001478- Issue #5391: mmap now deals exclusively with bytes.
1479
Mark Dickinsonae681df2009-03-21 10:26:31 +00001480- Issue #5463: In struct module, remove deprecated overflow wrapping
1481 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001482 struct.error instead of returning b'\xff\xff\xff\xff'. The
1483 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1484 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001485
Benjamin Petersond1735892009-03-07 18:46:21 +00001486
Benjamin Petersona58a6262009-03-07 16:34:40 +00001487What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001488================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001489
Benjamin Petersona58a6262009-03-07 16:34:40 +00001490*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001491
1492Core and Builtins
1493-----------------
1494
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001495- The io module has been reimplemented in C for speed.
1496
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001497- Give dict views an informative __repr__.
1498
Eric Smith5e5c0db2009-02-20 14:25:03 +00001499- Issue #5247: Improve error message when unknown format codes are
1500 used when using str.format() with str, int, and float arguments.
1501
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001502- Issue #5249: time.strftime returned malformed string when format string
1503 contained non ascii character on windows.
1504
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001505- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1506 source has already been decoded into str.
1507
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001508- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1509 rotating the object pointer by 4 bits to the right.
1510
Mark Dickinson87ec0852009-02-09 17:15:59 +00001511- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1512 it now forces its argument to double before testing for infinity.
1513
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001514- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1515 returns a non-number type.
1516
Benjamin Peterson87618552009-02-08 15:00:52 +00001517- Issue #5182: Removed memoryview.__str__.
1518
Mark Dickinsonc008a172009-02-01 13:59:22 +00001519- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1520 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001521 the type definition cmpfunc. The tp_compare slot has been renamed
1522 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001523
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001524- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001525 were suppressing all exceptions. These include list() and bytearray().
1526
Mark Dickinson1124e712009-01-28 21:25:58 +00001527- Issue #4707: round(x, n) now returns an integer if x is an integer.
1528 Previously it returned a float.
1529
Antoine Pitroub52ec782009-01-25 16:34:23 +00001530- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1531 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1532 evaluation loop is compiled with a new dispatch mechanism which gives
1533 speedups of up to 20%, depending on the system, on various benchmarks.
1534
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001535- Issue #4874: Most builtin decoders now reject unicode input.
1536
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001537- Issue #4842: Don't allow trailing 'L' when constructing an integer
1538 from a string.
1539
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001540- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1541
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001542- Issue #4838: When a module is deallocated, free the memory backing the
1543 optional module state data.
1544
Mark Dickinson8055afd2009-01-17 10:04:45 +00001545- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1546 type to (void *).
1547
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001548- Issue #4935: The overflow checking code in the expandtabs() method common
1549 to str, bytes and bytearray could be optimized away by the compiler, letting
1550 the interpreter segfault instead of raising an error.
1551
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001552- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1553 __next__ method.
1554
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001555- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1556 function no longer attempt to call the __long__ slot to convert an object
1557 to an integer. Only the __int__ and __trunc__ slots are examined.
1558
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001559- Issue #4893: Use NT threading on CE.
1560
Martin v. Löwisec59d042009-01-12 07:59:10 +00001561- Issue #4915: Port sysmodule to Windows CE.
1562
Antoine Pitrouab868312009-01-10 15:40:25 +00001563- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1564 common cases are optimized thanks to a dedicated fast path and a moderate
1565 amount of loop unrolling.
1566
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001567- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1568 collecting the oldest generation) so that allocating lots of objects without
1569 destroying them does not show quadratic performance. Based on a proposal by
1570 Martin von Löwis at
1571 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1572
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001573- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001574 having been closed (for instance, a read() call could return some
1575 previously buffered data). Patch by Dmitry Vasiliev.
1576
Antoine Pitrou05608432009-01-09 18:53:14 +00001577- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1578 flag to work properly. Furthermore, when specifying -u, the text stdout
1579 and stderr streams have line-by-line buffering enabled (the default being
1580 to buffer arbitrary chunks of data).
1581
Raymond Hettinger35631532009-01-09 03:58:09 +00001582- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1583 instead of ints (reducing its size from 4 to 8 times thereby reducing
1584 Python's overall memory).
1585
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001586- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1587 an existing .py counterpart, override the co_filename attributes of all
1588 code objects if the original filename is obsolete (which can happen if the
1589 file has been renamed, moved, or if it is accessed through different paths).
1590 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1591
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001592- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1593 one byte. Also fixes the meaning of len() so that it returns the number of
1594 items, rather than the size in bytes.
1595
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001596- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1597
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001598- Issue #4747: When the terminal does not use utf-8, executing a script with
1599 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1600
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001601- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001602 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001603
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001604- Issue #3680: Reference cycles created through a dict, set or deque iterator
1605 did not get collected.
1606
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001607- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1608 where the tp_hash and tp_dict slots are both NULL.
1609
Georg Brandlccc47b62008-12-28 11:44:14 +00001610- Issue #4759: None is now allowed as the first argument of
1611 bytearray.translate(). It was always allowed for bytes.translate().
1612
Skip Montanaro80072cb2008-12-23 03:51:14 +00001613- Added test case to ensure attempts to read from a file opened for writing
1614 fail.
1615
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001616- Issue #3106: Speedup some comparisons (str/str and int/int).
1617
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001618- Issue #2183: Simplify and optimize bytecode for list, dict and set
1619 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1620
Antoine Pitrou621601a2008-12-17 23:18:19 +00001621- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1622 print elapsed times, not only when some objects are uncollectable /
1623 unreachable. Original patch by Neil Schemenauer.
1624
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001625- Issue #3439: Add a bit_length method to int.
1626
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001627- Issue #2173: When getting device encoding, check that return value of
1628 nl_langinfo is not the empty string. This was causing silent build
1629 failures on OS X.
1630
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001631- Issue #4597: Fixed several opcodes that weren't always propagating
1632 exceptions.
1633
1634- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001635 context manager returns a value that cannot be converted to a bool.
1636
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001637- Issue #4445: Replace "sizeof(PyBytesObject)" with
1638 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1639 bytes instances. On a typical machine this saves 3 bytes of memory
1640 (on average) per allocation of a bytes instance.
1641
Christian Heimesa872de52008-12-05 08:26:55 +00001642- Issue #4533: File read operation was dreadfully slow due to a slowly
1643 growing read buffer. Fixed by using the same growth rate algorithm as
1644 Python 2.x.
1645
Antoine Pitrou5504e892008-12-06 21:27:53 +00001646- Issue #4509: Various issues surrounding resize of bytearray objects to
1647 which there are buffer exports (e.g. memoryview instances).
1648
Georg Brandlf9734072008-12-07 15:30:06 +00001649- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1650 method on file objects with closefd=False. The file descriptor is still
1651 kept open but the file object behaves like a closed file. The ``FileIO``
1652 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001653
Antoine Pitroubc420402008-12-07 20:14:49 +00001654- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1655 larger than 1.
1656
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001657- Issue #4748: Lambda generators no longer return a value.
1658
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001659- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1660
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001661- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1662 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1663 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1664 of using the replace error handler in PyUnicode_DecodeUTF8().
1665
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001666Library
1667-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001668
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001669- Issue #7071: byte-compilation in Distutils is now done with respect to
1670 sys.dont_write_bytecode.
1671
Tarek Ziadé978cca62009-10-24 13:38:27 +00001672- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1673 raised. Initial patch by Ezio Melotti.
1674
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001675- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001676 Distutils.
1677
Tarek Ziadé31d46072009-09-21 13:55:19 +00001678- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1679
Tarek Ziadé165581c2009-09-09 08:48:07 +00001680- Issue #6163: Fixed HP-UX runtime library dir options in
1681 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1682 Michael Haubenwallner.
1683
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001684- Issue #6693: New functions in site.py to get user/global site packages paths.
1685
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001686- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1687 opening an empty or very small file.
1688
1689- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001690 behavior is similar when used with -O.
1691
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001692- unittest has been split up into a package. All old names should still work.
1693
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001694- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1695 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1696 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1697 for the obsolete get_versions() functions.
1698
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001699- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1700
1701- Issue #6314: logging: Extra checks on the "level" argument in more places.
1702
1703- Issue #2622: Fixed an ImportError when importing email.messsage from a
1704 standalone application built with py2exe or py2app.
1705
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001706- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001707
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001708- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001709 attribute.
1710
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001711- Issue #6413: Fixed the log level in distutils.dist for announce.
1712
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001713- Issue #6403: Fixed package path usage in build_ext.
1714
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001715- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1716 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1717 descriptor errors
1718
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001719- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001720 extension in a subdirectory if the extension name had dots.
1721
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001722- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001723 unixcompiler. Original patch by Sridhar Ratnakumar.
1724
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001725- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1726 httplib, allowing the usage of http_proxy.
1727
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001728- Issue #6287: Added the license field in Distutils documentation.
1729
Tarek Ziadéff543362009-06-11 09:25:41 +00001730- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1731
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001732- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1733 in Makefiles. This prevents compile errors when using syntax like:
1734 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1735
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001736- Issue #6131: test_modulefinder leaked when run after test_distutils.
1737 Patch by Hirokazu Yamamoto.
1738
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001739- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1740
Vinay Sajipaffbd872009-06-11 10:11:47 +00001741- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001742 and tests on pywin32 by Tim Golden.
1743
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001744- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1745
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001746- Issue #6046: Fixed the library extension when distutils build_ext is used
1747 inplace. Initial patch by Roumen Petrov.
1748
Vinay Sajipaffbd872009-06-11 10:11:47 +00001749- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001750 subcommand.
1751
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001752- Issue #6022: a test file was created in the current working directory by
1753 test_get_outputs in Distutils.
1754
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001755- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1756 inplace option. Initial patch by kxroberto.
1757
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001758- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1759 for old-style extensions.
1760
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001761- Issue #5976: Fixed Distutils test_check_environ.
1762
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001763- Issue #5941: Distutils build_clib command was not working anymore because
1764 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1765 Makefile besides AR and make Distutils use it. Original patch by David
1766 Cournapeau.
1767
R. David Murrayb507d2e2009-04-29 15:34:32 +00001768- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1769
Vinay Sajipaffbd872009-06-11 10:11:47 +00001770- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001771 anymore.
1772
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001773- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001774 sysconfig.get_config_vars.
1775
Tarek Ziadé23336082009-04-25 12:39:56 +00001776- Issue #4951: Fixed failure in test_httpservers.
1777
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001778- Issue #5795: Fixed test_distutils failure on Debian ppc.
1779
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001780- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1781
Georg Brandl1f9fa312009-04-27 16:42:58 +00001782- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1783 a value in SafeConfigParser.
1784
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001785- Issue #5732: added a new command in Distutils: check.
1786
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001787- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001788 platforms. Initial patch by Paul Moore.
1789
Tarek Ziadéf6370502009-04-05 22:57:21 +00001790- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1791 Initial fix by Steven Bethard.
1792
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001793- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1794 Initial fix by Wayne Davison.
1795
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001796- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001797
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001798- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001799
Brett Cannonf47e84c2009-04-01 16:06:01 +00001800- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1801 instead of performing them in functions. Helps prevent import deadlocking in
1802 threads.
1803
R. David Murraye59482e2009-04-01 03:42:00 +00001804- Issue #2522: locale.format now checks its first argument to ensure it has
1805 been passed only one pattern, avoiding mysterious errors where it appeared
1806 that it was failing to do localization.
1807
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001808- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1809 Brandl.
1810
Antoine Pitrou350370c2009-03-14 00:13:13 +00001811- Issue #1222: locale.format() bug when the thousands separator is a space
1812 character.
1813
Tarek Ziadé516db942009-03-11 12:52:00 +00001814- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1815 Tim Golden.
1816
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001817- collections.deque() objects now have a read-only attribute called maxlen.
1818
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001819- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1820 it is has been populated and properly configured in order to prevent
1821 window flashing.
1822
Guilherme Polo56f5be52009-03-07 01:54:57 +00001823- Issue #4792: Prevent a segfault in _tkinter by using the
1824 guaranteed to be safe interp argument given to the PythonCmd in place of
1825 the Tcl interpreter taken from a PythonCmd_ClientData.
1826
1827- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1828
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001829- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1830 Original patch by Akira Kitada.
1831
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001832- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1833
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001834- Issue #5385: Fixed mmap crash after resize failure on windows.
1835
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001836- Issue #5179: Fixed subprocess handle leak on failure on windows.
1837
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001838- PEP 372: Added collections.OrderedDict().
1839
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001840- The _asdict() for method for namedtuples now returns an OrderedDict().
1841
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001842- configparser now defaults to using an ordered dictionary.
1843
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001844- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1845 import guess_extension`` was used.
1846
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001847- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1848 with same tagname but larger size than first map. (Windows)
1849
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001850- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1851 overrun.
1852
Tarek Ziadéf0721222009-02-28 10:16:43 +00001853- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1854 bdist_rpm command.
1855
1856- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1857
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001858- Issue #5052: make Distutils compatible with 2.3 again.
1859
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001860- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1861 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001862
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001863- Issue #5287: Add exception handling around findCaller() call to help out
1864 IronPython.
1865
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001866- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1867 The file was resized to wrong size.
1868
1869- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1870
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001871- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001872 from the package_data and the data_files metadata.
1873
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001874- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001875 support.TempdirManager, to avoid writing in the tests directory.
1876
Tarek Ziadé68c50952009-02-13 23:04:17 +00001877- Issue #4524: distutils build_script command failed with --with-suffix=3.
1878 Initial patch by Amaury Forgeot d'Arc.
1879
Tarek Ziadé811d6242009-02-13 22:26:15 +00001880- Issue #2461: added tests for distutils.util
1881
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001882- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1883 which inherited from numbers.py which did not have __slots__ defined. The
1884 numbers hierarchy now has its own __slots__ declarations.
1885
Antoine Pitroub353c122009-02-11 00:39:14 +00001886- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1887 encoding.
1888
Thomas Heller465c8022009-02-10 18:59:04 +00001889- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1890 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1891
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001892- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1893 under NT and OS2. Patch by Philip Jenvey.
1894
Brett Cannonbefb14f2009-02-10 02:10:16 +00001895- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1896 to be recreated. This avoids a timing hole thanks to the old reliance on the
1897 ctime of the files involved.
1898
Guilherme Polob681df42009-02-09 22:33:59 +00001899- Issue #5122: Synchronize tk load failure check to prevent a potential
1900 deadlock.
1901
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001902- Issue #1818: collections.namedtuple() now supports a keyword argument
1903 'rename' which lets invalid fieldnames be automatically converted to
1904 positional names in the form, _1, _2, ...
1905
Guilherme Poloae098992009-02-09 16:44:24 +00001906- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1907
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001908- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1909 public documented method ``ZipImporter.get_filename()``.
1910
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001911- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1912 the execution of packages by looking for and executing a ``__main__``
1913 submodule when a package name is supplied. Initial patch by Andi
1914 Vajda.
1915
Guilherme Polo491aee22009-02-06 23:16:11 +00001916- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1917 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1918 Tkapp_Call when calling from a thread different than the one that created
1919 the Tcl interpreter. Patch by Robert Hancock.
1920
Eric Smith0e5b5622009-02-06 01:32:42 +00001921- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1922 Ross Light.
1923
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001924- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001925 environment/Makefile. Patch by Douglas Greiman.
1926
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001927- Issue #1276768: The verbose option was not used in the code of
1928 distutils.file_util and distutils.dir_util.
1929
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001930- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001931 --enabled-shared activated. Initial patch by Dave Peterson.
1932
Guilherme Polo7f423952009-02-02 21:17:09 +00001933- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1934
Raymond Hettinger85602262009-02-03 04:19:10 +00001935- The shelve module now defaults to pickle protocol 3.
1936
Brett Cannone61426e2009-01-30 01:31:34 +00001937- Fix a bug in the trace module where a bytes object from co_lnotab had its
1938 items being passed through ord().
1939
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001940- Issue #2047: shutil.move() could believe that its destination path was
1941 inside its source path if it began with the same letters (e.g. "src" vs.
1942 "src.new").
1943
Guilherme Polo5f238482009-01-28 14:41:10 +00001944- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1945
Raymond Hettinger89e12962009-01-26 02:09:03 +00001946- Removed isSequenceType(), isMappingType, and isNumberType() from the
1947 operator module; use the abstract base classes instead. Also removed
1948 the repeat() function; use mul() instead.
1949
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001950- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001951 collections.namedtuple() relied on __name__ being defined.
1952
1953- Backport importlib from Python 3.1. Only the import_module() function has
1954 been backported to help facilitate transitions from 2.7 to 3.1.
1955
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001956- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1957 the tar file was overriden by the gztar one.
1958
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001959- Issue #4863: distutils.mwerkscompiler has been removed.
1960
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001961- Added a new itertools functions: combinations_with_replacement()
1962 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001963
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001964- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001965 allowed non-integer arguments.
1966
Jesse Noller41faa542009-01-25 03:45:53 +00001967- Fix and properly document the multiprocessing module's logging
1968 support, expose the internal levels and provide proper usage
1969 examples.
1970
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001971- Issue #1672332: fix unpickling of subnormal floats, which was
1972 producing a ValueError on some platforms.
1973
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001974- Issue #3881: Help Tcl to load even when started through the
1975 unreadable local symlink to "Program Files" on Vista.
1976
Martin v. Löwis59e47792009-01-24 14:10:07 +00001977- Issue #4710: Extract directories properly in the zipfile module;
1978 allow adding directories to a zipfile.
1979
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001980- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001981 --without-threads argument. When this occurs, _multiprocessing will
1982 be disabled, and not compiled.
1983
Antoine Pitrou08838b62009-01-21 00:55:13 +00001984- Issue #5008: When a file is opened in append mode with the new IO library,
1985 do an explicit seek to the end of file (so that e.g. tell() returns the
1986 file size rather than 0). This is consistent with the behaviour of the
1987 traditional 2.x file object.
1988
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001989- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1990 parameter was set.
1991
Mark Dickinson8dd05142009-01-20 20:43:58 +00001992- Issue #4842: Always append a trailing 'L' when pickling longs using
1993 pickle protocol 0. When reading, the 'L' is optional.
1994
Brett Cannonafccd632009-01-20 02:21:27 +00001995- Add the importlib package.
1996
Jesse Noller9a0fc972009-01-18 21:12:58 +00001997- Issue #4301: Patch the logging module to add processName support, remove
1998 _check_logger_class from multiprocessing.
1999
Jesse Noller1cbb17a2009-01-18 19:45:18 +00002000- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002001 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00002002
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00002003- Issue #4959: inspect.formatargspec now works for keyword only arguments
2004 without defaults.
2005
Jesse Noller6214edd2009-01-19 16:23:53 +00002006- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
2007 for *nix machines for negative handles and large int handles. Without this check
2008 it is possible to segfault the interpreter.
2009
Jesse Nollerb0516a62009-01-18 03:11:38 +00002010- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
2011 in sharedctypes.py.
2012
2013- Issue #1225107: inspect.isclass() returned True for instances with a custom
2014 __getattr__.
2015
Gregory P. Smithde3369f2009-01-12 04:50:11 +00002016- Issue #3826 and #4791: The socket module now closes the underlying socket
2017 appropriately when it is being used via socket.makefile() objects
2018 rather than delaying the close by waiting for garbage collection to do it.
2019
Raymond Hettingerb8baf632009-01-14 02:20:07 +00002020- Issue #1696199: Add collections.Counter() for rapid and convenient
2021 counting.
2022
Antoine Pitrou308705e2009-01-10 16:22:51 +00002023- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
2024
Thomas Heller5e4e4272009-01-08 09:34:20 +00002025- Issue #4867: Fixed a crash in ctypes when passing a string to a
2026 function without defining argtypes.
2027
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00002028- Issue #4272: Add an optional argument to the GzipFile constructor to override
2029 the timestamp in the gzip stream. The default value remains the current time.
2030 The information can be used by e.g. gunzip when decompressing. Patch by
2031 Jacques Frechet.
2032
Mark Dickinson315a20a2009-01-04 21:34:18 +00002033- Restore Python 2.3 compatibility for decimal.py.
2034
Guilherme Polo3f5f8222009-01-03 22:00:39 +00002035- Issue #3638: Remove functions from _tkinter module level that depend on
2036 TkappObject to work with multiple threads.
2037
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002038- Issue #4718: Adapt the wsgiref package so that it actually works with
2039 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00002040 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
2041
Raymond Hettinger771ed762009-01-03 19:20:32 +00002042- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
2043 to the decimal module.
2044
Georg Brandl3a9b0622009-01-03 22:07:57 +00002045- Fractions.from_float() no longer loses precision for integers too big to
2046 cast as floats.
2047
Mark Dickinsonf9236412009-01-02 23:23:21 +00002048- Issue #4812: add missing underscore prefix to some internal-use-only
2049 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
2050
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002051- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00002052 did unnecessary work in the common case where no key function was specified.
2053
Georg Brandlb1441c72009-01-03 22:33:39 +00002054- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
2055 the function is not a generator.
2056
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002057- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
2058 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00002059
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002060- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00002061 function. Original patch by Thomas Heller.
2062
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00002063- Issue #3767: Convert Tk object to string in tkColorChooser.
2064
Martin v. Löwise354d782008-12-29 16:03:04 +00002065- Issue #3248: Allow placing ScrolledText in a PanedWindow.
2066
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00002067- Issue #4444: Allow assertRaises() to be used as a context handler, so that
2068 the code under test can be written inline if more practical.
2069
Georg Brandldb7b6b92009-01-01 15:53:14 +00002070- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2071 works as expected in the interactive environment.
2072
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002073- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2074 Gabriel Genellina.
2075
Antoine Pitrou180a3362008-12-14 16:36:46 +00002076- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2077 boundary.
2078
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002079- Issue #4223: inspect.getsource() will now correctly display source code
2080 for packages loaded via zipimport (or any other conformant PEP 302
2081 loader). Original patch by Alexander Belopolsky.
2082
2083- Issue #4201: pdb can now access and display source code loaded via
2084 zipimport (or any other conformant PEP 302 loader). Original patch by
2085 Alexander Belopolsky.
2086
2087- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2088 302 conformant loader) will now work correctly in most cases (they
2089 are still subject to the constraints that exist for all code running
2090 from inside a module loaded via a PEP 302 loader and attempting to
2091 perform IO operations based on __file__). Original patch by
2092 Alexander Belopolsky.
2093
2094- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2095 allows backporting to maintenance branches. Original patch by
2096 Alexander Belopolsky.
2097
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002098- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2099 a non-ASCII letter.
2100
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002101- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2102
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002103- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2104 codec cannot be found. This is for compatibility with the builtin behavior.
2105
Facundo Batista708d5812008-12-11 04:20:07 +00002106- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2107 give correct results in the case where one argument is a quiet NaN
2108 and the other is a finite number that requires rounding.
2109
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002110- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2111 libs.
2112
Georg Brandlf9734072008-12-07 15:30:06 +00002113- Added the subprocess.check_call_output() convenience function to get output
2114 from a subprocess on success or raise an exception on error.
2115
2116- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2117 support unusual filenames (such as those containing semi-colons) in
2118 Content-Disposition headers.
2119
2120- Issue #4384: Added logging integration with warnings module using
2121 captureWarnings(). This change includes a NullHandler which does nothing;
2122 it will be of use to library developers who want to avoid the "No handlers
2123 could be found for logger XXX" message which can appear if the library user
2124 doesn't configure logging.
2125
2126- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2127 exception.
2128
Georg Brandleee31162008-12-07 15:15:22 +00002129- Issue #4529: fix the parser module's validation of try-except-finally
2130 statements.
2131
2132- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2133 not a malformed option.
2134
2135- Added the subprocess.check_output() convenience function to get output
2136 from a subprocess on success or raise an exception on error.
2137
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002138- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2139 the corresponding tests now pass.
2140
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002141- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2142 it was calling the wrong open() function.
2143
Fred Drake9a0a65b2008-12-04 19:24:50 +00002144- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2145 support unusual filenames (such as those containing semi-colons) in
2146 Content-Disposition headers.
2147
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002148- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2149 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2150
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002151- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2152 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2153 and getservbyport().
2154
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002155- Windows locale mapping updated to Vista.
2156
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002157Tools/Demos
2158-----------
2159
Antoine Pitrou8a681222009-02-07 17:13:31 +00002160- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2161 and make it 2.6-compatible.
2162
Guilherme Poloa7d27972009-01-28 16:06:51 +00002163- Ttk demos added in Demo/tkinter/ttk/
2164
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002165- Issue #4677: add two list comprehension tests to pybench.
2166
Georg Brandlb1441c72009-01-03 22:33:39 +00002167
2168Build
2169-----
2170
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002171- Issue #6094: Build correctly with Subversion 1.7.
2172
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002173- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2174
Antoine Pitrou8966c992009-05-01 21:18:27 +00002175- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2176 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2177
Matthias Klose55708cc2009-04-30 08:06:49 +00002178- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002179 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002180
Matthias Klose906785c2009-02-22 23:18:38 +00002181- Link the shared python library with $(MODLIBS).
2182
Martin v. Löwis11f72102009-02-10 13:13:30 +00002183- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2184
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002185- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2186
Martin v. Löwise97637d2009-01-11 09:45:11 +00002187- Issue #4895: Use _strdup on Windows CE.
2188
Georg Brandlb1441c72009-01-03 22:33:39 +00002189- Issue #4472: "configure --enable-shared" now works on OSX
2190
2191- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2192
2193- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2194
2195- Issue #4289: Remove Cancel button from AdvancedDlg.
2196
2197- Issue #1656675: Register a drop handler for .py* files on Windows.
2198
2199- Issue #4120: Exclude manifest from extension modules in VS2008.
2200
2201- Issue #4091: Install pythonxy.dll in system32 again.
2202
2203- Issue #4018: Disable "for me" installations on Vista.
2204
2205- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2206
2207- Issue #4204: Fixed module build errors on FreeBSD 4.
2208
2209
2210C-API
2211-----
2212
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002213- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2214 NUL: Bogus TypeError detail string.
2215
Mark Dickinson21776072009-02-10 16:13:25 +00002216- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2217 for negative arguments. Previously, it raised TypeError.
2218
Georg Brandlb1441c72009-01-03 22:33:39 +00002219- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2220
2221- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2222 the GIL is released, or owned by another thread.
2223
2224- Issue #4122: On Windows, fix a compilation error when using the
2225 Py_UNICODE_ISSPACE macro in an extension module.
2226
2227
Mark Dickinsone675f082008-12-11 21:56:00 +00002228Extension Modules
2229-----------------
2230
Gregory P. Smith365a1862009-02-12 07:35:29 +00002231- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2232 supporting objects as input no matter how it was compiled (built in
2233 implementations or external openssl library).
2234
Mark Dickinson29500f62009-01-15 15:36:10 +00002235- Issue #4397: Fix occasional test_socket failure on OS X.
2236
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002237- Issue #4279: Fix build of parsermodule under Cygwin.
2238
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002239- Issue #4751: hashlib now releases the GIL when hashing large buffers
2240 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2241 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2242
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002243- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2244
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002245- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2246 or decompress several streams at once on multi-CPU systems. Also, the GIL
2247 is now released when computing the CRC of a large buffer. Patch by ebfe.
2248
Georg Brandlb1441c72009-01-03 22:33:39 +00002249- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2250
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002251- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2252
Mark Dickinsone675f082008-12-11 21:56:00 +00002253- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2254 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002255
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002256- Issue #4583: array.array would not always prohibit resizing when a buffer
2257 has been exported, resulting in an interpreter crash when accessing the
2258 buffer.
2259
Martin v. Löwis841edad2008-11-30 10:36:49 +00002260
Jack Diederiche0cbd692009-04-01 04:27:09 +00002261- Issue #5228: Make functools.partial objects can now be pickled.
2262
Guilherme Polo9de29af2009-01-28 20:40:48 +00002263Tests
2264-----
2265
Antoine Pitrou88909542009-06-29 13:54:42 +00002266- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2267 regression tests in parallel, shortening the total runtime.
2268
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002269- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2270 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2271 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2272 skip the tests if DISPLAY is defined but can't be used.
2273
R. David Murraya21e4ca2009-03-31 23:16:50 +00002274- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002275 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002276 from test support, which does the conversion.
2277
Guilherme Polo9de29af2009-01-28 20:40:48 +00002278- Issue #5083: New 'gui' resource for regrtest.
2279
2280
Brett Cannon7317c1e2008-11-25 19:19:17 +00002281Docs
2282----
2283
Georg Brandl52b92cc2008-05-25 09:43:03 +00002284
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002285**(For information about older versions, consult the HISTORY file.)**