blob: cc37c8c5d3b1b807c289ea286ddf76f175f7592c [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 Smithabb28c62010-02-23 00:22:24 +000015=======
16- Issue #6902: Fix problem with built-in types format incorrectly with
17 0 padding.
18
Eric Smith4e260c52010-02-22 18:54:44 +000019- Issue #7988: Fix default alignment to be right aligned for
20 complex.__format__. Now it matches other numeric types.
21
Eric Smith68af50b2010-02-22 14:58:30 +000022- Issue #5988: Remove deprecated functions PyOS_ascii_formatd,
23 PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string
24 and PyOS_string_to_double instead. See issue #5835 for the original
25 deprecations.
26
Antoine Pitrou05b7c562010-02-02 22:47:00 +000027- Issue #7385: Fix a crash in `MemoryView_FromObject` when
28 `PyObject_GetBuffer` fails. Patch by Florent Xicluna.
29
Mark Dickinsonbc099642010-01-29 17:27:24 +000030- Issue #7788: Fix an interpreter crash produced by deleting a list
31 slice with very large step value.
32
Eric Smithf7bb5782010-01-27 00:44:57 +000033- Issue #7766: Change sys.getwindowsversion() return value to a named
34 tuple and add the additional members returned in an OSVERSIONINFOEX
35 structure. The new members are service_pack_major, service_pack_minor,
36 suite_mask, and product_type.
37
Antoine Pitroufc8d6f42010-01-17 12:38:54 +000038- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
39 could crash in many places because of the PyByteArray_AS_STRING() macro
40 returning NULL. The macro now returns a statically allocated empty
41 string instead.
42
Antoine Pitroub7fbcd32010-01-16 18:37:38 +000043- Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`,
44 where the right hand operand is a set of constants, by turning the set into
45 a frozenset and pre-building it as a constant. The comparison operation
46 is made against the constant instead of building a new set each time it is
47 executed (a similar optimization already existed which turned a list of
48 constants into a pre-built tuple). Patch and additional tests by Dave
49 Malcolm.
50
Antoine Pitrouf2c54842010-01-13 08:07:53 +000051- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
52 methods of bytes, bytearray and unicode objects by using a common
53 implementation based on stringlib's fast search. Patch by Florent Xicluna.
54
Mark Dickinson45b63652010-01-16 18:10:25 +000055- Issue #7632: Fix various str -> float conversion bugs present in 2.7
56 alpha 2, including: (1) a serious 'wrong output' bug that could
57 occur for long (> 40 digit) input strings, (2) a crash in dtoa.c
58 that occurred in debug builds when parsing certain long numeric
Mark Dickinsonc4f18682010-01-17 14:39:12 +000059 strings corresponding to subnormal values, (3) a memory leak for
60 some values large enough to cause overflow, and (4) a number of
61 flaws that could lead to incorrectly rounded results.
Mark Dickinson81612e82010-01-12 23:04:19 +000062
Benjamin Petersonaea44282010-01-04 01:10:28 +000063- The __complex__ method is now looked up on the class of instances to make it
64 consistent with other special methods.
65
Antoine Pitrouda2ecaf2010-01-02 21:40:36 +000066- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
67 `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
68
Benjamin Petersond12362a2009-12-30 19:44:54 +000069- Issue #7604: Deleting an unset slotted attribute did not raise an
70 AttributeError.
71
Mark Dickinson9ab44b52009-12-30 16:22:49 +000072- Issue #7534: Fix handling of IEEE specials (infinities, nans,
73 negative zero) in ** operator. The behaviour now conforms to that
74 described in C99 Annex F.
75
Mark Dickinsoncbb62742009-12-27 15:09:50 +000076- Issue #1811: improve accuracy and cross-platform consistency for
77 true division of integers: the result of a/b is now correctly
78 rounded for ints a and b (at least on IEEE 754 platforms), and in
79 particular does not depend on the internal representation of an int.
80
Ronald Oussoren6f6c5622009-12-24 14:03:19 +000081- Issue #6834: replace the implementation for the 'python' and 'pythonw'
82 executables on OSX.
83
84 These executables now work properly with the arch(1) command:
85 ``arch -ppc python`` will start a universal binary version of python
86 in PPC mode (unlike previous releases).
87
Antoine Pitrou6b7dfc92009-12-12 19:18:27 +000088- Issue #7466: segmentation fault when the garbage collector is called
89 in the middle of populating a tuple. Patch by Florent Xicluna.
90
Amaury Forgeot d'Arc64f3ca42009-12-01 21:59:18 +000091- Issue #7419: setlocale() could crash the interpreter on Windows when called
92 with invalid values.
93
Amaury Forgeot d'Arc7d0bddd2009-11-30 00:08:56 +000094- Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+"
95 mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z).
96
Ronald Oussoren3c1928a2009-11-19 17:15:31 +000097- Issue #7085: Fix crash when importing some extensions in a thread
98 on MacOSX 10.6.
99
Philip Jenvey1309adb2009-11-17 03:43:14 +0000100- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
101
Mark Dickinson6f1d0492009-11-15 13:58:49 +0000102- Issue #6970: Remove redundant calls when comparing objects that don't
103 implement the relevant rich comparison methods.
104
Mark Dickinsond550c9a2009-11-15 09:57:26 +0000105- Issue #7298: fixes for range and reversed(range(...)). Iteration
106 over range(a, b, c) incorrectly gave an empty iterator when a, b and
107 c fit in C long but the length of the range did not. Also fix
108 several cases where reversed(range(a, b, c)) gave wrong results, and
109 fix a refleak for reversed(range(a, b, c)) with large arguments.
110
Raymond Hettingerfc438512009-11-01 20:55:33 +0000111- Issue #7244: itertools.izip_longest() no longer ignores exceptions
112 raised during the formation of an output tuple.
113
Benjamin Petersonb2e796a2009-10-28 21:59:39 +0000114- Issue #3297: On wide unicode builds, do not split unicode characters into
115 surrogates.
116
Mark Dickinsonf9724882009-10-26 21:51:18 +0000117- Remove length limitation when constructing a complex number from a string.
118
Mark Dickinson27a87a22009-10-25 20:43:34 +0000119- Issue #1087418: Boost performance of bitwise operations for longs.
120
Antoine Pitroub6ef9632009-10-24 20:47:05 +0000121- Support for AtheOS has been completely removed from the code base. It was
122 disabled since Python 3.0.
123
124- Support for several legacy threading libraries has been disabled. These
125 libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code
126 will be entirely removed in 3.3.
127
Raymond Hettingeraf7adad2009-10-22 11:22:50 +0000128- Peephole constant folding had missed UNARY_POSITIVE.
129
Antoine Pitrou011bd622009-10-20 21:52:47 +0000130- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
131 fixes the problem of some exceptions being thrown at shutdown when the
132 interpreter is killed. Patch by Adam Olsen.
133
Antoine Pitrou671141d2009-10-19 19:37:25 +0000134- Issue #7147: Remove support for compiling Python without complex number
Skip Montanaroba1e0f42009-10-18 14:25:35 +0000135 support.
136
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000137- Issue #7120: logging: Removed import of multiprocessing which is causing
138 crash in GAE.
139
Neil Schemenauere441cb72009-10-14 19:14:38 +0000140- Issue #1754094: Improve the stack depth calculation in the compiler.
141 There should be no other effect than a small decrease in memory use.
142 Patch by Christopher Tur Lesniewski-Laas.
143
Antoine Pitrou403ce782009-10-14 17:14:16 +0000144- Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when
Antoine Pitrou671141d2009-10-19 19:37:25 +0000145 using byte values greater than 127. Patch by Derk Drukker.
Antoine Pitrou403ce782009-10-14 17:14:16 +0000146
Amaury Forgeot d'Arc7d520792009-10-06 21:03:20 +0000147- Issue #1571184: The Unicode database contains properties for more characters.
148 The tables for code points representing numeric values, white spaces or line
149 breaks are now generated from the official Unicode Character Database files,
150 and include information from the Unihan.txt file.
151
Mark Dickinson2683ab02009-09-29 19:21:35 +0000152- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
153 of producing internally inconsistent Python longs.
154
Philip Jenvey26713ca2009-09-29 04:57:18 +0000155- Issue #6990: Fix threading.local subclasses leaving old state around
156 after a reference cycle GC which could be recycled by new locals.
157
Benjamin Peterson4905e802009-09-27 02:43:28 +0000158- Issue #5460: Fix an ambiguity in the grammar.
159
Mark Dickinson3e124ae2009-09-22 21:47:24 +0000160- Issue #1766304: Improve performance of membership tests on range objects.
161
Mark Dickinson0a1efd02009-09-16 21:23:34 +0000162- Issue #6713: Improve performance of integer -> string conversions.
163
Mark Dickinson54a3db92009-09-06 10:19:23 +0000164- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
165
Amaury Forgeot d'Arcccd686a2009-08-29 23:00:38 +0000166- Issue #6750: A text file opened with io.open() could duplicate its output
167 when writing from multiple threads at the same time.
168
Benjamin Peterson14327712009-08-15 13:23:05 +0000169- Issue #6707: dir() on an uninitialized module caused a crash.
170
Georg Brandl953152f2009-07-22 12:03:59 +0000171- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
172
Raymond Hettingere805ecc2009-07-27 20:16:37 +0000173- Issue #6573: set.union() stopped processing inputs if an instance of self
174 occurred in the argument chain.
175
R. David Murray046f7232009-07-19 02:22:05 +0000176- Issue #6070: On posix platforms import no longer copies the execute bit
177 from the .py file to the .pyc file if it is set.
178
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +0000179- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
180
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +0000181- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
182 object, and not an int. Fix the corresponding error message, and the
183 documentation.
184
Benjamin Petersonf1664ae2009-07-01 01:28:55 +0000185- The deprecated PyCObject has been removed.
186
Mark Dickinson835a6c82009-06-30 15:45:17 +0000187- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
188 This fixes a build failure on HP-UX: int32_t and uint32_t are
189 defined in inttypes.h instead of stdint.h on that platform.
190
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +0000191- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +0000192 the 'surrogateescape' error handler, a string which contains unpaired
193 surrogates.
194
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +0000195- Issue #4856: Remove checks for win NT.
196
Alexandre Vassalottieb6f8de2009-12-31 03:56:09 +0000197- Issue #6687: PyBytes_FromObject() no longer accepts an integer as its
198 argument to construct a null-initialized bytes object.
199
Alexandre Vassalottic36c3782010-01-09 20:35:09 +0000200- Issue #1023290: Add from_bytes() and to_bytes() methods to integers.
201 These methods allow the conversion of integers to bytes, and vice-versa.
202
Alexandre Vassalotti41f58a72010-01-12 01:23:09 +0000203- Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes
204 instances from being copied with copy.copy(), and bytes subclasses
205 from being pickled properly.
206
Benjamin Peterson466a7822009-07-02 21:44:01 +0000207C-API
208-----
209
Mark Dickinson93f562c2010-01-30 10:30:15 +0000210- Issue #7767: New function PyLong_AsLongLongAndOverflow added,
211 analogous to PyLong_AsLongAndOverflow.
212
Benjamin Peterson8667a9b2010-01-09 21:45:28 +0000213- Make PyUnicode_CompareWithASCIIString return not equal if the Python string
214 has '\0' at the end.
215
Mark Dickinsonde604012010-01-01 19:27:32 +0000216- Issue #5080: The argument parsing functions PyArg_ParseTuple,
217 PyArg_ParseTupleAndKeywords, PyArg_VaParse,
218 PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a
219 DeprecationWarning for float arguments passed with the 'L' format
220 code. This will become a TypeError in a future version of Python,
221 to match the behaviour of the other integer format codes.
222
Georg Brandl1e28a272009-12-28 08:41:01 +0000223- Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added.
224
Mark Dickinsonf08173b2009-12-03 10:59:46 +0000225- Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments)
226 in PyArg_ParseTupleAndKeywords.
227
Mark Dickinson0b2b2322009-12-04 11:32:26 +0000228- Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V)
Mark Dickinson6ce4a9a2009-11-16 17:00:11 +0000229 and PyErr_Format, on machines with HAVE_LONG_LONG defined.
230
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +0000231- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
232 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
233 should used for accessing the d_type and d_name members of structures
234 using PyDescr_COMMON.
235
236- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +0000237
Benjamin Peterson466a7822009-07-02 21:44:01 +0000238- The code flags for old __future__ features are now available again.
239
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +0000240- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
241 PyCode_Addr2Line().
242
243- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
244 object at a specified file, function, and line number.
245
246- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
247 ``const char *`` as the string is stored beyond the call.
248
Benjamin Peterson05159c42009-12-03 03:01:27 +0000249- Issue #2422: When compiled with the ``--with-valgrind`` option, the
250 pymalloc allocator will be automatically disabled when running under
251 Valgrind. This gives improved memory leak detection when running
252 under Valgrind, while taking advantage of pymalloc at other times.
253
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000254Library
255-------
256
Andrew M. Kuchlinge1f9beb2010-02-22 22:16:58 +0000257- Issue #6666: fix bug in trace.py that applied the list of directories
258 to be ignored only to the first file. Noted by Bogdan Opanchuk.
259
Andrew M. Kuchlingfbacb062010-02-22 16:52:52 +0000260- Issue #7597: curses.use_env() can now be called before initscr().
261 Noted by Kan-Ru Chen.
262
Ezio Melotti19e4acf2010-02-22 15:59:01 +0000263- Issue #7310: fix the __repr__ of os.environ to show the environment variables.
264
R. David Murray57c45ac2010-02-21 04:39:40 +0000265- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
266 messages parsed by email.Parser.HeaderParser.
267
Brett Cannonef7d6722010-02-19 16:04:36 +0000268- Issue #7361: Importlib was not properly checking the number of bytes in
269 bytecode file when it was less then 8 bytes.
270
Mark Dickinson84230a12010-02-18 14:49:50 +0000271- Issue #7633: In the decimal module, Context class methods (with the
272 exception of canonical and is_canonical) now accept instances of int
273 and long wherever a Decimal instance is accepted, and implicitly
274 convert that argument to Decimal. Previously only some arguments
275 were converted.
276
R. David Murray1f449142010-02-11 00:15:05 +0000277- Issue #7835: shelve should no longer produce mysterious warnings during
278 interpreter shutdown.
279
Antoine Pitrou99f69ee2010-02-09 17:25:47 +0000280- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">")
281 in XML processing instructions and comments. These raw characters are
282 allowed by the XML specification, and are necessary when outputting e.g.
283 PHP code in a processing instruction. Patch by Neil Muller.
284
Antoine Pitrouc77dd322010-02-09 16:51:16 +0000285- Issue #6233: ElementTree failed converting unicode characters to XML
286 entities when they could't be represented in the requested output
287 encoding. Patch by Jerry Chen.
288
Ronald Oussorenee5c8852010-02-07 20:24:02 +0000289- Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to
290 specify the compression type.
291
Antoine Pitroub6375f12010-02-04 20:23:24 +0000292- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
293 specified, rather than fall through to AF_PACKET (in the `socket` module).
294 Also, raise ValueError rather than TypeError when an unknown TIPC address
295 type is specified. Patch by Brian Curtin.
296
Antoine Pitrou905a2ff2010-01-31 22:47:27 +0000297- Issue #6939: Fix file I/O objects in the `io` module to keep the original
298 file position when calling `truncate()`. It would previously change the
299 file position to the given argument, which goes against the tradition of
300 ftruncate() and other truncation APIs. Patch by Pascal Chambon.
301
Antoine Pitroua32f9a22010-01-27 21:18:57 +0000302- Issue #7610: Reworked implementation of the internal
303 :class:`zipfile.ZipExtFile` class used to represent files stored inside
304 an archive. The new implementation is significantly faster and can
305 be wrapped in a :class:`io.BufferedReader` object for more speedups.
306 It also solves an issue where interleaved calls to `read()` and
307 `readline()` give wrong results. Patch by Nir Aides.
308
Jesse Noller1f0b6582010-01-27 03:36:01 +0000309- Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool,
310 allowing for a maximum number of tasks within the pool to be completed by
311 the worker before that worker is terminated, and a new one created to
312 replace it.
313
Benjamin Petersond6326642010-01-27 02:25:58 +0000314- Issue #7792: Registering non-classes to ABCs raised an obscure error.
315
Benjamin Peterson9a11a362010-01-27 01:51:29 +0000316- Issue #7785: Don't accept bytes in FileIO.write().
Benjamin Peterson255058f2010-01-27 01:47:14 +0000317
Ezio Melotti38f00332010-01-25 12:39:47 +0000318- Removed the functions 'verify' and 'vereq' from Lib/test/support.py.
319
Benjamin Peterson25001472010-01-25 03:37:42 +0000320- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
321 the release file is empty.
322
Antoine Pitrou1119a642010-01-17 12:16:23 +0000323- Issue #7561: Fix crashes when using bytearray objects with the posix
324 module.
325
R. David Murraya8f480f2010-01-16 18:30:03 +0000326- Issue #1670765: Prevent email.generator.Generator from re-wrapping
327 headers in multipart/signed MIME parts, which fixes one of the sources of
328 invalid modifications to such parts by Generator.
329
Antoine Pitrou747e8b32010-01-16 17:55:52 +0000330- Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`.
331 Patch by Florent Xicluna, along with some additional tests.
332
Antoine Pitrou2843aa82010-01-15 00:27:43 +0000333- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
334 1-byte argument. Patch by Victor Stinner.
335
Antoine Pitrou82feb1f2010-01-14 17:34:48 +0000336- Issue #3299: Fix possible crash in the _sre module when given bad
337 argument values in debug mode. Patch by Victor Stinner.
338
Antoine Pitrou8e33fd72010-01-13 14:37:26 +0000339- Issue #2846: Add support for gzip.GzipFile reading zero-padded files.
340 Patch by Brian Curtin.
341
Benjamin Peterson5efea042010-01-13 03:49:50 +0000342- Issue #7681: Use floor division in appropiate places in the wave module.
343
Tarek Ziadéac4e6ea2010-01-11 23:15:52 +0000344- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
345 Extension extra options may change the output without changing the .c
346 file). Initial patch by Collin Winter.
347
Tarek Ziadéaf77a2f2010-01-08 23:57:53 +0000348- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
349 gcc when it has a fully qualified configuration prefix. Initial patch
350 by Arfrever.
351
Antoine Pitrouc1baa602010-01-08 17:54:23 +0000352- Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against
353 the destruction of weakref'ed objects while iterating.
354
Antoine Pitrou01a15ea2010-01-07 17:57:31 +0000355- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
356 Victor Stinner.
357
Gregory P. Smithaafdca82010-01-04 04:50:36 +0000358- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
359 properly handles EINTR within the read, readline, write & flush methods.
360 The socket.sendall() method now properly handles interrupted system calls.
361
Antoine Pitroub1f88352010-01-03 22:37:40 +0000362- Issue #7471: Improve the performance of GzipFile's buffering mechanism,
363 and make it implement the `io.BufferedIOBase` ABC to allow for further
364 speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides.
365
366- Issue #3972: http.client.HTTPConnection now accepts an optional source_address
Gregory P. Smithb4066372010-01-03 03:28:29 +0000367 parameter to allow specifying where your connections come from.
368
369- socket.create_connection now accepts an optional source_address parameter.
370
Ezio Melottifaa6b7f2009-12-30 12:34:59 +0000371- Issue #5511: now zipfile.ZipFile can be used as a context manager.
372 Initial patch by Brian Curtin.
373
Tarek Ziadéc60ea322009-12-21 23:12:41 +0000374- Issue #7556: Make sure Distutils' msvc9compile reads and writes the
375 MSVC XML Manifest file in text mode so string patterns can be used
376 in regular expressions.
377
Tarek Ziadé8b9361a2009-12-21 00:02:20 +0000378- Issue #7552: Removed line feed in the base64 Authorization header in
379 the Distutils upload command to avoid an error when PyPI reads it.
380 This occurs on long passwords. Initial patch by JP St. Pierre.
381
Senthil Kumaran47fff872009-12-20 07:10:31 +0000382- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
383 Tatsuhiro Tsujikawa.
384
Antoine Pitrou77b338b2009-12-14 18:00:06 +0000385- Issue #4757: `zlib.compress` and other methods in the zlib module now
386 raise a TypeError when given an `str` object (rather than a `bytes`-like
387 object). Patch by Victor Stinner and Florent Xicluna.
388
Benjamin Petersonbf5ff762009-12-13 19:25:34 +0000389- Issue #7349: Make methods of file objects in the io module accept None as an
390 argument where file-like objects (ie StringIO and BytesIO) accept them to mean
391 the same as passing no argument.
392
Lars Gustäbel365aff32009-12-13 11:42:29 +0000393- Issue #7357: tarfile no longer suppresses fatal extraction errors by
394 default.
395
R. David Murraye8dc2582009-12-10 02:08:06 +0000396- Issue #5949: added check for correct lineends in input from IMAP server
397 in imaplib.
398
Raymond Hettingere5fdedb2009-12-10 00:47:21 +0000399- Add a reverse() method to collections.deque().
400
Raymond Hettinger3f9afd82009-12-10 03:03:02 +0000401- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
402
Antoine Pitrou781eba72009-12-08 15:57:31 +0000403- Issue #6986: Fix crash in the JSON C accelerator when called with the
404 wrong parameter types. Patch by Victor Stinner.
405
Tarek Ziadéb88a4962009-12-08 09:45:25 +0000406- Issue #7457: added a read_pkg_file method to
407 distutils.dist.DistributionMetadata.
408
Vinay Sajip540f2152009-12-06 17:57:11 +0000409- logging: Added optional `secure` parameter to SMTPHandler, to enable use of
410 TLS with authentication credentials.
411
Tarek Ziadédf872d42009-12-06 09:28:17 +0000412- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
413 generated in Distutils. Patch by Stephen Emslie.
414
Martin v. Löwis1679ea82009-12-03 20:57:49 +0000415- Issue #4120: Drop reference to CRT from manifest when building extensions with
416 msvc9compiler.
417
Antoine Pitroub7572f02009-12-02 20:46:48 +0000418- Issue #7333: The `posix` module gains an `initgroups()` function providing
419 access to the initgroups(3) C library call on Unix systems which implement
420 it. Patch by Jean-Paul Calderone.
421
Tarek Ziadéacafc2d2009-11-29 22:24:57 +0000422- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
423 ownership when the group is not forced, because the group may be different
424 from the user's group and inherit from its container when the test is run.
425
Antoine Pitrou7b0d4a22009-11-28 16:12:28 +0000426- Issue #4486: When an exception has an explicit cause, do not print its
427 implicit context too. This affects the `traceback` module as well as
428 built-in exception printing.
429
Antoine Pitrou1fc0d2b2009-11-28 15:58:27 +0000430- Issue #1515: Enable use of deepcopy() with instance methods. Patch by
431 Robert Collins.
432
Vinay Sajip03f6c112009-11-27 14:03:36 +0000433- Issue #7403: logging: Fixed possible race condition in lock creation.
434
Antoine Pitrou648bcd72009-11-27 13:23:26 +0000435- Issue #6845: Add restart support for binary upload in ftplib. The
436 `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest`
437 argument. Patch by Pablo Mouzo.
438
Antoine Pitroube6859d2009-11-25 23:02:32 +0000439- Issue #5788: `datetime.timedelta` objects get a new `total_seconds()`
440 method returning the total number of seconds in the duration. Patch by
441 Brian Quinlan.
442
Antoine Pitrou7d7aede2009-11-25 18:55:32 +0000443- Issue #7133: SSL objects now support the new buffer API.
444
Senthil Kumaran758025c2009-11-23 19:02:52 +0000445- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
446
Lars Gustäbel9520a432009-11-22 18:48:49 +0000447- Issue #6123: tarfile now opens empty archives correctly and consistently
448 raises ReadError on empty files.
449
Tarek Ziadé26afd482009-11-19 05:39:00 +0000450- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can
451 be 2.
452
Benjamin Peterson3ec9b6e2009-11-19 21:22:27 +0000453- Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead
454 of __str__.
Benjamin Peterson32019772009-11-19 03:08:32 +0000455
Lars Gustäbel7b465392009-11-18 20:29:25 +0000456- Issue #7341: Close the internal file object in the TarFile constructor in
457 case of an error.
458
Tarek Ziadé11c9d252009-11-18 09:32:34 +0000459- Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh
460 Windows box. Help provided by David Bolen.
461
Antoine Pitrouf988cd02009-11-17 20:21:14 +0000462- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using
463 TLS or SSL. Patch by Giampaolo Rodola'.
464
Nick Coghlan106274b2009-11-15 23:04:33 +0000465- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
466
Antoine Pitroub8108e22009-11-15 14:25:16 +0000467- Issue #4969: The mimetypes module now reads the MIME database from
468 the registry under Windows. Patch by Gabriel Genellina.
469
Nick Coghlan260bd3e2009-11-16 06:49:25 +0000470- Issue #6816: runpy now provides a run_path function that allows Python code
471 to execute file paths that refer to source or compiled Python files as well
472 as zipfiles, directories and other valid sys.path entries that contain a
473 __main__.py file. This allows applications that run other Python scripts to
474 support the same flexibility as the CPython command line itself.
475
Antoine Pitrou45d61a32009-11-13 22:35:18 +0000476- Issue #7318: multiprocessing now uses a timeout when it fails to establish
477 a connection with another process, rather than looping endlessly. The
478 default timeout is 20 seconds, which should be amply sufficient for
479 local connections.
480
Antoine Pitrouc63ecee2009-11-10 21:34:48 +0000481- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
482 unpickled. This fixes crashes under Windows when trying to run
483 test_multiprocessing in verbose mode.
484
Michael Foord34c94622010-02-10 15:51:42 +0000485- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
486 argument added to the TextTestRunner constructor allowing a different result
487 class to be used without having to subclass.
488
489- Issue 7588: ``unittest.TextTestResult.getDescription`` now includes the test
490 name in failure reports even if the test has a docstring.
491
Antoine Pitrou434736a2009-11-10 18:46:01 +0000492- Issue #3001: Add a C implementation of recursive locks which is used by
493 default when instantiating a `threading.RLock` object. This makes
494 recursive locks as fast as regular non-recursive locks (previously,
495 they were slower by 10x to 15x).
496
Antoine Pitroub0872682009-11-09 16:08:16 +0000497- Issue #7282: Fix a memory leak when an RLock was used in a thread other
498 than those started through `threading.Thread` (for example, using
499 `_thread.start_new_thread()`).
500
Brett Cannone52c9192009-11-07 23:55:05 +0000501- Issue #7187: Importlib would not silence the IOError raised when trying to
502 write new bytecode when it was made read-only.
503
Antoine Pitroubdec11f2009-11-05 13:49:14 +0000504- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
505 which are part of a reference cycle.
506
Antoine Pitroud83f1e62009-11-04 21:10:38 +0000507- Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent
508 objects on 64-bit systems. Patch by Michael Broghton.
509
Antoine Pitrou03f13442009-11-02 11:36:51 +0000510- Issue #6896: mailbox.Maildir now invalidates its internal cache each time
511 a modification is done through it. This fixes inconsistencies and test
512 failures on systems with slightly bogus mtime behaviour.
513
Gregory P. Smith50467882009-11-01 18:42:17 +0000514- Issue #7246 & Issue #7208: getpass now properly flushes input before
515 reading from stdin so that existing input does not confuse it and
516 lead to incorrect entry or an IOError. It also properly flushes it
517 afterwards to avoid the terminal echoing the input afterwards on
518 OSes such as Solaris.
519
Mark Dickinsona2d1fe02009-10-29 12:23:02 +0000520- Issue #7233: Fix a number of two-argument Decimal methods to make
521 sure that they accept an int or long as the second argument. Also
522 fix buggy handling of large arguments (those with coefficient longer
523 than the current precision) in shift and rotate.
524
Lars Gustäbel1440df22009-10-29 09:39:47 +0000525- Issue #4750: Store the basename of the original filename in the gzip FNAME
526 header as required by RFC 1952.
527
Tarek Ziadéc7c71ff2009-10-27 23:12:01 +0000528- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
529 Distutils.
530
Tarek Ziadé8c0e2172009-10-27 21:24:21 +0000531- Issue #7218: Fix test_site for win32, the directory comparison was done with
532 an uppercase.
533
Antoine Pitrouc66363f2009-10-27 17:47:14 +0000534- Issue #7205: Fix a possible deadlock when using a BZ2File object from
535 several threads at once.
536
Vinay Sajip42ead482009-10-21 20:22:14 +0000537- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
538
Mark Dickinson06bb6742009-10-20 13:38:04 +0000539- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
540 larger than emax.
541
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000542- Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows
543 platforms, and assorted locale fixes by Derk Drukker.
544
Antoine Pitroudc0900b2009-10-19 18:22:37 +0000545- Issue #5833: Fix extra space character in readline completion with the
546 GNU readline library version 6.0.
547
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000548- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
Senthil Kumaran7bb04972009-10-11 04:58:55 +0000549
Vinay Sajipcbabd7e2009-10-10 20:32:36 +0000550- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
551 anachronisms in the code which were a relic of 1.5.2 compatibility.
Vinay Sajip96d4aa32009-10-16 14:06:44 +0000552
R. David Murraybf2e0aa2009-10-10 00:13:32 +0000553- Issue #7082: When falling back to the MIME 'name' parameter, the
554 correct place to look for it is the Content-Type header.
555
Benjamin Petersond3afada2009-10-09 21:43:09 +0000556- Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the
557 builtin tokenizer.
558
Mark Dickinson56df8872009-10-07 19:23:50 +0000559- Issue #7048: Force Decimal.logb to round its result when that result
560 is too large to fit in the current precision.
561
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000562- Issue #6236, #6348: Fix various failures in the I/O library under AIX
Antoine Pitrou6a448d42009-10-19 19:43:09 +0000563 and other platforms, when using a non-gcc compiler. Patch by Derk Drukker.
Antoine Pitrouca767bd2009-09-21 21:37:02 +0000564
Thomas Heller69b639f2009-09-18 20:08:39 +0000565- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
566 does now always result in NULL.
567
Thomas Hellerd7cb1b92009-09-18 19:05:13 +0000568- Issue #5042: Structure sub-subclass does now initialize correctly
569 with base class positional arguments.
570
Eric Smith81fd8042009-09-18 13:23:13 +0000571- Issue #6882: Import uuid creates zombies processes.
572
Matthias Klosef6b76b02009-09-13 15:18:53 +0000573- Issue #6635: Fix profiler printing usage message.
574
Lars Gustäbel049d2aa2009-09-12 10:44:00 +0000575- Issue #6856: Add a filter keyword argument to TarFile.add().
576
Benjamin Petersonbe74a372009-09-11 21:17:13 +0000577- Issue #6888: pdb's alias command was broken when no arguments were given.
578
Mark Dickinson46ab5d02009-09-08 20:22:46 +0000579- Issue #6857: Default format() alignment should be '>' for Decimal
580 instances.
581
Mark Dickinson825fce32009-09-07 18:08:12 +0000582- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
583 returning NaN or raising InvalidContext. Also, fix infinite recursion
584 in long(Decimal('nan')).
585
Mark Dickinson7718d2b2009-09-07 16:21:56 +0000586- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
587 with no type specifier.
588
Thomas Heller8b939522009-09-04 18:24:41 +0000589- Issue #6239: ctypes.c_char_p return value must return bytes.
590
Chris Withers9c33cbf2009-09-04 17:04:16 +0000591- Issue #6838: Use a list to accumulate the value instead of
592 repeatedly concatenating strings in http.client's
593 HTTPResponse._read_chunked providing a significant speed increase
594 when downloading large files servend with a Transfer-Encoding of 'chunked'.
595
Brett Cannon1c1dcbf2009-08-30 20:22:21 +0000596- Trying to import a submodule from a module that is not a package, ImportError
597 should be raised, not AttributeError.
598
Brett Cannonde4ebfe2009-08-30 19:53:48 +0000599- When the globals past to importlib.__import__() has __package__ set to None,
600 fall back to computing what __package__ should be instead of giving up.
601
Brett Cannon6afbaef2009-08-30 19:08:58 +0000602- Raise a TypeError when the name of a module to be imported for
603 importlib.__import__ is not a string (was raising an
604 AttributeError before).
605
Brett Cannon9e0e1a62009-08-30 18:28:46 +0000606- Allow the fromlist passed into importlib.__import__ to be any iterable.
607
Brett Cannon4d75fc12009-08-30 03:47:36 +0000608- Have importlib raise ImportError if None is found in sys.modules.
609
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +0000610- Issue #6054: Do not normalize stored pathnames in tarfile.
611
Mark Dickinsond314e1b2009-08-28 13:39:53 +0000612- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
613 payloads are now ordered by integer value rather than lexicographically.
614
Guilherme Polobcd03df2009-08-18 15:35:57 +0000615- Issue #1356969: Add missing info methods in tix.HList.
616
617- Issue #1522587: New constants and methods for the tix.Grid widget.
618
619- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
620
621- Issue #1119673: Do not override tkinter.Text methods when creating a
622 ScrolledText.
623
Gregory P. Smith01099702009-08-16 18:58:46 +0000624- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
625
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000626- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
627 the xview* and yview* methods.
628
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000629- Issue #6629: Fix a data corruption issue in the new I/O library, which could
630 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
631 "wb+" mode) after having buffered a certain amount of data for reading. This
632 bug was not present in the pure Python implementation.
633
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000634- Issue #6622: Fix "local variable 'secret' referenced before
635 assignment" bug in POP3.apop.
636
Mark Dickinson45f799f2009-08-02 20:08:54 +0000637- Issue #2715: Remove remnants of Carbon.File from binhex module.
638
Mark Dickinson345adc42009-08-02 10:14:23 +0000639- Issue #6595: The Decimal constructor now allows arbitrary Unicode
640 decimal digits in input, as recommended by the standard. Previously
641 it was restricted to accepting [0-9].
642
Jack Diederich36596a32009-07-26 22:23:04 +0000643- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
644 DO/DONT correctly.
645
Senthil Kumaran67305382009-07-26 04:46:00 +0000646- Issue #1424152: Fix for http.client, urllib.request to support SSL while
647 working through proxy. Original patch by Christopher Li, changes made by
648 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000649
Brett Cannon69194272009-07-20 04:23:48 +0000650- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
651 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
652 and PyPycLoader inherit from this class and provide implementations in
653 relation to other methods required by the ABCs.
654
Brett Cannon64ef00f2009-07-20 03:19:18 +0000655- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
656 the documentation said it did even though the code in PyLoader relied on the
657 abstract method required by ResourceLoader.
658
Mark Dickinson85424c92009-07-18 14:41:42 +0000659- Issue #6431: Make Fraction type return NotImplemented when it doesn't
660 know how to handle a comparison without loss of precision. Also add
661 correct handling of infinities and nans for comparisons with float.
662
Antoine Pitrouf3637322009-08-06 21:00:37 +0000663- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000664
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000665- Issue #6358: The exit status of a command started with os.popen() was
666 reported differently than it did with python 2.x.
667
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000668- Issue #6323: The pdb debugger did not exit when running a script with a
669 syntax error.
670
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000671- Issue #3392: The subprocess communicate() method no longer fails in select()
672 when file descriptors are large; communicate() now uses poll() when possible.
673
Antoine Pitrou54923952009-07-01 14:53:06 +0000674- Issue #6369: Fix an RLE decompression bug in the binhex module.
675
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000676- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
677
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000678- The deprecated function string.maketrans has been removed.
679
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000680- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
681 sys.path.
682
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000683- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
684
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000685Extension Modules
686-----------------
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000687
Martin v. Löwis3afc62e2010-02-18 16:27:43 +0000688- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
689 msvcr100.dll is not a platform assembly anymore.
690
Martin v. Löwis7aed61a2009-11-27 14:09:49 +0000691- Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}.
692
Mark Dickinson40714af2009-10-08 15:59:20 +0000693- Issue #7078: Set struct.__doc__ from _struct.__doc__.
694
Mark Dickinson45f992a2009-12-19 11:20:49 +0000695- Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module.
Mark Dickinson12c4bdb2009-09-28 19:21:11 +0000696
Ronald Oussoren2efd9242009-09-20 14:53:22 +0000697- Issue #6877: It is now possible to link the readline extension to the
698 libedit readline emulation on OSX 10.5 or later.
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000699
Mark Dickinson5ea7d642009-09-06 21:24:55 +0000700- Issue #6848: Fix curses module build failure on OS X 10.6.
701
Brett Cannon2f827382009-08-13 19:58:01 +0000702- Fix a segfault that could be triggered by expat with specially formed input.
703
Mark Dickinson1f268282009-07-28 17:22:36 +0000704- Issue #6561: '\d' in a regex now matches only characters with
705 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
706 matched characters with category 'No'.
707
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000708- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000709 failing due to the resize restriction in-place when the object has exported
710 buffers.
711
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000712- Issue #2389: Array objects are now pickled in a portable manner.
713
Matthias Klosea50ffe52010-01-22 01:10:19 +0000714- Expat: Fix DoS via XML document with malformed UTF-8 sequences
715 (CVE_2009_3560).
716
Martin v. Löwis95c46012009-06-28 09:36:14 +0000717Build
718-----
719
Martin v. Löwis19ed3c82010-02-15 21:45:06 +0000720- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
Martin v. Löwis7671efc2010-02-15 08:35:16 +0000721
Mark Dickinsonde508002010-01-17 21:02:55 +0000722- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
723 private memory allocation scheme in dtoa.c and use PyMem_Malloc and
724 PyMem_Free instead. Also disable caching of powers of 5.
725
Benjamin Petersond78735d2010-01-01 16:04:23 +0000726- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
727
728- Issue #6943: Use pkg-config to find the libffi headers when the
729 --with-system-ffi flag is used.
730
Benjamin Petersonb2d90462009-12-31 03:23:10 +0000731- Issue #7609: Add a --with-system-expat option that causes the system's expat
732 library to be used for the pyexpat module instead of the one included with
733 Python.
734
Benjamin Petersone57d6762009-12-30 03:02:03 +0000735- Issue #7589: Only build the nis module when the correct header files are
736 found.
737
Martin v. Löwis7df3b9e2010-01-02 10:06:19 +0000738- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
Martin v. Löwise5692cd2009-12-22 08:57:39 +0000739
Mark Dickinsonf4243f62009-11-15 13:47:27 +0000740- Issue #5792: Extend the short float repr support to x86 systems using
741 icc or suncc.
742
Mark Dickinsona25b1312009-10-31 10:18:44 +0000743- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
744 compiles correctly under gcc on x86-64. This fixes a reported
745 problem with the --with-tsc build on x86-64.
746
Ronald Oussoren5bbab3e2009-09-06 11:01:15 +0000747- Issue #6802: Fix build issues on MacOSX 10.6
748
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000749- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
750
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000751- Issue 4601: 'make install' did not set the appropriate permissions on
752 directories.
753
Martin v. Löwis95c46012009-06-28 09:36:14 +0000754- Issue 5390: Add uninstall icon independent of whether file
755 extensions are installed.
756
Ronald Oussoren585c1732009-12-24 14:21:55 +0000757- Issue #7541: when using ``python-config`` with a framework install the compiler might
758 use the wrong library.
759
Mark Dickinsond3aa6462009-09-17 00:06:41 +0000760Documentation
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000761------------
762
Barry Warsaw615368f2010-02-05 19:12:30 +0000763- Updating `Using Python` documentation to include description of CPython's
764 -J and -X options.
765
Brett Cannon757df6e2009-08-30 04:00:12 +0000766- Document that importing a module that has None in sys.modules triggers an
767 ImportError.
768
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000769- Issue #6556: Fixed the Distutils configuration files location explanation
770 for Windows.
Matthias Klosec8b16f82010-01-31 16:14:37 +0000771
772- Update python manual page (options -B, -O0, -s, environment variables
773 PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000774
Brett Cannonb49c70c2009-07-15 04:08:33 +0000775Tests
776-----
777
Ezio Melotti184bdfb2010-02-18 09:37:05 +0000778- Issue #7712: test.support gained a new `temp_cwd` context manager which is
779 now also used by regrtest to run all the tests in a temporary directory.
780 The original CWD is saved in `support.SAVEDCWD`.
781 Thanks to Florent Xicluna who helped with the patch.
782
Mark Dickinsonedff7af2010-02-13 18:34:53 +0000783- Issue #7924: Fix an intermittent 'XXX undetected error' failure in
784 test_capi (only seen so far on platforms where the curses module
785 wasn't built), due to an uncleared exception.
786
R. David Murraye9e95932010-02-06 05:00:15 +0000787- issue #7728: test_timeout was changed to use test_support.bind_port
788 instead of a hard coded port.
789
R. David Murray445448c2009-12-20 17:28:31 +0000790- Issue #7376: instead of running a self-test (which was failing) when called
791 with no arguments, doctest.py now gives a usage message.
792
R. David Murrayef1992b2009-12-16 15:19:27 +0000793- Issue #7396: fix regrtest -s, which was broken by the -j enhancement.
794
R. David Murray596da442009-12-14 23:06:11 +0000795- Issue #7498: test_multiprocessing now uses test.support.find_unused_port
R. David Murray83396232009-12-14 22:45:15 +0000796 instead of a hardcoded port number in test_rapid_restart.
797
R. David Murrayba311052009-12-04 00:09:14 +0000798- Issue #7431: use TESTFN in test_linecache instead of trying to create a
799 file in the Lib/test directory, which might be read-only for the
800 user running the tests.
801
R. David Murray35768ad2009-11-15 00:23:21 +0000802- Issue #7324: add a sanity check to regrtest argument parsing to
803 catch the case of an option with no handler.
804
R. David Murray7dc72cc2009-11-14 16:13:02 +0000805- Issue #7312: Add a -F flag to run the selected tests in a loop until
806 a test fails. Can be combined with -j.
807
Antoine Pitrou060cee22009-11-13 16:29:04 +0000808- Issue #6551: test_zipimport could import and then destroy some modules of
809 the encodings package, which would make other tests fail further down
810 the road because the internally cached encoders and decoders would point
811 to empty global variables.
812
Antoine Pitrou941ee882009-11-11 20:59:38 +0000813- Issue #7295: Do not use a hardcoded file name in test_tarfile.
814
Antoine Pitrou557934f2009-11-06 22:41:14 +0000815- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
816 primitives such as Lock, RLock, Condition, Event and Semaphore.
817
Brett Cannoncfed0292009-11-05 01:26:57 +0000818- Issue #7248 (part 2): Use a unique temporary directory for importlib source
819 tests instead of tempfile.tempdir. This prevents the tests from sharing state
820 between concurrent executions on the same system.
821
Brett Cannon0ae45112009-11-05 01:17:22 +0000822- Issue #7248: In importlib.test.source.util a try/finally block did not make
823 sure that some referenced objects actually were created in the block before
824 calling methods on the object.
825
Antoine Pitrou65c9c642009-10-30 17:25:12 +0000826- Issue #7222: Make thread "reaping" more reliable so that reference
827 leak-chasing test runs give sensible results. The previous method of
828 reaping threads could return successfully while some Thread objects were
829 still referenced. This also introduces a new private function:
830 :func:`_thread._count()`.
831
R. David Murray27144602009-10-19 15:26:16 +0000832- Issue #7151: fixed regrtest -j so that output to stderr from a test no
833 longer runs the risk of causing the worker thread to fail.
834
Antoine Pitrou4de39cd2009-10-10 21:08:31 +0000835- Issue #7055: test___all__ now greedily detects all modules which have an
836 __all__ attribute, rather than using a hardcoded and incomplete list.
837
R. David Murray0bc11ae2009-10-18 22:18:17 +0000838- Issue #7058: Added save/restore for things like sys.argv and cwd to
839 runtest_inner in regrtest, with warnings if the called test modifies them,
840 and a new section in the summary report at the end.
R. David Murray097e51f2009-10-07 23:38:55 +0000841
Mark Dickinson2e304402009-10-04 18:43:54 +0000842- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
843
Brett Cannon3c273842009-07-20 00:14:29 +0000844- Fixed tests in importlib.test.source.test_abc_loader that were masking
845 the proper exceptions that should be raised for missing or improper code
846 object bytecode.
847
Brett Cannonb49c70c2009-07-15 04:08:33 +0000848- Removed importlib's custom test discovery code and switched to
849 unittest.TestLoader.discover().
850
Antoine Pitroua69ba652010-01-18 21:20:53 +0000851Tools/Demos
852-----------
853
854- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
855 added to the `Tools/` directory. They were previously living in the
856 sandbox.
857
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000858
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000859What's New in Python 3.1?
860=========================
861
862*Release date: 27-June-2009*
863
864Core and Builtins
865-----------------
866
Mark Dickinsonad195562009-06-24 19:01:32 +0000867- Issue #6334: Fix bug in range length calculation for ranges with
868 large arguments.
869
Raymond Hettinger159eac92009-06-23 20:38:54 +0000870- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
871 because it wasn't recognized as a sequence).
872
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000873Library
874-------
875
Georg Brandld07ac642009-08-13 07:50:57 +0000876- Issue #6126: Fixed pdb command-line usage.
877
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000878- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000879
Facundo Batista10706e22009-06-19 20:34:30 +0000880- Issue #6274: Fixed possible file descriptors leak in subprocess.py
881
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000882- Accessing io.StringIO.buffer now raises an AttributeError instead of
883 io.UnsupportedOperation.
884
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000885- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000886 (On Unix)
887
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000888- Issue #1202: zipfile module would cause a struct.error when attempting to
889 store files with a CRC32 > 2**31-1.
890
Matthias Kloseab2b7552009-06-22 13:05:52 +0000891Extension Modules
892-----------------
893
894- Issue #5590: Remove unused global variable in pyexpat extension.
895
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000896
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000897What's New in Python 3.1 Release Candidate 2?
898=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000899
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000900*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000901
902Core and Builtins
903-----------------
904
Raymond Hettinger94f55832009-06-12 18:40:16 +0000905- Fixed SystemError triggered by "range([], 1, -1)".
906
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000907- Issue #5924: On Windows, a large PYTHONPATH environment variable
908 (more than 255 characters) would be completely ignored.
909
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000910- Issue #4547: When debugging a very large function, it was not always
911 possible to update the lineno attribute of the current frame.
912
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000913- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000914 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000915
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000916Library
917-------
918
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000919- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000920 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000921 Popen. Tested under win32 to build the py-postgresql project.
922
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000923- Issue #6258: Support AMD64 in bdist_msi.
924
R. David Murray58641de2009-06-12 15:33:19 +0000925- Issue #6195: fixed doctest to no longer try to read 'source' data from
926 binary files.
927
Vinay Sajipaffbd872009-06-11 10:11:47 +0000928- Issue #5262: Fixed bug in next rollover time computation in
929 TimedRotatingFileHandler.
930
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000931- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
932 errors property. Additionally, the errors and encoding properties of StringIO
933 are always None now.
934
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000935- Issue #6137: The pickle module now translates module names when loading
936 or dumping pickles with a 2.x-compatible protocol, in order to make data
937 sharing and migration easier. This behaviour can be disabled using the
938 new `fix_imports` optional argument.
939
Raymond Hettinger40925d22009-06-04 18:32:39 +0000940- Removed the ipaddr module.
941
Georg Brandlb54d8012009-06-04 09:11:51 +0000942- Issue #3613: base64.{encode,decode}string are now called
943 base64.{encode,decode}bytes which reflects what type they accept and return.
944 The old names are still there as deprecated aliases.
945
Georg Brandl317185a2009-06-04 09:00:56 +0000946- Issue #5767: Remove sgmlop support from xmlrpc.client.
947
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000948- Issue #6150: Fix test_unicode on wide-unicode builds.
949
Antoine Pitrouc06de472009-05-30 21:04:26 +0000950- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
951 parameters.
952
Martin v. Löwis79b13872009-06-01 04:13:14 +0000953Windows
954-------
955
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000956- Issue #6221: Delete test registry key before running the test.
957
Martin v. Löwis79b13872009-06-01 04:13:14 +0000958- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
959
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000960C-API
961-----
962
963- Issue #5735: Python compiled with --with-pydebug should throw an
964 ImportError when trying to import modules compiled without
965 --with-pydebug, and vice-versa.
966
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000967
Brett Cannonc6d936e2009-06-07 20:09:53 +0000968Build
969-----
970
971- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
972 added LIBS to OS X framework builds.
973
Ronald Oussoren99aab652009-06-08 21:22:57 +0000974- Issue #5809: Specifying both --enable-framework and --enable-shared is
975 an error. Configure now explicity tells you about this.
976
977
Brett Cannonc6d936e2009-06-07 20:09:53 +0000978
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000979What's New in Python 3.1 release candidate 1?
980=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000981
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000982*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000983
984Core and Builtins
985-----------------
986
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000987- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
988 of the command line.
989
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000990- Issue #6012: Add cleanup support to O& argument parsing.
991
Eric Smith41669ca2009-05-23 14:23:22 +0000992- Issue #6089: Fixed str.format with certain invalid field specifiers
993 that would raise SystemError.
994
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000995- Issue #5982: staticmethod and classmethod now expose the wrapped
996 function with __func__.
997
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000998- Added support for multiple context managers in the same with-statement.
999 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +00001000
Mark Dickinson6b1e43b2009-05-20 18:41:04 +00001001- Issue #5829: complex("1e500") no longer raises OverflowError. This
1002 makes it consistent with float("1e500") and interpretation of real
1003 and imaginary literals.
1004
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +00001005- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
1006
R. David Murraydd226ea2009-05-13 12:27:21 +00001007- Issue #5994: the marshal module now has docstrings.
1008
Mark Dickinsond1ec8b22009-05-11 15:45:15 +00001009- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
1010 (1) inf and nan strings with trailing whitespace were incorrectly
1011 rejected; (2) parsing of strings representing infinities and nans
1012 was locale aware; and (3) the interpretation of fromhex('-nan')
1013 didn't match that of float('-nan').
1014
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001015Library
1016-------
1017
Martin v. Löwisb6a748b2009-05-29 15:23:17 +00001018- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
1019
R. David Murrayfb123912009-05-28 18:19:00 +00001020- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
1021
R. David Murray1f1b9d32009-05-27 20:56:59 +00001022- Issue #6121: pydoc now ignores leading and trailing spaces in the
1023 argument to the 'help' function.
1024
Georg Brandlfaf41492009-05-26 18:31:11 +00001025- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
1026 arguments for strings with a space in them.
1027
Raymond Hettinger089ba7f2009-05-27 00:38:24 +00001028- collections.namedtuple() was not working with the following field
1029 names: cls, self, tuple, itemgetter, and property.
1030
Benjamin Peterson14a3dd72009-05-25 00:51:58 +00001031- In unittest, using a skipping decorator on a class is now equivalent to
1032 skipping every test on the class. The ClassTestSuite class has been removed.
1033
Martin v. Löwis70ccd162009-05-24 19:47:22 +00001034- Issue #6050: Don't fail extracting a directory from a zipfile if
1035 the directory already exists.
1036
Antoine Pitrou61f77b52009-05-24 15:46:13 +00001037- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
1038 than an int, which makes some operations possible under 64-bit Linux (e.g.
1039 DN_MULTISHOT with F_NOTIFY).
1040
Antoine Pitrou716c4442009-05-23 19:04:03 +00001041- Issue #5761: Add the name of the underlying file to the repr() of various
1042 IO objects.
1043
R. David Murraycaa27b72009-05-23 18:49:56 +00001044- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
1045 by Musashi Tamura, tests by Marcin Bachry.
1046
Antoine Pitrouc3ee1662009-05-23 16:02:33 +00001047- Issue #1983: Fix functions taking or returning a process identifier to use
1048 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
1049 a process identifier type wider than the standard C integer type.
1050
R. David Murray87e20742009-05-23 01:30:26 +00001051- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
1052 Patch by Farhan Ahmad, test by Marcin Bachry.
1053
Antoine Pitrou6e610062009-05-15 17:04:50 +00001054- Issue #2116: Weak references and weak dictionaries now support copy()ing and
1055 deepcopy()ing.
1056
Antoine Pitrouc1d09362009-05-15 12:15:51 +00001057- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
1058
Antoine Pitrou37d1c182009-05-14 21:54:00 +00001059- Issue #5918: Fix a crash in the parser module.
1060
Antoine Pitrou2ca24f02009-05-14 21:30:46 +00001061- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
1062
Antoine Pitroue4501852009-05-14 18:55:55 +00001063- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
1064 library. This means, for example, that opening an UTF-16 text file in
1065 append mode doesn't add a BOM at the end of the file if the file isn't
1066 empty.
1067
R. David Murray74b89242009-05-13 17:33:03 +00001068- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
1069 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
1070 corrects a pydoc regression.
1071
R. David Murray99352742009-05-07 18:24:38 +00001072- Issue 5955: aifc's close method did not close the file it wrapped,
1073 now it does. This also means getfp method now returns the real fp.
1074
Benjamin Peterson932073a2009-05-23 16:14:33 +00001075Installation
1076------------
1077
1078- Issue #6047: fullinstall has been removed because Python 3's executable will
1079 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +00001080
Ronald Oussorenbe7149e2009-05-26 21:39:08 +00001081- Lib/smtpd.py is no longer installed as a script.
1082
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001083Extension Modules
1084-----------------
1085
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +00001086- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +00001087
Martin v. Löwise23c8682009-05-29 16:01:34 +00001088- Issue #4873: Fix resource leaks in error cases of pwd and grp.
1089
Martin v. Löwisdb1c3992009-05-23 10:38:26 +00001090- Issue #6093: Fix off-by-one error in locale.strxfrm.
1091
Benjamin Peterson744af442009-05-23 18:51:49 +00001092- The _functools and _locale modules are now built into the libpython shared
1093 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +00001094
Antoine Pitrou20327222009-05-24 20:39:11 +00001095Build
1096-----
1097
1098- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
1099 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
1100 Clinton Roy.
1101
Brett Cannon1262e7c2009-05-11 01:47:11 +00001102Tests
1103-----
1104
1105- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
1106 tests on darwin even when the OS was installed on a case-sensitive
1107 filesystem. Also fixed tests that should not be run when
1108 sys.dont_write_bytecode is true.
1109
1110
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001111What's New in Python 3.1 beta 1?
1112================================
1113
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +00001114*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001115
1116Core and Builtins
1117-----------------
1118
Mark Dickinson865e01a2009-05-07 16:37:01 +00001119- Issue #5914: Add new C API function PyOS_string_to_double, and
1120 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
1121
Eric Smith741191f2009-05-06 13:08:15 +00001122- Issue #3382: float.__format__, complex.__format__, and %-formatting
1123 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
1124 affects nan -> NAN and inf -> INF.
1125
Mark Hammond5a607a32009-05-06 08:04:54 +00001126- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
1127 in all operations, including splitdrive, split, etc. splitunc() now issues
1128 a PendingDeprecation warning.
1129
Eric Smith63376222009-05-05 14:04:18 +00001130- Issue #5920: For float.__format__, change the behavior with the
1131 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
1132 to be like 'g' but with at least one decimal point and with a
1133 default precision of 12. Previously, the behavior the same but with
1134 a default precision of 6. This more closely matches str(), and
1135 reduces surprises when adding alignment flags to the empty
1136 presentation type. This also affects the new complex.__format__ in
1137 the same way.
1138
Martin v. Löwis011e8422009-05-05 04:43:17 +00001139- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
1140
R. David Murrayb18500d2009-05-04 22:59:07 +00001141- Issue #5890: in subclasses of 'property' the __doc__ attribute was
1142 shadowed by classtype's, even if it was None. property now
1143 inserts the __doc__ into the subclass instance __dict__.
1144
Antoine Pitrou244651a2009-05-04 18:56:13 +00001145- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
1146 sequences. Patch by Nick Barnes and Victor Stinner.
1147
Martin v. Löwise0a2b722009-05-10 08:08:56 +00001148- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +00001149
Benjamin Petersond2e0c792009-05-01 20:40:59 +00001150- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
1151 received a new method, detach(). detach() disconnects the underlying stream
1152 from the buffer or text IO and returns it.
1153
Mark Dickinson33841c32009-05-01 15:37:04 +00001154- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
1155 floats with absolute value over 1e50. Also remove length
1156 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
1157 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +00001158
Eric Smith741191f2009-05-06 13:08:15 +00001159- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +00001160 format(complex(1, 2./3), '.5') now produces a sensible result.
1161
Mark Dickinsond3ca5572009-04-29 18:47:07 +00001162- Issue #5864: Fix empty format code formatting for floats so that it
1163 never gives more than the requested number of significant digits.
1164
Eric Smith6dc46f52009-04-27 20:39:49 +00001165- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
1166 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
1167
Eric Smithcc32a112009-04-26 21:35:14 +00001168- Issue #5835: Deprecate PyOS_ascii_formatd.
1169
Martin v. Löwis71efeb72009-04-26 01:02:07 +00001170- Issue #4971: Fix titlecase for characters that are their own
1171 titlecase, but not their own uppercase.
1172
Benjamin Peterson193152c2009-04-25 01:08:45 +00001173- Issue #5283: Setting __class__ in __del__ caused a segfault.
1174
Mark Dickinsonad476da2009-04-23 19:14:16 +00001175- Issue #5816: complex(repr(z)) now recovers z exactly, even when
1176 z involves nans, infs or negative zeros.
1177
Mark Dickinson4a16e3a2009-04-23 19:15:48 +00001178- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +00001179
Mark Dickinsone6a076d2009-04-18 11:48:33 +00001180- Issue #1869 (and many duplicates): make round(x, n) correctly
1181 rounded for a float x, by using the decimal <-> binary conversions
1182 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
1183 consistently agrees with format(x, '.2f').
1184
Benjamin Petersonae937c02009-04-18 20:54:08 +00001185- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
1186 some builtin types.
1187
Eric Smith0923d1d2009-04-16 20:16:10 +00001188- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
1189
Eric Smith35e84722009-04-16 20:21:28 +00001190- Issue #5515: str.format() type 'n' combined with commas and leading
1191 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +00001192
1193- Implement PEP 378, Format Specifier for Thousands Separator, for
1194 floats.
1195
Mark Dickinson3370cce2009-04-17 22:40:53 +00001196- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001197 1e11, not 1e12. This avoids printing 13 significant digits in
1198 situations where only 12 of them are correct. Example problem
1199 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
1200 long time.)
1201
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001202- Issue #1580: On most platforms, use a 'short' float repr: for a
1203 finite float x, repr(x) now outputs a string based on the shortest
1204 sequence of decimal digits that rounds to x. Previous behaviour was
1205 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +00001206 Another minor difference is that the new repr switches to
1207 exponential notation at 1e16 instead of the previous 1e17; this
1208 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +00001209
1210 There's a new sys attribute sys.float_repr_style, which takes
1211 the value 'short' to indicate that we're using short float repr,
1212 and 'legacy' if the short float repr isn't available for one
1213 reason or another.
1214
1215 The float repr change involves incorporating David Gay's 'perfect
1216 rounding' code into the Python core (it's in Python/dtoa.c). As a
1217 secondary consequence, all string-to-float and float-to-string
1218 conversions (including all float formatting operations) will be
1219 correctly rounded on these platforms.
1220
1221 See issue 1580 discussions for details of platforms for which
1222 this change does not apply.
1223
Benjamin Peterson2808d3c2009-04-15 21:34:27 +00001224- Issue #5759: float() didn't call __float__ on str subclasses.
1225
Georg Brandlabc38772009-04-12 15:51:51 +00001226- The string.maketrans() function is deprecated; there is a new static method
1227 maketrans() on the bytes and bytearray classes. This removes confusion about
1228 the types string.maketrans() is supposed to work with, and mirrors the
1229 methods available on the str class.
1230
R. David Murraydc6da8a2009-04-09 22:16:43 +00001231- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
1232 its clarity and its speed.
1233
Matthias Klose091c7b12009-04-07 13:24:27 +00001234- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
1235 to avoid compiler warnings.
1236
Walter Dörwald8dc33d52009-05-06 14:41:26 +00001237- Issue #3739: The unicode-internal encoder now reports the number of characters
1238 consumed like any other encoder (instead of the number of bytes).
1239
Benjamin Peterson0b4915e2009-04-25 21:11:45 +00001240Installation
1241------------
1242
1243- Issue #5756: Install idle and pydoc with a 3 suffix.
1244
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001245Library
1246-------
1247
Martin v. Löwis403117a2009-05-24 19:19:17 +00001248- Issue #5311: bdist_msi can now build packages that do not depend on a
1249 specific Python version.
1250
Raymond Hettingereb816952009-05-29 01:22:18 +00001251- Issue #5150: IDLE's format menu now has an option to strip trailing
1252 whitespace.
1253
Vinay Sajipaffbd872009-06-11 10:11:47 +00001254- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +00001255 the right type checkings anymore.
1256
Thomas Heller00cfc372009-05-05 19:04:40 +00001257- Issue #4875: On win32, ctypes.util.find_library does no longer
1258 return directories.
1259
Georg Brandl243ad662009-05-05 09:00:19 +00001260- Issue #5142: Add the ability to skip modules while stepping to pdb.
1261
Georg Brandl991f9202009-05-05 08:31:54 +00001262- Issue #1309567: Fix linecache behavior of stripping subdirectories when
1263 looking for files given by a relative filename.
1264
Georg Brandleaa84ef2009-05-05 08:14:33 +00001265- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
1266 turtle demos in Demo/turtle.
1267
Antoine Pitrou3c33e082009-05-04 21:21:36 +00001268- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
1269 extracting a file to the root directory.
1270
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +00001271- Issue #5913: os.listdir() should fail for empty path on windows.
1272
Antoine Pitroua9f48a02009-05-02 21:41:14 +00001273- Issue #5084: unpickling now interns the attribute names of pickled objects,
1274 saving memory and avoiding growth in size of subsequent pickles. Proposal
1275 and original patch by Jake McGuire.
1276
Benjamin Petersonc6b607d2009-05-02 12:36:44 +00001277- The json module now works exclusively with str and not bytes.
1278
Gregory P. Smithe54dff52009-05-01 22:13:48 +00001279- Issue #3959: The ipaddr module has been added to the standard library.
1280 Contributed by Google.
1281
Antoine Pitrou7fff0962009-05-01 21:09:44 +00001282- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
1283 error when a named pipe is encountered, rather than blocking infinitely.
1284
Raymond Hettinger1f0db402009-04-29 00:38:08 +00001285- Issue #5857: tokenize.tokenize() now returns named tuples.
1286
Thomas Hellerc1edc2d2009-04-28 19:55:58 +00001287- Issue #4305: ctypes should now build again on mipsel-linux-gnu
1288
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +00001289- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
1290 string is already in normalized form, by performing a quick check beforehand.
1291 Original patch by Rauli Ruohonen.
1292
Antoine Pitrou57f3d932009-04-27 21:04:19 +00001293- Issue #5853: calling a function of the mimetypes module from several threads
1294 at once could hit the recursion limit if the mimetypes database hadn't been
1295 initialized before.
1296
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001297- Issue #5854: Updated __all__ to include some missing names and remove some
1298 names which should not be exported.
1299
Thomas Heller34596a92009-04-24 20:50:00 +00001300- Issue #3102: All global symbols that the _ctypes extension defines
1301 are now prefixed with 'Py' or '_ctypes'.
1302
1303- Issue #5041: ctypes does now allow pickling wide character.
1304
Mark Dickinsond4d95f82009-04-24 14:06:19 +00001305- Issue #5812: For the two-argument form of the Fraction constructor,
1306 Fraction(m, n), m and n are permitted to be arbitrary Rational
1307 instances.
1308
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +00001309- Issue #5812: Fraction('1e6') is valid: more generally, any string
1310 that's valid for float() is now valid for Fraction(), with the
1311 exception of strings representing NaNs and infinities.
1312
Antoine Pitroucf4c7492009-04-19 00:09:36 +00001313- Issue #5734: BufferedRWPair was poorly tested and had several glaring
1314 bugs. Patch by Brian Quinlan.
1315
R. David Murray9e94ddf2009-04-13 17:06:33 +00001316- Issue #1161031: fix readwrite select flag handling: POLLPRI now
1317 results in a handle_expt_event call, not handle_read_event, and POLLERR
1318 and POLLNVAL now call handle_close, not handle_expt_event. Also,
1319 dispatcher now has an 'ignore_log_types' attribute for suppressing
1320 log messages, which is set to 'warning' by default.
1321
Matthias Klosea3d29e82009-04-07 13:13:10 +00001322- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
1323 new arguments introduced in 2.5.
1324
Walter Dörwald1b08b302009-04-25 14:13:56 +00001325- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
1326 makeunicodedata.py and regenerated the Unicode database (This fixes
1327 u'\u1d79'.lower() == '\x00').
1328
Matthias Klose535336f2009-04-07 13:49:45 +00001329Extension Modules
1330-----------------
1331
Benjamin Petersone04b6272009-05-04 22:25:21 +00001332- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
1333 pwd.
1334
Mark Dickinsonea835e72009-04-19 20:40:33 +00001335- Issue #5463: In struct module, remove deprecated float coercion
1336 for integer type codes: struct.pack('L', 0.3) should now raise
1337 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
1338 The version number has been bumped to 0.3.
1339
Matthias Klose535336f2009-04-07 13:49:45 +00001340- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
1341 using Berkley-DB.
1342
Nick Coghlan47384702009-04-22 16:13:36 +00001343Tests
1344-----
1345
1346- Issue #5354: New test support function import_fresh_module() makes
1347 it easy to import both normal and optimised versions of modules.
1348 test_heapq and test_warnings have been adjusted to use it, tests for
1349 other modules with both C and Python implementations in the stdlib
1350 can be adjusted to use it over time.
1351
Walter Dörwald4ba80132009-04-25 12:48:43 +00001352- Issue #5837: Certain sequences of calls to set() and unset() for
1353 support.EnvironmentVarGuard objects restored the environment variables
1354 incorrectly on __exit__.
1355
Benjamin Petersonb173f782009-05-05 22:31:58 +00001356C-API
1357-----
1358
1359- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
1360
Benjamin Petersonbd35b032009-04-04 23:16:41 +00001361
Benjamin Petersond1735892009-03-07 18:46:21 +00001362What's New in Python 3.1 alpha 2?
1363=================================
1364
Benjamin Peterson88f14352009-04-04 21:06:52 +00001365*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +00001366
1367Core and Builtins
1368-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +00001369
Eric Smith1e1d7d22009-04-03 22:25:33 +00001370- Implement PEP 378, Format Specifier for Thousands Separator, for
1371 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +00001372
Benjamin Peterson8f76b492009-04-03 22:22:42 +00001373- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
1374
Benjamin Peterson7fe98532009-04-02 00:33:55 +00001375- Issue #5499: The 'c' code for argument parsing functions now only accepts a
1376 byte, and the 'C' code only accepts a unicode character.
1377
Georg Brandl406b3d82009-04-11 21:24:37 +00001378- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
1379 when hitting the recursion limit under certain circumstances.
1380
Brett Cannon0759dd62009-04-01 18:13:07 +00001381- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
1382
Georg Brandlab6f2f62009-03-31 04:16:10 +00001383- Fix a segfault when running test_exceptions with coverage, caused by
1384 insufficient checks in accessors of Exception.__context__.
1385
Guido van Rossum0ad59d42009-03-30 22:01:35 +00001386- Issue #5604: non-ASCII characters in module name passed to
1387 imp.find_module() were converted to UTF-8 while the path is
1388 converted to the default filesystem encoding, causing nonsense.
1389
Benjamin Peterson09832742009-03-26 17:15:46 +00001390- Issue #5126: str.isprintable() returned False for space characters.
1391
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +00001392- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
1393 the end sys.path, for compatibility with the system install of Python.
1394
Antoine Pitrou3a652b12009-03-23 18:52:06 +00001395- Issue #4688: Add a heuristic so that tuples and dicts containing only
1396 untrackable objects are not tracked by the garbage collector. This can
1397 reduce the size of collections and therefore the garbage collection overhead
1398 on long-running programs, depending on their particular use of datatypes.
1399
Mark Dickinson17e4fdd2009-03-23 18:44:57 +00001400- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
1401 improve its performance. Long divisions and remainder operations
1402 are now between 50% and 150% faster.
1403
Mark Dickinsonbd792642009-03-18 20:06:12 +00001404- Issue #4258: Make it possible to use base 2**30 instead of base
1405 2**15 for the internal representation of integers, for performance
1406 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
1407 --enable-big-digits option to configure, which overrides the
1408 default. Add sys.int_info structseq to provide information about
1409 the internal format.
1410
Mark Dickinson081dfee2009-03-18 14:47:41 +00001411- Issue #4474: PyUnicode_FromWideChar now converts characters outside
1412 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
1413 and sizeof(Py_UNICODE) == 2.
1414
Eric Smith8ec90442009-03-14 12:29:34 +00001415- Issue #5237: Allow auto-numbered fields in str.format(). For
1416 example: '{} {}'.format(1, 2) == '1 2'.
1417
Antoine Pitrou652e7072009-03-13 19:25:20 +00001418- Issue #5392: when a very low recursion limit was set, the interpreter would
1419 abort with a fatal error after the recursion limit was hit twice.
1420
Matthias Klose042f1332009-04-04 14:32:42 +00001421- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
1422 short file names.
1423
Benjamin Petersond1735892009-03-07 18:46:21 +00001424Library
1425-------
1426
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001427- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +00001428 mailbox.MH.get_message().
1429
Hye-Shik Chang944820b2009-04-02 10:33:16 +00001430- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
1431 error substitutions from non-strict codec error callbacks in
1432 incrementalencoder and StreamWriter.
1433
Georg Brandl33c28812009-04-01 23:07:29 +00001434- Issue #5656: Fix the coverage reporting when running the test suite with
1435 the -T argument.
1436
Raymond Hettinger3f10a952009-04-01 19:05:50 +00001437- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
1438
Georg Brandl4ed72ac2009-04-01 04:28:33 +00001439- Issue #5624: Fix the _winreg module name still used in several modules.
1440
Benjamin Petersona1b49012009-03-31 23:11:32 +00001441- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
1442
Jesse Nollera9314042009-03-31 22:36:44 +00001443- Issue #5619: Multiprocessing children disobey the debug flag and causes
1444 popups on windows buildbots. Patch applied to work around this issue.
1445
Jesse Noller32d68c22009-03-31 18:48:42 +00001446- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
1447
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +00001448- Issue #5387: Fixed mmap.move crash by integer overflow.
1449
Jesse Nollerf8d00852009-03-31 03:25:07 +00001450- Issue #5261: Patch multiprocessing's semaphore.c to support context
1451 manager use: "with multiprocessing.Lock()" works now.
1452
Brett Cannon7f6b4f82009-03-30 21:30:26 +00001453- Issue #5236: Change time.strptime() to only take strings. Didn't work with
1454 bytes already but the failure was non-obvious.
1455
Jesse Noller7af4ef82009-03-30 16:47:15 +00001456- Issue #5177: Multiprocessing's SocketListener class now uses
1457 socket.SO_REUSEADDR on all connections so that the user no longer needs
1458 to wait 120 seconds for the socket to expire.
1459
Benjamin Peterson48e24782009-03-29 13:02:52 +00001460- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
1461
Antoine Pitrou66994e12009-03-29 00:45:26 +00001462- Issue #1174606: Calling read() without arguments of an unbounded file
1463 (typically /dev/zero under Unix) could crash the interpreter.
1464
Benjamin Peterson59406a92009-03-26 17:10:29 +00001465- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
1466 io.BufferedRandom have been deprecated for removal in Python 3.2.
1467
Lars Gustäbel42e00912009-03-22 20:34:29 +00001468- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
1469 forever on incomplete input. That caused tarfile.open() to hang when used
1470 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
1471 partial bzip2 compressed data.
1472
Mark Dickinson79f52032009-03-17 23:12:51 +00001473- Issue #2110: Add support for thousands separator and 'n' type
1474 specifier to Decimal.__format__
1475
Mark Dickinson9c59fe02009-03-17 18:15:08 +00001476- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
1477 '>' alignment characters.
1478
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +00001479- The error detection code in FileIO.close() could fail to reflect the `errno`
1480 value, and report it as -1 instead.
1481
Antoine Pitroua28fcfd2009-03-13 23:42:55 +00001482- Issue #5016: FileIO.seekable() could return False if the file position
1483 was negative when truncated to a C int. Patch by Victor Stinner.
1484
Mark Dickinsonae681df2009-03-21 10:26:31 +00001485Extension Modules
1486-----------------
1487
Benjamin Petersone099b372009-04-04 17:09:35 +00001488- Issue #5391: mmap now deals exclusively with bytes.
1489
Mark Dickinsonae681df2009-03-21 10:26:31 +00001490- Issue #5463: In struct module, remove deprecated overflow wrapping
1491 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +00001492 struct.error instead of returning b'\xff\xff\xff\xff'. The
1493 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
1494 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +00001495
Benjamin Petersond1735892009-03-07 18:46:21 +00001496
Benjamin Petersona58a6262009-03-07 16:34:40 +00001497What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +00001498================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001499
Benjamin Petersona58a6262009-03-07 16:34:40 +00001500*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001501
1502Core and Builtins
1503-----------------
1504
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +00001505- The io module has been reimplemented in C for speed.
1506
Raymond Hettingerb0d56af2009-03-03 10:52:49 +00001507- Give dict views an informative __repr__.
1508
Eric Smith5e5c0db2009-02-20 14:25:03 +00001509- Issue #5247: Improve error message when unknown format codes are
1510 used when using str.format() with str, int, and float arguments.
1511
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +00001512- Issue #5249: time.strftime returned malformed string when format string
1513 contained non ascii character on windows.
1514
Benjamin Petersonf5b52242009-03-02 23:31:26 +00001515- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
1516 source has already been decoded into str.
1517
Antoine Pitrou79eee6b2009-02-13 14:01:05 +00001518- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
1519 rotating the object pointer by 4 bits to the right.
1520
Mark Dickinson87ec0852009-02-09 17:15:59 +00001521- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
1522 it now forces its argument to double before testing for infinity.
1523
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +00001524- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
1525 returns a non-number type.
1526
Benjamin Peterson87618552009-02-08 15:00:52 +00001527- Issue #5182: Removed memoryview.__str__.
1528
Mark Dickinsonc008a172009-02-01 13:59:22 +00001529- Issue #1717: Removed builtin cmp() function, dropped tp_compare
1530 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +00001531 the type definition cmpfunc. The tp_compare slot has been renamed
1532 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +00001533
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001534- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +00001535 were suppressing all exceptions. These include list() and bytearray().
1536
Mark Dickinson1124e712009-01-28 21:25:58 +00001537- Issue #4707: round(x, n) now returns an integer if x is an integer.
1538 Previously it returned a float.
1539
Antoine Pitroub52ec782009-01-25 16:34:23 +00001540- Issue #4753: By enabling a configure option named '--with-computed-gotos'
1541 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
1542 evaluation loop is compiled with a new dispatch mechanism which gives
1543 speedups of up to 20%, depending on the system, on various benchmarks.
1544
Antoine Pitrou81fabdb2009-01-22 10:11:36 +00001545- Issue #4874: Most builtin decoders now reject unicode input.
1546
Mark Dickinson9ffc0202009-01-20 20:45:53 +00001547- Issue #4842: Don't allow trailing 'L' when constructing an integer
1548 from a string.
1549
Benjamin Peterson05e782f2009-01-19 15:15:02 +00001550- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
1551
Antoine Pitroue4bc7f62009-01-17 21:06:43 +00001552- Issue #4838: When a module is deallocated, free the memory backing the
1553 optional module state data.
1554
Mark Dickinson8055afd2009-01-17 10:04:45 +00001555- Issue #4910: Rename nb_long slot to nb_reserved, and change its
1556 type to (void *).
1557
Antoine Pitrou8d4e5052009-01-13 22:59:11 +00001558- Issue #4935: The overflow checking code in the expandtabs() method common
1559 to str, bytes and bytearray could be optimized away by the compiler, letting
1560 the interpreter segfault instead of raising an error.
1561
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +00001562- Issue #3720: Fix a crash when an iterator modifies its class and removes its
1563 __next__ method.
1564
Mark Dickinsone5e298f2009-01-12 20:49:19 +00001565- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
1566 function no longer attempt to call the __long__ slot to convert an object
1567 to an integer. Only the __int__ and __trunc__ slots are examined.
1568
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +00001569- Issue #4893: Use NT threading on CE.
1570
Martin v. Löwisec59d042009-01-12 07:59:10 +00001571- Issue #4915: Port sysmodule to Windows CE.
1572
Antoine Pitrouab868312009-01-10 15:40:25 +00001573- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
1574 common cases are optimized thanks to a dedicated fast path and a moderate
1575 amount of loop unrolling.
1576
Antoine Pitrou14b78f52009-01-09 22:27:08 +00001577- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
1578 collecting the oldest generation) so that allocating lots of objects without
1579 destroying them does not show quadratic performance. Based on a proposal by
1580 Martin von Löwis at
1581 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
1582
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001583- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +00001584 having been closed (for instance, a read() call could return some
1585 previously buffered data). Patch by Dmitry Vasiliev.
1586
Antoine Pitrou05608432009-01-09 18:53:14 +00001587- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
1588 flag to work properly. Furthermore, when specifying -u, the text stdout
1589 and stderr streams have line-by-line buffering enabled (the default being
1590 to buffer arbitrary chunks of data).
1591
Raymond Hettinger35631532009-01-09 03:58:09 +00001592- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
1593 instead of ints (reducing its size from 4 to 8 times thereby reducing
1594 Python's overall memory).
1595
Antoine Pitroud35cbf62009-01-06 19:02:24 +00001596- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
1597 an existing .py counterpart, override the co_filename attributes of all
1598 code objects if the original filename is obsolete (which can happen if the
1599 file has been renamed, moved, or if it is accessed through different paths).
1600 Patch by Ziga Seilnacht and Jean-Paul Calderone.
1601
Antoine Pitrouc3b39242009-01-03 16:59:18 +00001602- Issue #4580: Fix slicing of memoryviews when the item size is greater than
1603 one byte. Also fixes the meaning of len() so that it returns the number of
1604 items, rather than the size in bytes.
1605
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001606- Issue #4075: Use OutputDebugStringW in Py_FatalError.
1607
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +00001608- Issue #4747: When the terminal does not use utf-8, executing a script with
1609 non-ascii characters in its name could fail with a "SyntaxError: None" error.
1610
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001611- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +00001612 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +00001613
Antoine Pitrou7ddda782009-01-01 15:35:33 +00001614- Issue #3680: Reference cycles created through a dict, set or deque iterator
1615 did not get collected.
1616
Nick Coghlanf1f2f682008-12-30 07:29:12 +00001617- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
1618 where the tp_hash and tp_dict slots are both NULL.
1619
Georg Brandlccc47b62008-12-28 11:44:14 +00001620- Issue #4759: None is now allowed as the first argument of
1621 bytearray.translate(). It was always allowed for bytes.translate().
1622
Skip Montanaro80072cb2008-12-23 03:51:14 +00001623- Added test case to ensure attempts to read from a file opened for writing
1624 fail.
1625
Antoine Pitrou51f3ef92008-12-20 13:14:23 +00001626- Issue #3106: Speedup some comparisons (str/str and int/int).
1627
Antoine Pitrouf289ae62008-12-18 11:06:25 +00001628- Issue #2183: Simplify and optimize bytecode for list, dict and set
1629 comprehensions. Original patch for list comprehensions by Neal Norwitz.
1630
Antoine Pitrou621601a2008-12-17 23:18:19 +00001631- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
1632 print elapsed times, not only when some objects are uncollectable /
1633 unreachable. Original patch by Neil Schemenauer.
1634
Mark Dickinson54bc1ec2008-12-17 16:19:07 +00001635- Issue #3439: Add a bit_length method to int.
1636
Mark Dickinsonda2706b2008-12-11 18:03:03 +00001637- Issue #2173: When getting device encoding, check that return value of
1638 nl_langinfo is not the empty string. This was causing silent build
1639 failures on OS X.
1640
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +00001641- Issue #4597: Fixed several opcodes that weren't always propagating
1642 exceptions.
1643
1644- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +00001645 context manager returns a value that cannot be converted to a bool.
1646
Mark Dickinsonfd24b322008-12-06 15:33:31 +00001647- Issue #4445: Replace "sizeof(PyBytesObject)" with
1648 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
1649 bytes instances. On a typical machine this saves 3 bytes of memory
1650 (on average) per allocation of a bytes instance.
1651
Christian Heimesa872de52008-12-05 08:26:55 +00001652- Issue #4533: File read operation was dreadfully slow due to a slowly
1653 growing read buffer. Fixed by using the same growth rate algorithm as
1654 Python 2.x.
1655
Antoine Pitrou5504e892008-12-06 21:27:53 +00001656- Issue #4509: Various issues surrounding resize of bytearray objects to
1657 which there are buffer exports (e.g. memoryview instances).
1658
Georg Brandlf9734072008-12-07 15:30:06 +00001659- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1660 method on file objects with closefd=False. The file descriptor is still
1661 kept open but the file object behaves like a closed file. The ``FileIO``
1662 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001663
Antoine Pitroubc420402008-12-07 20:14:49 +00001664- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1665 larger than 1.
1666
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001667- Issue #4748: Lambda generators no longer return a value.
1668
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001669- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1670
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001671- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1672 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1673 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1674 of using the replace error handler in PyUnicode_DecodeUTF8().
1675
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001676Library
1677-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001678
Tarek Ziadé04fe7c02009-10-25 23:08:47 +00001679- Issue #7071: byte-compilation in Distutils is now done with respect to
1680 sys.dont_write_bytecode.
1681
Tarek Ziadé978cca62009-10-24 13:38:27 +00001682- Issue #7066: archive_util.make_archive now restores the cwd if an error is
1683 raised. Initial patch by Ezio Melotti.
1684
Vinay Sajip96d4aa32009-10-16 14:06:44 +00001685- Issue #6516: Added owner/group support when creating tar archives in
Tarek Ziadé05b30342009-10-02 23:56:02 +00001686 Distutils.
1687
Tarek Ziadé31d46072009-09-21 13:55:19 +00001688- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
1689
Tarek Ziadé165581c2009-09-09 08:48:07 +00001690- Issue #6163: Fixed HP-UX runtime library dir options in
1691 distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
1692 Michael Haubenwallner.
1693
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001694- Issue #6693: New functions in site.py to get user/global site packages paths.
1695
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001696- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1697 opening an empty or very small file.
1698
1699- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001700 behavior is similar when used with -O.
1701
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001702- unittest has been split up into a package. All old names should still work.
1703
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001704- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1705 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1706 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1707 for the obsolete get_versions() functions.
1708
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001709- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1710
1711- Issue #6314: logging: Extra checks on the "level" argument in more places.
1712
1713- Issue #2622: Fixed an ImportError when importing email.messsage from a
1714 standalone application built with py2exe or py2app.
1715
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001716- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001717
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001718- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001719 attribute.
1720
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001721- Issue #6413: Fixed the log level in distutils.dist for announce.
1722
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001723- Issue #6403: Fixed package path usage in build_ext.
1724
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001725- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1726 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1727 descriptor errors
1728
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001729- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001730 extension in a subdirectory if the extension name had dots.
1731
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001732- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001733 unixcompiler. Original patch by Sridhar Ratnakumar.
1734
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001735- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1736 httplib, allowing the usage of http_proxy.
1737
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001738- Issue #6287: Added the license field in Distutils documentation.
1739
Tarek Ziadéff543362009-06-11 09:25:41 +00001740- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1741
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001742- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1743 in Makefiles. This prevents compile errors when using syntax like:
1744 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1745
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001746- Issue #6131: test_modulefinder leaked when run after test_distutils.
1747 Patch by Hirokazu Yamamoto.
1748
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001749- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1750
Vinay Sajipaffbd872009-06-11 10:11:47 +00001751- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001752 and tests on pywin32 by Tim Golden.
1753
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001754- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1755
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001756- Issue #6046: Fixed the library extension when distutils build_ext is used
1757 inplace. Initial patch by Roumen Petrov.
1758
Vinay Sajipaffbd872009-06-11 10:11:47 +00001759- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001760 subcommand.
1761
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001762- Issue #6022: a test file was created in the current working directory by
1763 test_get_outputs in Distutils.
1764
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001765- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1766 inplace option. Initial patch by kxroberto.
1767
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001768- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1769 for old-style extensions.
1770
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001771- Issue #5976: Fixed Distutils test_check_environ.
1772
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001773- Issue #5941: Distutils build_clib command was not working anymore because
1774 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1775 Makefile besides AR and make Distutils use it. Original patch by David
1776 Cournapeau.
1777
R. David Murrayb507d2e2009-04-29 15:34:32 +00001778- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1779
Vinay Sajipaffbd872009-06-11 10:11:47 +00001780- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001781 anymore.
1782
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001783- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001784 sysconfig.get_config_vars.
1785
Tarek Ziadé23336082009-04-25 12:39:56 +00001786- Issue #4951: Fixed failure in test_httpservers.
1787
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001788- Issue #5795: Fixed test_distutils failure on Debian ppc.
1789
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001790- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1791
Georg Brandl1f9fa312009-04-27 16:42:58 +00001792- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1793 a value in SafeConfigParser.
1794
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001795- Issue #5732: added a new command in Distutils: check.
1796
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001797- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001798 platforms. Initial patch by Paul Moore.
1799
Tarek Ziadéf6370502009-04-05 22:57:21 +00001800- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1801 Initial fix by Steven Bethard.
1802
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001803- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1804 Initial fix by Wayne Davison.
1805
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001806- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001807
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001808- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001809
Brett Cannonf47e84c2009-04-01 16:06:01 +00001810- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1811 instead of performing them in functions. Helps prevent import deadlocking in
1812 threads.
1813
R. David Murraye59482e2009-04-01 03:42:00 +00001814- Issue #2522: locale.format now checks its first argument to ensure it has
1815 been passed only one pattern, avoiding mysterious errors where it appeared
1816 that it was failing to do localization.
1817
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001818- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1819 Brandl.
1820
Antoine Pitrou350370c2009-03-14 00:13:13 +00001821- Issue #1222: locale.format() bug when the thousands separator is a space
1822 character.
1823
Tarek Ziadé516db942009-03-11 12:52:00 +00001824- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1825 Tim Golden.
1826
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001827- collections.deque() objects now have a read-only attribute called maxlen.
1828
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001829- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1830 it is has been populated and properly configured in order to prevent
1831 window flashing.
1832
Guilherme Polo56f5be52009-03-07 01:54:57 +00001833- Issue #4792: Prevent a segfault in _tkinter by using the
1834 guaranteed to be safe interp argument given to the PythonCmd in place of
1835 the Tcl interpreter taken from a PythonCmd_ClientData.
1836
1837- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1838
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001839- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1840 Original patch by Akira Kitada.
1841
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001842- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1843
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001844- Issue #5385: Fixed mmap crash after resize failure on windows.
1845
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001846- Issue #5179: Fixed subprocess handle leak on failure on windows.
1847
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001848- PEP 372: Added collections.OrderedDict().
1849
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001850- The _asdict() for method for namedtuples now returns an OrderedDict().
1851
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001852- configparser now defaults to using an ordered dictionary.
1853
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001854- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1855 import guess_extension`` was used.
1856
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001857- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1858 with same tagname but larger size than first map. (Windows)
1859
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001860- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1861 overrun.
1862
Tarek Ziadéf0721222009-02-28 10:16:43 +00001863- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1864 bdist_rpm command.
1865
1866- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1867
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001868- Issue #5052: make Distutils compatible with 2.3 again.
1869
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001870- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1871 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001872
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001873- Issue #5287: Add exception handling around findCaller() call to help out
1874 IronPython.
1875
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001876- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1877 The file was resized to wrong size.
1878
1879- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1880
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001881- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001882 from the package_data and the data_files metadata.
1883
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001884- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001885 support.TempdirManager, to avoid writing in the tests directory.
1886
Tarek Ziadé68c50952009-02-13 23:04:17 +00001887- Issue #4524: distutils build_script command failed with --with-suffix=3.
1888 Initial patch by Amaury Forgeot d'Arc.
1889
Tarek Ziadé811d6242009-02-13 22:26:15 +00001890- Issue #2461: added tests for distutils.util
1891
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001892- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1893 which inherited from numbers.py which did not have __slots__ defined. The
1894 numbers hierarchy now has its own __slots__ declarations.
1895
Antoine Pitroub353c122009-02-11 00:39:14 +00001896- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1897 encoding.
1898
Thomas Heller465c8022009-02-10 18:59:04 +00001899- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1900 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1901
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001902- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1903 under NT and OS2. Patch by Philip Jenvey.
1904
Brett Cannonbefb14f2009-02-10 02:10:16 +00001905- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1906 to be recreated. This avoids a timing hole thanks to the old reliance on the
1907 ctime of the files involved.
1908
Guilherme Polob681df42009-02-09 22:33:59 +00001909- Issue #5122: Synchronize tk load failure check to prevent a potential
1910 deadlock.
1911
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001912- Issue #1818: collections.namedtuple() now supports a keyword argument
1913 'rename' which lets invalid fieldnames be automatically converted to
1914 positional names in the form, _1, _2, ...
1915
Guilherme Poloae098992009-02-09 16:44:24 +00001916- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1917
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001918- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1919 public documented method ``ZipImporter.get_filename()``.
1920
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001921- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1922 the execution of packages by looking for and executing a ``__main__``
1923 submodule when a package name is supplied. Initial patch by Andi
1924 Vajda.
1925
Guilherme Polo491aee22009-02-06 23:16:11 +00001926- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1927 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1928 Tkapp_Call when calling from a thread different than the one that created
1929 the Tcl interpreter. Patch by Robert Hancock.
1930
Eric Smith0e5b5622009-02-06 01:32:42 +00001931- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1932 Ross Light.
1933
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001934- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001935 environment/Makefile. Patch by Douglas Greiman.
1936
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001937- Issue #1276768: The verbose option was not used in the code of
1938 distutils.file_util and distutils.dir_util.
1939
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001940- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001941 --enabled-shared activated. Initial patch by Dave Peterson.
1942
Guilherme Polo7f423952009-02-02 21:17:09 +00001943- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1944
Raymond Hettinger85602262009-02-03 04:19:10 +00001945- The shelve module now defaults to pickle protocol 3.
1946
Brett Cannone61426e2009-01-30 01:31:34 +00001947- Fix a bug in the trace module where a bytes object from co_lnotab had its
1948 items being passed through ord().
1949
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001950- Issue #2047: shutil.move() could believe that its destination path was
1951 inside its source path if it began with the same letters (e.g. "src" vs.
1952 "src.new").
1953
Guilherme Polo5f238482009-01-28 14:41:10 +00001954- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1955
Raymond Hettinger89e12962009-01-26 02:09:03 +00001956- Removed isSequenceType(), isMappingType, and isNumberType() from the
1957 operator module; use the abstract base classes instead. Also removed
1958 the repeat() function; use mul() instead.
1959
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001960- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001961 collections.namedtuple() relied on __name__ being defined.
1962
1963- Backport importlib from Python 3.1. Only the import_module() function has
1964 been backported to help facilitate transitions from 2.7 to 3.1.
1965
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001966- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1967 the tar file was overriden by the gztar one.
1968
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001969- Issue #4863: distutils.mwerkscompiler has been removed.
1970
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001971- Added a new itertools functions: combinations_with_replacement()
1972 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001973
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001974- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001975 allowed non-integer arguments.
1976
Jesse Noller41faa542009-01-25 03:45:53 +00001977- Fix and properly document the multiprocessing module's logging
1978 support, expose the internal levels and provide proper usage
1979 examples.
1980
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001981- Issue #1672332: fix unpickling of subnormal floats, which was
1982 producing a ValueError on some platforms.
1983
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001984- Issue #3881: Help Tcl to load even when started through the
1985 unreadable local symlink to "Program Files" on Vista.
1986
Martin v. Löwis59e47792009-01-24 14:10:07 +00001987- Issue #4710: Extract directories properly in the zipfile module;
1988 allow adding directories to a zipfile.
1989
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001990- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001991 --without-threads argument. When this occurs, _multiprocessing will
1992 be disabled, and not compiled.
1993
Antoine Pitrou08838b62009-01-21 00:55:13 +00001994- Issue #5008: When a file is opened in append mode with the new IO library,
1995 do an explicit seek to the end of file (so that e.g. tell() returns the
1996 file size rather than 0). This is consistent with the behaviour of the
1997 traditional 2.x file object.
1998
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001999- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
2000 parameter was set.
2001
Mark Dickinson8dd05142009-01-20 20:43:58 +00002002- Issue #4842: Always append a trailing 'L' when pickling longs using
2003 pickle protocol 0. When reading, the 'L' is optional.
2004
Brett Cannonafccd632009-01-20 02:21:27 +00002005- Add the importlib package.
2006
Jesse Noller9a0fc972009-01-18 21:12:58 +00002007- Issue #4301: Patch the logging module to add processName support, remove
2008 _check_logger_class from multiprocessing.
2009
Jesse Noller1cbb17a2009-01-18 19:45:18 +00002010- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002011 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00002012
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00002013- Issue #4959: inspect.formatargspec now works for keyword only arguments
2014 without defaults.
2015
Jesse Noller6214edd2009-01-19 16:23:53 +00002016- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
2017 for *nix machines for negative handles and large int handles. Without this check
2018 it is possible to segfault the interpreter.
2019
Jesse Nollerb0516a62009-01-18 03:11:38 +00002020- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
2021 in sharedctypes.py.
2022
2023- Issue #1225107: inspect.isclass() returned True for instances with a custom
2024 __getattr__.
2025
Gregory P. Smithde3369f2009-01-12 04:50:11 +00002026- Issue #3826 and #4791: The socket module now closes the underlying socket
2027 appropriately when it is being used via socket.makefile() objects
2028 rather than delaying the close by waiting for garbage collection to do it.
2029
Raymond Hettingerb8baf632009-01-14 02:20:07 +00002030- Issue #1696199: Add collections.Counter() for rapid and convenient
2031 counting.
2032
Antoine Pitrou308705e2009-01-10 16:22:51 +00002033- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
2034
Thomas Heller5e4e4272009-01-08 09:34:20 +00002035- Issue #4867: Fixed a crash in ctypes when passing a string to a
2036 function without defining argtypes.
2037
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00002038- Issue #4272: Add an optional argument to the GzipFile constructor to override
2039 the timestamp in the gzip stream. The default value remains the current time.
2040 The information can be used by e.g. gunzip when decompressing. Patch by
2041 Jacques Frechet.
2042
Mark Dickinson315a20a2009-01-04 21:34:18 +00002043- Restore Python 2.3 compatibility for decimal.py.
2044
Guilherme Polo3f5f8222009-01-03 22:00:39 +00002045- Issue #3638: Remove functions from _tkinter module level that depend on
2046 TkappObject to work with multiple threads.
2047
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002048- Issue #4718: Adapt the wsgiref package so that it actually works with
2049 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00002050 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
2051
Raymond Hettinger771ed762009-01-03 19:20:32 +00002052- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
2053 to the decimal module.
2054
Georg Brandl3a9b0622009-01-03 22:07:57 +00002055- Fractions.from_float() no longer loses precision for integers too big to
2056 cast as floats.
2057
Mark Dickinsonf9236412009-01-02 23:23:21 +00002058- Issue #4812: add missing underscore prefix to some internal-use-only
2059 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
2060
Georg Brandl1cdd83c2009-04-05 20:24:29 +00002061- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00002062 did unnecessary work in the common case where no key function was specified.
2063
Georg Brandlb1441c72009-01-03 22:33:39 +00002064- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
2065 the function is not a generator.
2066
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002067- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
2068 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00002069
Vinay Sajip6268cbc2009-01-21 00:19:28 +00002070- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00002071 function. Original patch by Thomas Heller.
2072
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00002073- Issue #3767: Convert Tk object to string in tkColorChooser.
2074
Martin v. Löwise354d782008-12-29 16:03:04 +00002075- Issue #3248: Allow placing ScrolledText in a PanedWindow.
2076
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00002077- Issue #4444: Allow assertRaises() to be used as a context handler, so that
2078 the code under test can be written inline if more practical.
2079
Georg Brandldb7b6b92009-01-01 15:53:14 +00002080- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
2081 works as expected in the interactive environment.
2082
Antoine Pitroudb5fe662008-12-27 15:50:40 +00002083- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
2084 Gabriel Genellina.
2085
Antoine Pitrou180a3362008-12-14 16:36:46 +00002086- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
2087 boundary.
2088
Nick Coghlanf088e5e2008-12-14 11:50:48 +00002089- Issue #4223: inspect.getsource() will now correctly display source code
2090 for packages loaded via zipimport (or any other conformant PEP 302
2091 loader). Original patch by Alexander Belopolsky.
2092
2093- Issue #4201: pdb can now access and display source code loaded via
2094 zipimport (or any other conformant PEP 302 loader). Original patch by
2095 Alexander Belopolsky.
2096
2097- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
2098 302 conformant loader) will now work correctly in most cases (they
2099 are still subject to the constraints that exist for all code running
2100 from inside a module loaded via a PEP 302 loader and attempting to
2101 perform IO operations based on __file__). Original patch by
2102 Alexander Belopolsky.
2103
2104- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
2105 allows backporting to maintenance branches. Original patch by
2106 Alexander Belopolsky.
2107
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00002108- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
2109 a non-ASCII letter.
2110
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00002111- Issue #4616: TarFile.utime(): Restore directory times on Windows.
2112
Benjamin Peterson433f32c2008-12-12 01:25:05 +00002113- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
2114 codec cannot be found. This is for compatibility with the builtin behavior.
2115
Facundo Batista708d5812008-12-11 04:20:07 +00002116- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
2117 give correct results in the case where one argument is a quiet NaN
2118 and the other is a finite number that requires rounding.
2119
Skip Montanaroc1ce2862008-12-06 17:25:02 +00002120- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
2121 libs.
2122
Georg Brandlf9734072008-12-07 15:30:06 +00002123- Added the subprocess.check_call_output() convenience function to get output
2124 from a subprocess on success or raise an exception on error.
2125
2126- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2127 support unusual filenames (such as those containing semi-colons) in
2128 Content-Disposition headers.
2129
2130- Issue #4384: Added logging integration with warnings module using
2131 captureWarnings(). This change includes a NullHandler which does nothing;
2132 it will be of use to library developers who want to avoid the "No handlers
2133 could be found for logger XXX" message which can appear if the library user
2134 doesn't configure logging.
2135
2136- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
2137 exception.
2138
Georg Brandleee31162008-12-07 15:15:22 +00002139- Issue #4529: fix the parser module's validation of try-except-finally
2140 statements.
2141
2142- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
2143 not a malformed option.
2144
2145- Added the subprocess.check_output() convenience function to get output
2146 from a subprocess on success or raise an exception on error.
2147
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00002148- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
2149 the corresponding tests now pass.
2150
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00002151- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
2152 it was calling the wrong open() function.
2153
Fred Drake9a0a65b2008-12-04 19:24:50 +00002154- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
2155 support unusual filenames (such as those containing semi-colons) in
2156 Content-Disposition headers.
2157
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00002158- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
2159 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
2160
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00002161- Issue #5104: The socket module now raises OverflowError when 16-bit port and
2162 protocol numbers are supplied outside the allowed 0-65536 range on bind()
2163 and getservbyport().
2164
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00002165- Windows locale mapping updated to Vista.
2166
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002167Tools/Demos
2168-----------
2169
Antoine Pitrou8a681222009-02-07 17:13:31 +00002170- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
2171 and make it 2.6-compatible.
2172
Guilherme Poloa7d27972009-01-28 16:06:51 +00002173- Ttk demos added in Demo/tkinter/ttk/
2174
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00002175- Issue #4677: add two list comprehension tests to pybench.
2176
Georg Brandlb1441c72009-01-03 22:33:39 +00002177
2178Build
2179-----
2180
Benjamin Petersonf53eec82009-05-23 19:36:27 +00002181- Issue #6094: Build correctly with Subversion 1.7.
2182
Martin v. Löwis8482ef92009-05-05 16:14:30 +00002183- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
2184
Antoine Pitrou8966c992009-05-01 21:18:27 +00002185- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
2186 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
2187
Matthias Klose55708cc2009-04-30 08:06:49 +00002188- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00002189 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00002190
Matthias Klose906785c2009-02-22 23:18:38 +00002191- Link the shared python library with $(MODLIBS).
2192
Martin v. Löwis11f72102009-02-10 13:13:30 +00002193- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
2194
Martin v. Löwisbc186a82009-02-02 15:32:22 +00002195- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
2196
Martin v. Löwise97637d2009-01-11 09:45:11 +00002197- Issue #4895: Use _strdup on Windows CE.
2198
Georg Brandlb1441c72009-01-03 22:33:39 +00002199- Issue #4472: "configure --enable-shared" now works on OSX
2200
2201- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
2202
2203- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
2204
2205- Issue #4289: Remove Cancel button from AdvancedDlg.
2206
2207- Issue #1656675: Register a drop handler for .py* files on Windows.
2208
2209- Issue #4120: Exclude manifest from extension modules in VS2008.
2210
2211- Issue #4091: Install pythonxy.dll in system32 again.
2212
2213- Issue #4018: Disable "for me" installations on Vista.
2214
2215- Issue #3758: Add ``patchcheck`` build target to .PHONY.
2216
2217- Issue #4204: Fixed module build errors on FreeBSD 4.
2218
2219
2220C-API
2221-----
2222
Sean Reifscheider642d96a2009-08-01 23:55:06 +00002223- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
2224 NUL: Bogus TypeError detail string.
2225
Mark Dickinson21776072009-02-10 16:13:25 +00002226- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
2227 for negative arguments. Previously, it raised TypeError.
2228
Georg Brandlb1441c72009-01-03 22:33:39 +00002229- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
2230
2231- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
2232 the GIL is released, or owned by another thread.
2233
2234- Issue #4122: On Windows, fix a compilation error when using the
2235 Py_UNICODE_ISSPACE macro in an extension module.
2236
2237
Mark Dickinsone675f082008-12-11 21:56:00 +00002238Extension Modules
2239-----------------
2240
Gregory P. Smith365a1862009-02-12 07:35:29 +00002241- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
2242 supporting objects as input no matter how it was compiled (built in
2243 implementations or external openssl library).
2244
Mark Dickinson29500f62009-01-15 15:36:10 +00002245- Issue #4397: Fix occasional test_socket failure on OS X.
2246
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00002247- Issue #4279: Fix build of parsermodule under Cygwin.
2248
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00002249- Issue #4751: hashlib now releases the GIL when hashing large buffers
2250 (with a hardwired threshold of 2048 bytes), allowing better parallelization
2251 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
2252
Martin v. Löwis5c88d812009-01-02 20:47:48 +00002253- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
2254
Antoine Pitrou31f30b12009-01-02 17:34:35 +00002255- Issue #4738: Each zlib object now has a separate lock, allowing to compress
2256 or decompress several streams at once on multi-CPU systems. Also, the GIL
2257 is now released when computing the CRC of a large buffer. Patch by ebfe.
2258
Georg Brandlb1441c72009-01-03 22:33:39 +00002259- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
2260
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00002261- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
2262
Mark Dickinsone675f082008-12-11 21:56:00 +00002263- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
2264 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00002265
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00002266- Issue #4583: array.array would not always prohibit resizing when a buffer
2267 has been exported, resulting in an interpreter crash when accessing the
2268 buffer.
2269
Martin v. Löwis841edad2008-11-30 10:36:49 +00002270
Jack Diederiche0cbd692009-04-01 04:27:09 +00002271- Issue #5228: Make functools.partial objects can now be pickled.
2272
Guilherme Polo9de29af2009-01-28 20:40:48 +00002273Tests
2274-----
2275
Antoine Pitrou88909542009-06-29 13:54:42 +00002276- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
2277 regression tests in parallel, shortening the total runtime.
2278
Guilherme Polo2a998fa2009-06-21 17:40:07 +00002279- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
2280 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
2281 the same behaviour as test_ttkguionly (and now also test_tk) which is to
2282 skip the tests if DISPLAY is defined but can't be used.
2283
R. David Murraya21e4ca2009-03-31 23:16:50 +00002284- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00002285 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00002286 from test support, which does the conversion.
2287
Guilherme Polo9de29af2009-01-28 20:40:48 +00002288- Issue #5083: New 'gui' resource for regrtest.
2289
2290
Brett Cannon7317c1e2008-11-25 19:19:17 +00002291Docs
2292----
2293
Georg Brandl52b92cc2008-05-25 09:43:03 +00002294
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00002295**(For information about older versions, consult the HISTORY file.)**