blob: 217276f11b06d5cdbf90b23a454c3a49f756fff9 [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 Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Eric Smithcc32a112009-04-26 21:35:14 +000015- Issue #5835: Deprecate PyOS_ascii_formatd.
16
Martin v. Löwis71efeb72009-04-26 01:02:07 +000017- Issue #4971: Fix titlecase for characters that are their own
18 titlecase, but not their own uppercase.
19
Benjamin Peterson193152c2009-04-25 01:08:45 +000020- Issue #5283: Setting __class__ in __del__ caused a segfault.
21
Mark Dickinsonad476da2009-04-23 19:14:16 +000022- Issue #5816: complex(repr(z)) now recovers z exactly, even when
23 z involves nans, infs or negative zeros.
24
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000025- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000026
Mark Dickinsone6a076d2009-04-18 11:48:33 +000027- Issue #1869 (and many duplicates): make round(x, n) correctly
28 rounded for a float x, by using the decimal <-> binary conversions
29 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
30 consistently agrees with format(x, '.2f').
31
Benjamin Petersonae937c02009-04-18 20:54:08 +000032- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
33 some builtin types.
34
Eric Smith0923d1d2009-04-16 20:16:10 +000035- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
36
Eric Smith35e84722009-04-16 20:21:28 +000037- Issue #5515: str.format() type 'n' combined with commas and leading
38 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000039
40- Implement PEP 378, Format Specifier for Thousands Separator, for
41 floats.
42
Mark Dickinson3370cce2009-04-17 22:40:53 +000043- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000044 1e11, not 1e12. This avoids printing 13 significant digits in
45 situations where only 12 of them are correct. Example problem
46 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
47 long time.)
48
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000049- Issue #1580: On most platforms, use a 'short' float repr: for a
50 finite float x, repr(x) now outputs a string based on the shortest
51 sequence of decimal digits that rounds to x. Previous behaviour was
52 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000053 Another minor difference is that the new repr switches to
54 exponential notation at 1e16 instead of the previous 1e17; this
55 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000056
57 There's a new sys attribute sys.float_repr_style, which takes
58 the value 'short' to indicate that we're using short float repr,
59 and 'legacy' if the short float repr isn't available for one
60 reason or another.
61
62 The float repr change involves incorporating David Gay's 'perfect
63 rounding' code into the Python core (it's in Python/dtoa.c). As a
64 secondary consequence, all string-to-float and float-to-string
65 conversions (including all float formatting operations) will be
66 correctly rounded on these platforms.
67
68 See issue 1580 discussions for details of platforms for which
69 this change does not apply.
70
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000071- Issue #5759: float() didn't call __float__ on str subclasses.
72
Georg Brandlabc38772009-04-12 15:51:51 +000073- The string.maketrans() function is deprecated; there is a new static method
74 maketrans() on the bytes and bytearray classes. This removes confusion about
75 the types string.maketrans() is supposed to work with, and mirrors the
76 methods available on the str class.
77
R. David Murraydc6da8a2009-04-09 22:16:43 +000078- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
79 its clarity and its speed.
80
Matthias Klose091c7b12009-04-07 13:24:27 +000081- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
82 to avoid compiler warnings.
83
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000084Installation
85------------
86
87- Issue #5756: Install idle and pydoc with a 3 suffix.
88
Benjamin Petersonbd35b032009-04-04 23:16:41 +000089Library
90-------
91
Vinay Sajipad5fa2f2009-04-27 13:55:05 +000092- Issue #5854: Updated __all__ to include some missing names and remove some
93 names which should not be exported.
94
Thomas Heller34596a92009-04-24 20:50:00 +000095- Issue #3102: All global symbols that the _ctypes extension defines
96 are now prefixed with 'Py' or '_ctypes'.
97
98- Issue #5041: ctypes does now allow pickling wide character.
99
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000100- Issue #5812: For the two-argument form of the Fraction constructor,
101 Fraction(m, n), m and n are permitted to be arbitrary Rational
102 instances.
103
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000104- Issue #5812: Fraction('1e6') is valid: more generally, any string
105 that's valid for float() is now valid for Fraction(), with the
106 exception of strings representing NaNs and infinities.
107
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000108- Issue #5734: BufferedRWPair was poorly tested and had several glaring
109 bugs. Patch by Brian Quinlan.
110
R. David Murray9e94ddf2009-04-13 17:06:33 +0000111- Issue #1161031: fix readwrite select flag handling: POLLPRI now
112 results in a handle_expt_event call, not handle_read_event, and POLLERR
113 and POLLNVAL now call handle_close, not handle_expt_event. Also,
114 dispatcher now has an 'ignore_log_types' attribute for suppressing
115 log messages, which is set to 'warning' by default.
116
Matthias Klosea3d29e82009-04-07 13:13:10 +0000117- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
118 new arguments introduced in 2.5.
119
Walter Dörwald1b08b302009-04-25 14:13:56 +0000120- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
121 makeunicodedata.py and regenerated the Unicode database (This fixes
122 u'\u1d79'.lower() == '\x00').
123
Matthias Klose535336f2009-04-07 13:49:45 +0000124Extension Modules
125-----------------
126
Mark Dickinsonea835e72009-04-19 20:40:33 +0000127- Issue #5463: In struct module, remove deprecated float coercion
128 for integer type codes: struct.pack('L', 0.3) should now raise
129 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
130 The version number has been bumped to 0.3.
131
Matthias Klose535336f2009-04-07 13:49:45 +0000132- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
133 using Berkley-DB.
134
Nick Coghlan47384702009-04-22 16:13:36 +0000135Tests
136-----
137
138- Issue #5354: New test support function import_fresh_module() makes
139 it easy to import both normal and optimised versions of modules.
140 test_heapq and test_warnings have been adjusted to use it, tests for
141 other modules with both C and Python implementations in the stdlib
142 can be adjusted to use it over time.
143
Walter Dörwald4ba80132009-04-25 12:48:43 +0000144- Issue #5837: Certain sequences of calls to set() and unset() for
145 support.EnvironmentVarGuard objects restored the environment variables
146 incorrectly on __exit__.
147
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000148
Benjamin Petersond1735892009-03-07 18:46:21 +0000149What's New in Python 3.1 alpha 2?
150=================================
151
Benjamin Peterson88f14352009-04-04 21:06:52 +0000152*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000153
154Core and Builtins
155-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000156
Eric Smith1e1d7d22009-04-03 22:25:33 +0000157- Implement PEP 378, Format Specifier for Thousands Separator, for
158 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000159
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000160- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
161
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000162- Issue #5499: The 'c' code for argument parsing functions now only accepts a
163 byte, and the 'C' code only accepts a unicode character.
164
Georg Brandl406b3d82009-04-11 21:24:37 +0000165- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
166 when hitting the recursion limit under certain circumstances.
167
Brett Cannon0759dd62009-04-01 18:13:07 +0000168- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
169
Georg Brandlab6f2f62009-03-31 04:16:10 +0000170- Fix a segfault when running test_exceptions with coverage, caused by
171 insufficient checks in accessors of Exception.__context__.
172
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000173- Issue #5604: non-ASCII characters in module name passed to
174 imp.find_module() were converted to UTF-8 while the path is
175 converted to the default filesystem encoding, causing nonsense.
176
Benjamin Peterson09832742009-03-26 17:15:46 +0000177- Issue #5126: str.isprintable() returned False for space characters.
178
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000179- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
180 the end sys.path, for compatibility with the system install of Python.
181
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000182- Issue #4688: Add a heuristic so that tuples and dicts containing only
183 untrackable objects are not tracked by the garbage collector. This can
184 reduce the size of collections and therefore the garbage collection overhead
185 on long-running programs, depending on their particular use of datatypes.
186
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000187- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
188 improve its performance. Long divisions and remainder operations
189 are now between 50% and 150% faster.
190
Mark Dickinsonbd792642009-03-18 20:06:12 +0000191- Issue #4258: Make it possible to use base 2**30 instead of base
192 2**15 for the internal representation of integers, for performance
193 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
194 --enable-big-digits option to configure, which overrides the
195 default. Add sys.int_info structseq to provide information about
196 the internal format.
197
Mark Dickinson081dfee2009-03-18 14:47:41 +0000198- Issue #4474: PyUnicode_FromWideChar now converts characters outside
199 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
200 and sizeof(Py_UNICODE) == 2.
201
Eric Smith8ec90442009-03-14 12:29:34 +0000202- Issue #5237: Allow auto-numbered fields in str.format(). For
203 example: '{} {}'.format(1, 2) == '1 2'.
204
Antoine Pitrou652e7072009-03-13 19:25:20 +0000205- Issue #5392: when a very low recursion limit was set, the interpreter would
206 abort with a fatal error after the recursion limit was hit twice.
207
Matthias Klose042f1332009-04-04 14:32:42 +0000208- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
209 short file names.
210
Benjamin Petersond1735892009-03-07 18:46:21 +0000211Library
212-------
213
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000214- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000215 mailbox.MH.get_message().
216
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000217- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
218 error substitutions from non-strict codec error callbacks in
219 incrementalencoder and StreamWriter.
220
Georg Brandl33c28812009-04-01 23:07:29 +0000221- Issue #5656: Fix the coverage reporting when running the test suite with
222 the -T argument.
223
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000224- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
225
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000226- Issue #5624: Fix the _winreg module name still used in several modules.
227
Benjamin Petersona1b49012009-03-31 23:11:32 +0000228- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
229
Jesse Nollera9314042009-03-31 22:36:44 +0000230- Issue #5619: Multiprocessing children disobey the debug flag and causes
231 popups on windows buildbots. Patch applied to work around this issue.
232
Jesse Noller32d68c22009-03-31 18:48:42 +0000233- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
234
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000235- Issue #5387: Fixed mmap.move crash by integer overflow.
236
Jesse Nollerf8d00852009-03-31 03:25:07 +0000237- Issue #5261: Patch multiprocessing's semaphore.c to support context
238 manager use: "with multiprocessing.Lock()" works now.
239
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000240- Issue #5236: Change time.strptime() to only take strings. Didn't work with
241 bytes already but the failure was non-obvious.
242
Jesse Noller7af4ef82009-03-30 16:47:15 +0000243- Issue #5177: Multiprocessing's SocketListener class now uses
244 socket.SO_REUSEADDR on all connections so that the user no longer needs
245 to wait 120 seconds for the socket to expire.
246
Benjamin Peterson48e24782009-03-29 13:02:52 +0000247- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
248
Antoine Pitrou66994e12009-03-29 00:45:26 +0000249- Issue #1174606: Calling read() without arguments of an unbounded file
250 (typically /dev/zero under Unix) could crash the interpreter.
251
Benjamin Peterson59406a92009-03-26 17:10:29 +0000252- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
253 io.BufferedRandom have been deprecated for removal in Python 3.2.
254
Lars Gustäbel42e00912009-03-22 20:34:29 +0000255- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
256 forever on incomplete input. That caused tarfile.open() to hang when used
257 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
258 partial bzip2 compressed data.
259
Mark Dickinson79f52032009-03-17 23:12:51 +0000260- Issue #2110: Add support for thousands separator and 'n' type
261 specifier to Decimal.__format__
262
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000263- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
264 '>' alignment characters.
265
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000266- The error detection code in FileIO.close() could fail to reflect the `errno`
267 value, and report it as -1 instead.
268
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000269- Issue #5016: FileIO.seekable() could return False if the file position
270 was negative when truncated to a C int. Patch by Victor Stinner.
271
Mark Dickinsonae681df2009-03-21 10:26:31 +0000272Extension Modules
273-----------------
274
Benjamin Petersone099b372009-04-04 17:09:35 +0000275- Issue #5391: mmap now deals exclusively with bytes.
276
Mark Dickinsonae681df2009-03-21 10:26:31 +0000277- Issue #5463: In struct module, remove deprecated overflow wrapping
278 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000279 struct.error instead of returning b'\xff\xff\xff\xff'. The
280 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
281 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000282
Benjamin Petersond1735892009-03-07 18:46:21 +0000283
Benjamin Petersona58a6262009-03-07 16:34:40 +0000284What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000285================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000286
Benjamin Petersona58a6262009-03-07 16:34:40 +0000287*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000288
289Core and Builtins
290-----------------
291
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000292- The io module has been reimplemented in C for speed.
293
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000294- Give dict views an informative __repr__.
295
Eric Smith5e5c0db2009-02-20 14:25:03 +0000296- Issue #5247: Improve error message when unknown format codes are
297 used when using str.format() with str, int, and float arguments.
298
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000299- Issue #5249: time.strftime returned malformed string when format string
300 contained non ascii character on windows.
301
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000302- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
303 source has already been decoded into str.
304
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000305- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
306 rotating the object pointer by 4 bits to the right.
307
Mark Dickinson87ec0852009-02-09 17:15:59 +0000308- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
309 it now forces its argument to double before testing for infinity.
310
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000311- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
312 returns a non-number type.
313
Benjamin Peterson87618552009-02-08 15:00:52 +0000314- Issue #5182: Removed memoryview.__str__.
315
Mark Dickinsonc008a172009-02-01 13:59:22 +0000316- Issue #1717: Removed builtin cmp() function, dropped tp_compare
317 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000318 the type definition cmpfunc. The tp_compare slot has been renamed
319 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000320
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000321- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000322 were suppressing all exceptions. These include list() and bytearray().
323
Mark Dickinson1124e712009-01-28 21:25:58 +0000324- Issue #4707: round(x, n) now returns an integer if x is an integer.
325 Previously it returned a float.
326
Antoine Pitroub52ec782009-01-25 16:34:23 +0000327- Issue #4753: By enabling a configure option named '--with-computed-gotos'
328 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
329 evaluation loop is compiled with a new dispatch mechanism which gives
330 speedups of up to 20%, depending on the system, on various benchmarks.
331
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000332- Issue #4874: Most builtin decoders now reject unicode input.
333
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000334- Issue #4842: Don't allow trailing 'L' when constructing an integer
335 from a string.
336
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000337- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
338
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000339- Issue #4838: When a module is deallocated, free the memory backing the
340 optional module state data.
341
Mark Dickinson8055afd2009-01-17 10:04:45 +0000342- Issue #4910: Rename nb_long slot to nb_reserved, and change its
343 type to (void *).
344
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000345- Issue #4935: The overflow checking code in the expandtabs() method common
346 to str, bytes and bytearray could be optimized away by the compiler, letting
347 the interpreter segfault instead of raising an error.
348
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000349- Issue #3720: Fix a crash when an iterator modifies its class and removes its
350 __next__ method.
351
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000352- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
353 function no longer attempt to call the __long__ slot to convert an object
354 to an integer. Only the __int__ and __trunc__ slots are examined.
355
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000356- Issue #4893: Use NT threading on CE.
357
Martin v. Löwisec59d042009-01-12 07:59:10 +0000358- Issue #4915: Port sysmodule to Windows CE.
359
Antoine Pitrouab868312009-01-10 15:40:25 +0000360- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
361 common cases are optimized thanks to a dedicated fast path and a moderate
362 amount of loop unrolling.
363
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000364- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
365 collecting the oldest generation) so that allocating lots of objects without
366 destroying them does not show quadratic performance. Based on a proposal by
367 Martin von Löwis at
368 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
369
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000370- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000371 having been closed (for instance, a read() call could return some
372 previously buffered data). Patch by Dmitry Vasiliev.
373
Antoine Pitrou05608432009-01-09 18:53:14 +0000374- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
375 flag to work properly. Furthermore, when specifying -u, the text stdout
376 and stderr streams have line-by-line buffering enabled (the default being
377 to buffer arbitrary chunks of data).
378
Raymond Hettinger35631532009-01-09 03:58:09 +0000379- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
380 instead of ints (reducing its size from 4 to 8 times thereby reducing
381 Python's overall memory).
382
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000383- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
384 an existing .py counterpart, override the co_filename attributes of all
385 code objects if the original filename is obsolete (which can happen if the
386 file has been renamed, moved, or if it is accessed through different paths).
387 Patch by Ziga Seilnacht and Jean-Paul Calderone.
388
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000389- Issue #4580: Fix slicing of memoryviews when the item size is greater than
390 one byte. Also fixes the meaning of len() so that it returns the number of
391 items, rather than the size in bytes.
392
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000393- Issue #4075: Use OutputDebugStringW in Py_FatalError.
394
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000395- Issue #4747: When the terminal does not use utf-8, executing a script with
396 non-ascii characters in its name could fail with a "SyntaxError: None" error.
397
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000398- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000399 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000400
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000401- Issue #3680: Reference cycles created through a dict, set or deque iterator
402 did not get collected.
403
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000404- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
405 where the tp_hash and tp_dict slots are both NULL.
406
Georg Brandlccc47b62008-12-28 11:44:14 +0000407- Issue #4759: None is now allowed as the first argument of
408 bytearray.translate(). It was always allowed for bytes.translate().
409
Skip Montanaro80072cb2008-12-23 03:51:14 +0000410- Added test case to ensure attempts to read from a file opened for writing
411 fail.
412
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000413- Issue #3106: Speedup some comparisons (str/str and int/int).
414
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000415- Issue #2183: Simplify and optimize bytecode for list, dict and set
416 comprehensions. Original patch for list comprehensions by Neal Norwitz.
417
Antoine Pitrou621601a2008-12-17 23:18:19 +0000418- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
419 print elapsed times, not only when some objects are uncollectable /
420 unreachable. Original patch by Neil Schemenauer.
421
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000422- Issue #3439: Add a bit_length method to int.
423
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000424- Issue #2173: When getting device encoding, check that return value of
425 nl_langinfo is not the empty string. This was causing silent build
426 failures on OS X.
427
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000428- Issue #4597: Fixed several opcodes that weren't always propagating
429 exceptions.
430
431- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000432 context manager returns a value that cannot be converted to a bool.
433
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000434- Issue #4445: Replace "sizeof(PyBytesObject)" with
435 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
436 bytes instances. On a typical machine this saves 3 bytes of memory
437 (on average) per allocation of a bytes instance.
438
Christian Heimesa872de52008-12-05 08:26:55 +0000439- Issue #4533: File read operation was dreadfully slow due to a slowly
440 growing read buffer. Fixed by using the same growth rate algorithm as
441 Python 2.x.
442
Antoine Pitrou5504e892008-12-06 21:27:53 +0000443- Issue #4509: Various issues surrounding resize of bytearray objects to
444 which there are buffer exports (e.g. memoryview instances).
445
Georg Brandlf9734072008-12-07 15:30:06 +0000446- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
447 method on file objects with closefd=False. The file descriptor is still
448 kept open but the file object behaves like a closed file. The ``FileIO``
449 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000450
Antoine Pitroubc420402008-12-07 20:14:49 +0000451- Issue #4569: Interpreter crash when mutating a memoryview with an item size
452 larger than 1.
453
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000454- Issue #4748: Lambda generators no longer return a value.
455
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000456- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
457
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000458Library
459-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000460
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000461- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000462 sysconfig.get_config_vars.
463
Tarek Ziadé23336082009-04-25 12:39:56 +0000464- Issue #4951: Fixed failure in test_httpservers.
465
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000466- Issue #5795: Fixed test_distutils failure on Debian ppc.
467
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000468- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
469
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000470- Issue #5732: added a new command in Distutils: check.
471
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000472- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000473 platforms. Initial patch by Paul Moore.
474
Tarek Ziadéf6370502009-04-05 22:57:21 +0000475- Issue #5095: Added bdist_msi to the list of bdist supported formats.
476 Initial fix by Steven Bethard.
477
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000478- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
479 Initial fix by Wayne Davison.
480
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000481- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000482
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000483- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000484
Brett Cannonf47e84c2009-04-01 16:06:01 +0000485- Issue #1665206 (partially): Move imports in cgitb to the top of the module
486 instead of performing them in functions. Helps prevent import deadlocking in
487 threads.
488
R. David Murraye59482e2009-04-01 03:42:00 +0000489- Issue #2522: locale.format now checks its first argument to ensure it has
490 been passed only one pattern, avoiding mysterious errors where it appeared
491 that it was failing to do localization.
492
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000493- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
494 Brandl.
495
Antoine Pitrou350370c2009-03-14 00:13:13 +0000496- Issue #1222: locale.format() bug when the thousands separator is a space
497 character.
498
Tarek Ziadé516db942009-03-11 12:52:00 +0000499- Issue #5472: Fixed distutils.test_util tear down. Original patch by
500 Tim Golden.
501
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000502- collections.deque() objects now have a read-only attribute called maxlen.
503
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000504- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
505 it is has been populated and properly configured in order to prevent
506 window flashing.
507
Guilherme Polo56f5be52009-03-07 01:54:57 +0000508- Issue #4792: Prevent a segfault in _tkinter by using the
509 guaranteed to be safe interp argument given to the PythonCmd in place of
510 the Tcl interpreter taken from a PythonCmd_ClientData.
511
512- Issue #5193: Guarantee that tkinter.Text.search returns a string.
513
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000514- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
515 Original patch by Akira Kitada.
516
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000517- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
518
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000519- Issue #5385: Fixed mmap crash after resize failure on windows.
520
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000521- Issue #5179: Fixed subprocess handle leak on failure on windows.
522
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000523- PEP 372: Added collections.OrderedDict().
524
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000525- The _asdict() for method for namedtuples now returns an OrderedDict().
526
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000527- configparser now defaults to using an ordered dictionary.
528
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000529- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
530 import guess_extension`` was used.
531
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000532- Issue #1733986: Fixed mmap crash in accessing elements of second map object
533 with same tagname but larger size than first map. (Windows)
534
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000535- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
536 overrun.
537
Tarek Ziadéf0721222009-02-28 10:16:43 +0000538- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
539 bdist_rpm command.
540
541- Issue #5378: added --quiet option to Distutils bdist_rpm command.
542
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000543- Issue #5052: make Distutils compatible with 2.3 again.
544
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000545- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
546 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000547
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000548- Issue #5287: Add exception handling around findCaller() call to help out
549 IronPython.
550
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000551- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
552 The file was resized to wrong size.
553
554- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
555
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000556- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000557 from the package_data and the data_files metadata.
558
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000559- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000560 support.TempdirManager, to avoid writing in the tests directory.
561
Tarek Ziadé68c50952009-02-13 23:04:17 +0000562- Issue #4524: distutils build_script command failed with --with-suffix=3.
563 Initial patch by Amaury Forgeot d'Arc.
564
Tarek Ziadé811d6242009-02-13 22:26:15 +0000565- Issue #2461: added tests for distutils.util
566
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000567- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
568 which inherited from numbers.py which did not have __slots__ defined. The
569 numbers hierarchy now has its own __slots__ declarations.
570
Antoine Pitroub353c122009-02-11 00:39:14 +0000571- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
572 encoding.
573
Thomas Heller465c8022009-02-10 18:59:04 +0000574- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
575 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
576
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000577- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
578 under NT and OS2. Patch by Philip Jenvey.
579
Brett Cannonbefb14f2009-02-10 02:10:16 +0000580- Issue #5128: Make compileall properly inspect bytecode to determine if needs
581 to be recreated. This avoids a timing hole thanks to the old reliance on the
582 ctime of the files involved.
583
Guilherme Polob681df42009-02-09 22:33:59 +0000584- Issue #5122: Synchronize tk load failure check to prevent a potential
585 deadlock.
586
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000587- Issue #1818: collections.namedtuple() now supports a keyword argument
588 'rename' which lets invalid fieldnames be automatically converted to
589 positional names in the form, _1, _2, ...
590
Guilherme Poloae098992009-02-09 16:44:24 +0000591- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
592
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000593- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
594 public documented method ``ZipImporter.get_filename()``.
595
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000596- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
597 the execution of packages by looking for and executing a ``__main__``
598 submodule when a package name is supplied. Initial patch by Andi
599 Vajda.
600
Guilherme Polo491aee22009-02-06 23:16:11 +0000601- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
602 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
603 Tkapp_Call when calling from a thread different than the one that created
604 the Tcl interpreter. Patch by Robert Hancock.
605
Eric Smith0e5b5622009-02-06 01:32:42 +0000606- Issue #4285: Change sys.version_info to be a named tuple. Patch by
607 Ross Light.
608
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000609- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000610 environment/Makefile. Patch by Douglas Greiman.
611
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000612- Issue #1276768: The verbose option was not used in the code of
613 distutils.file_util and distutils.dir_util.
614
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000615- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000616 --enabled-shared activated. Initial patch by Dave Peterson.
617
Guilherme Polo7f423952009-02-02 21:17:09 +0000618- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
619
Raymond Hettinger85602262009-02-03 04:19:10 +0000620- The shelve module now defaults to pickle protocol 3.
621
Brett Cannone61426e2009-01-30 01:31:34 +0000622- Fix a bug in the trace module where a bytes object from co_lnotab had its
623 items being passed through ord().
624
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000625- Issue #2047: shutil.move() could believe that its destination path was
626 inside its source path if it began with the same letters (e.g. "src" vs.
627 "src.new").
628
Guilherme Polo5f238482009-01-28 14:41:10 +0000629- Added the ttk module. See issue #2983: Ttk support for Tkinter.
630
Raymond Hettinger89e12962009-01-26 02:09:03 +0000631- Removed isSequenceType(), isMappingType, and isNumberType() from the
632 operator module; use the abstract base classes instead. Also removed
633 the repeat() function; use mul() instead.
634
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000635- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000636 collections.namedtuple() relied on __name__ being defined.
637
638- Backport importlib from Python 3.1. Only the import_module() function has
639 been backported to help facilitate transitions from 2.7 to 3.1.
640
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000641- Issue #1885: distutils. When running sdist with --formats=tar,gztar
642 the tar file was overriden by the gztar one.
643
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000644- Issue #4863: distutils.mwerkscompiler has been removed.
645
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000646- Added a new itertools functions: combinations_with_replacement()
647 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000648
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000649- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000650 allowed non-integer arguments.
651
Jesse Noller41faa542009-01-25 03:45:53 +0000652- Fix and properly document the multiprocessing module's logging
653 support, expose the internal levels and provide proper usage
654 examples.
655
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000656- Issue #1672332: fix unpickling of subnormal floats, which was
657 producing a ValueError on some platforms.
658
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000659- Issue #3881: Help Tcl to load even when started through the
660 unreadable local symlink to "Program Files" on Vista.
661
Martin v. Löwis59e47792009-01-24 14:10:07 +0000662- Issue #4710: Extract directories properly in the zipfile module;
663 allow adding directories to a zipfile.
664
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000665- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000666 --without-threads argument. When this occurs, _multiprocessing will
667 be disabled, and not compiled.
668
Antoine Pitrou08838b62009-01-21 00:55:13 +0000669- Issue #5008: When a file is opened in append mode with the new IO library,
670 do an explicit seek to the end of file (so that e.g. tell() returns the
671 file size rather than 0). This is consistent with the behaviour of the
672 traditional 2.x file object.
673
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000674- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
675 parameter was set.
676
Mark Dickinson8dd05142009-01-20 20:43:58 +0000677- Issue #4842: Always append a trailing 'L' when pickling longs using
678 pickle protocol 0. When reading, the 'L' is optional.
679
Brett Cannonafccd632009-01-20 02:21:27 +0000680- Add the importlib package.
681
Jesse Noller9a0fc972009-01-18 21:12:58 +0000682- Issue #4301: Patch the logging module to add processName support, remove
683 _check_logger_class from multiprocessing.
684
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000685- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000686 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000687
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000688- Issue #4959: inspect.formatargspec now works for keyword only arguments
689 without defaults.
690
Jesse Noller6214edd2009-01-19 16:23:53 +0000691- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
692 for *nix machines for negative handles and large int handles. Without this check
693 it is possible to segfault the interpreter.
694
Jesse Nollerb0516a62009-01-18 03:11:38 +0000695- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
696 in sharedctypes.py.
697
698- Issue #1225107: inspect.isclass() returned True for instances with a custom
699 __getattr__.
700
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000701- Issue #3826 and #4791: The socket module now closes the underlying socket
702 appropriately when it is being used via socket.makefile() objects
703 rather than delaying the close by waiting for garbage collection to do it.
704
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000705- Issue #1696199: Add collections.Counter() for rapid and convenient
706 counting.
707
Antoine Pitrou308705e2009-01-10 16:22:51 +0000708- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
709
Thomas Heller5e4e4272009-01-08 09:34:20 +0000710- Issue #4867: Fixed a crash in ctypes when passing a string to a
711 function without defining argtypes.
712
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000713- Issue #4272: Add an optional argument to the GzipFile constructor to override
714 the timestamp in the gzip stream. The default value remains the current time.
715 The information can be used by e.g. gunzip when decompressing. Patch by
716 Jacques Frechet.
717
Mark Dickinson315a20a2009-01-04 21:34:18 +0000718- Restore Python 2.3 compatibility for decimal.py.
719
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000720- Issue #3638: Remove functions from _tkinter module level that depend on
721 TkappObject to work with multiple threads.
722
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000723- Issue #4718: Adapt the wsgiref package so that it actually works with
724 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000725 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
726
Raymond Hettinger771ed762009-01-03 19:20:32 +0000727- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
728 to the decimal module.
729
Georg Brandl3a9b0622009-01-03 22:07:57 +0000730- Fractions.from_float() no longer loses precision for integers too big to
731 cast as floats.
732
Mark Dickinsonf9236412009-01-02 23:23:21 +0000733- Issue #4812: add missing underscore prefix to some internal-use-only
734 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
735
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000736- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000737 did unnecessary work in the common case where no key function was specified.
738
Georg Brandlb1441c72009-01-03 22:33:39 +0000739- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
740 the function is not a generator.
741
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000742- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
743 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000744
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000745- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000746 function. Original patch by Thomas Heller.
747
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000748- Issue #3767: Convert Tk object to string in tkColorChooser.
749
Martin v. Löwise354d782008-12-29 16:03:04 +0000750- Issue #3248: Allow placing ScrolledText in a PanedWindow.
751
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000752- Issue #4444: Allow assertRaises() to be used as a context handler, so that
753 the code under test can be written inline if more practical.
754
Georg Brandldb7b6b92009-01-01 15:53:14 +0000755- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
756 works as expected in the interactive environment.
757
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000758- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
759 Gabriel Genellina.
760
Antoine Pitrou180a3362008-12-14 16:36:46 +0000761- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
762 boundary.
763
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000764- Issue #4223: inspect.getsource() will now correctly display source code
765 for packages loaded via zipimport (or any other conformant PEP 302
766 loader). Original patch by Alexander Belopolsky.
767
768- Issue #4201: pdb can now access and display source code loaded via
769 zipimport (or any other conformant PEP 302 loader). Original patch by
770 Alexander Belopolsky.
771
772- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
773 302 conformant loader) will now work correctly in most cases (they
774 are still subject to the constraints that exist for all code running
775 from inside a module loaded via a PEP 302 loader and attempting to
776 perform IO operations based on __file__). Original patch by
777 Alexander Belopolsky.
778
779- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
780 allows backporting to maintenance branches. Original patch by
781 Alexander Belopolsky.
782
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000783- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
784 a non-ASCII letter.
785
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000786- Issue #4616: TarFile.utime(): Restore directory times on Windows.
787
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000788- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
789 codec cannot be found. This is for compatibility with the builtin behavior.
790
Facundo Batista708d5812008-12-11 04:20:07 +0000791- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
792 give correct results in the case where one argument is a quiet NaN
793 and the other is a finite number that requires rounding.
794
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000795- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
796 libs.
797
Georg Brandlf9734072008-12-07 15:30:06 +0000798- Added the subprocess.check_call_output() convenience function to get output
799 from a subprocess on success or raise an exception on error.
800
801- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
802 support unusual filenames (such as those containing semi-colons) in
803 Content-Disposition headers.
804
805- Issue #4384: Added logging integration with warnings module using
806 captureWarnings(). This change includes a NullHandler which does nothing;
807 it will be of use to library developers who want to avoid the "No handlers
808 could be found for logger XXX" message which can appear if the library user
809 doesn't configure logging.
810
811- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
812 exception.
813
Georg Brandleee31162008-12-07 15:15:22 +0000814- Issue #4529: fix the parser module's validation of try-except-finally
815 statements.
816
817- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
818 not a malformed option.
819
820- Added the subprocess.check_output() convenience function to get output
821 from a subprocess on success or raise an exception on error.
822
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000823- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
824 the corresponding tests now pass.
825
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000826- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
827 it was calling the wrong open() function.
828
Fred Drake9a0a65b2008-12-04 19:24:50 +0000829- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
830 support unusual filenames (such as those containing semi-colons) in
831 Content-Disposition headers.
832
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000833- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
834 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
835
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000836- Issue #5104: The socket module now raises OverflowError when 16-bit port and
837 protocol numbers are supplied outside the allowed 0-65536 range on bind()
838 and getservbyport().
839
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000840Tools/Demos
841-----------
842
Antoine Pitrou8a681222009-02-07 17:13:31 +0000843- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
844 and make it 2.6-compatible.
845
Guilherme Poloa7d27972009-01-28 16:06:51 +0000846- Ttk demos added in Demo/tkinter/ttk/
847
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000848- Issue #4677: add two list comprehension tests to pybench.
849
Georg Brandlb1441c72009-01-03 22:33:39 +0000850
851Build
852-----
853
Matthias Klose906785c2009-02-22 23:18:38 +0000854- Link the shared python library with $(MODLIBS).
855
Martin v. Löwis11f72102009-02-10 13:13:30 +0000856- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
857
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000858- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
859
Martin v. Löwise97637d2009-01-11 09:45:11 +0000860- Issue #4895: Use _strdup on Windows CE.
861
Georg Brandlb1441c72009-01-03 22:33:39 +0000862- Issue #4472: "configure --enable-shared" now works on OSX
863
864- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
865
866- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
867
868- Issue #4289: Remove Cancel button from AdvancedDlg.
869
870- Issue #1656675: Register a drop handler for .py* files on Windows.
871
872- Issue #4120: Exclude manifest from extension modules in VS2008.
873
874- Issue #4091: Install pythonxy.dll in system32 again.
875
876- Issue #4018: Disable "for me" installations on Vista.
877
878- Issue #3758: Add ``patchcheck`` build target to .PHONY.
879
880- Issue #4204: Fixed module build errors on FreeBSD 4.
881
882
883C-API
884-----
885
Mark Dickinson21776072009-02-10 16:13:25 +0000886- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
887 for negative arguments. Previously, it raised TypeError.
888
Georg Brandlb1441c72009-01-03 22:33:39 +0000889- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
890
891- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
892 the GIL is released, or owned by another thread.
893
894- Issue #4122: On Windows, fix a compilation error when using the
895 Py_UNICODE_ISSPACE macro in an extension module.
896
897
Mark Dickinsone675f082008-12-11 21:56:00 +0000898Extension Modules
899-----------------
900
Gregory P. Smith365a1862009-02-12 07:35:29 +0000901- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
902 supporting objects as input no matter how it was compiled (built in
903 implementations or external openssl library).
904
Mark Dickinson29500f62009-01-15 15:36:10 +0000905- Issue #4397: Fix occasional test_socket failure on OS X.
906
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000907- Issue #4279: Fix build of parsermodule under Cygwin.
908
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000909- Issue #4751: hashlib now releases the GIL when hashing large buffers
910 (with a hardwired threshold of 2048 bytes), allowing better parallelization
911 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
912
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000913- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
914
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000915- Issue #4738: Each zlib object now has a separate lock, allowing to compress
916 or decompress several streams at once on multi-CPU systems. Also, the GIL
917 is now released when computing the CRC of a large buffer. Patch by ebfe.
918
Georg Brandlb1441c72009-01-03 22:33:39 +0000919- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
920
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000921- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
922
Mark Dickinsone675f082008-12-11 21:56:00 +0000923- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
924 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000925
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000926- Issue #4583: array.array would not always prohibit resizing when a buffer
927 has been exported, resulting in an interpreter crash when accessing the
928 buffer.
929
Martin v. Löwis841edad2008-11-30 10:36:49 +0000930
Jack Diederiche0cbd692009-04-01 04:27:09 +0000931- Issue #5228: Make functools.partial objects can now be pickled.
932
Guilherme Polo9de29af2009-01-28 20:40:48 +0000933Tests
934-----
935
R. David Murraya21e4ca2009-03-31 23:16:50 +0000936- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000937 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000938 from test support, which does the conversion.
939
Guilherme Polo9de29af2009-01-28 20:40:48 +0000940- Issue #5083: New 'gui' resource for regrtest.
941
942
Brett Cannon7317c1e2008-11-25 19:19:17 +0000943Docs
944----
945
Georg Brandl52b92cc2008-05-25 09:43:03 +0000946
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000947**(For information about older versions, consult the HISTORY file.)**