blob: 5b4f0ab48287fb4ce1b23754056a44cee0783d19 [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
Martin v. Löwis011e8422009-05-05 04:43:17 +000015- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
16
R. David Murrayb18500d2009-05-04 22:59:07 +000017- Issue #5890: in subclasses of 'property' the __doc__ attribute was
18 shadowed by classtype's, even if it was None. property now
19 inserts the __doc__ into the subclass instance __dict__.
20
Antoine Pitrou244651a2009-05-04 18:56:13 +000021- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
22 sequences. Patch by Nick Barnes and Victor Stinner.
23
Martin v. Löwisdb12d452009-05-02 18:52:14 +000024- Issue #3672: Reject surrogates in utf-8 codec; add surrogates error handler.
25
Benjamin Petersond2e0c792009-05-01 20:40:59 +000026- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
27 received a new method, detach(). detach() disconnects the underlying stream
28 from the buffer or text IO and returns it.
29
Mark Dickinson33841c32009-05-01 15:37:04 +000030- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
31 floats with absolute value over 1e50. Also remove length
32 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
33 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +000034
Eric Smith58a42242009-04-30 01:00:33 +000035- Issue #1588: Add complex.__format__. For example,
36 format(complex(1, 2./3), '.5') now produces a sensible result.
37
Mark Dickinsond3ca5572009-04-29 18:47:07 +000038- Issue #5864: Fix empty format code formatting for floats so that it
39 never gives more than the requested number of significant digits.
40
Eric Smith6dc46f52009-04-27 20:39:49 +000041- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
42 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
43
Eric Smithcc32a112009-04-26 21:35:14 +000044- Issue #5835: Deprecate PyOS_ascii_formatd.
45
Martin v. Löwis71efeb72009-04-26 01:02:07 +000046- Issue #4971: Fix titlecase for characters that are their own
47 titlecase, but not their own uppercase.
48
Benjamin Peterson193152c2009-04-25 01:08:45 +000049- Issue #5283: Setting __class__ in __del__ caused a segfault.
50
Mark Dickinsonad476da2009-04-23 19:14:16 +000051- Issue #5816: complex(repr(z)) now recovers z exactly, even when
52 z involves nans, infs or negative zeros.
53
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000054- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000055
Mark Dickinsone6a076d2009-04-18 11:48:33 +000056- Issue #1869 (and many duplicates): make round(x, n) correctly
57 rounded for a float x, by using the decimal <-> binary conversions
58 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
59 consistently agrees with format(x, '.2f').
60
Benjamin Petersonae937c02009-04-18 20:54:08 +000061- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
62 some builtin types.
63
Eric Smith0923d1d2009-04-16 20:16:10 +000064- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
65
Eric Smith35e84722009-04-16 20:21:28 +000066- Issue #5515: str.format() type 'n' combined with commas and leading
67 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000068
69- Implement PEP 378, Format Specifier for Thousands Separator, for
70 floats.
71
Mark Dickinson3370cce2009-04-17 22:40:53 +000072- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000073 1e11, not 1e12. This avoids printing 13 significant digits in
74 situations where only 12 of them are correct. Example problem
75 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
76 long time.)
77
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000078- Issue #1580: On most platforms, use a 'short' float repr: for a
79 finite float x, repr(x) now outputs a string based on the shortest
80 sequence of decimal digits that rounds to x. Previous behaviour was
81 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000082 Another minor difference is that the new repr switches to
83 exponential notation at 1e16 instead of the previous 1e17; this
84 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000085
86 There's a new sys attribute sys.float_repr_style, which takes
87 the value 'short' to indicate that we're using short float repr,
88 and 'legacy' if the short float repr isn't available for one
89 reason or another.
90
91 The float repr change involves incorporating David Gay's 'perfect
92 rounding' code into the Python core (it's in Python/dtoa.c). As a
93 secondary consequence, all string-to-float and float-to-string
94 conversions (including all float formatting operations) will be
95 correctly rounded on these platforms.
96
97 See issue 1580 discussions for details of platforms for which
98 this change does not apply.
99
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000100- Issue #5759: float() didn't call __float__ on str subclasses.
101
Georg Brandlabc38772009-04-12 15:51:51 +0000102- The string.maketrans() function is deprecated; there is a new static method
103 maketrans() on the bytes and bytearray classes. This removes confusion about
104 the types string.maketrans() is supposed to work with, and mirrors the
105 methods available on the str class.
106
R. David Murraydc6da8a2009-04-09 22:16:43 +0000107- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
108 its clarity and its speed.
109
Matthias Klose091c7b12009-04-07 13:24:27 +0000110- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
111 to avoid compiler warnings.
112
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000113Installation
114------------
115
116- Issue #5756: Install idle and pydoc with a 3 suffix.
117
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000118Library
119-------
120
Georg Brandleaa84ef2009-05-05 08:14:33 +0000121- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
122 turtle demos in Demo/turtle.
123
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000124- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
125 extracting a file to the root directory.
126
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000127- Issue #5913: os.listdir() should fail for empty path on windows.
128
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000129- Issue #5084: unpickling now interns the attribute names of pickled objects,
130 saving memory and avoiding growth in size of subsequent pickles. Proposal
131 and original patch by Jake McGuire.
132
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000133- The json module now works exclusively with str and not bytes.
134
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000135- Issue #3959: The ipaddr module has been added to the standard library.
136 Contributed by Google.
137
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000138- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
139 error when a named pipe is encountered, rather than blocking infinitely.
140
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000141- Issue #5857: tokenize.tokenize() now returns named tuples.
142
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000143- Issue #4305: ctypes should now build again on mipsel-linux-gnu
144
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000145- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
146 string is already in normalized form, by performing a quick check beforehand.
147 Original patch by Rauli Ruohonen.
148
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000149- Issue #5853: calling a function of the mimetypes module from several threads
150 at once could hit the recursion limit if the mimetypes database hadn't been
151 initialized before.
152
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000153- Issue #5854: Updated __all__ to include some missing names and remove some
154 names which should not be exported.
155
Thomas Heller34596a92009-04-24 20:50:00 +0000156- Issue #3102: All global symbols that the _ctypes extension defines
157 are now prefixed with 'Py' or '_ctypes'.
158
159- Issue #5041: ctypes does now allow pickling wide character.
160
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000161- Issue #5812: For the two-argument form of the Fraction constructor,
162 Fraction(m, n), m and n are permitted to be arbitrary Rational
163 instances.
164
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000165- Issue #5812: Fraction('1e6') is valid: more generally, any string
166 that's valid for float() is now valid for Fraction(), with the
167 exception of strings representing NaNs and infinities.
168
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000169- Issue #5734: BufferedRWPair was poorly tested and had several glaring
170 bugs. Patch by Brian Quinlan.
171
R. David Murray9e94ddf2009-04-13 17:06:33 +0000172- Issue #1161031: fix readwrite select flag handling: POLLPRI now
173 results in a handle_expt_event call, not handle_read_event, and POLLERR
174 and POLLNVAL now call handle_close, not handle_expt_event. Also,
175 dispatcher now has an 'ignore_log_types' attribute for suppressing
176 log messages, which is set to 'warning' by default.
177
Matthias Klosea3d29e82009-04-07 13:13:10 +0000178- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
179 new arguments introduced in 2.5.
180
Walter Dörwald1b08b302009-04-25 14:13:56 +0000181- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
182 makeunicodedata.py and regenerated the Unicode database (This fixes
183 u'\u1d79'.lower() == '\x00').
184
Matthias Klose535336f2009-04-07 13:49:45 +0000185Extension Modules
186-----------------
187
Benjamin Petersone04b6272009-05-04 22:25:21 +0000188- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
189 pwd.
190
Mark Dickinsonea835e72009-04-19 20:40:33 +0000191- Issue #5463: In struct module, remove deprecated float coercion
192 for integer type codes: struct.pack('L', 0.3) should now raise
193 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
194 The version number has been bumped to 0.3.
195
Matthias Klose535336f2009-04-07 13:49:45 +0000196- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
197 using Berkley-DB.
198
Nick Coghlan47384702009-04-22 16:13:36 +0000199Tests
200-----
201
202- Issue #5354: New test support function import_fresh_module() makes
203 it easy to import both normal and optimised versions of modules.
204 test_heapq and test_warnings have been adjusted to use it, tests for
205 other modules with both C and Python implementations in the stdlib
206 can be adjusted to use it over time.
207
Walter Dörwald4ba80132009-04-25 12:48:43 +0000208- Issue #5837: Certain sequences of calls to set() and unset() for
209 support.EnvironmentVarGuard objects restored the environment variables
210 incorrectly on __exit__.
211
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000212
Benjamin Petersond1735892009-03-07 18:46:21 +0000213What's New in Python 3.1 alpha 2?
214=================================
215
Benjamin Peterson88f14352009-04-04 21:06:52 +0000216*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000217
218Core and Builtins
219-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000220
Eric Smith1e1d7d22009-04-03 22:25:33 +0000221- Implement PEP 378, Format Specifier for Thousands Separator, for
222 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000223
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000224- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
225
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000226- Issue #5499: The 'c' code for argument parsing functions now only accepts a
227 byte, and the 'C' code only accepts a unicode character.
228
Georg Brandl406b3d82009-04-11 21:24:37 +0000229- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
230 when hitting the recursion limit under certain circumstances.
231
Brett Cannon0759dd62009-04-01 18:13:07 +0000232- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
233
Georg Brandlab6f2f62009-03-31 04:16:10 +0000234- Fix a segfault when running test_exceptions with coverage, caused by
235 insufficient checks in accessors of Exception.__context__.
236
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000237- Issue #5604: non-ASCII characters in module name passed to
238 imp.find_module() were converted to UTF-8 while the path is
239 converted to the default filesystem encoding, causing nonsense.
240
Benjamin Peterson09832742009-03-26 17:15:46 +0000241- Issue #5126: str.isprintable() returned False for space characters.
242
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000243- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
244 the end sys.path, for compatibility with the system install of Python.
245
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000246- Issue #4688: Add a heuristic so that tuples and dicts containing only
247 untrackable objects are not tracked by the garbage collector. This can
248 reduce the size of collections and therefore the garbage collection overhead
249 on long-running programs, depending on their particular use of datatypes.
250
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000251- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
252 improve its performance. Long divisions and remainder operations
253 are now between 50% and 150% faster.
254
Mark Dickinsonbd792642009-03-18 20:06:12 +0000255- Issue #4258: Make it possible to use base 2**30 instead of base
256 2**15 for the internal representation of integers, for performance
257 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
258 --enable-big-digits option to configure, which overrides the
259 default. Add sys.int_info structseq to provide information about
260 the internal format.
261
Mark Dickinson081dfee2009-03-18 14:47:41 +0000262- Issue #4474: PyUnicode_FromWideChar now converts characters outside
263 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
264 and sizeof(Py_UNICODE) == 2.
265
Eric Smith8ec90442009-03-14 12:29:34 +0000266- Issue #5237: Allow auto-numbered fields in str.format(). For
267 example: '{} {}'.format(1, 2) == '1 2'.
268
Antoine Pitrou652e7072009-03-13 19:25:20 +0000269- Issue #5392: when a very low recursion limit was set, the interpreter would
270 abort with a fatal error after the recursion limit was hit twice.
271
Matthias Klose042f1332009-04-04 14:32:42 +0000272- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
273 short file names.
274
Benjamin Petersond1735892009-03-07 18:46:21 +0000275Library
276-------
277
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000278- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000279 mailbox.MH.get_message().
280
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000281- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
282 error substitutions from non-strict codec error callbacks in
283 incrementalencoder and StreamWriter.
284
Georg Brandl33c28812009-04-01 23:07:29 +0000285- Issue #5656: Fix the coverage reporting when running the test suite with
286 the -T argument.
287
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000288- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
289
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000290- Issue #5624: Fix the _winreg module name still used in several modules.
291
Benjamin Petersona1b49012009-03-31 23:11:32 +0000292- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
293
Jesse Nollera9314042009-03-31 22:36:44 +0000294- Issue #5619: Multiprocessing children disobey the debug flag and causes
295 popups on windows buildbots. Patch applied to work around this issue.
296
Jesse Noller32d68c22009-03-31 18:48:42 +0000297- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
298
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000299- Issue #5387: Fixed mmap.move crash by integer overflow.
300
Jesse Nollerf8d00852009-03-31 03:25:07 +0000301- Issue #5261: Patch multiprocessing's semaphore.c to support context
302 manager use: "with multiprocessing.Lock()" works now.
303
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000304- Issue #5236: Change time.strptime() to only take strings. Didn't work with
305 bytes already but the failure was non-obvious.
306
Jesse Noller7af4ef82009-03-30 16:47:15 +0000307- Issue #5177: Multiprocessing's SocketListener class now uses
308 socket.SO_REUSEADDR on all connections so that the user no longer needs
309 to wait 120 seconds for the socket to expire.
310
Benjamin Peterson48e24782009-03-29 13:02:52 +0000311- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
312
Antoine Pitrou66994e12009-03-29 00:45:26 +0000313- Issue #1174606: Calling read() without arguments of an unbounded file
314 (typically /dev/zero under Unix) could crash the interpreter.
315
Benjamin Peterson59406a92009-03-26 17:10:29 +0000316- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
317 io.BufferedRandom have been deprecated for removal in Python 3.2.
318
Lars Gustäbel42e00912009-03-22 20:34:29 +0000319- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
320 forever on incomplete input. That caused tarfile.open() to hang when used
321 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
322 partial bzip2 compressed data.
323
Mark Dickinson79f52032009-03-17 23:12:51 +0000324- Issue #2110: Add support for thousands separator and 'n' type
325 specifier to Decimal.__format__
326
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000327- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
328 '>' alignment characters.
329
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000330- The error detection code in FileIO.close() could fail to reflect the `errno`
331 value, and report it as -1 instead.
332
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000333- Issue #5016: FileIO.seekable() could return False if the file position
334 was negative when truncated to a C int. Patch by Victor Stinner.
335
Mark Dickinsonae681df2009-03-21 10:26:31 +0000336Extension Modules
337-----------------
338
Benjamin Petersone099b372009-04-04 17:09:35 +0000339- Issue #5391: mmap now deals exclusively with bytes.
340
Mark Dickinsonae681df2009-03-21 10:26:31 +0000341- Issue #5463: In struct module, remove deprecated overflow wrapping
342 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000343 struct.error instead of returning b'\xff\xff\xff\xff'. The
344 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
345 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000346
Benjamin Petersond1735892009-03-07 18:46:21 +0000347
Benjamin Petersona58a6262009-03-07 16:34:40 +0000348What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000349================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000350
Benjamin Petersona58a6262009-03-07 16:34:40 +0000351*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000352
353Core and Builtins
354-----------------
355
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000356- The io module has been reimplemented in C for speed.
357
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000358- Give dict views an informative __repr__.
359
Eric Smith5e5c0db2009-02-20 14:25:03 +0000360- Issue #5247: Improve error message when unknown format codes are
361 used when using str.format() with str, int, and float arguments.
362
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000363- Issue #5249: time.strftime returned malformed string when format string
364 contained non ascii character on windows.
365
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000366- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
367 source has already been decoded into str.
368
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000369- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
370 rotating the object pointer by 4 bits to the right.
371
Mark Dickinson87ec0852009-02-09 17:15:59 +0000372- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
373 it now forces its argument to double before testing for infinity.
374
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000375- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
376 returns a non-number type.
377
Benjamin Peterson87618552009-02-08 15:00:52 +0000378- Issue #5182: Removed memoryview.__str__.
379
Mark Dickinsonc008a172009-02-01 13:59:22 +0000380- Issue #1717: Removed builtin cmp() function, dropped tp_compare
381 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000382 the type definition cmpfunc. The tp_compare slot has been renamed
383 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000384
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000385- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000386 were suppressing all exceptions. These include list() and bytearray().
387
Mark Dickinson1124e712009-01-28 21:25:58 +0000388- Issue #4707: round(x, n) now returns an integer if x is an integer.
389 Previously it returned a float.
390
Antoine Pitroub52ec782009-01-25 16:34:23 +0000391- Issue #4753: By enabling a configure option named '--with-computed-gotos'
392 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
393 evaluation loop is compiled with a new dispatch mechanism which gives
394 speedups of up to 20%, depending on the system, on various benchmarks.
395
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000396- Issue #4874: Most builtin decoders now reject unicode input.
397
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000398- Issue #4842: Don't allow trailing 'L' when constructing an integer
399 from a string.
400
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000401- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
402
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000403- Issue #4838: When a module is deallocated, free the memory backing the
404 optional module state data.
405
Mark Dickinson8055afd2009-01-17 10:04:45 +0000406- Issue #4910: Rename nb_long slot to nb_reserved, and change its
407 type to (void *).
408
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000409- Issue #4935: The overflow checking code in the expandtabs() method common
410 to str, bytes and bytearray could be optimized away by the compiler, letting
411 the interpreter segfault instead of raising an error.
412
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000413- Issue #3720: Fix a crash when an iterator modifies its class and removes its
414 __next__ method.
415
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000416- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
417 function no longer attempt to call the __long__ slot to convert an object
418 to an integer. Only the __int__ and __trunc__ slots are examined.
419
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000420- Issue #4893: Use NT threading on CE.
421
Martin v. Löwisec59d042009-01-12 07:59:10 +0000422- Issue #4915: Port sysmodule to Windows CE.
423
Antoine Pitrouab868312009-01-10 15:40:25 +0000424- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
425 common cases are optimized thanks to a dedicated fast path and a moderate
426 amount of loop unrolling.
427
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000428- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
429 collecting the oldest generation) so that allocating lots of objects without
430 destroying them does not show quadratic performance. Based on a proposal by
431 Martin von Löwis at
432 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
433
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000434- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000435 having been closed (for instance, a read() call could return some
436 previously buffered data). Patch by Dmitry Vasiliev.
437
Antoine Pitrou05608432009-01-09 18:53:14 +0000438- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
439 flag to work properly. Furthermore, when specifying -u, the text stdout
440 and stderr streams have line-by-line buffering enabled (the default being
441 to buffer arbitrary chunks of data).
442
Raymond Hettinger35631532009-01-09 03:58:09 +0000443- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
444 instead of ints (reducing its size from 4 to 8 times thereby reducing
445 Python's overall memory).
446
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000447- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
448 an existing .py counterpart, override the co_filename attributes of all
449 code objects if the original filename is obsolete (which can happen if the
450 file has been renamed, moved, or if it is accessed through different paths).
451 Patch by Ziga Seilnacht and Jean-Paul Calderone.
452
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000453- Issue #4580: Fix slicing of memoryviews when the item size is greater than
454 one byte. Also fixes the meaning of len() so that it returns the number of
455 items, rather than the size in bytes.
456
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000457- Issue #4075: Use OutputDebugStringW in Py_FatalError.
458
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000459- Issue #4747: When the terminal does not use utf-8, executing a script with
460 non-ascii characters in its name could fail with a "SyntaxError: None" error.
461
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000462- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000463 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000464
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000465- Issue #3680: Reference cycles created through a dict, set or deque iterator
466 did not get collected.
467
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000468- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
469 where the tp_hash and tp_dict slots are both NULL.
470
Georg Brandlccc47b62008-12-28 11:44:14 +0000471- Issue #4759: None is now allowed as the first argument of
472 bytearray.translate(). It was always allowed for bytes.translate().
473
Skip Montanaro80072cb2008-12-23 03:51:14 +0000474- Added test case to ensure attempts to read from a file opened for writing
475 fail.
476
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000477- Issue #3106: Speedup some comparisons (str/str and int/int).
478
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000479- Issue #2183: Simplify and optimize bytecode for list, dict and set
480 comprehensions. Original patch for list comprehensions by Neal Norwitz.
481
Antoine Pitrou621601a2008-12-17 23:18:19 +0000482- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
483 print elapsed times, not only when some objects are uncollectable /
484 unreachable. Original patch by Neil Schemenauer.
485
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000486- Issue #3439: Add a bit_length method to int.
487
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000488- Issue #2173: When getting device encoding, check that return value of
489 nl_langinfo is not the empty string. This was causing silent build
490 failures on OS X.
491
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000492- Issue #4597: Fixed several opcodes that weren't always propagating
493 exceptions.
494
495- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000496 context manager returns a value that cannot be converted to a bool.
497
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000498- Issue #4445: Replace "sizeof(PyBytesObject)" with
499 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
500 bytes instances. On a typical machine this saves 3 bytes of memory
501 (on average) per allocation of a bytes instance.
502
Christian Heimesa872de52008-12-05 08:26:55 +0000503- Issue #4533: File read operation was dreadfully slow due to a slowly
504 growing read buffer. Fixed by using the same growth rate algorithm as
505 Python 2.x.
506
Antoine Pitrou5504e892008-12-06 21:27:53 +0000507- Issue #4509: Various issues surrounding resize of bytearray objects to
508 which there are buffer exports (e.g. memoryview instances).
509
Georg Brandlf9734072008-12-07 15:30:06 +0000510- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
511 method on file objects with closefd=False. The file descriptor is still
512 kept open but the file object behaves like a closed file. The ``FileIO``
513 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000514
Antoine Pitroubc420402008-12-07 20:14:49 +0000515- Issue #4569: Interpreter crash when mutating a memoryview with an item size
516 larger than 1.
517
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000518- Issue #4748: Lambda generators no longer return a value.
519
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000520- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
521
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000522- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
523 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
524 step. This avoids problems with counting UTF-8 bytes that ignores the effect
525 of using the replace error handler in PyUnicode_DecodeUTF8().
526
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000527Library
528-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000529
R. David Murrayb507d2e2009-04-29 15:34:32 +0000530- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
531
Tarek Ziadé81623822009-04-29 08:07:44 +0000532- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
533 anymore.
534
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000535- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000536 sysconfig.get_config_vars.
537
Tarek Ziadé23336082009-04-25 12:39:56 +0000538- Issue #4951: Fixed failure in test_httpservers.
539
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000540- Issue #5795: Fixed test_distutils failure on Debian ppc.
541
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000542- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
543
Georg Brandl1f9fa312009-04-27 16:42:58 +0000544- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
545 a value in SafeConfigParser.
546
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000547- Issue #5732: added a new command in Distutils: check.
548
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000549- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000550 platforms. Initial patch by Paul Moore.
551
Tarek Ziadéf6370502009-04-05 22:57:21 +0000552- Issue #5095: Added bdist_msi to the list of bdist supported formats.
553 Initial fix by Steven Bethard.
554
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000555- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
556 Initial fix by Wayne Davison.
557
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000558- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000559
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000560- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000561
Brett Cannonf47e84c2009-04-01 16:06:01 +0000562- Issue #1665206 (partially): Move imports in cgitb to the top of the module
563 instead of performing them in functions. Helps prevent import deadlocking in
564 threads.
565
R. David Murraye59482e2009-04-01 03:42:00 +0000566- Issue #2522: locale.format now checks its first argument to ensure it has
567 been passed only one pattern, avoiding mysterious errors where it appeared
568 that it was failing to do localization.
569
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000570- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
571 Brandl.
572
Antoine Pitrou350370c2009-03-14 00:13:13 +0000573- Issue #1222: locale.format() bug when the thousands separator is a space
574 character.
575
Tarek Ziadé516db942009-03-11 12:52:00 +0000576- Issue #5472: Fixed distutils.test_util tear down. Original patch by
577 Tim Golden.
578
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000579- collections.deque() objects now have a read-only attribute called maxlen.
580
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000581- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
582 it is has been populated and properly configured in order to prevent
583 window flashing.
584
Guilherme Polo56f5be52009-03-07 01:54:57 +0000585- Issue #4792: Prevent a segfault in _tkinter by using the
586 guaranteed to be safe interp argument given to the PythonCmd in place of
587 the Tcl interpreter taken from a PythonCmd_ClientData.
588
589- Issue #5193: Guarantee that tkinter.Text.search returns a string.
590
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000591- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
592 Original patch by Akira Kitada.
593
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000594- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
595
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000596- Issue #5385: Fixed mmap crash after resize failure on windows.
597
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000598- Issue #5179: Fixed subprocess handle leak on failure on windows.
599
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000600- PEP 372: Added collections.OrderedDict().
601
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000602- The _asdict() for method for namedtuples now returns an OrderedDict().
603
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000604- configparser now defaults to using an ordered dictionary.
605
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000606- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
607 import guess_extension`` was used.
608
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000609- Issue #1733986: Fixed mmap crash in accessing elements of second map object
610 with same tagname but larger size than first map. (Windows)
611
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000612- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
613 overrun.
614
Tarek Ziadéf0721222009-02-28 10:16:43 +0000615- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
616 bdist_rpm command.
617
618- Issue #5378: added --quiet option to Distutils bdist_rpm command.
619
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000620- Issue #5052: make Distutils compatible with 2.3 again.
621
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000622- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
623 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000624
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000625- Issue #5287: Add exception handling around findCaller() call to help out
626 IronPython.
627
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000628- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
629 The file was resized to wrong size.
630
631- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
632
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000633- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000634 from the package_data and the data_files metadata.
635
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000636- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000637 support.TempdirManager, to avoid writing in the tests directory.
638
Tarek Ziadé68c50952009-02-13 23:04:17 +0000639- Issue #4524: distutils build_script command failed with --with-suffix=3.
640 Initial patch by Amaury Forgeot d'Arc.
641
Tarek Ziadé811d6242009-02-13 22:26:15 +0000642- Issue #2461: added tests for distutils.util
643
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000644- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
645 which inherited from numbers.py which did not have __slots__ defined. The
646 numbers hierarchy now has its own __slots__ declarations.
647
Antoine Pitroub353c122009-02-11 00:39:14 +0000648- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
649 encoding.
650
Thomas Heller465c8022009-02-10 18:59:04 +0000651- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
652 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
653
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000654- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
655 under NT and OS2. Patch by Philip Jenvey.
656
Brett Cannonbefb14f2009-02-10 02:10:16 +0000657- Issue #5128: Make compileall properly inspect bytecode to determine if needs
658 to be recreated. This avoids a timing hole thanks to the old reliance on the
659 ctime of the files involved.
660
Guilherme Polob681df42009-02-09 22:33:59 +0000661- Issue #5122: Synchronize tk load failure check to prevent a potential
662 deadlock.
663
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000664- Issue #1818: collections.namedtuple() now supports a keyword argument
665 'rename' which lets invalid fieldnames be automatically converted to
666 positional names in the form, _1, _2, ...
667
Guilherme Poloae098992009-02-09 16:44:24 +0000668- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
669
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000670- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
671 public documented method ``ZipImporter.get_filename()``.
672
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000673- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
674 the execution of packages by looking for and executing a ``__main__``
675 submodule when a package name is supplied. Initial patch by Andi
676 Vajda.
677
Guilherme Polo491aee22009-02-06 23:16:11 +0000678- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
679 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
680 Tkapp_Call when calling from a thread different than the one that created
681 the Tcl interpreter. Patch by Robert Hancock.
682
Eric Smith0e5b5622009-02-06 01:32:42 +0000683- Issue #4285: Change sys.version_info to be a named tuple. Patch by
684 Ross Light.
685
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000686- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000687 environment/Makefile. Patch by Douglas Greiman.
688
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000689- Issue #1276768: The verbose option was not used in the code of
690 distutils.file_util and distutils.dir_util.
691
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000692- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000693 --enabled-shared activated. Initial patch by Dave Peterson.
694
Guilherme Polo7f423952009-02-02 21:17:09 +0000695- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
696
Raymond Hettinger85602262009-02-03 04:19:10 +0000697- The shelve module now defaults to pickle protocol 3.
698
Brett Cannone61426e2009-01-30 01:31:34 +0000699- Fix a bug in the trace module where a bytes object from co_lnotab had its
700 items being passed through ord().
701
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000702- Issue #2047: shutil.move() could believe that its destination path was
703 inside its source path if it began with the same letters (e.g. "src" vs.
704 "src.new").
705
Guilherme Polo5f238482009-01-28 14:41:10 +0000706- Added the ttk module. See issue #2983: Ttk support for Tkinter.
707
Raymond Hettinger89e12962009-01-26 02:09:03 +0000708- Removed isSequenceType(), isMappingType, and isNumberType() from the
709 operator module; use the abstract base classes instead. Also removed
710 the repeat() function; use mul() instead.
711
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000712- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000713 collections.namedtuple() relied on __name__ being defined.
714
715- Backport importlib from Python 3.1. Only the import_module() function has
716 been backported to help facilitate transitions from 2.7 to 3.1.
717
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000718- Issue #1885: distutils. When running sdist with --formats=tar,gztar
719 the tar file was overriden by the gztar one.
720
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000721- Issue #4863: distutils.mwerkscompiler has been removed.
722
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000723- Added a new itertools functions: combinations_with_replacement()
724 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000725
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000726- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000727 allowed non-integer arguments.
728
Jesse Noller41faa542009-01-25 03:45:53 +0000729- Fix and properly document the multiprocessing module's logging
730 support, expose the internal levels and provide proper usage
731 examples.
732
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000733- Issue #1672332: fix unpickling of subnormal floats, which was
734 producing a ValueError on some platforms.
735
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000736- Issue #3881: Help Tcl to load even when started through the
737 unreadable local symlink to "Program Files" on Vista.
738
Martin v. Löwis59e47792009-01-24 14:10:07 +0000739- Issue #4710: Extract directories properly in the zipfile module;
740 allow adding directories to a zipfile.
741
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000742- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000743 --without-threads argument. When this occurs, _multiprocessing will
744 be disabled, and not compiled.
745
Antoine Pitrou08838b62009-01-21 00:55:13 +0000746- Issue #5008: When a file is opened in append mode with the new IO library,
747 do an explicit seek to the end of file (so that e.g. tell() returns the
748 file size rather than 0). This is consistent with the behaviour of the
749 traditional 2.x file object.
750
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000751- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
752 parameter was set.
753
Mark Dickinson8dd05142009-01-20 20:43:58 +0000754- Issue #4842: Always append a trailing 'L' when pickling longs using
755 pickle protocol 0. When reading, the 'L' is optional.
756
Brett Cannonafccd632009-01-20 02:21:27 +0000757- Add the importlib package.
758
Jesse Noller9a0fc972009-01-18 21:12:58 +0000759- Issue #4301: Patch the logging module to add processName support, remove
760 _check_logger_class from multiprocessing.
761
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000762- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000763 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000764
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000765- Issue #4959: inspect.formatargspec now works for keyword only arguments
766 without defaults.
767
Jesse Noller6214edd2009-01-19 16:23:53 +0000768- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
769 for *nix machines for negative handles and large int handles. Without this check
770 it is possible to segfault the interpreter.
771
Jesse Nollerb0516a62009-01-18 03:11:38 +0000772- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
773 in sharedctypes.py.
774
775- Issue #1225107: inspect.isclass() returned True for instances with a custom
776 __getattr__.
777
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000778- Issue #3826 and #4791: The socket module now closes the underlying socket
779 appropriately when it is being used via socket.makefile() objects
780 rather than delaying the close by waiting for garbage collection to do it.
781
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000782- Issue #1696199: Add collections.Counter() for rapid and convenient
783 counting.
784
Antoine Pitrou308705e2009-01-10 16:22:51 +0000785- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
786
Thomas Heller5e4e4272009-01-08 09:34:20 +0000787- Issue #4867: Fixed a crash in ctypes when passing a string to a
788 function without defining argtypes.
789
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000790- Issue #4272: Add an optional argument to the GzipFile constructor to override
791 the timestamp in the gzip stream. The default value remains the current time.
792 The information can be used by e.g. gunzip when decompressing. Patch by
793 Jacques Frechet.
794
Mark Dickinson315a20a2009-01-04 21:34:18 +0000795- Restore Python 2.3 compatibility for decimal.py.
796
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000797- Issue #3638: Remove functions from _tkinter module level that depend on
798 TkappObject to work with multiple threads.
799
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000800- Issue #4718: Adapt the wsgiref package so that it actually works with
801 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000802 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
803
Raymond Hettinger771ed762009-01-03 19:20:32 +0000804- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
805 to the decimal module.
806
Georg Brandl3a9b0622009-01-03 22:07:57 +0000807- Fractions.from_float() no longer loses precision for integers too big to
808 cast as floats.
809
Mark Dickinsonf9236412009-01-02 23:23:21 +0000810- Issue #4812: add missing underscore prefix to some internal-use-only
811 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
812
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000813- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000814 did unnecessary work in the common case where no key function was specified.
815
Georg Brandlb1441c72009-01-03 22:33:39 +0000816- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
817 the function is not a generator.
818
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000819- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
820 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000821
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000822- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000823 function. Original patch by Thomas Heller.
824
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000825- Issue #3767: Convert Tk object to string in tkColorChooser.
826
Martin v. Löwise354d782008-12-29 16:03:04 +0000827- Issue #3248: Allow placing ScrolledText in a PanedWindow.
828
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000829- Issue #4444: Allow assertRaises() to be used as a context handler, so that
830 the code under test can be written inline if more practical.
831
Georg Brandldb7b6b92009-01-01 15:53:14 +0000832- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
833 works as expected in the interactive environment.
834
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000835- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
836 Gabriel Genellina.
837
Antoine Pitrou180a3362008-12-14 16:36:46 +0000838- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
839 boundary.
840
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000841- Issue #4223: inspect.getsource() will now correctly display source code
842 for packages loaded via zipimport (or any other conformant PEP 302
843 loader). Original patch by Alexander Belopolsky.
844
845- Issue #4201: pdb can now access and display source code loaded via
846 zipimport (or any other conformant PEP 302 loader). Original patch by
847 Alexander Belopolsky.
848
849- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
850 302 conformant loader) will now work correctly in most cases (they
851 are still subject to the constraints that exist for all code running
852 from inside a module loaded via a PEP 302 loader and attempting to
853 perform IO operations based on __file__). Original patch by
854 Alexander Belopolsky.
855
856- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
857 allows backporting to maintenance branches. Original patch by
858 Alexander Belopolsky.
859
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000860- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
861 a non-ASCII letter.
862
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000863- Issue #4616: TarFile.utime(): Restore directory times on Windows.
864
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000865- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
866 codec cannot be found. This is for compatibility with the builtin behavior.
867
Facundo Batista708d5812008-12-11 04:20:07 +0000868- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
869 give correct results in the case where one argument is a quiet NaN
870 and the other is a finite number that requires rounding.
871
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000872- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
873 libs.
874
Georg Brandlf9734072008-12-07 15:30:06 +0000875- Added the subprocess.check_call_output() convenience function to get output
876 from a subprocess on success or raise an exception on error.
877
878- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
879 support unusual filenames (such as those containing semi-colons) in
880 Content-Disposition headers.
881
882- Issue #4384: Added logging integration with warnings module using
883 captureWarnings(). This change includes a NullHandler which does nothing;
884 it will be of use to library developers who want to avoid the "No handlers
885 could be found for logger XXX" message which can appear if the library user
886 doesn't configure logging.
887
888- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
889 exception.
890
Georg Brandleee31162008-12-07 15:15:22 +0000891- Issue #4529: fix the parser module's validation of try-except-finally
892 statements.
893
894- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
895 not a malformed option.
896
897- Added the subprocess.check_output() convenience function to get output
898 from a subprocess on success or raise an exception on error.
899
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000900- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
901 the corresponding tests now pass.
902
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000903- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
904 it was calling the wrong open() function.
905
Fred Drake9a0a65b2008-12-04 19:24:50 +0000906- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
907 support unusual filenames (such as those containing semi-colons) in
908 Content-Disposition headers.
909
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000910- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
911 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
912
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000913- Issue #5104: The socket module now raises OverflowError when 16-bit port and
914 protocol numbers are supplied outside the allowed 0-65536 range on bind()
915 and getservbyport().
916
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000917Tools/Demos
918-----------
919
Antoine Pitrou8a681222009-02-07 17:13:31 +0000920- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
921 and make it 2.6-compatible.
922
Guilherme Poloa7d27972009-01-28 16:06:51 +0000923- Ttk demos added in Demo/tkinter/ttk/
924
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000925- Issue #4677: add two list comprehension tests to pybench.
926
Georg Brandlb1441c72009-01-03 22:33:39 +0000927
928Build
929-----
930
Antoine Pitrou8966c992009-05-01 21:18:27 +0000931- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
932 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
933
Matthias Klose55708cc2009-04-30 08:06:49 +0000934- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
935 the order that backends for the dbm extension are checked.
936
Matthias Klose906785c2009-02-22 23:18:38 +0000937- Link the shared python library with $(MODLIBS).
938
Martin v. Löwis11f72102009-02-10 13:13:30 +0000939- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
940
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000941- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
942
Martin v. Löwise97637d2009-01-11 09:45:11 +0000943- Issue #4895: Use _strdup on Windows CE.
944
Georg Brandlb1441c72009-01-03 22:33:39 +0000945- Issue #4472: "configure --enable-shared" now works on OSX
946
947- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
948
949- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
950
951- Issue #4289: Remove Cancel button from AdvancedDlg.
952
953- Issue #1656675: Register a drop handler for .py* files on Windows.
954
955- Issue #4120: Exclude manifest from extension modules in VS2008.
956
957- Issue #4091: Install pythonxy.dll in system32 again.
958
959- Issue #4018: Disable "for me" installations on Vista.
960
961- Issue #3758: Add ``patchcheck`` build target to .PHONY.
962
963- Issue #4204: Fixed module build errors on FreeBSD 4.
964
965
966C-API
967-----
968
Mark Dickinson21776072009-02-10 16:13:25 +0000969- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
970 for negative arguments. Previously, it raised TypeError.
971
Georg Brandlb1441c72009-01-03 22:33:39 +0000972- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
973
974- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
975 the GIL is released, or owned by another thread.
976
977- Issue #4122: On Windows, fix a compilation error when using the
978 Py_UNICODE_ISSPACE macro in an extension module.
979
980
Mark Dickinsone675f082008-12-11 21:56:00 +0000981Extension Modules
982-----------------
983
Gregory P. Smith365a1862009-02-12 07:35:29 +0000984- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
985 supporting objects as input no matter how it was compiled (built in
986 implementations or external openssl library).
987
Mark Dickinson29500f62009-01-15 15:36:10 +0000988- Issue #4397: Fix occasional test_socket failure on OS X.
989
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000990- Issue #4279: Fix build of parsermodule under Cygwin.
991
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000992- Issue #4751: hashlib now releases the GIL when hashing large buffers
993 (with a hardwired threshold of 2048 bytes), allowing better parallelization
994 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
995
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000996- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
997
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000998- Issue #4738: Each zlib object now has a separate lock, allowing to compress
999 or decompress several streams at once on multi-CPU systems. Also, the GIL
1000 is now released when computing the CRC of a large buffer. Patch by ebfe.
1001
Georg Brandlb1441c72009-01-03 22:33:39 +00001002- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1003
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001004- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1005
Mark Dickinsone675f082008-12-11 21:56:00 +00001006- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1007 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001008
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001009- Issue #4583: array.array would not always prohibit resizing when a buffer
1010 has been exported, resulting in an interpreter crash when accessing the
1011 buffer.
1012
Martin v. Löwis841edad2008-11-30 10:36:49 +00001013
Jack Diederiche0cbd692009-04-01 04:27:09 +00001014- Issue #5228: Make functools.partial objects can now be pickled.
1015
Guilherme Polo9de29af2009-01-28 20:40:48 +00001016Tests
1017-----
1018
R. David Murraya21e4ca2009-03-31 23:16:50 +00001019- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001020 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001021 from test support, which does the conversion.
1022
Guilherme Polo9de29af2009-01-28 20:40:48 +00001023- Issue #5083: New 'gui' resource for regrtest.
1024
1025
Brett Cannon7317c1e2008-11-25 19:19:17 +00001026Docs
1027----
1028
Georg Brandl52b92cc2008-05-25 09:43:03 +00001029
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001030**(For information about older versions, consult the HISTORY file.)**