blob: 7d3a2370328633733c723cf3dc29d3ead2e97e8c [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
Mark Dickinson4eb88b32009-05-11 16:41:34 +00007What's New in Python 3.1 release candidate 1?
8=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +00009
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Eric Smith41669ca2009-05-23 14:23:22 +000015- Issue #6089: Fixed str.format with certain invalid field specifiers
16 that would raise SystemError.
17
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +000018- Added support for multiple context managers in the same with-statement.
19 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +000020
Mark Dickinson6b1e43b2009-05-20 18:41:04 +000021- Issue #5829: complex("1e500") no longer raises OverflowError. This
22 makes it consistent with float("1e500") and interpretation of real
23 and imaginary literals.
24
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +000025- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
26
R. David Murraydd226ea2009-05-13 12:27:21 +000027- Issue #5994: the marshal module now has docstrings.
28
Mark Dickinsond1ec8b22009-05-11 15:45:15 +000029- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
30 (1) inf and nan strings with trailing whitespace were incorrectly
31 rejected; (2) parsing of strings representing infinities and nans
32 was locale aware; and (3) the interpretation of fromhex('-nan')
33 didn't match that of float('-nan').
34
Benjamin Petersonaccdca52009-05-06 23:26:59 +000035Library
36-------
37
R. David Murrayfb123912009-05-28 18:19:00 +000038- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
39
R. David Murray1f1b9d32009-05-27 20:56:59 +000040- Issue #6121: pydoc now ignores leading and trailing spaces in the
41 argument to the 'help' function.
42
Georg Brandlfaf41492009-05-26 18:31:11 +000043- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
44 arguments for strings with a space in them.
45
Raymond Hettinger089ba7f2009-05-27 00:38:24 +000046- collections.namedtuple() was not working with the following field
47 names: cls, self, tuple, itemgetter, and property.
48
Benjamin Peterson14a3dd72009-05-25 00:51:58 +000049- In unittest, using a skipping decorator on a class is now equivalent to
50 skipping every test on the class. The ClassTestSuite class has been removed.
51
Martin v. Löwis70ccd162009-05-24 19:47:22 +000052- Issue #6050: Don't fail extracting a directory from a zipfile if
53 the directory already exists.
54
Antoine Pitrou61f77b52009-05-24 15:46:13 +000055- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
56 than an int, which makes some operations possible under 64-bit Linux (e.g.
57 DN_MULTISHOT with F_NOTIFY).
58
Antoine Pitrou716c4442009-05-23 19:04:03 +000059- Issue #5761: Add the name of the underlying file to the repr() of various
60 IO objects.
61
R. David Murraycaa27b72009-05-23 18:49:56 +000062- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
63 by Musashi Tamura, tests by Marcin Bachry.
64
Antoine Pitrouc3ee1662009-05-23 16:02:33 +000065- Issue #1983: Fix functions taking or returning a process identifier to use
66 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
67 a process identifier type wider than the standard C integer type.
68
R. David Murray87e20742009-05-23 01:30:26 +000069- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
70 Patch by Farhan Ahmad, test by Marcin Bachry.
71
Antoine Pitrou6e610062009-05-15 17:04:50 +000072- Issue #2116: Weak references and weak dictionaries now support copy()ing and
73 deepcopy()ing.
74
Antoine Pitrouc1d09362009-05-15 12:15:51 +000075- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
76
Antoine Pitrou37d1c182009-05-14 21:54:00 +000077- Issue #5918: Fix a crash in the parser module.
78
Antoine Pitrou2ca24f02009-05-14 21:30:46 +000079- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
80
Antoine Pitroue4501852009-05-14 18:55:55 +000081- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
82 library. This means, for example, that opening an UTF-16 text file in
83 append mode doesn't add a BOM at the end of the file if the file isn't
84 empty.
85
R. David Murray74b89242009-05-13 17:33:03 +000086- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
87 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
88 corrects a pydoc regression.
89
R. David Murray99352742009-05-07 18:24:38 +000090- Issue 5955: aifc's close method did not close the file it wrapped,
91 now it does. This also means getfp method now returns the real fp.
92
Benjamin Peterson932073a2009-05-23 16:14:33 +000093Installation
94------------
95
96- Issue #6047: fullinstall has been removed because Python 3's executable will
97 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +000098
Ronald Oussorenbe7149e2009-05-26 21:39:08 +000099- Lib/smtpd.py is no longer installed as a script.
100
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000101Extension Modules
102-----------------
103
104- Issue #6093: Fix off-by-one error in locale.strxfrm.
105
Benjamin Peterson744af442009-05-23 18:51:49 +0000106- The _functools and _locale modules are now built into the libpython shared
107 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000108
Antoine Pitrou20327222009-05-24 20:39:11 +0000109Build
110-----
111
112- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
113 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
114 Clinton Roy.
115
Brett Cannon1262e7c2009-05-11 01:47:11 +0000116Tests
117-----
118
119- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
120 tests on darwin even when the OS was installed on a case-sensitive
121 filesystem. Also fixed tests that should not be run when
122 sys.dont_write_bytecode is true.
123
124
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000125What's New in Python 3.1 beta 1?
126================================
127
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000128*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000129
130Core and Builtins
131-----------------
132
Mark Dickinson865e01a2009-05-07 16:37:01 +0000133- Issue #5914: Add new C API function PyOS_string_to_double, and
134 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
135
Eric Smith741191f2009-05-06 13:08:15 +0000136- Issue #3382: float.__format__, complex.__format__, and %-formatting
137 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
138 affects nan -> NAN and inf -> INF.
139
Mark Hammond5a607a32009-05-06 08:04:54 +0000140- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
141 in all operations, including splitdrive, split, etc. splitunc() now issues
142 a PendingDeprecation warning.
143
Eric Smith63376222009-05-05 14:04:18 +0000144- Issue #5920: For float.__format__, change the behavior with the
145 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
146 to be like 'g' but with at least one decimal point and with a
147 default precision of 12. Previously, the behavior the same but with
148 a default precision of 6. This more closely matches str(), and
149 reduces surprises when adding alignment flags to the empty
150 presentation type. This also affects the new complex.__format__ in
151 the same way.
152
Martin v. Löwis011e8422009-05-05 04:43:17 +0000153- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
154
R. David Murrayb18500d2009-05-04 22:59:07 +0000155- Issue #5890: in subclasses of 'property' the __doc__ attribute was
156 shadowed by classtype's, even if it was None. property now
157 inserts the __doc__ into the subclass instance __dict__.
158
Antoine Pitrou244651a2009-05-04 18:56:13 +0000159- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
160 sequences. Patch by Nick Barnes and Victor Stinner.
161
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000162- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000163
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000164- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
165 received a new method, detach(). detach() disconnects the underlying stream
166 from the buffer or text IO and returns it.
167
Mark Dickinson33841c32009-05-01 15:37:04 +0000168- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
169 floats with absolute value over 1e50. Also remove length
170 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
171 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000172
Eric Smith741191f2009-05-06 13:08:15 +0000173- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000174 format(complex(1, 2./3), '.5') now produces a sensible result.
175
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000176- Issue #5864: Fix empty format code formatting for floats so that it
177 never gives more than the requested number of significant digits.
178
Eric Smith6dc46f52009-04-27 20:39:49 +0000179- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
180 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
181
Eric Smithcc32a112009-04-26 21:35:14 +0000182- Issue #5835: Deprecate PyOS_ascii_formatd.
183
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000184- Issue #4971: Fix titlecase for characters that are their own
185 titlecase, but not their own uppercase.
186
Benjamin Peterson193152c2009-04-25 01:08:45 +0000187- Issue #5283: Setting __class__ in __del__ caused a segfault.
188
Mark Dickinsonad476da2009-04-23 19:14:16 +0000189- Issue #5816: complex(repr(z)) now recovers z exactly, even when
190 z involves nans, infs or negative zeros.
191
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000192- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000193
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000194- Issue #1869 (and many duplicates): make round(x, n) correctly
195 rounded for a float x, by using the decimal <-> binary conversions
196 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
197 consistently agrees with format(x, '.2f').
198
Benjamin Petersonae937c02009-04-18 20:54:08 +0000199- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
200 some builtin types.
201
Eric Smith0923d1d2009-04-16 20:16:10 +0000202- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
203
Eric Smith35e84722009-04-16 20:21:28 +0000204- Issue #5515: str.format() type 'n' combined with commas and leading
205 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000206
207- Implement PEP 378, Format Specifier for Thousands Separator, for
208 floats.
209
Mark Dickinson3370cce2009-04-17 22:40:53 +0000210- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000211 1e11, not 1e12. This avoids printing 13 significant digits in
212 situations where only 12 of them are correct. Example problem
213 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
214 long time.)
215
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000216- Issue #1580: On most platforms, use a 'short' float repr: for a
217 finite float x, repr(x) now outputs a string based on the shortest
218 sequence of decimal digits that rounds to x. Previous behaviour was
219 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000220 Another minor difference is that the new repr switches to
221 exponential notation at 1e16 instead of the previous 1e17; this
222 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000223
224 There's a new sys attribute sys.float_repr_style, which takes
225 the value 'short' to indicate that we're using short float repr,
226 and 'legacy' if the short float repr isn't available for one
227 reason or another.
228
229 The float repr change involves incorporating David Gay's 'perfect
230 rounding' code into the Python core (it's in Python/dtoa.c). As a
231 secondary consequence, all string-to-float and float-to-string
232 conversions (including all float formatting operations) will be
233 correctly rounded on these platforms.
234
235 See issue 1580 discussions for details of platforms for which
236 this change does not apply.
237
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000238- Issue #5759: float() didn't call __float__ on str subclasses.
239
Georg Brandlabc38772009-04-12 15:51:51 +0000240- The string.maketrans() function is deprecated; there is a new static method
241 maketrans() on the bytes and bytearray classes. This removes confusion about
242 the types string.maketrans() is supposed to work with, and mirrors the
243 methods available on the str class.
244
R. David Murraydc6da8a2009-04-09 22:16:43 +0000245- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
246 its clarity and its speed.
247
Matthias Klose091c7b12009-04-07 13:24:27 +0000248- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
249 to avoid compiler warnings.
250
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000251- Issue #3739: The unicode-internal encoder now reports the number of characters
252 consumed like any other encoder (instead of the number of bytes).
253
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000254Installation
255------------
256
257- Issue #5756: Install idle and pydoc with a 3 suffix.
258
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000259Library
260-------
261
Martin v. Löwis403117a2009-05-24 19:19:17 +0000262- Issue #5311: bdist_msi can now build packages that do not depend on a
263 specific Python version.
264
Raymond Hettingereb816952009-05-29 01:22:18 +0000265- Issue #5150: IDLE's format menu now has an option to strip trailing
266 whitespace.
267
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000268- Issue #5940: distutils.command.build_clib.check_library_list was not doing
269 the right type checkings anymore.
270
Thomas Heller00cfc372009-05-05 19:04:40 +0000271- Issue #4875: On win32, ctypes.util.find_library does no longer
272 return directories.
273
Georg Brandl243ad662009-05-05 09:00:19 +0000274- Issue #5142: Add the ability to skip modules while stepping to pdb.
275
Georg Brandl991f9202009-05-05 08:31:54 +0000276- Issue #1309567: Fix linecache behavior of stripping subdirectories when
277 looking for files given by a relative filename.
278
Georg Brandleaa84ef2009-05-05 08:14:33 +0000279- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
280 turtle demos in Demo/turtle.
281
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000282- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
283 extracting a file to the root directory.
284
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000285- Issue #5913: os.listdir() should fail for empty path on windows.
286
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000287- Issue #5084: unpickling now interns the attribute names of pickled objects,
288 saving memory and avoiding growth in size of subsequent pickles. Proposal
289 and original patch by Jake McGuire.
290
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000291- The json module now works exclusively with str and not bytes.
292
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000293- Issue #3959: The ipaddr module has been added to the standard library.
294 Contributed by Google.
295
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000296- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
297 error when a named pipe is encountered, rather than blocking infinitely.
298
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000299- Issue #5857: tokenize.tokenize() now returns named tuples.
300
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000301- Issue #4305: ctypes should now build again on mipsel-linux-gnu
302
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000303- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
304 string is already in normalized form, by performing a quick check beforehand.
305 Original patch by Rauli Ruohonen.
306
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000307- Issue #5853: calling a function of the mimetypes module from several threads
308 at once could hit the recursion limit if the mimetypes database hadn't been
309 initialized before.
310
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000311- Issue #5854: Updated __all__ to include some missing names and remove some
312 names which should not be exported.
313
Thomas Heller34596a92009-04-24 20:50:00 +0000314- Issue #3102: All global symbols that the _ctypes extension defines
315 are now prefixed with 'Py' or '_ctypes'.
316
317- Issue #5041: ctypes does now allow pickling wide character.
318
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000319- Issue #5812: For the two-argument form of the Fraction constructor,
320 Fraction(m, n), m and n are permitted to be arbitrary Rational
321 instances.
322
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000323- Issue #5812: Fraction('1e6') is valid: more generally, any string
324 that's valid for float() is now valid for Fraction(), with the
325 exception of strings representing NaNs and infinities.
326
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000327- Issue #5734: BufferedRWPair was poorly tested and had several glaring
328 bugs. Patch by Brian Quinlan.
329
R. David Murray9e94ddf2009-04-13 17:06:33 +0000330- Issue #1161031: fix readwrite select flag handling: POLLPRI now
331 results in a handle_expt_event call, not handle_read_event, and POLLERR
332 and POLLNVAL now call handle_close, not handle_expt_event. Also,
333 dispatcher now has an 'ignore_log_types' attribute for suppressing
334 log messages, which is set to 'warning' by default.
335
Matthias Klosea3d29e82009-04-07 13:13:10 +0000336- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
337 new arguments introduced in 2.5.
338
Walter Dörwald1b08b302009-04-25 14:13:56 +0000339- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
340 makeunicodedata.py and regenerated the Unicode database (This fixes
341 u'\u1d79'.lower() == '\x00').
342
Matthias Klose535336f2009-04-07 13:49:45 +0000343Extension Modules
344-----------------
345
Benjamin Petersone04b6272009-05-04 22:25:21 +0000346- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
347 pwd.
348
Mark Dickinsonea835e72009-04-19 20:40:33 +0000349- Issue #5463: In struct module, remove deprecated float coercion
350 for integer type codes: struct.pack('L', 0.3) should now raise
351 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
352 The version number has been bumped to 0.3.
353
Matthias Klose535336f2009-04-07 13:49:45 +0000354- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
355 using Berkley-DB.
356
Nick Coghlan47384702009-04-22 16:13:36 +0000357Tests
358-----
359
360- Issue #5354: New test support function import_fresh_module() makes
361 it easy to import both normal and optimised versions of modules.
362 test_heapq and test_warnings have been adjusted to use it, tests for
363 other modules with both C and Python implementations in the stdlib
364 can be adjusted to use it over time.
365
Walter Dörwald4ba80132009-04-25 12:48:43 +0000366- Issue #5837: Certain sequences of calls to set() and unset() for
367 support.EnvironmentVarGuard objects restored the environment variables
368 incorrectly on __exit__.
369
Benjamin Petersonb173f782009-05-05 22:31:58 +0000370C-API
371-----
372
373- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
374
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000375
Benjamin Petersond1735892009-03-07 18:46:21 +0000376What's New in Python 3.1 alpha 2?
377=================================
378
Benjamin Peterson88f14352009-04-04 21:06:52 +0000379*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000380
381Core and Builtins
382-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000383
Eric Smith1e1d7d22009-04-03 22:25:33 +0000384- Implement PEP 378, Format Specifier for Thousands Separator, for
385 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000386
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000387- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
388
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000389- Issue #5499: The 'c' code for argument parsing functions now only accepts a
390 byte, and the 'C' code only accepts a unicode character.
391
Georg Brandl406b3d82009-04-11 21:24:37 +0000392- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
393 when hitting the recursion limit under certain circumstances.
394
Brett Cannon0759dd62009-04-01 18:13:07 +0000395- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
396
Georg Brandlab6f2f62009-03-31 04:16:10 +0000397- Fix a segfault when running test_exceptions with coverage, caused by
398 insufficient checks in accessors of Exception.__context__.
399
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000400- Issue #5604: non-ASCII characters in module name passed to
401 imp.find_module() were converted to UTF-8 while the path is
402 converted to the default filesystem encoding, causing nonsense.
403
Benjamin Peterson09832742009-03-26 17:15:46 +0000404- Issue #5126: str.isprintable() returned False for space characters.
405
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000406- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
407 the end sys.path, for compatibility with the system install of Python.
408
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000409- Issue #4688: Add a heuristic so that tuples and dicts containing only
410 untrackable objects are not tracked by the garbage collector. This can
411 reduce the size of collections and therefore the garbage collection overhead
412 on long-running programs, depending on their particular use of datatypes.
413
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000414- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
415 improve its performance. Long divisions and remainder operations
416 are now between 50% and 150% faster.
417
Mark Dickinsonbd792642009-03-18 20:06:12 +0000418- Issue #4258: Make it possible to use base 2**30 instead of base
419 2**15 for the internal representation of integers, for performance
420 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
421 --enable-big-digits option to configure, which overrides the
422 default. Add sys.int_info structseq to provide information about
423 the internal format.
424
Mark Dickinson081dfee2009-03-18 14:47:41 +0000425- Issue #4474: PyUnicode_FromWideChar now converts characters outside
426 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
427 and sizeof(Py_UNICODE) == 2.
428
Eric Smith8ec90442009-03-14 12:29:34 +0000429- Issue #5237: Allow auto-numbered fields in str.format(). For
430 example: '{} {}'.format(1, 2) == '1 2'.
431
Antoine Pitrou652e7072009-03-13 19:25:20 +0000432- Issue #5392: when a very low recursion limit was set, the interpreter would
433 abort with a fatal error after the recursion limit was hit twice.
434
Matthias Klose042f1332009-04-04 14:32:42 +0000435- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
436 short file names.
437
Benjamin Petersond1735892009-03-07 18:46:21 +0000438Library
439-------
440
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000441- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000442 mailbox.MH.get_message().
443
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000444- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
445 error substitutions from non-strict codec error callbacks in
446 incrementalencoder and StreamWriter.
447
Georg Brandl33c28812009-04-01 23:07:29 +0000448- Issue #5656: Fix the coverage reporting when running the test suite with
449 the -T argument.
450
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000451- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
452
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000453- Issue #5624: Fix the _winreg module name still used in several modules.
454
Benjamin Petersona1b49012009-03-31 23:11:32 +0000455- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
456
Jesse Nollera9314042009-03-31 22:36:44 +0000457- Issue #5619: Multiprocessing children disobey the debug flag and causes
458 popups on windows buildbots. Patch applied to work around this issue.
459
Jesse Noller32d68c22009-03-31 18:48:42 +0000460- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
461
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000462- Issue #5387: Fixed mmap.move crash by integer overflow.
463
Jesse Nollerf8d00852009-03-31 03:25:07 +0000464- Issue #5261: Patch multiprocessing's semaphore.c to support context
465 manager use: "with multiprocessing.Lock()" works now.
466
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000467- Issue #5236: Change time.strptime() to only take strings. Didn't work with
468 bytes already but the failure was non-obvious.
469
Jesse Noller7af4ef82009-03-30 16:47:15 +0000470- Issue #5177: Multiprocessing's SocketListener class now uses
471 socket.SO_REUSEADDR on all connections so that the user no longer needs
472 to wait 120 seconds for the socket to expire.
473
Benjamin Peterson48e24782009-03-29 13:02:52 +0000474- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
475
Antoine Pitrou66994e12009-03-29 00:45:26 +0000476- Issue #1174606: Calling read() without arguments of an unbounded file
477 (typically /dev/zero under Unix) could crash the interpreter.
478
Benjamin Peterson59406a92009-03-26 17:10:29 +0000479- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
480 io.BufferedRandom have been deprecated for removal in Python 3.2.
481
Lars Gustäbel42e00912009-03-22 20:34:29 +0000482- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
483 forever on incomplete input. That caused tarfile.open() to hang when used
484 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
485 partial bzip2 compressed data.
486
Mark Dickinson79f52032009-03-17 23:12:51 +0000487- Issue #2110: Add support for thousands separator and 'n' type
488 specifier to Decimal.__format__
489
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000490- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
491 '>' alignment characters.
492
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000493- The error detection code in FileIO.close() could fail to reflect the `errno`
494 value, and report it as -1 instead.
495
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000496- Issue #5016: FileIO.seekable() could return False if the file position
497 was negative when truncated to a C int. Patch by Victor Stinner.
498
Mark Dickinsonae681df2009-03-21 10:26:31 +0000499Extension Modules
500-----------------
501
Benjamin Petersone099b372009-04-04 17:09:35 +0000502- Issue #5391: mmap now deals exclusively with bytes.
503
Mark Dickinsonae681df2009-03-21 10:26:31 +0000504- Issue #5463: In struct module, remove deprecated overflow wrapping
505 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000506 struct.error instead of returning b'\xff\xff\xff\xff'. The
507 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
508 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000509
Benjamin Petersond1735892009-03-07 18:46:21 +0000510
Benjamin Petersona58a6262009-03-07 16:34:40 +0000511What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000512================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000513
Benjamin Petersona58a6262009-03-07 16:34:40 +0000514*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000515
516Core and Builtins
517-----------------
518
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000519- The io module has been reimplemented in C for speed.
520
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000521- Give dict views an informative __repr__.
522
Eric Smith5e5c0db2009-02-20 14:25:03 +0000523- Issue #5247: Improve error message when unknown format codes are
524 used when using str.format() with str, int, and float arguments.
525
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000526- Issue #5249: time.strftime returned malformed string when format string
527 contained non ascii character on windows.
528
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000529- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
530 source has already been decoded into str.
531
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000532- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
533 rotating the object pointer by 4 bits to the right.
534
Mark Dickinson87ec0852009-02-09 17:15:59 +0000535- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
536 it now forces its argument to double before testing for infinity.
537
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000538- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
539 returns a non-number type.
540
Benjamin Peterson87618552009-02-08 15:00:52 +0000541- Issue #5182: Removed memoryview.__str__.
542
Mark Dickinsonc008a172009-02-01 13:59:22 +0000543- Issue #1717: Removed builtin cmp() function, dropped tp_compare
544 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000545 the type definition cmpfunc. The tp_compare slot has been renamed
546 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000547
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000548- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000549 were suppressing all exceptions. These include list() and bytearray().
550
Mark Dickinson1124e712009-01-28 21:25:58 +0000551- Issue #4707: round(x, n) now returns an integer if x is an integer.
552 Previously it returned a float.
553
Antoine Pitroub52ec782009-01-25 16:34:23 +0000554- Issue #4753: By enabling a configure option named '--with-computed-gotos'
555 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
556 evaluation loop is compiled with a new dispatch mechanism which gives
557 speedups of up to 20%, depending on the system, on various benchmarks.
558
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000559- Issue #4874: Most builtin decoders now reject unicode input.
560
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000561- Issue #4842: Don't allow trailing 'L' when constructing an integer
562 from a string.
563
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000564- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
565
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000566- Issue #4838: When a module is deallocated, free the memory backing the
567 optional module state data.
568
Mark Dickinson8055afd2009-01-17 10:04:45 +0000569- Issue #4910: Rename nb_long slot to nb_reserved, and change its
570 type to (void *).
571
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000572- Issue #4935: The overflow checking code in the expandtabs() method common
573 to str, bytes and bytearray could be optimized away by the compiler, letting
574 the interpreter segfault instead of raising an error.
575
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000576- Issue #3720: Fix a crash when an iterator modifies its class and removes its
577 __next__ method.
578
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000579- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
580 function no longer attempt to call the __long__ slot to convert an object
581 to an integer. Only the __int__ and __trunc__ slots are examined.
582
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000583- Issue #4893: Use NT threading on CE.
584
Martin v. Löwisec59d042009-01-12 07:59:10 +0000585- Issue #4915: Port sysmodule to Windows CE.
586
Antoine Pitrouab868312009-01-10 15:40:25 +0000587- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
588 common cases are optimized thanks to a dedicated fast path and a moderate
589 amount of loop unrolling.
590
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000591- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
592 collecting the oldest generation) so that allocating lots of objects without
593 destroying them does not show quadratic performance. Based on a proposal by
594 Martin von Löwis at
595 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
596
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000597- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000598 having been closed (for instance, a read() call could return some
599 previously buffered data). Patch by Dmitry Vasiliev.
600
Antoine Pitrou05608432009-01-09 18:53:14 +0000601- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
602 flag to work properly. Furthermore, when specifying -u, the text stdout
603 and stderr streams have line-by-line buffering enabled (the default being
604 to buffer arbitrary chunks of data).
605
Raymond Hettinger35631532009-01-09 03:58:09 +0000606- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
607 instead of ints (reducing its size from 4 to 8 times thereby reducing
608 Python's overall memory).
609
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000610- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
611 an existing .py counterpart, override the co_filename attributes of all
612 code objects if the original filename is obsolete (which can happen if the
613 file has been renamed, moved, or if it is accessed through different paths).
614 Patch by Ziga Seilnacht and Jean-Paul Calderone.
615
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000616- Issue #4580: Fix slicing of memoryviews when the item size is greater than
617 one byte. Also fixes the meaning of len() so that it returns the number of
618 items, rather than the size in bytes.
619
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000620- Issue #4075: Use OutputDebugStringW in Py_FatalError.
621
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000622- Issue #4747: When the terminal does not use utf-8, executing a script with
623 non-ascii characters in its name could fail with a "SyntaxError: None" error.
624
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000625- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000626 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000627
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000628- Issue #3680: Reference cycles created through a dict, set or deque iterator
629 did not get collected.
630
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000631- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
632 where the tp_hash and tp_dict slots are both NULL.
633
Georg Brandlccc47b62008-12-28 11:44:14 +0000634- Issue #4759: None is now allowed as the first argument of
635 bytearray.translate(). It was always allowed for bytes.translate().
636
Skip Montanaro80072cb2008-12-23 03:51:14 +0000637- Added test case to ensure attempts to read from a file opened for writing
638 fail.
639
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000640- Issue #3106: Speedup some comparisons (str/str and int/int).
641
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000642- Issue #2183: Simplify and optimize bytecode for list, dict and set
643 comprehensions. Original patch for list comprehensions by Neal Norwitz.
644
Antoine Pitrou621601a2008-12-17 23:18:19 +0000645- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
646 print elapsed times, not only when some objects are uncollectable /
647 unreachable. Original patch by Neil Schemenauer.
648
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000649- Issue #3439: Add a bit_length method to int.
650
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000651- Issue #2173: When getting device encoding, check that return value of
652 nl_langinfo is not the empty string. This was causing silent build
653 failures on OS X.
654
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000655- Issue #4597: Fixed several opcodes that weren't always propagating
656 exceptions.
657
658- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000659 context manager returns a value that cannot be converted to a bool.
660
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000661- Issue #4445: Replace "sizeof(PyBytesObject)" with
662 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
663 bytes instances. On a typical machine this saves 3 bytes of memory
664 (on average) per allocation of a bytes instance.
665
Christian Heimesa872de52008-12-05 08:26:55 +0000666- Issue #4533: File read operation was dreadfully slow due to a slowly
667 growing read buffer. Fixed by using the same growth rate algorithm as
668 Python 2.x.
669
Antoine Pitrou5504e892008-12-06 21:27:53 +0000670- Issue #4509: Various issues surrounding resize of bytearray objects to
671 which there are buffer exports (e.g. memoryview instances).
672
Georg Brandlf9734072008-12-07 15:30:06 +0000673- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
674 method on file objects with closefd=False. The file descriptor is still
675 kept open but the file object behaves like a closed file. The ``FileIO``
676 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000677
Antoine Pitroubc420402008-12-07 20:14:49 +0000678- Issue #4569: Interpreter crash when mutating a memoryview with an item size
679 larger than 1.
680
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000681- Issue #4748: Lambda generators no longer return a value.
682
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000683- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
684
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000685- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
686 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
687 step. This avoids problems with counting UTF-8 bytes that ignores the effect
688 of using the replace error handler in PyUnicode_DecodeUTF8().
689
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000690Library
691-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000692
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000693- Issue #6048: Now Distutils uses the tarfile module in archive_util.
694
Tarek Ziadé822eb842009-05-19 16:22:57 +0000695- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
696 and tests on pywin32 by Tim Golden.
697
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000698- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
699
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000700- Issue #6046: Fixed the library extension when distutils build_ext is used
701 inplace. Initial patch by Roumen Petrov.
702
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000703- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
704 subcommand.
705
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000706- Issue #6022: a test file was created in the current working directory by
707 test_get_outputs in Distutils.
708
Tarek Ziadéff0e5002009-05-12 17:14:01 +0000709- Issue #5977: distutils build_ext.get_outputs was not taking into account the
710 inplace option. Initial patch by kxroberto.
711
Tarek Ziadé06fbee12009-05-10 10:34:01 +0000712- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
713 for old-style extensions.
714
Tarek Ziadébe5b1b92009-05-09 10:09:11 +0000715- Issue #5976: Fixed Distutils test_check_environ.
716
Tarek Ziadé5662d3e2009-05-07 21:24:43 +0000717- Issue #5941: Distutils build_clib command was not working anymore because
718 of an incomplete costumization of the archiver command. Added ARFLAGS in the
719 Makefile besides AR and make Distutils use it. Original patch by David
720 Cournapeau.
721
R. David Murrayb507d2e2009-04-29 15:34:32 +0000722- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
723
Tarek Ziadé81623822009-04-29 08:07:44 +0000724- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
725 anymore.
726
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000727- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000728 sysconfig.get_config_vars.
729
Tarek Ziadé23336082009-04-25 12:39:56 +0000730- Issue #4951: Fixed failure in test_httpservers.
731
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000732- Issue #5795: Fixed test_distutils failure on Debian ppc.
733
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000734- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
735
Georg Brandl1f9fa312009-04-27 16:42:58 +0000736- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
737 a value in SafeConfigParser.
738
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000739- Issue #5732: added a new command in Distutils: check.
740
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000741- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000742 platforms. Initial patch by Paul Moore.
743
Tarek Ziadéf6370502009-04-05 22:57:21 +0000744- Issue #5095: Added bdist_msi to the list of bdist supported formats.
745 Initial fix by Steven Bethard.
746
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000747- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
748 Initial fix by Wayne Davison.
749
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000750- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000751
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000752- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000753
Brett Cannonf47e84c2009-04-01 16:06:01 +0000754- Issue #1665206 (partially): Move imports in cgitb to the top of the module
755 instead of performing them in functions. Helps prevent import deadlocking in
756 threads.
757
R. David Murraye59482e2009-04-01 03:42:00 +0000758- Issue #2522: locale.format now checks its first argument to ensure it has
759 been passed only one pattern, avoiding mysterious errors where it appeared
760 that it was failing to do localization.
761
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000762- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
763 Brandl.
764
Antoine Pitrou350370c2009-03-14 00:13:13 +0000765- Issue #1222: locale.format() bug when the thousands separator is a space
766 character.
767
Tarek Ziadé516db942009-03-11 12:52:00 +0000768- Issue #5472: Fixed distutils.test_util tear down. Original patch by
769 Tim Golden.
770
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000771- collections.deque() objects now have a read-only attribute called maxlen.
772
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000773- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
774 it is has been populated and properly configured in order to prevent
775 window flashing.
776
Guilherme Polo56f5be52009-03-07 01:54:57 +0000777- Issue #4792: Prevent a segfault in _tkinter by using the
778 guaranteed to be safe interp argument given to the PythonCmd in place of
779 the Tcl interpreter taken from a PythonCmd_ClientData.
780
781- Issue #5193: Guarantee that tkinter.Text.search returns a string.
782
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000783- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
784 Original patch by Akira Kitada.
785
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000786- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
787
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000788- Issue #5385: Fixed mmap crash after resize failure on windows.
789
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000790- Issue #5179: Fixed subprocess handle leak on failure on windows.
791
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000792- PEP 372: Added collections.OrderedDict().
793
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000794- The _asdict() for method for namedtuples now returns an OrderedDict().
795
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000796- configparser now defaults to using an ordered dictionary.
797
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000798- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
799 import guess_extension`` was used.
800
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000801- Issue #1733986: Fixed mmap crash in accessing elements of second map object
802 with same tagname but larger size than first map. (Windows)
803
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000804- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
805 overrun.
806
Tarek Ziadéf0721222009-02-28 10:16:43 +0000807- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
808 bdist_rpm command.
809
810- Issue #5378: added --quiet option to Distutils bdist_rpm command.
811
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000812- Issue #5052: make Distutils compatible with 2.3 again.
813
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000814- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
815 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000816
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000817- Issue #5287: Add exception handling around findCaller() call to help out
818 IronPython.
819
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000820- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
821 The file was resized to wrong size.
822
823- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
824
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000825- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000826 from the package_data and the data_files metadata.
827
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000828- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000829 support.TempdirManager, to avoid writing in the tests directory.
830
Tarek Ziadé68c50952009-02-13 23:04:17 +0000831- Issue #4524: distutils build_script command failed with --with-suffix=3.
832 Initial patch by Amaury Forgeot d'Arc.
833
Tarek Ziadé811d6242009-02-13 22:26:15 +0000834- Issue #2461: added tests for distutils.util
835
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000836- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
837 which inherited from numbers.py which did not have __slots__ defined. The
838 numbers hierarchy now has its own __slots__ declarations.
839
Antoine Pitroub353c122009-02-11 00:39:14 +0000840- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
841 encoding.
842
Thomas Heller465c8022009-02-10 18:59:04 +0000843- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
844 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
845
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000846- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
847 under NT and OS2. Patch by Philip Jenvey.
848
Brett Cannonbefb14f2009-02-10 02:10:16 +0000849- Issue #5128: Make compileall properly inspect bytecode to determine if needs
850 to be recreated. This avoids a timing hole thanks to the old reliance on the
851 ctime of the files involved.
852
Guilherme Polob681df42009-02-09 22:33:59 +0000853- Issue #5122: Synchronize tk load failure check to prevent a potential
854 deadlock.
855
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000856- Issue #1818: collections.namedtuple() now supports a keyword argument
857 'rename' which lets invalid fieldnames be automatically converted to
858 positional names in the form, _1, _2, ...
859
Guilherme Poloae098992009-02-09 16:44:24 +0000860- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
861
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000862- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
863 public documented method ``ZipImporter.get_filename()``.
864
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000865- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
866 the execution of packages by looking for and executing a ``__main__``
867 submodule when a package name is supplied. Initial patch by Andi
868 Vajda.
869
Guilherme Polo491aee22009-02-06 23:16:11 +0000870- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
871 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
872 Tkapp_Call when calling from a thread different than the one that created
873 the Tcl interpreter. Patch by Robert Hancock.
874
Eric Smith0e5b5622009-02-06 01:32:42 +0000875- Issue #4285: Change sys.version_info to be a named tuple. Patch by
876 Ross Light.
877
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000878- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000879 environment/Makefile. Patch by Douglas Greiman.
880
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000881- Issue #1276768: The verbose option was not used in the code of
882 distutils.file_util and distutils.dir_util.
883
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000884- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000885 --enabled-shared activated. Initial patch by Dave Peterson.
886
Guilherme Polo7f423952009-02-02 21:17:09 +0000887- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
888
Raymond Hettinger85602262009-02-03 04:19:10 +0000889- The shelve module now defaults to pickle protocol 3.
890
Brett Cannone61426e2009-01-30 01:31:34 +0000891- Fix a bug in the trace module where a bytes object from co_lnotab had its
892 items being passed through ord().
893
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000894- Issue #2047: shutil.move() could believe that its destination path was
895 inside its source path if it began with the same letters (e.g. "src" vs.
896 "src.new").
897
Guilherme Polo5f238482009-01-28 14:41:10 +0000898- Added the ttk module. See issue #2983: Ttk support for Tkinter.
899
Raymond Hettinger89e12962009-01-26 02:09:03 +0000900- Removed isSequenceType(), isMappingType, and isNumberType() from the
901 operator module; use the abstract base classes instead. Also removed
902 the repeat() function; use mul() instead.
903
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000904- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000905 collections.namedtuple() relied on __name__ being defined.
906
907- Backport importlib from Python 3.1. Only the import_module() function has
908 been backported to help facilitate transitions from 2.7 to 3.1.
909
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000910- Issue #1885: distutils. When running sdist with --formats=tar,gztar
911 the tar file was overriden by the gztar one.
912
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000913- Issue #4863: distutils.mwerkscompiler has been removed.
914
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000915- Added a new itertools functions: combinations_with_replacement()
916 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000917
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000918- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000919 allowed non-integer arguments.
920
Jesse Noller41faa542009-01-25 03:45:53 +0000921- Fix and properly document the multiprocessing module's logging
922 support, expose the internal levels and provide proper usage
923 examples.
924
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000925- Issue #1672332: fix unpickling of subnormal floats, which was
926 producing a ValueError on some platforms.
927
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000928- Issue #3881: Help Tcl to load even when started through the
929 unreadable local symlink to "Program Files" on Vista.
930
Martin v. Löwis59e47792009-01-24 14:10:07 +0000931- Issue #4710: Extract directories properly in the zipfile module;
932 allow adding directories to a zipfile.
933
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000934- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000935 --without-threads argument. When this occurs, _multiprocessing will
936 be disabled, and not compiled.
937
Antoine Pitrou08838b62009-01-21 00:55:13 +0000938- Issue #5008: When a file is opened in append mode with the new IO library,
939 do an explicit seek to the end of file (so that e.g. tell() returns the
940 file size rather than 0). This is consistent with the behaviour of the
941 traditional 2.x file object.
942
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000943- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
944 parameter was set.
945
Mark Dickinson8dd05142009-01-20 20:43:58 +0000946- Issue #4842: Always append a trailing 'L' when pickling longs using
947 pickle protocol 0. When reading, the 'L' is optional.
948
Brett Cannonafccd632009-01-20 02:21:27 +0000949- Add the importlib package.
950
Jesse Noller9a0fc972009-01-18 21:12:58 +0000951- Issue #4301: Patch the logging module to add processName support, remove
952 _check_logger_class from multiprocessing.
953
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000954- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000955 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000956
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000957- Issue #4959: inspect.formatargspec now works for keyword only arguments
958 without defaults.
959
Jesse Noller6214edd2009-01-19 16:23:53 +0000960- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
961 for *nix machines for negative handles and large int handles. Without this check
962 it is possible to segfault the interpreter.
963
Jesse Nollerb0516a62009-01-18 03:11:38 +0000964- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
965 in sharedctypes.py.
966
967- Issue #1225107: inspect.isclass() returned True for instances with a custom
968 __getattr__.
969
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000970- Issue #3826 and #4791: The socket module now closes the underlying socket
971 appropriately when it is being used via socket.makefile() objects
972 rather than delaying the close by waiting for garbage collection to do it.
973
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000974- Issue #1696199: Add collections.Counter() for rapid and convenient
975 counting.
976
Antoine Pitrou308705e2009-01-10 16:22:51 +0000977- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
978
Thomas Heller5e4e4272009-01-08 09:34:20 +0000979- Issue #4867: Fixed a crash in ctypes when passing a string to a
980 function without defining argtypes.
981
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000982- Issue #4272: Add an optional argument to the GzipFile constructor to override
983 the timestamp in the gzip stream. The default value remains the current time.
984 The information can be used by e.g. gunzip when decompressing. Patch by
985 Jacques Frechet.
986
Mark Dickinson315a20a2009-01-04 21:34:18 +0000987- Restore Python 2.3 compatibility for decimal.py.
988
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000989- Issue #3638: Remove functions from _tkinter module level that depend on
990 TkappObject to work with multiple threads.
991
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000992- Issue #4718: Adapt the wsgiref package so that it actually works with
993 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000994 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
995
Raymond Hettinger771ed762009-01-03 19:20:32 +0000996- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
997 to the decimal module.
998
Georg Brandl3a9b0622009-01-03 22:07:57 +0000999- Fractions.from_float() no longer loses precision for integers too big to
1000 cast as floats.
1001
Mark Dickinsonf9236412009-01-02 23:23:21 +00001002- Issue #4812: add missing underscore prefix to some internal-use-only
1003 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1004
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001005- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001006 did unnecessary work in the common case where no key function was specified.
1007
Georg Brandlb1441c72009-01-03 22:33:39 +00001008- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1009 the function is not a generator.
1010
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001011- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1012 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001013
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001014- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001015 function. Original patch by Thomas Heller.
1016
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001017- Issue #3767: Convert Tk object to string in tkColorChooser.
1018
Martin v. Löwise354d782008-12-29 16:03:04 +00001019- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1020
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001021- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1022 the code under test can be written inline if more practical.
1023
Georg Brandldb7b6b92009-01-01 15:53:14 +00001024- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1025 works as expected in the interactive environment.
1026
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001027- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1028 Gabriel Genellina.
1029
Antoine Pitrou180a3362008-12-14 16:36:46 +00001030- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1031 boundary.
1032
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001033- Issue #4223: inspect.getsource() will now correctly display source code
1034 for packages loaded via zipimport (or any other conformant PEP 302
1035 loader). Original patch by Alexander Belopolsky.
1036
1037- Issue #4201: pdb can now access and display source code loaded via
1038 zipimport (or any other conformant PEP 302 loader). Original patch by
1039 Alexander Belopolsky.
1040
1041- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1042 302 conformant loader) will now work correctly in most cases (they
1043 are still subject to the constraints that exist for all code running
1044 from inside a module loaded via a PEP 302 loader and attempting to
1045 perform IO operations based on __file__). Original patch by
1046 Alexander Belopolsky.
1047
1048- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1049 allows backporting to maintenance branches. Original patch by
1050 Alexander Belopolsky.
1051
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001052- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1053 a non-ASCII letter.
1054
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001055- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1056
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001057- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1058 codec cannot be found. This is for compatibility with the builtin behavior.
1059
Facundo Batista708d5812008-12-11 04:20:07 +00001060- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1061 give correct results in the case where one argument is a quiet NaN
1062 and the other is a finite number that requires rounding.
1063
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001064- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1065 libs.
1066
Georg Brandlf9734072008-12-07 15:30:06 +00001067- Added the subprocess.check_call_output() convenience function to get output
1068 from a subprocess on success or raise an exception on error.
1069
1070- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1071 support unusual filenames (such as those containing semi-colons) in
1072 Content-Disposition headers.
1073
1074- Issue #4384: Added logging integration with warnings module using
1075 captureWarnings(). This change includes a NullHandler which does nothing;
1076 it will be of use to library developers who want to avoid the "No handlers
1077 could be found for logger XXX" message which can appear if the library user
1078 doesn't configure logging.
1079
1080- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1081 exception.
1082
Georg Brandleee31162008-12-07 15:15:22 +00001083- Issue #4529: fix the parser module's validation of try-except-finally
1084 statements.
1085
1086- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1087 not a malformed option.
1088
1089- Added the subprocess.check_output() convenience function to get output
1090 from a subprocess on success or raise an exception on error.
1091
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001092- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1093 the corresponding tests now pass.
1094
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001095- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1096 it was calling the wrong open() function.
1097
Fred Drake9a0a65b2008-12-04 19:24:50 +00001098- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1099 support unusual filenames (such as those containing semi-colons) in
1100 Content-Disposition headers.
1101
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001102- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1103 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1104
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001105- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1106 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1107 and getservbyport().
1108
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001109- Windows locale mapping updated to Vista.
1110
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001111Tools/Demos
1112-----------
1113
Antoine Pitrou8a681222009-02-07 17:13:31 +00001114- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1115 and make it 2.6-compatible.
1116
Guilherme Poloa7d27972009-01-28 16:06:51 +00001117- Ttk demos added in Demo/tkinter/ttk/
1118
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001119- Issue #4677: add two list comprehension tests to pybench.
1120
Georg Brandlb1441c72009-01-03 22:33:39 +00001121
1122Build
1123-----
1124
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001125- Issue #6094: Build correctly with Subversion 1.7.
1126
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001127- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1128
Antoine Pitrou8966c992009-05-01 21:18:27 +00001129- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1130 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1131
Matthias Klose55708cc2009-04-30 08:06:49 +00001132- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
1133 the order that backends for the dbm extension are checked.
1134
Matthias Klose906785c2009-02-22 23:18:38 +00001135- Link the shared python library with $(MODLIBS).
1136
Martin v. Löwis11f72102009-02-10 13:13:30 +00001137- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1138
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001139- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1140
Martin v. Löwise97637d2009-01-11 09:45:11 +00001141- Issue #4895: Use _strdup on Windows CE.
1142
Georg Brandlb1441c72009-01-03 22:33:39 +00001143- Issue #4472: "configure --enable-shared" now works on OSX
1144
1145- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1146
1147- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1148
1149- Issue #4289: Remove Cancel button from AdvancedDlg.
1150
1151- Issue #1656675: Register a drop handler for .py* files on Windows.
1152
1153- Issue #4120: Exclude manifest from extension modules in VS2008.
1154
1155- Issue #4091: Install pythonxy.dll in system32 again.
1156
1157- Issue #4018: Disable "for me" installations on Vista.
1158
1159- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1160
1161- Issue #4204: Fixed module build errors on FreeBSD 4.
1162
1163
1164C-API
1165-----
1166
Mark Dickinson21776072009-02-10 16:13:25 +00001167- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1168 for negative arguments. Previously, it raised TypeError.
1169
Georg Brandlb1441c72009-01-03 22:33:39 +00001170- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1171
1172- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1173 the GIL is released, or owned by another thread.
1174
1175- Issue #4122: On Windows, fix a compilation error when using the
1176 Py_UNICODE_ISSPACE macro in an extension module.
1177
1178
Mark Dickinsone675f082008-12-11 21:56:00 +00001179Extension Modules
1180-----------------
1181
Gregory P. Smith365a1862009-02-12 07:35:29 +00001182- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1183 supporting objects as input no matter how it was compiled (built in
1184 implementations or external openssl library).
1185
Mark Dickinson29500f62009-01-15 15:36:10 +00001186- Issue #4397: Fix occasional test_socket failure on OS X.
1187
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001188- Issue #4279: Fix build of parsermodule under Cygwin.
1189
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001190- Issue #4751: hashlib now releases the GIL when hashing large buffers
1191 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1192 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1193
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001194- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1195
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001196- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1197 or decompress several streams at once on multi-CPU systems. Also, the GIL
1198 is now released when computing the CRC of a large buffer. Patch by ebfe.
1199
Georg Brandlb1441c72009-01-03 22:33:39 +00001200- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1201
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001202- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1203
Mark Dickinsone675f082008-12-11 21:56:00 +00001204- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1205 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001206
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001207- Issue #4583: array.array would not always prohibit resizing when a buffer
1208 has been exported, resulting in an interpreter crash when accessing the
1209 buffer.
1210
Martin v. Löwis841edad2008-11-30 10:36:49 +00001211
Jack Diederiche0cbd692009-04-01 04:27:09 +00001212- Issue #5228: Make functools.partial objects can now be pickled.
1213
Guilherme Polo9de29af2009-01-28 20:40:48 +00001214Tests
1215-----
1216
R. David Murraya21e4ca2009-03-31 23:16:50 +00001217- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001218 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001219 from test support, which does the conversion.
1220
Guilherme Polo9de29af2009-01-28 20:40:48 +00001221- Issue #5083: New 'gui' resource for regrtest.
1222
1223
Brett Cannon7317c1e2008-11-25 19:19:17 +00001224Docs
1225----
1226
Georg Brandl52b92cc2008-05-25 09:43:03 +00001227
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001228**(For information about older versions, consult the HISTORY file.)**