blob: e24103242e8e1bb143a6b2644391676e941a700a [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000015- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
16 object, and not an int. Fix the corresponding error message, and the
17 documentation.
18
Benjamin Petersonf1664ae2009-07-01 01:28:55 +000019- The deprecated PyCObject has been removed.
20
Mark Dickinson835a6c82009-06-30 15:45:17 +000021- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
22 This fixes a build failure on HP-UX: int32_t and uint32_t are
23 defined in inttypes.h instead of stdint.h on that platform.
24
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +000025- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +000026 the 'surrogateescape' error handler, a string which contains unpaired
27 surrogates.
28
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +000029- Issue #4856: Remove checks for win NT.
30
Benjamin Peterson466a7822009-07-02 21:44:01 +000031C-API
32-----
33
Benjamin Peterson89b89172009-07-03 13:30:25 +000034- Issue #6405: Remove duplicatet type declarations in descrobject.h.
35
Benjamin Peterson466a7822009-07-02 21:44:01 +000036- The code flags for old __future__ features are now available again.
37
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000038Library
39-------
40
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +000041- Issue #6323: The pdb debugger did not exit when running a script with a
42 syntax error.
43
Gregory P. Smithd06fa472009-07-04 02:46:54 +000044- Issue #3392: The subprocess communicate() method no longer fails in select()
45 when file descriptors are large; communicate() now uses poll() when possible.
46
Antoine Pitrou54923952009-07-01 14:53:06 +000047- Issue #6369: Fix an RLE decompression bug in the binhex module.
48
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +000049- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
50
Benjamin Peterson5a6deb42009-06-28 21:35:31 +000051- The deprecated function string.maketrans has been removed.
52
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +000053- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
54 sys.path.
55
56Extension Modules
57-----------------
58
59- Issue #4509: array.array objects are no longer modified after an operation
60 failing due to the resize restriction in-place when the object has exported
61 buffers.
62
Martin v. Löwis95c46012009-06-28 09:36:14 +000063Build
64-----
65
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +000066- Issue 4601: 'make install' did not set the appropriate permissions on
67 directories.
68
Martin v. Löwis95c46012009-06-28 09:36:14 +000069- Issue 5390: Add uninstall icon independent of whether file
70 extensions are installed.
71
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000072
Benjamin Peterson01bf2362009-06-13 14:50:22 +000073What's New in Python 3.1?
74=========================
75
76*Release date: 27-June-2009*
77
78Core and Builtins
79-----------------
80
Mark Dickinsonad195562009-06-24 19:01:32 +000081- Issue #6334: Fix bug in range length calculation for ranges with
82 large arguments.
83
Raymond Hettinger159eac92009-06-23 20:38:54 +000084- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
85 because it wasn't recognized as a sequence).
86
Benjamin Peterson01bf2362009-06-13 14:50:22 +000087Library
88-------
89
Vinay Sajip0f6eac22009-06-21 17:46:49 +000090- Issue #6314: logging.basicConfig() performs extra checks on the "level"
91 argument.
92
Facundo Batista10706e22009-06-19 20:34:30 +000093- Issue #6274: Fixed possible file descriptors leak in subprocess.py
94
Benjamin Peterson6a38ced2009-06-14 18:32:19 +000095- Accessing io.StringIO.buffer now raises an AttributeError instead of
96 io.UnsupportedOperation.
97
Vinay Sajip0f6eac22009-06-21 17:46:49 +000098- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +000099 (On Unix)
100
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000101- Issue #1202: zipfile module would cause a struct.error when attempting to
102 store files with a CRC32 > 2**31-1.
103
Matthias Kloseab2b7552009-06-22 13:05:52 +0000104Extension Modules
105-----------------
106
107- Issue #5590: Remove unused global variable in pyexpat extension.
108
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000109
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000110What's New in Python 3.1 Release Candidate 2?
111=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000112
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000113*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000114
115Core and Builtins
116-----------------
117
Raymond Hettinger94f55832009-06-12 18:40:16 +0000118- Fixed SystemError triggered by "range([], 1, -1)".
119
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000120- Issue #5924: On Windows, a large PYTHONPATH environment variable
121 (more than 255 characters) would be completely ignored.
122
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000123- Issue #4547: When debugging a very large function, it was not always
124 possible to update the lineno attribute of the current frame.
125
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000126- Issue #5330: C functions called with keyword arguments were not reported by
127 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
128
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000129Library
130-------
131
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000132- Issue #6258: Support AMD64 in bdist_msi.
133
R. David Murray58641de2009-06-12 15:33:19 +0000134- Issue #6195: fixed doctest to no longer try to read 'source' data from
135 binary files.
136
Vinay Sajipaffbd872009-06-11 10:11:47 +0000137- Issue #5262: Fixed bug in next rollover time computation in
138 TimedRotatingFileHandler.
139
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000140- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
141 errors property. Additionally, the errors and encoding properties of StringIO
142 are always None now.
143
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000144- Issue #6137: The pickle module now translates module names when loading
145 or dumping pickles with a 2.x-compatible protocol, in order to make data
146 sharing and migration easier. This behaviour can be disabled using the
147 new `fix_imports` optional argument.
148
Raymond Hettinger40925d22009-06-04 18:32:39 +0000149- Removed the ipaddr module.
150
Georg Brandlb54d8012009-06-04 09:11:51 +0000151- Issue #3613: base64.{encode,decode}string are now called
152 base64.{encode,decode}bytes which reflects what type they accept and return.
153 The old names are still there as deprecated aliases.
154
Georg Brandl317185a2009-06-04 09:00:56 +0000155- Issue #5767: Remove sgmlop support from xmlrpc.client.
156
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000157- Issue #6150: Fix test_unicode on wide-unicode builds.
158
Antoine Pitrouc06de472009-05-30 21:04:26 +0000159- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
160 parameters.
161
Martin v. Löwis79b13872009-06-01 04:13:14 +0000162Windows
163-------
164
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000165- Issue #6221: Delete test registry key before running the test.
166
Martin v. Löwis79b13872009-06-01 04:13:14 +0000167- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
168
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000169C-API
170-----
171
172- Issue #5735: Python compiled with --with-pydebug should throw an
173 ImportError when trying to import modules compiled without
174 --with-pydebug, and vice-versa.
175
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000176
Brett Cannonc6d936e2009-06-07 20:09:53 +0000177Build
178-----
179
180- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
181 added LIBS to OS X framework builds.
182
Ronald Oussoren99aab652009-06-08 21:22:57 +0000183- Issue #5809: Specifying both --enable-framework and --enable-shared is
184 an error. Configure now explicity tells you about this.
185
186
Brett Cannonc6d936e2009-06-07 20:09:53 +0000187
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000188What's New in Python 3.1 release candidate 1?
189=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000190
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000191*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000192
193Core and Builtins
194-----------------
195
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000196- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
197 of the command line.
198
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000199- Issue #6012: Add cleanup support to O& argument parsing.
200
Eric Smith41669ca2009-05-23 14:23:22 +0000201- Issue #6089: Fixed str.format with certain invalid field specifiers
202 that would raise SystemError.
203
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000204- Issue #5982: staticmethod and classmethod now expose the wrapped
205 function with __func__.
206
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000207- Added support for multiple context managers in the same with-statement.
208 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000209
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000210- Issue #5829: complex("1e500") no longer raises OverflowError. This
211 makes it consistent with float("1e500") and interpretation of real
212 and imaginary literals.
213
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000214- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
215
R. David Murraydd226ea2009-05-13 12:27:21 +0000216- Issue #5994: the marshal module now has docstrings.
217
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000218- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
219 (1) inf and nan strings with trailing whitespace were incorrectly
220 rejected; (2) parsing of strings representing infinities and nans
221 was locale aware; and (3) the interpretation of fromhex('-nan')
222 didn't match that of float('-nan').
223
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000224Library
225-------
226
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000227- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
228
R. David Murrayfb123912009-05-28 18:19:00 +0000229- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
230
R. David Murray1f1b9d32009-05-27 20:56:59 +0000231- Issue #6121: pydoc now ignores leading and trailing spaces in the
232 argument to the 'help' function.
233
Georg Brandlfaf41492009-05-26 18:31:11 +0000234- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
235 arguments for strings with a space in them.
236
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000237- collections.namedtuple() was not working with the following field
238 names: cls, self, tuple, itemgetter, and property.
239
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000240- In unittest, using a skipping decorator on a class is now equivalent to
241 skipping every test on the class. The ClassTestSuite class has been removed.
242
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000243- Issue #6050: Don't fail extracting a directory from a zipfile if
244 the directory already exists.
245
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000246- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
247 than an int, which makes some operations possible under 64-bit Linux (e.g.
248 DN_MULTISHOT with F_NOTIFY).
249
Antoine Pitrou716c4442009-05-23 19:04:03 +0000250- Issue #5761: Add the name of the underlying file to the repr() of various
251 IO objects.
252
R. David Murraycaa27b72009-05-23 18:49:56 +0000253- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
254 by Musashi Tamura, tests by Marcin Bachry.
255
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000256- Issue #1983: Fix functions taking or returning a process identifier to use
257 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
258 a process identifier type wider than the standard C integer type.
259
R. David Murray87e20742009-05-23 01:30:26 +0000260- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
261 Patch by Farhan Ahmad, test by Marcin Bachry.
262
Antoine Pitrou6e610062009-05-15 17:04:50 +0000263- Issue #2116: Weak references and weak dictionaries now support copy()ing and
264 deepcopy()ing.
265
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000266- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
267
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000268- Issue #5918: Fix a crash in the parser module.
269
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000270- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
271
Antoine Pitroue4501852009-05-14 18:55:55 +0000272- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
273 library. This means, for example, that opening an UTF-16 text file in
274 append mode doesn't add a BOM at the end of the file if the file isn't
275 empty.
276
R. David Murray74b89242009-05-13 17:33:03 +0000277- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
278 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
279 corrects a pydoc regression.
280
R. David Murray99352742009-05-07 18:24:38 +0000281- Issue 5955: aifc's close method did not close the file it wrapped,
282 now it does. This also means getfp method now returns the real fp.
283
Benjamin Peterson932073a2009-05-23 16:14:33 +0000284Installation
285------------
286
287- Issue #6047: fullinstall has been removed because Python 3's executable will
288 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000289
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000290- Lib/smtpd.py is no longer installed as a script.
291
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000292Extension Modules
293-----------------
294
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000295- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000296
Martin v. Löwise23c8682009-05-29 16:01:34 +0000297- Issue #4873: Fix resource leaks in error cases of pwd and grp.
298
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000299- Issue #6093: Fix off-by-one error in locale.strxfrm.
300
Benjamin Peterson744af442009-05-23 18:51:49 +0000301- The _functools and _locale modules are now built into the libpython shared
302 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000303
Antoine Pitrou20327222009-05-24 20:39:11 +0000304Build
305-----
306
307- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
308 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
309 Clinton Roy.
310
Brett Cannon1262e7c2009-05-11 01:47:11 +0000311Tests
312-----
313
314- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
315 tests on darwin even when the OS was installed on a case-sensitive
316 filesystem. Also fixed tests that should not be run when
317 sys.dont_write_bytecode is true.
318
319
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000320What's New in Python 3.1 beta 1?
321================================
322
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000323*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000324
325Core and Builtins
326-----------------
327
Mark Dickinson865e01a2009-05-07 16:37:01 +0000328- Issue #5914: Add new C API function PyOS_string_to_double, and
329 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
330
Eric Smith741191f2009-05-06 13:08:15 +0000331- Issue #3382: float.__format__, complex.__format__, and %-formatting
332 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
333 affects nan -> NAN and inf -> INF.
334
Mark Hammond5a607a32009-05-06 08:04:54 +0000335- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
336 in all operations, including splitdrive, split, etc. splitunc() now issues
337 a PendingDeprecation warning.
338
Eric Smith63376222009-05-05 14:04:18 +0000339- Issue #5920: For float.__format__, change the behavior with the
340 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
341 to be like 'g' but with at least one decimal point and with a
342 default precision of 12. Previously, the behavior the same but with
343 a default precision of 6. This more closely matches str(), and
344 reduces surprises when adding alignment flags to the empty
345 presentation type. This also affects the new complex.__format__ in
346 the same way.
347
Martin v. Löwis011e8422009-05-05 04:43:17 +0000348- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
349
R. David Murrayb18500d2009-05-04 22:59:07 +0000350- Issue #5890: in subclasses of 'property' the __doc__ attribute was
351 shadowed by classtype's, even if it was None. property now
352 inserts the __doc__ into the subclass instance __dict__.
353
Antoine Pitrou244651a2009-05-04 18:56:13 +0000354- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
355 sequences. Patch by Nick Barnes and Victor Stinner.
356
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000357- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000358
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000359- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
360 received a new method, detach(). detach() disconnects the underlying stream
361 from the buffer or text IO and returns it.
362
Mark Dickinson33841c32009-05-01 15:37:04 +0000363- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
364 floats with absolute value over 1e50. Also remove length
365 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
366 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000367
Eric Smith741191f2009-05-06 13:08:15 +0000368- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000369 format(complex(1, 2./3), '.5') now produces a sensible result.
370
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000371- Issue #5864: Fix empty format code formatting for floats so that it
372 never gives more than the requested number of significant digits.
373
Eric Smith6dc46f52009-04-27 20:39:49 +0000374- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
375 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
376
Eric Smithcc32a112009-04-26 21:35:14 +0000377- Issue #5835: Deprecate PyOS_ascii_formatd.
378
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000379- Issue #4971: Fix titlecase for characters that are their own
380 titlecase, but not their own uppercase.
381
Benjamin Peterson193152c2009-04-25 01:08:45 +0000382- Issue #5283: Setting __class__ in __del__ caused a segfault.
383
Mark Dickinsonad476da2009-04-23 19:14:16 +0000384- Issue #5816: complex(repr(z)) now recovers z exactly, even when
385 z involves nans, infs or negative zeros.
386
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000387- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000388
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000389- Issue #1869 (and many duplicates): make round(x, n) correctly
390 rounded for a float x, by using the decimal <-> binary conversions
391 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
392 consistently agrees with format(x, '.2f').
393
Benjamin Petersonae937c02009-04-18 20:54:08 +0000394- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
395 some builtin types.
396
Eric Smith0923d1d2009-04-16 20:16:10 +0000397- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
398
Eric Smith35e84722009-04-16 20:21:28 +0000399- Issue #5515: str.format() type 'n' combined with commas and leading
400 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000401
402- Implement PEP 378, Format Specifier for Thousands Separator, for
403 floats.
404
Mark Dickinson3370cce2009-04-17 22:40:53 +0000405- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000406 1e11, not 1e12. This avoids printing 13 significant digits in
407 situations where only 12 of them are correct. Example problem
408 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
409 long time.)
410
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000411- Issue #1580: On most platforms, use a 'short' float repr: for a
412 finite float x, repr(x) now outputs a string based on the shortest
413 sequence of decimal digits that rounds to x. Previous behaviour was
414 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000415 Another minor difference is that the new repr switches to
416 exponential notation at 1e16 instead of the previous 1e17; this
417 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000418
419 There's a new sys attribute sys.float_repr_style, which takes
420 the value 'short' to indicate that we're using short float repr,
421 and 'legacy' if the short float repr isn't available for one
422 reason or another.
423
424 The float repr change involves incorporating David Gay's 'perfect
425 rounding' code into the Python core (it's in Python/dtoa.c). As a
426 secondary consequence, all string-to-float and float-to-string
427 conversions (including all float formatting operations) will be
428 correctly rounded on these platforms.
429
430 See issue 1580 discussions for details of platforms for which
431 this change does not apply.
432
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000433- Issue #5759: float() didn't call __float__ on str subclasses.
434
Georg Brandlabc38772009-04-12 15:51:51 +0000435- The string.maketrans() function is deprecated; there is a new static method
436 maketrans() on the bytes and bytearray classes. This removes confusion about
437 the types string.maketrans() is supposed to work with, and mirrors the
438 methods available on the str class.
439
R. David Murraydc6da8a2009-04-09 22:16:43 +0000440- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
441 its clarity and its speed.
442
Matthias Klose091c7b12009-04-07 13:24:27 +0000443- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
444 to avoid compiler warnings.
445
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000446- Issue #3739: The unicode-internal encoder now reports the number of characters
447 consumed like any other encoder (instead of the number of bytes).
448
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000449Installation
450------------
451
452- Issue #5756: Install idle and pydoc with a 3 suffix.
453
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000454Library
455-------
456
Martin v. Löwis403117a2009-05-24 19:19:17 +0000457- Issue #5311: bdist_msi can now build packages that do not depend on a
458 specific Python version.
459
Raymond Hettingereb816952009-05-29 01:22:18 +0000460- Issue #5150: IDLE's format menu now has an option to strip trailing
461 whitespace.
462
Vinay Sajipaffbd872009-06-11 10:11:47 +0000463- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000464 the right type checkings anymore.
465
Thomas Heller00cfc372009-05-05 19:04:40 +0000466- Issue #4875: On win32, ctypes.util.find_library does no longer
467 return directories.
468
Georg Brandl243ad662009-05-05 09:00:19 +0000469- Issue #5142: Add the ability to skip modules while stepping to pdb.
470
Georg Brandl991f9202009-05-05 08:31:54 +0000471- Issue #1309567: Fix linecache behavior of stripping subdirectories when
472 looking for files given by a relative filename.
473
Georg Brandleaa84ef2009-05-05 08:14:33 +0000474- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
475 turtle demos in Demo/turtle.
476
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000477- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
478 extracting a file to the root directory.
479
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000480- Issue #5913: os.listdir() should fail for empty path on windows.
481
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000482- Issue #5084: unpickling now interns the attribute names of pickled objects,
483 saving memory and avoiding growth in size of subsequent pickles. Proposal
484 and original patch by Jake McGuire.
485
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000486- The json module now works exclusively with str and not bytes.
487
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000488- Issue #3959: The ipaddr module has been added to the standard library.
489 Contributed by Google.
490
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000491- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
492 error when a named pipe is encountered, rather than blocking infinitely.
493
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000494- Issue #5857: tokenize.tokenize() now returns named tuples.
495
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000496- Issue #4305: ctypes should now build again on mipsel-linux-gnu
497
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000498- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
499 string is already in normalized form, by performing a quick check beforehand.
500 Original patch by Rauli Ruohonen.
501
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000502- Issue #5853: calling a function of the mimetypes module from several threads
503 at once could hit the recursion limit if the mimetypes database hadn't been
504 initialized before.
505
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000506- Issue #5854: Updated __all__ to include some missing names and remove some
507 names which should not be exported.
508
Thomas Heller34596a92009-04-24 20:50:00 +0000509- Issue #3102: All global symbols that the _ctypes extension defines
510 are now prefixed with 'Py' or '_ctypes'.
511
512- Issue #5041: ctypes does now allow pickling wide character.
513
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000514- Issue #5812: For the two-argument form of the Fraction constructor,
515 Fraction(m, n), m and n are permitted to be arbitrary Rational
516 instances.
517
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000518- Issue #5812: Fraction('1e6') is valid: more generally, any string
519 that's valid for float() is now valid for Fraction(), with the
520 exception of strings representing NaNs and infinities.
521
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000522- Issue #5734: BufferedRWPair was poorly tested and had several glaring
523 bugs. Patch by Brian Quinlan.
524
R. David Murray9e94ddf2009-04-13 17:06:33 +0000525- Issue #1161031: fix readwrite select flag handling: POLLPRI now
526 results in a handle_expt_event call, not handle_read_event, and POLLERR
527 and POLLNVAL now call handle_close, not handle_expt_event. Also,
528 dispatcher now has an 'ignore_log_types' attribute for suppressing
529 log messages, which is set to 'warning' by default.
530
Matthias Klosea3d29e82009-04-07 13:13:10 +0000531- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
532 new arguments introduced in 2.5.
533
Walter Dörwald1b08b302009-04-25 14:13:56 +0000534- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
535 makeunicodedata.py and regenerated the Unicode database (This fixes
536 u'\u1d79'.lower() == '\x00').
537
Matthias Klose535336f2009-04-07 13:49:45 +0000538Extension Modules
539-----------------
540
Benjamin Petersone04b6272009-05-04 22:25:21 +0000541- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
542 pwd.
543
Mark Dickinsonea835e72009-04-19 20:40:33 +0000544- Issue #5463: In struct module, remove deprecated float coercion
545 for integer type codes: struct.pack('L', 0.3) should now raise
546 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
547 The version number has been bumped to 0.3.
548
Matthias Klose535336f2009-04-07 13:49:45 +0000549- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
550 using Berkley-DB.
551
Nick Coghlan47384702009-04-22 16:13:36 +0000552Tests
553-----
554
555- Issue #5354: New test support function import_fresh_module() makes
556 it easy to import both normal and optimised versions of modules.
557 test_heapq and test_warnings have been adjusted to use it, tests for
558 other modules with both C and Python implementations in the stdlib
559 can be adjusted to use it over time.
560
Walter Dörwald4ba80132009-04-25 12:48:43 +0000561- Issue #5837: Certain sequences of calls to set() and unset() for
562 support.EnvironmentVarGuard objects restored the environment variables
563 incorrectly on __exit__.
564
Benjamin Petersonb173f782009-05-05 22:31:58 +0000565C-API
566-----
567
568- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
569
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000570
Benjamin Petersond1735892009-03-07 18:46:21 +0000571What's New in Python 3.1 alpha 2?
572=================================
573
Benjamin Peterson88f14352009-04-04 21:06:52 +0000574*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000575
576Core and Builtins
577-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000578
Eric Smith1e1d7d22009-04-03 22:25:33 +0000579- Implement PEP 378, Format Specifier for Thousands Separator, for
580 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000581
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000582- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
583
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000584- Issue #5499: The 'c' code for argument parsing functions now only accepts a
585 byte, and the 'C' code only accepts a unicode character.
586
Georg Brandl406b3d82009-04-11 21:24:37 +0000587- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
588 when hitting the recursion limit under certain circumstances.
589
Brett Cannon0759dd62009-04-01 18:13:07 +0000590- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
591
Georg Brandlab6f2f62009-03-31 04:16:10 +0000592- Fix a segfault when running test_exceptions with coverage, caused by
593 insufficient checks in accessors of Exception.__context__.
594
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000595- Issue #5604: non-ASCII characters in module name passed to
596 imp.find_module() were converted to UTF-8 while the path is
597 converted to the default filesystem encoding, causing nonsense.
598
Benjamin Peterson09832742009-03-26 17:15:46 +0000599- Issue #5126: str.isprintable() returned False for space characters.
600
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000601- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
602 the end sys.path, for compatibility with the system install of Python.
603
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000604- Issue #4688: Add a heuristic so that tuples and dicts containing only
605 untrackable objects are not tracked by the garbage collector. This can
606 reduce the size of collections and therefore the garbage collection overhead
607 on long-running programs, depending on their particular use of datatypes.
608
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000609- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
610 improve its performance. Long divisions and remainder operations
611 are now between 50% and 150% faster.
612
Mark Dickinsonbd792642009-03-18 20:06:12 +0000613- Issue #4258: Make it possible to use base 2**30 instead of base
614 2**15 for the internal representation of integers, for performance
615 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
616 --enable-big-digits option to configure, which overrides the
617 default. Add sys.int_info structseq to provide information about
618 the internal format.
619
Mark Dickinson081dfee2009-03-18 14:47:41 +0000620- Issue #4474: PyUnicode_FromWideChar now converts characters outside
621 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
622 and sizeof(Py_UNICODE) == 2.
623
Eric Smith8ec90442009-03-14 12:29:34 +0000624- Issue #5237: Allow auto-numbered fields in str.format(). For
625 example: '{} {}'.format(1, 2) == '1 2'.
626
Antoine Pitrou652e7072009-03-13 19:25:20 +0000627- Issue #5392: when a very low recursion limit was set, the interpreter would
628 abort with a fatal error after the recursion limit was hit twice.
629
Matthias Klose042f1332009-04-04 14:32:42 +0000630- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
631 short file names.
632
Benjamin Petersond1735892009-03-07 18:46:21 +0000633Library
634-------
635
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000636- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000637 mailbox.MH.get_message().
638
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000639- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
640 error substitutions from non-strict codec error callbacks in
641 incrementalencoder and StreamWriter.
642
Georg Brandl33c28812009-04-01 23:07:29 +0000643- Issue #5656: Fix the coverage reporting when running the test suite with
644 the -T argument.
645
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000646- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
647
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000648- Issue #5624: Fix the _winreg module name still used in several modules.
649
Benjamin Petersona1b49012009-03-31 23:11:32 +0000650- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
651
Jesse Nollera9314042009-03-31 22:36:44 +0000652- Issue #5619: Multiprocessing children disobey the debug flag and causes
653 popups on windows buildbots. Patch applied to work around this issue.
654
Jesse Noller32d68c22009-03-31 18:48:42 +0000655- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
656
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000657- Issue #5387: Fixed mmap.move crash by integer overflow.
658
Jesse Nollerf8d00852009-03-31 03:25:07 +0000659- Issue #5261: Patch multiprocessing's semaphore.c to support context
660 manager use: "with multiprocessing.Lock()" works now.
661
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000662- Issue #5236: Change time.strptime() to only take strings. Didn't work with
663 bytes already but the failure was non-obvious.
664
Jesse Noller7af4ef82009-03-30 16:47:15 +0000665- Issue #5177: Multiprocessing's SocketListener class now uses
666 socket.SO_REUSEADDR on all connections so that the user no longer needs
667 to wait 120 seconds for the socket to expire.
668
Benjamin Peterson48e24782009-03-29 13:02:52 +0000669- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
670
Antoine Pitrou66994e12009-03-29 00:45:26 +0000671- Issue #1174606: Calling read() without arguments of an unbounded file
672 (typically /dev/zero under Unix) could crash the interpreter.
673
Benjamin Peterson59406a92009-03-26 17:10:29 +0000674- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
675 io.BufferedRandom have been deprecated for removal in Python 3.2.
676
Lars Gustäbel42e00912009-03-22 20:34:29 +0000677- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
678 forever on incomplete input. That caused tarfile.open() to hang when used
679 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
680 partial bzip2 compressed data.
681
Mark Dickinson79f52032009-03-17 23:12:51 +0000682- Issue #2110: Add support for thousands separator and 'n' type
683 specifier to Decimal.__format__
684
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000685- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
686 '>' alignment characters.
687
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000688- The error detection code in FileIO.close() could fail to reflect the `errno`
689 value, and report it as -1 instead.
690
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000691- Issue #5016: FileIO.seekable() could return False if the file position
692 was negative when truncated to a C int. Patch by Victor Stinner.
693
Mark Dickinsonae681df2009-03-21 10:26:31 +0000694Extension Modules
695-----------------
696
Benjamin Petersone099b372009-04-04 17:09:35 +0000697- Issue #5391: mmap now deals exclusively with bytes.
698
Mark Dickinsonae681df2009-03-21 10:26:31 +0000699- Issue #5463: In struct module, remove deprecated overflow wrapping
700 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000701 struct.error instead of returning b'\xff\xff\xff\xff'. The
702 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
703 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000704
Benjamin Petersond1735892009-03-07 18:46:21 +0000705
Benjamin Petersona58a6262009-03-07 16:34:40 +0000706What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000707================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000708
Benjamin Petersona58a6262009-03-07 16:34:40 +0000709*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000710
711Core and Builtins
712-----------------
713
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000714- The io module has been reimplemented in C for speed.
715
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000716- Give dict views an informative __repr__.
717
Eric Smith5e5c0db2009-02-20 14:25:03 +0000718- Issue #5247: Improve error message when unknown format codes are
719 used when using str.format() with str, int, and float arguments.
720
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000721- Issue #5249: time.strftime returned malformed string when format string
722 contained non ascii character on windows.
723
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000724- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
725 source has already been decoded into str.
726
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000727- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
728 rotating the object pointer by 4 bits to the right.
729
Mark Dickinson87ec0852009-02-09 17:15:59 +0000730- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
731 it now forces its argument to double before testing for infinity.
732
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000733- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
734 returns a non-number type.
735
Benjamin Peterson87618552009-02-08 15:00:52 +0000736- Issue #5182: Removed memoryview.__str__.
737
Mark Dickinsonc008a172009-02-01 13:59:22 +0000738- Issue #1717: Removed builtin cmp() function, dropped tp_compare
739 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000740 the type definition cmpfunc. The tp_compare slot has been renamed
741 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000742
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000743- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000744 were suppressing all exceptions. These include list() and bytearray().
745
Mark Dickinson1124e712009-01-28 21:25:58 +0000746- Issue #4707: round(x, n) now returns an integer if x is an integer.
747 Previously it returned a float.
748
Antoine Pitroub52ec782009-01-25 16:34:23 +0000749- Issue #4753: By enabling a configure option named '--with-computed-gotos'
750 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
751 evaluation loop is compiled with a new dispatch mechanism which gives
752 speedups of up to 20%, depending on the system, on various benchmarks.
753
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000754- Issue #4874: Most builtin decoders now reject unicode input.
755
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000756- Issue #4842: Don't allow trailing 'L' when constructing an integer
757 from a string.
758
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000759- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
760
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000761- Issue #4838: When a module is deallocated, free the memory backing the
762 optional module state data.
763
Mark Dickinson8055afd2009-01-17 10:04:45 +0000764- Issue #4910: Rename nb_long slot to nb_reserved, and change its
765 type to (void *).
766
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000767- Issue #4935: The overflow checking code in the expandtabs() method common
768 to str, bytes and bytearray could be optimized away by the compiler, letting
769 the interpreter segfault instead of raising an error.
770
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000771- Issue #3720: Fix a crash when an iterator modifies its class and removes its
772 __next__ method.
773
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000774- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
775 function no longer attempt to call the __long__ slot to convert an object
776 to an integer. Only the __int__ and __trunc__ slots are examined.
777
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000778- Issue #4893: Use NT threading on CE.
779
Martin v. Löwisec59d042009-01-12 07:59:10 +0000780- Issue #4915: Port sysmodule to Windows CE.
781
Antoine Pitrouab868312009-01-10 15:40:25 +0000782- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
783 common cases are optimized thanks to a dedicated fast path and a moderate
784 amount of loop unrolling.
785
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000786- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
787 collecting the oldest generation) so that allocating lots of objects without
788 destroying them does not show quadratic performance. Based on a proposal by
789 Martin von Löwis at
790 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
791
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000792- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000793 having been closed (for instance, a read() call could return some
794 previously buffered data). Patch by Dmitry Vasiliev.
795
Antoine Pitrou05608432009-01-09 18:53:14 +0000796- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
797 flag to work properly. Furthermore, when specifying -u, the text stdout
798 and stderr streams have line-by-line buffering enabled (the default being
799 to buffer arbitrary chunks of data).
800
Raymond Hettinger35631532009-01-09 03:58:09 +0000801- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
802 instead of ints (reducing its size from 4 to 8 times thereby reducing
803 Python's overall memory).
804
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000805- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
806 an existing .py counterpart, override the co_filename attributes of all
807 code objects if the original filename is obsolete (which can happen if the
808 file has been renamed, moved, or if it is accessed through different paths).
809 Patch by Ziga Seilnacht and Jean-Paul Calderone.
810
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000811- Issue #4580: Fix slicing of memoryviews when the item size is greater than
812 one byte. Also fixes the meaning of len() so that it returns the number of
813 items, rather than the size in bytes.
814
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000815- Issue #4075: Use OutputDebugStringW in Py_FatalError.
816
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000817- Issue #4747: When the terminal does not use utf-8, executing a script with
818 non-ascii characters in its name could fail with a "SyntaxError: None" error.
819
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000820- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000821 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000822
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000823- Issue #3680: Reference cycles created through a dict, set or deque iterator
824 did not get collected.
825
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000826- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
827 where the tp_hash and tp_dict slots are both NULL.
828
Georg Brandlccc47b62008-12-28 11:44:14 +0000829- Issue #4759: None is now allowed as the first argument of
830 bytearray.translate(). It was always allowed for bytes.translate().
831
Skip Montanaro80072cb2008-12-23 03:51:14 +0000832- Added test case to ensure attempts to read from a file opened for writing
833 fail.
834
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000835- Issue #3106: Speedup some comparisons (str/str and int/int).
836
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000837- Issue #2183: Simplify and optimize bytecode for list, dict and set
838 comprehensions. Original patch for list comprehensions by Neal Norwitz.
839
Antoine Pitrou621601a2008-12-17 23:18:19 +0000840- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
841 print elapsed times, not only when some objects are uncollectable /
842 unreachable. Original patch by Neil Schemenauer.
843
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000844- Issue #3439: Add a bit_length method to int.
845
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000846- Issue #2173: When getting device encoding, check that return value of
847 nl_langinfo is not the empty string. This was causing silent build
848 failures on OS X.
849
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000850- Issue #4597: Fixed several opcodes that weren't always propagating
851 exceptions.
852
853- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000854 context manager returns a value that cannot be converted to a bool.
855
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000856- Issue #4445: Replace "sizeof(PyBytesObject)" with
857 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
858 bytes instances. On a typical machine this saves 3 bytes of memory
859 (on average) per allocation of a bytes instance.
860
Christian Heimesa872de52008-12-05 08:26:55 +0000861- Issue #4533: File read operation was dreadfully slow due to a slowly
862 growing read buffer. Fixed by using the same growth rate algorithm as
863 Python 2.x.
864
Antoine Pitrou5504e892008-12-06 21:27:53 +0000865- Issue #4509: Various issues surrounding resize of bytearray objects to
866 which there are buffer exports (e.g. memoryview instances).
867
Georg Brandlf9734072008-12-07 15:30:06 +0000868- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
869 method on file objects with closefd=False. The file descriptor is still
870 kept open but the file object behaves like a closed file. The ``FileIO``
871 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000872
Antoine Pitroubc420402008-12-07 20:14:49 +0000873- Issue #4569: Interpreter crash when mutating a memoryview with an item size
874 larger than 1.
875
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000876- Issue #4748: Lambda generators no longer return a value.
877
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000878- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
879
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000880- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
881 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
882 step. This avoids problems with counting UTF-8 bytes that ignores the effect
883 of using the replace error handler in PyUnicode_DecodeUTF8().
884
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000885Library
886-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000887
Tarek Ziadédd07ebb2009-07-06 13:52:17 +0000888- Issue #6377: Enabled the compiler option, and deprecate its usage as an
889 attribute.
890
Tarek Ziadé05bf01a2009-07-04 02:04:21 +0000891- Issue #6413: Fixed the log level in distutils.dist for announce.
892
Tarek Ziadée10d6de2009-07-03 08:33:28 +0000893- Issue #6403: Fixed package path usage in build_ext.
894
Tarek Ziadé0156f912009-06-29 16:19:22 +0000895- Issue #6365: Distutils build_ext inplace mode was copying the compiled
896 extension in a subdirectory if the extension name had dots.
897
Tarek Ziadé8f480e52009-06-28 21:30:52 +0000898- Issue #6164: Added an AIX specific linker argument in Distutils
899 unixcompiler. Original patch by Sridhar Ratnakumar.
900
Tarek Ziadé25bd2062009-06-28 21:26:27 +0000901- Issue #6286: Now Distutils upload command is based on urllib2 instead of
902 httplib, allowing the usage of http_proxy.
903
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000904- Issue #6287: Added the license field in Distutils documentation.
905
Tarek Ziadéff543362009-06-11 09:25:41 +0000906- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
907
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000908- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
909 in Makefiles. This prevents compile errors when using syntax like:
910 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
911
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +0000912- Issue #6131: test_modulefinder leaked when run after test_distutils.
913 Patch by Hirokazu Yamamoto.
914
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000915- Issue #6048: Now Distutils uses the tarfile module in archive_util.
916
Vinay Sajipaffbd872009-06-11 10:11:47 +0000917- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +0000918 and tests on pywin32 by Tim Golden.
919
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000920- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
921
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000922- Issue #6046: Fixed the library extension when distutils build_ext is used
923 inplace. Initial patch by Roumen Petrov.
924
Vinay Sajipaffbd872009-06-11 10:11:47 +0000925- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000926 subcommand.
927
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000928- Issue #6022: a test file was created in the current working directory by
929 test_get_outputs in Distutils.
930
Tarek Ziadéff0e5002009-05-12 17:14:01 +0000931- Issue #5977: distutils build_ext.get_outputs was not taking into account the
932 inplace option. Initial patch by kxroberto.
933
Tarek Ziadé06fbee12009-05-10 10:34:01 +0000934- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
935 for old-style extensions.
936
Tarek Ziadébe5b1b92009-05-09 10:09:11 +0000937- Issue #5976: Fixed Distutils test_check_environ.
938
Tarek Ziadé5662d3e2009-05-07 21:24:43 +0000939- Issue #5941: Distutils build_clib command was not working anymore because
940 of an incomplete costumization of the archiver command. Added ARFLAGS in the
941 Makefile besides AR and make Distutils use it. Original patch by David
942 Cournapeau.
943
R. David Murrayb507d2e2009-04-29 15:34:32 +0000944- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
945
Vinay Sajipaffbd872009-06-11 10:11:47 +0000946- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +0000947 anymore.
948
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000949- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000950 sysconfig.get_config_vars.
951
Tarek Ziadé23336082009-04-25 12:39:56 +0000952- Issue #4951: Fixed failure in test_httpservers.
953
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000954- Issue #5795: Fixed test_distutils failure on Debian ppc.
955
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000956- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
957
Georg Brandl1f9fa312009-04-27 16:42:58 +0000958- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
959 a value in SafeConfigParser.
960
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000961- Issue #5732: added a new command in Distutils: check.
962
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000963- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000964 platforms. Initial patch by Paul Moore.
965
Tarek Ziadéf6370502009-04-05 22:57:21 +0000966- Issue #5095: Added bdist_msi to the list of bdist supported formats.
967 Initial fix by Steven Bethard.
968
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000969- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
970 Initial fix by Wayne Davison.
971
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000972- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000973
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000974- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000975
Brett Cannonf47e84c2009-04-01 16:06:01 +0000976- Issue #1665206 (partially): Move imports in cgitb to the top of the module
977 instead of performing them in functions. Helps prevent import deadlocking in
978 threads.
979
R. David Murraye59482e2009-04-01 03:42:00 +0000980- Issue #2522: locale.format now checks its first argument to ensure it has
981 been passed only one pattern, avoiding mysterious errors where it appeared
982 that it was failing to do localization.
983
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000984- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
985 Brandl.
986
Antoine Pitrou350370c2009-03-14 00:13:13 +0000987- Issue #1222: locale.format() bug when the thousands separator is a space
988 character.
989
Tarek Ziadé516db942009-03-11 12:52:00 +0000990- Issue #5472: Fixed distutils.test_util tear down. Original patch by
991 Tim Golden.
992
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000993- collections.deque() objects now have a read-only attribute called maxlen.
994
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000995- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
996 it is has been populated and properly configured in order to prevent
997 window flashing.
998
Guilherme Polo56f5be52009-03-07 01:54:57 +0000999- Issue #4792: Prevent a segfault in _tkinter by using the
1000 guaranteed to be safe interp argument given to the PythonCmd in place of
1001 the Tcl interpreter taken from a PythonCmd_ClientData.
1002
1003- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1004
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001005- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1006 Original patch by Akira Kitada.
1007
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001008- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1009
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001010- Issue #5385: Fixed mmap crash after resize failure on windows.
1011
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001012- Issue #5179: Fixed subprocess handle leak on failure on windows.
1013
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001014- PEP 372: Added collections.OrderedDict().
1015
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001016- The _asdict() for method for namedtuples now returns an OrderedDict().
1017
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001018- configparser now defaults to using an ordered dictionary.
1019
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001020- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1021 import guess_extension`` was used.
1022
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001023- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1024 with same tagname but larger size than first map. (Windows)
1025
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001026- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1027 overrun.
1028
Tarek Ziadéf0721222009-02-28 10:16:43 +00001029- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1030 bdist_rpm command.
1031
1032- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1033
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001034- Issue #5052: make Distutils compatible with 2.3 again.
1035
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001036- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1037 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001038
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001039- Issue #5287: Add exception handling around findCaller() call to help out
1040 IronPython.
1041
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001042- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1043 The file was resized to wrong size.
1044
1045- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1046
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001047- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001048 from the package_data and the data_files metadata.
1049
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001050- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001051 support.TempdirManager, to avoid writing in the tests directory.
1052
Tarek Ziadé68c50952009-02-13 23:04:17 +00001053- Issue #4524: distutils build_script command failed with --with-suffix=3.
1054 Initial patch by Amaury Forgeot d'Arc.
1055
Tarek Ziadé811d6242009-02-13 22:26:15 +00001056- Issue #2461: added tests for distutils.util
1057
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001058- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1059 which inherited from numbers.py which did not have __slots__ defined. The
1060 numbers hierarchy now has its own __slots__ declarations.
1061
Antoine Pitroub353c122009-02-11 00:39:14 +00001062- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1063 encoding.
1064
Thomas Heller465c8022009-02-10 18:59:04 +00001065- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1066 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1067
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001068- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1069 under NT and OS2. Patch by Philip Jenvey.
1070
Brett Cannonbefb14f2009-02-10 02:10:16 +00001071- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1072 to be recreated. This avoids a timing hole thanks to the old reliance on the
1073 ctime of the files involved.
1074
Guilherme Polob681df42009-02-09 22:33:59 +00001075- Issue #5122: Synchronize tk load failure check to prevent a potential
1076 deadlock.
1077
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001078- Issue #1818: collections.namedtuple() now supports a keyword argument
1079 'rename' which lets invalid fieldnames be automatically converted to
1080 positional names in the form, _1, _2, ...
1081
Guilherme Poloae098992009-02-09 16:44:24 +00001082- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1083
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001084- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1085 public documented method ``ZipImporter.get_filename()``.
1086
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001087- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1088 the execution of packages by looking for and executing a ``__main__``
1089 submodule when a package name is supplied. Initial patch by Andi
1090 Vajda.
1091
Guilherme Polo491aee22009-02-06 23:16:11 +00001092- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1093 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1094 Tkapp_Call when calling from a thread different than the one that created
1095 the Tcl interpreter. Patch by Robert Hancock.
1096
Eric Smith0e5b5622009-02-06 01:32:42 +00001097- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1098 Ross Light.
1099
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001100- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001101 environment/Makefile. Patch by Douglas Greiman.
1102
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001103- Issue #1276768: The verbose option was not used in the code of
1104 distutils.file_util and distutils.dir_util.
1105
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001106- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001107 --enabled-shared activated. Initial patch by Dave Peterson.
1108
Guilherme Polo7f423952009-02-02 21:17:09 +00001109- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1110
Raymond Hettinger85602262009-02-03 04:19:10 +00001111- The shelve module now defaults to pickle protocol 3.
1112
Brett Cannone61426e2009-01-30 01:31:34 +00001113- Fix a bug in the trace module where a bytes object from co_lnotab had its
1114 items being passed through ord().
1115
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001116- Issue #2047: shutil.move() could believe that its destination path was
1117 inside its source path if it began with the same letters (e.g. "src" vs.
1118 "src.new").
1119
Guilherme Polo5f238482009-01-28 14:41:10 +00001120- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1121
Raymond Hettinger89e12962009-01-26 02:09:03 +00001122- Removed isSequenceType(), isMappingType, and isNumberType() from the
1123 operator module; use the abstract base classes instead. Also removed
1124 the repeat() function; use mul() instead.
1125
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001126- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001127 collections.namedtuple() relied on __name__ being defined.
1128
1129- Backport importlib from Python 3.1. Only the import_module() function has
1130 been backported to help facilitate transitions from 2.7 to 3.1.
1131
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001132- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1133 the tar file was overriden by the gztar one.
1134
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001135- Issue #4863: distutils.mwerkscompiler has been removed.
1136
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001137- Added a new itertools functions: combinations_with_replacement()
1138 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001139
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001140- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001141 allowed non-integer arguments.
1142
Jesse Noller41faa542009-01-25 03:45:53 +00001143- Fix and properly document the multiprocessing module's logging
1144 support, expose the internal levels and provide proper usage
1145 examples.
1146
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001147- Issue #1672332: fix unpickling of subnormal floats, which was
1148 producing a ValueError on some platforms.
1149
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001150- Issue #3881: Help Tcl to load even when started through the
1151 unreadable local symlink to "Program Files" on Vista.
1152
Martin v. Löwis59e47792009-01-24 14:10:07 +00001153- Issue #4710: Extract directories properly in the zipfile module;
1154 allow adding directories to a zipfile.
1155
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001156- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001157 --without-threads argument. When this occurs, _multiprocessing will
1158 be disabled, and not compiled.
1159
Antoine Pitrou08838b62009-01-21 00:55:13 +00001160- Issue #5008: When a file is opened in append mode with the new IO library,
1161 do an explicit seek to the end of file (so that e.g. tell() returns the
1162 file size rather than 0). This is consistent with the behaviour of the
1163 traditional 2.x file object.
1164
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001165- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1166 parameter was set.
1167
Mark Dickinson8dd05142009-01-20 20:43:58 +00001168- Issue #4842: Always append a trailing 'L' when pickling longs using
1169 pickle protocol 0. When reading, the 'L' is optional.
1170
Brett Cannonafccd632009-01-20 02:21:27 +00001171- Add the importlib package.
1172
Jesse Noller9a0fc972009-01-18 21:12:58 +00001173- Issue #4301: Patch the logging module to add processName support, remove
1174 _check_logger_class from multiprocessing.
1175
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001176- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001177 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001178
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001179- Issue #4959: inspect.formatargspec now works for keyword only arguments
1180 without defaults.
1181
Jesse Noller6214edd2009-01-19 16:23:53 +00001182- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1183 for *nix machines for negative handles and large int handles. Without this check
1184 it is possible to segfault the interpreter.
1185
Jesse Nollerb0516a62009-01-18 03:11:38 +00001186- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1187 in sharedctypes.py.
1188
1189- Issue #1225107: inspect.isclass() returned True for instances with a custom
1190 __getattr__.
1191
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001192- Issue #3826 and #4791: The socket module now closes the underlying socket
1193 appropriately when it is being used via socket.makefile() objects
1194 rather than delaying the close by waiting for garbage collection to do it.
1195
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001196- Issue #1696199: Add collections.Counter() for rapid and convenient
1197 counting.
1198
Antoine Pitrou308705e2009-01-10 16:22:51 +00001199- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1200
Thomas Heller5e4e4272009-01-08 09:34:20 +00001201- Issue #4867: Fixed a crash in ctypes when passing a string to a
1202 function without defining argtypes.
1203
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001204- Issue #4272: Add an optional argument to the GzipFile constructor to override
1205 the timestamp in the gzip stream. The default value remains the current time.
1206 The information can be used by e.g. gunzip when decompressing. Patch by
1207 Jacques Frechet.
1208
Mark Dickinson315a20a2009-01-04 21:34:18 +00001209- Restore Python 2.3 compatibility for decimal.py.
1210
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001211- Issue #3638: Remove functions from _tkinter module level that depend on
1212 TkappObject to work with multiple threads.
1213
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001214- Issue #4718: Adapt the wsgiref package so that it actually works with
1215 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001216 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1217
Raymond Hettinger771ed762009-01-03 19:20:32 +00001218- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1219 to the decimal module.
1220
Georg Brandl3a9b0622009-01-03 22:07:57 +00001221- Fractions.from_float() no longer loses precision for integers too big to
1222 cast as floats.
1223
Mark Dickinsonf9236412009-01-02 23:23:21 +00001224- Issue #4812: add missing underscore prefix to some internal-use-only
1225 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1226
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001227- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001228 did unnecessary work in the common case where no key function was specified.
1229
Georg Brandlb1441c72009-01-03 22:33:39 +00001230- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1231 the function is not a generator.
1232
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001233- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1234 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001235
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001236- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001237 function. Original patch by Thomas Heller.
1238
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001239- Issue #3767: Convert Tk object to string in tkColorChooser.
1240
Martin v. Löwise354d782008-12-29 16:03:04 +00001241- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1242
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001243- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1244 the code under test can be written inline if more practical.
1245
Georg Brandldb7b6b92009-01-01 15:53:14 +00001246- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1247 works as expected in the interactive environment.
1248
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001249- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1250 Gabriel Genellina.
1251
Antoine Pitrou180a3362008-12-14 16:36:46 +00001252- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1253 boundary.
1254
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001255- Issue #4223: inspect.getsource() will now correctly display source code
1256 for packages loaded via zipimport (or any other conformant PEP 302
1257 loader). Original patch by Alexander Belopolsky.
1258
1259- Issue #4201: pdb can now access and display source code loaded via
1260 zipimport (or any other conformant PEP 302 loader). Original patch by
1261 Alexander Belopolsky.
1262
1263- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1264 302 conformant loader) will now work correctly in most cases (they
1265 are still subject to the constraints that exist for all code running
1266 from inside a module loaded via a PEP 302 loader and attempting to
1267 perform IO operations based on __file__). Original patch by
1268 Alexander Belopolsky.
1269
1270- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1271 allows backporting to maintenance branches. Original patch by
1272 Alexander Belopolsky.
1273
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001274- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1275 a non-ASCII letter.
1276
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001277- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1278
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001279- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1280 codec cannot be found. This is for compatibility with the builtin behavior.
1281
Facundo Batista708d5812008-12-11 04:20:07 +00001282- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1283 give correct results in the case where one argument is a quiet NaN
1284 and the other is a finite number that requires rounding.
1285
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001286- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1287 libs.
1288
Georg Brandlf9734072008-12-07 15:30:06 +00001289- Added the subprocess.check_call_output() convenience function to get output
1290 from a subprocess on success or raise an exception on error.
1291
1292- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1293 support unusual filenames (such as those containing semi-colons) in
1294 Content-Disposition headers.
1295
1296- Issue #4384: Added logging integration with warnings module using
1297 captureWarnings(). This change includes a NullHandler which does nothing;
1298 it will be of use to library developers who want to avoid the "No handlers
1299 could be found for logger XXX" message which can appear if the library user
1300 doesn't configure logging.
1301
1302- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1303 exception.
1304
Georg Brandleee31162008-12-07 15:15:22 +00001305- Issue #4529: fix the parser module's validation of try-except-finally
1306 statements.
1307
1308- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1309 not a malformed option.
1310
1311- Added the subprocess.check_output() convenience function to get output
1312 from a subprocess on success or raise an exception on error.
1313
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001314- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1315 the corresponding tests now pass.
1316
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001317- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1318 it was calling the wrong open() function.
1319
Fred Drake9a0a65b2008-12-04 19:24:50 +00001320- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1321 support unusual filenames (such as those containing semi-colons) in
1322 Content-Disposition headers.
1323
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001324- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1325 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1326
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001327- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1328 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1329 and getservbyport().
1330
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001331- Windows locale mapping updated to Vista.
1332
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001333Tools/Demos
1334-----------
1335
Antoine Pitrou8a681222009-02-07 17:13:31 +00001336- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1337 and make it 2.6-compatible.
1338
Guilherme Poloa7d27972009-01-28 16:06:51 +00001339- Ttk demos added in Demo/tkinter/ttk/
1340
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001341- Issue #4677: add two list comprehension tests to pybench.
1342
Georg Brandlb1441c72009-01-03 22:33:39 +00001343
1344Build
1345-----
1346
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001347- Issue #6094: Build correctly with Subversion 1.7.
1348
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001349- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1350
Antoine Pitrou8966c992009-05-01 21:18:27 +00001351- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1352 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1353
Matthias Klose55708cc2009-04-30 08:06:49 +00001354- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001355 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001356
Matthias Klose906785c2009-02-22 23:18:38 +00001357- Link the shared python library with $(MODLIBS).
1358
Martin v. Löwis11f72102009-02-10 13:13:30 +00001359- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1360
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001361- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1362
Martin v. Löwise97637d2009-01-11 09:45:11 +00001363- Issue #4895: Use _strdup on Windows CE.
1364
Georg Brandlb1441c72009-01-03 22:33:39 +00001365- Issue #4472: "configure --enable-shared" now works on OSX
1366
1367- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1368
1369- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1370
1371- Issue #4289: Remove Cancel button from AdvancedDlg.
1372
1373- Issue #1656675: Register a drop handler for .py* files on Windows.
1374
1375- Issue #4120: Exclude manifest from extension modules in VS2008.
1376
1377- Issue #4091: Install pythonxy.dll in system32 again.
1378
1379- Issue #4018: Disable "for me" installations on Vista.
1380
1381- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1382
1383- Issue #4204: Fixed module build errors on FreeBSD 4.
1384
1385
1386C-API
1387-----
1388
Mark Dickinson21776072009-02-10 16:13:25 +00001389- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1390 for negative arguments. Previously, it raised TypeError.
1391
Georg Brandlb1441c72009-01-03 22:33:39 +00001392- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1393
1394- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1395 the GIL is released, or owned by another thread.
1396
1397- Issue #4122: On Windows, fix a compilation error when using the
1398 Py_UNICODE_ISSPACE macro in an extension module.
1399
1400
Mark Dickinsone675f082008-12-11 21:56:00 +00001401Extension Modules
1402-----------------
1403
Gregory P. Smith365a1862009-02-12 07:35:29 +00001404- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1405 supporting objects as input no matter how it was compiled (built in
1406 implementations or external openssl library).
1407
Mark Dickinson29500f62009-01-15 15:36:10 +00001408- Issue #4397: Fix occasional test_socket failure on OS X.
1409
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001410- Issue #4279: Fix build of parsermodule under Cygwin.
1411
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001412- Issue #4751: hashlib now releases the GIL when hashing large buffers
1413 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1414 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1415
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001416- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1417
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001418- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1419 or decompress several streams at once on multi-CPU systems. Also, the GIL
1420 is now released when computing the CRC of a large buffer. Patch by ebfe.
1421
Georg Brandlb1441c72009-01-03 22:33:39 +00001422- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1423
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001424- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1425
Mark Dickinsone675f082008-12-11 21:56:00 +00001426- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1427 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001428
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001429- Issue #4583: array.array would not always prohibit resizing when a buffer
1430 has been exported, resulting in an interpreter crash when accessing the
1431 buffer.
1432
Martin v. Löwis841edad2008-11-30 10:36:49 +00001433
Jack Diederiche0cbd692009-04-01 04:27:09 +00001434- Issue #5228: Make functools.partial objects can now be pickled.
1435
Guilherme Polo9de29af2009-01-28 20:40:48 +00001436Tests
1437-----
1438
Antoine Pitrou88909542009-06-29 13:54:42 +00001439- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1440 regression tests in parallel, shortening the total runtime.
1441
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001442- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1443 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1444 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1445 skip the tests if DISPLAY is defined but can't be used.
1446
R. David Murraya21e4ca2009-03-31 23:16:50 +00001447- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001448 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001449 from test support, which does the conversion.
1450
Guilherme Polo9de29af2009-01-28 20:40:48 +00001451- Issue #5083: New 'gui' resource for regrtest.
1452
1453
Brett Cannon7317c1e2008-11-25 19:19:17 +00001454Docs
1455----
1456
Georg Brandl52b92cc2008-05-25 09:43:03 +00001457
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001458**(For information about older versions, consult the HISTORY file.)**