blob: f7c1302c48de844d9644421619282cd4b084b0e2 [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 Petersone8fb2032009-06-27 22:03:18 +00007What's New in Python 3.1.1?
8===========================
9
Mark Dickinsonb5b36782009-08-02 11:09:35 +000010*Release date: XX-XX-XXXX*
Benjamin Petersone8fb2032009-06-27 22:03:18 +000011
12Core and Builtins
13-----------------
14
Georg Brandl069bcc32009-07-22 12:06:11 +000015- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
16
Raymond Hettinger63853bb2009-07-27 20:29:18 +000017- Issue #6573: set.union() stopped processing inputs if an instance of self
18 occurred in the argument chain.
19
R. David Murray10fc3952009-07-19 02:25:02 +000020- Issue #6070: On posix platforms import no longer copies the execute bit
21 from the .py file to the .pyc file if it is set.
22
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +000023- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
24 object, and not an int. Fix the corresponding error message, and the
25 documentation.
26
Mark Dickinson8c1e2942009-06-30 15:46:37 +000027- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
28 This fixes a build failure on HP-UX: int32_t and uint32_t are
29 defined in inttypes.h instead of stdint.h on that platform.
30
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +000031- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +000032 the 'surrogateescape' error handler, a string which contains unpaired
33 surrogates.
34
Benjamin Petersone39d5d52009-07-02 22:02:15 +000035C-API
36-----
37
Benjamin Petersonb166ffd2009-07-03 13:33:17 +000038- Issue #6405: Remove duplicatet type declarations in descrobject.h.
39
Benjamin Petersone39d5d52009-07-02 22:02:15 +000040- The code flags for old __future__ features are now available again.
41
Benjamin Petersone8fb2032009-06-27 22:03:18 +000042Library
43-------
44
Raymond Hettinger99a13ee2009-08-04 19:13:37 +000045- Issue #6637: defaultdict.copy() did not work when the default factory
46 was left unspecified. Also, the eval/repr round-trip would fail when
47 the default_factory was None.
48
Mark Dickinson34776ca2009-08-02 20:09:59 +000049- Issue #2715: Remove remnants of Carbon.File from binhex module.
50
Mark Dickinson8d238292009-08-02 10:16:33 +000051- Issue #6595: The Decimal constructor now allows arbitrary Unicode
52 decimal digits in input, as recommended by the standard. Previously
53 it was restricted to accepting [0-9].
54
R. David Murraya44c6b32009-07-29 15:40:30 +000055- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
56 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
57 descriptor errors
58
Senthil Kumaran0ac1f832009-07-26 12:39:47 +000059- Issue #1424152: Fix for http.client, urllib.request to support SSL while
60 working through proxy. Original patch by Christopher Li, changes made by
61 Senthil Kumaran
62
Brett Cannon2e3155e2009-07-20 03:22:43 +000063- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
64 the documentation said it did even though the code in PyLoader relied on the
65 abstract method required by ResourceLoader.
66
Mark Dickinson8d156432009-07-18 14:43:10 +000067- Issue #6431: Make Fraction type return NotImplemented when it doesn't
68 know how to handle a comparison without loss of precision. Also add
69 correct handling of infinities and nans for comparisons with float.
70
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +000071- Issue #6415: Fixed warnings.warn sagfault on bad formatted string.
72
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +000073- Issue #6358: The exit status of a command started with os.popen() was
74 reported differently than it did with python 2.x.
75
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +000076- Issue #6323: The pdb debugger did not exit when running a script with a
77 syntax error.
78
Antoine Pitrou53f4ed72009-07-01 15:03:38 +000079- Issue #6369: Fix an RLE decompression bug in the binhex module.
80
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +000081- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
82
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +000083Build
84-----
85
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +000086- Issue 4601: 'make install' did not set the appropriate permissions on
87 directories.
88
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +000089- Issue 5390: Add uninstall icon independent of whether file
90 extensions are installed.
91
Brett Cannon10e35b32009-07-20 00:19:49 +000092Test
93----
94
95- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
96 testing when a .pyc file lacked an code object bytecode.
97
Benjamin Petersone8fb2032009-06-27 22:03:18 +000098
Benjamin Peterson01bf2362009-06-13 14:50:22 +000099What's New in Python 3.1?
100=========================
101
102*Release date: 27-June-2009*
103
104Core and Builtins
105-----------------
106
Mark Dickinsonad195562009-06-24 19:01:32 +0000107- Issue #6334: Fix bug in range length calculation for ranges with
108 large arguments.
109
Raymond Hettinger159eac92009-06-23 20:38:54 +0000110- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
111 because it wasn't recognized as a sequence).
112
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000113Library
114-------
115
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000116- Issue #6314: logging.basicConfig() performs extra checks on the "level"
117 argument.
118
Facundo Batista10706e22009-06-19 20:34:30 +0000119- Issue #6274: Fixed possible file descriptors leak in subprocess.py
120
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000121- Accessing io.StringIO.buffer now raises an AttributeError instead of
122 io.UnsupportedOperation.
123
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000124- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000125 (On Unix)
126
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000127- Issue #1202: zipfile module would cause a struct.error when attempting to
128 store files with a CRC32 > 2**31-1.
129
Matthias Kloseab2b7552009-06-22 13:05:52 +0000130Extension Modules
131-----------------
132
133- Issue #5590: Remove unused global variable in pyexpat extension.
134
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000135
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000136What's New in Python 3.1 Release Candidate 2?
137=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000138
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000139*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000140
141Core and Builtins
142-----------------
143
Raymond Hettinger94f55832009-06-12 18:40:16 +0000144- Fixed SystemError triggered by "range([], 1, -1)".
145
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000146- Issue #5924: On Windows, a large PYTHONPATH environment variable
147 (more than 255 characters) would be completely ignored.
148
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000149- Issue #4547: When debugging a very large function, it was not always
150 possible to update the lineno attribute of the current frame.
151
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000152- Issue #5330: C functions called with keyword arguments were not reported by
153 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
154
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000155Library
156-------
157
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000158- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
159 expression string pattern was trying to match against a bytes returned by
160 Popen. Tested under win32 to build the py-postgresql project.
161
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000162- Issue #6258: Support AMD64 in bdist_msi.
163
R. David Murray58641de2009-06-12 15:33:19 +0000164- Issue #6195: fixed doctest to no longer try to read 'source' data from
165 binary files.
166
Vinay Sajipaffbd872009-06-11 10:11:47 +0000167- Issue #5262: Fixed bug in next rollover time computation in
168 TimedRotatingFileHandler.
169
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000170- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
171 errors property. Additionally, the errors and encoding properties of StringIO
172 are always None now.
173
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000174- Issue #6137: The pickle module now translates module names when loading
175 or dumping pickles with a 2.x-compatible protocol, in order to make data
176 sharing and migration easier. This behaviour can be disabled using the
177 new `fix_imports` optional argument.
178
Raymond Hettinger40925d22009-06-04 18:32:39 +0000179- Removed the ipaddr module.
180
Georg Brandlb54d8012009-06-04 09:11:51 +0000181- Issue #3613: base64.{encode,decode}string are now called
182 base64.{encode,decode}bytes which reflects what type they accept and return.
183 The old names are still there as deprecated aliases.
184
Georg Brandl317185a2009-06-04 09:00:56 +0000185- Issue #5767: Remove sgmlop support from xmlrpc.client.
186
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000187- Issue #6150: Fix test_unicode on wide-unicode builds.
188
Antoine Pitrouc06de472009-05-30 21:04:26 +0000189- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
190 parameters.
191
Martin v. Löwis79b13872009-06-01 04:13:14 +0000192Windows
193-------
194
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000195- Issue #6221: Delete test registry key before running the test.
196
Martin v. Löwis79b13872009-06-01 04:13:14 +0000197- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
198
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000199C-API
200-----
201
202- Issue #5735: Python compiled with --with-pydebug should throw an
203 ImportError when trying to import modules compiled without
204 --with-pydebug, and vice-versa.
205
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000206
Brett Cannonc6d936e2009-06-07 20:09:53 +0000207Build
208-----
209
210- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
211 added LIBS to OS X framework builds.
212
Ronald Oussoren99aab652009-06-08 21:22:57 +0000213- Issue #5809: Specifying both --enable-framework and --enable-shared is
214 an error. Configure now explicity tells you about this.
215
216
Brett Cannonc6d936e2009-06-07 20:09:53 +0000217
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000218What's New in Python 3.1 release candidate 1?
219=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000220
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000221*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000222
223Core and Builtins
224-----------------
225
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000226- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
227 of the command line.
228
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000229- Issue #6012: Add cleanup support to O& argument parsing.
230
Eric Smith41669ca2009-05-23 14:23:22 +0000231- Issue #6089: Fixed str.format with certain invalid field specifiers
232 that would raise SystemError.
233
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000234- Issue #5982: staticmethod and classmethod now expose the wrapped
235 function with __func__.
236
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000237- Added support for multiple context managers in the same with-statement.
238 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000239
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000240- Issue #5829: complex("1e500") no longer raises OverflowError. This
241 makes it consistent with float("1e500") and interpretation of real
242 and imaginary literals.
243
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000244- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
245
R. David Murraydd226ea2009-05-13 12:27:21 +0000246- Issue #5994: the marshal module now has docstrings.
247
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000248- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
249 (1) inf and nan strings with trailing whitespace were incorrectly
250 rejected; (2) parsing of strings representing infinities and nans
251 was locale aware; and (3) the interpretation of fromhex('-nan')
252 didn't match that of float('-nan').
253
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000254Library
255-------
256
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000257- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
258
R. David Murrayfb123912009-05-28 18:19:00 +0000259- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
260
R. David Murray1f1b9d32009-05-27 20:56:59 +0000261- Issue #6121: pydoc now ignores leading and trailing spaces in the
262 argument to the 'help' function.
263
Georg Brandlfaf41492009-05-26 18:31:11 +0000264- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
265 arguments for strings with a space in them.
266
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000267- collections.namedtuple() was not working with the following field
268 names: cls, self, tuple, itemgetter, and property.
269
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000270- In unittest, using a skipping decorator on a class is now equivalent to
271 skipping every test on the class. The ClassTestSuite class has been removed.
272
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000273- Issue #6050: Don't fail extracting a directory from a zipfile if
274 the directory already exists.
275
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000276- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
277 than an int, which makes some operations possible under 64-bit Linux (e.g.
278 DN_MULTISHOT with F_NOTIFY).
279
Antoine Pitrou716c4442009-05-23 19:04:03 +0000280- Issue #5761: Add the name of the underlying file to the repr() of various
281 IO objects.
282
R. David Murraycaa27b72009-05-23 18:49:56 +0000283- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
284 by Musashi Tamura, tests by Marcin Bachry.
285
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000286- Issue #1983: Fix functions taking or returning a process identifier to use
287 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
288 a process identifier type wider than the standard C integer type.
289
R. David Murray87e20742009-05-23 01:30:26 +0000290- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
291 Patch by Farhan Ahmad, test by Marcin Bachry.
292
Antoine Pitrou6e610062009-05-15 17:04:50 +0000293- Issue #2116: Weak references and weak dictionaries now support copy()ing and
294 deepcopy()ing.
295
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000296- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
297
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000298- Issue #5918: Fix a crash in the parser module.
299
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000300- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
301
Antoine Pitroue4501852009-05-14 18:55:55 +0000302- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
303 library. This means, for example, that opening an UTF-16 text file in
304 append mode doesn't add a BOM at the end of the file if the file isn't
305 empty.
306
R. David Murray74b89242009-05-13 17:33:03 +0000307- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
308 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
309 corrects a pydoc regression.
310
R. David Murray99352742009-05-07 18:24:38 +0000311- Issue 5955: aifc's close method did not close the file it wrapped,
312 now it does. This also means getfp method now returns the real fp.
313
Benjamin Peterson932073a2009-05-23 16:14:33 +0000314Installation
315------------
316
317- Issue #6047: fullinstall has been removed because Python 3's executable will
318 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000319
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000320- Lib/smtpd.py is no longer installed as a script.
321
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000322Extension Modules
323-----------------
324
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000325- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000326
Martin v. Löwise23c8682009-05-29 16:01:34 +0000327- Issue #4873: Fix resource leaks in error cases of pwd and grp.
328
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000329- Issue #6093: Fix off-by-one error in locale.strxfrm.
330
Benjamin Peterson744af442009-05-23 18:51:49 +0000331- The _functools and _locale modules are now built into the libpython shared
332 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000333
Antoine Pitrou20327222009-05-24 20:39:11 +0000334Build
335-----
336
337- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
338 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
339 Clinton Roy.
340
Brett Cannon1262e7c2009-05-11 01:47:11 +0000341Tests
342-----
343
344- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
345 tests on darwin even when the OS was installed on a case-sensitive
346 filesystem. Also fixed tests that should not be run when
347 sys.dont_write_bytecode is true.
348
349
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000350What's New in Python 3.1 beta 1?
351================================
352
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000353*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000354
355Core and Builtins
356-----------------
357
Mark Dickinson865e01a2009-05-07 16:37:01 +0000358- Issue #5914: Add new C API function PyOS_string_to_double, and
359 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
360
Eric Smith741191f2009-05-06 13:08:15 +0000361- Issue #3382: float.__format__, complex.__format__, and %-formatting
362 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
363 affects nan -> NAN and inf -> INF.
364
Mark Hammond5a607a32009-05-06 08:04:54 +0000365- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
366 in all operations, including splitdrive, split, etc. splitunc() now issues
367 a PendingDeprecation warning.
368
Eric Smith63376222009-05-05 14:04:18 +0000369- Issue #5920: For float.__format__, change the behavior with the
370 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
371 to be like 'g' but with at least one decimal point and with a
372 default precision of 12. Previously, the behavior the same but with
373 a default precision of 6. This more closely matches str(), and
374 reduces surprises when adding alignment flags to the empty
375 presentation type. This also affects the new complex.__format__ in
376 the same way.
377
Martin v. Löwis011e8422009-05-05 04:43:17 +0000378- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
379
R. David Murrayb18500d2009-05-04 22:59:07 +0000380- Issue #5890: in subclasses of 'property' the __doc__ attribute was
381 shadowed by classtype's, even if it was None. property now
382 inserts the __doc__ into the subclass instance __dict__.
383
Antoine Pitrou244651a2009-05-04 18:56:13 +0000384- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
385 sequences. Patch by Nick Barnes and Victor Stinner.
386
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000387- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000388
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000389- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
390 received a new method, detach(). detach() disconnects the underlying stream
391 from the buffer or text IO and returns it.
392
Mark Dickinson33841c32009-05-01 15:37:04 +0000393- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
394 floats with absolute value over 1e50. Also remove length
395 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
396 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000397
Eric Smith741191f2009-05-06 13:08:15 +0000398- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000399 format(complex(1, 2./3), '.5') now produces a sensible result.
400
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000401- Issue #5864: Fix empty format code formatting for floats so that it
402 never gives more than the requested number of significant digits.
403
Eric Smith6dc46f52009-04-27 20:39:49 +0000404- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
405 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
406
Eric Smithcc32a112009-04-26 21:35:14 +0000407- Issue #5835: Deprecate PyOS_ascii_formatd.
408
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000409- Issue #4971: Fix titlecase for characters that are their own
410 titlecase, but not their own uppercase.
411
Benjamin Peterson193152c2009-04-25 01:08:45 +0000412- Issue #5283: Setting __class__ in __del__ caused a segfault.
413
Mark Dickinsonad476da2009-04-23 19:14:16 +0000414- Issue #5816: complex(repr(z)) now recovers z exactly, even when
415 z involves nans, infs or negative zeros.
416
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000417- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000418
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000419- Issue #1869 (and many duplicates): make round(x, n) correctly
420 rounded for a float x, by using the decimal <-> binary conversions
421 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
422 consistently agrees with format(x, '.2f').
423
Benjamin Petersonae937c02009-04-18 20:54:08 +0000424- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
425 some builtin types.
426
Eric Smith0923d1d2009-04-16 20:16:10 +0000427- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
428
Eric Smith35e84722009-04-16 20:21:28 +0000429- Issue #5515: str.format() type 'n' combined with commas and leading
430 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000431
432- Implement PEP 378, Format Specifier for Thousands Separator, for
433 floats.
434
Mark Dickinson3370cce2009-04-17 22:40:53 +0000435- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000436 1e11, not 1e12. This avoids printing 13 significant digits in
437 situations where only 12 of them are correct. Example problem
438 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
439 long time.)
440
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000441- Issue #1580: On most platforms, use a 'short' float repr: for a
442 finite float x, repr(x) now outputs a string based on the shortest
443 sequence of decimal digits that rounds to x. Previous behaviour was
444 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000445 Another minor difference is that the new repr switches to
446 exponential notation at 1e16 instead of the previous 1e17; this
447 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000448
449 There's a new sys attribute sys.float_repr_style, which takes
450 the value 'short' to indicate that we're using short float repr,
451 and 'legacy' if the short float repr isn't available for one
452 reason or another.
453
454 The float repr change involves incorporating David Gay's 'perfect
455 rounding' code into the Python core (it's in Python/dtoa.c). As a
456 secondary consequence, all string-to-float and float-to-string
457 conversions (including all float formatting operations) will be
458 correctly rounded on these platforms.
459
460 See issue 1580 discussions for details of platforms for which
461 this change does not apply.
462
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000463- Issue #5759: float() didn't call __float__ on str subclasses.
464
Georg Brandlabc38772009-04-12 15:51:51 +0000465- The string.maketrans() function is deprecated; there is a new static method
466 maketrans() on the bytes and bytearray classes. This removes confusion about
467 the types string.maketrans() is supposed to work with, and mirrors the
468 methods available on the str class.
469
R. David Murraydc6da8a2009-04-09 22:16:43 +0000470- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
471 its clarity and its speed.
472
Matthias Klose091c7b12009-04-07 13:24:27 +0000473- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
474 to avoid compiler warnings.
475
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000476- Issue #3739: The unicode-internal encoder now reports the number of characters
477 consumed like any other encoder (instead of the number of bytes).
478
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000479Installation
480------------
481
482- Issue #5756: Install idle and pydoc with a 3 suffix.
483
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000484Library
485-------
486
Martin v. Löwis403117a2009-05-24 19:19:17 +0000487- Issue #5311: bdist_msi can now build packages that do not depend on a
488 specific Python version.
489
Raymond Hettingereb816952009-05-29 01:22:18 +0000490- Issue #5150: IDLE's format menu now has an option to strip trailing
491 whitespace.
492
Vinay Sajipaffbd872009-06-11 10:11:47 +0000493- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000494 the right type checkings anymore.
495
Thomas Heller00cfc372009-05-05 19:04:40 +0000496- Issue #4875: On win32, ctypes.util.find_library does no longer
497 return directories.
498
Georg Brandl243ad662009-05-05 09:00:19 +0000499- Issue #5142: Add the ability to skip modules while stepping to pdb.
500
Georg Brandl991f9202009-05-05 08:31:54 +0000501- Issue #1309567: Fix linecache behavior of stripping subdirectories when
502 looking for files given by a relative filename.
503
Georg Brandleaa84ef2009-05-05 08:14:33 +0000504- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
505 turtle demos in Demo/turtle.
506
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000507- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
508 extracting a file to the root directory.
509
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000510- Issue #5913: os.listdir() should fail for empty path on windows.
511
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000512- Issue #5084: unpickling now interns the attribute names of pickled objects,
513 saving memory and avoiding growth in size of subsequent pickles. Proposal
514 and original patch by Jake McGuire.
515
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000516- The json module now works exclusively with str and not bytes.
517
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000518- Issue #3959: The ipaddr module has been added to the standard library.
519 Contributed by Google.
520
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000521- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
522 error when a named pipe is encountered, rather than blocking infinitely.
523
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000524- Issue #5857: tokenize.tokenize() now returns named tuples.
525
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000526- Issue #4305: ctypes should now build again on mipsel-linux-gnu
527
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000528- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
529 string is already in normalized form, by performing a quick check beforehand.
530 Original patch by Rauli Ruohonen.
531
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000532- Issue #5853: calling a function of the mimetypes module from several threads
533 at once could hit the recursion limit if the mimetypes database hadn't been
534 initialized before.
535
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000536- Issue #5854: Updated __all__ to include some missing names and remove some
537 names which should not be exported.
538
Thomas Heller34596a92009-04-24 20:50:00 +0000539- Issue #3102: All global symbols that the _ctypes extension defines
540 are now prefixed with 'Py' or '_ctypes'.
541
542- Issue #5041: ctypes does now allow pickling wide character.
543
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000544- Issue #5812: For the two-argument form of the Fraction constructor,
545 Fraction(m, n), m and n are permitted to be arbitrary Rational
546 instances.
547
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000548- Issue #5812: Fraction('1e6') is valid: more generally, any string
549 that's valid for float() is now valid for Fraction(), with the
550 exception of strings representing NaNs and infinities.
551
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000552- Issue #5734: BufferedRWPair was poorly tested and had several glaring
553 bugs. Patch by Brian Quinlan.
554
R. David Murray9e94ddf2009-04-13 17:06:33 +0000555- Issue #1161031: fix readwrite select flag handling: POLLPRI now
556 results in a handle_expt_event call, not handle_read_event, and POLLERR
557 and POLLNVAL now call handle_close, not handle_expt_event. Also,
558 dispatcher now has an 'ignore_log_types' attribute for suppressing
559 log messages, which is set to 'warning' by default.
560
Matthias Klosea3d29e82009-04-07 13:13:10 +0000561- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
562 new arguments introduced in 2.5.
563
Walter Dörwald1b08b302009-04-25 14:13:56 +0000564- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
565 makeunicodedata.py and regenerated the Unicode database (This fixes
566 u'\u1d79'.lower() == '\x00').
567
Matthias Klose535336f2009-04-07 13:49:45 +0000568Extension Modules
569-----------------
570
Benjamin Petersone04b6272009-05-04 22:25:21 +0000571- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
572 pwd.
573
Mark Dickinsonea835e72009-04-19 20:40:33 +0000574- Issue #5463: In struct module, remove deprecated float coercion
575 for integer type codes: struct.pack('L', 0.3) should now raise
576 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
577 The version number has been bumped to 0.3.
578
Matthias Klose535336f2009-04-07 13:49:45 +0000579- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
580 using Berkley-DB.
581
Nick Coghlan47384702009-04-22 16:13:36 +0000582Tests
583-----
584
585- Issue #5354: New test support function import_fresh_module() makes
586 it easy to import both normal and optimised versions of modules.
587 test_heapq and test_warnings have been adjusted to use it, tests for
588 other modules with both C and Python implementations in the stdlib
589 can be adjusted to use it over time.
590
Walter Dörwald4ba80132009-04-25 12:48:43 +0000591- Issue #5837: Certain sequences of calls to set() and unset() for
592 support.EnvironmentVarGuard objects restored the environment variables
593 incorrectly on __exit__.
594
Benjamin Petersonb173f782009-05-05 22:31:58 +0000595C-API
596-----
597
598- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
599
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000600
Benjamin Petersond1735892009-03-07 18:46:21 +0000601What's New in Python 3.1 alpha 2?
602=================================
603
Benjamin Peterson88f14352009-04-04 21:06:52 +0000604*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000605
606Core and Builtins
607-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000608
Eric Smith1e1d7d22009-04-03 22:25:33 +0000609- Implement PEP 378, Format Specifier for Thousands Separator, for
610 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000611
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000612- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
613
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000614- Issue #5499: The 'c' code for argument parsing functions now only accepts a
615 byte, and the 'C' code only accepts a unicode character.
616
Georg Brandl406b3d82009-04-11 21:24:37 +0000617- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
618 when hitting the recursion limit under certain circumstances.
619
Brett Cannon0759dd62009-04-01 18:13:07 +0000620- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
621
Georg Brandlab6f2f62009-03-31 04:16:10 +0000622- Fix a segfault when running test_exceptions with coverage, caused by
623 insufficient checks in accessors of Exception.__context__.
624
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000625- Issue #5604: non-ASCII characters in module name passed to
626 imp.find_module() were converted to UTF-8 while the path is
627 converted to the default filesystem encoding, causing nonsense.
628
Benjamin Peterson09832742009-03-26 17:15:46 +0000629- Issue #5126: str.isprintable() returned False for space characters.
630
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000631- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
632 the end sys.path, for compatibility with the system install of Python.
633
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000634- Issue #4688: Add a heuristic so that tuples and dicts containing only
635 untrackable objects are not tracked by the garbage collector. This can
636 reduce the size of collections and therefore the garbage collection overhead
637 on long-running programs, depending on their particular use of datatypes.
638
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000639- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
640 improve its performance. Long divisions and remainder operations
641 are now between 50% and 150% faster.
642
Mark Dickinsonbd792642009-03-18 20:06:12 +0000643- Issue #4258: Make it possible to use base 2**30 instead of base
644 2**15 for the internal representation of integers, for performance
645 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
646 --enable-big-digits option to configure, which overrides the
647 default. Add sys.int_info structseq to provide information about
648 the internal format.
649
Mark Dickinson081dfee2009-03-18 14:47:41 +0000650- Issue #4474: PyUnicode_FromWideChar now converts characters outside
651 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
652 and sizeof(Py_UNICODE) == 2.
653
Eric Smith8ec90442009-03-14 12:29:34 +0000654- Issue #5237: Allow auto-numbered fields in str.format(). For
655 example: '{} {}'.format(1, 2) == '1 2'.
656
Antoine Pitrou652e7072009-03-13 19:25:20 +0000657- Issue #5392: when a very low recursion limit was set, the interpreter would
658 abort with a fatal error after the recursion limit was hit twice.
659
Matthias Klose042f1332009-04-04 14:32:42 +0000660- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
661 short file names.
662
Benjamin Petersond1735892009-03-07 18:46:21 +0000663Library
664-------
665
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000666- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000667 mailbox.MH.get_message().
668
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000669- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
670 error substitutions from non-strict codec error callbacks in
671 incrementalencoder and StreamWriter.
672
Georg Brandl33c28812009-04-01 23:07:29 +0000673- Issue #5656: Fix the coverage reporting when running the test suite with
674 the -T argument.
675
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000676- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
677
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000678- Issue #5624: Fix the _winreg module name still used in several modules.
679
Benjamin Petersona1b49012009-03-31 23:11:32 +0000680- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
681
Jesse Nollera9314042009-03-31 22:36:44 +0000682- Issue #5619: Multiprocessing children disobey the debug flag and causes
683 popups on windows buildbots. Patch applied to work around this issue.
684
Jesse Noller32d68c22009-03-31 18:48:42 +0000685- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
686
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000687- Issue #5387: Fixed mmap.move crash by integer overflow.
688
Jesse Nollerf8d00852009-03-31 03:25:07 +0000689- Issue #5261: Patch multiprocessing's semaphore.c to support context
690 manager use: "with multiprocessing.Lock()" works now.
691
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000692- Issue #5236: Change time.strptime() to only take strings. Didn't work with
693 bytes already but the failure was non-obvious.
694
Jesse Noller7af4ef82009-03-30 16:47:15 +0000695- Issue #5177: Multiprocessing's SocketListener class now uses
696 socket.SO_REUSEADDR on all connections so that the user no longer needs
697 to wait 120 seconds for the socket to expire.
698
Benjamin Peterson48e24782009-03-29 13:02:52 +0000699- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
700
Antoine Pitrou66994e12009-03-29 00:45:26 +0000701- Issue #1174606: Calling read() without arguments of an unbounded file
702 (typically /dev/zero under Unix) could crash the interpreter.
703
Benjamin Peterson59406a92009-03-26 17:10:29 +0000704- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
705 io.BufferedRandom have been deprecated for removal in Python 3.2.
706
Lars Gustäbel42e00912009-03-22 20:34:29 +0000707- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
708 forever on incomplete input. That caused tarfile.open() to hang when used
709 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
710 partial bzip2 compressed data.
711
Mark Dickinson79f52032009-03-17 23:12:51 +0000712- Issue #2110: Add support for thousands separator and 'n' type
713 specifier to Decimal.__format__
714
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000715- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
716 '>' alignment characters.
717
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000718- The error detection code in FileIO.close() could fail to reflect the `errno`
719 value, and report it as -1 instead.
720
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000721- Issue #5016: FileIO.seekable() could return False if the file position
722 was negative when truncated to a C int. Patch by Victor Stinner.
723
Mark Dickinsonae681df2009-03-21 10:26:31 +0000724Extension Modules
725-----------------
726
Benjamin Petersone099b372009-04-04 17:09:35 +0000727- Issue #5391: mmap now deals exclusively with bytes.
728
Mark Dickinsonae681df2009-03-21 10:26:31 +0000729- Issue #5463: In struct module, remove deprecated overflow wrapping
730 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000731 struct.error instead of returning b'\xff\xff\xff\xff'. The
732 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
733 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000734
Benjamin Petersond1735892009-03-07 18:46:21 +0000735
Benjamin Petersona58a6262009-03-07 16:34:40 +0000736What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000737================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000738
Benjamin Petersona58a6262009-03-07 16:34:40 +0000739*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000740
741Core and Builtins
742-----------------
743
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000744- The io module has been reimplemented in C for speed.
745
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000746- Give dict views an informative __repr__.
747
Eric Smith5e5c0db2009-02-20 14:25:03 +0000748- Issue #5247: Improve error message when unknown format codes are
749 used when using str.format() with str, int, and float arguments.
750
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000751- Issue #5249: time.strftime returned malformed string when format string
752 contained non ascii character on windows.
753
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000754- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
755 source has already been decoded into str.
756
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000757- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
758 rotating the object pointer by 4 bits to the right.
759
Mark Dickinson87ec0852009-02-09 17:15:59 +0000760- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
761 it now forces its argument to double before testing for infinity.
762
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000763- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
764 returns a non-number type.
765
Benjamin Peterson87618552009-02-08 15:00:52 +0000766- Issue #5182: Removed memoryview.__str__.
767
Mark Dickinsonc008a172009-02-01 13:59:22 +0000768- Issue #1717: Removed builtin cmp() function, dropped tp_compare
769 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000770 the type definition cmpfunc. The tp_compare slot has been renamed
771 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000772
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000773- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000774 were suppressing all exceptions. These include list() and bytearray().
775
Mark Dickinson1124e712009-01-28 21:25:58 +0000776- Issue #4707: round(x, n) now returns an integer if x is an integer.
777 Previously it returned a float.
778
Antoine Pitroub52ec782009-01-25 16:34:23 +0000779- Issue #4753: By enabling a configure option named '--with-computed-gotos'
780 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
781 evaluation loop is compiled with a new dispatch mechanism which gives
782 speedups of up to 20%, depending on the system, on various benchmarks.
783
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000784- Issue #4874: Most builtin decoders now reject unicode input.
785
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000786- Issue #4842: Don't allow trailing 'L' when constructing an integer
787 from a string.
788
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000789- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
790
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000791- Issue #4838: When a module is deallocated, free the memory backing the
792 optional module state data.
793
Mark Dickinson8055afd2009-01-17 10:04:45 +0000794- Issue #4910: Rename nb_long slot to nb_reserved, and change its
795 type to (void *).
796
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000797- Issue #4935: The overflow checking code in the expandtabs() method common
798 to str, bytes and bytearray could be optimized away by the compiler, letting
799 the interpreter segfault instead of raising an error.
800
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000801- Issue #3720: Fix a crash when an iterator modifies its class and removes its
802 __next__ method.
803
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000804- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
805 function no longer attempt to call the __long__ slot to convert an object
806 to an integer. Only the __int__ and __trunc__ slots are examined.
807
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000808- Issue #4893: Use NT threading on CE.
809
Martin v. Löwisec59d042009-01-12 07:59:10 +0000810- Issue #4915: Port sysmodule to Windows CE.
811
Antoine Pitrouab868312009-01-10 15:40:25 +0000812- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
813 common cases are optimized thanks to a dedicated fast path and a moderate
814 amount of loop unrolling.
815
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000816- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
817 collecting the oldest generation) so that allocating lots of objects without
818 destroying them does not show quadratic performance. Based on a proposal by
819 Martin von Löwis at
820 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
821
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000822- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000823 having been closed (for instance, a read() call could return some
824 previously buffered data). Patch by Dmitry Vasiliev.
825
Antoine Pitrou05608432009-01-09 18:53:14 +0000826- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
827 flag to work properly. Furthermore, when specifying -u, the text stdout
828 and stderr streams have line-by-line buffering enabled (the default being
829 to buffer arbitrary chunks of data).
830
Raymond Hettinger35631532009-01-09 03:58:09 +0000831- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
832 instead of ints (reducing its size from 4 to 8 times thereby reducing
833 Python's overall memory).
834
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000835- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
836 an existing .py counterpart, override the co_filename attributes of all
837 code objects if the original filename is obsolete (which can happen if the
838 file has been renamed, moved, or if it is accessed through different paths).
839 Patch by Ziga Seilnacht and Jean-Paul Calderone.
840
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000841- Issue #4580: Fix slicing of memoryviews when the item size is greater than
842 one byte. Also fixes the meaning of len() so that it returns the number of
843 items, rather than the size in bytes.
844
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000845- Issue #4075: Use OutputDebugStringW in Py_FatalError.
846
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000847- Issue #4747: When the terminal does not use utf-8, executing a script with
848 non-ascii characters in its name could fail with a "SyntaxError: None" error.
849
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000850- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000851 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000852
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000853- Issue #3680: Reference cycles created through a dict, set or deque iterator
854 did not get collected.
855
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000856- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
857 where the tp_hash and tp_dict slots are both NULL.
858
Georg Brandlccc47b62008-12-28 11:44:14 +0000859- Issue #4759: None is now allowed as the first argument of
860 bytearray.translate(). It was always allowed for bytes.translate().
861
Skip Montanaro80072cb2008-12-23 03:51:14 +0000862- Added test case to ensure attempts to read from a file opened for writing
863 fail.
864
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000865- Issue #3106: Speedup some comparisons (str/str and int/int).
866
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000867- Issue #2183: Simplify and optimize bytecode for list, dict and set
868 comprehensions. Original patch for list comprehensions by Neal Norwitz.
869
Antoine Pitrou621601a2008-12-17 23:18:19 +0000870- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
871 print elapsed times, not only when some objects are uncollectable /
872 unreachable. Original patch by Neil Schemenauer.
873
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000874- Issue #3439: Add a bit_length method to int.
875
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000876- Issue #2173: When getting device encoding, check that return value of
877 nl_langinfo is not the empty string. This was causing silent build
878 failures on OS X.
879
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000880- Issue #4597: Fixed several opcodes that weren't always propagating
881 exceptions.
882
883- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000884 context manager returns a value that cannot be converted to a bool.
885
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000886- Issue #4445: Replace "sizeof(PyBytesObject)" with
887 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
888 bytes instances. On a typical machine this saves 3 bytes of memory
889 (on average) per allocation of a bytes instance.
890
Christian Heimesa872de52008-12-05 08:26:55 +0000891- Issue #4533: File read operation was dreadfully slow due to a slowly
892 growing read buffer. Fixed by using the same growth rate algorithm as
893 Python 2.x.
894
Antoine Pitrou5504e892008-12-06 21:27:53 +0000895- Issue #4509: Various issues surrounding resize of bytearray objects to
896 which there are buffer exports (e.g. memoryview instances).
897
Georg Brandlf9734072008-12-07 15:30:06 +0000898- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
899 method on file objects with closefd=False. The file descriptor is still
900 kept open but the file object behaves like a closed file. The ``FileIO``
901 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000902
Antoine Pitroubc420402008-12-07 20:14:49 +0000903- Issue #4569: Interpreter crash when mutating a memoryview with an item size
904 larger than 1.
905
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000906- Issue #4748: Lambda generators no longer return a value.
907
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000908- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
909
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000910- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
911 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
912 step. This avoids problems with counting UTF-8 bytes that ignores the effect
913 of using the replace error handler in PyUnicode_DecodeUTF8().
914
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000915Library
916-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000917
Tarek Ziadé3cc12f62009-07-22 09:03:01 +0000918- Issue #6545: Removed assert statements in distutils.Extension, so the
919 behavior is similar when used with -O.
920
Tarek Ziadé24448fa2009-07-11 11:01:14 +0000921- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
922 "PyInit" prefix, rather than "init".
923
Tarek Ziadé7e646002009-07-10 09:16:07 +0000924- Issue #6455: Fixed test_build_ext under win32.
925
Tarek Ziadé35c88a82009-07-04 02:05:51 +0000926- Issue #6413: Fixed the log level in distutils.dist for announce.
927
Tarek Ziadé385029f2009-07-03 08:37:27 +0000928- Issue #6403: Fixed package path usage in build_ext.
929
Tarek Ziadé2c3de402009-06-29 16:46:14 +0000930- Issue #6365: Distutils build_ext inplace mode was copying the compiled
931 extension in a subdirectory if the extension name had dots.
932
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000933- Issue #6287: Added the license field in Distutils documentation.
934
Tarek Ziadéff543362009-06-11 09:25:41 +0000935- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
936
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000937- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
938 in Makefiles. This prevents compile errors when using syntax like:
939 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
940
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +0000941- Issue #6131: test_modulefinder leaked when run after test_distutils.
942 Patch by Hirokazu Yamamoto.
943
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000944- Issue #6048: Now Distutils uses the tarfile module in archive_util.
945
Vinay Sajipaffbd872009-06-11 10:11:47 +0000946- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +0000947 and tests on pywin32 by Tim Golden.
948
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000949- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
950
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000951- Issue #6046: Fixed the library extension when distutils build_ext is used
952 inplace. Initial patch by Roumen Petrov.
953
Vinay Sajipaffbd872009-06-11 10:11:47 +0000954- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000955 subcommand.
956
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000957- Issue #6022: a test file was created in the current working directory by
958 test_get_outputs in Distutils.
959
Tarek Ziadéff0e5002009-05-12 17:14:01 +0000960- Issue #5977: distutils build_ext.get_outputs was not taking into account the
961 inplace option. Initial patch by kxroberto.
962
Tarek Ziadé06fbee12009-05-10 10:34:01 +0000963- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
964 for old-style extensions.
965
Tarek Ziadébe5b1b92009-05-09 10:09:11 +0000966- Issue #5976: Fixed Distutils test_check_environ.
967
Tarek Ziadé5662d3e2009-05-07 21:24:43 +0000968- Issue #5941: Distutils build_clib command was not working anymore because
969 of an incomplete costumization of the archiver command. Added ARFLAGS in the
970 Makefile besides AR and make Distutils use it. Original patch by David
971 Cournapeau.
972
R. David Murrayb507d2e2009-04-29 15:34:32 +0000973- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
974
Vinay Sajipaffbd872009-06-11 10:11:47 +0000975- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +0000976 anymore.
977
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000978- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000979 sysconfig.get_config_vars.
980
Tarek Ziadé23336082009-04-25 12:39:56 +0000981- Issue #4951: Fixed failure in test_httpservers.
982
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000983- Issue #5795: Fixed test_distutils failure on Debian ppc.
984
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000985- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
986
Georg Brandl1f9fa312009-04-27 16:42:58 +0000987- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
988 a value in SafeConfigParser.
989
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000990- Issue #5732: added a new command in Distutils: check.
991
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000992- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000993 platforms. Initial patch by Paul Moore.
994
Tarek Ziadéf6370502009-04-05 22:57:21 +0000995- Issue #5095: Added bdist_msi to the list of bdist supported formats.
996 Initial fix by Steven Bethard.
997
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000998- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
999 Initial fix by Wayne Davison.
1000
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001001- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001002
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001003- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001004
Brett Cannonf47e84c2009-04-01 16:06:01 +00001005- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1006 instead of performing them in functions. Helps prevent import deadlocking in
1007 threads.
1008
R. David Murraye59482e2009-04-01 03:42:00 +00001009- Issue #2522: locale.format now checks its first argument to ensure it has
1010 been passed only one pattern, avoiding mysterious errors where it appeared
1011 that it was failing to do localization.
1012
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001013- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1014 Brandl.
1015
Antoine Pitrou350370c2009-03-14 00:13:13 +00001016- Issue #1222: locale.format() bug when the thousands separator is a space
1017 character.
1018
Tarek Ziadé516db942009-03-11 12:52:00 +00001019- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1020 Tim Golden.
1021
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001022- collections.deque() objects now have a read-only attribute called maxlen.
1023
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001024- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1025 it is has been populated and properly configured in order to prevent
1026 window flashing.
1027
Guilherme Polo56f5be52009-03-07 01:54:57 +00001028- Issue #4792: Prevent a segfault in _tkinter by using the
1029 guaranteed to be safe interp argument given to the PythonCmd in place of
1030 the Tcl interpreter taken from a PythonCmd_ClientData.
1031
1032- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1033
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001034- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1035 Original patch by Akira Kitada.
1036
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001037- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1038
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001039- Issue #5385: Fixed mmap crash after resize failure on windows.
1040
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001041- Issue #5179: Fixed subprocess handle leak on failure on windows.
1042
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001043- PEP 372: Added collections.OrderedDict().
1044
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001045- The _asdict() for method for namedtuples now returns an OrderedDict().
1046
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001047- configparser now defaults to using an ordered dictionary.
1048
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001049- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1050 import guess_extension`` was used.
1051
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001052- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1053 with same tagname but larger size than first map. (Windows)
1054
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001055- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1056 overrun.
1057
Tarek Ziadéf0721222009-02-28 10:16:43 +00001058- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1059 bdist_rpm command.
1060
1061- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1062
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001063- Issue #5052: make Distutils compatible with 2.3 again.
1064
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001065- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1066 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001067
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001068- Issue #5287: Add exception handling around findCaller() call to help out
1069 IronPython.
1070
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001071- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1072 The file was resized to wrong size.
1073
1074- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1075
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001076- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001077 from the package_data and the data_files metadata.
1078
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001079- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001080 support.TempdirManager, to avoid writing in the tests directory.
1081
Tarek Ziadé68c50952009-02-13 23:04:17 +00001082- Issue #4524: distutils build_script command failed with --with-suffix=3.
1083 Initial patch by Amaury Forgeot d'Arc.
1084
Tarek Ziadé811d6242009-02-13 22:26:15 +00001085- Issue #2461: added tests for distutils.util
1086
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001087- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1088 which inherited from numbers.py which did not have __slots__ defined. The
1089 numbers hierarchy now has its own __slots__ declarations.
1090
Antoine Pitroub353c122009-02-11 00:39:14 +00001091- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1092 encoding.
1093
Thomas Heller465c8022009-02-10 18:59:04 +00001094- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1095 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1096
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001097- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1098 under NT and OS2. Patch by Philip Jenvey.
1099
Brett Cannonbefb14f2009-02-10 02:10:16 +00001100- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1101 to be recreated. This avoids a timing hole thanks to the old reliance on the
1102 ctime of the files involved.
1103
Guilherme Polob681df42009-02-09 22:33:59 +00001104- Issue #5122: Synchronize tk load failure check to prevent a potential
1105 deadlock.
1106
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001107- Issue #1818: collections.namedtuple() now supports a keyword argument
1108 'rename' which lets invalid fieldnames be automatically converted to
1109 positional names in the form, _1, _2, ...
1110
Guilherme Poloae098992009-02-09 16:44:24 +00001111- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1112
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001113- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1114 public documented method ``ZipImporter.get_filename()``.
1115
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001116- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1117 the execution of packages by looking for and executing a ``__main__``
1118 submodule when a package name is supplied. Initial patch by Andi
1119 Vajda.
1120
Guilherme Polo491aee22009-02-06 23:16:11 +00001121- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1122 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1123 Tkapp_Call when calling from a thread different than the one that created
1124 the Tcl interpreter. Patch by Robert Hancock.
1125
Eric Smith0e5b5622009-02-06 01:32:42 +00001126- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1127 Ross Light.
1128
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001129- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001130 environment/Makefile. Patch by Douglas Greiman.
1131
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001132- Issue #1276768: The verbose option was not used in the code of
1133 distutils.file_util and distutils.dir_util.
1134
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001135- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001136 --enabled-shared activated. Initial patch by Dave Peterson.
1137
Guilherme Polo7f423952009-02-02 21:17:09 +00001138- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1139
Raymond Hettinger85602262009-02-03 04:19:10 +00001140- The shelve module now defaults to pickle protocol 3.
1141
Brett Cannone61426e2009-01-30 01:31:34 +00001142- Fix a bug in the trace module where a bytes object from co_lnotab had its
1143 items being passed through ord().
1144
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001145- Issue #2047: shutil.move() could believe that its destination path was
1146 inside its source path if it began with the same letters (e.g. "src" vs.
1147 "src.new").
1148
Guilherme Polo5f238482009-01-28 14:41:10 +00001149- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1150
Raymond Hettinger89e12962009-01-26 02:09:03 +00001151- Removed isSequenceType(), isMappingType, and isNumberType() from the
1152 operator module; use the abstract base classes instead. Also removed
1153 the repeat() function; use mul() instead.
1154
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001155- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001156 collections.namedtuple() relied on __name__ being defined.
1157
1158- Backport importlib from Python 3.1. Only the import_module() function has
1159 been backported to help facilitate transitions from 2.7 to 3.1.
1160
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001161- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1162 the tar file was overriden by the gztar one.
1163
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001164- Issue #4863: distutils.mwerkscompiler has been removed.
1165
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001166- Added a new itertools functions: combinations_with_replacement()
1167 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001168
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001169- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001170 allowed non-integer arguments.
1171
Jesse Noller41faa542009-01-25 03:45:53 +00001172- Fix and properly document the multiprocessing module's logging
1173 support, expose the internal levels and provide proper usage
1174 examples.
1175
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001176- Issue #1672332: fix unpickling of subnormal floats, which was
1177 producing a ValueError on some platforms.
1178
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001179- Issue #3881: Help Tcl to load even when started through the
1180 unreadable local symlink to "Program Files" on Vista.
1181
Martin v. Löwis59e47792009-01-24 14:10:07 +00001182- Issue #4710: Extract directories properly in the zipfile module;
1183 allow adding directories to a zipfile.
1184
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001185- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001186 --without-threads argument. When this occurs, _multiprocessing will
1187 be disabled, and not compiled.
1188
Antoine Pitrou08838b62009-01-21 00:55:13 +00001189- Issue #5008: When a file is opened in append mode with the new IO library,
1190 do an explicit seek to the end of file (so that e.g. tell() returns the
1191 file size rather than 0). This is consistent with the behaviour of the
1192 traditional 2.x file object.
1193
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001194- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1195 parameter was set.
1196
Mark Dickinson8dd05142009-01-20 20:43:58 +00001197- Issue #4842: Always append a trailing 'L' when pickling longs using
1198 pickle protocol 0. When reading, the 'L' is optional.
1199
Brett Cannonafccd632009-01-20 02:21:27 +00001200- Add the importlib package.
1201
Jesse Noller9a0fc972009-01-18 21:12:58 +00001202- Issue #4301: Patch the logging module to add processName support, remove
1203 _check_logger_class from multiprocessing.
1204
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001205- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001206 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001207
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001208- Issue #4959: inspect.formatargspec now works for keyword only arguments
1209 without defaults.
1210
Jesse Noller6214edd2009-01-19 16:23:53 +00001211- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1212 for *nix machines for negative handles and large int handles. Without this check
1213 it is possible to segfault the interpreter.
1214
Jesse Nollerb0516a62009-01-18 03:11:38 +00001215- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1216 in sharedctypes.py.
1217
1218- Issue #1225107: inspect.isclass() returned True for instances with a custom
1219 __getattr__.
1220
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001221- Issue #3826 and #4791: The socket module now closes the underlying socket
1222 appropriately when it is being used via socket.makefile() objects
1223 rather than delaying the close by waiting for garbage collection to do it.
1224
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001225- Issue #1696199: Add collections.Counter() for rapid and convenient
1226 counting.
1227
Antoine Pitrou308705e2009-01-10 16:22:51 +00001228- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1229
Thomas Heller5e4e4272009-01-08 09:34:20 +00001230- Issue #4867: Fixed a crash in ctypes when passing a string to a
1231 function without defining argtypes.
1232
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001233- Issue #4272: Add an optional argument to the GzipFile constructor to override
1234 the timestamp in the gzip stream. The default value remains the current time.
1235 The information can be used by e.g. gunzip when decompressing. Patch by
1236 Jacques Frechet.
1237
Mark Dickinson315a20a2009-01-04 21:34:18 +00001238- Restore Python 2.3 compatibility for decimal.py.
1239
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001240- Issue #3638: Remove functions from _tkinter module level that depend on
1241 TkappObject to work with multiple threads.
1242
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001243- Issue #4718: Adapt the wsgiref package so that it actually works with
1244 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001245 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1246
Raymond Hettinger771ed762009-01-03 19:20:32 +00001247- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1248 to the decimal module.
1249
Georg Brandl3a9b0622009-01-03 22:07:57 +00001250- Fractions.from_float() no longer loses precision for integers too big to
1251 cast as floats.
1252
Mark Dickinsonf9236412009-01-02 23:23:21 +00001253- Issue #4812: add missing underscore prefix to some internal-use-only
1254 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1255
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001256- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001257 did unnecessary work in the common case where no key function was specified.
1258
Georg Brandlb1441c72009-01-03 22:33:39 +00001259- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1260 the function is not a generator.
1261
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001262- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1263 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001264
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001265- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001266 function. Original patch by Thomas Heller.
1267
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001268- Issue #3767: Convert Tk object to string in tkColorChooser.
1269
Martin v. Löwise354d782008-12-29 16:03:04 +00001270- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1271
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001272- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1273 the code under test can be written inline if more practical.
1274
Georg Brandldb7b6b92009-01-01 15:53:14 +00001275- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1276 works as expected in the interactive environment.
1277
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001278- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1279 Gabriel Genellina.
1280
Antoine Pitrou180a3362008-12-14 16:36:46 +00001281- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1282 boundary.
1283
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001284- Issue #4223: inspect.getsource() will now correctly display source code
1285 for packages loaded via zipimport (or any other conformant PEP 302
1286 loader). Original patch by Alexander Belopolsky.
1287
1288- Issue #4201: pdb can now access and display source code loaded via
1289 zipimport (or any other conformant PEP 302 loader). Original patch by
1290 Alexander Belopolsky.
1291
1292- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1293 302 conformant loader) will now work correctly in most cases (they
1294 are still subject to the constraints that exist for all code running
1295 from inside a module loaded via a PEP 302 loader and attempting to
1296 perform IO operations based on __file__). Original patch by
1297 Alexander Belopolsky.
1298
1299- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1300 allows backporting to maintenance branches. Original patch by
1301 Alexander Belopolsky.
1302
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001303- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1304 a non-ASCII letter.
1305
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001306- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1307
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001308- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1309 codec cannot be found. This is for compatibility with the builtin behavior.
1310
Facundo Batista708d5812008-12-11 04:20:07 +00001311- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1312 give correct results in the case where one argument is a quiet NaN
1313 and the other is a finite number that requires rounding.
1314
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001315- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1316 libs.
1317
Georg Brandlf9734072008-12-07 15:30:06 +00001318- Added the subprocess.check_call_output() convenience function to get output
1319 from a subprocess on success or raise an exception on error.
1320
1321- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1322 support unusual filenames (such as those containing semi-colons) in
1323 Content-Disposition headers.
1324
1325- Issue #4384: Added logging integration with warnings module using
1326 captureWarnings(). This change includes a NullHandler which does nothing;
1327 it will be of use to library developers who want to avoid the "No handlers
1328 could be found for logger XXX" message which can appear if the library user
1329 doesn't configure logging.
1330
1331- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1332 exception.
1333
Georg Brandleee31162008-12-07 15:15:22 +00001334- Issue #4529: fix the parser module's validation of try-except-finally
1335 statements.
1336
1337- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1338 not a malformed option.
1339
1340- Added the subprocess.check_output() convenience function to get output
1341 from a subprocess on success or raise an exception on error.
1342
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001343- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1344 the corresponding tests now pass.
1345
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001346- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1347 it was calling the wrong open() function.
1348
Fred Drake9a0a65b2008-12-04 19:24:50 +00001349- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1350 support unusual filenames (such as those containing semi-colons) in
1351 Content-Disposition headers.
1352
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001353- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1354 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1355
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001356- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1357 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1358 and getservbyport().
1359
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001360- Windows locale mapping updated to Vista.
1361
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001362Tools/Demos
1363-----------
1364
Antoine Pitrou8a681222009-02-07 17:13:31 +00001365- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1366 and make it 2.6-compatible.
1367
Guilherme Poloa7d27972009-01-28 16:06:51 +00001368- Ttk demos added in Demo/tkinter/ttk/
1369
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001370- Issue #4677: add two list comprehension tests to pybench.
1371
Georg Brandlb1441c72009-01-03 22:33:39 +00001372
1373Build
1374-----
1375
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001376- Issue #6094: Build correctly with Subversion 1.7.
1377
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001378- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1379
Antoine Pitrou8966c992009-05-01 21:18:27 +00001380- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1381 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1382
Matthias Klose55708cc2009-04-30 08:06:49 +00001383- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001384 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001385
Matthias Klose906785c2009-02-22 23:18:38 +00001386- Link the shared python library with $(MODLIBS).
1387
Martin v. Löwis11f72102009-02-10 13:13:30 +00001388- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1389
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001390- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1391
Martin v. Löwise97637d2009-01-11 09:45:11 +00001392- Issue #4895: Use _strdup on Windows CE.
1393
Georg Brandlb1441c72009-01-03 22:33:39 +00001394- Issue #4472: "configure --enable-shared" now works on OSX
1395
1396- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1397
1398- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1399
1400- Issue #4289: Remove Cancel button from AdvancedDlg.
1401
1402- Issue #1656675: Register a drop handler for .py* files on Windows.
1403
1404- Issue #4120: Exclude manifest from extension modules in VS2008.
1405
1406- Issue #4091: Install pythonxy.dll in system32 again.
1407
1408- Issue #4018: Disable "for me" installations on Vista.
1409
1410- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1411
1412- Issue #4204: Fixed module build errors on FreeBSD 4.
1413
1414
1415C-API
1416-----
1417
Mark Dickinson21776072009-02-10 16:13:25 +00001418- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1419 for negative arguments. Previously, it raised TypeError.
1420
Georg Brandlb1441c72009-01-03 22:33:39 +00001421- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1422
1423- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1424 the GIL is released, or owned by another thread.
1425
1426- Issue #4122: On Windows, fix a compilation error when using the
1427 Py_UNICODE_ISSPACE macro in an extension module.
1428
1429
Mark Dickinsone675f082008-12-11 21:56:00 +00001430Extension Modules
1431-----------------
1432
Gregory P. Smith365a1862009-02-12 07:35:29 +00001433- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1434 supporting objects as input no matter how it was compiled (built in
1435 implementations or external openssl library).
1436
Mark Dickinson29500f62009-01-15 15:36:10 +00001437- Issue #4397: Fix occasional test_socket failure on OS X.
1438
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001439- Issue #4279: Fix build of parsermodule under Cygwin.
1440
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001441- Issue #4751: hashlib now releases the GIL when hashing large buffers
1442 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1443 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1444
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001445- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1446
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001447- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1448 or decompress several streams at once on multi-CPU systems. Also, the GIL
1449 is now released when computing the CRC of a large buffer. Patch by ebfe.
1450
Georg Brandlb1441c72009-01-03 22:33:39 +00001451- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1452
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001453- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1454
Mark Dickinsone675f082008-12-11 21:56:00 +00001455- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1456 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001457
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001458- Issue #4583: array.array would not always prohibit resizing when a buffer
1459 has been exported, resulting in an interpreter crash when accessing the
1460 buffer.
1461
Martin v. Löwis841edad2008-11-30 10:36:49 +00001462
Jack Diederiche0cbd692009-04-01 04:27:09 +00001463- Issue #5228: Make functools.partial objects can now be pickled.
1464
Guilherme Polo9de29af2009-01-28 20:40:48 +00001465Tests
1466-----
1467
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001468- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1469 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1470 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1471 skip the tests if DISPLAY is defined but can't be used.
1472
R. David Murraya21e4ca2009-03-31 23:16:50 +00001473- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001474 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001475 from test support, which does the conversion.
1476
Guilherme Polo9de29af2009-01-28 20:40:48 +00001477- Issue #5083: New 'gui' resource for regrtest.
1478
1479
Brett Cannon7317c1e2008-11-25 19:19:17 +00001480Docs
1481----
1482
Georg Brandl52b92cc2008-05-25 09:43:03 +00001483
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001484**(For information about older versions, consult the HISTORY file.)**