blob: 583afe2fa7d258522f41fbd181af6edd029a41bd [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
10*Release date: XX-XX-XXXX"
11
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
Mark Dickinson8d238292009-08-02 10:16:33 +000045- Issue #6595: The Decimal constructor now allows arbitrary Unicode
46 decimal digits in input, as recommended by the standard. Previously
47 it was restricted to accepting [0-9].
48
R. David Murraya44c6b32009-07-29 15:40:30 +000049- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
50 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
51 descriptor errors
52
Senthil Kumaran0ac1f832009-07-26 12:39:47 +000053- Issue #1424152: Fix for http.client, urllib.request to support SSL while
54 working through proxy. Original patch by Christopher Li, changes made by
55 Senthil Kumaran
56
Brett Cannon2e3155e2009-07-20 03:22:43 +000057- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
58 the documentation said it did even though the code in PyLoader relied on the
59 abstract method required by ResourceLoader.
60
Mark Dickinson8d156432009-07-18 14:43:10 +000061- Issue #6431: Make Fraction type return NotImplemented when it doesn't
62 know how to handle a comparison without loss of precision. Also add
63 correct handling of infinities and nans for comparisons with float.
64
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +000065- Issue #6415: Fixed warnings.warn sagfault on bad formatted string.
66
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +000067- Issue #6358: The exit status of a command started with os.popen() was
68 reported differently than it did with python 2.x.
69
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +000070- Issue #6323: The pdb debugger did not exit when running a script with a
71 syntax error.
72
Antoine Pitrou53f4ed72009-07-01 15:03:38 +000073- Issue #6369: Fix an RLE decompression bug in the binhex module.
74
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +000075- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
76
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +000077Build
78-----
79
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +000080- Issue 4601: 'make install' did not set the appropriate permissions on
81 directories.
82
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +000083- Issue 5390: Add uninstall icon independent of whether file
84 extensions are installed.
85
Brett Cannon10e35b32009-07-20 00:19:49 +000086Test
87----
88
89- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
90 testing when a .pyc file lacked an code object bytecode.
91
Benjamin Petersone8fb2032009-06-27 22:03:18 +000092
Benjamin Peterson01bf2362009-06-13 14:50:22 +000093What's New in Python 3.1?
94=========================
95
96*Release date: 27-June-2009*
97
98Core and Builtins
99-----------------
100
Mark Dickinsonad195562009-06-24 19:01:32 +0000101- Issue #6334: Fix bug in range length calculation for ranges with
102 large arguments.
103
Raymond Hettinger159eac92009-06-23 20:38:54 +0000104- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
105 because it wasn't recognized as a sequence).
106
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000107Library
108-------
109
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000110- Issue #6314: logging.basicConfig() performs extra checks on the "level"
111 argument.
112
Facundo Batista10706e22009-06-19 20:34:30 +0000113- Issue #6274: Fixed possible file descriptors leak in subprocess.py
114
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000115- Accessing io.StringIO.buffer now raises an AttributeError instead of
116 io.UnsupportedOperation.
117
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000118- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000119 (On Unix)
120
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000121- Issue #1202: zipfile module would cause a struct.error when attempting to
122 store files with a CRC32 > 2**31-1.
123
Matthias Kloseab2b7552009-06-22 13:05:52 +0000124Extension Modules
125-----------------
126
127- Issue #5590: Remove unused global variable in pyexpat extension.
128
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000129
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000130What's New in Python 3.1 Release Candidate 2?
131=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000132
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000133*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000134
135Core and Builtins
136-----------------
137
Raymond Hettinger94f55832009-06-12 18:40:16 +0000138- Fixed SystemError triggered by "range([], 1, -1)".
139
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000140- Issue #5924: On Windows, a large PYTHONPATH environment variable
141 (more than 255 characters) would be completely ignored.
142
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000143- Issue #4547: When debugging a very large function, it was not always
144 possible to update the lineno attribute of the current frame.
145
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000146- Issue #5330: C functions called with keyword arguments were not reported by
147 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
148
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000149Library
150-------
151
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000152- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
153 expression string pattern was trying to match against a bytes returned by
154 Popen. Tested under win32 to build the py-postgresql project.
155
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000156- Issue #6258: Support AMD64 in bdist_msi.
157
R. David Murray58641de2009-06-12 15:33:19 +0000158- Issue #6195: fixed doctest to no longer try to read 'source' data from
159 binary files.
160
Vinay Sajipaffbd872009-06-11 10:11:47 +0000161- Issue #5262: Fixed bug in next rollover time computation in
162 TimedRotatingFileHandler.
163
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000164- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
165 errors property. Additionally, the errors and encoding properties of StringIO
166 are always None now.
167
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000168- Issue #6137: The pickle module now translates module names when loading
169 or dumping pickles with a 2.x-compatible protocol, in order to make data
170 sharing and migration easier. This behaviour can be disabled using the
171 new `fix_imports` optional argument.
172
Raymond Hettinger40925d22009-06-04 18:32:39 +0000173- Removed the ipaddr module.
174
Georg Brandlb54d8012009-06-04 09:11:51 +0000175- Issue #3613: base64.{encode,decode}string are now called
176 base64.{encode,decode}bytes which reflects what type they accept and return.
177 The old names are still there as deprecated aliases.
178
Georg Brandl317185a2009-06-04 09:00:56 +0000179- Issue #5767: Remove sgmlop support from xmlrpc.client.
180
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000181- Issue #6150: Fix test_unicode on wide-unicode builds.
182
Antoine Pitrouc06de472009-05-30 21:04:26 +0000183- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
184 parameters.
185
Martin v. Löwis79b13872009-06-01 04:13:14 +0000186Windows
187-------
188
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000189- Issue #6221: Delete test registry key before running the test.
190
Martin v. Löwis79b13872009-06-01 04:13:14 +0000191- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
192
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000193C-API
194-----
195
196- Issue #5735: Python compiled with --with-pydebug should throw an
197 ImportError when trying to import modules compiled without
198 --with-pydebug, and vice-versa.
199
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000200
Brett Cannonc6d936e2009-06-07 20:09:53 +0000201Build
202-----
203
204- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
205 added LIBS to OS X framework builds.
206
Ronald Oussoren99aab652009-06-08 21:22:57 +0000207- Issue #5809: Specifying both --enable-framework and --enable-shared is
208 an error. Configure now explicity tells you about this.
209
210
Brett Cannonc6d936e2009-06-07 20:09:53 +0000211
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000212What's New in Python 3.1 release candidate 1?
213=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000214
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000215*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000216
217Core and Builtins
218-----------------
219
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000220- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
221 of the command line.
222
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000223- Issue #6012: Add cleanup support to O& argument parsing.
224
Eric Smith41669ca2009-05-23 14:23:22 +0000225- Issue #6089: Fixed str.format with certain invalid field specifiers
226 that would raise SystemError.
227
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000228- Issue #5982: staticmethod and classmethod now expose the wrapped
229 function with __func__.
230
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000231- Added support for multiple context managers in the same with-statement.
232 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000233
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000234- Issue #5829: complex("1e500") no longer raises OverflowError. This
235 makes it consistent with float("1e500") and interpretation of real
236 and imaginary literals.
237
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000238- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
239
R. David Murraydd226ea2009-05-13 12:27:21 +0000240- Issue #5994: the marshal module now has docstrings.
241
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000242- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
243 (1) inf and nan strings with trailing whitespace were incorrectly
244 rejected; (2) parsing of strings representing infinities and nans
245 was locale aware; and (3) the interpretation of fromhex('-nan')
246 didn't match that of float('-nan').
247
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000248Library
249-------
250
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000251- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
252
R. David Murrayfb123912009-05-28 18:19:00 +0000253- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
254
R. David Murray1f1b9d32009-05-27 20:56:59 +0000255- Issue #6121: pydoc now ignores leading and trailing spaces in the
256 argument to the 'help' function.
257
Georg Brandlfaf41492009-05-26 18:31:11 +0000258- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
259 arguments for strings with a space in them.
260
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000261- collections.namedtuple() was not working with the following field
262 names: cls, self, tuple, itemgetter, and property.
263
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000264- In unittest, using a skipping decorator on a class is now equivalent to
265 skipping every test on the class. The ClassTestSuite class has been removed.
266
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000267- Issue #6050: Don't fail extracting a directory from a zipfile if
268 the directory already exists.
269
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000270- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
271 than an int, which makes some operations possible under 64-bit Linux (e.g.
272 DN_MULTISHOT with F_NOTIFY).
273
Antoine Pitrou716c4442009-05-23 19:04:03 +0000274- Issue #5761: Add the name of the underlying file to the repr() of various
275 IO objects.
276
R. David Murraycaa27b72009-05-23 18:49:56 +0000277- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
278 by Musashi Tamura, tests by Marcin Bachry.
279
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000280- Issue #1983: Fix functions taking or returning a process identifier to use
281 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
282 a process identifier type wider than the standard C integer type.
283
R. David Murray87e20742009-05-23 01:30:26 +0000284- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
285 Patch by Farhan Ahmad, test by Marcin Bachry.
286
Antoine Pitrou6e610062009-05-15 17:04:50 +0000287- Issue #2116: Weak references and weak dictionaries now support copy()ing and
288 deepcopy()ing.
289
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000290- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
291
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000292- Issue #5918: Fix a crash in the parser module.
293
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000294- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
295
Antoine Pitroue4501852009-05-14 18:55:55 +0000296- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
297 library. This means, for example, that opening an UTF-16 text file in
298 append mode doesn't add a BOM at the end of the file if the file isn't
299 empty.
300
R. David Murray74b89242009-05-13 17:33:03 +0000301- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
302 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
303 corrects a pydoc regression.
304
R. David Murray99352742009-05-07 18:24:38 +0000305- Issue 5955: aifc's close method did not close the file it wrapped,
306 now it does. This also means getfp method now returns the real fp.
307
Benjamin Peterson932073a2009-05-23 16:14:33 +0000308Installation
309------------
310
311- Issue #6047: fullinstall has been removed because Python 3's executable will
312 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000313
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000314- Lib/smtpd.py is no longer installed as a script.
315
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000316Extension Modules
317-----------------
318
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000319- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000320
Martin v. Löwise23c8682009-05-29 16:01:34 +0000321- Issue #4873: Fix resource leaks in error cases of pwd and grp.
322
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000323- Issue #6093: Fix off-by-one error in locale.strxfrm.
324
Benjamin Peterson744af442009-05-23 18:51:49 +0000325- The _functools and _locale modules are now built into the libpython shared
326 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000327
Antoine Pitrou20327222009-05-24 20:39:11 +0000328Build
329-----
330
331- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
332 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
333 Clinton Roy.
334
Brett Cannon1262e7c2009-05-11 01:47:11 +0000335Tests
336-----
337
338- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
339 tests on darwin even when the OS was installed on a case-sensitive
340 filesystem. Also fixed tests that should not be run when
341 sys.dont_write_bytecode is true.
342
343
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000344What's New in Python 3.1 beta 1?
345================================
346
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000347*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000348
349Core and Builtins
350-----------------
351
Mark Dickinson865e01a2009-05-07 16:37:01 +0000352- Issue #5914: Add new C API function PyOS_string_to_double, and
353 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
354
Eric Smith741191f2009-05-06 13:08:15 +0000355- Issue #3382: float.__format__, complex.__format__, and %-formatting
356 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
357 affects nan -> NAN and inf -> INF.
358
Mark Hammond5a607a32009-05-06 08:04:54 +0000359- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
360 in all operations, including splitdrive, split, etc. splitunc() now issues
361 a PendingDeprecation warning.
362
Eric Smith63376222009-05-05 14:04:18 +0000363- Issue #5920: For float.__format__, change the behavior with the
364 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
365 to be like 'g' but with at least one decimal point and with a
366 default precision of 12. Previously, the behavior the same but with
367 a default precision of 6. This more closely matches str(), and
368 reduces surprises when adding alignment flags to the empty
369 presentation type. This also affects the new complex.__format__ in
370 the same way.
371
Martin v. Löwis011e8422009-05-05 04:43:17 +0000372- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
373
R. David Murrayb18500d2009-05-04 22:59:07 +0000374- Issue #5890: in subclasses of 'property' the __doc__ attribute was
375 shadowed by classtype's, even if it was None. property now
376 inserts the __doc__ into the subclass instance __dict__.
377
Antoine Pitrou244651a2009-05-04 18:56:13 +0000378- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
379 sequences. Patch by Nick Barnes and Victor Stinner.
380
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000381- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000382
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000383- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
384 received a new method, detach(). detach() disconnects the underlying stream
385 from the buffer or text IO and returns it.
386
Mark Dickinson33841c32009-05-01 15:37:04 +0000387- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
388 floats with absolute value over 1e50. Also remove length
389 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
390 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000391
Eric Smith741191f2009-05-06 13:08:15 +0000392- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000393 format(complex(1, 2./3), '.5') now produces a sensible result.
394
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000395- Issue #5864: Fix empty format code formatting for floats so that it
396 never gives more than the requested number of significant digits.
397
Eric Smith6dc46f52009-04-27 20:39:49 +0000398- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
399 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
400
Eric Smithcc32a112009-04-26 21:35:14 +0000401- Issue #5835: Deprecate PyOS_ascii_formatd.
402
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000403- Issue #4971: Fix titlecase for characters that are their own
404 titlecase, but not their own uppercase.
405
Benjamin Peterson193152c2009-04-25 01:08:45 +0000406- Issue #5283: Setting __class__ in __del__ caused a segfault.
407
Mark Dickinsonad476da2009-04-23 19:14:16 +0000408- Issue #5816: complex(repr(z)) now recovers z exactly, even when
409 z involves nans, infs or negative zeros.
410
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000411- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000412
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000413- Issue #1869 (and many duplicates): make round(x, n) correctly
414 rounded for a float x, by using the decimal <-> binary conversions
415 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
416 consistently agrees with format(x, '.2f').
417
Benjamin Petersonae937c02009-04-18 20:54:08 +0000418- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
419 some builtin types.
420
Eric Smith0923d1d2009-04-16 20:16:10 +0000421- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
422
Eric Smith35e84722009-04-16 20:21:28 +0000423- Issue #5515: str.format() type 'n' combined with commas and leading
424 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000425
426- Implement PEP 378, Format Specifier for Thousands Separator, for
427 floats.
428
Mark Dickinson3370cce2009-04-17 22:40:53 +0000429- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000430 1e11, not 1e12. This avoids printing 13 significant digits in
431 situations where only 12 of them are correct. Example problem
432 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
433 long time.)
434
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000435- Issue #1580: On most platforms, use a 'short' float repr: for a
436 finite float x, repr(x) now outputs a string based on the shortest
437 sequence of decimal digits that rounds to x. Previous behaviour was
438 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000439 Another minor difference is that the new repr switches to
440 exponential notation at 1e16 instead of the previous 1e17; this
441 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000442
443 There's a new sys attribute sys.float_repr_style, which takes
444 the value 'short' to indicate that we're using short float repr,
445 and 'legacy' if the short float repr isn't available for one
446 reason or another.
447
448 The float repr change involves incorporating David Gay's 'perfect
449 rounding' code into the Python core (it's in Python/dtoa.c). As a
450 secondary consequence, all string-to-float and float-to-string
451 conversions (including all float formatting operations) will be
452 correctly rounded on these platforms.
453
454 See issue 1580 discussions for details of platforms for which
455 this change does not apply.
456
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000457- Issue #5759: float() didn't call __float__ on str subclasses.
458
Georg Brandlabc38772009-04-12 15:51:51 +0000459- The string.maketrans() function is deprecated; there is a new static method
460 maketrans() on the bytes and bytearray classes. This removes confusion about
461 the types string.maketrans() is supposed to work with, and mirrors the
462 methods available on the str class.
463
R. David Murraydc6da8a2009-04-09 22:16:43 +0000464- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
465 its clarity and its speed.
466
Matthias Klose091c7b12009-04-07 13:24:27 +0000467- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
468 to avoid compiler warnings.
469
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000470- Issue #3739: The unicode-internal encoder now reports the number of characters
471 consumed like any other encoder (instead of the number of bytes).
472
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000473Installation
474------------
475
476- Issue #5756: Install idle and pydoc with a 3 suffix.
477
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000478Library
479-------
480
Martin v. Löwis403117a2009-05-24 19:19:17 +0000481- Issue #5311: bdist_msi can now build packages that do not depend on a
482 specific Python version.
483
Raymond Hettingereb816952009-05-29 01:22:18 +0000484- Issue #5150: IDLE's format menu now has an option to strip trailing
485 whitespace.
486
Vinay Sajipaffbd872009-06-11 10:11:47 +0000487- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000488 the right type checkings anymore.
489
Thomas Heller00cfc372009-05-05 19:04:40 +0000490- Issue #4875: On win32, ctypes.util.find_library does no longer
491 return directories.
492
Georg Brandl243ad662009-05-05 09:00:19 +0000493- Issue #5142: Add the ability to skip modules while stepping to pdb.
494
Georg Brandl991f9202009-05-05 08:31:54 +0000495- Issue #1309567: Fix linecache behavior of stripping subdirectories when
496 looking for files given by a relative filename.
497
Georg Brandleaa84ef2009-05-05 08:14:33 +0000498- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
499 turtle demos in Demo/turtle.
500
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000501- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
502 extracting a file to the root directory.
503
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000504- Issue #5913: os.listdir() should fail for empty path on windows.
505
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000506- Issue #5084: unpickling now interns the attribute names of pickled objects,
507 saving memory and avoiding growth in size of subsequent pickles. Proposal
508 and original patch by Jake McGuire.
509
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000510- The json module now works exclusively with str and not bytes.
511
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000512- Issue #3959: The ipaddr module has been added to the standard library.
513 Contributed by Google.
514
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000515- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
516 error when a named pipe is encountered, rather than blocking infinitely.
517
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000518- Issue #5857: tokenize.tokenize() now returns named tuples.
519
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000520- Issue #4305: ctypes should now build again on mipsel-linux-gnu
521
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000522- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
523 string is already in normalized form, by performing a quick check beforehand.
524 Original patch by Rauli Ruohonen.
525
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000526- Issue #5853: calling a function of the mimetypes module from several threads
527 at once could hit the recursion limit if the mimetypes database hadn't been
528 initialized before.
529
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000530- Issue #5854: Updated __all__ to include some missing names and remove some
531 names which should not be exported.
532
Thomas Heller34596a92009-04-24 20:50:00 +0000533- Issue #3102: All global symbols that the _ctypes extension defines
534 are now prefixed with 'Py' or '_ctypes'.
535
536- Issue #5041: ctypes does now allow pickling wide character.
537
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000538- Issue #5812: For the two-argument form of the Fraction constructor,
539 Fraction(m, n), m and n are permitted to be arbitrary Rational
540 instances.
541
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000542- Issue #5812: Fraction('1e6') is valid: more generally, any string
543 that's valid for float() is now valid for Fraction(), with the
544 exception of strings representing NaNs and infinities.
545
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000546- Issue #5734: BufferedRWPair was poorly tested and had several glaring
547 bugs. Patch by Brian Quinlan.
548
R. David Murray9e94ddf2009-04-13 17:06:33 +0000549- Issue #1161031: fix readwrite select flag handling: POLLPRI now
550 results in a handle_expt_event call, not handle_read_event, and POLLERR
551 and POLLNVAL now call handle_close, not handle_expt_event. Also,
552 dispatcher now has an 'ignore_log_types' attribute for suppressing
553 log messages, which is set to 'warning' by default.
554
Matthias Klosea3d29e82009-04-07 13:13:10 +0000555- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
556 new arguments introduced in 2.5.
557
Walter Dörwald1b08b302009-04-25 14:13:56 +0000558- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
559 makeunicodedata.py and regenerated the Unicode database (This fixes
560 u'\u1d79'.lower() == '\x00').
561
Matthias Klose535336f2009-04-07 13:49:45 +0000562Extension Modules
563-----------------
564
Benjamin Petersone04b6272009-05-04 22:25:21 +0000565- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
566 pwd.
567
Mark Dickinsonea835e72009-04-19 20:40:33 +0000568- Issue #5463: In struct module, remove deprecated float coercion
569 for integer type codes: struct.pack('L', 0.3) should now raise
570 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
571 The version number has been bumped to 0.3.
572
Matthias Klose535336f2009-04-07 13:49:45 +0000573- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
574 using Berkley-DB.
575
Nick Coghlan47384702009-04-22 16:13:36 +0000576Tests
577-----
578
579- Issue #5354: New test support function import_fresh_module() makes
580 it easy to import both normal and optimised versions of modules.
581 test_heapq and test_warnings have been adjusted to use it, tests for
582 other modules with both C and Python implementations in the stdlib
583 can be adjusted to use it over time.
584
Walter Dörwald4ba80132009-04-25 12:48:43 +0000585- Issue #5837: Certain sequences of calls to set() and unset() for
586 support.EnvironmentVarGuard objects restored the environment variables
587 incorrectly on __exit__.
588
Benjamin Petersonb173f782009-05-05 22:31:58 +0000589C-API
590-----
591
592- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
593
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000594
Benjamin Petersond1735892009-03-07 18:46:21 +0000595What's New in Python 3.1 alpha 2?
596=================================
597
Benjamin Peterson88f14352009-04-04 21:06:52 +0000598*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000599
600Core and Builtins
601-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000602
Eric Smith1e1d7d22009-04-03 22:25:33 +0000603- Implement PEP 378, Format Specifier for Thousands Separator, for
604 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000605
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000606- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
607
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000608- Issue #5499: The 'c' code for argument parsing functions now only accepts a
609 byte, and the 'C' code only accepts a unicode character.
610
Georg Brandl406b3d82009-04-11 21:24:37 +0000611- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
612 when hitting the recursion limit under certain circumstances.
613
Brett Cannon0759dd62009-04-01 18:13:07 +0000614- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
615
Georg Brandlab6f2f62009-03-31 04:16:10 +0000616- Fix a segfault when running test_exceptions with coverage, caused by
617 insufficient checks in accessors of Exception.__context__.
618
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000619- Issue #5604: non-ASCII characters in module name passed to
620 imp.find_module() were converted to UTF-8 while the path is
621 converted to the default filesystem encoding, causing nonsense.
622
Benjamin Peterson09832742009-03-26 17:15:46 +0000623- Issue #5126: str.isprintable() returned False for space characters.
624
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000625- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
626 the end sys.path, for compatibility with the system install of Python.
627
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000628- Issue #4688: Add a heuristic so that tuples and dicts containing only
629 untrackable objects are not tracked by the garbage collector. This can
630 reduce the size of collections and therefore the garbage collection overhead
631 on long-running programs, depending on their particular use of datatypes.
632
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000633- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
634 improve its performance. Long divisions and remainder operations
635 are now between 50% and 150% faster.
636
Mark Dickinsonbd792642009-03-18 20:06:12 +0000637- Issue #4258: Make it possible to use base 2**30 instead of base
638 2**15 for the internal representation of integers, for performance
639 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
640 --enable-big-digits option to configure, which overrides the
641 default. Add sys.int_info structseq to provide information about
642 the internal format.
643
Mark Dickinson081dfee2009-03-18 14:47:41 +0000644- Issue #4474: PyUnicode_FromWideChar now converts characters outside
645 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
646 and sizeof(Py_UNICODE) == 2.
647
Eric Smith8ec90442009-03-14 12:29:34 +0000648- Issue #5237: Allow auto-numbered fields in str.format(). For
649 example: '{} {}'.format(1, 2) == '1 2'.
650
Antoine Pitrou652e7072009-03-13 19:25:20 +0000651- Issue #5392: when a very low recursion limit was set, the interpreter would
652 abort with a fatal error after the recursion limit was hit twice.
653
Matthias Klose042f1332009-04-04 14:32:42 +0000654- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
655 short file names.
656
Benjamin Petersond1735892009-03-07 18:46:21 +0000657Library
658-------
659
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000660- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000661 mailbox.MH.get_message().
662
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000663- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
664 error substitutions from non-strict codec error callbacks in
665 incrementalencoder and StreamWriter.
666
Georg Brandl33c28812009-04-01 23:07:29 +0000667- Issue #5656: Fix the coverage reporting when running the test suite with
668 the -T argument.
669
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000670- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
671
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000672- Issue #5624: Fix the _winreg module name still used in several modules.
673
Benjamin Petersona1b49012009-03-31 23:11:32 +0000674- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
675
Jesse Nollera9314042009-03-31 22:36:44 +0000676- Issue #5619: Multiprocessing children disobey the debug flag and causes
677 popups on windows buildbots. Patch applied to work around this issue.
678
Jesse Noller32d68c22009-03-31 18:48:42 +0000679- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
680
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000681- Issue #5387: Fixed mmap.move crash by integer overflow.
682
Jesse Nollerf8d00852009-03-31 03:25:07 +0000683- Issue #5261: Patch multiprocessing's semaphore.c to support context
684 manager use: "with multiprocessing.Lock()" works now.
685
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000686- Issue #5236: Change time.strptime() to only take strings. Didn't work with
687 bytes already but the failure was non-obvious.
688
Jesse Noller7af4ef82009-03-30 16:47:15 +0000689- Issue #5177: Multiprocessing's SocketListener class now uses
690 socket.SO_REUSEADDR on all connections so that the user no longer needs
691 to wait 120 seconds for the socket to expire.
692
Benjamin Peterson48e24782009-03-29 13:02:52 +0000693- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
694
Antoine Pitrou66994e12009-03-29 00:45:26 +0000695- Issue #1174606: Calling read() without arguments of an unbounded file
696 (typically /dev/zero under Unix) could crash the interpreter.
697
Benjamin Peterson59406a92009-03-26 17:10:29 +0000698- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
699 io.BufferedRandom have been deprecated for removal in Python 3.2.
700
Lars Gustäbel42e00912009-03-22 20:34:29 +0000701- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
702 forever on incomplete input. That caused tarfile.open() to hang when used
703 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
704 partial bzip2 compressed data.
705
Mark Dickinson79f52032009-03-17 23:12:51 +0000706- Issue #2110: Add support for thousands separator and 'n' type
707 specifier to Decimal.__format__
708
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000709- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
710 '>' alignment characters.
711
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000712- The error detection code in FileIO.close() could fail to reflect the `errno`
713 value, and report it as -1 instead.
714
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000715- Issue #5016: FileIO.seekable() could return False if the file position
716 was negative when truncated to a C int. Patch by Victor Stinner.
717
Mark Dickinsonae681df2009-03-21 10:26:31 +0000718Extension Modules
719-----------------
720
Benjamin Petersone099b372009-04-04 17:09:35 +0000721- Issue #5391: mmap now deals exclusively with bytes.
722
Mark Dickinsonae681df2009-03-21 10:26:31 +0000723- Issue #5463: In struct module, remove deprecated overflow wrapping
724 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000725 struct.error instead of returning b'\xff\xff\xff\xff'. The
726 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
727 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000728
Benjamin Petersond1735892009-03-07 18:46:21 +0000729
Benjamin Petersona58a6262009-03-07 16:34:40 +0000730What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000731================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000732
Benjamin Petersona58a6262009-03-07 16:34:40 +0000733*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000734
735Core and Builtins
736-----------------
737
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000738- The io module has been reimplemented in C for speed.
739
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000740- Give dict views an informative __repr__.
741
Eric Smith5e5c0db2009-02-20 14:25:03 +0000742- Issue #5247: Improve error message when unknown format codes are
743 used when using str.format() with str, int, and float arguments.
744
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000745- Issue #5249: time.strftime returned malformed string when format string
746 contained non ascii character on windows.
747
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000748- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
749 source has already been decoded into str.
750
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000751- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
752 rotating the object pointer by 4 bits to the right.
753
Mark Dickinson87ec0852009-02-09 17:15:59 +0000754- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
755 it now forces its argument to double before testing for infinity.
756
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000757- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
758 returns a non-number type.
759
Benjamin Peterson87618552009-02-08 15:00:52 +0000760- Issue #5182: Removed memoryview.__str__.
761
Mark Dickinsonc008a172009-02-01 13:59:22 +0000762- Issue #1717: Removed builtin cmp() function, dropped tp_compare
763 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000764 the type definition cmpfunc. The tp_compare slot has been renamed
765 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000766
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000767- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000768 were suppressing all exceptions. These include list() and bytearray().
769
Mark Dickinson1124e712009-01-28 21:25:58 +0000770- Issue #4707: round(x, n) now returns an integer if x is an integer.
771 Previously it returned a float.
772
Antoine Pitroub52ec782009-01-25 16:34:23 +0000773- Issue #4753: By enabling a configure option named '--with-computed-gotos'
774 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
775 evaluation loop is compiled with a new dispatch mechanism which gives
776 speedups of up to 20%, depending on the system, on various benchmarks.
777
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000778- Issue #4874: Most builtin decoders now reject unicode input.
779
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000780- Issue #4842: Don't allow trailing 'L' when constructing an integer
781 from a string.
782
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000783- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
784
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000785- Issue #4838: When a module is deallocated, free the memory backing the
786 optional module state data.
787
Mark Dickinson8055afd2009-01-17 10:04:45 +0000788- Issue #4910: Rename nb_long slot to nb_reserved, and change its
789 type to (void *).
790
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000791- Issue #4935: The overflow checking code in the expandtabs() method common
792 to str, bytes and bytearray could be optimized away by the compiler, letting
793 the interpreter segfault instead of raising an error.
794
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000795- Issue #3720: Fix a crash when an iterator modifies its class and removes its
796 __next__ method.
797
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000798- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
799 function no longer attempt to call the __long__ slot to convert an object
800 to an integer. Only the __int__ and __trunc__ slots are examined.
801
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000802- Issue #4893: Use NT threading on CE.
803
Martin v. Löwisec59d042009-01-12 07:59:10 +0000804- Issue #4915: Port sysmodule to Windows CE.
805
Antoine Pitrouab868312009-01-10 15:40:25 +0000806- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
807 common cases are optimized thanks to a dedicated fast path and a moderate
808 amount of loop unrolling.
809
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000810- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
811 collecting the oldest generation) so that allocating lots of objects without
812 destroying them does not show quadratic performance. Based on a proposal by
813 Martin von Löwis at
814 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
815
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000816- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000817 having been closed (for instance, a read() call could return some
818 previously buffered data). Patch by Dmitry Vasiliev.
819
Antoine Pitrou05608432009-01-09 18:53:14 +0000820- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
821 flag to work properly. Furthermore, when specifying -u, the text stdout
822 and stderr streams have line-by-line buffering enabled (the default being
823 to buffer arbitrary chunks of data).
824
Raymond Hettinger35631532009-01-09 03:58:09 +0000825- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
826 instead of ints (reducing its size from 4 to 8 times thereby reducing
827 Python's overall memory).
828
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000829- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
830 an existing .py counterpart, override the co_filename attributes of all
831 code objects if the original filename is obsolete (which can happen if the
832 file has been renamed, moved, or if it is accessed through different paths).
833 Patch by Ziga Seilnacht and Jean-Paul Calderone.
834
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000835- Issue #4580: Fix slicing of memoryviews when the item size is greater than
836 one byte. Also fixes the meaning of len() so that it returns the number of
837 items, rather than the size in bytes.
838
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000839- Issue #4075: Use OutputDebugStringW in Py_FatalError.
840
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000841- Issue #4747: When the terminal does not use utf-8, executing a script with
842 non-ascii characters in its name could fail with a "SyntaxError: None" error.
843
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000844- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000845 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000846
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000847- Issue #3680: Reference cycles created through a dict, set or deque iterator
848 did not get collected.
849
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000850- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
851 where the tp_hash and tp_dict slots are both NULL.
852
Georg Brandlccc47b62008-12-28 11:44:14 +0000853- Issue #4759: None is now allowed as the first argument of
854 bytearray.translate(). It was always allowed for bytes.translate().
855
Skip Montanaro80072cb2008-12-23 03:51:14 +0000856- Added test case to ensure attempts to read from a file opened for writing
857 fail.
858
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000859- Issue #3106: Speedup some comparisons (str/str and int/int).
860
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000861- Issue #2183: Simplify and optimize bytecode for list, dict and set
862 comprehensions. Original patch for list comprehensions by Neal Norwitz.
863
Antoine Pitrou621601a2008-12-17 23:18:19 +0000864- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
865 print elapsed times, not only when some objects are uncollectable /
866 unreachable. Original patch by Neil Schemenauer.
867
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000868- Issue #3439: Add a bit_length method to int.
869
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000870- Issue #2173: When getting device encoding, check that return value of
871 nl_langinfo is not the empty string. This was causing silent build
872 failures on OS X.
873
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000874- Issue #4597: Fixed several opcodes that weren't always propagating
875 exceptions.
876
877- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000878 context manager returns a value that cannot be converted to a bool.
879
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000880- Issue #4445: Replace "sizeof(PyBytesObject)" with
881 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
882 bytes instances. On a typical machine this saves 3 bytes of memory
883 (on average) per allocation of a bytes instance.
884
Christian Heimesa872de52008-12-05 08:26:55 +0000885- Issue #4533: File read operation was dreadfully slow due to a slowly
886 growing read buffer. Fixed by using the same growth rate algorithm as
887 Python 2.x.
888
Antoine Pitrou5504e892008-12-06 21:27:53 +0000889- Issue #4509: Various issues surrounding resize of bytearray objects to
890 which there are buffer exports (e.g. memoryview instances).
891
Georg Brandlf9734072008-12-07 15:30:06 +0000892- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
893 method on file objects with closefd=False. The file descriptor is still
894 kept open but the file object behaves like a closed file. The ``FileIO``
895 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000896
Antoine Pitroubc420402008-12-07 20:14:49 +0000897- Issue #4569: Interpreter crash when mutating a memoryview with an item size
898 larger than 1.
899
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000900- Issue #4748: Lambda generators no longer return a value.
901
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000902- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
903
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000904- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
905 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
906 step. This avoids problems with counting UTF-8 bytes that ignores the effect
907 of using the replace error handler in PyUnicode_DecodeUTF8().
908
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000909Library
910-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000911
Tarek Ziadé3cc12f62009-07-22 09:03:01 +0000912- Issue #6545: Removed assert statements in distutils.Extension, so the
913 behavior is similar when used with -O.
914
Tarek Ziadé24448fa2009-07-11 11:01:14 +0000915- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
916 "PyInit" prefix, rather than "init".
917
Tarek Ziadé7e646002009-07-10 09:16:07 +0000918- Issue #6455: Fixed test_build_ext under win32.
919
Tarek Ziadé35c88a82009-07-04 02:05:51 +0000920- Issue #6413: Fixed the log level in distutils.dist for announce.
921
Tarek Ziadé385029f2009-07-03 08:37:27 +0000922- Issue #6403: Fixed package path usage in build_ext.
923
Tarek Ziadé2c3de402009-06-29 16:46:14 +0000924- Issue #6365: Distutils build_ext inplace mode was copying the compiled
925 extension in a subdirectory if the extension name had dots.
926
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000927- Issue #6287: Added the license field in Distutils documentation.
928
Tarek Ziadéff543362009-06-11 09:25:41 +0000929- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
930
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000931- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
932 in Makefiles. This prevents compile errors when using syntax like:
933 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
934
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +0000935- Issue #6131: test_modulefinder leaked when run after test_distutils.
936 Patch by Hirokazu Yamamoto.
937
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000938- Issue #6048: Now Distutils uses the tarfile module in archive_util.
939
Vinay Sajipaffbd872009-06-11 10:11:47 +0000940- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +0000941 and tests on pywin32 by Tim Golden.
942
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000943- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
944
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000945- Issue #6046: Fixed the library extension when distutils build_ext is used
946 inplace. Initial patch by Roumen Petrov.
947
Vinay Sajipaffbd872009-06-11 10:11:47 +0000948- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000949 subcommand.
950
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000951- Issue #6022: a test file was created in the current working directory by
952 test_get_outputs in Distutils.
953
Tarek Ziadéff0e5002009-05-12 17:14:01 +0000954- Issue #5977: distutils build_ext.get_outputs was not taking into account the
955 inplace option. Initial patch by kxroberto.
956
Tarek Ziadé06fbee12009-05-10 10:34:01 +0000957- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
958 for old-style extensions.
959
Tarek Ziadébe5b1b92009-05-09 10:09:11 +0000960- Issue #5976: Fixed Distutils test_check_environ.
961
Tarek Ziadé5662d3e2009-05-07 21:24:43 +0000962- Issue #5941: Distutils build_clib command was not working anymore because
963 of an incomplete costumization of the archiver command. Added ARFLAGS in the
964 Makefile besides AR and make Distutils use it. Original patch by David
965 Cournapeau.
966
R. David Murrayb507d2e2009-04-29 15:34:32 +0000967- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
968
Vinay Sajipaffbd872009-06-11 10:11:47 +0000969- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +0000970 anymore.
971
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000972- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000973 sysconfig.get_config_vars.
974
Tarek Ziadé23336082009-04-25 12:39:56 +0000975- Issue #4951: Fixed failure in test_httpservers.
976
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000977- Issue #5795: Fixed test_distutils failure on Debian ppc.
978
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000979- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
980
Georg Brandl1f9fa312009-04-27 16:42:58 +0000981- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
982 a value in SafeConfigParser.
983
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000984- Issue #5732: added a new command in Distutils: check.
985
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000986- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000987 platforms. Initial patch by Paul Moore.
988
Tarek Ziadéf6370502009-04-05 22:57:21 +0000989- Issue #5095: Added bdist_msi to the list of bdist supported formats.
990 Initial fix by Steven Bethard.
991
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000992- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
993 Initial fix by Wayne Davison.
994
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000995- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000996
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000997- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000998
Brett Cannonf47e84c2009-04-01 16:06:01 +0000999- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1000 instead of performing them in functions. Helps prevent import deadlocking in
1001 threads.
1002
R. David Murraye59482e2009-04-01 03:42:00 +00001003- Issue #2522: locale.format now checks its first argument to ensure it has
1004 been passed only one pattern, avoiding mysterious errors where it appeared
1005 that it was failing to do localization.
1006
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001007- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1008 Brandl.
1009
Antoine Pitrou350370c2009-03-14 00:13:13 +00001010- Issue #1222: locale.format() bug when the thousands separator is a space
1011 character.
1012
Tarek Ziadé516db942009-03-11 12:52:00 +00001013- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1014 Tim Golden.
1015
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001016- collections.deque() objects now have a read-only attribute called maxlen.
1017
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001018- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1019 it is has been populated and properly configured in order to prevent
1020 window flashing.
1021
Guilherme Polo56f5be52009-03-07 01:54:57 +00001022- Issue #4792: Prevent a segfault in _tkinter by using the
1023 guaranteed to be safe interp argument given to the PythonCmd in place of
1024 the Tcl interpreter taken from a PythonCmd_ClientData.
1025
1026- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1027
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001028- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1029 Original patch by Akira Kitada.
1030
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001031- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1032
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001033- Issue #5385: Fixed mmap crash after resize failure on windows.
1034
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001035- Issue #5179: Fixed subprocess handle leak on failure on windows.
1036
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001037- PEP 372: Added collections.OrderedDict().
1038
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001039- The _asdict() for method for namedtuples now returns an OrderedDict().
1040
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001041- configparser now defaults to using an ordered dictionary.
1042
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001043- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1044 import guess_extension`` was used.
1045
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001046- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1047 with same tagname but larger size than first map. (Windows)
1048
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001049- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1050 overrun.
1051
Tarek Ziadéf0721222009-02-28 10:16:43 +00001052- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1053 bdist_rpm command.
1054
1055- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1056
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001057- Issue #5052: make Distutils compatible with 2.3 again.
1058
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001059- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1060 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001061
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001062- Issue #5287: Add exception handling around findCaller() call to help out
1063 IronPython.
1064
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001065- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1066 The file was resized to wrong size.
1067
1068- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1069
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001070- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001071 from the package_data and the data_files metadata.
1072
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001073- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001074 support.TempdirManager, to avoid writing in the tests directory.
1075
Tarek Ziadé68c50952009-02-13 23:04:17 +00001076- Issue #4524: distutils build_script command failed with --with-suffix=3.
1077 Initial patch by Amaury Forgeot d'Arc.
1078
Tarek Ziadé811d6242009-02-13 22:26:15 +00001079- Issue #2461: added tests for distutils.util
1080
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001081- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1082 which inherited from numbers.py which did not have __slots__ defined. The
1083 numbers hierarchy now has its own __slots__ declarations.
1084
Antoine Pitroub353c122009-02-11 00:39:14 +00001085- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1086 encoding.
1087
Thomas Heller465c8022009-02-10 18:59:04 +00001088- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1089 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1090
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001091- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1092 under NT and OS2. Patch by Philip Jenvey.
1093
Brett Cannonbefb14f2009-02-10 02:10:16 +00001094- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1095 to be recreated. This avoids a timing hole thanks to the old reliance on the
1096 ctime of the files involved.
1097
Guilherme Polob681df42009-02-09 22:33:59 +00001098- Issue #5122: Synchronize tk load failure check to prevent a potential
1099 deadlock.
1100
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001101- Issue #1818: collections.namedtuple() now supports a keyword argument
1102 'rename' which lets invalid fieldnames be automatically converted to
1103 positional names in the form, _1, _2, ...
1104
Guilherme Poloae098992009-02-09 16:44:24 +00001105- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1106
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001107- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1108 public documented method ``ZipImporter.get_filename()``.
1109
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001110- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1111 the execution of packages by looking for and executing a ``__main__``
1112 submodule when a package name is supplied. Initial patch by Andi
1113 Vajda.
1114
Guilherme Polo491aee22009-02-06 23:16:11 +00001115- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1116 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1117 Tkapp_Call when calling from a thread different than the one that created
1118 the Tcl interpreter. Patch by Robert Hancock.
1119
Eric Smith0e5b5622009-02-06 01:32:42 +00001120- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1121 Ross Light.
1122
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001123- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001124 environment/Makefile. Patch by Douglas Greiman.
1125
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001126- Issue #1276768: The verbose option was not used in the code of
1127 distutils.file_util and distutils.dir_util.
1128
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001129- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001130 --enabled-shared activated. Initial patch by Dave Peterson.
1131
Guilherme Polo7f423952009-02-02 21:17:09 +00001132- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1133
Raymond Hettinger85602262009-02-03 04:19:10 +00001134- The shelve module now defaults to pickle protocol 3.
1135
Brett Cannone61426e2009-01-30 01:31:34 +00001136- Fix a bug in the trace module where a bytes object from co_lnotab had its
1137 items being passed through ord().
1138
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001139- Issue #2047: shutil.move() could believe that its destination path was
1140 inside its source path if it began with the same letters (e.g. "src" vs.
1141 "src.new").
1142
Guilherme Polo5f238482009-01-28 14:41:10 +00001143- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1144
Raymond Hettinger89e12962009-01-26 02:09:03 +00001145- Removed isSequenceType(), isMappingType, and isNumberType() from the
1146 operator module; use the abstract base classes instead. Also removed
1147 the repeat() function; use mul() instead.
1148
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001149- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001150 collections.namedtuple() relied on __name__ being defined.
1151
1152- Backport importlib from Python 3.1. Only the import_module() function has
1153 been backported to help facilitate transitions from 2.7 to 3.1.
1154
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001155- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1156 the tar file was overriden by the gztar one.
1157
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001158- Issue #4863: distutils.mwerkscompiler has been removed.
1159
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001160- Added a new itertools functions: combinations_with_replacement()
1161 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001162
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001163- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001164 allowed non-integer arguments.
1165
Jesse Noller41faa542009-01-25 03:45:53 +00001166- Fix and properly document the multiprocessing module's logging
1167 support, expose the internal levels and provide proper usage
1168 examples.
1169
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001170- Issue #1672332: fix unpickling of subnormal floats, which was
1171 producing a ValueError on some platforms.
1172
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001173- Issue #3881: Help Tcl to load even when started through the
1174 unreadable local symlink to "Program Files" on Vista.
1175
Martin v. Löwis59e47792009-01-24 14:10:07 +00001176- Issue #4710: Extract directories properly in the zipfile module;
1177 allow adding directories to a zipfile.
1178
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001179- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001180 --without-threads argument. When this occurs, _multiprocessing will
1181 be disabled, and not compiled.
1182
Antoine Pitrou08838b62009-01-21 00:55:13 +00001183- Issue #5008: When a file is opened in append mode with the new IO library,
1184 do an explicit seek to the end of file (so that e.g. tell() returns the
1185 file size rather than 0). This is consistent with the behaviour of the
1186 traditional 2.x file object.
1187
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001188- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1189 parameter was set.
1190
Mark Dickinson8dd05142009-01-20 20:43:58 +00001191- Issue #4842: Always append a trailing 'L' when pickling longs using
1192 pickle protocol 0. When reading, the 'L' is optional.
1193
Brett Cannonafccd632009-01-20 02:21:27 +00001194- Add the importlib package.
1195
Jesse Noller9a0fc972009-01-18 21:12:58 +00001196- Issue #4301: Patch the logging module to add processName support, remove
1197 _check_logger_class from multiprocessing.
1198
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001199- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001200 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001201
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001202- Issue #4959: inspect.formatargspec now works for keyword only arguments
1203 without defaults.
1204
Jesse Noller6214edd2009-01-19 16:23:53 +00001205- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1206 for *nix machines for negative handles and large int handles. Without this check
1207 it is possible to segfault the interpreter.
1208
Jesse Nollerb0516a62009-01-18 03:11:38 +00001209- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1210 in sharedctypes.py.
1211
1212- Issue #1225107: inspect.isclass() returned True for instances with a custom
1213 __getattr__.
1214
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001215- Issue #3826 and #4791: The socket module now closes the underlying socket
1216 appropriately when it is being used via socket.makefile() objects
1217 rather than delaying the close by waiting for garbage collection to do it.
1218
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001219- Issue #1696199: Add collections.Counter() for rapid and convenient
1220 counting.
1221
Antoine Pitrou308705e2009-01-10 16:22:51 +00001222- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1223
Thomas Heller5e4e4272009-01-08 09:34:20 +00001224- Issue #4867: Fixed a crash in ctypes when passing a string to a
1225 function without defining argtypes.
1226
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001227- Issue #4272: Add an optional argument to the GzipFile constructor to override
1228 the timestamp in the gzip stream. The default value remains the current time.
1229 The information can be used by e.g. gunzip when decompressing. Patch by
1230 Jacques Frechet.
1231
Mark Dickinson315a20a2009-01-04 21:34:18 +00001232- Restore Python 2.3 compatibility for decimal.py.
1233
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001234- Issue #3638: Remove functions from _tkinter module level that depend on
1235 TkappObject to work with multiple threads.
1236
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001237- Issue #4718: Adapt the wsgiref package so that it actually works with
1238 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001239 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1240
Raymond Hettinger771ed762009-01-03 19:20:32 +00001241- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1242 to the decimal module.
1243
Georg Brandl3a9b0622009-01-03 22:07:57 +00001244- Fractions.from_float() no longer loses precision for integers too big to
1245 cast as floats.
1246
Mark Dickinsonf9236412009-01-02 23:23:21 +00001247- Issue #4812: add missing underscore prefix to some internal-use-only
1248 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1249
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001250- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001251 did unnecessary work in the common case where no key function was specified.
1252
Georg Brandlb1441c72009-01-03 22:33:39 +00001253- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1254 the function is not a generator.
1255
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001256- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1257 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001258
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001259- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001260 function. Original patch by Thomas Heller.
1261
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001262- Issue #3767: Convert Tk object to string in tkColorChooser.
1263
Martin v. Löwise354d782008-12-29 16:03:04 +00001264- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1265
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001266- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1267 the code under test can be written inline if more practical.
1268
Georg Brandldb7b6b92009-01-01 15:53:14 +00001269- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1270 works as expected in the interactive environment.
1271
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001272- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1273 Gabriel Genellina.
1274
Antoine Pitrou180a3362008-12-14 16:36:46 +00001275- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1276 boundary.
1277
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001278- Issue #4223: inspect.getsource() will now correctly display source code
1279 for packages loaded via zipimport (or any other conformant PEP 302
1280 loader). Original patch by Alexander Belopolsky.
1281
1282- Issue #4201: pdb can now access and display source code loaded via
1283 zipimport (or any other conformant PEP 302 loader). Original patch by
1284 Alexander Belopolsky.
1285
1286- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1287 302 conformant loader) will now work correctly in most cases (they
1288 are still subject to the constraints that exist for all code running
1289 from inside a module loaded via a PEP 302 loader and attempting to
1290 perform IO operations based on __file__). Original patch by
1291 Alexander Belopolsky.
1292
1293- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1294 allows backporting to maintenance branches. Original patch by
1295 Alexander Belopolsky.
1296
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001297- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1298 a non-ASCII letter.
1299
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001300- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1301
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001302- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1303 codec cannot be found. This is for compatibility with the builtin behavior.
1304
Facundo Batista708d5812008-12-11 04:20:07 +00001305- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1306 give correct results in the case where one argument is a quiet NaN
1307 and the other is a finite number that requires rounding.
1308
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001309- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1310 libs.
1311
Georg Brandlf9734072008-12-07 15:30:06 +00001312- Added the subprocess.check_call_output() convenience function to get output
1313 from a subprocess on success or raise an exception on error.
1314
1315- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1316 support unusual filenames (such as those containing semi-colons) in
1317 Content-Disposition headers.
1318
1319- Issue #4384: Added logging integration with warnings module using
1320 captureWarnings(). This change includes a NullHandler which does nothing;
1321 it will be of use to library developers who want to avoid the "No handlers
1322 could be found for logger XXX" message which can appear if the library user
1323 doesn't configure logging.
1324
1325- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1326 exception.
1327
Georg Brandleee31162008-12-07 15:15:22 +00001328- Issue #4529: fix the parser module's validation of try-except-finally
1329 statements.
1330
1331- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1332 not a malformed option.
1333
1334- Added the subprocess.check_output() convenience function to get output
1335 from a subprocess on success or raise an exception on error.
1336
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001337- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1338 the corresponding tests now pass.
1339
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001340- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1341 it was calling the wrong open() function.
1342
Fred Drake9a0a65b2008-12-04 19:24:50 +00001343- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1344 support unusual filenames (such as those containing semi-colons) in
1345 Content-Disposition headers.
1346
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001347- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1348 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1349
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001350- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1351 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1352 and getservbyport().
1353
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001354- Windows locale mapping updated to Vista.
1355
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001356Tools/Demos
1357-----------
1358
Antoine Pitrou8a681222009-02-07 17:13:31 +00001359- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1360 and make it 2.6-compatible.
1361
Guilherme Poloa7d27972009-01-28 16:06:51 +00001362- Ttk demos added in Demo/tkinter/ttk/
1363
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001364- Issue #4677: add two list comprehension tests to pybench.
1365
Georg Brandlb1441c72009-01-03 22:33:39 +00001366
1367Build
1368-----
1369
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001370- Issue #6094: Build correctly with Subversion 1.7.
1371
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001372- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1373
Antoine Pitrou8966c992009-05-01 21:18:27 +00001374- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1375 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1376
Matthias Klose55708cc2009-04-30 08:06:49 +00001377- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001378 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001379
Matthias Klose906785c2009-02-22 23:18:38 +00001380- Link the shared python library with $(MODLIBS).
1381
Martin v. Löwis11f72102009-02-10 13:13:30 +00001382- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1383
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001384- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1385
Martin v. Löwise97637d2009-01-11 09:45:11 +00001386- Issue #4895: Use _strdup on Windows CE.
1387
Georg Brandlb1441c72009-01-03 22:33:39 +00001388- Issue #4472: "configure --enable-shared" now works on OSX
1389
1390- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1391
1392- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1393
1394- Issue #4289: Remove Cancel button from AdvancedDlg.
1395
1396- Issue #1656675: Register a drop handler for .py* files on Windows.
1397
1398- Issue #4120: Exclude manifest from extension modules in VS2008.
1399
1400- Issue #4091: Install pythonxy.dll in system32 again.
1401
1402- Issue #4018: Disable "for me" installations on Vista.
1403
1404- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1405
1406- Issue #4204: Fixed module build errors on FreeBSD 4.
1407
1408
1409C-API
1410-----
1411
Mark Dickinson21776072009-02-10 16:13:25 +00001412- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1413 for negative arguments. Previously, it raised TypeError.
1414
Georg Brandlb1441c72009-01-03 22:33:39 +00001415- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1416
1417- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1418 the GIL is released, or owned by another thread.
1419
1420- Issue #4122: On Windows, fix a compilation error when using the
1421 Py_UNICODE_ISSPACE macro in an extension module.
1422
1423
Mark Dickinsone675f082008-12-11 21:56:00 +00001424Extension Modules
1425-----------------
1426
Gregory P. Smith365a1862009-02-12 07:35:29 +00001427- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1428 supporting objects as input no matter how it was compiled (built in
1429 implementations or external openssl library).
1430
Mark Dickinson29500f62009-01-15 15:36:10 +00001431- Issue #4397: Fix occasional test_socket failure on OS X.
1432
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001433- Issue #4279: Fix build of parsermodule under Cygwin.
1434
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001435- Issue #4751: hashlib now releases the GIL when hashing large buffers
1436 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1437 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1438
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001439- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1440
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001441- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1442 or decompress several streams at once on multi-CPU systems. Also, the GIL
1443 is now released when computing the CRC of a large buffer. Patch by ebfe.
1444
Georg Brandlb1441c72009-01-03 22:33:39 +00001445- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1446
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001447- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1448
Mark Dickinsone675f082008-12-11 21:56:00 +00001449- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1450 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001451
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001452- Issue #4583: array.array would not always prohibit resizing when a buffer
1453 has been exported, resulting in an interpreter crash when accessing the
1454 buffer.
1455
Martin v. Löwis841edad2008-11-30 10:36:49 +00001456
Jack Diederiche0cbd692009-04-01 04:27:09 +00001457- Issue #5228: Make functools.partial objects can now be pickled.
1458
Guilherme Polo9de29af2009-01-28 20:40:48 +00001459Tests
1460-----
1461
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001462- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1463 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1464 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1465 skip the tests if DISPLAY is defined but can't be used.
1466
R. David Murraya21e4ca2009-03-31 23:16:50 +00001467- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001468 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001469 from test support, which does the conversion.
1470
Guilherme Polo9de29af2009-01-28 20:40:48 +00001471- Issue #5083: New 'gui' resource for regrtest.
1472
1473
Brett Cannon7317c1e2008-11-25 19:19:17 +00001474Docs
1475----
1476
Georg Brandl52b92cc2008-05-25 09:43:03 +00001477
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001478**(For information about older versions, consult the HISTORY file.)**