blob: a740b33c7635cf0c20941e5b3521043419f6ccf3 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Peterson46ea4f72009-06-27 21:40:27 +00007What's New in Python 3.2 Alpha 1?
8=================================
9
10*Release date: XX-XXX-XXX*
11
12Core and Builtins
13-----------------
14
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000015- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
16
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000017- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
18 object, and not an int. Fix the corresponding error message, and the
19 documentation.
20
Benjamin Petersonf1664ae2009-07-01 01:28:55 +000021- The deprecated PyCObject has been removed.
22
Mark Dickinson835a6c82009-06-30 15:45:17 +000023- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
24 This fixes a build failure on HP-UX: int32_t and uint32_t are
25 defined in inttypes.h instead of stdint.h on that platform.
26
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +000027- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +000028 the 'surrogateescape' error handler, a string which contains unpaired
29 surrogates.
30
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +000031- Issue #4856: Remove checks for win NT.
32
Benjamin Peterson466a7822009-07-02 21:44:01 +000033C-API
34-----
35
Benjamin Peterson89b89172009-07-03 13:30:25 +000036- Issue #6405: Remove duplicatet type declarations in descrobject.h.
37
Benjamin Peterson466a7822009-07-02 21:44:01 +000038- The code flags for old __future__ features are now available again.
39
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000040Library
41-------
42
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +000043- Issue #6358: The exit status of a command started with os.popen() was
44 reported differently than it did with python 2.x.
45
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +000046- Issue #6323: The pdb debugger did not exit when running a script with a
47 syntax error.
48
Gregory P. Smithd06fa472009-07-04 02:46:54 +000049- Issue #3392: The subprocess communicate() method no longer fails in select()
50 when file descriptors are large; communicate() now uses poll() when possible.
51
Antoine Pitrou54923952009-07-01 14:53:06 +000052- Issue #6369: Fix an RLE decompression bug in the binhex module.
53
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +000054- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
55
Benjamin Peterson5a6deb42009-06-28 21:35:31 +000056- The deprecated function string.maketrans has been removed.
57
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +000058- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
59 sys.path.
60
61Extension Modules
62-----------------
63
64- Issue #4509: array.array objects are no longer modified after an operation
65 failing due to the resize restriction in-place when the object has exported
66 buffers.
67
Martin v. Löwis95c46012009-06-28 09:36:14 +000068Build
69-----
70
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +000071- Issue 4601: 'make install' did not set the appropriate permissions on
72 directories.
73
Martin v. Löwis95c46012009-06-28 09:36:14 +000074- Issue 5390: Add uninstall icon independent of whether file
75 extensions are installed.
76
Brett Cannonb49c70c2009-07-15 04:08:33 +000077Tests
78-----
79
80- Removed importlib's custom test discovery code and switched to
81 unittest.TestLoader.discover().
82
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000083
Benjamin Peterson01bf2362009-06-13 14:50:22 +000084What's New in Python 3.1?
85=========================
86
87*Release date: 27-June-2009*
88
89Core and Builtins
90-----------------
91
Mark Dickinsonad195562009-06-24 19:01:32 +000092- Issue #6334: Fix bug in range length calculation for ranges with
93 large arguments.
94
Raymond Hettinger159eac92009-06-23 20:38:54 +000095- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
96 because it wasn't recognized as a sequence).
97
Benjamin Peterson01bf2362009-06-13 14:50:22 +000098Library
99-------
100
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000101- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000102
Facundo Batista10706e22009-06-19 20:34:30 +0000103- Issue #6274: Fixed possible file descriptors leak in subprocess.py
104
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000105- Accessing io.StringIO.buffer now raises an AttributeError instead of
106 io.UnsupportedOperation.
107
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000108- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000109 (On Unix)
110
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000111- Issue #1202: zipfile module would cause a struct.error when attempting to
112 store files with a CRC32 > 2**31-1.
113
Matthias Kloseab2b7552009-06-22 13:05:52 +0000114Extension Modules
115-----------------
116
117- Issue #5590: Remove unused global variable in pyexpat extension.
118
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000119
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000120What's New in Python 3.1 Release Candidate 2?
121=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000122
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000123*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000124
125Core and Builtins
126-----------------
127
Raymond Hettinger94f55832009-06-12 18:40:16 +0000128- Fixed SystemError triggered by "range([], 1, -1)".
129
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000130- Issue #5924: On Windows, a large PYTHONPATH environment variable
131 (more than 255 characters) would be completely ignored.
132
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000133- Issue #4547: When debugging a very large function, it was not always
134 possible to update the lineno attribute of the current frame.
135
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000136- Issue #5330: C functions called with keyword arguments were not reported by
137 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
138
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000139Library
140-------
141
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000142- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000143 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000144 Popen. Tested under win32 to build the py-postgresql project.
145
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000146- Issue #6258: Support AMD64 in bdist_msi.
147
R. David Murray58641de2009-06-12 15:33:19 +0000148- Issue #6195: fixed doctest to no longer try to read 'source' data from
149 binary files.
150
Vinay Sajipaffbd872009-06-11 10:11:47 +0000151- Issue #5262: Fixed bug in next rollover time computation in
152 TimedRotatingFileHandler.
153
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000154- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
155 errors property. Additionally, the errors and encoding properties of StringIO
156 are always None now.
157
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000158- Issue #6137: The pickle module now translates module names when loading
159 or dumping pickles with a 2.x-compatible protocol, in order to make data
160 sharing and migration easier. This behaviour can be disabled using the
161 new `fix_imports` optional argument.
162
Raymond Hettinger40925d22009-06-04 18:32:39 +0000163- Removed the ipaddr module.
164
Georg Brandlb54d8012009-06-04 09:11:51 +0000165- Issue #3613: base64.{encode,decode}string are now called
166 base64.{encode,decode}bytes which reflects what type they accept and return.
167 The old names are still there as deprecated aliases.
168
Georg Brandl317185a2009-06-04 09:00:56 +0000169- Issue #5767: Remove sgmlop support from xmlrpc.client.
170
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000171- Issue #6150: Fix test_unicode on wide-unicode builds.
172
Antoine Pitrouc06de472009-05-30 21:04:26 +0000173- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
174 parameters.
175
Martin v. Löwis79b13872009-06-01 04:13:14 +0000176Windows
177-------
178
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000179- Issue #6221: Delete test registry key before running the test.
180
Martin v. Löwis79b13872009-06-01 04:13:14 +0000181- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
182
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000183C-API
184-----
185
186- Issue #5735: Python compiled with --with-pydebug should throw an
187 ImportError when trying to import modules compiled without
188 --with-pydebug, and vice-versa.
189
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000190
Brett Cannonc6d936e2009-06-07 20:09:53 +0000191Build
192-----
193
194- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
195 added LIBS to OS X framework builds.
196
Ronald Oussoren99aab652009-06-08 21:22:57 +0000197- Issue #5809: Specifying both --enable-framework and --enable-shared is
198 an error. Configure now explicity tells you about this.
199
200
Brett Cannonc6d936e2009-06-07 20:09:53 +0000201
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000202What's New in Python 3.1 release candidate 1?
203=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000204
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000205*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000206
207Core and Builtins
208-----------------
209
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000210- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
211 of the command line.
212
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000213- Issue #6012: Add cleanup support to O& argument parsing.
214
Eric Smith41669ca2009-05-23 14:23:22 +0000215- Issue #6089: Fixed str.format with certain invalid field specifiers
216 that would raise SystemError.
217
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000218- Issue #5982: staticmethod and classmethod now expose the wrapped
219 function with __func__.
220
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000221- Added support for multiple context managers in the same with-statement.
222 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000223
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000224- Issue #5829: complex("1e500") no longer raises OverflowError. This
225 makes it consistent with float("1e500") and interpretation of real
226 and imaginary literals.
227
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000228- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
229
R. David Murraydd226ea2009-05-13 12:27:21 +0000230- Issue #5994: the marshal module now has docstrings.
231
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000232- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
233 (1) inf and nan strings with trailing whitespace were incorrectly
234 rejected; (2) parsing of strings representing infinities and nans
235 was locale aware; and (3) the interpretation of fromhex('-nan')
236 didn't match that of float('-nan').
237
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000238Library
239-------
240
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000241- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
242
R. David Murrayfb123912009-05-28 18:19:00 +0000243- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
244
R. David Murray1f1b9d32009-05-27 20:56:59 +0000245- Issue #6121: pydoc now ignores leading and trailing spaces in the
246 argument to the 'help' function.
247
Georg Brandlfaf41492009-05-26 18:31:11 +0000248- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
249 arguments for strings with a space in them.
250
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000251- collections.namedtuple() was not working with the following field
252 names: cls, self, tuple, itemgetter, and property.
253
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000254- In unittest, using a skipping decorator on a class is now equivalent to
255 skipping every test on the class. The ClassTestSuite class has been removed.
256
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000257- Issue #6050: Don't fail extracting a directory from a zipfile if
258 the directory already exists.
259
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000260- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
261 than an int, which makes some operations possible under 64-bit Linux (e.g.
262 DN_MULTISHOT with F_NOTIFY).
263
Antoine Pitrou716c4442009-05-23 19:04:03 +0000264- Issue #5761: Add the name of the underlying file to the repr() of various
265 IO objects.
266
R. David Murraycaa27b72009-05-23 18:49:56 +0000267- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
268 by Musashi Tamura, tests by Marcin Bachry.
269
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000270- Issue #1983: Fix functions taking or returning a process identifier to use
271 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
272 a process identifier type wider than the standard C integer type.
273
R. David Murray87e20742009-05-23 01:30:26 +0000274- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
275 Patch by Farhan Ahmad, test by Marcin Bachry.
276
Antoine Pitrou6e610062009-05-15 17:04:50 +0000277- Issue #2116: Weak references and weak dictionaries now support copy()ing and
278 deepcopy()ing.
279
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000280- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
281
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000282- Issue #5918: Fix a crash in the parser module.
283
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000284- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
285
Antoine Pitroue4501852009-05-14 18:55:55 +0000286- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
287 library. This means, for example, that opening an UTF-16 text file in
288 append mode doesn't add a BOM at the end of the file if the file isn't
289 empty.
290
R. David Murray74b89242009-05-13 17:33:03 +0000291- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
292 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
293 corrects a pydoc regression.
294
R. David Murray99352742009-05-07 18:24:38 +0000295- Issue 5955: aifc's close method did not close the file it wrapped,
296 now it does. This also means getfp method now returns the real fp.
297
Benjamin Peterson932073a2009-05-23 16:14:33 +0000298Installation
299------------
300
301- Issue #6047: fullinstall has been removed because Python 3's executable will
302 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000303
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000304- Lib/smtpd.py is no longer installed as a script.
305
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000306Extension Modules
307-----------------
308
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000309- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000310
Martin v. Löwise23c8682009-05-29 16:01:34 +0000311- Issue #4873: Fix resource leaks in error cases of pwd and grp.
312
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000313- Issue #6093: Fix off-by-one error in locale.strxfrm.
314
Benjamin Peterson744af442009-05-23 18:51:49 +0000315- The _functools and _locale modules are now built into the libpython shared
316 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000317
Antoine Pitrou20327222009-05-24 20:39:11 +0000318Build
319-----
320
321- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
322 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
323 Clinton Roy.
324
Brett Cannon1262e7c2009-05-11 01:47:11 +0000325Tests
326-----
327
328- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
329 tests on darwin even when the OS was installed on a case-sensitive
330 filesystem. Also fixed tests that should not be run when
331 sys.dont_write_bytecode is true.
332
333
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000334What's New in Python 3.1 beta 1?
335================================
336
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000337*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000338
339Core and Builtins
340-----------------
341
Mark Dickinson865e01a2009-05-07 16:37:01 +0000342- Issue #5914: Add new C API function PyOS_string_to_double, and
343 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
344
Eric Smith741191f2009-05-06 13:08:15 +0000345- Issue #3382: float.__format__, complex.__format__, and %-formatting
346 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
347 affects nan -> NAN and inf -> INF.
348
Mark Hammond5a607a32009-05-06 08:04:54 +0000349- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
350 in all operations, including splitdrive, split, etc. splitunc() now issues
351 a PendingDeprecation warning.
352
Eric Smith63376222009-05-05 14:04:18 +0000353- Issue #5920: For float.__format__, change the behavior with the
354 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
355 to be like 'g' but with at least one decimal point and with a
356 default precision of 12. Previously, the behavior the same but with
357 a default precision of 6. This more closely matches str(), and
358 reduces surprises when adding alignment flags to the empty
359 presentation type. This also affects the new complex.__format__ in
360 the same way.
361
Martin v. Löwis011e8422009-05-05 04:43:17 +0000362- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
363
R. David Murrayb18500d2009-05-04 22:59:07 +0000364- Issue #5890: in subclasses of 'property' the __doc__ attribute was
365 shadowed by classtype's, even if it was None. property now
366 inserts the __doc__ into the subclass instance __dict__.
367
Antoine Pitrou244651a2009-05-04 18:56:13 +0000368- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
369 sequences. Patch by Nick Barnes and Victor Stinner.
370
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000371- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000372
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000373- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
374 received a new method, detach(). detach() disconnects the underlying stream
375 from the buffer or text IO and returns it.
376
Mark Dickinson33841c32009-05-01 15:37:04 +0000377- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
378 floats with absolute value over 1e50. Also remove length
379 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
380 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000381
Eric Smith741191f2009-05-06 13:08:15 +0000382- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000383 format(complex(1, 2./3), '.5') now produces a sensible result.
384
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000385- Issue #5864: Fix empty format code formatting for floats so that it
386 never gives more than the requested number of significant digits.
387
Eric Smith6dc46f52009-04-27 20:39:49 +0000388- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
389 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
390
Eric Smithcc32a112009-04-26 21:35:14 +0000391- Issue #5835: Deprecate PyOS_ascii_formatd.
392
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000393- Issue #4971: Fix titlecase for characters that are their own
394 titlecase, but not their own uppercase.
395
Benjamin Peterson193152c2009-04-25 01:08:45 +0000396- Issue #5283: Setting __class__ in __del__ caused a segfault.
397
Mark Dickinsonad476da2009-04-23 19:14:16 +0000398- Issue #5816: complex(repr(z)) now recovers z exactly, even when
399 z involves nans, infs or negative zeros.
400
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000401- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000402
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000403- Issue #1869 (and many duplicates): make round(x, n) correctly
404 rounded for a float x, by using the decimal <-> binary conversions
405 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
406 consistently agrees with format(x, '.2f').
407
Benjamin Petersonae937c02009-04-18 20:54:08 +0000408- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
409 some builtin types.
410
Eric Smith0923d1d2009-04-16 20:16:10 +0000411- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
412
Eric Smith35e84722009-04-16 20:21:28 +0000413- Issue #5515: str.format() type 'n' combined with commas and leading
414 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000415
416- Implement PEP 378, Format Specifier for Thousands Separator, for
417 floats.
418
Mark Dickinson3370cce2009-04-17 22:40:53 +0000419- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000420 1e11, not 1e12. This avoids printing 13 significant digits in
421 situations where only 12 of them are correct. Example problem
422 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
423 long time.)
424
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000425- Issue #1580: On most platforms, use a 'short' float repr: for a
426 finite float x, repr(x) now outputs a string based on the shortest
427 sequence of decimal digits that rounds to x. Previous behaviour was
428 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000429 Another minor difference is that the new repr switches to
430 exponential notation at 1e16 instead of the previous 1e17; this
431 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000432
433 There's a new sys attribute sys.float_repr_style, which takes
434 the value 'short' to indicate that we're using short float repr,
435 and 'legacy' if the short float repr isn't available for one
436 reason or another.
437
438 The float repr change involves incorporating David Gay's 'perfect
439 rounding' code into the Python core (it's in Python/dtoa.c). As a
440 secondary consequence, all string-to-float and float-to-string
441 conversions (including all float formatting operations) will be
442 correctly rounded on these platforms.
443
444 See issue 1580 discussions for details of platforms for which
445 this change does not apply.
446
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000447- Issue #5759: float() didn't call __float__ on str subclasses.
448
Georg Brandlabc38772009-04-12 15:51:51 +0000449- The string.maketrans() function is deprecated; there is a new static method
450 maketrans() on the bytes and bytearray classes. This removes confusion about
451 the types string.maketrans() is supposed to work with, and mirrors the
452 methods available on the str class.
453
R. David Murraydc6da8a2009-04-09 22:16:43 +0000454- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
455 its clarity and its speed.
456
Matthias Klose091c7b12009-04-07 13:24:27 +0000457- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
458 to avoid compiler warnings.
459
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000460- Issue #3739: The unicode-internal encoder now reports the number of characters
461 consumed like any other encoder (instead of the number of bytes).
462
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000463Installation
464------------
465
466- Issue #5756: Install idle and pydoc with a 3 suffix.
467
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000468Library
469-------
470
Martin v. Löwis403117a2009-05-24 19:19:17 +0000471- Issue #5311: bdist_msi can now build packages that do not depend on a
472 specific Python version.
473
Raymond Hettingereb816952009-05-29 01:22:18 +0000474- Issue #5150: IDLE's format menu now has an option to strip trailing
475 whitespace.
476
Vinay Sajipaffbd872009-06-11 10:11:47 +0000477- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000478 the right type checkings anymore.
479
Thomas Heller00cfc372009-05-05 19:04:40 +0000480- Issue #4875: On win32, ctypes.util.find_library does no longer
481 return directories.
482
Georg Brandl243ad662009-05-05 09:00:19 +0000483- Issue #5142: Add the ability to skip modules while stepping to pdb.
484
Georg Brandl991f9202009-05-05 08:31:54 +0000485- Issue #1309567: Fix linecache behavior of stripping subdirectories when
486 looking for files given by a relative filename.
487
Georg Brandleaa84ef2009-05-05 08:14:33 +0000488- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
489 turtle demos in Demo/turtle.
490
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000491- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
492 extracting a file to the root directory.
493
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000494- Issue #5913: os.listdir() should fail for empty path on windows.
495
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000496- Issue #5084: unpickling now interns the attribute names of pickled objects,
497 saving memory and avoiding growth in size of subsequent pickles. Proposal
498 and original patch by Jake McGuire.
499
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000500- The json module now works exclusively with str and not bytes.
501
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000502- Issue #3959: The ipaddr module has been added to the standard library.
503 Contributed by Google.
504
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000505- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
506 error when a named pipe is encountered, rather than blocking infinitely.
507
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000508- Issue #5857: tokenize.tokenize() now returns named tuples.
509
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000510- Issue #4305: ctypes should now build again on mipsel-linux-gnu
511
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000512- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
513 string is already in normalized form, by performing a quick check beforehand.
514 Original patch by Rauli Ruohonen.
515
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000516- Issue #5853: calling a function of the mimetypes module from several threads
517 at once could hit the recursion limit if the mimetypes database hadn't been
518 initialized before.
519
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000520- Issue #5854: Updated __all__ to include some missing names and remove some
521 names which should not be exported.
522
Thomas Heller34596a92009-04-24 20:50:00 +0000523- Issue #3102: All global symbols that the _ctypes extension defines
524 are now prefixed with 'Py' or '_ctypes'.
525
526- Issue #5041: ctypes does now allow pickling wide character.
527
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000528- Issue #5812: For the two-argument form of the Fraction constructor,
529 Fraction(m, n), m and n are permitted to be arbitrary Rational
530 instances.
531
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000532- Issue #5812: Fraction('1e6') is valid: more generally, any string
533 that's valid for float() is now valid for Fraction(), with the
534 exception of strings representing NaNs and infinities.
535
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000536- Issue #5734: BufferedRWPair was poorly tested and had several glaring
537 bugs. Patch by Brian Quinlan.
538
R. David Murray9e94ddf2009-04-13 17:06:33 +0000539- Issue #1161031: fix readwrite select flag handling: POLLPRI now
540 results in a handle_expt_event call, not handle_read_event, and POLLERR
541 and POLLNVAL now call handle_close, not handle_expt_event. Also,
542 dispatcher now has an 'ignore_log_types' attribute for suppressing
543 log messages, which is set to 'warning' by default.
544
Matthias Klosea3d29e82009-04-07 13:13:10 +0000545- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
546 new arguments introduced in 2.5.
547
Walter Dörwald1b08b302009-04-25 14:13:56 +0000548- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
549 makeunicodedata.py and regenerated the Unicode database (This fixes
550 u'\u1d79'.lower() == '\x00').
551
Matthias Klose535336f2009-04-07 13:49:45 +0000552Extension Modules
553-----------------
554
Benjamin Petersone04b6272009-05-04 22:25:21 +0000555- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
556 pwd.
557
Mark Dickinsonea835e72009-04-19 20:40:33 +0000558- Issue #5463: In struct module, remove deprecated float coercion
559 for integer type codes: struct.pack('L', 0.3) should now raise
560 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
561 The version number has been bumped to 0.3.
562
Matthias Klose535336f2009-04-07 13:49:45 +0000563- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
564 using Berkley-DB.
565
Nick Coghlan47384702009-04-22 16:13:36 +0000566Tests
567-----
568
569- Issue #5354: New test support function import_fresh_module() makes
570 it easy to import both normal and optimised versions of modules.
571 test_heapq and test_warnings have been adjusted to use it, tests for
572 other modules with both C and Python implementations in the stdlib
573 can be adjusted to use it over time.
574
Walter Dörwald4ba80132009-04-25 12:48:43 +0000575- Issue #5837: Certain sequences of calls to set() and unset() for
576 support.EnvironmentVarGuard objects restored the environment variables
577 incorrectly on __exit__.
578
Benjamin Petersonb173f782009-05-05 22:31:58 +0000579C-API
580-----
581
582- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
583
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000584
Benjamin Petersond1735892009-03-07 18:46:21 +0000585What's New in Python 3.1 alpha 2?
586=================================
587
Benjamin Peterson88f14352009-04-04 21:06:52 +0000588*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000589
590Core and Builtins
591-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000592
Eric Smith1e1d7d22009-04-03 22:25:33 +0000593- Implement PEP 378, Format Specifier for Thousands Separator, for
594 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000595
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000596- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
597
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000598- Issue #5499: The 'c' code for argument parsing functions now only accepts a
599 byte, and the 'C' code only accepts a unicode character.
600
Georg Brandl406b3d82009-04-11 21:24:37 +0000601- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
602 when hitting the recursion limit under certain circumstances.
603
Brett Cannon0759dd62009-04-01 18:13:07 +0000604- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
605
Georg Brandlab6f2f62009-03-31 04:16:10 +0000606- Fix a segfault when running test_exceptions with coverage, caused by
607 insufficient checks in accessors of Exception.__context__.
608
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000609- Issue #5604: non-ASCII characters in module name passed to
610 imp.find_module() were converted to UTF-8 while the path is
611 converted to the default filesystem encoding, causing nonsense.
612
Benjamin Peterson09832742009-03-26 17:15:46 +0000613- Issue #5126: str.isprintable() returned False for space characters.
614
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000615- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
616 the end sys.path, for compatibility with the system install of Python.
617
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000618- Issue #4688: Add a heuristic so that tuples and dicts containing only
619 untrackable objects are not tracked by the garbage collector. This can
620 reduce the size of collections and therefore the garbage collection overhead
621 on long-running programs, depending on their particular use of datatypes.
622
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000623- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
624 improve its performance. Long divisions and remainder operations
625 are now between 50% and 150% faster.
626
Mark Dickinsonbd792642009-03-18 20:06:12 +0000627- Issue #4258: Make it possible to use base 2**30 instead of base
628 2**15 for the internal representation of integers, for performance
629 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
630 --enable-big-digits option to configure, which overrides the
631 default. Add sys.int_info structseq to provide information about
632 the internal format.
633
Mark Dickinson081dfee2009-03-18 14:47:41 +0000634- Issue #4474: PyUnicode_FromWideChar now converts characters outside
635 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
636 and sizeof(Py_UNICODE) == 2.
637
Eric Smith8ec90442009-03-14 12:29:34 +0000638- Issue #5237: Allow auto-numbered fields in str.format(). For
639 example: '{} {}'.format(1, 2) == '1 2'.
640
Antoine Pitrou652e7072009-03-13 19:25:20 +0000641- Issue #5392: when a very low recursion limit was set, the interpreter would
642 abort with a fatal error after the recursion limit was hit twice.
643
Matthias Klose042f1332009-04-04 14:32:42 +0000644- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
645 short file names.
646
Benjamin Petersond1735892009-03-07 18:46:21 +0000647Library
648-------
649
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000650- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000651 mailbox.MH.get_message().
652
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000653- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
654 error substitutions from non-strict codec error callbacks in
655 incrementalencoder and StreamWriter.
656
Georg Brandl33c28812009-04-01 23:07:29 +0000657- Issue #5656: Fix the coverage reporting when running the test suite with
658 the -T argument.
659
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000660- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
661
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000662- Issue #5624: Fix the _winreg module name still used in several modules.
663
Benjamin Petersona1b49012009-03-31 23:11:32 +0000664- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
665
Jesse Nollera9314042009-03-31 22:36:44 +0000666- Issue #5619: Multiprocessing children disobey the debug flag and causes
667 popups on windows buildbots. Patch applied to work around this issue.
668
Jesse Noller32d68c22009-03-31 18:48:42 +0000669- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
670
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000671- Issue #5387: Fixed mmap.move crash by integer overflow.
672
Jesse Nollerf8d00852009-03-31 03:25:07 +0000673- Issue #5261: Patch multiprocessing's semaphore.c to support context
674 manager use: "with multiprocessing.Lock()" works now.
675
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000676- Issue #5236: Change time.strptime() to only take strings. Didn't work with
677 bytes already but the failure was non-obvious.
678
Jesse Noller7af4ef82009-03-30 16:47:15 +0000679- Issue #5177: Multiprocessing's SocketListener class now uses
680 socket.SO_REUSEADDR on all connections so that the user no longer needs
681 to wait 120 seconds for the socket to expire.
682
Benjamin Peterson48e24782009-03-29 13:02:52 +0000683- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
684
Antoine Pitrou66994e12009-03-29 00:45:26 +0000685- Issue #1174606: Calling read() without arguments of an unbounded file
686 (typically /dev/zero under Unix) could crash the interpreter.
687
Benjamin Peterson59406a92009-03-26 17:10:29 +0000688- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
689 io.BufferedRandom have been deprecated for removal in Python 3.2.
690
Lars Gustäbel42e00912009-03-22 20:34:29 +0000691- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
692 forever on incomplete input. That caused tarfile.open() to hang when used
693 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
694 partial bzip2 compressed data.
695
Mark Dickinson79f52032009-03-17 23:12:51 +0000696- Issue #2110: Add support for thousands separator and 'n' type
697 specifier to Decimal.__format__
698
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000699- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
700 '>' alignment characters.
701
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000702- The error detection code in FileIO.close() could fail to reflect the `errno`
703 value, and report it as -1 instead.
704
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000705- Issue #5016: FileIO.seekable() could return False if the file position
706 was negative when truncated to a C int. Patch by Victor Stinner.
707
Mark Dickinsonae681df2009-03-21 10:26:31 +0000708Extension Modules
709-----------------
710
Benjamin Petersone099b372009-04-04 17:09:35 +0000711- Issue #5391: mmap now deals exclusively with bytes.
712
Mark Dickinsonae681df2009-03-21 10:26:31 +0000713- Issue #5463: In struct module, remove deprecated overflow wrapping
714 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000715 struct.error instead of returning b'\xff\xff\xff\xff'. The
716 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
717 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000718
Benjamin Petersond1735892009-03-07 18:46:21 +0000719
Benjamin Petersona58a6262009-03-07 16:34:40 +0000720What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000721================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000722
Benjamin Petersona58a6262009-03-07 16:34:40 +0000723*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000724
725Core and Builtins
726-----------------
727
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000728- The io module has been reimplemented in C for speed.
729
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000730- Give dict views an informative __repr__.
731
Eric Smith5e5c0db2009-02-20 14:25:03 +0000732- Issue #5247: Improve error message when unknown format codes are
733 used when using str.format() with str, int, and float arguments.
734
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000735- Issue #5249: time.strftime returned malformed string when format string
736 contained non ascii character on windows.
737
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000738- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
739 source has already been decoded into str.
740
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000741- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
742 rotating the object pointer by 4 bits to the right.
743
Mark Dickinson87ec0852009-02-09 17:15:59 +0000744- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
745 it now forces its argument to double before testing for infinity.
746
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000747- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
748 returns a non-number type.
749
Benjamin Peterson87618552009-02-08 15:00:52 +0000750- Issue #5182: Removed memoryview.__str__.
751
Mark Dickinsonc008a172009-02-01 13:59:22 +0000752- Issue #1717: Removed builtin cmp() function, dropped tp_compare
753 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000754 the type definition cmpfunc. The tp_compare slot has been renamed
755 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000756
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000757- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000758 were suppressing all exceptions. These include list() and bytearray().
759
Mark Dickinson1124e712009-01-28 21:25:58 +0000760- Issue #4707: round(x, n) now returns an integer if x is an integer.
761 Previously it returned a float.
762
Antoine Pitroub52ec782009-01-25 16:34:23 +0000763- Issue #4753: By enabling a configure option named '--with-computed-gotos'
764 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
765 evaluation loop is compiled with a new dispatch mechanism which gives
766 speedups of up to 20%, depending on the system, on various benchmarks.
767
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000768- Issue #4874: Most builtin decoders now reject unicode input.
769
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000770- Issue #4842: Don't allow trailing 'L' when constructing an integer
771 from a string.
772
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000773- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
774
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000775- Issue #4838: When a module is deallocated, free the memory backing the
776 optional module state data.
777
Mark Dickinson8055afd2009-01-17 10:04:45 +0000778- Issue #4910: Rename nb_long slot to nb_reserved, and change its
779 type to (void *).
780
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000781- Issue #4935: The overflow checking code in the expandtabs() method common
782 to str, bytes and bytearray could be optimized away by the compiler, letting
783 the interpreter segfault instead of raising an error.
784
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000785- Issue #3720: Fix a crash when an iterator modifies its class and removes its
786 __next__ method.
787
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000788- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
789 function no longer attempt to call the __long__ slot to convert an object
790 to an integer. Only the __int__ and __trunc__ slots are examined.
791
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000792- Issue #4893: Use NT threading on CE.
793
Martin v. Löwisec59d042009-01-12 07:59:10 +0000794- Issue #4915: Port sysmodule to Windows CE.
795
Antoine Pitrouab868312009-01-10 15:40:25 +0000796- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
797 common cases are optimized thanks to a dedicated fast path and a moderate
798 amount of loop unrolling.
799
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000800- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
801 collecting the oldest generation) so that allocating lots of objects without
802 destroying them does not show quadratic performance. Based on a proposal by
803 Martin von Löwis at
804 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
805
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000806- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000807 having been closed (for instance, a read() call could return some
808 previously buffered data). Patch by Dmitry Vasiliev.
809
Antoine Pitrou05608432009-01-09 18:53:14 +0000810- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
811 flag to work properly. Furthermore, when specifying -u, the text stdout
812 and stderr streams have line-by-line buffering enabled (the default being
813 to buffer arbitrary chunks of data).
814
Raymond Hettinger35631532009-01-09 03:58:09 +0000815- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
816 instead of ints (reducing its size from 4 to 8 times thereby reducing
817 Python's overall memory).
818
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000819- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
820 an existing .py counterpart, override the co_filename attributes of all
821 code objects if the original filename is obsolete (which can happen if the
822 file has been renamed, moved, or if it is accessed through different paths).
823 Patch by Ziga Seilnacht and Jean-Paul Calderone.
824
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000825- Issue #4580: Fix slicing of memoryviews when the item size is greater than
826 one byte. Also fixes the meaning of len() so that it returns the number of
827 items, rather than the size in bytes.
828
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000829- Issue #4075: Use OutputDebugStringW in Py_FatalError.
830
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000831- Issue #4747: When the terminal does not use utf-8, executing a script with
832 non-ascii characters in its name could fail with a "SyntaxError: None" error.
833
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000834- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000835 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000836
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000837- Issue #3680: Reference cycles created through a dict, set or deque iterator
838 did not get collected.
839
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000840- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
841 where the tp_hash and tp_dict slots are both NULL.
842
Georg Brandlccc47b62008-12-28 11:44:14 +0000843- Issue #4759: None is now allowed as the first argument of
844 bytearray.translate(). It was always allowed for bytes.translate().
845
Skip Montanaro80072cb2008-12-23 03:51:14 +0000846- Added test case to ensure attempts to read from a file opened for writing
847 fail.
848
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000849- Issue #3106: Speedup some comparisons (str/str and int/int).
850
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000851- Issue #2183: Simplify and optimize bytecode for list, dict and set
852 comprehensions. Original patch for list comprehensions by Neal Norwitz.
853
Antoine Pitrou621601a2008-12-17 23:18:19 +0000854- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
855 print elapsed times, not only when some objects are uncollectable /
856 unreachable. Original patch by Neil Schemenauer.
857
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000858- Issue #3439: Add a bit_length method to int.
859
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000860- Issue #2173: When getting device encoding, check that return value of
861 nl_langinfo is not the empty string. This was causing silent build
862 failures on OS X.
863
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000864- Issue #4597: Fixed several opcodes that weren't always propagating
865 exceptions.
866
867- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000868 context manager returns a value that cannot be converted to a bool.
869
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000870- Issue #4445: Replace "sizeof(PyBytesObject)" with
871 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
872 bytes instances. On a typical machine this saves 3 bytes of memory
873 (on average) per allocation of a bytes instance.
874
Christian Heimesa872de52008-12-05 08:26:55 +0000875- Issue #4533: File read operation was dreadfully slow due to a slowly
876 growing read buffer. Fixed by using the same growth rate algorithm as
877 Python 2.x.
878
Antoine Pitrou5504e892008-12-06 21:27:53 +0000879- Issue #4509: Various issues surrounding resize of bytearray objects to
880 which there are buffer exports (e.g. memoryview instances).
881
Georg Brandlf9734072008-12-07 15:30:06 +0000882- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
883 method on file objects with closefd=False. The file descriptor is still
884 kept open but the file object behaves like a closed file. The ``FileIO``
885 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000886
Antoine Pitroubc420402008-12-07 20:14:49 +0000887- Issue #4569: Interpreter crash when mutating a memoryview with an item size
888 larger than 1.
889
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000890- Issue #4748: Lambda generators no longer return a value.
891
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000892- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
893
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000894- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
895 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
896 step. This avoids problems with counting UTF-8 bytes that ignores the effect
897 of using the replace error handler in PyUnicode_DecodeUTF8().
898
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000899Library
900-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000901
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000902- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
903 "PyInit" prefix, rather than "init".
Tarek Ziadé6504c662009-07-11 10:59:56 +0000904
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000905- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +0000906
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000907- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +0000908 attribute.
909
Tarek Ziadé05bf01a2009-07-04 02:04:21 +0000910- Issue #6413: Fixed the log level in distutils.dist for announce.
911
Tarek Ziadée10d6de2009-07-03 08:33:28 +0000912- Issue #6403: Fixed package path usage in build_ext.
913
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000914- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +0000915 extension in a subdirectory if the extension name had dots.
916
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000917- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +0000918 unixcompiler. Original patch by Sridhar Ratnakumar.
919
Tarek Ziadé25bd2062009-06-28 21:26:27 +0000920- Issue #6286: Now Distutils upload command is based on urllib2 instead of
921 httplib, allowing the usage of http_proxy.
922
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000923- Issue #6287: Added the license field in Distutils documentation.
924
Tarek Ziadéff543362009-06-11 09:25:41 +0000925- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
926
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000927- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
928 in Makefiles. This prevents compile errors when using syntax like:
929 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
930
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +0000931- Issue #6131: test_modulefinder leaked when run after test_distutils.
932 Patch by Hirokazu Yamamoto.
933
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000934- Issue #6048: Now Distutils uses the tarfile module in archive_util.
935
Vinay Sajipaffbd872009-06-11 10:11:47 +0000936- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +0000937 and tests on pywin32 by Tim Golden.
938
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000939- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
940
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000941- Issue #6046: Fixed the library extension when distutils build_ext is used
942 inplace. Initial patch by Roumen Petrov.
943
Vinay Sajipaffbd872009-06-11 10:11:47 +0000944- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000945 subcommand.
946
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000947- Issue #6022: a test file was created in the current working directory by
948 test_get_outputs in Distutils.
949
Tarek Ziadéff0e5002009-05-12 17:14:01 +0000950- Issue #5977: distutils build_ext.get_outputs was not taking into account the
951 inplace option. Initial patch by kxroberto.
952
Tarek Ziadé06fbee12009-05-10 10:34:01 +0000953- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
954 for old-style extensions.
955
Tarek Ziadébe5b1b92009-05-09 10:09:11 +0000956- Issue #5976: Fixed Distutils test_check_environ.
957
Tarek Ziadé5662d3e2009-05-07 21:24:43 +0000958- Issue #5941: Distutils build_clib command was not working anymore because
959 of an incomplete costumization of the archiver command. Added ARFLAGS in the
960 Makefile besides AR and make Distutils use it. Original patch by David
961 Cournapeau.
962
R. David Murrayb507d2e2009-04-29 15:34:32 +0000963- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
964
Vinay Sajipaffbd872009-06-11 10:11:47 +0000965- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +0000966 anymore.
967
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000968- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000969 sysconfig.get_config_vars.
970
Tarek Ziadé23336082009-04-25 12:39:56 +0000971- Issue #4951: Fixed failure in test_httpservers.
972
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000973- Issue #5795: Fixed test_distutils failure on Debian ppc.
974
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000975- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
976
Georg Brandl1f9fa312009-04-27 16:42:58 +0000977- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
978 a value in SafeConfigParser.
979
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000980- Issue #5732: added a new command in Distutils: check.
981
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000982- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000983 platforms. Initial patch by Paul Moore.
984
Tarek Ziadéf6370502009-04-05 22:57:21 +0000985- Issue #5095: Added bdist_msi to the list of bdist supported formats.
986 Initial fix by Steven Bethard.
987
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000988- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
989 Initial fix by Wayne Davison.
990
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000991- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000992
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000993- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000994
Brett Cannonf47e84c2009-04-01 16:06:01 +0000995- Issue #1665206 (partially): Move imports in cgitb to the top of the module
996 instead of performing them in functions. Helps prevent import deadlocking in
997 threads.
998
R. David Murraye59482e2009-04-01 03:42:00 +0000999- Issue #2522: locale.format now checks its first argument to ensure it has
1000 been passed only one pattern, avoiding mysterious errors where it appeared
1001 that it was failing to do localization.
1002
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001003- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1004 Brandl.
1005
Antoine Pitrou350370c2009-03-14 00:13:13 +00001006- Issue #1222: locale.format() bug when the thousands separator is a space
1007 character.
1008
Tarek Ziadé516db942009-03-11 12:52:00 +00001009- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1010 Tim Golden.
1011
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001012- collections.deque() objects now have a read-only attribute called maxlen.
1013
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001014- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1015 it is has been populated and properly configured in order to prevent
1016 window flashing.
1017
Guilherme Polo56f5be52009-03-07 01:54:57 +00001018- Issue #4792: Prevent a segfault in _tkinter by using the
1019 guaranteed to be safe interp argument given to the PythonCmd in place of
1020 the Tcl interpreter taken from a PythonCmd_ClientData.
1021
1022- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1023
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001024- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1025 Original patch by Akira Kitada.
1026
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001027- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1028
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001029- Issue #5385: Fixed mmap crash after resize failure on windows.
1030
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001031- Issue #5179: Fixed subprocess handle leak on failure on windows.
1032
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001033- PEP 372: Added collections.OrderedDict().
1034
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001035- The _asdict() for method for namedtuples now returns an OrderedDict().
1036
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001037- configparser now defaults to using an ordered dictionary.
1038
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001039- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1040 import guess_extension`` was used.
1041
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001042- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1043 with same tagname but larger size than first map. (Windows)
1044
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001045- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1046 overrun.
1047
Tarek Ziadéf0721222009-02-28 10:16:43 +00001048- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1049 bdist_rpm command.
1050
1051- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1052
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001053- Issue #5052: make Distutils compatible with 2.3 again.
1054
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001055- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1056 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001057
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001058- Issue #5287: Add exception handling around findCaller() call to help out
1059 IronPython.
1060
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001061- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1062 The file was resized to wrong size.
1063
1064- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1065
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001066- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001067 from the package_data and the data_files metadata.
1068
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001069- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001070 support.TempdirManager, to avoid writing in the tests directory.
1071
Tarek Ziadé68c50952009-02-13 23:04:17 +00001072- Issue #4524: distutils build_script command failed with --with-suffix=3.
1073 Initial patch by Amaury Forgeot d'Arc.
1074
Tarek Ziadé811d6242009-02-13 22:26:15 +00001075- Issue #2461: added tests for distutils.util
1076
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001077- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1078 which inherited from numbers.py which did not have __slots__ defined. The
1079 numbers hierarchy now has its own __slots__ declarations.
1080
Antoine Pitroub353c122009-02-11 00:39:14 +00001081- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1082 encoding.
1083
Thomas Heller465c8022009-02-10 18:59:04 +00001084- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1085 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1086
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001087- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1088 under NT and OS2. Patch by Philip Jenvey.
1089
Brett Cannonbefb14f2009-02-10 02:10:16 +00001090- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1091 to be recreated. This avoids a timing hole thanks to the old reliance on the
1092 ctime of the files involved.
1093
Guilherme Polob681df42009-02-09 22:33:59 +00001094- Issue #5122: Synchronize tk load failure check to prevent a potential
1095 deadlock.
1096
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001097- Issue #1818: collections.namedtuple() now supports a keyword argument
1098 'rename' which lets invalid fieldnames be automatically converted to
1099 positional names in the form, _1, _2, ...
1100
Guilherme Poloae098992009-02-09 16:44:24 +00001101- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1102
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001103- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1104 public documented method ``ZipImporter.get_filename()``.
1105
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001106- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1107 the execution of packages by looking for and executing a ``__main__``
1108 submodule when a package name is supplied. Initial patch by Andi
1109 Vajda.
1110
Guilherme Polo491aee22009-02-06 23:16:11 +00001111- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1112 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1113 Tkapp_Call when calling from a thread different than the one that created
1114 the Tcl interpreter. Patch by Robert Hancock.
1115
Eric Smith0e5b5622009-02-06 01:32:42 +00001116- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1117 Ross Light.
1118
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001119- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001120 environment/Makefile. Patch by Douglas Greiman.
1121
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001122- Issue #1276768: The verbose option was not used in the code of
1123 distutils.file_util and distutils.dir_util.
1124
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001125- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001126 --enabled-shared activated. Initial patch by Dave Peterson.
1127
Guilherme Polo7f423952009-02-02 21:17:09 +00001128- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1129
Raymond Hettinger85602262009-02-03 04:19:10 +00001130- The shelve module now defaults to pickle protocol 3.
1131
Brett Cannone61426e2009-01-30 01:31:34 +00001132- Fix a bug in the trace module where a bytes object from co_lnotab had its
1133 items being passed through ord().
1134
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001135- Issue #2047: shutil.move() could believe that its destination path was
1136 inside its source path if it began with the same letters (e.g. "src" vs.
1137 "src.new").
1138
Guilherme Polo5f238482009-01-28 14:41:10 +00001139- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1140
Raymond Hettinger89e12962009-01-26 02:09:03 +00001141- Removed isSequenceType(), isMappingType, and isNumberType() from the
1142 operator module; use the abstract base classes instead. Also removed
1143 the repeat() function; use mul() instead.
1144
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001145- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001146 collections.namedtuple() relied on __name__ being defined.
1147
1148- Backport importlib from Python 3.1. Only the import_module() function has
1149 been backported to help facilitate transitions from 2.7 to 3.1.
1150
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001151- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1152 the tar file was overriden by the gztar one.
1153
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001154- Issue #4863: distutils.mwerkscompiler has been removed.
1155
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001156- Added a new itertools functions: combinations_with_replacement()
1157 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001158
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001159- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001160 allowed non-integer arguments.
1161
Jesse Noller41faa542009-01-25 03:45:53 +00001162- Fix and properly document the multiprocessing module's logging
1163 support, expose the internal levels and provide proper usage
1164 examples.
1165
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001166- Issue #1672332: fix unpickling of subnormal floats, which was
1167 producing a ValueError on some platforms.
1168
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001169- Issue #3881: Help Tcl to load even when started through the
1170 unreadable local symlink to "Program Files" on Vista.
1171
Martin v. Löwis59e47792009-01-24 14:10:07 +00001172- Issue #4710: Extract directories properly in the zipfile module;
1173 allow adding directories to a zipfile.
1174
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001175- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001176 --without-threads argument. When this occurs, _multiprocessing will
1177 be disabled, and not compiled.
1178
Antoine Pitrou08838b62009-01-21 00:55:13 +00001179- Issue #5008: When a file is opened in append mode with the new IO library,
1180 do an explicit seek to the end of file (so that e.g. tell() returns the
1181 file size rather than 0). This is consistent with the behaviour of the
1182 traditional 2.x file object.
1183
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001184- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1185 parameter was set.
1186
Mark Dickinson8dd05142009-01-20 20:43:58 +00001187- Issue #4842: Always append a trailing 'L' when pickling longs using
1188 pickle protocol 0. When reading, the 'L' is optional.
1189
Brett Cannonafccd632009-01-20 02:21:27 +00001190- Add the importlib package.
1191
Jesse Noller9a0fc972009-01-18 21:12:58 +00001192- Issue #4301: Patch the logging module to add processName support, remove
1193 _check_logger_class from multiprocessing.
1194
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001195- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001196 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001197
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001198- Issue #4959: inspect.formatargspec now works for keyword only arguments
1199 without defaults.
1200
Jesse Noller6214edd2009-01-19 16:23:53 +00001201- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1202 for *nix machines for negative handles and large int handles. Without this check
1203 it is possible to segfault the interpreter.
1204
Jesse Nollerb0516a62009-01-18 03:11:38 +00001205- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1206 in sharedctypes.py.
1207
1208- Issue #1225107: inspect.isclass() returned True for instances with a custom
1209 __getattr__.
1210
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001211- Issue #3826 and #4791: The socket module now closes the underlying socket
1212 appropriately when it is being used via socket.makefile() objects
1213 rather than delaying the close by waiting for garbage collection to do it.
1214
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001215- Issue #1696199: Add collections.Counter() for rapid and convenient
1216 counting.
1217
Antoine Pitrou308705e2009-01-10 16:22:51 +00001218- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1219
Thomas Heller5e4e4272009-01-08 09:34:20 +00001220- Issue #4867: Fixed a crash in ctypes when passing a string to a
1221 function without defining argtypes.
1222
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001223- Issue #4272: Add an optional argument to the GzipFile constructor to override
1224 the timestamp in the gzip stream. The default value remains the current time.
1225 The information can be used by e.g. gunzip when decompressing. Patch by
1226 Jacques Frechet.
1227
Mark Dickinson315a20a2009-01-04 21:34:18 +00001228- Restore Python 2.3 compatibility for decimal.py.
1229
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001230- Issue #3638: Remove functions from _tkinter module level that depend on
1231 TkappObject to work with multiple threads.
1232
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001233- Issue #4718: Adapt the wsgiref package so that it actually works with
1234 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001235 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1236
Raymond Hettinger771ed762009-01-03 19:20:32 +00001237- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1238 to the decimal module.
1239
Georg Brandl3a9b0622009-01-03 22:07:57 +00001240- Fractions.from_float() no longer loses precision for integers too big to
1241 cast as floats.
1242
Mark Dickinsonf9236412009-01-02 23:23:21 +00001243- Issue #4812: add missing underscore prefix to some internal-use-only
1244 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1245
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001246- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001247 did unnecessary work in the common case where no key function was specified.
1248
Georg Brandlb1441c72009-01-03 22:33:39 +00001249- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1250 the function is not a generator.
1251
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001252- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1253 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001254
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001255- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001256 function. Original patch by Thomas Heller.
1257
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001258- Issue #3767: Convert Tk object to string in tkColorChooser.
1259
Martin v. Löwise354d782008-12-29 16:03:04 +00001260- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1261
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001262- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1263 the code under test can be written inline if more practical.
1264
Georg Brandldb7b6b92009-01-01 15:53:14 +00001265- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1266 works as expected in the interactive environment.
1267
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001268- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1269 Gabriel Genellina.
1270
Antoine Pitrou180a3362008-12-14 16:36:46 +00001271- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1272 boundary.
1273
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001274- Issue #4223: inspect.getsource() will now correctly display source code
1275 for packages loaded via zipimport (or any other conformant PEP 302
1276 loader). Original patch by Alexander Belopolsky.
1277
1278- Issue #4201: pdb can now access and display source code loaded via
1279 zipimport (or any other conformant PEP 302 loader). Original patch by
1280 Alexander Belopolsky.
1281
1282- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1283 302 conformant loader) will now work correctly in most cases (they
1284 are still subject to the constraints that exist for all code running
1285 from inside a module loaded via a PEP 302 loader and attempting to
1286 perform IO operations based on __file__). Original patch by
1287 Alexander Belopolsky.
1288
1289- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1290 allows backporting to maintenance branches. Original patch by
1291 Alexander Belopolsky.
1292
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001293- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1294 a non-ASCII letter.
1295
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001296- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1297
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001298- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1299 codec cannot be found. This is for compatibility with the builtin behavior.
1300
Facundo Batista708d5812008-12-11 04:20:07 +00001301- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1302 give correct results in the case where one argument is a quiet NaN
1303 and the other is a finite number that requires rounding.
1304
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001305- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1306 libs.
1307
Georg Brandlf9734072008-12-07 15:30:06 +00001308- Added the subprocess.check_call_output() convenience function to get output
1309 from a subprocess on success or raise an exception on error.
1310
1311- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1312 support unusual filenames (such as those containing semi-colons) in
1313 Content-Disposition headers.
1314
1315- Issue #4384: Added logging integration with warnings module using
1316 captureWarnings(). This change includes a NullHandler which does nothing;
1317 it will be of use to library developers who want to avoid the "No handlers
1318 could be found for logger XXX" message which can appear if the library user
1319 doesn't configure logging.
1320
1321- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1322 exception.
1323
Georg Brandleee31162008-12-07 15:15:22 +00001324- Issue #4529: fix the parser module's validation of try-except-finally
1325 statements.
1326
1327- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1328 not a malformed option.
1329
1330- Added the subprocess.check_output() convenience function to get output
1331 from a subprocess on success or raise an exception on error.
1332
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001333- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1334 the corresponding tests now pass.
1335
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001336- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1337 it was calling the wrong open() function.
1338
Fred Drake9a0a65b2008-12-04 19:24:50 +00001339- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1340 support unusual filenames (such as those containing semi-colons) in
1341 Content-Disposition headers.
1342
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001343- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1344 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1345
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001346- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1347 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1348 and getservbyport().
1349
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001350- Windows locale mapping updated to Vista.
1351
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001352Tools/Demos
1353-----------
1354
Antoine Pitrou8a681222009-02-07 17:13:31 +00001355- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1356 and make it 2.6-compatible.
1357
Guilherme Poloa7d27972009-01-28 16:06:51 +00001358- Ttk demos added in Demo/tkinter/ttk/
1359
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001360- Issue #4677: add two list comprehension tests to pybench.
1361
Georg Brandlb1441c72009-01-03 22:33:39 +00001362
1363Build
1364-----
1365
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001366- Issue #6094: Build correctly with Subversion 1.7.
1367
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001368- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1369
Antoine Pitrou8966c992009-05-01 21:18:27 +00001370- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1371 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1372
Matthias Klose55708cc2009-04-30 08:06:49 +00001373- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001374 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001375
Matthias Klose906785c2009-02-22 23:18:38 +00001376- Link the shared python library with $(MODLIBS).
1377
Martin v. Löwis11f72102009-02-10 13:13:30 +00001378- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1379
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001380- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1381
Martin v. Löwise97637d2009-01-11 09:45:11 +00001382- Issue #4895: Use _strdup on Windows CE.
1383
Georg Brandlb1441c72009-01-03 22:33:39 +00001384- Issue #4472: "configure --enable-shared" now works on OSX
1385
1386- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1387
1388- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1389
1390- Issue #4289: Remove Cancel button from AdvancedDlg.
1391
1392- Issue #1656675: Register a drop handler for .py* files on Windows.
1393
1394- Issue #4120: Exclude manifest from extension modules in VS2008.
1395
1396- Issue #4091: Install pythonxy.dll in system32 again.
1397
1398- Issue #4018: Disable "for me" installations on Vista.
1399
1400- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1401
1402- Issue #4204: Fixed module build errors on FreeBSD 4.
1403
1404
1405C-API
1406-----
1407
Mark Dickinson21776072009-02-10 16:13:25 +00001408- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1409 for negative arguments. Previously, it raised TypeError.
1410
Georg Brandlb1441c72009-01-03 22:33:39 +00001411- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1412
1413- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1414 the GIL is released, or owned by another thread.
1415
1416- Issue #4122: On Windows, fix a compilation error when using the
1417 Py_UNICODE_ISSPACE macro in an extension module.
1418
1419
Mark Dickinsone675f082008-12-11 21:56:00 +00001420Extension Modules
1421-----------------
1422
Gregory P. Smith365a1862009-02-12 07:35:29 +00001423- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1424 supporting objects as input no matter how it was compiled (built in
1425 implementations or external openssl library).
1426
Mark Dickinson29500f62009-01-15 15:36:10 +00001427- Issue #4397: Fix occasional test_socket failure on OS X.
1428
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001429- Issue #4279: Fix build of parsermodule under Cygwin.
1430
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001431- Issue #4751: hashlib now releases the GIL when hashing large buffers
1432 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1433 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1434
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001435- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1436
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001437- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1438 or decompress several streams at once on multi-CPU systems. Also, the GIL
1439 is now released when computing the CRC of a large buffer. Patch by ebfe.
1440
Georg Brandlb1441c72009-01-03 22:33:39 +00001441- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1442
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001443- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1444
Mark Dickinsone675f082008-12-11 21:56:00 +00001445- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1446 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001447
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001448- Issue #4583: array.array would not always prohibit resizing when a buffer
1449 has been exported, resulting in an interpreter crash when accessing the
1450 buffer.
1451
Martin v. Löwis841edad2008-11-30 10:36:49 +00001452
Jack Diederiche0cbd692009-04-01 04:27:09 +00001453- Issue #5228: Make functools.partial objects can now be pickled.
1454
Guilherme Polo9de29af2009-01-28 20:40:48 +00001455Tests
1456-----
1457
Antoine Pitrou88909542009-06-29 13:54:42 +00001458- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1459 regression tests in parallel, shortening the total runtime.
1460
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001461- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1462 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1463 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1464 skip the tests if DISPLAY is defined but can't be used.
1465
R. David Murraya21e4ca2009-03-31 23:16:50 +00001466- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001467 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001468 from test support, which does the conversion.
1469
Guilherme Polo9de29af2009-01-28 20:40:48 +00001470- Issue #5083: New 'gui' resource for regrtest.
1471
1472
Brett Cannon7317c1e2008-11-25 19:19:17 +00001473Docs
1474----
1475
Georg Brandl52b92cc2008-05-25 09:43:03 +00001476
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001477**(For information about older versions, consult the HISTORY file.)**