blob: 099f73a116790ae825c7ada02619ed0ded4b0dfe [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
Benjamin Peterson54cda442009-08-13 15:47:36 +000010*Release date: 2009-08-13*
Benjamin Petersone8fb2032009-06-27 22:03:18 +000011
12Core and Builtins
13-----------------
14
Benjamin Peterson044446b2009-08-15 13:25:28 +000015- Issue #6707: dir() on an uninitialized module caused a crash.
16
Georg Brandl069bcc32009-07-22 12:06:11 +000017- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
18
Raymond Hettinger63853bb2009-07-27 20:29:18 +000019- Issue #6573: set.union() stopped processing inputs if an instance of self
20 occurred in the argument chain.
21
R. David Murray10fc3952009-07-19 02:25:02 +000022- Issue #6070: On posix platforms import no longer copies the execute bit
23 from the .py file to the .pyc file if it is set.
24
Amaury Forgeot d'Arc79fa5ab2009-07-07 00:45:43 +000025- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
26 object, and not an int. Fix the corresponding error message, and the
27 documentation.
28
Mark Dickinson8c1e2942009-06-30 15:46:37 +000029- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
30 This fixes a build failure on HP-UX: int32_t and uint32_t are
31 defined in inttypes.h instead of stdint.h on that platform.
32
Amaury Forgeot d'Arc41a28732009-07-01 00:50:34 +000033- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arce5344d62009-06-29 22:38:54 +000034 the 'surrogateescape' error handler, a string which contains unpaired
35 surrogates.
36
Benjamin Petersone39d5d52009-07-02 22:02:15 +000037C-API
38-----
39
Georg Brandl878c3b02009-08-13 08:36:43 +000040- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
41 NUL: Bogus TypeError detail string.
42
Antoine Pitrou992d3d12009-08-06 21:01:42 +000043- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Petersonb166ffd2009-07-03 13:33:17 +000044
Benjamin Petersone39d5d52009-07-02 22:02:15 +000045- The code flags for old __future__ features are now available again.
46
Benjamin Petersone8fb2032009-06-27 22:03:18 +000047Library
48-------
49
Georg Brandle6700e92009-08-13 08:39:33 +000050- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
51 DO/DONT correctly.
52
Georg Brandl8a038b22009-08-13 07:52:08 +000053- Issue #6126: Fixed pdb command-line usage.
54
Antoine Pitrou0473e562009-08-06 20:52:43 +000055- Issue #6629: Fix a data corruption issue in the new I/O library, which could
56 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
57 "wb+" mode) after having buffered a certain amount of data for reading. This
58 bug was not present in the pure Python implementation.
59
Mark Dickinson825b9932009-08-06 16:08:07 +000060- Issue #6622: Fix "local variable 'secret' referenced before
61 assignment" bug in POP3.apop.
62
Raymond Hettinger99a13ee2009-08-04 19:13:37 +000063- Issue #6637: defaultdict.copy() did not work when the default factory
64 was left unspecified. Also, the eval/repr round-trip would fail when
65 the default_factory was None.
66
Mark Dickinson34776ca2009-08-02 20:09:59 +000067- Issue #2715: Remove remnants of Carbon.File from binhex module.
68
Mark Dickinson8d238292009-08-02 10:16:33 +000069- Issue #6595: The Decimal constructor now allows arbitrary Unicode
Georg Brandle6700e92009-08-13 08:39:33 +000070decimal digits in input, as recommended by the standard. Previously
71it was restricted to accepting [0-9].
Mark Dickinson8d238292009-08-02 10:16:33 +000072
R. David Murraya44c6b32009-07-29 15:40:30 +000073- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
Georg Brandle6700e92009-08-13 08:39:33 +000074unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
75descriptor errors
R. David Murraya44c6b32009-07-29 15:40:30 +000076
Senthil Kumaran0ac1f832009-07-26 12:39:47 +000077- Issue #1424152: Fix for http.client, urllib.request to support SSL while
Georg Brandle6700e92009-08-13 08:39:33 +000078working through proxy. Original patch by Christopher Li, changes made by
79Senthil Kumaran
Senthil Kumaran0ac1f832009-07-26 12:39:47 +000080
Brett Cannon2e3155e2009-07-20 03:22:43 +000081- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
Georg Brandle6700e92009-08-13 08:39:33 +000082the documentation said it did even though the code in PyLoader relied on the
83abstract method required by ResourceLoader.
Brett Cannon2e3155e2009-07-20 03:22:43 +000084
Mark Dickinson8d156432009-07-18 14:43:10 +000085- Issue #6431: Make Fraction type return NotImplemented when it doesn't
Georg Brandle6700e92009-08-13 08:39:33 +000086know how to handle a comparison without loss of precision. Also add
87correct handling of infinities and nans for comparisons with float.
Mark Dickinson8d156432009-07-18 14:43:10 +000088
Antoine Pitrou992d3d12009-08-06 21:01:42 +000089- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto680ac292009-07-17 07:02:18 +000090
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +000091- Issue #6358: The exit status of a command started with os.popen() was
Georg Brandle6700e92009-08-13 08:39:33 +000092reported differently than it did with python 2.x.
Amaury Forgeot d'Arc041b3ba2009-07-11 09:37:09 +000093
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +000094- Issue #6323: The pdb debugger did not exit when running a script with a
Georg Brandle6700e92009-08-13 08:39:33 +000095syntax error.
Amaury Forgeot d'Arcd31d4f22009-07-09 23:20:02 +000096
Georg Brandlae83d6e2009-08-13 09:04:31 +000097- Issue #3392: The subprocess communicate() method no longer fails in select()
98 when file descriptors are large; communicate() now uses poll() when possible.
99
Antoine Pitrou53f4ed72009-07-01 15:03:38 +0000100- Issue #6369: Fix an RLE decompression bug in the binhex module.
101
Hirokazu Yamamoto4e82f2d2009-06-29 15:02:36 +0000102- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
103
Georg Brandlae83d6e2009-08-13 09:04:31 +0000104- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
105 sys.path.
106
107Extension Modules
108-----------------
109
Brett Cannon0c811072009-08-13 19:59:04 +0000110- Fix a segfault in expat.
111
Georg Brandlae83d6e2009-08-13 09:04:31 +0000112- Issue #4509: array.array objects are no longer modified after an operation
113 failing due to the resize restriction in-place when the object has exported
114 buffers.
115
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000116Build
117-----
118
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000119- Issue 4601: 'make install' did not set the appropriate permissions on
Georg Brandle6700e92009-08-13 08:39:33 +0000120directories.
Amaury Forgeot d'Arc7e077242009-07-02 23:57:11 +0000121
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000122- Issue 5390: Add uninstall icon independent of whether file
Georg Brandle6700e92009-08-13 08:39:33 +0000123extensions are installed.
Martin v. Löwis9d49c1d2009-06-28 09:40:34 +0000124
Tarek Ziadéb08c3a82009-08-21 14:25:49 +0000125Documentation
126-------------
127
128- Issue #6556: Fixed the Distutils configuration files location explanation
129 for Windows.
130
Brett Cannon10e35b32009-07-20 00:19:49 +0000131Test
132----
133
134- Fix a test in importlib.test.source.test_abc_loader that was incorrectly
Georg Brandle6700e92009-08-13 08:39:33 +0000135testing when a .pyc file lacked an code object bytecode.
Brett Cannon10e35b32009-07-20 00:19:49 +0000136
Benjamin Petersone8fb2032009-06-27 22:03:18 +0000137
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000138What's New in Python 3.1?
139=========================
140
141*Release date: 27-June-2009*
142
143Core and Builtins
144-----------------
145
Mark Dickinsonad195562009-06-24 19:01:32 +0000146- Issue #6334: Fix bug in range length calculation for ranges with
Georg Brandle6700e92009-08-13 08:39:33 +0000147large arguments.
Mark Dickinsonad195562009-06-24 19:01:32 +0000148
Raymond Hettinger159eac92009-06-23 20:38:54 +0000149- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
Georg Brandle6700e92009-08-13 08:39:33 +0000150because it wasn't recognized as a sequence).
Raymond Hettinger159eac92009-06-23 20:38:54 +0000151
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000152Library
153-------
154
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000155- Issue #6314: logging.basicConfig() performs extra checks on the "level"
Georg Brandle6700e92009-08-13 08:39:33 +0000156argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000157
Facundo Batista10706e22009-06-19 20:34:30 +0000158- Issue #6274: Fixed possible file descriptors leak in subprocess.py
159
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000160- Accessing io.StringIO.buffer now raises an AttributeError instead of
Georg Brandle6700e92009-08-13 08:39:33 +0000161io.UnsupportedOperation.
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000162
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000163- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Georg Brandle6700e92009-08-13 08:39:33 +0000164(On Unix)
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000165
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000166- Issue #1202: zipfile module would cause a struct.error when attempting to
Georg Brandle6700e92009-08-13 08:39:33 +0000167store files with a CRC32 > 2**31-1.
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000168
Matthias Kloseab2b7552009-06-22 13:05:52 +0000169Extension Modules
170-----------------
171
172- Issue #5590: Remove unused global variable in pyexpat extension.
173
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000174
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000175What's New in Python 3.1 Release Candidate 2?
176=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000177
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000178*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000179
180Core and Builtins
181-----------------
182
Raymond Hettinger94f55832009-06-12 18:40:16 +0000183- Fixed SystemError triggered by "range([], 1, -1)".
184
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000185- Issue #5924: On Windows, a large PYTHONPATH environment variable
Georg Brandle6700e92009-08-13 08:39:33 +0000186(more than 255 characters) would be completely ignored.
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000187
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000188- Issue #4547: When debugging a very large function, it was not always
Georg Brandle6700e92009-08-13 08:39:33 +0000189possible to update the lineno attribute of the current frame.
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000190
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000191- Issue #5330: C functions called with keyword arguments were not reported by
Georg Brandlb75111c2009-08-13 12:27:52 +0000192 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000193
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000194Library
195-------
196
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000197- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Georg Brandle6700e92009-08-13 08:39:33 +0000198expression string pattern was trying to match against a bytes returned by
199Popen. Tested under win32 to build the py-postgresql project.
Tarek Ziadé41fe2822009-07-12 08:39:08 +0000200
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000201- Issue #6258: Support AMD64 in bdist_msi.
202
R. David Murray58641de2009-06-12 15:33:19 +0000203- Issue #6195: fixed doctest to no longer try to read 'source' data from
Georg Brandle6700e92009-08-13 08:39:33 +0000204binary files.
R. David Murray58641de2009-06-12 15:33:19 +0000205
Vinay Sajipaffbd872009-06-11 10:11:47 +0000206- Issue #5262: Fixed bug in next rollover time computation in
Georg Brandle6700e92009-08-13 08:39:33 +0000207TimedRotatingFileHandler.
Vinay Sajipaffbd872009-06-11 10:11:47 +0000208
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000209- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
Georg Brandle6700e92009-08-13 08:39:33 +0000210errors property. Additionally, the errors and encoding properties of StringIO
211are always None now.
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000212
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000213- Issue #6137: The pickle module now translates module names when loading
Georg Brandle6700e92009-08-13 08:39:33 +0000214or dumping pickles with a 2.x-compatible protocol, in order to make data
215sharing and migration easier. This behaviour can be disabled using the
216new `fix_imports` optional argument.
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000217
Raymond Hettinger40925d22009-06-04 18:32:39 +0000218- Removed the ipaddr module.
219
Georg Brandlb54d8012009-06-04 09:11:51 +0000220- Issue #3613: base64.{encode,decode}string are now called
Georg Brandle6700e92009-08-13 08:39:33 +0000221base64.{encode,decode}bytes which reflects what type they accept and return.
222The old names are still there as deprecated aliases.
Georg Brandlb54d8012009-06-04 09:11:51 +0000223
Georg Brandl317185a2009-06-04 09:00:56 +0000224- Issue #5767: Remove sgmlop support from xmlrpc.client.
225
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000226- Issue #6150: Fix test_unicode on wide-unicode builds.
227
Antoine Pitrouc06de472009-05-30 21:04:26 +0000228- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
Georg Brandle6700e92009-08-13 08:39:33 +0000229parameters.
Antoine Pitrouc06de472009-05-30 21:04:26 +0000230
Martin v. Löwis79b13872009-06-01 04:13:14 +0000231Windows
232-------
233
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000234- Issue #6221: Delete test registry key before running the test.
235
Martin v. Löwis79b13872009-06-01 04:13:14 +0000236- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
237
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000238C-API
239-----
240
241- Issue #5735: Python compiled with --with-pydebug should throw an
242 ImportError when trying to import modules compiled without
243 --with-pydebug, and vice-versa.
244
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000245
Brett Cannonc6d936e2009-06-07 20:09:53 +0000246Build
247-----
248
249- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
250 added LIBS to OS X framework builds.
251
Ronald Oussoren99aab652009-06-08 21:22:57 +0000252- Issue #5809: Specifying both --enable-framework and --enable-shared is
253 an error. Configure now explicity tells you about this.
254
255
Brett Cannonc6d936e2009-06-07 20:09:53 +0000256
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000257What's New in Python 3.1 release candidate 1?
258=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000259
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000260*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000261
262Core and Builtins
263-----------------
264
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000265- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
266 of the command line.
267
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000268- Issue #6012: Add cleanup support to O& argument parsing.
269
Eric Smith41669ca2009-05-23 14:23:22 +0000270- Issue #6089: Fixed str.format with certain invalid field specifiers
271 that would raise SystemError.
272
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000273- Issue #5982: staticmethod and classmethod now expose the wrapped
274 function with __func__.
275
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000276- Added support for multiple context managers in the same with-statement.
277 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000278
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000279- Issue #5829: complex("1e500") no longer raises OverflowError. This
280 makes it consistent with float("1e500") and interpretation of real
281 and imaginary literals.
282
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000283- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
284
R. David Murraydd226ea2009-05-13 12:27:21 +0000285- Issue #5994: the marshal module now has docstrings.
286
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000287- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
288 (1) inf and nan strings with trailing whitespace were incorrectly
289 rejected; (2) parsing of strings representing infinities and nans
290 was locale aware; and (3) the interpretation of fromhex('-nan')
291 didn't match that of float('-nan').
292
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000293Library
294-------
295
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000296- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
297
R. David Murrayfb123912009-05-28 18:19:00 +0000298- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
299
R. David Murray1f1b9d32009-05-27 20:56:59 +0000300- Issue #6121: pydoc now ignores leading and trailing spaces in the
301 argument to the 'help' function.
302
Georg Brandlfaf41492009-05-26 18:31:11 +0000303- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
304 arguments for strings with a space in them.
305
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000306- collections.namedtuple() was not working with the following field
307 names: cls, self, tuple, itemgetter, and property.
308
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000309- In unittest, using a skipping decorator on a class is now equivalent to
310 skipping every test on the class. The ClassTestSuite class has been removed.
311
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000312- Issue #6050: Don't fail extracting a directory from a zipfile if
313 the directory already exists.
314
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000315- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
316 than an int, which makes some operations possible under 64-bit Linux (e.g.
317 DN_MULTISHOT with F_NOTIFY).
318
Antoine Pitrou716c4442009-05-23 19:04:03 +0000319- Issue #5761: Add the name of the underlying file to the repr() of various
320 IO objects.
321
R. David Murraycaa27b72009-05-23 18:49:56 +0000322- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
323 by Musashi Tamura, tests by Marcin Bachry.
324
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000325- Issue #1983: Fix functions taking or returning a process identifier to use
326 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
327 a process identifier type wider than the standard C integer type.
328
R. David Murray87e20742009-05-23 01:30:26 +0000329- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
330 Patch by Farhan Ahmad, test by Marcin Bachry.
331
Antoine Pitrou6e610062009-05-15 17:04:50 +0000332- Issue #2116: Weak references and weak dictionaries now support copy()ing and
333 deepcopy()ing.
334
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000335- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
336
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000337- Issue #5918: Fix a crash in the parser module.
338
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000339- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
340
Antoine Pitroue4501852009-05-14 18:55:55 +0000341- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
342 library. This means, for example, that opening an UTF-16 text file in
343 append mode doesn't add a BOM at the end of the file if the file isn't
344 empty.
345
R. David Murray74b89242009-05-13 17:33:03 +0000346- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
347 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
348 corrects a pydoc regression.
349
R. David Murray99352742009-05-07 18:24:38 +0000350- Issue 5955: aifc's close method did not close the file it wrapped,
351 now it does. This also means getfp method now returns the real fp.
352
Benjamin Peterson932073a2009-05-23 16:14:33 +0000353Installation
354------------
355
356- Issue #6047: fullinstall has been removed because Python 3's executable will
357 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000358
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000359- Lib/smtpd.py is no longer installed as a script.
360
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000361Extension Modules
362-----------------
363
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000364- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000365
Martin v. Löwise23c8682009-05-29 16:01:34 +0000366- Issue #4873: Fix resource leaks in error cases of pwd and grp.
367
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000368- Issue #6093: Fix off-by-one error in locale.strxfrm.
369
Benjamin Peterson744af442009-05-23 18:51:49 +0000370- The _functools and _locale modules are now built into the libpython shared
371 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000372
Antoine Pitrou20327222009-05-24 20:39:11 +0000373Build
374-----
375
376- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
377 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
378 Clinton Roy.
379
Brett Cannon1262e7c2009-05-11 01:47:11 +0000380Tests
381-----
382
383- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
384 tests on darwin even when the OS was installed on a case-sensitive
385 filesystem. Also fixed tests that should not be run when
386 sys.dont_write_bytecode is true.
387
388
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000389What's New in Python 3.1 beta 1?
390================================
391
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000392*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000393
394Core and Builtins
395-----------------
396
Mark Dickinson865e01a2009-05-07 16:37:01 +0000397- Issue #5914: Add new C API function PyOS_string_to_double, and
398 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
399
Eric Smith741191f2009-05-06 13:08:15 +0000400- Issue #3382: float.__format__, complex.__format__, and %-formatting
401 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
402 affects nan -> NAN and inf -> INF.
403
Mark Hammond5a607a32009-05-06 08:04:54 +0000404- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
405 in all operations, including splitdrive, split, etc. splitunc() now issues
406 a PendingDeprecation warning.
407
Eric Smith63376222009-05-05 14:04:18 +0000408- Issue #5920: For float.__format__, change the behavior with the
409 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
410 to be like 'g' but with at least one decimal point and with a
411 default precision of 12. Previously, the behavior the same but with
412 a default precision of 6. This more closely matches str(), and
413 reduces surprises when adding alignment flags to the empty
414 presentation type. This also affects the new complex.__format__ in
415 the same way.
416
Martin v. Löwis011e8422009-05-05 04:43:17 +0000417- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
418
R. David Murrayb18500d2009-05-04 22:59:07 +0000419- Issue #5890: in subclasses of 'property' the __doc__ attribute was
420 shadowed by classtype's, even if it was None. property now
421 inserts the __doc__ into the subclass instance __dict__.
422
Antoine Pitrou244651a2009-05-04 18:56:13 +0000423- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
424 sequences. Patch by Nick Barnes and Victor Stinner.
425
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000426- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000427
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000428- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
429 received a new method, detach(). detach() disconnects the underlying stream
430 from the buffer or text IO and returns it.
431
Mark Dickinson33841c32009-05-01 15:37:04 +0000432- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
433 floats with absolute value over 1e50. Also remove length
434 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
435 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000436
Eric Smith741191f2009-05-06 13:08:15 +0000437- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000438 format(complex(1, 2./3), '.5') now produces a sensible result.
439
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000440- Issue #5864: Fix empty format code formatting for floats so that it
441 never gives more than the requested number of significant digits.
442
Eric Smith6dc46f52009-04-27 20:39:49 +0000443- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
444 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
445
Eric Smithcc32a112009-04-26 21:35:14 +0000446- Issue #5835: Deprecate PyOS_ascii_formatd.
447
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000448- Issue #4971: Fix titlecase for characters that are their own
449 titlecase, but not their own uppercase.
450
Benjamin Peterson193152c2009-04-25 01:08:45 +0000451- Issue #5283: Setting __class__ in __del__ caused a segfault.
452
Mark Dickinsonad476da2009-04-23 19:14:16 +0000453- Issue #5816: complex(repr(z)) now recovers z exactly, even when
454 z involves nans, infs or negative zeros.
455
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000456- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000457
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000458- Issue #1869 (and many duplicates): make round(x, n) correctly
459 rounded for a float x, by using the decimal <-> binary conversions
460 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
461 consistently agrees with format(x, '.2f').
462
Benjamin Petersonae937c02009-04-18 20:54:08 +0000463- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
464 some builtin types.
465
Eric Smith0923d1d2009-04-16 20:16:10 +0000466- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
467
Eric Smith35e84722009-04-16 20:21:28 +0000468- Issue #5515: str.format() type 'n' combined with commas and leading
469 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000470
471- Implement PEP 378, Format Specifier for Thousands Separator, for
472 floats.
473
Mark Dickinson3370cce2009-04-17 22:40:53 +0000474- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000475 1e11, not 1e12. This avoids printing 13 significant digits in
476 situations where only 12 of them are correct. Example problem
477 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
478 long time.)
479
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000480- Issue #1580: On most platforms, use a 'short' float repr: for a
481 finite float x, repr(x) now outputs a string based on the shortest
482 sequence of decimal digits that rounds to x. Previous behaviour was
483 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000484 Another minor difference is that the new repr switches to
485 exponential notation at 1e16 instead of the previous 1e17; this
486 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000487
488 There's a new sys attribute sys.float_repr_style, which takes
489 the value 'short' to indicate that we're using short float repr,
490 and 'legacy' if the short float repr isn't available for one
491 reason or another.
492
493 The float repr change involves incorporating David Gay's 'perfect
494 rounding' code into the Python core (it's in Python/dtoa.c). As a
495 secondary consequence, all string-to-float and float-to-string
496 conversions (including all float formatting operations) will be
497 correctly rounded on these platforms.
498
499 See issue 1580 discussions for details of platforms for which
500 this change does not apply.
501
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000502- Issue #5759: float() didn't call __float__ on str subclasses.
503
Georg Brandlabc38772009-04-12 15:51:51 +0000504- The string.maketrans() function is deprecated; there is a new static method
505 maketrans() on the bytes and bytearray classes. This removes confusion about
506 the types string.maketrans() is supposed to work with, and mirrors the
507 methods available on the str class.
508
R. David Murraydc6da8a2009-04-09 22:16:43 +0000509- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
510 its clarity and its speed.
511
Matthias Klose091c7b12009-04-07 13:24:27 +0000512- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
513 to avoid compiler warnings.
514
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000515- Issue #3739: The unicode-internal encoder now reports the number of characters
516 consumed like any other encoder (instead of the number of bytes).
517
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000518Installation
519------------
520
521- Issue #5756: Install idle and pydoc with a 3 suffix.
522
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000523Library
524-------
525
Martin v. Löwis403117a2009-05-24 19:19:17 +0000526- Issue #5311: bdist_msi can now build packages that do not depend on a
527 specific Python version.
528
Raymond Hettingereb816952009-05-29 01:22:18 +0000529- Issue #5150: IDLE's format menu now has an option to strip trailing
530 whitespace.
531
Vinay Sajipaffbd872009-06-11 10:11:47 +0000532- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000533 the right type checkings anymore.
534
Thomas Heller00cfc372009-05-05 19:04:40 +0000535- Issue #4875: On win32, ctypes.util.find_library does no longer
536 return directories.
537
Georg Brandl243ad662009-05-05 09:00:19 +0000538- Issue #5142: Add the ability to skip modules while stepping to pdb.
539
Georg Brandl991f9202009-05-05 08:31:54 +0000540- Issue #1309567: Fix linecache behavior of stripping subdirectories when
541 looking for files given by a relative filename.
542
Georg Brandleaa84ef2009-05-05 08:14:33 +0000543- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
544 turtle demos in Demo/turtle.
545
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000546- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
547 extracting a file to the root directory.
548
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000549- Issue #5913: os.listdir() should fail for empty path on windows.
550
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000551- Issue #5084: unpickling now interns the attribute names of pickled objects,
552 saving memory and avoiding growth in size of subsequent pickles. Proposal
553 and original patch by Jake McGuire.
554
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000555- The json module now works exclusively with str and not bytes.
556
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000557- Issue #3959: The ipaddr module has been added to the standard library.
558 Contributed by Google.
559
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000560- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
561 error when a named pipe is encountered, rather than blocking infinitely.
562
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000563- Issue #5857: tokenize.tokenize() now returns named tuples.
564
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000565- Issue #4305: ctypes should now build again on mipsel-linux-gnu
566
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000567- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
568 string is already in normalized form, by performing a quick check beforehand.
569 Original patch by Rauli Ruohonen.
570
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000571- Issue #5853: calling a function of the mimetypes module from several threads
572 at once could hit the recursion limit if the mimetypes database hadn't been
573 initialized before.
574
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000575- Issue #5854: Updated __all__ to include some missing names and remove some
576 names which should not be exported.
577
Thomas Heller34596a92009-04-24 20:50:00 +0000578- Issue #3102: All global symbols that the _ctypes extension defines
579 are now prefixed with 'Py' or '_ctypes'.
580
581- Issue #5041: ctypes does now allow pickling wide character.
582
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000583- Issue #5812: For the two-argument form of the Fraction constructor,
584 Fraction(m, n), m and n are permitted to be arbitrary Rational
585 instances.
586
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000587- Issue #5812: Fraction('1e6') is valid: more generally, any string
588 that's valid for float() is now valid for Fraction(), with the
589 exception of strings representing NaNs and infinities.
590
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000591- Issue #5734: BufferedRWPair was poorly tested and had several glaring
592 bugs. Patch by Brian Quinlan.
593
R. David Murray9e94ddf2009-04-13 17:06:33 +0000594- Issue #1161031: fix readwrite select flag handling: POLLPRI now
595 results in a handle_expt_event call, not handle_read_event, and POLLERR
596 and POLLNVAL now call handle_close, not handle_expt_event. Also,
597 dispatcher now has an 'ignore_log_types' attribute for suppressing
598 log messages, which is set to 'warning' by default.
599
Matthias Klosea3d29e82009-04-07 13:13:10 +0000600- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
601 new arguments introduced in 2.5.
602
Walter Dörwald1b08b302009-04-25 14:13:56 +0000603- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
604 makeunicodedata.py and regenerated the Unicode database (This fixes
605 u'\u1d79'.lower() == '\x00').
606
Matthias Klose535336f2009-04-07 13:49:45 +0000607Extension Modules
608-----------------
609
Benjamin Petersone04b6272009-05-04 22:25:21 +0000610- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
611 pwd.
612
Mark Dickinsonea835e72009-04-19 20:40:33 +0000613- Issue #5463: In struct module, remove deprecated float coercion
614 for integer type codes: struct.pack('L', 0.3) should now raise
615 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
616 The version number has been bumped to 0.3.
617
Matthias Klose535336f2009-04-07 13:49:45 +0000618- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
619 using Berkley-DB.
620
Nick Coghlan47384702009-04-22 16:13:36 +0000621Tests
622-----
623
624- Issue #5354: New test support function import_fresh_module() makes
625 it easy to import both normal and optimised versions of modules.
626 test_heapq and test_warnings have been adjusted to use it, tests for
627 other modules with both C and Python implementations in the stdlib
628 can be adjusted to use it over time.
629
Walter Dörwald4ba80132009-04-25 12:48:43 +0000630- Issue #5837: Certain sequences of calls to set() and unset() for
631 support.EnvironmentVarGuard objects restored the environment variables
632 incorrectly on __exit__.
633
Benjamin Petersonb173f782009-05-05 22:31:58 +0000634C-API
635-----
636
637- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
638
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000639
Benjamin Petersond1735892009-03-07 18:46:21 +0000640What's New in Python 3.1 alpha 2?
641=================================
642
Benjamin Peterson88f14352009-04-04 21:06:52 +0000643*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000644
645Core and Builtins
646-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000647
Eric Smith1e1d7d22009-04-03 22:25:33 +0000648- Implement PEP 378, Format Specifier for Thousands Separator, for
649 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000650
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000651- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
652
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000653- Issue #5499: The 'c' code for argument parsing functions now only accepts a
654 byte, and the 'C' code only accepts a unicode character.
655
Georg Brandl406b3d82009-04-11 21:24:37 +0000656- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
657 when hitting the recursion limit under certain circumstances.
658
Brett Cannon0759dd62009-04-01 18:13:07 +0000659- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
660
Georg Brandlab6f2f62009-03-31 04:16:10 +0000661- Fix a segfault when running test_exceptions with coverage, caused by
662 insufficient checks in accessors of Exception.__context__.
663
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000664- Issue #5604: non-ASCII characters in module name passed to
665 imp.find_module() were converted to UTF-8 while the path is
666 converted to the default filesystem encoding, causing nonsense.
667
Benjamin Peterson09832742009-03-26 17:15:46 +0000668- Issue #5126: str.isprintable() returned False for space characters.
669
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000670- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
671 the end sys.path, for compatibility with the system install of Python.
672
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000673- Issue #4688: Add a heuristic so that tuples and dicts containing only
674 untrackable objects are not tracked by the garbage collector. This can
675 reduce the size of collections and therefore the garbage collection overhead
676 on long-running programs, depending on their particular use of datatypes.
677
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000678- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
679 improve its performance. Long divisions and remainder operations
680 are now between 50% and 150% faster.
681
Mark Dickinsonbd792642009-03-18 20:06:12 +0000682- Issue #4258: Make it possible to use base 2**30 instead of base
683 2**15 for the internal representation of integers, for performance
684 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
685 --enable-big-digits option to configure, which overrides the
686 default. Add sys.int_info structseq to provide information about
687 the internal format.
688
Mark Dickinson081dfee2009-03-18 14:47:41 +0000689- Issue #4474: PyUnicode_FromWideChar now converts characters outside
690 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
691 and sizeof(Py_UNICODE) == 2.
692
Eric Smith8ec90442009-03-14 12:29:34 +0000693- Issue #5237: Allow auto-numbered fields in str.format(). For
694 example: '{} {}'.format(1, 2) == '1 2'.
695
Antoine Pitrou652e7072009-03-13 19:25:20 +0000696- Issue #5392: when a very low recursion limit was set, the interpreter would
697 abort with a fatal error after the recursion limit was hit twice.
698
Matthias Klose042f1332009-04-04 14:32:42 +0000699- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
700 short file names.
701
Benjamin Petersond1735892009-03-07 18:46:21 +0000702Library
703-------
704
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000705- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000706 mailbox.MH.get_message().
707
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000708- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
709 error substitutions from non-strict codec error callbacks in
710 incrementalencoder and StreamWriter.
711
Georg Brandl33c28812009-04-01 23:07:29 +0000712- Issue #5656: Fix the coverage reporting when running the test suite with
713 the -T argument.
714
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000715- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
716
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000717- Issue #5624: Fix the _winreg module name still used in several modules.
718
Benjamin Petersona1b49012009-03-31 23:11:32 +0000719- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
720
Jesse Nollera9314042009-03-31 22:36:44 +0000721- Issue #5619: Multiprocessing children disobey the debug flag and causes
722 popups on windows buildbots. Patch applied to work around this issue.
723
Jesse Noller32d68c22009-03-31 18:48:42 +0000724- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
725
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000726- Issue #5387: Fixed mmap.move crash by integer overflow.
727
Jesse Nollerf8d00852009-03-31 03:25:07 +0000728- Issue #5261: Patch multiprocessing's semaphore.c to support context
729 manager use: "with multiprocessing.Lock()" works now.
730
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000731- Issue #5236: Change time.strptime() to only take strings. Didn't work with
732 bytes already but the failure was non-obvious.
733
Jesse Noller7af4ef82009-03-30 16:47:15 +0000734- Issue #5177: Multiprocessing's SocketListener class now uses
735 socket.SO_REUSEADDR on all connections so that the user no longer needs
736 to wait 120 seconds for the socket to expire.
737
Benjamin Peterson48e24782009-03-29 13:02:52 +0000738- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
739
Antoine Pitrou66994e12009-03-29 00:45:26 +0000740- Issue #1174606: Calling read() without arguments of an unbounded file
741 (typically /dev/zero under Unix) could crash the interpreter.
742
Benjamin Peterson59406a92009-03-26 17:10:29 +0000743- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
744 io.BufferedRandom have been deprecated for removal in Python 3.2.
745
Lars Gustäbel42e00912009-03-22 20:34:29 +0000746- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
747 forever on incomplete input. That caused tarfile.open() to hang when used
748 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
749 partial bzip2 compressed data.
750
Mark Dickinson79f52032009-03-17 23:12:51 +0000751- Issue #2110: Add support for thousands separator and 'n' type
752 specifier to Decimal.__format__
753
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000754- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
755 '>' alignment characters.
756
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000757- The error detection code in FileIO.close() could fail to reflect the `errno`
758 value, and report it as -1 instead.
759
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000760- Issue #5016: FileIO.seekable() could return False if the file position
761 was negative when truncated to a C int. Patch by Victor Stinner.
762
Mark Dickinsonae681df2009-03-21 10:26:31 +0000763Extension Modules
764-----------------
765
Benjamin Petersone099b372009-04-04 17:09:35 +0000766- Issue #5391: mmap now deals exclusively with bytes.
767
Mark Dickinsonae681df2009-03-21 10:26:31 +0000768- Issue #5463: In struct module, remove deprecated overflow wrapping
769 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000770 struct.error instead of returning b'\xff\xff\xff\xff'. The
771 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
772 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000773
Benjamin Petersond1735892009-03-07 18:46:21 +0000774
Benjamin Petersona58a6262009-03-07 16:34:40 +0000775What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000776================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000777
Benjamin Petersona58a6262009-03-07 16:34:40 +0000778*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000779
780Core and Builtins
781-----------------
782
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000783- The io module has been reimplemented in C for speed.
784
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000785- Give dict views an informative __repr__.
786
Eric Smith5e5c0db2009-02-20 14:25:03 +0000787- Issue #5247: Improve error message when unknown format codes are
788 used when using str.format() with str, int, and float arguments.
789
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000790- Issue #5249: time.strftime returned malformed string when format string
791 contained non ascii character on windows.
792
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000793- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
794 source has already been decoded into str.
795
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000796- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
797 rotating the object pointer by 4 bits to the right.
798
Mark Dickinson87ec0852009-02-09 17:15:59 +0000799- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
800 it now forces its argument to double before testing for infinity.
801
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000802- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
803 returns a non-number type.
804
Benjamin Peterson87618552009-02-08 15:00:52 +0000805- Issue #5182: Removed memoryview.__str__.
806
Mark Dickinsonc008a172009-02-01 13:59:22 +0000807- Issue #1717: Removed builtin cmp() function, dropped tp_compare
808 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000809 the type definition cmpfunc. The tp_compare slot has been renamed
810 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000811
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000812- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000813 were suppressing all exceptions. These include list() and bytearray().
814
Mark Dickinson1124e712009-01-28 21:25:58 +0000815- Issue #4707: round(x, n) now returns an integer if x is an integer.
816 Previously it returned a float.
817
Antoine Pitroub52ec782009-01-25 16:34:23 +0000818- Issue #4753: By enabling a configure option named '--with-computed-gotos'
819 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
820 evaluation loop is compiled with a new dispatch mechanism which gives
821 speedups of up to 20%, depending on the system, on various benchmarks.
822
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000823- Issue #4874: Most builtin decoders now reject unicode input.
824
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000825- Issue #4842: Don't allow trailing 'L' when constructing an integer
826 from a string.
827
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000828- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
829
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000830- Issue #4838: When a module is deallocated, free the memory backing the
831 optional module state data.
832
Mark Dickinson8055afd2009-01-17 10:04:45 +0000833- Issue #4910: Rename nb_long slot to nb_reserved, and change its
834 type to (void *).
835
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000836- Issue #4935: The overflow checking code in the expandtabs() method common
837 to str, bytes and bytearray could be optimized away by the compiler, letting
838 the interpreter segfault instead of raising an error.
839
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000840- Issue #3720: Fix a crash when an iterator modifies its class and removes its
841 __next__ method.
842
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000843- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
844 function no longer attempt to call the __long__ slot to convert an object
845 to an integer. Only the __int__ and __trunc__ slots are examined.
846
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000847- Issue #4893: Use NT threading on CE.
848
Martin v. Löwisec59d042009-01-12 07:59:10 +0000849- Issue #4915: Port sysmodule to Windows CE.
850
Antoine Pitrouab868312009-01-10 15:40:25 +0000851- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
852 common cases are optimized thanks to a dedicated fast path and a moderate
853 amount of loop unrolling.
854
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000855- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
856 collecting the oldest generation) so that allocating lots of objects without
857 destroying them does not show quadratic performance. Based on a proposal by
858 Martin von Löwis at
859 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
860
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000861- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000862 having been closed (for instance, a read() call could return some
863 previously buffered data). Patch by Dmitry Vasiliev.
864
Antoine Pitrou05608432009-01-09 18:53:14 +0000865- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
866 flag to work properly. Furthermore, when specifying -u, the text stdout
867 and stderr streams have line-by-line buffering enabled (the default being
868 to buffer arbitrary chunks of data).
869
Raymond Hettinger35631532009-01-09 03:58:09 +0000870- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
871 instead of ints (reducing its size from 4 to 8 times thereby reducing
872 Python's overall memory).
873
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000874- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
875 an existing .py counterpart, override the co_filename attributes of all
876 code objects if the original filename is obsolete (which can happen if the
877 file has been renamed, moved, or if it is accessed through different paths).
878 Patch by Ziga Seilnacht and Jean-Paul Calderone.
879
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000880- Issue #4580: Fix slicing of memoryviews when the item size is greater than
881 one byte. Also fixes the meaning of len() so that it returns the number of
882 items, rather than the size in bytes.
883
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000884- Issue #4075: Use OutputDebugStringW in Py_FatalError.
885
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000886- Issue #4747: When the terminal does not use utf-8, executing a script with
887 non-ascii characters in its name could fail with a "SyntaxError: None" error.
888
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000889- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000890 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000891
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000892- Issue #3680: Reference cycles created through a dict, set or deque iterator
893 did not get collected.
894
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000895- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
896 where the tp_hash and tp_dict slots are both NULL.
897
Georg Brandlccc47b62008-12-28 11:44:14 +0000898- Issue #4759: None is now allowed as the first argument of
899 bytearray.translate(). It was always allowed for bytes.translate().
900
Skip Montanaro80072cb2008-12-23 03:51:14 +0000901- Added test case to ensure attempts to read from a file opened for writing
902 fail.
903
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000904- Issue #3106: Speedup some comparisons (str/str and int/int).
905
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000906- Issue #2183: Simplify and optimize bytecode for list, dict and set
907 comprehensions. Original patch for list comprehensions by Neal Norwitz.
908
Antoine Pitrou621601a2008-12-17 23:18:19 +0000909- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
910 print elapsed times, not only when some objects are uncollectable /
911 unreachable. Original patch by Neil Schemenauer.
912
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000913- Issue #3439: Add a bit_length method to int.
914
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000915- Issue #2173: When getting device encoding, check that return value of
916 nl_langinfo is not the empty string. This was causing silent build
917 failures on OS X.
918
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000919- Issue #4597: Fixed several opcodes that weren't always propagating
920 exceptions.
921
922- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000923 context manager returns a value that cannot be converted to a bool.
924
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000925- Issue #4445: Replace "sizeof(PyBytesObject)" with
926 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
927 bytes instances. On a typical machine this saves 3 bytes of memory
928 (on average) per allocation of a bytes instance.
929
Christian Heimesa872de52008-12-05 08:26:55 +0000930- Issue #4533: File read operation was dreadfully slow due to a slowly
931 growing read buffer. Fixed by using the same growth rate algorithm as
932 Python 2.x.
933
Antoine Pitrou5504e892008-12-06 21:27:53 +0000934- Issue #4509: Various issues surrounding resize of bytearray objects to
935 which there are buffer exports (e.g. memoryview instances).
936
Georg Brandlf9734072008-12-07 15:30:06 +0000937- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
938 method on file objects with closefd=False. The file descriptor is still
939 kept open but the file object behaves like a closed file. The ``FileIO``
940 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000941
Antoine Pitroubc420402008-12-07 20:14:49 +0000942- Issue #4569: Interpreter crash when mutating a memoryview with an item size
943 larger than 1.
944
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000945- Issue #4748: Lambda generators no longer return a value.
946
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000947- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
948
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000949- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
950 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
951 step. This avoids problems with counting UTF-8 bytes that ignores the effect
952 of using the replace error handler in PyUnicode_DecodeUTF8().
953
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000954Library
955-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000956
Tarek Ziadé3cc12f62009-07-22 09:03:01 +0000957- Issue #6545: Removed assert statements in distutils.Extension, so the
958 behavior is similar when used with -O.
959
Tarek Ziadé24448fa2009-07-11 11:01:14 +0000960- Issue #6459: distutils.command.build_ext.get_export_symbols now uses the
961 "PyInit" prefix, rather than "init".
962
Georg Brandld80344f2009-08-13 12:26:19 +0000963- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
964
Tarek Ziadé7e646002009-07-10 09:16:07 +0000965- Issue #6455: Fixed test_build_ext under win32.
966
Tarek Ziadé35c88a82009-07-04 02:05:51 +0000967- Issue #6413: Fixed the log level in distutils.dist for announce.
968
Tarek Ziadé385029f2009-07-03 08:37:27 +0000969- Issue #6403: Fixed package path usage in build_ext.
970
Tarek Ziadé2c3de402009-06-29 16:46:14 +0000971- Issue #6365: Distutils build_ext inplace mode was copying the compiled
972 extension in a subdirectory if the extension name had dots.
973
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000974- Issue #6287: Added the license field in Distutils documentation.
975
Tarek Ziadéff543362009-06-11 09:25:41 +0000976- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
977
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000978- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
979 in Makefiles. This prevents compile errors when using syntax like:
980 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
981
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +0000982- Issue #6131: test_modulefinder leaked when run after test_distutils.
983 Patch by Hirokazu Yamamoto.
984
Tarek Ziadé77c8b372009-05-28 13:01:13 +0000985- Issue #6048: Now Distutils uses the tarfile module in archive_util.
986
Vinay Sajipaffbd872009-06-11 10:11:47 +0000987- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +0000988 and tests on pywin32 by Tim Golden.
989
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +0000990- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
991
Tarek Ziadéd18a84e2009-05-18 08:07:46 +0000992- Issue #6046: Fixed the library extension when distutils build_ext is used
993 inplace. Initial patch by Roumen Petrov.
994
Vinay Sajipaffbd872009-06-11 10:11:47 +0000995- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +0000996 subcommand.
997
Tarek Ziadé4210c6e2009-05-14 20:20:47 +0000998- Issue #6022: a test file was created in the current working directory by
999 test_get_outputs in Distutils.
1000
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001001- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1002 inplace option. Initial patch by kxroberto.
1003
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001004- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1005 for old-style extensions.
1006
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001007- Issue #5976: Fixed Distutils test_check_environ.
1008
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001009- Issue #5941: Distutils build_clib command was not working anymore because
1010 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1011 Makefile besides AR and make Distutils use it. Original patch by David
1012 Cournapeau.
1013
R. David Murrayb507d2e2009-04-29 15:34:32 +00001014- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1015
Vinay Sajipaffbd872009-06-11 10:11:47 +00001016- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001017 anymore.
1018
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001019- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001020 sysconfig.get_config_vars.
1021
Tarek Ziadé23336082009-04-25 12:39:56 +00001022- Issue #4951: Fixed failure in test_httpservers.
1023
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001024- Issue #5795: Fixed test_distutils failure on Debian ppc.
1025
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001026- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1027
Georg Brandl1f9fa312009-04-27 16:42:58 +00001028- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1029 a value in SafeConfigParser.
1030
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001031- Issue #5732: added a new command in Distutils: check.
1032
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001033- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001034 platforms. Initial patch by Paul Moore.
1035
Tarek Ziadéf6370502009-04-05 22:57:21 +00001036- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1037 Initial fix by Steven Bethard.
1038
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001039- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1040 Initial fix by Wayne Davison.
1041
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001042- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001043
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001044- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001045
Brett Cannonf47e84c2009-04-01 16:06:01 +00001046- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1047 instead of performing them in functions. Helps prevent import deadlocking in
1048 threads.
1049
R. David Murraye59482e2009-04-01 03:42:00 +00001050- Issue #2522: locale.format now checks its first argument to ensure it has
1051 been passed only one pattern, avoiding mysterious errors where it appeared
1052 that it was failing to do localization.
1053
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001054- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1055 Brandl.
1056
Antoine Pitrou350370c2009-03-14 00:13:13 +00001057- Issue #1222: locale.format() bug when the thousands separator is a space
1058 character.
1059
Tarek Ziadé516db942009-03-11 12:52:00 +00001060- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1061 Tim Golden.
1062
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001063- collections.deque() objects now have a read-only attribute called maxlen.
1064
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001065- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1066 it is has been populated and properly configured in order to prevent
1067 window flashing.
1068
Guilherme Polo56f5be52009-03-07 01:54:57 +00001069- Issue #4792: Prevent a segfault in _tkinter by using the
1070 guaranteed to be safe interp argument given to the PythonCmd in place of
1071 the Tcl interpreter taken from a PythonCmd_ClientData.
1072
1073- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1074
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001075- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1076 Original patch by Akira Kitada.
1077
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001078- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1079
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001080- Issue #5385: Fixed mmap crash after resize failure on windows.
1081
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001082- Issue #5179: Fixed subprocess handle leak on failure on windows.
1083
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001084- PEP 372: Added collections.OrderedDict().
1085
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001086- The _asdict() for method for namedtuples now returns an OrderedDict().
1087
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001088- configparser now defaults to using an ordered dictionary.
1089
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001090- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1091 import guess_extension`` was used.
1092
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001093- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1094 with same tagname but larger size than first map. (Windows)
1095
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001096- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1097 overrun.
1098
Tarek Ziadéf0721222009-02-28 10:16:43 +00001099- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1100 bdist_rpm command.
1101
1102- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1103
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001104- Issue #5052: make Distutils compatible with 2.3 again.
1105
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001106- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1107 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001108
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001109- Issue #5287: Add exception handling around findCaller() call to help out
1110 IronPython.
1111
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001112- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1113 The file was resized to wrong size.
1114
1115- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1116
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001117- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001118 from the package_data and the data_files metadata.
1119
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001120- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001121 support.TempdirManager, to avoid writing in the tests directory.
1122
Tarek Ziadé68c50952009-02-13 23:04:17 +00001123- Issue #4524: distutils build_script command failed with --with-suffix=3.
1124 Initial patch by Amaury Forgeot d'Arc.
1125
Tarek Ziadé811d6242009-02-13 22:26:15 +00001126- Issue #2461: added tests for distutils.util
1127
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001128- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1129 which inherited from numbers.py which did not have __slots__ defined. The
1130 numbers hierarchy now has its own __slots__ declarations.
1131
Antoine Pitroub353c122009-02-11 00:39:14 +00001132- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1133 encoding.
1134
Thomas Heller465c8022009-02-10 18:59:04 +00001135- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1136 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1137
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001138- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1139 under NT and OS2. Patch by Philip Jenvey.
1140
Brett Cannonbefb14f2009-02-10 02:10:16 +00001141- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1142 to be recreated. This avoids a timing hole thanks to the old reliance on the
1143 ctime of the files involved.
1144
Guilherme Polob681df42009-02-09 22:33:59 +00001145- Issue #5122: Synchronize tk load failure check to prevent a potential
1146 deadlock.
1147
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001148- Issue #1818: collections.namedtuple() now supports a keyword argument
1149 'rename' which lets invalid fieldnames be automatically converted to
1150 positional names in the form, _1, _2, ...
1151
Guilherme Poloae098992009-02-09 16:44:24 +00001152- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1153
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001154- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1155 public documented method ``ZipImporter.get_filename()``.
1156
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001157- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1158 the execution of packages by looking for and executing a ``__main__``
1159 submodule when a package name is supplied. Initial patch by Andi
1160 Vajda.
1161
Guilherme Polo491aee22009-02-06 23:16:11 +00001162- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1163 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1164 Tkapp_Call when calling from a thread different than the one that created
1165 the Tcl interpreter. Patch by Robert Hancock.
1166
Eric Smith0e5b5622009-02-06 01:32:42 +00001167- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1168 Ross Light.
1169
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001170- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001171 environment/Makefile. Patch by Douglas Greiman.
1172
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001173- Issue #1276768: The verbose option was not used in the code of
1174 distutils.file_util and distutils.dir_util.
1175
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001176- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001177 --enabled-shared activated. Initial patch by Dave Peterson.
1178
Guilherme Polo7f423952009-02-02 21:17:09 +00001179- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1180
Raymond Hettinger85602262009-02-03 04:19:10 +00001181- The shelve module now defaults to pickle protocol 3.
1182
Brett Cannone61426e2009-01-30 01:31:34 +00001183- Fix a bug in the trace module where a bytes object from co_lnotab had its
1184 items being passed through ord().
1185
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001186- Issue #2047: shutil.move() could believe that its destination path was
1187 inside its source path if it began with the same letters (e.g. "src" vs.
1188 "src.new").
1189
Guilherme Polo5f238482009-01-28 14:41:10 +00001190- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1191
Raymond Hettinger89e12962009-01-26 02:09:03 +00001192- Removed isSequenceType(), isMappingType, and isNumberType() from the
1193 operator module; use the abstract base classes instead. Also removed
1194 the repeat() function; use mul() instead.
1195
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001196- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001197 collections.namedtuple() relied on __name__ being defined.
1198
1199- Backport importlib from Python 3.1. Only the import_module() function has
1200 been backported to help facilitate transitions from 2.7 to 3.1.
1201
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001202- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1203 the tar file was overriden by the gztar one.
1204
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001205- Issue #4863: distutils.mwerkscompiler has been removed.
1206
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001207- Added a new itertools functions: combinations_with_replacement()
1208 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001209
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001210- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001211 allowed non-integer arguments.
1212
Jesse Noller41faa542009-01-25 03:45:53 +00001213- Fix and properly document the multiprocessing module's logging
1214 support, expose the internal levels and provide proper usage
1215 examples.
1216
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001217- Issue #1672332: fix unpickling of subnormal floats, which was
1218 producing a ValueError on some platforms.
1219
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001220- Issue #3881: Help Tcl to load even when started through the
1221 unreadable local symlink to "Program Files" on Vista.
1222
Martin v. Löwis59e47792009-01-24 14:10:07 +00001223- Issue #4710: Extract directories properly in the zipfile module;
1224 allow adding directories to a zipfile.
1225
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001226- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001227 --without-threads argument. When this occurs, _multiprocessing will
1228 be disabled, and not compiled.
1229
Antoine Pitrou08838b62009-01-21 00:55:13 +00001230- Issue #5008: When a file is opened in append mode with the new IO library,
1231 do an explicit seek to the end of file (so that e.g. tell() returns the
1232 file size rather than 0). This is consistent with the behaviour of the
1233 traditional 2.x file object.
1234
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001235- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1236 parameter was set.
1237
Mark Dickinson8dd05142009-01-20 20:43:58 +00001238- Issue #4842: Always append a trailing 'L' when pickling longs using
1239 pickle protocol 0. When reading, the 'L' is optional.
1240
Brett Cannonafccd632009-01-20 02:21:27 +00001241- Add the importlib package.
1242
Jesse Noller9a0fc972009-01-18 21:12:58 +00001243- Issue #4301: Patch the logging module to add processName support, remove
1244 _check_logger_class from multiprocessing.
1245
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001246- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001247 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001248
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001249- Issue #4959: inspect.formatargspec now works for keyword only arguments
1250 without defaults.
1251
Jesse Noller6214edd2009-01-19 16:23:53 +00001252- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1253 for *nix machines for negative handles and large int handles. Without this check
1254 it is possible to segfault the interpreter.
1255
Jesse Nollerb0516a62009-01-18 03:11:38 +00001256- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1257 in sharedctypes.py.
1258
1259- Issue #1225107: inspect.isclass() returned True for instances with a custom
1260 __getattr__.
1261
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001262- Issue #3826 and #4791: The socket module now closes the underlying socket
1263 appropriately when it is being used via socket.makefile() objects
1264 rather than delaying the close by waiting for garbage collection to do it.
1265
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001266- Issue #1696199: Add collections.Counter() for rapid and convenient
1267 counting.
1268
Antoine Pitrou308705e2009-01-10 16:22:51 +00001269- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1270
Thomas Heller5e4e4272009-01-08 09:34:20 +00001271- Issue #4867: Fixed a crash in ctypes when passing a string to a
1272 function without defining argtypes.
1273
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001274- Issue #4272: Add an optional argument to the GzipFile constructor to override
1275 the timestamp in the gzip stream. The default value remains the current time.
1276 The information can be used by e.g. gunzip when decompressing. Patch by
1277 Jacques Frechet.
1278
Mark Dickinson315a20a2009-01-04 21:34:18 +00001279- Restore Python 2.3 compatibility for decimal.py.
1280
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001281- Issue #3638: Remove functions from _tkinter module level that depend on
1282 TkappObject to work with multiple threads.
1283
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001284- Issue #4718: Adapt the wsgiref package so that it actually works with
1285 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001286 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1287
Raymond Hettinger771ed762009-01-03 19:20:32 +00001288- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1289 to the decimal module.
1290
Georg Brandl3a9b0622009-01-03 22:07:57 +00001291- Fractions.from_float() no longer loses precision for integers too big to
1292 cast as floats.
1293
Mark Dickinsonf9236412009-01-02 23:23:21 +00001294- Issue #4812: add missing underscore prefix to some internal-use-only
1295 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1296
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001297- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001298 did unnecessary work in the common case where no key function was specified.
1299
Georg Brandlb1441c72009-01-03 22:33:39 +00001300- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1301 the function is not a generator.
1302
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001303- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1304 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001305
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001306- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001307 function. Original patch by Thomas Heller.
1308
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001309- Issue #3767: Convert Tk object to string in tkColorChooser.
1310
Martin v. Löwise354d782008-12-29 16:03:04 +00001311- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1312
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001313- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1314 the code under test can be written inline if more practical.
1315
Georg Brandldb7b6b92009-01-01 15:53:14 +00001316- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1317 works as expected in the interactive environment.
1318
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001319- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1320 Gabriel Genellina.
1321
Antoine Pitrou180a3362008-12-14 16:36:46 +00001322- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1323 boundary.
1324
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001325- Issue #4223: inspect.getsource() will now correctly display source code
1326 for packages loaded via zipimport (or any other conformant PEP 302
1327 loader). Original patch by Alexander Belopolsky.
1328
1329- Issue #4201: pdb can now access and display source code loaded via
1330 zipimport (or any other conformant PEP 302 loader). Original patch by
1331 Alexander Belopolsky.
1332
1333- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1334 302 conformant loader) will now work correctly in most cases (they
1335 are still subject to the constraints that exist for all code running
1336 from inside a module loaded via a PEP 302 loader and attempting to
1337 perform IO operations based on __file__). Original patch by
1338 Alexander Belopolsky.
1339
1340- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1341 allows backporting to maintenance branches. Original patch by
1342 Alexander Belopolsky.
1343
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001344- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1345 a non-ASCII letter.
1346
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001347- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1348
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001349- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1350 codec cannot be found. This is for compatibility with the builtin behavior.
1351
Facundo Batista708d5812008-12-11 04:20:07 +00001352- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1353 give correct results in the case where one argument is a quiet NaN
1354 and the other is a finite number that requires rounding.
1355
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001356- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1357 libs.
1358
Georg Brandlf9734072008-12-07 15:30:06 +00001359- Added the subprocess.check_call_output() convenience function to get output
1360 from a subprocess on success or raise an exception on error.
1361
1362- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1363 support unusual filenames (such as those containing semi-colons) in
1364 Content-Disposition headers.
1365
1366- Issue #4384: Added logging integration with warnings module using
1367 captureWarnings(). This change includes a NullHandler which does nothing;
1368 it will be of use to library developers who want to avoid the "No handlers
1369 could be found for logger XXX" message which can appear if the library user
1370 doesn't configure logging.
1371
1372- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1373 exception.
1374
Georg Brandleee31162008-12-07 15:15:22 +00001375- Issue #4529: fix the parser module's validation of try-except-finally
1376 statements.
1377
1378- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1379 not a malformed option.
1380
1381- Added the subprocess.check_output() convenience function to get output
1382 from a subprocess on success or raise an exception on error.
1383
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001384- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1385 the corresponding tests now pass.
1386
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001387- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1388 it was calling the wrong open() function.
1389
Fred Drake9a0a65b2008-12-04 19:24:50 +00001390- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1391 support unusual filenames (such as those containing semi-colons) in
1392 Content-Disposition headers.
1393
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001394- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1395 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1396
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001397- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1398 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1399 and getservbyport().
1400
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001401- Windows locale mapping updated to Vista.
1402
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001403Tools/Demos
1404-----------
1405
Antoine Pitrou8a681222009-02-07 17:13:31 +00001406- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1407 and make it 2.6-compatible.
1408
Guilherme Poloa7d27972009-01-28 16:06:51 +00001409- Ttk demos added in Demo/tkinter/ttk/
1410
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001411- Issue #4677: add two list comprehension tests to pybench.
1412
Georg Brandlb1441c72009-01-03 22:33:39 +00001413
1414Build
1415-----
1416
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001417- Issue #6094: Build correctly with Subversion 1.7.
1418
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001419- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1420
Antoine Pitrou8966c992009-05-01 21:18:27 +00001421- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1422 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1423
Matthias Klose55708cc2009-04-30 08:06:49 +00001424- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001425 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001426
Matthias Klose906785c2009-02-22 23:18:38 +00001427- Link the shared python library with $(MODLIBS).
1428
Martin v. Löwis11f72102009-02-10 13:13:30 +00001429- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1430
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001431- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1432
Martin v. Löwise97637d2009-01-11 09:45:11 +00001433- Issue #4895: Use _strdup on Windows CE.
1434
Georg Brandlb1441c72009-01-03 22:33:39 +00001435- Issue #4472: "configure --enable-shared" now works on OSX
1436
1437- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1438
1439- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1440
1441- Issue #4289: Remove Cancel button from AdvancedDlg.
1442
1443- Issue #1656675: Register a drop handler for .py* files on Windows.
1444
1445- Issue #4120: Exclude manifest from extension modules in VS2008.
1446
1447- Issue #4091: Install pythonxy.dll in system32 again.
1448
1449- Issue #4018: Disable "for me" installations on Vista.
1450
1451- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1452
1453- Issue #4204: Fixed module build errors on FreeBSD 4.
1454
1455
1456C-API
1457-----
1458
Mark Dickinson21776072009-02-10 16:13:25 +00001459- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1460 for negative arguments. Previously, it raised TypeError.
1461
Georg Brandlb1441c72009-01-03 22:33:39 +00001462- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1463
1464- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1465 the GIL is released, or owned by another thread.
1466
1467- Issue #4122: On Windows, fix a compilation error when using the
1468 Py_UNICODE_ISSPACE macro in an extension module.
1469
1470
Mark Dickinsone675f082008-12-11 21:56:00 +00001471Extension Modules
1472-----------------
1473
Gregory P. Smith365a1862009-02-12 07:35:29 +00001474- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1475 supporting objects as input no matter how it was compiled (built in
1476 implementations or external openssl library).
1477
Mark Dickinson29500f62009-01-15 15:36:10 +00001478- Issue #4397: Fix occasional test_socket failure on OS X.
1479
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001480- Issue #4279: Fix build of parsermodule under Cygwin.
1481
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001482- Issue #4751: hashlib now releases the GIL when hashing large buffers
1483 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1484 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1485
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001486- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1487
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001488- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1489 or decompress several streams at once on multi-CPU systems. Also, the GIL
1490 is now released when computing the CRC of a large buffer. Patch by ebfe.
1491
Georg Brandlb1441c72009-01-03 22:33:39 +00001492- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1493
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001494- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1495
Mark Dickinsone675f082008-12-11 21:56:00 +00001496- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1497 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001498
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001499- Issue #4583: array.array would not always prohibit resizing when a buffer
1500 has been exported, resulting in an interpreter crash when accessing the
1501 buffer.
1502
Martin v. Löwis841edad2008-11-30 10:36:49 +00001503
Jack Diederiche0cbd692009-04-01 04:27:09 +00001504- Issue #5228: Make functools.partial objects can now be pickled.
1505
Guilherme Polo9de29af2009-01-28 20:40:48 +00001506Tests
1507-----
1508
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001509- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1510 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1511 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1512 skip the tests if DISPLAY is defined but can't be used.
1513
R. David Murraya21e4ca2009-03-31 23:16:50 +00001514- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001515 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001516 from test support, which does the conversion.
1517
Guilherme Polo9de29af2009-01-28 20:40:48 +00001518- Issue #5083: New 'gui' resource for regrtest.
1519
1520
Brett Cannon7317c1e2008-11-25 19:19:17 +00001521Docs
1522----
1523
Georg Brandl52b92cc2008-05-25 09:43:03 +00001524
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001525**(For information about older versions, consult the HISTORY file.)**