blob: bc7f5b06fddd32eca61ec2b704f939a73d83491a [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'Arcccd686a2009-08-29 23:00:38 +000015- Issue #6750: A text file opened with io.open() could duplicate its output
16 when writing from multiple threads at the same time.
17
Benjamin Peterson14327712009-08-15 13:23:05 +000018- Issue #6707: dir() on an uninitialized module caused a crash.
19
Georg Brandl953152f2009-07-22 12:03:59 +000020- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
21
Raymond Hettingere805ecc2009-07-27 20:16:37 +000022- Issue #6573: set.union() stopped processing inputs if an instance of self
23 occurred in the argument chain.
24
R. David Murray046f7232009-07-19 02:22:05 +000025- Issue #6070: On posix platforms import no longer copies the execute bit
26 from the .py file to the .pyc file if it is set.
27
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000028- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
29
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +000030- Issue #6428: Since Python 3.0, the __bool__ method must return a bool
31 object, and not an int. Fix the corresponding error message, and the
32 documentation.
33
Benjamin Petersonf1664ae2009-07-01 01:28:55 +000034- The deprecated PyCObject has been removed.
35
Mark Dickinson835a6c82009-06-30 15:45:17 +000036- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
37 This fixes a build failure on HP-UX: int32_t and uint32_t are
38 defined in inttypes.h instead of stdint.h on that platform.
39
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +000040- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +000041 the 'surrogateescape' error handler, a string which contains unpaired
42 surrogates.
43
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +000044- Issue #4856: Remove checks for win NT.
45
Benjamin Peterson466a7822009-07-02 21:44:01 +000046C-API
47-----
48
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000049- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
50 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
51 should used for accessing the d_type and d_name members of structures
52 using PyDescr_COMMON.
53
54- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +000055
Benjamin Peterson466a7822009-07-02 21:44:01 +000056- The code flags for old __future__ features are now available again.
57
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +000058- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
59 PyCode_Addr2Line().
60
61- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
62 object at a specified file, function, and line number.
63
64- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
65 ``const char *`` as the string is stored beyond the call.
66
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000067
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000068Library
69-------
70
Brett Cannon1c1dcbf2009-08-30 20:22:21 +000071- Trying to import a submodule from a module that is not a package, ImportError
72 should be raised, not AttributeError.
73
Brett Cannonde4ebfe2009-08-30 19:53:48 +000074- When the globals past to importlib.__import__() has __package__ set to None,
75 fall back to computing what __package__ should be instead of giving up.
76
Brett Cannon6afbaef2009-08-30 19:08:58 +000077- Raise a TypeError when the name of a module to be imported for
78 importlib.__import__ is not a string (was raising an
79 AttributeError before).
80
Brett Cannon9e0e1a62009-08-30 18:28:46 +000081- Allow the fromlist passed into importlib.__import__ to be any iterable.
82
Brett Cannon4d75fc12009-08-30 03:47:36 +000083- Have importlib raise ImportError if None is found in sys.modules.
84
Lars Gustäbelbfdfdda2009-08-28 19:59:59 +000085- Issue #6054: Do not normalize stored pathnames in tarfile.
86
Mark Dickinsond314e1b2009-08-28 13:39:53 +000087- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
88 payloads are now ordered by integer value rather than lexicographically.
89
Guilherme Polobcd03df2009-08-18 15:35:57 +000090- Issue #1356969: Add missing info methods in tix.HList.
91
92- Issue #1522587: New constants and methods for the tix.Grid widget.
93
94- Issue #1250469: Fix the return value of tix.PanedWindow.panes.
95
96- Issue #1119673: Do not override tkinter.Text methods when creating a
97 ScrolledText.
98
Gregory P. Smith01099702009-08-16 18:58:46 +000099- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
100
Guilherme Poloc3b2ae42009-08-16 14:46:16 +0000101- Issue #1135: Add the XView and YView mix-ins to avoid duplicating
102 the xview* and yview* methods.
103
Antoine Pitroua0ceb732009-08-06 20:29:56 +0000104- Issue #6629: Fix a data corruption issue in the new I/O library, which could
105 occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
106 "wb+" mode) after having buffered a certain amount of data for reading. This
107 bug was not present in the pure Python implementation.
108
Mark Dickinsonea1158f2009-08-06 16:06:25 +0000109- Issue #6622: Fix "local variable 'secret' referenced before
110 assignment" bug in POP3.apop.
111
Mark Dickinson45f799f2009-08-02 20:08:54 +0000112- Issue #2715: Remove remnants of Carbon.File from binhex module.
113
Mark Dickinson345adc42009-08-02 10:14:23 +0000114- Issue #6595: The Decimal constructor now allows arbitrary Unicode
115 decimal digits in input, as recommended by the standard. Previously
116 it was restricted to accepting [0-9].
117
Jack Diederich36596a32009-07-26 22:23:04 +0000118- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
119 DO/DONT correctly.
120
Senthil Kumaran67305382009-07-26 04:46:00 +0000121- Issue #1424152: Fix for http.client, urllib.request to support SSL while
122 working through proxy. Original patch by Christopher Li, changes made by
123 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +0000124
Brett Cannon69194272009-07-20 04:23:48 +0000125- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
126 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
127 and PyPycLoader inherit from this class and provide implementations in
128 relation to other methods required by the ABCs.
129
Brett Cannon64ef00f2009-07-20 03:19:18 +0000130- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
131 the documentation said it did even though the code in PyLoader relied on the
132 abstract method required by ResourceLoader.
133
Mark Dickinson85424c92009-07-18 14:41:42 +0000134- Issue #6431: Make Fraction type return NotImplemented when it doesn't
135 know how to handle a comparison without loss of precision. Also add
136 correct handling of infinities and nans for comparisons with float.
137
Antoine Pitrouf3637322009-08-06 21:00:37 +0000138- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +0000139
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +0000140- Issue #6358: The exit status of a command started with os.popen() was
141 reported differently than it did with python 2.x.
142
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +0000143- Issue #6323: The pdb debugger did not exit when running a script with a
144 syntax error.
145
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000146- Issue #3392: The subprocess communicate() method no longer fails in select()
147 when file descriptors are large; communicate() now uses poll() when possible.
148
Antoine Pitrou54923952009-07-01 14:53:06 +0000149- Issue #6369: Fix an RLE decompression bug in the binhex module.
150
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000151- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
152
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000153- The deprecated function string.maketrans has been removed.
154
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000155- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
156 sys.path.
157
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000158- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
159
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000160Extension Modules
161-----------------
162
Brett Cannon2f827382009-08-13 19:58:01 +0000163- Fix a segfault that could be triggered by expat with specially formed input.
164
Mark Dickinson1f268282009-07-28 17:22:36 +0000165- Issue #6561: '\d' in a regex now matches only characters with
166 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
167 matched characters with category 'No'.
168
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000169- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000170 failing due to the resize restriction in-place when the object has exported
171 buffers.
172
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000173- Issue #2389: Array objects are now pickled in a portable manner.
174
Martin v. Löwis95c46012009-06-28 09:36:14 +0000175Build
176-----
177
Guilherme Polo5d377bd2009-08-16 14:44:14 +0000178- Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6.
179
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000180- Issue 4601: 'make install' did not set the appropriate permissions on
181 directories.
182
Martin v. Löwis95c46012009-06-28 09:36:14 +0000183- Issue 5390: Add uninstall icon independent of whether file
184 extensions are installed.
185
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000186Documenation
187------------
188
Brett Cannon757df6e2009-08-30 04:00:12 +0000189- Document that importing a module that has None in sys.modules triggers an
190 ImportError.
191
Tarek Ziadéf3b33222009-08-21 14:22:45 +0000192- Issue #6556: Fixed the Distutils configuration files location explanation
193 for Windows.
194
Brett Cannonb49c70c2009-07-15 04:08:33 +0000195Tests
196-----
197
Brett Cannon3c273842009-07-20 00:14:29 +0000198- Fixed tests in importlib.test.source.test_abc_loader that were masking
199 the proper exceptions that should be raised for missing or improper code
200 object bytecode.
201
Brett Cannonb49c70c2009-07-15 04:08:33 +0000202- Removed importlib's custom test discovery code and switched to
203 unittest.TestLoader.discover().
204
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000205
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000206What's New in Python 3.1?
207=========================
208
209*Release date: 27-June-2009*
210
211Core and Builtins
212-----------------
213
Mark Dickinsonad195562009-06-24 19:01:32 +0000214- Issue #6334: Fix bug in range length calculation for ranges with
215 large arguments.
216
Raymond Hettinger159eac92009-06-23 20:38:54 +0000217- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
218 because it wasn't recognized as a sequence).
219
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000220Library
221-------
222
Georg Brandld07ac642009-08-13 07:50:57 +0000223- Issue #6126: Fixed pdb command-line usage.
224
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000225- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000226
Facundo Batista10706e22009-06-19 20:34:30 +0000227- Issue #6274: Fixed possible file descriptors leak in subprocess.py
228
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000229- Accessing io.StringIO.buffer now raises an AttributeError instead of
230 io.UnsupportedOperation.
231
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000232- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000233 (On Unix)
234
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000235- Issue #1202: zipfile module would cause a struct.error when attempting to
236 store files with a CRC32 > 2**31-1.
237
Matthias Kloseab2b7552009-06-22 13:05:52 +0000238Extension Modules
239-----------------
240
241- Issue #5590: Remove unused global variable in pyexpat extension.
242
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000243
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000244What's New in Python 3.1 Release Candidate 2?
245=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000246
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000247*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000248
249Core and Builtins
250-----------------
251
Raymond Hettinger94f55832009-06-12 18:40:16 +0000252- Fixed SystemError triggered by "range([], 1, -1)".
253
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000254- Issue #5924: On Windows, a large PYTHONPATH environment variable
255 (more than 255 characters) would be completely ignored.
256
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000257- Issue #4547: When debugging a very large function, it was not always
258 possible to update the lineno attribute of the current frame.
259
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000260- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000261 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000262
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000263Library
264-------
265
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000266- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000267 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000268 Popen. Tested under win32 to build the py-postgresql project.
269
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000270- Issue #6258: Support AMD64 in bdist_msi.
271
R. David Murray58641de2009-06-12 15:33:19 +0000272- Issue #6195: fixed doctest to no longer try to read 'source' data from
273 binary files.
274
Vinay Sajipaffbd872009-06-11 10:11:47 +0000275- Issue #5262: Fixed bug in next rollover time computation in
276 TimedRotatingFileHandler.
277
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000278- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
279 errors property. Additionally, the errors and encoding properties of StringIO
280 are always None now.
281
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000282- Issue #6137: The pickle module now translates module names when loading
283 or dumping pickles with a 2.x-compatible protocol, in order to make data
284 sharing and migration easier. This behaviour can be disabled using the
285 new `fix_imports` optional argument.
286
Raymond Hettinger40925d22009-06-04 18:32:39 +0000287- Removed the ipaddr module.
288
Georg Brandlb54d8012009-06-04 09:11:51 +0000289- Issue #3613: base64.{encode,decode}string are now called
290 base64.{encode,decode}bytes which reflects what type they accept and return.
291 The old names are still there as deprecated aliases.
292
Georg Brandl317185a2009-06-04 09:00:56 +0000293- Issue #5767: Remove sgmlop support from xmlrpc.client.
294
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000295- Issue #6150: Fix test_unicode on wide-unicode builds.
296
Antoine Pitrouc06de472009-05-30 21:04:26 +0000297- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
298 parameters.
299
Martin v. Löwis79b13872009-06-01 04:13:14 +0000300Windows
301-------
302
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000303- Issue #6221: Delete test registry key before running the test.
304
Martin v. Löwis79b13872009-06-01 04:13:14 +0000305- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
306
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000307C-API
308-----
309
310- Issue #5735: Python compiled with --with-pydebug should throw an
311 ImportError when trying to import modules compiled without
312 --with-pydebug, and vice-versa.
313
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000314
Brett Cannonc6d936e2009-06-07 20:09:53 +0000315Build
316-----
317
318- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
319 added LIBS to OS X framework builds.
320
Ronald Oussoren99aab652009-06-08 21:22:57 +0000321- Issue #5809: Specifying both --enable-framework and --enable-shared is
322 an error. Configure now explicity tells you about this.
323
324
Brett Cannonc6d936e2009-06-07 20:09:53 +0000325
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000326What's New in Python 3.1 release candidate 1?
327=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000328
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000329*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000330
331Core and Builtins
332-----------------
333
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000334- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
335 of the command line.
336
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000337- Issue #6012: Add cleanup support to O& argument parsing.
338
Eric Smith41669ca2009-05-23 14:23:22 +0000339- Issue #6089: Fixed str.format with certain invalid field specifiers
340 that would raise SystemError.
341
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000342- Issue #5982: staticmethod and classmethod now expose the wrapped
343 function with __func__.
344
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000345- Added support for multiple context managers in the same with-statement.
346 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000347
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000348- Issue #5829: complex("1e500") no longer raises OverflowError. This
349 makes it consistent with float("1e500") and interpretation of real
350 and imaginary literals.
351
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000352- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
353
R. David Murraydd226ea2009-05-13 12:27:21 +0000354- Issue #5994: the marshal module now has docstrings.
355
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000356- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
357 (1) inf and nan strings with trailing whitespace were incorrectly
358 rejected; (2) parsing of strings representing infinities and nans
359 was locale aware; and (3) the interpretation of fromhex('-nan')
360 didn't match that of float('-nan').
361
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000362Library
363-------
364
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000365- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
366
R. David Murrayfb123912009-05-28 18:19:00 +0000367- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
368
R. David Murray1f1b9d32009-05-27 20:56:59 +0000369- Issue #6121: pydoc now ignores leading and trailing spaces in the
370 argument to the 'help' function.
371
Georg Brandlfaf41492009-05-26 18:31:11 +0000372- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
373 arguments for strings with a space in them.
374
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000375- collections.namedtuple() was not working with the following field
376 names: cls, self, tuple, itemgetter, and property.
377
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000378- In unittest, using a skipping decorator on a class is now equivalent to
379 skipping every test on the class. The ClassTestSuite class has been removed.
380
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000381- Issue #6050: Don't fail extracting a directory from a zipfile if
382 the directory already exists.
383
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000384- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
385 than an int, which makes some operations possible under 64-bit Linux (e.g.
386 DN_MULTISHOT with F_NOTIFY).
387
Antoine Pitrou716c4442009-05-23 19:04:03 +0000388- Issue #5761: Add the name of the underlying file to the repr() of various
389 IO objects.
390
R. David Murraycaa27b72009-05-23 18:49:56 +0000391- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
392 by Musashi Tamura, tests by Marcin Bachry.
393
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000394- Issue #1983: Fix functions taking or returning a process identifier to use
395 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
396 a process identifier type wider than the standard C integer type.
397
R. David Murray87e20742009-05-23 01:30:26 +0000398- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
399 Patch by Farhan Ahmad, test by Marcin Bachry.
400
Antoine Pitrou6e610062009-05-15 17:04:50 +0000401- Issue #2116: Weak references and weak dictionaries now support copy()ing and
402 deepcopy()ing.
403
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000404- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
405
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000406- Issue #5918: Fix a crash in the parser module.
407
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000408- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
409
Antoine Pitroue4501852009-05-14 18:55:55 +0000410- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
411 library. This means, for example, that opening an UTF-16 text file in
412 append mode doesn't add a BOM at the end of the file if the file isn't
413 empty.
414
R. David Murray74b89242009-05-13 17:33:03 +0000415- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
416 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
417 corrects a pydoc regression.
418
R. David Murray99352742009-05-07 18:24:38 +0000419- Issue 5955: aifc's close method did not close the file it wrapped,
420 now it does. This also means getfp method now returns the real fp.
421
Benjamin Peterson932073a2009-05-23 16:14:33 +0000422Installation
423------------
424
425- Issue #6047: fullinstall has been removed because Python 3's executable will
426 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000427
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000428- Lib/smtpd.py is no longer installed as a script.
429
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000430Extension Modules
431-----------------
432
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000433- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000434
Martin v. Löwise23c8682009-05-29 16:01:34 +0000435- Issue #4873: Fix resource leaks in error cases of pwd and grp.
436
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000437- Issue #6093: Fix off-by-one error in locale.strxfrm.
438
Benjamin Peterson744af442009-05-23 18:51:49 +0000439- The _functools and _locale modules are now built into the libpython shared
440 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000441
Antoine Pitrou20327222009-05-24 20:39:11 +0000442Build
443-----
444
445- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
446 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
447 Clinton Roy.
448
Brett Cannon1262e7c2009-05-11 01:47:11 +0000449Tests
450-----
451
452- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
453 tests on darwin even when the OS was installed on a case-sensitive
454 filesystem. Also fixed tests that should not be run when
455 sys.dont_write_bytecode is true.
456
457
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000458What's New in Python 3.1 beta 1?
459================================
460
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000461*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000462
463Core and Builtins
464-----------------
465
Mark Dickinson865e01a2009-05-07 16:37:01 +0000466- Issue #5914: Add new C API function PyOS_string_to_double, and
467 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
468
Eric Smith741191f2009-05-06 13:08:15 +0000469- Issue #3382: float.__format__, complex.__format__, and %-formatting
470 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
471 affects nan -> NAN and inf -> INF.
472
Mark Hammond5a607a32009-05-06 08:04:54 +0000473- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
474 in all operations, including splitdrive, split, etc. splitunc() now issues
475 a PendingDeprecation warning.
476
Eric Smith63376222009-05-05 14:04:18 +0000477- Issue #5920: For float.__format__, change the behavior with the
478 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
479 to be like 'g' but with at least one decimal point and with a
480 default precision of 12. Previously, the behavior the same but with
481 a default precision of 6. This more closely matches str(), and
482 reduces surprises when adding alignment flags to the empty
483 presentation type. This also affects the new complex.__format__ in
484 the same way.
485
Martin v. Löwis011e8422009-05-05 04:43:17 +0000486- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
487
R. David Murrayb18500d2009-05-04 22:59:07 +0000488- Issue #5890: in subclasses of 'property' the __doc__ attribute was
489 shadowed by classtype's, even if it was None. property now
490 inserts the __doc__ into the subclass instance __dict__.
491
Antoine Pitrou244651a2009-05-04 18:56:13 +0000492- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
493 sequences. Patch by Nick Barnes and Victor Stinner.
494
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000495- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000496
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000497- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
498 received a new method, detach(). detach() disconnects the underlying stream
499 from the buffer or text IO and returns it.
500
Mark Dickinson33841c32009-05-01 15:37:04 +0000501- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
502 floats with absolute value over 1e50. Also remove length
503 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
504 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000505
Eric Smith741191f2009-05-06 13:08:15 +0000506- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000507 format(complex(1, 2./3), '.5') now produces a sensible result.
508
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000509- Issue #5864: Fix empty format code formatting for floats so that it
510 never gives more than the requested number of significant digits.
511
Eric Smith6dc46f52009-04-27 20:39:49 +0000512- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
513 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
514
Eric Smithcc32a112009-04-26 21:35:14 +0000515- Issue #5835: Deprecate PyOS_ascii_formatd.
516
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000517- Issue #4971: Fix titlecase for characters that are their own
518 titlecase, but not their own uppercase.
519
Benjamin Peterson193152c2009-04-25 01:08:45 +0000520- Issue #5283: Setting __class__ in __del__ caused a segfault.
521
Mark Dickinsonad476da2009-04-23 19:14:16 +0000522- Issue #5816: complex(repr(z)) now recovers z exactly, even when
523 z involves nans, infs or negative zeros.
524
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000525- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000526
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000527- Issue #1869 (and many duplicates): make round(x, n) correctly
528 rounded for a float x, by using the decimal <-> binary conversions
529 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
530 consistently agrees with format(x, '.2f').
531
Benjamin Petersonae937c02009-04-18 20:54:08 +0000532- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
533 some builtin types.
534
Eric Smith0923d1d2009-04-16 20:16:10 +0000535- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
536
Eric Smith35e84722009-04-16 20:21:28 +0000537- Issue #5515: str.format() type 'n' combined with commas and leading
538 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000539
540- Implement PEP 378, Format Specifier for Thousands Separator, for
541 floats.
542
Mark Dickinson3370cce2009-04-17 22:40:53 +0000543- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000544 1e11, not 1e12. This avoids printing 13 significant digits in
545 situations where only 12 of them are correct. Example problem
546 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
547 long time.)
548
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000549- Issue #1580: On most platforms, use a 'short' float repr: for a
550 finite float x, repr(x) now outputs a string based on the shortest
551 sequence of decimal digits that rounds to x. Previous behaviour was
552 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000553 Another minor difference is that the new repr switches to
554 exponential notation at 1e16 instead of the previous 1e17; this
555 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000556
557 There's a new sys attribute sys.float_repr_style, which takes
558 the value 'short' to indicate that we're using short float repr,
559 and 'legacy' if the short float repr isn't available for one
560 reason or another.
561
562 The float repr change involves incorporating David Gay's 'perfect
563 rounding' code into the Python core (it's in Python/dtoa.c). As a
564 secondary consequence, all string-to-float and float-to-string
565 conversions (including all float formatting operations) will be
566 correctly rounded on these platforms.
567
568 See issue 1580 discussions for details of platforms for which
569 this change does not apply.
570
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000571- Issue #5759: float() didn't call __float__ on str subclasses.
572
Georg Brandlabc38772009-04-12 15:51:51 +0000573- The string.maketrans() function is deprecated; there is a new static method
574 maketrans() on the bytes and bytearray classes. This removes confusion about
575 the types string.maketrans() is supposed to work with, and mirrors the
576 methods available on the str class.
577
R. David Murraydc6da8a2009-04-09 22:16:43 +0000578- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
579 its clarity and its speed.
580
Matthias Klose091c7b12009-04-07 13:24:27 +0000581- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
582 to avoid compiler warnings.
583
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000584- Issue #3739: The unicode-internal encoder now reports the number of characters
585 consumed like any other encoder (instead of the number of bytes).
586
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000587Installation
588------------
589
590- Issue #5756: Install idle and pydoc with a 3 suffix.
591
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000592Library
593-------
594
Martin v. Löwis403117a2009-05-24 19:19:17 +0000595- Issue #5311: bdist_msi can now build packages that do not depend on a
596 specific Python version.
597
Raymond Hettingereb816952009-05-29 01:22:18 +0000598- Issue #5150: IDLE's format menu now has an option to strip trailing
599 whitespace.
600
Vinay Sajipaffbd872009-06-11 10:11:47 +0000601- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000602 the right type checkings anymore.
603
Thomas Heller00cfc372009-05-05 19:04:40 +0000604- Issue #4875: On win32, ctypes.util.find_library does no longer
605 return directories.
606
Georg Brandl243ad662009-05-05 09:00:19 +0000607- Issue #5142: Add the ability to skip modules while stepping to pdb.
608
Georg Brandl991f9202009-05-05 08:31:54 +0000609- Issue #1309567: Fix linecache behavior of stripping subdirectories when
610 looking for files given by a relative filename.
611
Georg Brandleaa84ef2009-05-05 08:14:33 +0000612- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
613 turtle demos in Demo/turtle.
614
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000615- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
616 extracting a file to the root directory.
617
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000618- Issue #5913: os.listdir() should fail for empty path on windows.
619
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000620- Issue #5084: unpickling now interns the attribute names of pickled objects,
621 saving memory and avoiding growth in size of subsequent pickles. Proposal
622 and original patch by Jake McGuire.
623
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000624- The json module now works exclusively with str and not bytes.
625
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000626- Issue #3959: The ipaddr module has been added to the standard library.
627 Contributed by Google.
628
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000629- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
630 error when a named pipe is encountered, rather than blocking infinitely.
631
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000632- Issue #5857: tokenize.tokenize() now returns named tuples.
633
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000634- Issue #4305: ctypes should now build again on mipsel-linux-gnu
635
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000636- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
637 string is already in normalized form, by performing a quick check beforehand.
638 Original patch by Rauli Ruohonen.
639
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000640- Issue #5853: calling a function of the mimetypes module from several threads
641 at once could hit the recursion limit if the mimetypes database hadn't been
642 initialized before.
643
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000644- Issue #5854: Updated __all__ to include some missing names and remove some
645 names which should not be exported.
646
Thomas Heller34596a92009-04-24 20:50:00 +0000647- Issue #3102: All global symbols that the _ctypes extension defines
648 are now prefixed with 'Py' or '_ctypes'.
649
650- Issue #5041: ctypes does now allow pickling wide character.
651
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000652- Issue #5812: For the two-argument form of the Fraction constructor,
653 Fraction(m, n), m and n are permitted to be arbitrary Rational
654 instances.
655
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000656- Issue #5812: Fraction('1e6') is valid: more generally, any string
657 that's valid for float() is now valid for Fraction(), with the
658 exception of strings representing NaNs and infinities.
659
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000660- Issue #5734: BufferedRWPair was poorly tested and had several glaring
661 bugs. Patch by Brian Quinlan.
662
R. David Murray9e94ddf2009-04-13 17:06:33 +0000663- Issue #1161031: fix readwrite select flag handling: POLLPRI now
664 results in a handle_expt_event call, not handle_read_event, and POLLERR
665 and POLLNVAL now call handle_close, not handle_expt_event. Also,
666 dispatcher now has an 'ignore_log_types' attribute for suppressing
667 log messages, which is set to 'warning' by default.
668
Matthias Klosea3d29e82009-04-07 13:13:10 +0000669- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
670 new arguments introduced in 2.5.
671
Walter Dörwald1b08b302009-04-25 14:13:56 +0000672- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
673 makeunicodedata.py and regenerated the Unicode database (This fixes
674 u'\u1d79'.lower() == '\x00').
675
Matthias Klose535336f2009-04-07 13:49:45 +0000676Extension Modules
677-----------------
678
Benjamin Petersone04b6272009-05-04 22:25:21 +0000679- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
680 pwd.
681
Mark Dickinsonea835e72009-04-19 20:40:33 +0000682- Issue #5463: In struct module, remove deprecated float coercion
683 for integer type codes: struct.pack('L', 0.3) should now raise
684 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
685 The version number has been bumped to 0.3.
686
Matthias Klose535336f2009-04-07 13:49:45 +0000687- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
688 using Berkley-DB.
689
Nick Coghlan47384702009-04-22 16:13:36 +0000690Tests
691-----
692
693- Issue #5354: New test support function import_fresh_module() makes
694 it easy to import both normal and optimised versions of modules.
695 test_heapq and test_warnings have been adjusted to use it, tests for
696 other modules with both C and Python implementations in the stdlib
697 can be adjusted to use it over time.
698
Walter Dörwald4ba80132009-04-25 12:48:43 +0000699- Issue #5837: Certain sequences of calls to set() and unset() for
700 support.EnvironmentVarGuard objects restored the environment variables
701 incorrectly on __exit__.
702
Benjamin Petersonb173f782009-05-05 22:31:58 +0000703C-API
704-----
705
706- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
707
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000708
Benjamin Petersond1735892009-03-07 18:46:21 +0000709What's New in Python 3.1 alpha 2?
710=================================
711
Benjamin Peterson88f14352009-04-04 21:06:52 +0000712*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000713
714Core and Builtins
715-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000716
Eric Smith1e1d7d22009-04-03 22:25:33 +0000717- Implement PEP 378, Format Specifier for Thousands Separator, for
718 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000719
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000720- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
721
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000722- Issue #5499: The 'c' code for argument parsing functions now only accepts a
723 byte, and the 'C' code only accepts a unicode character.
724
Georg Brandl406b3d82009-04-11 21:24:37 +0000725- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
726 when hitting the recursion limit under certain circumstances.
727
Brett Cannon0759dd62009-04-01 18:13:07 +0000728- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
729
Georg Brandlab6f2f62009-03-31 04:16:10 +0000730- Fix a segfault when running test_exceptions with coverage, caused by
731 insufficient checks in accessors of Exception.__context__.
732
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000733- Issue #5604: non-ASCII characters in module name passed to
734 imp.find_module() were converted to UTF-8 while the path is
735 converted to the default filesystem encoding, causing nonsense.
736
Benjamin Peterson09832742009-03-26 17:15:46 +0000737- Issue #5126: str.isprintable() returned False for space characters.
738
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000739- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
740 the end sys.path, for compatibility with the system install of Python.
741
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000742- Issue #4688: Add a heuristic so that tuples and dicts containing only
743 untrackable objects are not tracked by the garbage collector. This can
744 reduce the size of collections and therefore the garbage collection overhead
745 on long-running programs, depending on their particular use of datatypes.
746
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000747- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
748 improve its performance. Long divisions and remainder operations
749 are now between 50% and 150% faster.
750
Mark Dickinsonbd792642009-03-18 20:06:12 +0000751- Issue #4258: Make it possible to use base 2**30 instead of base
752 2**15 for the internal representation of integers, for performance
753 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
754 --enable-big-digits option to configure, which overrides the
755 default. Add sys.int_info structseq to provide information about
756 the internal format.
757
Mark Dickinson081dfee2009-03-18 14:47:41 +0000758- Issue #4474: PyUnicode_FromWideChar now converts characters outside
759 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
760 and sizeof(Py_UNICODE) == 2.
761
Eric Smith8ec90442009-03-14 12:29:34 +0000762- Issue #5237: Allow auto-numbered fields in str.format(). For
763 example: '{} {}'.format(1, 2) == '1 2'.
764
Antoine Pitrou652e7072009-03-13 19:25:20 +0000765- Issue #5392: when a very low recursion limit was set, the interpreter would
766 abort with a fatal error after the recursion limit was hit twice.
767
Matthias Klose042f1332009-04-04 14:32:42 +0000768- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
769 short file names.
770
Benjamin Petersond1735892009-03-07 18:46:21 +0000771Library
772-------
773
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000774- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000775 mailbox.MH.get_message().
776
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000777- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
778 error substitutions from non-strict codec error callbacks in
779 incrementalencoder and StreamWriter.
780
Georg Brandl33c28812009-04-01 23:07:29 +0000781- Issue #5656: Fix the coverage reporting when running the test suite with
782 the -T argument.
783
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000784- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
785
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000786- Issue #5624: Fix the _winreg module name still used in several modules.
787
Benjamin Petersona1b49012009-03-31 23:11:32 +0000788- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
789
Jesse Nollera9314042009-03-31 22:36:44 +0000790- Issue #5619: Multiprocessing children disobey the debug flag and causes
791 popups on windows buildbots. Patch applied to work around this issue.
792
Jesse Noller32d68c22009-03-31 18:48:42 +0000793- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
794
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000795- Issue #5387: Fixed mmap.move crash by integer overflow.
796
Jesse Nollerf8d00852009-03-31 03:25:07 +0000797- Issue #5261: Patch multiprocessing's semaphore.c to support context
798 manager use: "with multiprocessing.Lock()" works now.
799
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000800- Issue #5236: Change time.strptime() to only take strings. Didn't work with
801 bytes already but the failure was non-obvious.
802
Jesse Noller7af4ef82009-03-30 16:47:15 +0000803- Issue #5177: Multiprocessing's SocketListener class now uses
804 socket.SO_REUSEADDR on all connections so that the user no longer needs
805 to wait 120 seconds for the socket to expire.
806
Benjamin Peterson48e24782009-03-29 13:02:52 +0000807- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
808
Antoine Pitrou66994e12009-03-29 00:45:26 +0000809- Issue #1174606: Calling read() without arguments of an unbounded file
810 (typically /dev/zero under Unix) could crash the interpreter.
811
Benjamin Peterson59406a92009-03-26 17:10:29 +0000812- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
813 io.BufferedRandom have been deprecated for removal in Python 3.2.
814
Lars Gustäbel42e00912009-03-22 20:34:29 +0000815- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
816 forever on incomplete input. That caused tarfile.open() to hang when used
817 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
818 partial bzip2 compressed data.
819
Mark Dickinson79f52032009-03-17 23:12:51 +0000820- Issue #2110: Add support for thousands separator and 'n' type
821 specifier to Decimal.__format__
822
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000823- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
824 '>' alignment characters.
825
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000826- The error detection code in FileIO.close() could fail to reflect the `errno`
827 value, and report it as -1 instead.
828
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000829- Issue #5016: FileIO.seekable() could return False if the file position
830 was negative when truncated to a C int. Patch by Victor Stinner.
831
Mark Dickinsonae681df2009-03-21 10:26:31 +0000832Extension Modules
833-----------------
834
Benjamin Petersone099b372009-04-04 17:09:35 +0000835- Issue #5391: mmap now deals exclusively with bytes.
836
Mark Dickinsonae681df2009-03-21 10:26:31 +0000837- Issue #5463: In struct module, remove deprecated overflow wrapping
838 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000839 struct.error instead of returning b'\xff\xff\xff\xff'. The
840 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
841 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000842
Benjamin Petersond1735892009-03-07 18:46:21 +0000843
Benjamin Petersona58a6262009-03-07 16:34:40 +0000844What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000845================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000846
Benjamin Petersona58a6262009-03-07 16:34:40 +0000847*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000848
849Core and Builtins
850-----------------
851
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000852- The io module has been reimplemented in C for speed.
853
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000854- Give dict views an informative __repr__.
855
Eric Smith5e5c0db2009-02-20 14:25:03 +0000856- Issue #5247: Improve error message when unknown format codes are
857 used when using str.format() with str, int, and float arguments.
858
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000859- Issue #5249: time.strftime returned malformed string when format string
860 contained non ascii character on windows.
861
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000862- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
863 source has already been decoded into str.
864
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000865- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
866 rotating the object pointer by 4 bits to the right.
867
Mark Dickinson87ec0852009-02-09 17:15:59 +0000868- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
869 it now forces its argument to double before testing for infinity.
870
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000871- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
872 returns a non-number type.
873
Benjamin Peterson87618552009-02-08 15:00:52 +0000874- Issue #5182: Removed memoryview.__str__.
875
Mark Dickinsonc008a172009-02-01 13:59:22 +0000876- Issue #1717: Removed builtin cmp() function, dropped tp_compare
877 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000878 the type definition cmpfunc. The tp_compare slot has been renamed
879 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000880
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000881- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000882 were suppressing all exceptions. These include list() and bytearray().
883
Mark Dickinson1124e712009-01-28 21:25:58 +0000884- Issue #4707: round(x, n) now returns an integer if x is an integer.
885 Previously it returned a float.
886
Antoine Pitroub52ec782009-01-25 16:34:23 +0000887- Issue #4753: By enabling a configure option named '--with-computed-gotos'
888 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
889 evaluation loop is compiled with a new dispatch mechanism which gives
890 speedups of up to 20%, depending on the system, on various benchmarks.
891
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000892- Issue #4874: Most builtin decoders now reject unicode input.
893
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000894- Issue #4842: Don't allow trailing 'L' when constructing an integer
895 from a string.
896
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000897- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
898
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000899- Issue #4838: When a module is deallocated, free the memory backing the
900 optional module state data.
901
Mark Dickinson8055afd2009-01-17 10:04:45 +0000902- Issue #4910: Rename nb_long slot to nb_reserved, and change its
903 type to (void *).
904
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000905- Issue #4935: The overflow checking code in the expandtabs() method common
906 to str, bytes and bytearray could be optimized away by the compiler, letting
907 the interpreter segfault instead of raising an error.
908
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000909- Issue #3720: Fix a crash when an iterator modifies its class and removes its
910 __next__ method.
911
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000912- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
913 function no longer attempt to call the __long__ slot to convert an object
914 to an integer. Only the __int__ and __trunc__ slots are examined.
915
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000916- Issue #4893: Use NT threading on CE.
917
Martin v. Löwisec59d042009-01-12 07:59:10 +0000918- Issue #4915: Port sysmodule to Windows CE.
919
Antoine Pitrouab868312009-01-10 15:40:25 +0000920- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
921 common cases are optimized thanks to a dedicated fast path and a moderate
922 amount of loop unrolling.
923
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000924- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
925 collecting the oldest generation) so that allocating lots of objects without
926 destroying them does not show quadratic performance. Based on a proposal by
927 Martin von Löwis at
928 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
929
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000930- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000931 having been closed (for instance, a read() call could return some
932 previously buffered data). Patch by Dmitry Vasiliev.
933
Antoine Pitrou05608432009-01-09 18:53:14 +0000934- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
935 flag to work properly. Furthermore, when specifying -u, the text stdout
936 and stderr streams have line-by-line buffering enabled (the default being
937 to buffer arbitrary chunks of data).
938
Raymond Hettinger35631532009-01-09 03:58:09 +0000939- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
940 instead of ints (reducing its size from 4 to 8 times thereby reducing
941 Python's overall memory).
942
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000943- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
944 an existing .py counterpart, override the co_filename attributes of all
945 code objects if the original filename is obsolete (which can happen if the
946 file has been renamed, moved, or if it is accessed through different paths).
947 Patch by Ziga Seilnacht and Jean-Paul Calderone.
948
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000949- Issue #4580: Fix slicing of memoryviews when the item size is greater than
950 one byte. Also fixes the meaning of len() so that it returns the number of
951 items, rather than the size in bytes.
952
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000953- Issue #4075: Use OutputDebugStringW in Py_FatalError.
954
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000955- Issue #4747: When the terminal does not use utf-8, executing a script with
956 non-ascii characters in its name could fail with a "SyntaxError: None" error.
957
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000958- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000959 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000960
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000961- Issue #3680: Reference cycles created through a dict, set or deque iterator
962 did not get collected.
963
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000964- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
965 where the tp_hash and tp_dict slots are both NULL.
966
Georg Brandlccc47b62008-12-28 11:44:14 +0000967- Issue #4759: None is now allowed as the first argument of
968 bytearray.translate(). It was always allowed for bytes.translate().
969
Skip Montanaro80072cb2008-12-23 03:51:14 +0000970- Added test case to ensure attempts to read from a file opened for writing
971 fail.
972
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000973- Issue #3106: Speedup some comparisons (str/str and int/int).
974
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000975- Issue #2183: Simplify and optimize bytecode for list, dict and set
976 comprehensions. Original patch for list comprehensions by Neal Norwitz.
977
Antoine Pitrou621601a2008-12-17 23:18:19 +0000978- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
979 print elapsed times, not only when some objects are uncollectable /
980 unreachable. Original patch by Neil Schemenauer.
981
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000982- Issue #3439: Add a bit_length method to int.
983
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000984- Issue #2173: When getting device encoding, check that return value of
985 nl_langinfo is not the empty string. This was causing silent build
986 failures on OS X.
987
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000988- Issue #4597: Fixed several opcodes that weren't always propagating
989 exceptions.
990
991- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000992 context manager returns a value that cannot be converted to a bool.
993
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000994- Issue #4445: Replace "sizeof(PyBytesObject)" with
995 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
996 bytes instances. On a typical machine this saves 3 bytes of memory
997 (on average) per allocation of a bytes instance.
998
Christian Heimesa872de52008-12-05 08:26:55 +0000999- Issue #4533: File read operation was dreadfully slow due to a slowly
1000 growing read buffer. Fixed by using the same growth rate algorithm as
1001 Python 2.x.
1002
Antoine Pitrou5504e892008-12-06 21:27:53 +00001003- Issue #4509: Various issues surrounding resize of bytearray objects to
1004 which there are buffer exports (e.g. memoryview instances).
1005
Georg Brandlf9734072008-12-07 15:30:06 +00001006- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
1007 method on file objects with closefd=False. The file descriptor is still
1008 kept open but the file object behaves like a closed file. The ``FileIO``
1009 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +00001010
Antoine Pitroubc420402008-12-07 20:14:49 +00001011- Issue #4569: Interpreter crash when mutating a memoryview with an item size
1012 larger than 1.
1013
Benjamin Peterson371ccfb2008-12-27 19:03:36 +00001014- Issue #4748: Lambda generators no longer return a value.
1015
Gregory P. Smithccc5ae72009-03-02 05:21:55 +00001016- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
1017
Walter Dörwaldc1651a02009-05-03 22:55:55 +00001018- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
1019 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
1020 step. This avoids problems with counting UTF-8 bytes that ignores the effect
1021 of using the replace error handler in PyUnicode_DecodeUTF8().
1022
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001023Library
1024-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001025
Tarek Ziadé4a608c02009-08-20 21:28:05 +00001026- Issue #6693: New functions in site.py to get user/global site packages paths.
1027
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +00001028- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
1029 opening an empty or very small file.
1030
1031- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +00001032 behavior is similar when used with -O.
1033
Benjamin Petersonbed7d042009-07-19 21:01:52 +00001034- unittest has been split up into a package. All old names should still work.
1035
Tarek Ziadéf8926b22009-07-16 16:18:19 +00001036- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
1037 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
1038 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
1039 for the obsolete get_versions() functions.
1040
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001041- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
1042
1043- Issue #6314: logging: Extra checks on the "level" argument in more places.
1044
1045- Issue #2622: Fixed an ImportError when importing email.messsage from a
1046 standalone application built with py2exe or py2app.
1047
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001048- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +00001049
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001050- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +00001051 attribute.
1052
Tarek Ziadé05bf01a2009-07-04 02:04:21 +00001053- Issue #6413: Fixed the log level in distutils.dist for announce.
1054
Tarek Ziadée10d6de2009-07-03 08:33:28 +00001055- Issue #6403: Fixed package path usage in build_ext.
1056
Alexandre Vassalottie52e3782009-07-17 09:18:18 +00001057- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
1058 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
1059 descriptor errors
1060
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001061- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +00001062 extension in a subdirectory if the extension name had dots.
1063
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001064- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001065 unixcompiler. Original patch by Sridhar Ratnakumar.
1066
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001067- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1068 httplib, allowing the usage of http_proxy.
1069
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001070- Issue #6287: Added the license field in Distutils documentation.
1071
Tarek Ziadéff543362009-06-11 09:25:41 +00001072- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1073
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001074- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1075 in Makefiles. This prevents compile errors when using syntax like:
1076 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1077
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001078- Issue #6131: test_modulefinder leaked when run after test_distutils.
1079 Patch by Hirokazu Yamamoto.
1080
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001081- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1082
Vinay Sajipaffbd872009-06-11 10:11:47 +00001083- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001084 and tests on pywin32 by Tim Golden.
1085
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001086- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1087
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001088- Issue #6046: Fixed the library extension when distutils build_ext is used
1089 inplace. Initial patch by Roumen Petrov.
1090
Vinay Sajipaffbd872009-06-11 10:11:47 +00001091- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001092 subcommand.
1093
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001094- Issue #6022: a test file was created in the current working directory by
1095 test_get_outputs in Distutils.
1096
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001097- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1098 inplace option. Initial patch by kxroberto.
1099
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001100- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1101 for old-style extensions.
1102
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001103- Issue #5976: Fixed Distutils test_check_environ.
1104
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001105- Issue #5941: Distutils build_clib command was not working anymore because
1106 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1107 Makefile besides AR and make Distutils use it. Original patch by David
1108 Cournapeau.
1109
R. David Murrayb507d2e2009-04-29 15:34:32 +00001110- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1111
Vinay Sajipaffbd872009-06-11 10:11:47 +00001112- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001113 anymore.
1114
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001115- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001116 sysconfig.get_config_vars.
1117
Tarek Ziadé23336082009-04-25 12:39:56 +00001118- Issue #4951: Fixed failure in test_httpservers.
1119
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001120- Issue #5795: Fixed test_distutils failure on Debian ppc.
1121
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001122- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1123
Georg Brandl1f9fa312009-04-27 16:42:58 +00001124- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1125 a value in SafeConfigParser.
1126
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001127- Issue #5732: added a new command in Distutils: check.
1128
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001129- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001130 platforms. Initial patch by Paul Moore.
1131
Tarek Ziadéf6370502009-04-05 22:57:21 +00001132- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1133 Initial fix by Steven Bethard.
1134
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001135- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1136 Initial fix by Wayne Davison.
1137
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001138- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001139
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001140- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001141
Brett Cannonf47e84c2009-04-01 16:06:01 +00001142- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1143 instead of performing them in functions. Helps prevent import deadlocking in
1144 threads.
1145
R. David Murraye59482e2009-04-01 03:42:00 +00001146- Issue #2522: locale.format now checks its first argument to ensure it has
1147 been passed only one pattern, avoiding mysterious errors where it appeared
1148 that it was failing to do localization.
1149
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001150- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1151 Brandl.
1152
Antoine Pitrou350370c2009-03-14 00:13:13 +00001153- Issue #1222: locale.format() bug when the thousands separator is a space
1154 character.
1155
Tarek Ziadé516db942009-03-11 12:52:00 +00001156- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1157 Tim Golden.
1158
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001159- collections.deque() objects now have a read-only attribute called maxlen.
1160
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001161- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1162 it is has been populated and properly configured in order to prevent
1163 window flashing.
1164
Guilherme Polo56f5be52009-03-07 01:54:57 +00001165- Issue #4792: Prevent a segfault in _tkinter by using the
1166 guaranteed to be safe interp argument given to the PythonCmd in place of
1167 the Tcl interpreter taken from a PythonCmd_ClientData.
1168
1169- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1170
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001171- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1172 Original patch by Akira Kitada.
1173
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001174- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1175
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001176- Issue #5385: Fixed mmap crash after resize failure on windows.
1177
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001178- Issue #5179: Fixed subprocess handle leak on failure on windows.
1179
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001180- PEP 372: Added collections.OrderedDict().
1181
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001182- The _asdict() for method for namedtuples now returns an OrderedDict().
1183
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001184- configparser now defaults to using an ordered dictionary.
1185
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001186- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1187 import guess_extension`` was used.
1188
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001189- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1190 with same tagname but larger size than first map. (Windows)
1191
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001192- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1193 overrun.
1194
Tarek Ziadéf0721222009-02-28 10:16:43 +00001195- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1196 bdist_rpm command.
1197
1198- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1199
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001200- Issue #5052: make Distutils compatible with 2.3 again.
1201
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001202- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1203 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001204
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001205- Issue #5287: Add exception handling around findCaller() call to help out
1206 IronPython.
1207
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001208- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1209 The file was resized to wrong size.
1210
1211- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1212
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001213- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001214 from the package_data and the data_files metadata.
1215
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001216- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001217 support.TempdirManager, to avoid writing in the tests directory.
1218
Tarek Ziadé68c50952009-02-13 23:04:17 +00001219- Issue #4524: distutils build_script command failed with --with-suffix=3.
1220 Initial patch by Amaury Forgeot d'Arc.
1221
Tarek Ziadé811d6242009-02-13 22:26:15 +00001222- Issue #2461: added tests for distutils.util
1223
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001224- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1225 which inherited from numbers.py which did not have __slots__ defined. The
1226 numbers hierarchy now has its own __slots__ declarations.
1227
Antoine Pitroub353c122009-02-11 00:39:14 +00001228- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1229 encoding.
1230
Thomas Heller465c8022009-02-10 18:59:04 +00001231- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1232 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1233
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001234- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1235 under NT and OS2. Patch by Philip Jenvey.
1236
Brett Cannonbefb14f2009-02-10 02:10:16 +00001237- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1238 to be recreated. This avoids a timing hole thanks to the old reliance on the
1239 ctime of the files involved.
1240
Guilherme Polob681df42009-02-09 22:33:59 +00001241- Issue #5122: Synchronize tk load failure check to prevent a potential
1242 deadlock.
1243
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001244- Issue #1818: collections.namedtuple() now supports a keyword argument
1245 'rename' which lets invalid fieldnames be automatically converted to
1246 positional names in the form, _1, _2, ...
1247
Guilherme Poloae098992009-02-09 16:44:24 +00001248- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1249
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001250- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1251 public documented method ``ZipImporter.get_filename()``.
1252
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001253- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1254 the execution of packages by looking for and executing a ``__main__``
1255 submodule when a package name is supplied. Initial patch by Andi
1256 Vajda.
1257
Guilherme Polo491aee22009-02-06 23:16:11 +00001258- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1259 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1260 Tkapp_Call when calling from a thread different than the one that created
1261 the Tcl interpreter. Patch by Robert Hancock.
1262
Eric Smith0e5b5622009-02-06 01:32:42 +00001263- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1264 Ross Light.
1265
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001266- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001267 environment/Makefile. Patch by Douglas Greiman.
1268
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001269- Issue #1276768: The verbose option was not used in the code of
1270 distutils.file_util and distutils.dir_util.
1271
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001272- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001273 --enabled-shared activated. Initial patch by Dave Peterson.
1274
Guilherme Polo7f423952009-02-02 21:17:09 +00001275- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1276
Raymond Hettinger85602262009-02-03 04:19:10 +00001277- The shelve module now defaults to pickle protocol 3.
1278
Brett Cannone61426e2009-01-30 01:31:34 +00001279- Fix a bug in the trace module where a bytes object from co_lnotab had its
1280 items being passed through ord().
1281
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001282- Issue #2047: shutil.move() could believe that its destination path was
1283 inside its source path if it began with the same letters (e.g. "src" vs.
1284 "src.new").
1285
Guilherme Polo5f238482009-01-28 14:41:10 +00001286- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1287
Raymond Hettinger89e12962009-01-26 02:09:03 +00001288- Removed isSequenceType(), isMappingType, and isNumberType() from the
1289 operator module; use the abstract base classes instead. Also removed
1290 the repeat() function; use mul() instead.
1291
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001292- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001293 collections.namedtuple() relied on __name__ being defined.
1294
1295- Backport importlib from Python 3.1. Only the import_module() function has
1296 been backported to help facilitate transitions from 2.7 to 3.1.
1297
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001298- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1299 the tar file was overriden by the gztar one.
1300
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001301- Issue #4863: distutils.mwerkscompiler has been removed.
1302
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001303- Added a new itertools functions: combinations_with_replacement()
1304 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001305
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001306- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001307 allowed non-integer arguments.
1308
Jesse Noller41faa542009-01-25 03:45:53 +00001309- Fix and properly document the multiprocessing module's logging
1310 support, expose the internal levels and provide proper usage
1311 examples.
1312
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001313- Issue #1672332: fix unpickling of subnormal floats, which was
1314 producing a ValueError on some platforms.
1315
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001316- Issue #3881: Help Tcl to load even when started through the
1317 unreadable local symlink to "Program Files" on Vista.
1318
Martin v. Löwis59e47792009-01-24 14:10:07 +00001319- Issue #4710: Extract directories properly in the zipfile module;
1320 allow adding directories to a zipfile.
1321
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001322- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001323 --without-threads argument. When this occurs, _multiprocessing will
1324 be disabled, and not compiled.
1325
Antoine Pitrou08838b62009-01-21 00:55:13 +00001326- Issue #5008: When a file is opened in append mode with the new IO library,
1327 do an explicit seek to the end of file (so that e.g. tell() returns the
1328 file size rather than 0). This is consistent with the behaviour of the
1329 traditional 2.x file object.
1330
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001331- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1332 parameter was set.
1333
Mark Dickinson8dd05142009-01-20 20:43:58 +00001334- Issue #4842: Always append a trailing 'L' when pickling longs using
1335 pickle protocol 0. When reading, the 'L' is optional.
1336
Brett Cannonafccd632009-01-20 02:21:27 +00001337- Add the importlib package.
1338
Jesse Noller9a0fc972009-01-18 21:12:58 +00001339- Issue #4301: Patch the logging module to add processName support, remove
1340 _check_logger_class from multiprocessing.
1341
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001342- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001343 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001344
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001345- Issue #4959: inspect.formatargspec now works for keyword only arguments
1346 without defaults.
1347
Jesse Noller6214edd2009-01-19 16:23:53 +00001348- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1349 for *nix machines for negative handles and large int handles. Without this check
1350 it is possible to segfault the interpreter.
1351
Jesse Nollerb0516a62009-01-18 03:11:38 +00001352- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1353 in sharedctypes.py.
1354
1355- Issue #1225107: inspect.isclass() returned True for instances with a custom
1356 __getattr__.
1357
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001358- Issue #3826 and #4791: The socket module now closes the underlying socket
1359 appropriately when it is being used via socket.makefile() objects
1360 rather than delaying the close by waiting for garbage collection to do it.
1361
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001362- Issue #1696199: Add collections.Counter() for rapid and convenient
1363 counting.
1364
Antoine Pitrou308705e2009-01-10 16:22:51 +00001365- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1366
Thomas Heller5e4e4272009-01-08 09:34:20 +00001367- Issue #4867: Fixed a crash in ctypes when passing a string to a
1368 function without defining argtypes.
1369
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001370- Issue #4272: Add an optional argument to the GzipFile constructor to override
1371 the timestamp in the gzip stream. The default value remains the current time.
1372 The information can be used by e.g. gunzip when decompressing. Patch by
1373 Jacques Frechet.
1374
Mark Dickinson315a20a2009-01-04 21:34:18 +00001375- Restore Python 2.3 compatibility for decimal.py.
1376
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001377- Issue #3638: Remove functions from _tkinter module level that depend on
1378 TkappObject to work with multiple threads.
1379
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001380- Issue #4718: Adapt the wsgiref package so that it actually works with
1381 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001382 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1383
Raymond Hettinger771ed762009-01-03 19:20:32 +00001384- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1385 to the decimal module.
1386
Georg Brandl3a9b0622009-01-03 22:07:57 +00001387- Fractions.from_float() no longer loses precision for integers too big to
1388 cast as floats.
1389
Mark Dickinsonf9236412009-01-02 23:23:21 +00001390- Issue #4812: add missing underscore prefix to some internal-use-only
1391 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1392
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001393- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001394 did unnecessary work in the common case where no key function was specified.
1395
Georg Brandlb1441c72009-01-03 22:33:39 +00001396- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1397 the function is not a generator.
1398
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001399- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1400 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001401
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001402- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001403 function. Original patch by Thomas Heller.
1404
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001405- Issue #3767: Convert Tk object to string in tkColorChooser.
1406
Martin v. Löwise354d782008-12-29 16:03:04 +00001407- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1408
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001409- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1410 the code under test can be written inline if more practical.
1411
Georg Brandldb7b6b92009-01-01 15:53:14 +00001412- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1413 works as expected in the interactive environment.
1414
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001415- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1416 Gabriel Genellina.
1417
Antoine Pitrou180a3362008-12-14 16:36:46 +00001418- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1419 boundary.
1420
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001421- Issue #4223: inspect.getsource() will now correctly display source code
1422 for packages loaded via zipimport (or any other conformant PEP 302
1423 loader). Original patch by Alexander Belopolsky.
1424
1425- Issue #4201: pdb can now access and display source code loaded via
1426 zipimport (or any other conformant PEP 302 loader). Original patch by
1427 Alexander Belopolsky.
1428
1429- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1430 302 conformant loader) will now work correctly in most cases (they
1431 are still subject to the constraints that exist for all code running
1432 from inside a module loaded via a PEP 302 loader and attempting to
1433 perform IO operations based on __file__). Original patch by
1434 Alexander Belopolsky.
1435
1436- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1437 allows backporting to maintenance branches. Original patch by
1438 Alexander Belopolsky.
1439
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001440- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1441 a non-ASCII letter.
1442
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001443- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1444
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001445- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1446 codec cannot be found. This is for compatibility with the builtin behavior.
1447
Facundo Batista708d5812008-12-11 04:20:07 +00001448- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1449 give correct results in the case where one argument is a quiet NaN
1450 and the other is a finite number that requires rounding.
1451
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001452- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1453 libs.
1454
Georg Brandlf9734072008-12-07 15:30:06 +00001455- Added the subprocess.check_call_output() convenience function to get output
1456 from a subprocess on success or raise an exception on error.
1457
1458- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1459 support unusual filenames (such as those containing semi-colons) in
1460 Content-Disposition headers.
1461
1462- Issue #4384: Added logging integration with warnings module using
1463 captureWarnings(). This change includes a NullHandler which does nothing;
1464 it will be of use to library developers who want to avoid the "No handlers
1465 could be found for logger XXX" message which can appear if the library user
1466 doesn't configure logging.
1467
1468- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1469 exception.
1470
Georg Brandleee31162008-12-07 15:15:22 +00001471- Issue #4529: fix the parser module's validation of try-except-finally
1472 statements.
1473
1474- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1475 not a malformed option.
1476
1477- Added the subprocess.check_output() convenience function to get output
1478 from a subprocess on success or raise an exception on error.
1479
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001480- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1481 the corresponding tests now pass.
1482
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001483- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1484 it was calling the wrong open() function.
1485
Fred Drake9a0a65b2008-12-04 19:24:50 +00001486- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1487 support unusual filenames (such as those containing semi-colons) in
1488 Content-Disposition headers.
1489
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001490- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1491 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1492
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001493- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1494 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1495 and getservbyport().
1496
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001497- Windows locale mapping updated to Vista.
1498
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001499Tools/Demos
1500-----------
1501
Antoine Pitrou8a681222009-02-07 17:13:31 +00001502- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1503 and make it 2.6-compatible.
1504
Guilherme Poloa7d27972009-01-28 16:06:51 +00001505- Ttk demos added in Demo/tkinter/ttk/
1506
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001507- Issue #4677: add two list comprehension tests to pybench.
1508
Georg Brandlb1441c72009-01-03 22:33:39 +00001509
1510Build
1511-----
1512
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001513- Issue #6094: Build correctly with Subversion 1.7.
1514
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001515- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1516
Antoine Pitrou8966c992009-05-01 21:18:27 +00001517- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1518 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1519
Matthias Klose55708cc2009-04-30 08:06:49 +00001520- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001521 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001522
Matthias Klose906785c2009-02-22 23:18:38 +00001523- Link the shared python library with $(MODLIBS).
1524
Martin v. Löwis11f72102009-02-10 13:13:30 +00001525- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1526
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001527- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1528
Martin v. Löwise97637d2009-01-11 09:45:11 +00001529- Issue #4895: Use _strdup on Windows CE.
1530
Georg Brandlb1441c72009-01-03 22:33:39 +00001531- Issue #4472: "configure --enable-shared" now works on OSX
1532
1533- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1534
1535- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1536
1537- Issue #4289: Remove Cancel button from AdvancedDlg.
1538
1539- Issue #1656675: Register a drop handler for .py* files on Windows.
1540
1541- Issue #4120: Exclude manifest from extension modules in VS2008.
1542
1543- Issue #4091: Install pythonxy.dll in system32 again.
1544
1545- Issue #4018: Disable "for me" installations on Vista.
1546
1547- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1548
1549- Issue #4204: Fixed module build errors on FreeBSD 4.
1550
1551
1552C-API
1553-----
1554
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001555- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1556 NUL: Bogus TypeError detail string.
1557
Mark Dickinson21776072009-02-10 16:13:25 +00001558- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1559 for negative arguments. Previously, it raised TypeError.
1560
Georg Brandlb1441c72009-01-03 22:33:39 +00001561- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1562
1563- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1564 the GIL is released, or owned by another thread.
1565
1566- Issue #4122: On Windows, fix a compilation error when using the
1567 Py_UNICODE_ISSPACE macro in an extension module.
1568
1569
Mark Dickinsone675f082008-12-11 21:56:00 +00001570Extension Modules
1571-----------------
1572
Gregory P. Smith365a1862009-02-12 07:35:29 +00001573- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1574 supporting objects as input no matter how it was compiled (built in
1575 implementations or external openssl library).
1576
Mark Dickinson29500f62009-01-15 15:36:10 +00001577- Issue #4397: Fix occasional test_socket failure on OS X.
1578
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001579- Issue #4279: Fix build of parsermodule under Cygwin.
1580
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001581- Issue #4751: hashlib now releases the GIL when hashing large buffers
1582 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1583 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1584
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001585- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1586
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001587- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1588 or decompress several streams at once on multi-CPU systems. Also, the GIL
1589 is now released when computing the CRC of a large buffer. Patch by ebfe.
1590
Georg Brandlb1441c72009-01-03 22:33:39 +00001591- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1592
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001593- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1594
Mark Dickinsone675f082008-12-11 21:56:00 +00001595- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1596 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001597
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001598- Issue #4583: array.array would not always prohibit resizing when a buffer
1599 has been exported, resulting in an interpreter crash when accessing the
1600 buffer.
1601
Martin v. Löwis841edad2008-11-30 10:36:49 +00001602
Jack Diederiche0cbd692009-04-01 04:27:09 +00001603- Issue #5228: Make functools.partial objects can now be pickled.
1604
Guilherme Polo9de29af2009-01-28 20:40:48 +00001605Tests
1606-----
1607
Antoine Pitrou88909542009-06-29 13:54:42 +00001608- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1609 regression tests in parallel, shortening the total runtime.
1610
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001611- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1612 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1613 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1614 skip the tests if DISPLAY is defined but can't be used.
1615
R. David Murraya21e4ca2009-03-31 23:16:50 +00001616- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001617 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001618 from test support, which does the conversion.
1619
Guilherme Polo9de29af2009-01-28 20:40:48 +00001620- Issue #5083: New 'gui' resource for regrtest.
1621
1622
Brett Cannon7317c1e2008-11-25 19:19:17 +00001623Docs
1624----
1625
Georg Brandl52b92cc2008-05-25 09:43:03 +00001626
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001627**(For information about older versions, consult the HISTORY file.)**