blob: 83aabb3afccf5d50398dbe1766b550a8d0a69c26 [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
Georg Brandl953152f2009-07-22 12:03:59 +000015- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
16
Raymond Hettingere805ecc2009-07-27 20:16:37 +000017- Issue #6573: set.union() stopped processing inputs if an instance of self
18 occurred in the argument chain.
19
R. David Murray046f7232009-07-19 02:22:05 +000020- Issue #6070: On posix platforms import no longer copies the execute bit
21 from the .py file to the .pyc file if it is set.
22
Amaury Forgeot d'Arc8b84ea02009-07-13 20:38:21 +000023- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
24
Amaury Forgeot d'Arc097cd072009-07-07 00:43:08 +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
Benjamin Petersonf1664ae2009-07-01 01:28:55 +000029- The deprecated PyCObject has been removed.
30
Mark Dickinson835a6c82009-06-30 15:45:17 +000031- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h.
32 This fixes a build failure on HP-UX: int32_t and uint32_t are
33 defined in inttypes.h instead of stdint.h on that platform.
34
Amaury Forgeot d'Arca4aba662009-07-01 00:48:39 +000035- Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and
Amaury Forgeot d'Arc84ec8d92009-06-29 22:36:49 +000036 the 'surrogateescape' error handler, a string which contains unpaired
37 surrogates.
38
Hirokazu Yamamoto892a37a2009-06-28 11:07:03 +000039- Issue #4856: Remove checks for win NT.
40
Benjamin Peterson466a7822009-07-02 21:44:01 +000041C-API
42-----
43
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000044- Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD
45 in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be
46 should used for accessing the d_type and d_name members of structures
47 using PyDescr_COMMON.
48
49- Issue #6405: Remove duplicate type declarations in descrobject.h.
Benjamin Peterson89b89172009-07-03 13:30:25 +000050
Benjamin Peterson466a7822009-07-02 21:44:01 +000051- The code flags for old __future__ features are now available again.
52
Alexandre Vassalotti7b82b402009-07-21 04:30:03 +000053- Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of
54 PyCode_Addr2Line().
55
56- Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code
57 object at a specified file, function, and line number.
58
59- Issue #1419652: Change the first argument to PyImport_AppendInittab() to
60 ``const char *`` as the string is stored beyond the call.
61
Alexandre Vassalotti2db046d2009-07-22 03:56:36 +000062
Benjamin Peterson46ea4f72009-06-27 21:40:27 +000063Library
64-------
65
Jack Diederich36596a32009-07-26 22:23:04 +000066- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
67 DO/DONT correctly.
68
Senthil Kumaran67305382009-07-26 04:46:00 +000069- Issue #1424152: Fix for http.client, urllib.request to support SSL while
70 working through proxy. Original patch by Christopher Li, changes made by
71 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +000072
Brett Cannon69194272009-07-20 04:23:48 +000073- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
74 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
75 and PyPycLoader inherit from this class and provide implementations in
76 relation to other methods required by the ABCs.
77
Brett Cannon64ef00f2009-07-20 03:19:18 +000078- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
79 the documentation said it did even though the code in PyLoader relied on the
80 abstract method required by ResourceLoader.
81
Mark Dickinson85424c92009-07-18 14:41:42 +000082- Issue #6431: Make Fraction type return NotImplemented when it doesn't
83 know how to handle a comparison without loss of precision. Also add
84 correct handling of infinities and nans for comparisons with float.
85
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +000086- Issue #6415: Fixed warnings.warn sagfault on bad formatted string.
87
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +000088- Issue #6358: The exit status of a command started with os.popen() was
89 reported differently than it did with python 2.x.
90
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +000091- Issue #6323: The pdb debugger did not exit when running a script with a
92 syntax error.
93
Gregory P. Smithd06fa472009-07-04 02:46:54 +000094- Issue #3392: The subprocess communicate() method no longer fails in select()
95 when file descriptors are large; communicate() now uses poll() when possible.
96
Antoine Pitrou54923952009-07-01 14:53:06 +000097- Issue #6369: Fix an RLE decompression bug in the binhex module.
98
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +000099- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
100
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000101- The deprecated function string.maketrans has been removed.
102
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000103- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
104 sys.path.
105
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000106- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
107
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000108Extension Modules
109-----------------
110
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000111- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000112 failing due to the resize restriction in-place when the object has exported
113 buffers.
114
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000115- Issue #2389: Array objects are now pickled in a portable manner.
116
Martin v. Löwis95c46012009-06-28 09:36:14 +0000117Build
118-----
119
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000120- Issue 4601: 'make install' did not set the appropriate permissions on
121 directories.
122
Martin v. Löwis95c46012009-06-28 09:36:14 +0000123- Issue 5390: Add uninstall icon independent of whether file
124 extensions are installed.
125
Brett Cannonb49c70c2009-07-15 04:08:33 +0000126Tests
127-----
128
Brett Cannon3c273842009-07-20 00:14:29 +0000129- Fixed tests in importlib.test.source.test_abc_loader that were masking
130 the proper exceptions that should be raised for missing or improper code
131 object bytecode.
132
Brett Cannonb49c70c2009-07-15 04:08:33 +0000133- Removed importlib's custom test discovery code and switched to
134 unittest.TestLoader.discover().
135
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000136
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000137What's New in Python 3.1?
138=========================
139
140*Release date: 27-June-2009*
141
142Core and Builtins
143-----------------
144
Mark Dickinsonad195562009-06-24 19:01:32 +0000145- Issue #6334: Fix bug in range length calculation for ranges with
146 large arguments.
147
Raymond Hettinger159eac92009-06-23 20:38:54 +0000148- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
149 because it wasn't recognized as a sequence).
150
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000151Library
152-------
153
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000154- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000155
Facundo Batista10706e22009-06-19 20:34:30 +0000156- Issue #6274: Fixed possible file descriptors leak in subprocess.py
157
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000158- Accessing io.StringIO.buffer now raises an AttributeError instead of
159 io.UnsupportedOperation.
160
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000161- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000162 (On Unix)
163
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000164- Issue #1202: zipfile module would cause a struct.error when attempting to
165 store files with a CRC32 > 2**31-1.
166
Matthias Kloseab2b7552009-06-22 13:05:52 +0000167Extension Modules
168-----------------
169
170- Issue #5590: Remove unused global variable in pyexpat extension.
171
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000172
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000173What's New in Python 3.1 Release Candidate 2?
174=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000175
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000176*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000177
178Core and Builtins
179-----------------
180
Raymond Hettinger94f55832009-06-12 18:40:16 +0000181- Fixed SystemError triggered by "range([], 1, -1)".
182
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000183- Issue #5924: On Windows, a large PYTHONPATH environment variable
184 (more than 255 characters) would be completely ignored.
185
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000186- Issue #4547: When debugging a very large function, it was not always
187 possible to update the lineno attribute of the current frame.
188
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000189- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000190 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000191
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000192Library
193-------
194
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000195- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000196 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000197 Popen. Tested under win32 to build the py-postgresql project.
198
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000199- Issue #6258: Support AMD64 in bdist_msi.
200
R. David Murray58641de2009-06-12 15:33:19 +0000201- Issue #6195: fixed doctest to no longer try to read 'source' data from
202 binary files.
203
Vinay Sajipaffbd872009-06-11 10:11:47 +0000204- Issue #5262: Fixed bug in next rollover time computation in
205 TimedRotatingFileHandler.
206
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000207- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
208 errors property. Additionally, the errors and encoding properties of StringIO
209 are always None now.
210
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000211- Issue #6137: The pickle module now translates module names when loading
212 or dumping pickles with a 2.x-compatible protocol, in order to make data
213 sharing and migration easier. This behaviour can be disabled using the
214 new `fix_imports` optional argument.
215
Raymond Hettinger40925d22009-06-04 18:32:39 +0000216- Removed the ipaddr module.
217
Georg Brandlb54d8012009-06-04 09:11:51 +0000218- Issue #3613: base64.{encode,decode}string are now called
219 base64.{encode,decode}bytes which reflects what type they accept and return.
220 The old names are still there as deprecated aliases.
221
Georg Brandl317185a2009-06-04 09:00:56 +0000222- Issue #5767: Remove sgmlop support from xmlrpc.client.
223
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000224- Issue #6150: Fix test_unicode on wide-unicode builds.
225
Antoine Pitrouc06de472009-05-30 21:04:26 +0000226- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
227 parameters.
228
Martin v. Löwis79b13872009-06-01 04:13:14 +0000229Windows
230-------
231
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000232- Issue #6221: Delete test registry key before running the test.
233
Martin v. Löwis79b13872009-06-01 04:13:14 +0000234- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
235
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000236C-API
237-----
238
239- Issue #5735: Python compiled with --with-pydebug should throw an
240 ImportError when trying to import modules compiled without
241 --with-pydebug, and vice-versa.
242
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000243
Brett Cannonc6d936e2009-06-07 20:09:53 +0000244Build
245-----
246
247- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
248 added LIBS to OS X framework builds.
249
Ronald Oussoren99aab652009-06-08 21:22:57 +0000250- Issue #5809: Specifying both --enable-framework and --enable-shared is
251 an error. Configure now explicity tells you about this.
252
253
Brett Cannonc6d936e2009-06-07 20:09:53 +0000254
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000255What's New in Python 3.1 release candidate 1?
256=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000257
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000258*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000259
260Core and Builtins
261-----------------
262
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000263- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
264 of the command line.
265
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000266- Issue #6012: Add cleanup support to O& argument parsing.
267
Eric Smith41669ca2009-05-23 14:23:22 +0000268- Issue #6089: Fixed str.format with certain invalid field specifiers
269 that would raise SystemError.
270
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000271- Issue #5982: staticmethod and classmethod now expose the wrapped
272 function with __func__.
273
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000274- Added support for multiple context managers in the same with-statement.
275 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000276
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000277- Issue #5829: complex("1e500") no longer raises OverflowError. This
278 makes it consistent with float("1e500") and interpretation of real
279 and imaginary literals.
280
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000281- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
282
R. David Murraydd226ea2009-05-13 12:27:21 +0000283- Issue #5994: the marshal module now has docstrings.
284
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000285- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
286 (1) inf and nan strings with trailing whitespace were incorrectly
287 rejected; (2) parsing of strings representing infinities and nans
288 was locale aware; and (3) the interpretation of fromhex('-nan')
289 didn't match that of float('-nan').
290
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000291Library
292-------
293
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000294- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
295
R. David Murrayfb123912009-05-28 18:19:00 +0000296- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
297
R. David Murray1f1b9d32009-05-27 20:56:59 +0000298- Issue #6121: pydoc now ignores leading and trailing spaces in the
299 argument to the 'help' function.
300
Georg Brandlfaf41492009-05-26 18:31:11 +0000301- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
302 arguments for strings with a space in them.
303
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000304- collections.namedtuple() was not working with the following field
305 names: cls, self, tuple, itemgetter, and property.
306
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000307- In unittest, using a skipping decorator on a class is now equivalent to
308 skipping every test on the class. The ClassTestSuite class has been removed.
309
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000310- Issue #6050: Don't fail extracting a directory from a zipfile if
311 the directory already exists.
312
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000313- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
314 than an int, which makes some operations possible under 64-bit Linux (e.g.
315 DN_MULTISHOT with F_NOTIFY).
316
Antoine Pitrou716c4442009-05-23 19:04:03 +0000317- Issue #5761: Add the name of the underlying file to the repr() of various
318 IO objects.
319
R. David Murraycaa27b72009-05-23 18:49:56 +0000320- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
321 by Musashi Tamura, tests by Marcin Bachry.
322
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000323- Issue #1983: Fix functions taking or returning a process identifier to use
324 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
325 a process identifier type wider than the standard C integer type.
326
R. David Murray87e20742009-05-23 01:30:26 +0000327- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
328 Patch by Farhan Ahmad, test by Marcin Bachry.
329
Antoine Pitrou6e610062009-05-15 17:04:50 +0000330- Issue #2116: Weak references and weak dictionaries now support copy()ing and
331 deepcopy()ing.
332
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000333- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
334
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000335- Issue #5918: Fix a crash in the parser module.
336
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000337- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
338
Antoine Pitroue4501852009-05-14 18:55:55 +0000339- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
340 library. This means, for example, that opening an UTF-16 text file in
341 append mode doesn't add a BOM at the end of the file if the file isn't
342 empty.
343
R. David Murray74b89242009-05-13 17:33:03 +0000344- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
345 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
346 corrects a pydoc regression.
347
R. David Murray99352742009-05-07 18:24:38 +0000348- Issue 5955: aifc's close method did not close the file it wrapped,
349 now it does. This also means getfp method now returns the real fp.
350
Benjamin Peterson932073a2009-05-23 16:14:33 +0000351Installation
352------------
353
354- Issue #6047: fullinstall has been removed because Python 3's executable will
355 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000356
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000357- Lib/smtpd.py is no longer installed as a script.
358
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000359Extension Modules
360-----------------
361
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000362- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000363
Martin v. Löwise23c8682009-05-29 16:01:34 +0000364- Issue #4873: Fix resource leaks in error cases of pwd and grp.
365
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000366- Issue #6093: Fix off-by-one error in locale.strxfrm.
367
Benjamin Peterson744af442009-05-23 18:51:49 +0000368- The _functools and _locale modules are now built into the libpython shared
369 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000370
Antoine Pitrou20327222009-05-24 20:39:11 +0000371Build
372-----
373
374- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
375 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
376 Clinton Roy.
377
Brett Cannon1262e7c2009-05-11 01:47:11 +0000378Tests
379-----
380
381- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
382 tests on darwin even when the OS was installed on a case-sensitive
383 filesystem. Also fixed tests that should not be run when
384 sys.dont_write_bytecode is true.
385
386
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000387What's New in Python 3.1 beta 1?
388================================
389
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000390*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000391
392Core and Builtins
393-----------------
394
Mark Dickinson865e01a2009-05-07 16:37:01 +0000395- Issue #5914: Add new C API function PyOS_string_to_double, and
396 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
397
Eric Smith741191f2009-05-06 13:08:15 +0000398- Issue #3382: float.__format__, complex.__format__, and %-formatting
399 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
400 affects nan -> NAN and inf -> INF.
401
Mark Hammond5a607a32009-05-06 08:04:54 +0000402- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
403 in all operations, including splitdrive, split, etc. splitunc() now issues
404 a PendingDeprecation warning.
405
Eric Smith63376222009-05-05 14:04:18 +0000406- Issue #5920: For float.__format__, change the behavior with the
407 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
408 to be like 'g' but with at least one decimal point and with a
409 default precision of 12. Previously, the behavior the same but with
410 a default precision of 6. This more closely matches str(), and
411 reduces surprises when adding alignment flags to the empty
412 presentation type. This also affects the new complex.__format__ in
413 the same way.
414
Martin v. Löwis011e8422009-05-05 04:43:17 +0000415- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
416
R. David Murrayb18500d2009-05-04 22:59:07 +0000417- Issue #5890: in subclasses of 'property' the __doc__ attribute was
418 shadowed by classtype's, even if it was None. property now
419 inserts the __doc__ into the subclass instance __dict__.
420
Antoine Pitrou244651a2009-05-04 18:56:13 +0000421- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
422 sequences. Patch by Nick Barnes and Victor Stinner.
423
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000424- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000425
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000426- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
427 received a new method, detach(). detach() disconnects the underlying stream
428 from the buffer or text IO and returns it.
429
Mark Dickinson33841c32009-05-01 15:37:04 +0000430- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
431 floats with absolute value over 1e50. Also remove length
432 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
433 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000434
Eric Smith741191f2009-05-06 13:08:15 +0000435- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000436 format(complex(1, 2./3), '.5') now produces a sensible result.
437
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000438- Issue #5864: Fix empty format code formatting for floats so that it
439 never gives more than the requested number of significant digits.
440
Eric Smith6dc46f52009-04-27 20:39:49 +0000441- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
442 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
443
Eric Smithcc32a112009-04-26 21:35:14 +0000444- Issue #5835: Deprecate PyOS_ascii_formatd.
445
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000446- Issue #4971: Fix titlecase for characters that are their own
447 titlecase, but not their own uppercase.
448
Benjamin Peterson193152c2009-04-25 01:08:45 +0000449- Issue #5283: Setting __class__ in __del__ caused a segfault.
450
Mark Dickinsonad476da2009-04-23 19:14:16 +0000451- Issue #5816: complex(repr(z)) now recovers z exactly, even when
452 z involves nans, infs or negative zeros.
453
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000454- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000455
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000456- Issue #1869 (and many duplicates): make round(x, n) correctly
457 rounded for a float x, by using the decimal <-> binary conversions
458 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
459 consistently agrees with format(x, '.2f').
460
Benjamin Petersonae937c02009-04-18 20:54:08 +0000461- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
462 some builtin types.
463
Eric Smith0923d1d2009-04-16 20:16:10 +0000464- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
465
Eric Smith35e84722009-04-16 20:21:28 +0000466- Issue #5515: str.format() type 'n' combined with commas and leading
467 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000468
469- Implement PEP 378, Format Specifier for Thousands Separator, for
470 floats.
471
Mark Dickinson3370cce2009-04-17 22:40:53 +0000472- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000473 1e11, not 1e12. This avoids printing 13 significant digits in
474 situations where only 12 of them are correct. Example problem
475 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
476 long time.)
477
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000478- Issue #1580: On most platforms, use a 'short' float repr: for a
479 finite float x, repr(x) now outputs a string based on the shortest
480 sequence of decimal digits that rounds to x. Previous behaviour was
481 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000482 Another minor difference is that the new repr switches to
483 exponential notation at 1e16 instead of the previous 1e17; this
484 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000485
486 There's a new sys attribute sys.float_repr_style, which takes
487 the value 'short' to indicate that we're using short float repr,
488 and 'legacy' if the short float repr isn't available for one
489 reason or another.
490
491 The float repr change involves incorporating David Gay's 'perfect
492 rounding' code into the Python core (it's in Python/dtoa.c). As a
493 secondary consequence, all string-to-float and float-to-string
494 conversions (including all float formatting operations) will be
495 correctly rounded on these platforms.
496
497 See issue 1580 discussions for details of platforms for which
498 this change does not apply.
499
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000500- Issue #5759: float() didn't call __float__ on str subclasses.
501
Georg Brandlabc38772009-04-12 15:51:51 +0000502- The string.maketrans() function is deprecated; there is a new static method
503 maketrans() on the bytes and bytearray classes. This removes confusion about
504 the types string.maketrans() is supposed to work with, and mirrors the
505 methods available on the str class.
506
R. David Murraydc6da8a2009-04-09 22:16:43 +0000507- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
508 its clarity and its speed.
509
Matthias Klose091c7b12009-04-07 13:24:27 +0000510- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
511 to avoid compiler warnings.
512
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000513- Issue #3739: The unicode-internal encoder now reports the number of characters
514 consumed like any other encoder (instead of the number of bytes).
515
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000516Installation
517------------
518
519- Issue #5756: Install idle and pydoc with a 3 suffix.
520
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000521Library
522-------
523
Martin v. Löwis403117a2009-05-24 19:19:17 +0000524- Issue #5311: bdist_msi can now build packages that do not depend on a
525 specific Python version.
526
Raymond Hettingereb816952009-05-29 01:22:18 +0000527- Issue #5150: IDLE's format menu now has an option to strip trailing
528 whitespace.
529
Vinay Sajipaffbd872009-06-11 10:11:47 +0000530- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000531 the right type checkings anymore.
532
Thomas Heller00cfc372009-05-05 19:04:40 +0000533- Issue #4875: On win32, ctypes.util.find_library does no longer
534 return directories.
535
Georg Brandl243ad662009-05-05 09:00:19 +0000536- Issue #5142: Add the ability to skip modules while stepping to pdb.
537
Georg Brandl991f9202009-05-05 08:31:54 +0000538- Issue #1309567: Fix linecache behavior of stripping subdirectories when
539 looking for files given by a relative filename.
540
Georg Brandleaa84ef2009-05-05 08:14:33 +0000541- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
542 turtle demos in Demo/turtle.
543
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000544- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
545 extracting a file to the root directory.
546
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000547- Issue #5913: os.listdir() should fail for empty path on windows.
548
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000549- Issue #5084: unpickling now interns the attribute names of pickled objects,
550 saving memory and avoiding growth in size of subsequent pickles. Proposal
551 and original patch by Jake McGuire.
552
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000553- The json module now works exclusively with str and not bytes.
554
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000555- Issue #3959: The ipaddr module has been added to the standard library.
556 Contributed by Google.
557
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000558- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
559 error when a named pipe is encountered, rather than blocking infinitely.
560
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000561- Issue #5857: tokenize.tokenize() now returns named tuples.
562
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000563- Issue #4305: ctypes should now build again on mipsel-linux-gnu
564
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000565- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
566 string is already in normalized form, by performing a quick check beforehand.
567 Original patch by Rauli Ruohonen.
568
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000569- Issue #5853: calling a function of the mimetypes module from several threads
570 at once could hit the recursion limit if the mimetypes database hadn't been
571 initialized before.
572
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000573- Issue #5854: Updated __all__ to include some missing names and remove some
574 names which should not be exported.
575
Thomas Heller34596a92009-04-24 20:50:00 +0000576- Issue #3102: All global symbols that the _ctypes extension defines
577 are now prefixed with 'Py' or '_ctypes'.
578
579- Issue #5041: ctypes does now allow pickling wide character.
580
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000581- Issue #5812: For the two-argument form of the Fraction constructor,
582 Fraction(m, n), m and n are permitted to be arbitrary Rational
583 instances.
584
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000585- Issue #5812: Fraction('1e6') is valid: more generally, any string
586 that's valid for float() is now valid for Fraction(), with the
587 exception of strings representing NaNs and infinities.
588
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000589- Issue #5734: BufferedRWPair was poorly tested and had several glaring
590 bugs. Patch by Brian Quinlan.
591
R. David Murray9e94ddf2009-04-13 17:06:33 +0000592- Issue #1161031: fix readwrite select flag handling: POLLPRI now
593 results in a handle_expt_event call, not handle_read_event, and POLLERR
594 and POLLNVAL now call handle_close, not handle_expt_event. Also,
595 dispatcher now has an 'ignore_log_types' attribute for suppressing
596 log messages, which is set to 'warning' by default.
597
Matthias Klosea3d29e82009-04-07 13:13:10 +0000598- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
599 new arguments introduced in 2.5.
600
Walter Dörwald1b08b302009-04-25 14:13:56 +0000601- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
602 makeunicodedata.py and regenerated the Unicode database (This fixes
603 u'\u1d79'.lower() == '\x00').
604
Matthias Klose535336f2009-04-07 13:49:45 +0000605Extension Modules
606-----------------
607
Benjamin Petersone04b6272009-05-04 22:25:21 +0000608- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
609 pwd.
610
Mark Dickinsonea835e72009-04-19 20:40:33 +0000611- Issue #5463: In struct module, remove deprecated float coercion
612 for integer type codes: struct.pack('L', 0.3) should now raise
613 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
614 The version number has been bumped to 0.3.
615
Matthias Klose535336f2009-04-07 13:49:45 +0000616- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
617 using Berkley-DB.
618
Nick Coghlan47384702009-04-22 16:13:36 +0000619Tests
620-----
621
622- Issue #5354: New test support function import_fresh_module() makes
623 it easy to import both normal and optimised versions of modules.
624 test_heapq and test_warnings have been adjusted to use it, tests for
625 other modules with both C and Python implementations in the stdlib
626 can be adjusted to use it over time.
627
Walter Dörwald4ba80132009-04-25 12:48:43 +0000628- Issue #5837: Certain sequences of calls to set() and unset() for
629 support.EnvironmentVarGuard objects restored the environment variables
630 incorrectly on __exit__.
631
Benjamin Petersonb173f782009-05-05 22:31:58 +0000632C-API
633-----
634
635- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
636
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000637
Benjamin Petersond1735892009-03-07 18:46:21 +0000638What's New in Python 3.1 alpha 2?
639=================================
640
Benjamin Peterson88f14352009-04-04 21:06:52 +0000641*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000642
643Core and Builtins
644-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000645
Eric Smith1e1d7d22009-04-03 22:25:33 +0000646- Implement PEP 378, Format Specifier for Thousands Separator, for
647 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000648
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000649- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
650
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000651- Issue #5499: The 'c' code for argument parsing functions now only accepts a
652 byte, and the 'C' code only accepts a unicode character.
653
Georg Brandl406b3d82009-04-11 21:24:37 +0000654- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
655 when hitting the recursion limit under certain circumstances.
656
Brett Cannon0759dd62009-04-01 18:13:07 +0000657- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
658
Georg Brandlab6f2f62009-03-31 04:16:10 +0000659- Fix a segfault when running test_exceptions with coverage, caused by
660 insufficient checks in accessors of Exception.__context__.
661
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000662- Issue #5604: non-ASCII characters in module name passed to
663 imp.find_module() were converted to UTF-8 while the path is
664 converted to the default filesystem encoding, causing nonsense.
665
Benjamin Peterson09832742009-03-26 17:15:46 +0000666- Issue #5126: str.isprintable() returned False for space characters.
667
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000668- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
669 the end sys.path, for compatibility with the system install of Python.
670
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000671- Issue #4688: Add a heuristic so that tuples and dicts containing only
672 untrackable objects are not tracked by the garbage collector. This can
673 reduce the size of collections and therefore the garbage collection overhead
674 on long-running programs, depending on their particular use of datatypes.
675
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000676- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
677 improve its performance. Long divisions and remainder operations
678 are now between 50% and 150% faster.
679
Mark Dickinsonbd792642009-03-18 20:06:12 +0000680- Issue #4258: Make it possible to use base 2**30 instead of base
681 2**15 for the internal representation of integers, for performance
682 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
683 --enable-big-digits option to configure, which overrides the
684 default. Add sys.int_info structseq to provide information about
685 the internal format.
686
Mark Dickinson081dfee2009-03-18 14:47:41 +0000687- Issue #4474: PyUnicode_FromWideChar now converts characters outside
688 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
689 and sizeof(Py_UNICODE) == 2.
690
Eric Smith8ec90442009-03-14 12:29:34 +0000691- Issue #5237: Allow auto-numbered fields in str.format(). For
692 example: '{} {}'.format(1, 2) == '1 2'.
693
Antoine Pitrou652e7072009-03-13 19:25:20 +0000694- Issue #5392: when a very low recursion limit was set, the interpreter would
695 abort with a fatal error after the recursion limit was hit twice.
696
Matthias Klose042f1332009-04-04 14:32:42 +0000697- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
698 short file names.
699
Benjamin Petersond1735892009-03-07 18:46:21 +0000700Library
701-------
702
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000703- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000704 mailbox.MH.get_message().
705
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000706- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
707 error substitutions from non-strict codec error callbacks in
708 incrementalencoder and StreamWriter.
709
Georg Brandl33c28812009-04-01 23:07:29 +0000710- Issue #5656: Fix the coverage reporting when running the test suite with
711 the -T argument.
712
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000713- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
714
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000715- Issue #5624: Fix the _winreg module name still used in several modules.
716
Benjamin Petersona1b49012009-03-31 23:11:32 +0000717- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
718
Jesse Nollera9314042009-03-31 22:36:44 +0000719- Issue #5619: Multiprocessing children disobey the debug flag and causes
720 popups on windows buildbots. Patch applied to work around this issue.
721
Jesse Noller32d68c22009-03-31 18:48:42 +0000722- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
723
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000724- Issue #5387: Fixed mmap.move crash by integer overflow.
725
Jesse Nollerf8d00852009-03-31 03:25:07 +0000726- Issue #5261: Patch multiprocessing's semaphore.c to support context
727 manager use: "with multiprocessing.Lock()" works now.
728
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000729- Issue #5236: Change time.strptime() to only take strings. Didn't work with
730 bytes already but the failure was non-obvious.
731
Jesse Noller7af4ef82009-03-30 16:47:15 +0000732- Issue #5177: Multiprocessing's SocketListener class now uses
733 socket.SO_REUSEADDR on all connections so that the user no longer needs
734 to wait 120 seconds for the socket to expire.
735
Benjamin Peterson48e24782009-03-29 13:02:52 +0000736- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
737
Antoine Pitrou66994e12009-03-29 00:45:26 +0000738- Issue #1174606: Calling read() without arguments of an unbounded file
739 (typically /dev/zero under Unix) could crash the interpreter.
740
Benjamin Peterson59406a92009-03-26 17:10:29 +0000741- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
742 io.BufferedRandom have been deprecated for removal in Python 3.2.
743
Lars Gustäbel42e00912009-03-22 20:34:29 +0000744- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
745 forever on incomplete input. That caused tarfile.open() to hang when used
746 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
747 partial bzip2 compressed data.
748
Mark Dickinson79f52032009-03-17 23:12:51 +0000749- Issue #2110: Add support for thousands separator and 'n' type
750 specifier to Decimal.__format__
751
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000752- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
753 '>' alignment characters.
754
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000755- The error detection code in FileIO.close() could fail to reflect the `errno`
756 value, and report it as -1 instead.
757
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000758- Issue #5016: FileIO.seekable() could return False if the file position
759 was negative when truncated to a C int. Patch by Victor Stinner.
760
Mark Dickinsonae681df2009-03-21 10:26:31 +0000761Extension Modules
762-----------------
763
Benjamin Petersone099b372009-04-04 17:09:35 +0000764- Issue #5391: mmap now deals exclusively with bytes.
765
Mark Dickinsonae681df2009-03-21 10:26:31 +0000766- Issue #5463: In struct module, remove deprecated overflow wrapping
767 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000768 struct.error instead of returning b'\xff\xff\xff\xff'. The
769 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
770 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000771
Benjamin Petersond1735892009-03-07 18:46:21 +0000772
Benjamin Petersona58a6262009-03-07 16:34:40 +0000773What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000774================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000775
Benjamin Petersona58a6262009-03-07 16:34:40 +0000776*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000777
778Core and Builtins
779-----------------
780
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000781- The io module has been reimplemented in C for speed.
782
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000783- Give dict views an informative __repr__.
784
Eric Smith5e5c0db2009-02-20 14:25:03 +0000785- Issue #5247: Improve error message when unknown format codes are
786 used when using str.format() with str, int, and float arguments.
787
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000788- Issue #5249: time.strftime returned malformed string when format string
789 contained non ascii character on windows.
790
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000791- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
792 source has already been decoded into str.
793
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000794- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
795 rotating the object pointer by 4 bits to the right.
796
Mark Dickinson87ec0852009-02-09 17:15:59 +0000797- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
798 it now forces its argument to double before testing for infinity.
799
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000800- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
801 returns a non-number type.
802
Benjamin Peterson87618552009-02-08 15:00:52 +0000803- Issue #5182: Removed memoryview.__str__.
804
Mark Dickinsonc008a172009-02-01 13:59:22 +0000805- Issue #1717: Removed builtin cmp() function, dropped tp_compare
806 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000807 the type definition cmpfunc. The tp_compare slot has been renamed
808 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000809
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000810- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000811 were suppressing all exceptions. These include list() and bytearray().
812
Mark Dickinson1124e712009-01-28 21:25:58 +0000813- Issue #4707: round(x, n) now returns an integer if x is an integer.
814 Previously it returned a float.
815
Antoine Pitroub52ec782009-01-25 16:34:23 +0000816- Issue #4753: By enabling a configure option named '--with-computed-gotos'
817 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
818 evaluation loop is compiled with a new dispatch mechanism which gives
819 speedups of up to 20%, depending on the system, on various benchmarks.
820
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000821- Issue #4874: Most builtin decoders now reject unicode input.
822
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000823- Issue #4842: Don't allow trailing 'L' when constructing an integer
824 from a string.
825
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000826- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
827
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000828- Issue #4838: When a module is deallocated, free the memory backing the
829 optional module state data.
830
Mark Dickinson8055afd2009-01-17 10:04:45 +0000831- Issue #4910: Rename nb_long slot to nb_reserved, and change its
832 type to (void *).
833
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000834- Issue #4935: The overflow checking code in the expandtabs() method common
835 to str, bytes and bytearray could be optimized away by the compiler, letting
836 the interpreter segfault instead of raising an error.
837
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000838- Issue #3720: Fix a crash when an iterator modifies its class and removes its
839 __next__ method.
840
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000841- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
842 function no longer attempt to call the __long__ slot to convert an object
843 to an integer. Only the __int__ and __trunc__ slots are examined.
844
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000845- Issue #4893: Use NT threading on CE.
846
Martin v. Löwisec59d042009-01-12 07:59:10 +0000847- Issue #4915: Port sysmodule to Windows CE.
848
Antoine Pitrouab868312009-01-10 15:40:25 +0000849- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
850 common cases are optimized thanks to a dedicated fast path and a moderate
851 amount of loop unrolling.
852
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000853- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
854 collecting the oldest generation) so that allocating lots of objects without
855 destroying them does not show quadratic performance. Based on a proposal by
856 Martin von Löwis at
857 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
858
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000859- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000860 having been closed (for instance, a read() call could return some
861 previously buffered data). Patch by Dmitry Vasiliev.
862
Antoine Pitrou05608432009-01-09 18:53:14 +0000863- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
864 flag to work properly. Furthermore, when specifying -u, the text stdout
865 and stderr streams have line-by-line buffering enabled (the default being
866 to buffer arbitrary chunks of data).
867
Raymond Hettinger35631532009-01-09 03:58:09 +0000868- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
869 instead of ints (reducing its size from 4 to 8 times thereby reducing
870 Python's overall memory).
871
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000872- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
873 an existing .py counterpart, override the co_filename attributes of all
874 code objects if the original filename is obsolete (which can happen if the
875 file has been renamed, moved, or if it is accessed through different paths).
876 Patch by Ziga Seilnacht and Jean-Paul Calderone.
877
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000878- Issue #4580: Fix slicing of memoryviews when the item size is greater than
879 one byte. Also fixes the meaning of len() so that it returns the number of
880 items, rather than the size in bytes.
881
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000882- Issue #4075: Use OutputDebugStringW in Py_FatalError.
883
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000884- Issue #4747: When the terminal does not use utf-8, executing a script with
885 non-ascii characters in its name could fail with a "SyntaxError: None" error.
886
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000887- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000888 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000889
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000890- Issue #3680: Reference cycles created through a dict, set or deque iterator
891 did not get collected.
892
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000893- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
894 where the tp_hash and tp_dict slots are both NULL.
895
Georg Brandlccc47b62008-12-28 11:44:14 +0000896- Issue #4759: None is now allowed as the first argument of
897 bytearray.translate(). It was always allowed for bytes.translate().
898
Skip Montanaro80072cb2008-12-23 03:51:14 +0000899- Added test case to ensure attempts to read from a file opened for writing
900 fail.
901
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000902- Issue #3106: Speedup some comparisons (str/str and int/int).
903
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000904- Issue #2183: Simplify and optimize bytecode for list, dict and set
905 comprehensions. Original patch for list comprehensions by Neal Norwitz.
906
Antoine Pitrou621601a2008-12-17 23:18:19 +0000907- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
908 print elapsed times, not only when some objects are uncollectable /
909 unreachable. Original patch by Neil Schemenauer.
910
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000911- Issue #3439: Add a bit_length method to int.
912
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000913- Issue #2173: When getting device encoding, check that return value of
914 nl_langinfo is not the empty string. This was causing silent build
915 failures on OS X.
916
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000917- Issue #4597: Fixed several opcodes that weren't always propagating
918 exceptions.
919
920- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000921 context manager returns a value that cannot be converted to a bool.
922
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000923- Issue #4445: Replace "sizeof(PyBytesObject)" with
924 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
925 bytes instances. On a typical machine this saves 3 bytes of memory
926 (on average) per allocation of a bytes instance.
927
Christian Heimesa872de52008-12-05 08:26:55 +0000928- Issue #4533: File read operation was dreadfully slow due to a slowly
929 growing read buffer. Fixed by using the same growth rate algorithm as
930 Python 2.x.
931
Antoine Pitrou5504e892008-12-06 21:27:53 +0000932- Issue #4509: Various issues surrounding resize of bytearray objects to
933 which there are buffer exports (e.g. memoryview instances).
934
Georg Brandlf9734072008-12-07 15:30:06 +0000935- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
936 method on file objects with closefd=False. The file descriptor is still
937 kept open but the file object behaves like a closed file. The ``FileIO``
938 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000939
Antoine Pitroubc420402008-12-07 20:14:49 +0000940- Issue #4569: Interpreter crash when mutating a memoryview with an item size
941 larger than 1.
942
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000943- Issue #4748: Lambda generators no longer return a value.
944
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000945- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
946
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000947- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
948 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
949 step. This avoids problems with counting UTF-8 bytes that ignores the effect
950 of using the replace error handler in PyUnicode_DecodeUTF8().
951
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000952Library
953-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000954
Tarek Ziadé2f19bb12009-07-22 08:57:28 +0000955- Issue #6545: Removed assert statements in distutils.Extension, so the
956 behavior is similar when used with -O.
957
Benjamin Petersonbed7d042009-07-19 21:01:52 +0000958- unittest has been split up into a package. All old names should still work.
959
Tarek Ziadéf8926b22009-07-16 16:18:19 +0000960- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
961 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
962 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
963 for the obsolete get_versions() functions.
964
Alexandre Vassalottie52e3782009-07-17 09:18:18 +0000965- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
966
967- Issue #6314: logging: Extra checks on the "level" argument in more places.
968
969- Issue #2622: Fixed an ImportError when importing email.messsage from a
970 standalone application built with py2exe or py2app.
971
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000972- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +0000973
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000974- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +0000975 attribute.
976
Tarek Ziadé05bf01a2009-07-04 02:04:21 +0000977- Issue #6413: Fixed the log level in distutils.dist for announce.
978
Tarek Ziadée10d6de2009-07-03 08:33:28 +0000979- Issue #6403: Fixed package path usage in build_ext.
980
Alexandre Vassalottie52e3782009-07-17 09:18:18 +0000981- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
982 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
983 descriptor errors
984
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000985- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +0000986 extension in a subdirectory if the extension name had dots.
987
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000988- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +0000989 unixcompiler. Original patch by Sridhar Ratnakumar.
990
Tarek Ziadé25bd2062009-06-28 21:26:27 +0000991- Issue #6286: Now Distutils upload command is based on urllib2 instead of
992 httplib, allowing the usage of http_proxy.
993
Tarek Ziadé5e06a652009-06-16 07:43:42 +0000994- Issue #6287: Added the license field in Distutils documentation.
995
Tarek Ziadéff543362009-06-11 09:25:41 +0000996- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
997
Tarek Ziadéabcc3f42009-06-11 08:31:17 +0000998- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
999 in Makefiles. This prevents compile errors when using syntax like:
1000 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1001
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001002- Issue #6131: test_modulefinder leaked when run after test_distutils.
1003 Patch by Hirokazu Yamamoto.
1004
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001005- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1006
Vinay Sajipaffbd872009-06-11 10:11:47 +00001007- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001008 and tests on pywin32 by Tim Golden.
1009
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001010- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1011
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001012- Issue #6046: Fixed the library extension when distutils build_ext is used
1013 inplace. Initial patch by Roumen Petrov.
1014
Vinay Sajipaffbd872009-06-11 10:11:47 +00001015- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001016 subcommand.
1017
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001018- Issue #6022: a test file was created in the current working directory by
1019 test_get_outputs in Distutils.
1020
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001021- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1022 inplace option. Initial patch by kxroberto.
1023
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001024- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1025 for old-style extensions.
1026
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001027- Issue #5976: Fixed Distutils test_check_environ.
1028
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001029- Issue #5941: Distutils build_clib command was not working anymore because
1030 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1031 Makefile besides AR and make Distutils use it. Original patch by David
1032 Cournapeau.
1033
R. David Murrayb507d2e2009-04-29 15:34:32 +00001034- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1035
Vinay Sajipaffbd872009-06-11 10:11:47 +00001036- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001037 anymore.
1038
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001039- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001040 sysconfig.get_config_vars.
1041
Tarek Ziadé23336082009-04-25 12:39:56 +00001042- Issue #4951: Fixed failure in test_httpservers.
1043
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001044- Issue #5795: Fixed test_distutils failure on Debian ppc.
1045
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001046- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1047
Georg Brandl1f9fa312009-04-27 16:42:58 +00001048- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1049 a value in SafeConfigParser.
1050
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001051- Issue #5732: added a new command in Distutils: check.
1052
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001053- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001054 platforms. Initial patch by Paul Moore.
1055
Tarek Ziadéf6370502009-04-05 22:57:21 +00001056- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1057 Initial fix by Steven Bethard.
1058
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001059- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1060 Initial fix by Wayne Davison.
1061
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001062- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001063
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001064- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001065
Brett Cannonf47e84c2009-04-01 16:06:01 +00001066- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1067 instead of performing them in functions. Helps prevent import deadlocking in
1068 threads.
1069
R. David Murraye59482e2009-04-01 03:42:00 +00001070- Issue #2522: locale.format now checks its first argument to ensure it has
1071 been passed only one pattern, avoiding mysterious errors where it appeared
1072 that it was failing to do localization.
1073
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001074- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1075 Brandl.
1076
Antoine Pitrou350370c2009-03-14 00:13:13 +00001077- Issue #1222: locale.format() bug when the thousands separator is a space
1078 character.
1079
Tarek Ziadé516db942009-03-11 12:52:00 +00001080- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1081 Tim Golden.
1082
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001083- collections.deque() objects now have a read-only attribute called maxlen.
1084
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001085- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1086 it is has been populated and properly configured in order to prevent
1087 window flashing.
1088
Guilherme Polo56f5be52009-03-07 01:54:57 +00001089- Issue #4792: Prevent a segfault in _tkinter by using the
1090 guaranteed to be safe interp argument given to the PythonCmd in place of
1091 the Tcl interpreter taken from a PythonCmd_ClientData.
1092
1093- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1094
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001095- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1096 Original patch by Akira Kitada.
1097
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001098- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1099
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001100- Issue #5385: Fixed mmap crash after resize failure on windows.
1101
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001102- Issue #5179: Fixed subprocess handle leak on failure on windows.
1103
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001104- PEP 372: Added collections.OrderedDict().
1105
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001106- The _asdict() for method for namedtuples now returns an OrderedDict().
1107
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001108- configparser now defaults to using an ordered dictionary.
1109
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001110- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1111 import guess_extension`` was used.
1112
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001113- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1114 with same tagname but larger size than first map. (Windows)
1115
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001116- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1117 overrun.
1118
Tarek Ziadéf0721222009-02-28 10:16:43 +00001119- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1120 bdist_rpm command.
1121
1122- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1123
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001124- Issue #5052: make Distutils compatible with 2.3 again.
1125
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001126- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1127 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001128
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001129- Issue #5287: Add exception handling around findCaller() call to help out
1130 IronPython.
1131
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001132- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1133 The file was resized to wrong size.
1134
1135- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1136
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001137- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001138 from the package_data and the data_files metadata.
1139
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001140- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001141 support.TempdirManager, to avoid writing in the tests directory.
1142
Tarek Ziadé68c50952009-02-13 23:04:17 +00001143- Issue #4524: distutils build_script command failed with --with-suffix=3.
1144 Initial patch by Amaury Forgeot d'Arc.
1145
Tarek Ziadé811d6242009-02-13 22:26:15 +00001146- Issue #2461: added tests for distutils.util
1147
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001148- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1149 which inherited from numbers.py which did not have __slots__ defined. The
1150 numbers hierarchy now has its own __slots__ declarations.
1151
Antoine Pitroub353c122009-02-11 00:39:14 +00001152- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1153 encoding.
1154
Thomas Heller465c8022009-02-10 18:59:04 +00001155- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1156 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1157
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001158- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1159 under NT and OS2. Patch by Philip Jenvey.
1160
Brett Cannonbefb14f2009-02-10 02:10:16 +00001161- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1162 to be recreated. This avoids a timing hole thanks to the old reliance on the
1163 ctime of the files involved.
1164
Guilherme Polob681df42009-02-09 22:33:59 +00001165- Issue #5122: Synchronize tk load failure check to prevent a potential
1166 deadlock.
1167
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001168- Issue #1818: collections.namedtuple() now supports a keyword argument
1169 'rename' which lets invalid fieldnames be automatically converted to
1170 positional names in the form, _1, _2, ...
1171
Guilherme Poloae098992009-02-09 16:44:24 +00001172- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1173
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001174- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1175 public documented method ``ZipImporter.get_filename()``.
1176
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001177- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1178 the execution of packages by looking for and executing a ``__main__``
1179 submodule when a package name is supplied. Initial patch by Andi
1180 Vajda.
1181
Guilherme Polo491aee22009-02-06 23:16:11 +00001182- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1183 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1184 Tkapp_Call when calling from a thread different than the one that created
1185 the Tcl interpreter. Patch by Robert Hancock.
1186
Eric Smith0e5b5622009-02-06 01:32:42 +00001187- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1188 Ross Light.
1189
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001190- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001191 environment/Makefile. Patch by Douglas Greiman.
1192
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001193- Issue #1276768: The verbose option was not used in the code of
1194 distutils.file_util and distutils.dir_util.
1195
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001196- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001197 --enabled-shared activated. Initial patch by Dave Peterson.
1198
Guilherme Polo7f423952009-02-02 21:17:09 +00001199- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1200
Raymond Hettinger85602262009-02-03 04:19:10 +00001201- The shelve module now defaults to pickle protocol 3.
1202
Brett Cannone61426e2009-01-30 01:31:34 +00001203- Fix a bug in the trace module where a bytes object from co_lnotab had its
1204 items being passed through ord().
1205
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001206- Issue #2047: shutil.move() could believe that its destination path was
1207 inside its source path if it began with the same letters (e.g. "src" vs.
1208 "src.new").
1209
Guilherme Polo5f238482009-01-28 14:41:10 +00001210- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1211
Raymond Hettinger89e12962009-01-26 02:09:03 +00001212- Removed isSequenceType(), isMappingType, and isNumberType() from the
1213 operator module; use the abstract base classes instead. Also removed
1214 the repeat() function; use mul() instead.
1215
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001216- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001217 collections.namedtuple() relied on __name__ being defined.
1218
1219- Backport importlib from Python 3.1. Only the import_module() function has
1220 been backported to help facilitate transitions from 2.7 to 3.1.
1221
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001222- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1223 the tar file was overriden by the gztar one.
1224
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001225- Issue #4863: distutils.mwerkscompiler has been removed.
1226
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001227- Added a new itertools functions: combinations_with_replacement()
1228 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001229
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001230- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001231 allowed non-integer arguments.
1232
Jesse Noller41faa542009-01-25 03:45:53 +00001233- Fix and properly document the multiprocessing module's logging
1234 support, expose the internal levels and provide proper usage
1235 examples.
1236
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001237- Issue #1672332: fix unpickling of subnormal floats, which was
1238 producing a ValueError on some platforms.
1239
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001240- Issue #3881: Help Tcl to load even when started through the
1241 unreadable local symlink to "Program Files" on Vista.
1242
Martin v. Löwis59e47792009-01-24 14:10:07 +00001243- Issue #4710: Extract directories properly in the zipfile module;
1244 allow adding directories to a zipfile.
1245
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001246- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001247 --without-threads argument. When this occurs, _multiprocessing will
1248 be disabled, and not compiled.
1249
Antoine Pitrou08838b62009-01-21 00:55:13 +00001250- Issue #5008: When a file is opened in append mode with the new IO library,
1251 do an explicit seek to the end of file (so that e.g. tell() returns the
1252 file size rather than 0). This is consistent with the behaviour of the
1253 traditional 2.x file object.
1254
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001255- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1256 parameter was set.
1257
Mark Dickinson8dd05142009-01-20 20:43:58 +00001258- Issue #4842: Always append a trailing 'L' when pickling longs using
1259 pickle protocol 0. When reading, the 'L' is optional.
1260
Brett Cannonafccd632009-01-20 02:21:27 +00001261- Add the importlib package.
1262
Jesse Noller9a0fc972009-01-18 21:12:58 +00001263- Issue #4301: Patch the logging module to add processName support, remove
1264 _check_logger_class from multiprocessing.
1265
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001266- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001267 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001268
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001269- Issue #4959: inspect.formatargspec now works for keyword only arguments
1270 without defaults.
1271
Jesse Noller6214edd2009-01-19 16:23:53 +00001272- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1273 for *nix machines for negative handles and large int handles. Without this check
1274 it is possible to segfault the interpreter.
1275
Jesse Nollerb0516a62009-01-18 03:11:38 +00001276- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1277 in sharedctypes.py.
1278
1279- Issue #1225107: inspect.isclass() returned True for instances with a custom
1280 __getattr__.
1281
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001282- Issue #3826 and #4791: The socket module now closes the underlying socket
1283 appropriately when it is being used via socket.makefile() objects
1284 rather than delaying the close by waiting for garbage collection to do it.
1285
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001286- Issue #1696199: Add collections.Counter() for rapid and convenient
1287 counting.
1288
Antoine Pitrou308705e2009-01-10 16:22:51 +00001289- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1290
Thomas Heller5e4e4272009-01-08 09:34:20 +00001291- Issue #4867: Fixed a crash in ctypes when passing a string to a
1292 function without defining argtypes.
1293
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001294- Issue #4272: Add an optional argument to the GzipFile constructor to override
1295 the timestamp in the gzip stream. The default value remains the current time.
1296 The information can be used by e.g. gunzip when decompressing. Patch by
1297 Jacques Frechet.
1298
Mark Dickinson315a20a2009-01-04 21:34:18 +00001299- Restore Python 2.3 compatibility for decimal.py.
1300
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001301- Issue #3638: Remove functions from _tkinter module level that depend on
1302 TkappObject to work with multiple threads.
1303
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001304- Issue #4718: Adapt the wsgiref package so that it actually works with
1305 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001306 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1307
Raymond Hettinger771ed762009-01-03 19:20:32 +00001308- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1309 to the decimal module.
1310
Georg Brandl3a9b0622009-01-03 22:07:57 +00001311- Fractions.from_float() no longer loses precision for integers too big to
1312 cast as floats.
1313
Mark Dickinsonf9236412009-01-02 23:23:21 +00001314- Issue #4812: add missing underscore prefix to some internal-use-only
1315 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1316
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001317- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001318 did unnecessary work in the common case where no key function was specified.
1319
Georg Brandlb1441c72009-01-03 22:33:39 +00001320- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1321 the function is not a generator.
1322
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001323- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1324 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001325
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001326- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001327 function. Original patch by Thomas Heller.
1328
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001329- Issue #3767: Convert Tk object to string in tkColorChooser.
1330
Martin v. Löwise354d782008-12-29 16:03:04 +00001331- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1332
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001333- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1334 the code under test can be written inline if more practical.
1335
Georg Brandldb7b6b92009-01-01 15:53:14 +00001336- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1337 works as expected in the interactive environment.
1338
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001339- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1340 Gabriel Genellina.
1341
Antoine Pitrou180a3362008-12-14 16:36:46 +00001342- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1343 boundary.
1344
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001345- Issue #4223: inspect.getsource() will now correctly display source code
1346 for packages loaded via zipimport (or any other conformant PEP 302
1347 loader). Original patch by Alexander Belopolsky.
1348
1349- Issue #4201: pdb can now access and display source code loaded via
1350 zipimport (or any other conformant PEP 302 loader). Original patch by
1351 Alexander Belopolsky.
1352
1353- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1354 302 conformant loader) will now work correctly in most cases (they
1355 are still subject to the constraints that exist for all code running
1356 from inside a module loaded via a PEP 302 loader and attempting to
1357 perform IO operations based on __file__). Original patch by
1358 Alexander Belopolsky.
1359
1360- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1361 allows backporting to maintenance branches. Original patch by
1362 Alexander Belopolsky.
1363
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001364- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1365 a non-ASCII letter.
1366
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001367- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1368
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001369- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1370 codec cannot be found. This is for compatibility with the builtin behavior.
1371
Facundo Batista708d5812008-12-11 04:20:07 +00001372- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1373 give correct results in the case where one argument is a quiet NaN
1374 and the other is a finite number that requires rounding.
1375
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001376- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1377 libs.
1378
Georg Brandlf9734072008-12-07 15:30:06 +00001379- Added the subprocess.check_call_output() convenience function to get output
1380 from a subprocess on success or raise an exception on error.
1381
1382- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1383 support unusual filenames (such as those containing semi-colons) in
1384 Content-Disposition headers.
1385
1386- Issue #4384: Added logging integration with warnings module using
1387 captureWarnings(). This change includes a NullHandler which does nothing;
1388 it will be of use to library developers who want to avoid the "No handlers
1389 could be found for logger XXX" message which can appear if the library user
1390 doesn't configure logging.
1391
1392- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1393 exception.
1394
Georg Brandleee31162008-12-07 15:15:22 +00001395- Issue #4529: fix the parser module's validation of try-except-finally
1396 statements.
1397
1398- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1399 not a malformed option.
1400
1401- Added the subprocess.check_output() convenience function to get output
1402 from a subprocess on success or raise an exception on error.
1403
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001404- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1405 the corresponding tests now pass.
1406
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001407- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1408 it was calling the wrong open() function.
1409
Fred Drake9a0a65b2008-12-04 19:24:50 +00001410- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1411 support unusual filenames (such as those containing semi-colons) in
1412 Content-Disposition headers.
1413
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001414- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1415 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1416
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001417- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1418 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1419 and getservbyport().
1420
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001421- Windows locale mapping updated to Vista.
1422
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001423Tools/Demos
1424-----------
1425
Antoine Pitrou8a681222009-02-07 17:13:31 +00001426- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1427 and make it 2.6-compatible.
1428
Guilherme Poloa7d27972009-01-28 16:06:51 +00001429- Ttk demos added in Demo/tkinter/ttk/
1430
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001431- Issue #4677: add two list comprehension tests to pybench.
1432
Georg Brandlb1441c72009-01-03 22:33:39 +00001433
1434Build
1435-----
1436
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001437- Issue #6094: Build correctly with Subversion 1.7.
1438
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001439- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1440
Antoine Pitrou8966c992009-05-01 21:18:27 +00001441- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1442 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1443
Matthias Klose55708cc2009-04-30 08:06:49 +00001444- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001445 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001446
Matthias Klose906785c2009-02-22 23:18:38 +00001447- Link the shared python library with $(MODLIBS).
1448
Martin v. Löwis11f72102009-02-10 13:13:30 +00001449- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1450
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001451- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1452
Martin v. Löwise97637d2009-01-11 09:45:11 +00001453- Issue #4895: Use _strdup on Windows CE.
1454
Georg Brandlb1441c72009-01-03 22:33:39 +00001455- Issue #4472: "configure --enable-shared" now works on OSX
1456
1457- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1458
1459- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1460
1461- Issue #4289: Remove Cancel button from AdvancedDlg.
1462
1463- Issue #1656675: Register a drop handler for .py* files on Windows.
1464
1465- Issue #4120: Exclude manifest from extension modules in VS2008.
1466
1467- Issue #4091: Install pythonxy.dll in system32 again.
1468
1469- Issue #4018: Disable "for me" installations on Vista.
1470
1471- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1472
1473- Issue #4204: Fixed module build errors on FreeBSD 4.
1474
1475
1476C-API
1477-----
1478
Mark Dickinson21776072009-02-10 16:13:25 +00001479- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1480 for negative arguments. Previously, it raised TypeError.
1481
Georg Brandlb1441c72009-01-03 22:33:39 +00001482- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1483
1484- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1485 the GIL is released, or owned by another thread.
1486
1487- Issue #4122: On Windows, fix a compilation error when using the
1488 Py_UNICODE_ISSPACE macro in an extension module.
1489
1490
Mark Dickinsone675f082008-12-11 21:56:00 +00001491Extension Modules
1492-----------------
1493
Gregory P. Smith365a1862009-02-12 07:35:29 +00001494- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1495 supporting objects as input no matter how it was compiled (built in
1496 implementations or external openssl library).
1497
Mark Dickinson29500f62009-01-15 15:36:10 +00001498- Issue #4397: Fix occasional test_socket failure on OS X.
1499
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001500- Issue #4279: Fix build of parsermodule under Cygwin.
1501
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001502- Issue #4751: hashlib now releases the GIL when hashing large buffers
1503 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1504 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1505
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001506- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1507
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001508- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1509 or decompress several streams at once on multi-CPU systems. Also, the GIL
1510 is now released when computing the CRC of a large buffer. Patch by ebfe.
1511
Georg Brandlb1441c72009-01-03 22:33:39 +00001512- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1513
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001514- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1515
Mark Dickinsone675f082008-12-11 21:56:00 +00001516- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1517 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001518
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001519- Issue #4583: array.array would not always prohibit resizing when a buffer
1520 has been exported, resulting in an interpreter crash when accessing the
1521 buffer.
1522
Martin v. Löwis841edad2008-11-30 10:36:49 +00001523
Jack Diederiche0cbd692009-04-01 04:27:09 +00001524- Issue #5228: Make functools.partial objects can now be pickled.
1525
Guilherme Polo9de29af2009-01-28 20:40:48 +00001526Tests
1527-----
1528
Antoine Pitrou88909542009-06-29 13:54:42 +00001529- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1530 regression tests in parallel, shortening the total runtime.
1531
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001532- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1533 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1534 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1535 skip the tests if DISPLAY is defined but can't be used.
1536
R. David Murraya21e4ca2009-03-31 23:16:50 +00001537- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001538 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001539 from test support, which does the conversion.
1540
Guilherme Polo9de29af2009-01-28 20:40:48 +00001541- Issue #5083: New 'gui' resource for regrtest.
1542
1543
Brett Cannon7317c1e2008-11-25 19:19:17 +00001544Docs
1545----
1546
Georg Brandl52b92cc2008-05-25 09:43:03 +00001547
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001548**(For information about older versions, consult the HISTORY file.)**