blob: 27f6f4536e844f0d41c9967c2ed5bc433f0fb642 [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
Mark Dickinson45f799f2009-08-02 20:08:54 +000066- Issue #2715: Remove remnants of Carbon.File from binhex module.
67
Mark Dickinson345adc42009-08-02 10:14:23 +000068- Issue #6595: The Decimal constructor now allows arbitrary Unicode
69 decimal digits in input, as recommended by the standard. Previously
70 it was restricted to accepting [0-9].
71
Jack Diederich36596a32009-07-26 22:23:04 +000072- Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT
73 DO/DONT correctly.
74
Senthil Kumaran67305382009-07-26 04:46:00 +000075- Issue #1424152: Fix for http.client, urllib.request to support SSL while
76 working through proxy. Original patch by Christopher Li, changes made by
77 Senthil Kumaran
Senthil Kumaran97f0c6b2009-07-25 04:24:38 +000078
Brett Cannon69194272009-07-20 04:23:48 +000079- Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for
80 loaders that allow for modules to be executed. Both importlib.abc.PyLoader
81 and PyPycLoader inherit from this class and provide implementations in
82 relation to other methods required by the ABCs.
83
Brett Cannon64ef00f2009-07-20 03:19:18 +000084- importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like
85 the documentation said it did even though the code in PyLoader relied on the
86 abstract method required by ResourceLoader.
87
Mark Dickinson85424c92009-07-18 14:41:42 +000088- Issue #6431: Make Fraction type return NotImplemented when it doesn't
89 know how to handle a comparison without loss of precision. Also add
90 correct handling of infinities and nans for comparisons with float.
91
Hirokazu Yamamoto1c0c0032009-07-17 06:55:42 +000092- Issue #6415: Fixed warnings.warn sagfault on bad formatted string.
93
Amaury Forgeot d'Arc97e5f282009-07-11 09:35:13 +000094- Issue #6358: The exit status of a command started with os.popen() was
95 reported differently than it did with python 2.x.
96
Amaury Forgeot d'Arc2de11152009-07-09 23:07:52 +000097- Issue #6323: The pdb debugger did not exit when running a script with a
98 syntax error.
99
Gregory P. Smithd06fa472009-07-04 02:46:54 +0000100- Issue #3392: The subprocess communicate() method no longer fails in select()
101 when file descriptors are large; communicate() now uses poll() when possible.
102
Antoine Pitrou54923952009-07-01 14:53:06 +0000103- Issue #6369: Fix an RLE decompression bug in the binhex module.
104
Hirokazu Yamamoto7a9e1bd2009-06-29 14:54:12 +0000105- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
106
Benjamin Peterson5a6deb42009-06-28 21:35:31 +0000107- The deprecated function string.maketrans has been removed.
108
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000109- Issue #4005: Fixed a crash of pydoc when there was a zip file present in
110 sys.path.
111
Alexandre Vassalotticf76e1a2009-07-22 03:24:36 +0000112- Issue #6218: io.StringIO and io.BytesIO instances are now picklable.
113
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000114Extension Modules
115-----------------
116
Mark Dickinson1f268282009-07-28 17:22:36 +0000117- Issue #6561: '\d' in a regex now matches only characters with
118 Unicode category 'Nd' (Number, Decimal Digit). Previously it also
119 matched characters with category 'No'.
120
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000121- Issue #4509: Array objects are no longer modified after an operation
Alexandre Vassalotti9b45cb42009-07-05 06:50:08 +0000122 failing due to the resize restriction in-place when the object has exported
123 buffers.
124
Alexandre Vassalottiad077152009-07-15 17:49:23 +0000125- Issue #2389: Array objects are now pickled in a portable manner.
126
Martin v. Löwis95c46012009-06-28 09:36:14 +0000127Build
128-----
129
Amaury Forgeot d'Arc321e5332009-07-02 23:08:45 +0000130- Issue 4601: 'make install' did not set the appropriate permissions on
131 directories.
132
Martin v. Löwis95c46012009-06-28 09:36:14 +0000133- Issue 5390: Add uninstall icon independent of whether file
134 extensions are installed.
135
Brett Cannonb49c70c2009-07-15 04:08:33 +0000136Tests
137-----
138
Brett Cannon3c273842009-07-20 00:14:29 +0000139- Fixed tests in importlib.test.source.test_abc_loader that were masking
140 the proper exceptions that should be raised for missing or improper code
141 object bytecode.
142
Brett Cannonb49c70c2009-07-15 04:08:33 +0000143- Removed importlib's custom test discovery code and switched to
144 unittest.TestLoader.discover().
145
Benjamin Peterson46ea4f72009-06-27 21:40:27 +0000146
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000147What's New in Python 3.1?
148=========================
149
150*Release date: 27-June-2009*
151
152Core and Builtins
153-----------------
154
Mark Dickinsonad195562009-06-24 19:01:32 +0000155- Issue #6334: Fix bug in range length calculation for ranges with
156 large arguments.
157
Raymond Hettinger159eac92009-06-23 20:38:54 +0000158- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
159 because it wasn't recognized as a sequence).
160
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000161Library
162-------
163
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000164- Issue #6314: logging: performs extra checks on the "level" argument.
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000165
Facundo Batista10706e22009-06-19 20:34:30 +0000166- Issue #6274: Fixed possible file descriptors leak in subprocess.py
167
Benjamin Peterson6a38ced2009-06-14 18:32:19 +0000168- Accessing io.StringIO.buffer now raises an AttributeError instead of
169 io.UnsupportedOperation.
170
Vinay Sajip0f6eac22009-06-21 17:46:49 +0000171- Issue #6271: mmap tried to close invalid file handle (-1) when anonymous.
Hirokazu Yamamoto3d8827d2009-06-14 04:58:16 +0000172 (On Unix)
173
Gregory P. Smithe88749b2009-06-26 08:05:13 +0000174- Issue #1202: zipfile module would cause a struct.error when attempting to
175 store files with a CRC32 > 2**31-1.
176
Matthias Kloseab2b7552009-06-22 13:05:52 +0000177Extension Modules
178-----------------
179
180- Issue #5590: Remove unused global variable in pyexpat extension.
181
Benjamin Peterson01bf2362009-06-13 14:50:22 +0000182
Antoine Pitrou3b1b8072009-05-30 21:01:23 +0000183What's New in Python 3.1 Release Candidate 2?
184=============================================
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000185
Benjamin Petersonc7c12282009-06-13 13:15:04 +0000186*Release date: 13-June-2009*
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000187
188Core and Builtins
189-----------------
190
Raymond Hettinger94f55832009-06-12 18:40:16 +0000191- Fixed SystemError triggered by "range([], 1, -1)".
192
Amaury Forgeot d'Arc66f8c432009-06-09 21:30:01 +0000193- Issue #5924: On Windows, a large PYTHONPATH environment variable
194 (more than 255 characters) would be completely ignored.
195
Amaury Forgeot d'Arc24e581f2009-06-01 21:28:37 +0000196- Issue #4547: When debugging a very large function, it was not always
197 possible to update the lineno attribute of the current frame.
198
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000199- Issue #5330: C functions called with keyword arguments were not reported by
Alexandre Vassalottiea3714e2009-07-17 09:34:31 +0000200 the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
Antoine Pitrou8e124f32009-05-30 21:41:10 +0000201
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000202Library
203-------
204
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000205- Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000206 expression string pattern was trying to match against a bytes returned by
Tarek Ziadéc9e6cec2009-07-12 08:27:26 +0000207 Popen. Tested under win32 to build the py-postgresql project.
208
Martin v. Löwis83eacca2009-06-12 17:31:41 +0000209- Issue #6258: Support AMD64 in bdist_msi.
210
R. David Murray58641de2009-06-12 15:33:19 +0000211- Issue #6195: fixed doctest to no longer try to read 'source' data from
212 binary files.
213
Vinay Sajipaffbd872009-06-11 10:11:47 +0000214- Issue #5262: Fixed bug in next rollover time computation in
215 TimedRotatingFileHandler.
216
Benjamin Peterson0926ad12009-06-06 18:02:12 +0000217- Issue #6217: The C implementation of io.TextIOWrapper didn't include the
218 errors property. Additionally, the errors and encoding properties of StringIO
219 are always None now.
220
Antoine Pitroud9dfaa92009-06-04 20:32:06 +0000221- Issue #6137: The pickle module now translates module names when loading
222 or dumping pickles with a 2.x-compatible protocol, in order to make data
223 sharing and migration easier. This behaviour can be disabled using the
224 new `fix_imports` optional argument.
225
Raymond Hettinger40925d22009-06-04 18:32:39 +0000226- Removed the ipaddr module.
227
Georg Brandlb54d8012009-06-04 09:11:51 +0000228- Issue #3613: base64.{encode,decode}string are now called
229 base64.{encode,decode}bytes which reflects what type they accept and return.
230 The old names are still there as deprecated aliases.
231
Georg Brandl317185a2009-06-04 09:00:56 +0000232- Issue #5767: Remove sgmlop support from xmlrpc.client.
233
Martin v. Löwis74b7e442009-06-01 04:23:07 +0000234- Issue #6150: Fix test_unicode on wide-unicode builds.
235
Antoine Pitrouc06de472009-05-30 21:04:26 +0000236- Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty
237 parameters.
238
Martin v. Löwis79b13872009-06-01 04:13:14 +0000239Windows
240-------
241
Martin v. Löwisb7a51562009-06-07 17:55:17 +0000242- Issue #6221: Delete test registry key before running the test.
243
Martin v. Löwis79b13872009-06-01 04:13:14 +0000244- Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file.
245
Amaury Forgeot d'Arc11729992009-06-01 21:16:17 +0000246C-API
247-----
248
249- Issue #5735: Python compiled with --with-pydebug should throw an
250 ImportError when trying to import modules compiled without
251 --with-pydebug, and vice-versa.
252
Benjamin Peterson54e8ddf2009-05-30 18:43:49 +0000253
Brett Cannonc6d936e2009-06-07 20:09:53 +0000254Build
255-----
256
257- Issue #6154: Make sure the intl library is added to LIBS if needed. Also
258 added LIBS to OS X framework builds.
259
Ronald Oussoren99aab652009-06-08 21:22:57 +0000260- Issue #5809: Specifying both --enable-framework and --enable-shared is
261 an error. Configure now explicity tells you about this.
262
263
Brett Cannonc6d936e2009-06-07 20:09:53 +0000264
Mark Dickinson4eb88b32009-05-11 16:41:34 +0000265What's New in Python 3.1 release candidate 1?
266=============================================
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000267
Benjamin Petersone6ad3872009-05-30 15:30:16 +0000268*Release date: 2009-05-30*
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000269
270Core and Builtins
271-----------------
272
Martin v. Löwis8ed91b22009-05-29 16:22:26 +0000273- Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion
274 of the command line.
275
Martin v. Löwisc15bdef2009-05-29 14:47:46 +0000276- Issue #6012: Add cleanup support to O& argument parsing.
277
Eric Smith41669ca2009-05-23 14:23:22 +0000278- Issue #6089: Fixed str.format with certain invalid field specifiers
279 that would raise SystemError.
280
Raymond Hettinger2bcde142009-05-29 04:52:27 +0000281- Issue #5982: staticmethod and classmethod now expose the wrapped
282 function with __func__.
283
Raymond Hettinger91e3b9d2009-05-28 22:20:03 +0000284- Added support for multiple context managers in the same with-statement.
285 Deprecated contextlib.nested() which is no longer needed.
Georg Brandl0c315622009-05-25 21:10:36 +0000286
Mark Dickinson6b1e43b2009-05-20 18:41:04 +0000287- Issue #5829: complex("1e500") no longer raises OverflowError. This
288 makes it consistent with float("1e500") and interpretation of real
289 and imaginary literals.
290
Hirokazu Yamamoto8223c242009-05-17 04:21:53 +0000291- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
292
R. David Murraydd226ea2009-05-13 12:27:21 +0000293- Issue #5994: the marshal module now has docstrings.
294
Mark Dickinsond1ec8b22009-05-11 15:45:15 +0000295- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
296 (1) inf and nan strings with trailing whitespace were incorrectly
297 rejected; (2) parsing of strings representing infinities and nans
298 was locale aware; and (3) the interpretation of fromhex('-nan')
299 didn't match that of float('-nan').
300
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000301Library
302-------
303
Martin v. Löwisb6a748b2009-05-29 15:23:17 +0000304- Issue #4859: Implement PEP 383 for pwd, spwd, and grp.
305
R. David Murrayfb123912009-05-28 18:19:00 +0000306- smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259).
307
R. David Murray1f1b9d32009-05-27 20:56:59 +0000308- Issue #6121: pydoc now ignores leading and trailing spaces in the
309 argument to the 'help' function.
310
Georg Brandlfaf41492009-05-26 18:31:11 +0000311- Issue #6118: urllib.parse.quote_plus ignored the encoding and errors
312 arguments for strings with a space in them.
313
Raymond Hettinger089ba7f2009-05-27 00:38:24 +0000314- collections.namedtuple() was not working with the following field
315 names: cls, self, tuple, itemgetter, and property.
316
Benjamin Peterson14a3dd72009-05-25 00:51:58 +0000317- In unittest, using a skipping decorator on a class is now equivalent to
318 skipping every test on the class. The ClassTestSuite class has been removed.
319
Martin v. Löwis70ccd162009-05-24 19:47:22 +0000320- Issue #6050: Don't fail extracting a directory from a zipfile if
321 the directory already exists.
322
Antoine Pitrou61f77b52009-05-24 15:46:13 +0000323- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
324 than an int, which makes some operations possible under 64-bit Linux (e.g.
325 DN_MULTISHOT with F_NOTIFY).
326
Antoine Pitrou716c4442009-05-23 19:04:03 +0000327- Issue #5761: Add the name of the underlying file to the repr() of various
328 IO objects.
329
R. David Murraycaa27b72009-05-23 18:49:56 +0000330- Issue #5259: smtplib plain auth login no longer gives a traceback. Fix
331 by Musashi Tamura, tests by Marcin Bachry.
332
Antoine Pitrouc3ee1662009-05-23 16:02:33 +0000333- Issue #1983: Fix functions taking or returning a process identifier to use
334 the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
335 a process identifier type wider than the standard C integer type.
336
R. David Murray87e20742009-05-23 01:30:26 +0000337- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
338 Patch by Farhan Ahmad, test by Marcin Bachry.
339
Antoine Pitrou6e610062009-05-15 17:04:50 +0000340- Issue #2116: Weak references and weak dictionaries now support copy()ing and
341 deepcopy()ing.
342
Antoine Pitrouc1d09362009-05-15 12:15:51 +0000343- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
344
Antoine Pitrou37d1c182009-05-14 21:54:00 +0000345- Issue #5918: Fix a crash in the parser module.
346
Antoine Pitrou2ca24f02009-05-14 21:30:46 +0000347- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
348
Antoine Pitroue4501852009-05-14 18:55:55 +0000349- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
350 library. This means, for example, that opening an UTF-16 text file in
351 append mode doesn't add a BOM at the end of the file if the file isn't
352 empty.
353
R. David Murray74b89242009-05-13 17:33:03 +0000354- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
355 file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix
356 corrects a pydoc regression.
357
R. David Murray99352742009-05-07 18:24:38 +0000358- Issue 5955: aifc's close method did not close the file it wrapped,
359 now it does. This also means getfp method now returns the real fp.
360
Benjamin Peterson932073a2009-05-23 16:14:33 +0000361Installation
362------------
363
364- Issue #6047: fullinstall has been removed because Python 3's executable will
365 now be known as python3.
Benjamin Petersonaccdca52009-05-06 23:26:59 +0000366
Ronald Oussorenbe7149e2009-05-26 21:39:08 +0000367- Lib/smtpd.py is no longer installed as a script.
368
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000369Extension Modules
370-----------------
371
Martin v. Löwisa6a9c4d2009-05-30 06:15:30 +0000372- Issue #3061: Use wcsftime for time.strftime where available.
Martin v. Löwis1b01ccd2009-05-30 06:13:40 +0000373
Martin v. Löwise23c8682009-05-29 16:01:34 +0000374- Issue #4873: Fix resource leaks in error cases of pwd and grp.
375
Martin v. Löwisdb1c3992009-05-23 10:38:26 +0000376- Issue #6093: Fix off-by-one error in locale.strxfrm.
377
Benjamin Peterson744af442009-05-23 18:51:49 +0000378- The _functools and _locale modules are now built into the libpython shared
379 library instead of as extension modules.
Benjamin Peterson3dc22e82009-05-23 17:09:43 +0000380
Antoine Pitrou20327222009-05-24 20:39:11 +0000381Build
382-----
383
384- Issue #3585: Add pkg-config support. It creates a python-2.7.pc file
385 and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by
386 Clinton Roy.
387
Brett Cannon1262e7c2009-05-11 01:47:11 +0000388Tests
389-----
390
391- Issue 5442: Tests for importlib were not properly skipping case-sensitivity
392 tests on darwin even when the OS was installed on a case-sensitive
393 filesystem. Also fixed tests that should not be run when
394 sys.dont_write_bytecode is true.
395
396
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000397What's New in Python 3.1 beta 1?
398================================
399
Benjamin Peterson5c5f3de2009-05-06 20:43:28 +0000400*Release date: 2009-05-06*
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000401
402Core and Builtins
403-----------------
404
Mark Dickinson865e01a2009-05-07 16:37:01 +0000405- Issue #5914: Add new C API function PyOS_string_to_double, and
406 deprecate PyOS_ascii_strtod and PyOS_ascii_atof.
407
Eric Smith741191f2009-05-06 13:08:15 +0000408- Issue #3382: float.__format__, complex.__format__, and %-formatting
409 no longer map 'F' to 'f'. Because of issue #5859 (below), this only
410 affects nan -> NAN and inf -> INF.
411
Mark Hammond5a607a32009-05-06 08:04:54 +0000412- Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames
413 in all operations, including splitdrive, split, etc. splitunc() now issues
414 a PendingDeprecation warning.
415
Eric Smith63376222009-05-05 14:04:18 +0000416- Issue #5920: For float.__format__, change the behavior with the
417 empty presentation type (that is, not one of 'e', 'f', 'g', or 'n')
418 to be like 'g' but with at least one decimal point and with a
419 default precision of 12. Previously, the behavior the same but with
420 a default precision of 6. This more closely matches str(), and
421 reduces surprises when adding alignment flags to the empty
422 presentation type. This also affects the new complex.__format__ in
423 the same way.
424
Martin v. Löwis011e8422009-05-05 04:43:17 +0000425- Implement PEP 383, Non-decodable Bytes in System Character Interfaces.
426
R. David Murrayb18500d2009-05-04 22:59:07 +0000427- Issue #5890: in subclasses of 'property' the __doc__ attribute was
428 shadowed by classtype's, even if it was None. property now
429 inserts the __doc__ into the subclass instance __dict__.
430
Antoine Pitrou244651a2009-05-04 18:56:13 +0000431- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
432 sequences. Patch by Nick Barnes and Victor Stinner.
433
Martin v. Löwise0a2b722009-05-10 08:08:56 +0000434- Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler.
Martin v. Löwisdb12d452009-05-02 18:52:14 +0000435
Benjamin Petersond2e0c792009-05-01 20:40:59 +0000436- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
437 received a new method, detach(). detach() disconnects the underlying stream
438 from the buffer or text IO and returns it.
439
Mark Dickinson33841c32009-05-01 15:37:04 +0000440- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
441 floats with absolute value over 1e50. Also remove length
442 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
443 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +0000444
Eric Smith741191f2009-05-06 13:08:15 +0000445- Issue #1588: Add complex.__format__. For example,
Eric Smith58a42242009-04-30 01:00:33 +0000446 format(complex(1, 2./3), '.5') now produces a sensible result.
447
Mark Dickinsond3ca5572009-04-29 18:47:07 +0000448- Issue #5864: Fix empty format code formatting for floats so that it
449 never gives more than the requested number of significant digits.
450
Eric Smith6dc46f52009-04-27 20:39:49 +0000451- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
452 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
453
Eric Smithcc32a112009-04-26 21:35:14 +0000454- Issue #5835: Deprecate PyOS_ascii_formatd.
455
Martin v. Löwis71efeb72009-04-26 01:02:07 +0000456- Issue #4971: Fix titlecase for characters that are their own
457 titlecase, but not their own uppercase.
458
Benjamin Peterson193152c2009-04-25 01:08:45 +0000459- Issue #5283: Setting __class__ in __del__ caused a segfault.
460
Mark Dickinsonad476da2009-04-23 19:14:16 +0000461- Issue #5816: complex(repr(z)) now recovers z exactly, even when
462 z involves nans, infs or negative zeros.
463
Mark Dickinson4a16e3a2009-04-23 19:15:48 +0000464- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +0000465
Mark Dickinsone6a076d2009-04-18 11:48:33 +0000466- Issue #1869 (and many duplicates): make round(x, n) correctly
467 rounded for a float x, by using the decimal <-> binary conversions
468 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
469 consistently agrees with format(x, '.2f').
470
Benjamin Petersonae937c02009-04-18 20:54:08 +0000471- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
472 some builtin types.
473
Eric Smith0923d1d2009-04-16 20:16:10 +0000474- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
475
Eric Smith35e84722009-04-16 20:21:28 +0000476- Issue #5515: str.format() type 'n' combined with commas and leading
477 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +0000478
479- Implement PEP 378, Format Specifier for Thousands Separator, for
480 floats.
481
Mark Dickinson3370cce2009-04-17 22:40:53 +0000482- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000483 1e11, not 1e12. This avoids printing 13 significant digits in
484 situations where only 12 of them are correct. Example problem
485 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
486 long time.)
487
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000488- Issue #1580: On most platforms, use a 'short' float repr: for a
489 finite float x, repr(x) now outputs a string based on the shortest
490 sequence of decimal digits that rounds to x. Previous behaviour was
491 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +0000492 Another minor difference is that the new repr switches to
493 exponential notation at 1e16 instead of the previous 1e17; this
494 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +0000495
496 There's a new sys attribute sys.float_repr_style, which takes
497 the value 'short' to indicate that we're using short float repr,
498 and 'legacy' if the short float repr isn't available for one
499 reason or another.
500
501 The float repr change involves incorporating David Gay's 'perfect
502 rounding' code into the Python core (it's in Python/dtoa.c). As a
503 secondary consequence, all string-to-float and float-to-string
504 conversions (including all float formatting operations) will be
505 correctly rounded on these platforms.
506
507 See issue 1580 discussions for details of platforms for which
508 this change does not apply.
509
Benjamin Peterson2808d3c2009-04-15 21:34:27 +0000510- Issue #5759: float() didn't call __float__ on str subclasses.
511
Georg Brandlabc38772009-04-12 15:51:51 +0000512- The string.maketrans() function is deprecated; there is a new static method
513 maketrans() on the bytes and bytearray classes. This removes confusion about
514 the types string.maketrans() is supposed to work with, and mirrors the
515 methods available on the str class.
516
R. David Murraydc6da8a2009-04-09 22:16:43 +0000517- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
518 its clarity and its speed.
519
Matthias Klose091c7b12009-04-07 13:24:27 +0000520- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
521 to avoid compiler warnings.
522
Walter Dörwald8dc33d52009-05-06 14:41:26 +0000523- Issue #3739: The unicode-internal encoder now reports the number of characters
524 consumed like any other encoder (instead of the number of bytes).
525
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000526Installation
527------------
528
529- Issue #5756: Install idle and pydoc with a 3 suffix.
530
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000531Library
532-------
533
Martin v. Löwis403117a2009-05-24 19:19:17 +0000534- Issue #5311: bdist_msi can now build packages that do not depend on a
535 specific Python version.
536
Raymond Hettingereb816952009-05-29 01:22:18 +0000537- Issue #5150: IDLE's format menu now has an option to strip trailing
538 whitespace.
539
Vinay Sajipaffbd872009-06-11 10:11:47 +0000540- Issue #5940: distutils.command.build_clib.check_library_list was not doing
Tarek Ziadédd9f65f2009-05-06 07:26:24 +0000541 the right type checkings anymore.
542
Thomas Heller00cfc372009-05-05 19:04:40 +0000543- Issue #4875: On win32, ctypes.util.find_library does no longer
544 return directories.
545
Georg Brandl243ad662009-05-05 09:00:19 +0000546- Issue #5142: Add the ability to skip modules while stepping to pdb.
547
Georg Brandl991f9202009-05-05 08:31:54 +0000548- Issue #1309567: Fix linecache behavior of stripping subdirectories when
549 looking for files given by a relative filename.
550
Georg Brandleaa84ef2009-05-05 08:14:33 +0000551- Issue #5923: Update the ``turtle`` module to version 1.1, add two new
552 turtle demos in Demo/turtle.
553
Antoine Pitrou3c33e082009-05-04 21:21:36 +0000554- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
555 extracting a file to the root directory.
556
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000557- Issue #5913: os.listdir() should fail for empty path on windows.
558
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000559- Issue #5084: unpickling now interns the attribute names of pickled objects,
560 saving memory and avoiding growth in size of subsequent pickles. Proposal
561 and original patch by Jake McGuire.
562
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000563- The json module now works exclusively with str and not bytes.
564
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000565- Issue #3959: The ipaddr module has been added to the standard library.
566 Contributed by Google.
567
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000568- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
569 error when a named pipe is encountered, rather than blocking infinitely.
570
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000571- Issue #5857: tokenize.tokenize() now returns named tuples.
572
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000573- Issue #4305: ctypes should now build again on mipsel-linux-gnu
574
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000575- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
576 string is already in normalized form, by performing a quick check beforehand.
577 Original patch by Rauli Ruohonen.
578
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000579- Issue #5853: calling a function of the mimetypes module from several threads
580 at once could hit the recursion limit if the mimetypes database hadn't been
581 initialized before.
582
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000583- Issue #5854: Updated __all__ to include some missing names and remove some
584 names which should not be exported.
585
Thomas Heller34596a92009-04-24 20:50:00 +0000586- Issue #3102: All global symbols that the _ctypes extension defines
587 are now prefixed with 'Py' or '_ctypes'.
588
589- Issue #5041: ctypes does now allow pickling wide character.
590
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000591- Issue #5812: For the two-argument form of the Fraction constructor,
592 Fraction(m, n), m and n are permitted to be arbitrary Rational
593 instances.
594
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000595- Issue #5812: Fraction('1e6') is valid: more generally, any string
596 that's valid for float() is now valid for Fraction(), with the
597 exception of strings representing NaNs and infinities.
598
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000599- Issue #5734: BufferedRWPair was poorly tested and had several glaring
600 bugs. Patch by Brian Quinlan.
601
R. David Murray9e94ddf2009-04-13 17:06:33 +0000602- Issue #1161031: fix readwrite select flag handling: POLLPRI now
603 results in a handle_expt_event call, not handle_read_event, and POLLERR
604 and POLLNVAL now call handle_close, not handle_expt_event. Also,
605 dispatcher now has an 'ignore_log_types' attribute for suppressing
606 log messages, which is set to 'warning' by default.
607
Matthias Klosea3d29e82009-04-07 13:13:10 +0000608- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
609 new arguments introduced in 2.5.
610
Walter Dörwald1b08b302009-04-25 14:13:56 +0000611- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
612 makeunicodedata.py and regenerated the Unicode database (This fixes
613 u'\u1d79'.lower() == '\x00').
614
Matthias Klose535336f2009-04-07 13:49:45 +0000615Extension Modules
616-----------------
617
Benjamin Petersone04b6272009-05-04 22:25:21 +0000618- Issue #5881: Remove old undocumented compatibility interfaces in hashlib and
619 pwd.
620
Mark Dickinsonea835e72009-04-19 20:40:33 +0000621- Issue #5463: In struct module, remove deprecated float coercion
622 for integer type codes: struct.pack('L', 0.3) should now raise
623 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
624 The version number has been bumped to 0.3.
625
Matthias Klose535336f2009-04-07 13:49:45 +0000626- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
627 using Berkley-DB.
628
Nick Coghlan47384702009-04-22 16:13:36 +0000629Tests
630-----
631
632- Issue #5354: New test support function import_fresh_module() makes
633 it easy to import both normal and optimised versions of modules.
634 test_heapq and test_warnings have been adjusted to use it, tests for
635 other modules with both C and Python implementations in the stdlib
636 can be adjusted to use it over time.
637
Walter Dörwald4ba80132009-04-25 12:48:43 +0000638- Issue #5837: Certain sequences of calls to set() and unset() for
639 support.EnvironmentVarGuard objects restored the environment variables
640 incorrectly on __exit__.
641
Benjamin Petersonb173f782009-05-05 22:31:58 +0000642C-API
643-----
644
645- Issue #5630: A replacement PyCObject API, PyCapsule, has been added.
646
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000647
Benjamin Petersond1735892009-03-07 18:46:21 +0000648What's New in Python 3.1 alpha 2?
649=================================
650
Benjamin Peterson88f14352009-04-04 21:06:52 +0000651*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000652
653Core and Builtins
654-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000655
Eric Smith1e1d7d22009-04-03 22:25:33 +0000656- Implement PEP 378, Format Specifier for Thousands Separator, for
657 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000658
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000659- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
660
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000661- Issue #5499: The 'c' code for argument parsing functions now only accepts a
662 byte, and the 'C' code only accepts a unicode character.
663
Georg Brandl406b3d82009-04-11 21:24:37 +0000664- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
665 when hitting the recursion limit under certain circumstances.
666
Brett Cannon0759dd62009-04-01 18:13:07 +0000667- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
668
Georg Brandlab6f2f62009-03-31 04:16:10 +0000669- Fix a segfault when running test_exceptions with coverage, caused by
670 insufficient checks in accessors of Exception.__context__.
671
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000672- Issue #5604: non-ASCII characters in module name passed to
673 imp.find_module() were converted to UTF-8 while the path is
674 converted to the default filesystem encoding, causing nonsense.
675
Benjamin Peterson09832742009-03-26 17:15:46 +0000676- Issue #5126: str.isprintable() returned False for space characters.
677
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000678- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
679 the end sys.path, for compatibility with the system install of Python.
680
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000681- Issue #4688: Add a heuristic so that tuples and dicts containing only
682 untrackable objects are not tracked by the garbage collector. This can
683 reduce the size of collections and therefore the garbage collection overhead
684 on long-running programs, depending on their particular use of datatypes.
685
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000686- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
687 improve its performance. Long divisions and remainder operations
688 are now between 50% and 150% faster.
689
Mark Dickinsonbd792642009-03-18 20:06:12 +0000690- Issue #4258: Make it possible to use base 2**30 instead of base
691 2**15 for the internal representation of integers, for performance
692 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
693 --enable-big-digits option to configure, which overrides the
694 default. Add sys.int_info structseq to provide information about
695 the internal format.
696
Mark Dickinson081dfee2009-03-18 14:47:41 +0000697- Issue #4474: PyUnicode_FromWideChar now converts characters outside
698 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
699 and sizeof(Py_UNICODE) == 2.
700
Eric Smith8ec90442009-03-14 12:29:34 +0000701- Issue #5237: Allow auto-numbered fields in str.format(). For
702 example: '{} {}'.format(1, 2) == '1 2'.
703
Antoine Pitrou652e7072009-03-13 19:25:20 +0000704- Issue #5392: when a very low recursion limit was set, the interpreter would
705 abort with a fatal error after the recursion limit was hit twice.
706
Matthias Klose042f1332009-04-04 14:32:42 +0000707- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
708 short file names.
709
Benjamin Petersond1735892009-03-07 18:46:21 +0000710Library
711-------
712
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000713- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000714 mailbox.MH.get_message().
715
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000716- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
717 error substitutions from non-strict codec error callbacks in
718 incrementalencoder and StreamWriter.
719
Georg Brandl33c28812009-04-01 23:07:29 +0000720- Issue #5656: Fix the coverage reporting when running the test suite with
721 the -T argument.
722
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000723- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
724
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000725- Issue #5624: Fix the _winreg module name still used in several modules.
726
Benjamin Petersona1b49012009-03-31 23:11:32 +0000727- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
728
Jesse Nollera9314042009-03-31 22:36:44 +0000729- Issue #5619: Multiprocessing children disobey the debug flag and causes
730 popups on windows buildbots. Patch applied to work around this issue.
731
Jesse Noller32d68c22009-03-31 18:48:42 +0000732- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
733
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000734- Issue #5387: Fixed mmap.move crash by integer overflow.
735
Jesse Nollerf8d00852009-03-31 03:25:07 +0000736- Issue #5261: Patch multiprocessing's semaphore.c to support context
737 manager use: "with multiprocessing.Lock()" works now.
738
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000739- Issue #5236: Change time.strptime() to only take strings. Didn't work with
740 bytes already but the failure was non-obvious.
741
Jesse Noller7af4ef82009-03-30 16:47:15 +0000742- Issue #5177: Multiprocessing's SocketListener class now uses
743 socket.SO_REUSEADDR on all connections so that the user no longer needs
744 to wait 120 seconds for the socket to expire.
745
Benjamin Peterson48e24782009-03-29 13:02:52 +0000746- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
747
Antoine Pitrou66994e12009-03-29 00:45:26 +0000748- Issue #1174606: Calling read() without arguments of an unbounded file
749 (typically /dev/zero under Unix) could crash the interpreter.
750
Benjamin Peterson59406a92009-03-26 17:10:29 +0000751- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
752 io.BufferedRandom have been deprecated for removal in Python 3.2.
753
Lars Gustäbel42e00912009-03-22 20:34:29 +0000754- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
755 forever on incomplete input. That caused tarfile.open() to hang when used
756 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
757 partial bzip2 compressed data.
758
Mark Dickinson79f52032009-03-17 23:12:51 +0000759- Issue #2110: Add support for thousands separator and 'n' type
760 specifier to Decimal.__format__
761
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000762- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
763 '>' alignment characters.
764
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000765- The error detection code in FileIO.close() could fail to reflect the `errno`
766 value, and report it as -1 instead.
767
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000768- Issue #5016: FileIO.seekable() could return False if the file position
769 was negative when truncated to a C int. Patch by Victor Stinner.
770
Mark Dickinsonae681df2009-03-21 10:26:31 +0000771Extension Modules
772-----------------
773
Benjamin Petersone099b372009-04-04 17:09:35 +0000774- Issue #5391: mmap now deals exclusively with bytes.
775
Mark Dickinsonae681df2009-03-21 10:26:31 +0000776- Issue #5463: In struct module, remove deprecated overflow wrapping
777 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000778 struct.error instead of returning b'\xff\xff\xff\xff'. The
779 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
780 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000781
Benjamin Petersond1735892009-03-07 18:46:21 +0000782
Benjamin Petersona58a6262009-03-07 16:34:40 +0000783What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000784================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000785
Benjamin Petersona58a6262009-03-07 16:34:40 +0000786*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000787
788Core and Builtins
789-----------------
790
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000791- The io module has been reimplemented in C for speed.
792
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000793- Give dict views an informative __repr__.
794
Eric Smith5e5c0db2009-02-20 14:25:03 +0000795- Issue #5247: Improve error message when unknown format codes are
796 used when using str.format() with str, int, and float arguments.
797
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000798- Issue #5249: time.strftime returned malformed string when format string
799 contained non ascii character on windows.
800
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000801- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
802 source has already been decoded into str.
803
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000804- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
805 rotating the object pointer by 4 bits to the right.
806
Mark Dickinson87ec0852009-02-09 17:15:59 +0000807- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
808 it now forces its argument to double before testing for infinity.
809
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000810- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
811 returns a non-number type.
812
Benjamin Peterson87618552009-02-08 15:00:52 +0000813- Issue #5182: Removed memoryview.__str__.
814
Mark Dickinsonc008a172009-02-01 13:59:22 +0000815- Issue #1717: Removed builtin cmp() function, dropped tp_compare
816 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000817 the type definition cmpfunc. The tp_compare slot has been renamed
818 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000819
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000820- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000821 were suppressing all exceptions. These include list() and bytearray().
822
Mark Dickinson1124e712009-01-28 21:25:58 +0000823- Issue #4707: round(x, n) now returns an integer if x is an integer.
824 Previously it returned a float.
825
Antoine Pitroub52ec782009-01-25 16:34:23 +0000826- Issue #4753: By enabling a configure option named '--with-computed-gotos'
827 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
828 evaluation loop is compiled with a new dispatch mechanism which gives
829 speedups of up to 20%, depending on the system, on various benchmarks.
830
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000831- Issue #4874: Most builtin decoders now reject unicode input.
832
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000833- Issue #4842: Don't allow trailing 'L' when constructing an integer
834 from a string.
835
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000836- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
837
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000838- Issue #4838: When a module is deallocated, free the memory backing the
839 optional module state data.
840
Mark Dickinson8055afd2009-01-17 10:04:45 +0000841- Issue #4910: Rename nb_long slot to nb_reserved, and change its
842 type to (void *).
843
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000844- Issue #4935: The overflow checking code in the expandtabs() method common
845 to str, bytes and bytearray could be optimized away by the compiler, letting
846 the interpreter segfault instead of raising an error.
847
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000848- Issue #3720: Fix a crash when an iterator modifies its class and removes its
849 __next__ method.
850
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000851- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
852 function no longer attempt to call the __long__ slot to convert an object
853 to an integer. Only the __int__ and __trunc__ slots are examined.
854
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000855- Issue #4893: Use NT threading on CE.
856
Martin v. Löwisec59d042009-01-12 07:59:10 +0000857- Issue #4915: Port sysmodule to Windows CE.
858
Antoine Pitrouab868312009-01-10 15:40:25 +0000859- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
860 common cases are optimized thanks to a dedicated fast path and a moderate
861 amount of loop unrolling.
862
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000863- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
864 collecting the oldest generation) so that allocating lots of objects without
865 destroying them does not show quadratic performance. Based on a proposal by
866 Martin von Löwis at
867 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
868
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000869- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000870 having been closed (for instance, a read() call could return some
871 previously buffered data). Patch by Dmitry Vasiliev.
872
Antoine Pitrou05608432009-01-09 18:53:14 +0000873- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
874 flag to work properly. Furthermore, when specifying -u, the text stdout
875 and stderr streams have line-by-line buffering enabled (the default being
876 to buffer arbitrary chunks of data).
877
Raymond Hettinger35631532009-01-09 03:58:09 +0000878- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
879 instead of ints (reducing its size from 4 to 8 times thereby reducing
880 Python's overall memory).
881
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000882- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
883 an existing .py counterpart, override the co_filename attributes of all
884 code objects if the original filename is obsolete (which can happen if the
885 file has been renamed, moved, or if it is accessed through different paths).
886 Patch by Ziga Seilnacht and Jean-Paul Calderone.
887
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000888- Issue #4580: Fix slicing of memoryviews when the item size is greater than
889 one byte. Also fixes the meaning of len() so that it returns the number of
890 items, rather than the size in bytes.
891
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000892- Issue #4075: Use OutputDebugStringW in Py_FatalError.
893
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000894- Issue #4747: When the terminal does not use utf-8, executing a script with
895 non-ascii characters in its name could fail with a "SyntaxError: None" error.
896
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000897- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000898 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000899
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000900- Issue #3680: Reference cycles created through a dict, set or deque iterator
901 did not get collected.
902
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000903- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
904 where the tp_hash and tp_dict slots are both NULL.
905
Georg Brandlccc47b62008-12-28 11:44:14 +0000906- Issue #4759: None is now allowed as the first argument of
907 bytearray.translate(). It was always allowed for bytes.translate().
908
Skip Montanaro80072cb2008-12-23 03:51:14 +0000909- Added test case to ensure attempts to read from a file opened for writing
910 fail.
911
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000912- Issue #3106: Speedup some comparisons (str/str and int/int).
913
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000914- Issue #2183: Simplify and optimize bytecode for list, dict and set
915 comprehensions. Original patch for list comprehensions by Neal Norwitz.
916
Antoine Pitrou621601a2008-12-17 23:18:19 +0000917- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
918 print elapsed times, not only when some objects are uncollectable /
919 unreachable. Original patch by Neil Schemenauer.
920
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000921- Issue #3439: Add a bit_length method to int.
922
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000923- Issue #2173: When getting device encoding, check that return value of
924 nl_langinfo is not the empty string. This was causing silent build
925 failures on OS X.
926
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000927- Issue #4597: Fixed several opcodes that weren't always propagating
928 exceptions.
929
930- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000931 context manager returns a value that cannot be converted to a bool.
932
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000933- Issue #4445: Replace "sizeof(PyBytesObject)" with
934 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
935 bytes instances. On a typical machine this saves 3 bytes of memory
936 (on average) per allocation of a bytes instance.
937
Christian Heimesa872de52008-12-05 08:26:55 +0000938- Issue #4533: File read operation was dreadfully slow due to a slowly
939 growing read buffer. Fixed by using the same growth rate algorithm as
940 Python 2.x.
941
Antoine Pitrou5504e892008-12-06 21:27:53 +0000942- Issue #4509: Various issues surrounding resize of bytearray objects to
943 which there are buffer exports (e.g. memoryview instances).
944
Georg Brandlf9734072008-12-07 15:30:06 +0000945- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
946 method on file objects with closefd=False. The file descriptor is still
947 kept open but the file object behaves like a closed file. The ``FileIO``
948 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000949
Antoine Pitroubc420402008-12-07 20:14:49 +0000950- Issue #4569: Interpreter crash when mutating a memoryview with an item size
951 larger than 1.
952
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000953- Issue #4748: Lambda generators no longer return a value.
954
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000955- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
956
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000957- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
958 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
959 step. This avoids problems with counting UTF-8 bytes that ignores the effect
960 of using the replace error handler in PyUnicode_DecodeUTF8().
961
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000962Library
963-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000964
Amaury Forgeot d'Arcbc347802009-07-28 22:18:57 +0000965- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
966 opening an empty or very small file.
967
968- Issue #6545: Removed assert statements in distutils.Extension, so the
Tarek Ziadé2f19bb12009-07-22 08:57:28 +0000969 behavior is similar when used with -O.
970
Benjamin Petersonbed7d042009-07-19 21:01:52 +0000971- unittest has been split up into a package. All old names should still work.
972
Tarek Ziadéf8926b22009-07-16 16:18:19 +0000973- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
974 uses the same refactored function to get gcc/ld/dllwrap versions numbers.
975 It's `distutils.util.get_compiler_versions`. Added deprecation warnings
976 for the obsolete get_versions() functions.
977
Alexandre Vassalottie52e3782009-07-17 09:18:18 +0000978- Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list
979
980- Issue #6314: logging: Extra checks on the "level" argument in more places.
981
982- Issue #2622: Fixed an ImportError when importing email.messsage from a
983 standalone application built with py2exe or py2app.
984
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000985- Issue #6455: Fixed test_build_ext under win32.
Tarek Ziadéb7815e32009-07-10 09:14:31 +0000986
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000987- Issue #6377: Enabled the compiler option, and deprecate its usage as an
Tarek Ziadédd07ebb2009-07-06 13:52:17 +0000988 attribute.
989
Tarek Ziadé05bf01a2009-07-04 02:04:21 +0000990- Issue #6413: Fixed the log level in distutils.dist for announce.
991
Tarek Ziadée10d6de2009-07-03 08:33:28 +0000992- Issue #6403: Fixed package path usage in build_ext.
993
Alexandre Vassalottie52e3782009-07-17 09:18:18 +0000994- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
995 unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
996 descriptor errors
997
Vinay Sajipd4fabf42009-07-13 11:28:25 +0000998- Issue #6365: Distutils build_ext inplace mode was copying the compiled
Tarek Ziadé0156f912009-06-29 16:19:22 +0000999 extension in a subdirectory if the extension name had dots.
1000
Vinay Sajipd4fabf42009-07-13 11:28:25 +00001001- Issue #6164: Added an AIX specific linker argument in Distutils
Tarek Ziadé8f480e52009-06-28 21:30:52 +00001002 unixcompiler. Original patch by Sridhar Ratnakumar.
1003
Tarek Ziadé25bd2062009-06-28 21:26:27 +00001004- Issue #6286: Now Distutils upload command is based on urllib2 instead of
1005 httplib, allowing the usage of http_proxy.
1006
Tarek Ziadé5e06a652009-06-16 07:43:42 +00001007- Issue #6287: Added the license field in Distutils documentation.
1008
Tarek Ziadéff543362009-06-11 09:25:41 +00001009- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
1010
Tarek Ziadéabcc3f42009-06-11 08:31:17 +00001011- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
1012 in Makefiles. This prevents compile errors when using syntax like:
1013 `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
1014
Hirokazu Yamamoto2703fd92009-05-29 09:14:04 +00001015- Issue #6131: test_modulefinder leaked when run after test_distutils.
1016 Patch by Hirokazu Yamamoto.
1017
Tarek Ziadé77c8b372009-05-28 13:01:13 +00001018- Issue #6048: Now Distutils uses the tarfile module in archive_util.
1019
Vinay Sajipaffbd872009-06-11 10:11:47 +00001020- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
Tarek Ziadé822eb842009-05-19 16:22:57 +00001021 and tests on pywin32 by Tim Golden.
1022
Tarek Ziadé93fb3aa2009-05-18 12:29:06 +00001023- Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto.
1024
Tarek Ziadéd18a84e2009-05-18 08:07:46 +00001025- Issue #6046: Fixed the library extension when distutils build_ext is used
1026 inplace. Initial patch by Roumen Petrov.
1027
Vinay Sajipaffbd872009-06-11 10:11:47 +00001028- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
Tarek Ziadé5af55c62009-05-16 16:52:13 +00001029 subcommand.
1030
Tarek Ziadé4210c6e2009-05-14 20:20:47 +00001031- Issue #6022: a test file was created in the current working directory by
1032 test_get_outputs in Distutils.
1033
Tarek Ziadéff0e5002009-05-12 17:14:01 +00001034- Issue #5977: distutils build_ext.get_outputs was not taking into account the
1035 inplace option. Initial patch by kxroberto.
1036
Tarek Ziadé06fbee12009-05-10 10:34:01 +00001037- Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken
1038 for old-style extensions.
1039
Tarek Ziadébe5b1b92009-05-09 10:09:11 +00001040- Issue #5976: Fixed Distutils test_check_environ.
1041
Tarek Ziadé5662d3e2009-05-07 21:24:43 +00001042- Issue #5941: Distutils build_clib command was not working anymore because
1043 of an incomplete costumization of the archiver command. Added ARFLAGS in the
1044 Makefile besides AR and make Distutils use it. Original patch by David
1045 Cournapeau.
1046
R. David Murrayb507d2e2009-04-29 15:34:32 +00001047- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
1048
Vinay Sajipaffbd872009-06-11 10:11:47 +00001049- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
Tarek Ziadé81623822009-04-29 08:07:44 +00001050 anymore.
1051
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001052- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +00001053 sysconfig.get_config_vars.
1054
Tarek Ziadé23336082009-04-25 12:39:56 +00001055- Issue #4951: Fixed failure in test_httpservers.
1056
Thomas Hellerd3cfe992009-04-24 20:10:24 +00001057- Issue #5795: Fixed test_distutils failure on Debian ppc.
1058
Tarek Ziadé822e1d42009-04-13 12:37:57 +00001059- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
1060
Georg Brandl1f9fa312009-04-27 16:42:58 +00001061- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
1062 a value in SafeConfigParser.
1063
Tarek Ziadéf396ecf2009-04-11 15:00:43 +00001064- Issue #5732: added a new command in Distutils: check.
1065
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001066- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +00001067 platforms. Initial patch by Paul Moore.
1068
Tarek Ziadéf6370502009-04-05 22:57:21 +00001069- Issue #5095: Added bdist_msi to the list of bdist supported formats.
1070 Initial fix by Steven Bethard.
1071
Tarek Ziadé889b0aa2009-04-05 21:49:36 +00001072- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
1073 Initial fix by Wayne Davison.
1074
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001075- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +00001076
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001077- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +00001078
Brett Cannonf47e84c2009-04-01 16:06:01 +00001079- Issue #1665206 (partially): Move imports in cgitb to the top of the module
1080 instead of performing them in functions. Helps prevent import deadlocking in
1081 threads.
1082
R. David Murraye59482e2009-04-01 03:42:00 +00001083- Issue #2522: locale.format now checks its first argument to ensure it has
1084 been passed only one pattern, avoiding mysterious errors where it appeared
1085 that it was failing to do localization.
1086
Tarek Ziadéb2e36f12009-03-31 22:37:55 +00001087- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
1088 Brandl.
1089
Antoine Pitrou350370c2009-03-14 00:13:13 +00001090- Issue #1222: locale.format() bug when the thousands separator is a space
1091 character.
1092
Tarek Ziadé516db942009-03-11 12:52:00 +00001093- Issue #5472: Fixed distutils.test_util tear down. Original patch by
1094 Tim Golden.
1095
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +00001096- collections.deque() objects now have a read-only attribute called maxlen.
1097
Guilherme Polof45b4cc2009-03-07 02:19:14 +00001098- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
1099 it is has been populated and properly configured in order to prevent
1100 window flashing.
1101
Guilherme Polo56f5be52009-03-07 01:54:57 +00001102- Issue #4792: Prevent a segfault in _tkinter by using the
1103 guaranteed to be safe interp argument given to the PythonCmd in place of
1104 the Tcl interpreter taken from a PythonCmd_ClientData.
1105
1106- Issue #5193: Guarantee that tkinter.Text.search returns a string.
1107
Tarek Ziadé63b64c02009-03-07 00:51:53 +00001108- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
1109 Original patch by Akira Kitada.
1110
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +00001111- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
1112
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +00001113- Issue #5385: Fixed mmap crash after resize failure on windows.
1114
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +00001115- Issue #5179: Fixed subprocess handle leak on failure on windows.
1116
Raymond Hettinger2d32f632009-03-02 21:24:57 +00001117- PEP 372: Added collections.OrderedDict().
1118
Raymond Hettingera4f52b12009-03-02 22:28:31 +00001119- The _asdict() for method for namedtuples now returns an OrderedDict().
1120
Raymond Hettinger0663a1e2009-03-02 23:06:00 +00001121- configparser now defaults to using an ordered dictionary.
1122
Benjamin Petersone0124bd2009-03-09 21:04:33 +00001123- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
1124 import guess_extension`` was used.
1125
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +00001126- Issue #1733986: Fixed mmap crash in accessing elements of second map object
1127 with same tagname but larger size than first map. (Windows)
1128
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +00001129- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
1130 overrun.
1131
Tarek Ziadéf0721222009-02-28 10:16:43 +00001132- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
1133 bdist_rpm command.
1134
1135- Issue #5378: added --quiet option to Distutils bdist_rpm command.
1136
Tarek Ziadé38e3d512009-02-27 12:58:56 +00001137- Issue #5052: make Distutils compatible with 2.3 again.
1138
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +00001139- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
1140 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +00001141
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001142- Issue #5287: Add exception handling around findCaller() call to help out
1143 IronPython.
1144
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +00001145- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
1146 The file was resized to wrong size.
1147
1148- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
1149
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001150- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +00001151 from the package_data and the data_files metadata.
1152
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001153- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +00001154 support.TempdirManager, to avoid writing in the tests directory.
1155
Tarek Ziadé68c50952009-02-13 23:04:17 +00001156- Issue #4524: distutils build_script command failed with --with-suffix=3.
1157 Initial patch by Amaury Forgeot d'Arc.
1158
Tarek Ziadé811d6242009-02-13 22:26:15 +00001159- Issue #2461: added tests for distutils.util
1160
Mark Dickinsonc28ad272009-02-12 17:58:36 +00001161- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
1162 which inherited from numbers.py which did not have __slots__ defined. The
1163 numbers hierarchy now has its own __slots__ declarations.
1164
Antoine Pitroub353c122009-02-11 00:39:14 +00001165- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
1166 encoding.
1167
Thomas Heller465c8022009-02-10 18:59:04 +00001168- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
1169 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
1170
Tarek Ziadé7d5e9872009-02-10 12:36:33 +00001171- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
1172 under NT and OS2. Patch by Philip Jenvey.
1173
Brett Cannonbefb14f2009-02-10 02:10:16 +00001174- Issue #5128: Make compileall properly inspect bytecode to determine if needs
1175 to be recreated. This avoids a timing hole thanks to the old reliance on the
1176 ctime of the files involved.
1177
Guilherme Polob681df42009-02-09 22:33:59 +00001178- Issue #5122: Synchronize tk load failure check to prevent a potential
1179 deadlock.
1180
Benjamin Petersona86f2c02009-02-10 02:41:10 +00001181- Issue #1818: collections.namedtuple() now supports a keyword argument
1182 'rename' which lets invalid fieldnames be automatically converted to
1183 positional names in the form, _1, _2, ...
1184
Guilherme Poloae098992009-02-09 16:44:24 +00001185- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
1186
Nick Coghlan9a1d6e32009-02-08 03:37:27 +00001187- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
1188 public documented method ``ZipImporter.get_filename()``.
1189
Nick Coghlan3f48ae32009-02-08 01:58:26 +00001190- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
1191 the execution of packages by looking for and executing a ``__main__``
1192 submodule when a package name is supplied. Initial patch by Andi
1193 Vajda.
1194
Guilherme Polo491aee22009-02-06 23:16:11 +00001195- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
1196 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
1197 Tkapp_Call when calling from a thread different than the one that created
1198 the Tcl interpreter. Patch by Robert Hancock.
1199
Eric Smith0e5b5622009-02-06 01:32:42 +00001200- Issue #4285: Change sys.version_info to be a named tuple. Patch by
1201 Ross Light.
1202
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001203- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +00001204 environment/Makefile. Patch by Douglas Greiman.
1205
Tarek Ziadé70a74eb2009-02-06 00:38:35 +00001206- Issue #1276768: The verbose option was not used in the code of
1207 distutils.file_util and distutils.dir_util.
1208
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001209- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +00001210 --enabled-shared activated. Initial patch by Dave Peterson.
1211
Guilherme Polo7f423952009-02-02 21:17:09 +00001212- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
1213
Raymond Hettinger85602262009-02-03 04:19:10 +00001214- The shelve module now defaults to pickle protocol 3.
1215
Brett Cannone61426e2009-01-30 01:31:34 +00001216- Fix a bug in the trace module where a bytes object from co_lnotab had its
1217 items being passed through ord().
1218
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +00001219- Issue #2047: shutil.move() could believe that its destination path was
1220 inside its source path if it began with the same letters (e.g. "src" vs.
1221 "src.new").
1222
Guilherme Polo5f238482009-01-28 14:41:10 +00001223- Added the ttk module. See issue #2983: Ttk support for Tkinter.
1224
Raymond Hettinger89e12962009-01-26 02:09:03 +00001225- Removed isSequenceType(), isMappingType, and isNumberType() from the
1226 operator module; use the abstract base classes instead. Also removed
1227 the repeat() function; use mul() instead.
1228
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001229- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +00001230 collections.namedtuple() relied on __name__ being defined.
1231
1232- Backport importlib from Python 3.1. Only the import_module() function has
1233 been backported to help facilitate transitions from 2.7 to 3.1.
1234
Tarek Ziadé0302cf52009-01-26 17:23:20 +00001235- Issue #1885: distutils. When running sdist with --formats=tar,gztar
1236 the tar file was overriden by the gztar one.
1237
Tarek Ziadé4d4456f2009-01-25 18:27:45 +00001238- Issue #4863: distutils.mwerkscompiler has been removed.
1239
Raymond Hettingerd07d9392009-01-27 04:20:44 +00001240- Added a new itertools functions: combinations_with_replacement()
1241 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +00001242
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001243- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +00001244 allowed non-integer arguments.
1245
Jesse Noller41faa542009-01-25 03:45:53 +00001246- Fix and properly document the multiprocessing module's logging
1247 support, expose the internal levels and provide proper usage
1248 examples.
1249
Mark Dickinsoncddcf442009-01-24 21:46:33 +00001250- Issue #1672332: fix unpickling of subnormal floats, which was
1251 producing a ValueError on some platforms.
1252
Martin v. Löwisacbf4612009-01-24 16:19:45 +00001253- Issue #3881: Help Tcl to load even when started through the
1254 unreadable local symlink to "Program Files" on Vista.
1255
Martin v. Löwis59e47792009-01-24 14:10:07 +00001256- Issue #4710: Extract directories properly in the zipfile module;
1257 allow adding directories to a zipfile.
1258
Vinay Sajipb672b6d2009-02-19 12:36:11 +00001259- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +00001260 --without-threads argument. When this occurs, _multiprocessing will
1261 be disabled, and not compiled.
1262
Antoine Pitrou08838b62009-01-21 00:55:13 +00001263- Issue #5008: When a file is opened in append mode with the new IO library,
1264 do an explicit seek to the end of file (so that e.g. tell() returns the
1265 file size rather than 0). This is consistent with the behaviour of the
1266 traditional 2.x file object.
1267
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001268- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
1269 parameter was set.
1270
Mark Dickinson8dd05142009-01-20 20:43:58 +00001271- Issue #4842: Always append a trailing 'L' when pickling longs using
1272 pickle protocol 0. When reading, the 'L' is optional.
1273
Brett Cannonafccd632009-01-20 02:21:27 +00001274- Add the importlib package.
1275
Jesse Noller9a0fc972009-01-18 21:12:58 +00001276- Issue #4301: Patch the logging module to add processName support, remove
1277 _check_logger_class from multiprocessing.
1278
Jesse Noller1cbb17a2009-01-18 19:45:18 +00001279- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001280 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +00001281
Benjamin Peterson9953a8d2009-01-17 04:15:01 +00001282- Issue #4959: inspect.formatargspec now works for keyword only arguments
1283 without defaults.
1284
Jesse Noller6214edd2009-01-19 16:23:53 +00001285- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
1286 for *nix machines for negative handles and large int handles. Without this check
1287 it is possible to segfault the interpreter.
1288
Jesse Nollerb0516a62009-01-18 03:11:38 +00001289- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
1290 in sharedctypes.py.
1291
1292- Issue #1225107: inspect.isclass() returned True for instances with a custom
1293 __getattr__.
1294
Gregory P. Smithde3369f2009-01-12 04:50:11 +00001295- Issue #3826 and #4791: The socket module now closes the underlying socket
1296 appropriately when it is being used via socket.makefile() objects
1297 rather than delaying the close by waiting for garbage collection to do it.
1298
Raymond Hettingerb8baf632009-01-14 02:20:07 +00001299- Issue #1696199: Add collections.Counter() for rapid and convenient
1300 counting.
1301
Antoine Pitrou308705e2009-01-10 16:22:51 +00001302- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
1303
Thomas Heller5e4e4272009-01-08 09:34:20 +00001304- Issue #4867: Fixed a crash in ctypes when passing a string to a
1305 function without defining argtypes.
1306
Antoine Pitrou42db3ef2009-01-04 21:37:59 +00001307- Issue #4272: Add an optional argument to the GzipFile constructor to override
1308 the timestamp in the gzip stream. The default value remains the current time.
1309 The information can be used by e.g. gunzip when decompressing. Patch by
1310 Jacques Frechet.
1311
Mark Dickinson315a20a2009-01-04 21:34:18 +00001312- Restore Python 2.3 compatibility for decimal.py.
1313
Guilherme Polo3f5f8222009-01-03 22:00:39 +00001314- Issue #3638: Remove functions from _tkinter module level that depend on
1315 TkappObject to work with multiple threads.
1316
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001317- Issue #4718: Adapt the wsgiref package so that it actually works with
1318 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +00001319 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
1320
Raymond Hettinger771ed762009-01-03 19:20:32 +00001321- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
1322 to the decimal module.
1323
Georg Brandl3a9b0622009-01-03 22:07:57 +00001324- Fractions.from_float() no longer loses precision for integers too big to
1325 cast as floats.
1326
Mark Dickinsonf9236412009-01-02 23:23:21 +00001327- Issue #4812: add missing underscore prefix to some internal-use-only
1328 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
1329
Georg Brandl1cdd83c2009-04-05 20:24:29 +00001330- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +00001331 did unnecessary work in the common case where no key function was specified.
1332
Georg Brandlb1441c72009-01-03 22:33:39 +00001333- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
1334 the function is not a generator.
1335
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001336- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
1337 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +00001338
Vinay Sajip6268cbc2009-01-21 00:19:28 +00001339- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +00001340 function. Original patch by Thomas Heller.
1341
Martin v. Löwis1f1620e2008-12-29 16:27:13 +00001342- Issue #3767: Convert Tk object to string in tkColorChooser.
1343
Martin v. Löwise354d782008-12-29 16:03:04 +00001344- Issue #3248: Allow placing ScrolledText in a PanedWindow.
1345
Antoine Pitrou5acd41e2008-12-28 14:29:00 +00001346- Issue #4444: Allow assertRaises() to be used as a context handler, so that
1347 the code under test can be written inline if more practical.
1348
Georg Brandldb7b6b92009-01-01 15:53:14 +00001349- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
1350 works as expected in the interactive environment.
1351
Antoine Pitroudb5fe662008-12-27 15:50:40 +00001352- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
1353 Gabriel Genellina.
1354
Antoine Pitrou180a3362008-12-14 16:36:46 +00001355- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
1356 boundary.
1357
Nick Coghlanf088e5e2008-12-14 11:50:48 +00001358- Issue #4223: inspect.getsource() will now correctly display source code
1359 for packages loaded via zipimport (or any other conformant PEP 302
1360 loader). Original patch by Alexander Belopolsky.
1361
1362- Issue #4201: pdb can now access and display source code loaded via
1363 zipimport (or any other conformant PEP 302 loader). Original patch by
1364 Alexander Belopolsky.
1365
1366- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
1367 302 conformant loader) will now work correctly in most cases (they
1368 are still subject to the constraints that exist for all code running
1369 from inside a module loaded via a PEP 302 loader and attempting to
1370 perform IO operations based on __file__). Original patch by
1371 Alexander Belopolsky.
1372
1373- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
1374 allows backporting to maintenance branches. Original patch by
1375 Alexander Belopolsky.
1376
Antoine Pitrou7c59bc62008-12-13 23:20:54 +00001377- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
1378 a non-ASCII letter.
1379
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +00001380- Issue #4616: TarFile.utime(): Restore directory times on Windows.
1381
Benjamin Peterson433f32c2008-12-12 01:25:05 +00001382- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
1383 codec cannot be found. This is for compatibility with the builtin behavior.
1384
Facundo Batista708d5812008-12-11 04:20:07 +00001385- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
1386 give correct results in the case where one argument is a quiet NaN
1387 and the other is a finite number that requires rounding.
1388
Skip Montanaroc1ce2862008-12-06 17:25:02 +00001389- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
1390 libs.
1391
Georg Brandlf9734072008-12-07 15:30:06 +00001392- Added the subprocess.check_call_output() convenience function to get output
1393 from a subprocess on success or raise an exception on error.
1394
1395- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1396 support unusual filenames (such as those containing semi-colons) in
1397 Content-Disposition headers.
1398
1399- Issue #4384: Added logging integration with warnings module using
1400 captureWarnings(). This change includes a NullHandler which does nothing;
1401 it will be of use to library developers who want to avoid the "No handlers
1402 could be found for logger XXX" message which can appear if the library user
1403 doesn't configure logging.
1404
1405- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
1406 exception.
1407
Georg Brandleee31162008-12-07 15:15:22 +00001408- Issue #4529: fix the parser module's validation of try-except-finally
1409 statements.
1410
1411- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
1412 not a malformed option.
1413
1414- Added the subprocess.check_output() convenience function to get output
1415 from a subprocess on success or raise an exception on error.
1416
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +00001417- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
1418 the corresponding tests now pass.
1419
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +00001420- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
1421 it was calling the wrong open() function.
1422
Fred Drake9a0a65b2008-12-04 19:24:50 +00001423- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
1424 support unusual filenames (such as those containing semi-colons) in
1425 Content-Disposition headers.
1426
Matthias Klose2c7e3ee2009-01-10 17:08:25 +00001427- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
1428 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
1429
Benjamin Peterson5c6d7872009-02-06 02:40:07 +00001430- Issue #5104: The socket module now raises OverflowError when 16-bit port and
1431 protocol numbers are supplied outside the allowed 0-65536 range on bind()
1432 and getservbyport().
1433
Jeroen Ruigrok van der Werven0a866942009-05-08 14:18:00 +00001434- Windows locale mapping updated to Vista.
1435
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001436Tools/Demos
1437-----------
1438
Antoine Pitrou8a681222009-02-07 17:13:31 +00001439- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
1440 and make it 2.6-compatible.
1441
Guilherme Poloa7d27972009-01-28 16:06:51 +00001442- Ttk demos added in Demo/tkinter/ttk/
1443
Antoine Pitrou2a013ea2008-12-27 20:39:28 +00001444- Issue #4677: add two list comprehension tests to pybench.
1445
Georg Brandlb1441c72009-01-03 22:33:39 +00001446
1447Build
1448-----
1449
Benjamin Petersonf53eec82009-05-23 19:36:27 +00001450- Issue #6094: Build correctly with Subversion 1.7.
1451
Martin v. Löwis8482ef92009-05-05 16:14:30 +00001452- Issue #5847: Remove -n switch on "Edit with IDLE" menu item.
1453
Antoine Pitrou8966c992009-05-01 21:18:27 +00001454- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
1455 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
1456
Matthias Klose55708cc2009-04-30 08:06:49 +00001457- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
Vinay Sajipaffbd872009-06-11 10:11:47 +00001458 the order that backends for the dbm extension are checked.
Matthias Klose55708cc2009-04-30 08:06:49 +00001459
Matthias Klose906785c2009-02-22 23:18:38 +00001460- Link the shared python library with $(MODLIBS).
1461
Martin v. Löwis11f72102009-02-10 13:13:30 +00001462- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
1463
Martin v. Löwisbc186a82009-02-02 15:32:22 +00001464- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
1465
Martin v. Löwise97637d2009-01-11 09:45:11 +00001466- Issue #4895: Use _strdup on Windows CE.
1467
Georg Brandlb1441c72009-01-03 22:33:39 +00001468- Issue #4472: "configure --enable-shared" now works on OSX
1469
1470- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
1471
1472- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
1473
1474- Issue #4289: Remove Cancel button from AdvancedDlg.
1475
1476- Issue #1656675: Register a drop handler for .py* files on Windows.
1477
1478- Issue #4120: Exclude manifest from extension modules in VS2008.
1479
1480- Issue #4091: Install pythonxy.dll in system32 again.
1481
1482- Issue #4018: Disable "for me" installations on Vista.
1483
1484- Issue #3758: Add ``patchcheck`` build target to .PHONY.
1485
1486- Issue #4204: Fixed module build errors on FreeBSD 4.
1487
1488
1489C-API
1490-----
1491
Sean Reifscheider642d96a2009-08-01 23:55:06 +00001492- Issue #6624: yArg_ParseTuple with "s" format when parsing argument with
1493 NUL: Bogus TypeError detail string.
1494
Mark Dickinson21776072009-02-10 16:13:25 +00001495- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
1496 for negative arguments. Previously, it raised TypeError.
1497
Georg Brandlb1441c72009-01-03 22:33:39 +00001498- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
1499
1500- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
1501 the GIL is released, or owned by another thread.
1502
1503- Issue #4122: On Windows, fix a compilation error when using the
1504 Py_UNICODE_ISSPACE macro in an extension module.
1505
1506
Mark Dickinsone675f082008-12-11 21:56:00 +00001507Extension Modules
1508-----------------
1509
Gregory P. Smith365a1862009-02-12 07:35:29 +00001510- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
1511 supporting objects as input no matter how it was compiled (built in
1512 implementations or external openssl library).
1513
Mark Dickinson29500f62009-01-15 15:36:10 +00001514- Issue #4397: Fix occasional test_socket failure on OS X.
1515
Martin v. Löwisa9b54c72009-01-11 09:30:50 +00001516- Issue #4279: Fix build of parsermodule under Cygwin.
1517
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +00001518- Issue #4751: hashlib now releases the GIL when hashing large buffers
1519 (with a hardwired threshold of 2048 bytes), allowing better parallelization
1520 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
1521
Martin v. Löwis5c88d812009-01-02 20:47:48 +00001522- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
1523
Antoine Pitrou31f30b12009-01-02 17:34:35 +00001524- Issue #4738: Each zlib object now has a separate lock, allowing to compress
1525 or decompress several streams at once on multi-CPU systems. Also, the GIL
1526 is now released when computing the CRC of a large buffer. Patch by ebfe.
1527
Georg Brandlb1441c72009-01-03 22:33:39 +00001528- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
1529
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +00001530- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
1531
Mark Dickinsone675f082008-12-11 21:56:00 +00001532- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
1533 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +00001534
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +00001535- Issue #4583: array.array would not always prohibit resizing when a buffer
1536 has been exported, resulting in an interpreter crash when accessing the
1537 buffer.
1538
Martin v. Löwis841edad2008-11-30 10:36:49 +00001539
Jack Diederiche0cbd692009-04-01 04:27:09 +00001540- Issue #5228: Make functools.partial objects can now be pickled.
1541
Guilherme Polo9de29af2009-01-28 20:40:48 +00001542Tests
1543-----
1544
Antoine Pitrou88909542009-06-29 13:54:42 +00001545- Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running
1546 regression tests in parallel, shortening the total runtime.
1547
Guilherme Polo2a998fa2009-06-21 17:40:07 +00001548- Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to
1549 Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate
1550 the same behaviour as test_ttkguionly (and now also test_tk) which is to
1551 skip the tests if DISPLAY is defined but can't be used.
1552
R. David Murraya21e4ca2009-03-31 23:16:50 +00001553- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001554 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001555 from test support, which does the conversion.
1556
Guilherme Polo9de29af2009-01-28 20:40:48 +00001557- Issue #5083: New 'gui' resource for regrtest.
1558
1559
Brett Cannon7317c1e2008-11-25 19:19:17 +00001560Docs
1561----
1562
Georg Brandl52b92cc2008-05-25 09:43:03 +00001563
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001564**(For information about older versions, consult the HISTORY file.)**