blob: 8d98720172a9e30afd9976283a0d265468c3c7ed [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 Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Martin v. Löwis71efeb72009-04-26 01:02:07 +000015- Issue #4971: Fix titlecase for characters that are their own
16 titlecase, but not their own uppercase.
17
Benjamin Peterson193152c2009-04-25 01:08:45 +000018- Issue #5283: Setting __class__ in __del__ caused a segfault.
19
Mark Dickinsonad476da2009-04-23 19:14:16 +000020- Issue #5816: complex(repr(z)) now recovers z exactly, even when
21 z involves nans, infs or negative zeros.
22
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000023- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000024
Mark Dickinsone6a076d2009-04-18 11:48:33 +000025- Issue #1869 (and many duplicates): make round(x, n) correctly
26 rounded for a float x, by using the decimal <-> binary conversions
27 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
28 consistently agrees with format(x, '.2f').
29
Benjamin Petersonae937c02009-04-18 20:54:08 +000030- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
31 some builtin types.
32
Eric Smith0923d1d2009-04-16 20:16:10 +000033- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
34
Eric Smith35e84722009-04-16 20:21:28 +000035- Issue #5515: str.format() type 'n' combined with commas and leading
36 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000037
38- Implement PEP 378, Format Specifier for Thousands Separator, for
39 floats.
40
Mark Dickinson3370cce2009-04-17 22:40:53 +000041- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000042 1e11, not 1e12. This avoids printing 13 significant digits in
43 situations where only 12 of them are correct. Example problem
44 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
45 long time.)
46
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000047- Issue #1580: On most platforms, use a 'short' float repr: for a
48 finite float x, repr(x) now outputs a string based on the shortest
49 sequence of decimal digits that rounds to x. Previous behaviour was
50 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000051 Another minor difference is that the new repr switches to
52 exponential notation at 1e16 instead of the previous 1e17; this
53 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000054
55 There's a new sys attribute sys.float_repr_style, which takes
56 the value 'short' to indicate that we're using short float repr,
57 and 'legacy' if the short float repr isn't available for one
58 reason or another.
59
60 The float repr change involves incorporating David Gay's 'perfect
61 rounding' code into the Python core (it's in Python/dtoa.c). As a
62 secondary consequence, all string-to-float and float-to-string
63 conversions (including all float formatting operations) will be
64 correctly rounded on these platforms.
65
66 See issue 1580 discussions for details of platforms for which
67 this change does not apply.
68
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000069- Issue #5759: float() didn't call __float__ on str subclasses.
70
Georg Brandlabc38772009-04-12 15:51:51 +000071- The string.maketrans() function is deprecated; there is a new static method
72 maketrans() on the bytes and bytearray classes. This removes confusion about
73 the types string.maketrans() is supposed to work with, and mirrors the
74 methods available on the str class.
75
R. David Murraydc6da8a2009-04-09 22:16:43 +000076- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
77 its clarity and its speed.
78
Matthias Klose091c7b12009-04-07 13:24:27 +000079- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
80 to avoid compiler warnings.
81
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000082Installation
83------------
84
85- Issue #5756: Install idle and pydoc with a 3 suffix.
86
Benjamin Petersonbd35b032009-04-04 23:16:41 +000087Library
88-------
89
Thomas Heller34596a92009-04-24 20:50:00 +000090- Issue #3102: All global symbols that the _ctypes extension defines
91 are now prefixed with 'Py' or '_ctypes'.
92
93- Issue #5041: ctypes does now allow pickling wide character.
94
Mark Dickinsond4d95f82009-04-24 14:06:19 +000095- Issue #5812: For the two-argument form of the Fraction constructor,
96 Fraction(m, n), m and n are permitted to be arbitrary Rational
97 instances.
98
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +000099- Issue #5812: Fraction('1e6') is valid: more generally, any string
100 that's valid for float() is now valid for Fraction(), with the
101 exception of strings representing NaNs and infinities.
102
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000103- Issue #5734: BufferedRWPair was poorly tested and had several glaring
104 bugs. Patch by Brian Quinlan.
105
R. David Murray9e94ddf2009-04-13 17:06:33 +0000106- Issue #1161031: fix readwrite select flag handling: POLLPRI now
107 results in a handle_expt_event call, not handle_read_event, and POLLERR
108 and POLLNVAL now call handle_close, not handle_expt_event. Also,
109 dispatcher now has an 'ignore_log_types' attribute for suppressing
110 log messages, which is set to 'warning' by default.
111
Matthias Klosea3d29e82009-04-07 13:13:10 +0000112- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
113 new arguments introduced in 2.5.
114
Walter Dörwald1b08b302009-04-25 14:13:56 +0000115- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
116 makeunicodedata.py and regenerated the Unicode database (This fixes
117 u'\u1d79'.lower() == '\x00').
118
Matthias Klose535336f2009-04-07 13:49:45 +0000119Extension Modules
120-----------------
121
Mark Dickinsonea835e72009-04-19 20:40:33 +0000122- Issue #5463: In struct module, remove deprecated float coercion
123 for integer type codes: struct.pack('L', 0.3) should now raise
124 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
125 The version number has been bumped to 0.3.
126
Matthias Klose535336f2009-04-07 13:49:45 +0000127- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
128 using Berkley-DB.
129
Nick Coghlan47384702009-04-22 16:13:36 +0000130Tests
131-----
132
133- Issue #5354: New test support function import_fresh_module() makes
134 it easy to import both normal and optimised versions of modules.
135 test_heapq and test_warnings have been adjusted to use it, tests for
136 other modules with both C and Python implementations in the stdlib
137 can be adjusted to use it over time.
138
Walter Dörwald4ba80132009-04-25 12:48:43 +0000139- Issue #5837: Certain sequences of calls to set() and unset() for
140 support.EnvironmentVarGuard objects restored the environment variables
141 incorrectly on __exit__.
142
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000143
Benjamin Petersond1735892009-03-07 18:46:21 +0000144What's New in Python 3.1 alpha 2?
145=================================
146
Benjamin Peterson88f14352009-04-04 21:06:52 +0000147*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000148
149Core and Builtins
150-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000151
Eric Smith1e1d7d22009-04-03 22:25:33 +0000152- Implement PEP 378, Format Specifier for Thousands Separator, for
153 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000154
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000155- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
156
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000157- Issue #5499: The 'c' code for argument parsing functions now only accepts a
158 byte, and the 'C' code only accepts a unicode character.
159
Georg Brandl406b3d82009-04-11 21:24:37 +0000160- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
161 when hitting the recursion limit under certain circumstances.
162
Brett Cannon0759dd62009-04-01 18:13:07 +0000163- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
164
Georg Brandlab6f2f62009-03-31 04:16:10 +0000165- Fix a segfault when running test_exceptions with coverage, caused by
166 insufficient checks in accessors of Exception.__context__.
167
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000168- Issue #5604: non-ASCII characters in module name passed to
169 imp.find_module() were converted to UTF-8 while the path is
170 converted to the default filesystem encoding, causing nonsense.
171
Benjamin Peterson09832742009-03-26 17:15:46 +0000172- Issue #5126: str.isprintable() returned False for space characters.
173
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000174- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
175 the end sys.path, for compatibility with the system install of Python.
176
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000177- Issue #4688: Add a heuristic so that tuples and dicts containing only
178 untrackable objects are not tracked by the garbage collector. This can
179 reduce the size of collections and therefore the garbage collection overhead
180 on long-running programs, depending on their particular use of datatypes.
181
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000182- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
183 improve its performance. Long divisions and remainder operations
184 are now between 50% and 150% faster.
185
Mark Dickinsonbd792642009-03-18 20:06:12 +0000186- Issue #4258: Make it possible to use base 2**30 instead of base
187 2**15 for the internal representation of integers, for performance
188 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
189 --enable-big-digits option to configure, which overrides the
190 default. Add sys.int_info structseq to provide information about
191 the internal format.
192
Mark Dickinson081dfee2009-03-18 14:47:41 +0000193- Issue #4474: PyUnicode_FromWideChar now converts characters outside
194 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
195 and sizeof(Py_UNICODE) == 2.
196
Eric Smith8ec90442009-03-14 12:29:34 +0000197- Issue #5237: Allow auto-numbered fields in str.format(). For
198 example: '{} {}'.format(1, 2) == '1 2'.
199
Antoine Pitrou652e7072009-03-13 19:25:20 +0000200- Issue #5392: when a very low recursion limit was set, the interpreter would
201 abort with a fatal error after the recursion limit was hit twice.
202
Matthias Klose042f1332009-04-04 14:32:42 +0000203- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
204 short file names.
205
Benjamin Petersond1735892009-03-07 18:46:21 +0000206Library
207-------
208
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000209- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000210 mailbox.MH.get_message().
211
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000212- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
213 error substitutions from non-strict codec error callbacks in
214 incrementalencoder and StreamWriter.
215
Georg Brandl33c28812009-04-01 23:07:29 +0000216- Issue #5656: Fix the coverage reporting when running the test suite with
217 the -T argument.
218
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000219- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
220
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000221- Issue #5624: Fix the _winreg module name still used in several modules.
222
Benjamin Petersona1b49012009-03-31 23:11:32 +0000223- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
224
Jesse Nollera9314042009-03-31 22:36:44 +0000225- Issue #5619: Multiprocessing children disobey the debug flag and causes
226 popups on windows buildbots. Patch applied to work around this issue.
227
Jesse Noller32d68c22009-03-31 18:48:42 +0000228- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
229
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000230- Issue #5387: Fixed mmap.move crash by integer overflow.
231
Jesse Nollerf8d00852009-03-31 03:25:07 +0000232- Issue #5261: Patch multiprocessing's semaphore.c to support context
233 manager use: "with multiprocessing.Lock()" works now.
234
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000235- Issue #5236: Change time.strptime() to only take strings. Didn't work with
236 bytes already but the failure was non-obvious.
237
Jesse Noller7af4ef82009-03-30 16:47:15 +0000238- Issue #5177: Multiprocessing's SocketListener class now uses
239 socket.SO_REUSEADDR on all connections so that the user no longer needs
240 to wait 120 seconds for the socket to expire.
241
Benjamin Peterson48e24782009-03-29 13:02:52 +0000242- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
243
Antoine Pitrou66994e12009-03-29 00:45:26 +0000244- Issue #1174606: Calling read() without arguments of an unbounded file
245 (typically /dev/zero under Unix) could crash the interpreter.
246
Benjamin Peterson59406a92009-03-26 17:10:29 +0000247- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
248 io.BufferedRandom have been deprecated for removal in Python 3.2.
249
Lars Gustäbel42e00912009-03-22 20:34:29 +0000250- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
251 forever on incomplete input. That caused tarfile.open() to hang when used
252 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
253 partial bzip2 compressed data.
254
Mark Dickinson79f52032009-03-17 23:12:51 +0000255- Issue #2110: Add support for thousands separator and 'n' type
256 specifier to Decimal.__format__
257
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000258- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
259 '>' alignment characters.
260
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000261- The error detection code in FileIO.close() could fail to reflect the `errno`
262 value, and report it as -1 instead.
263
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000264- Issue #5016: FileIO.seekable() could return False if the file position
265 was negative when truncated to a C int. Patch by Victor Stinner.
266
Mark Dickinsonae681df2009-03-21 10:26:31 +0000267Extension Modules
268-----------------
269
Benjamin Petersone099b372009-04-04 17:09:35 +0000270- Issue #5391: mmap now deals exclusively with bytes.
271
Mark Dickinsonae681df2009-03-21 10:26:31 +0000272- Issue #5463: In struct module, remove deprecated overflow wrapping
273 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000274 struct.error instead of returning b'\xff\xff\xff\xff'. The
275 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
276 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000277
Benjamin Petersond1735892009-03-07 18:46:21 +0000278
Benjamin Petersona58a6262009-03-07 16:34:40 +0000279What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000280================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000281
Benjamin Petersona58a6262009-03-07 16:34:40 +0000282*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000283
284Core and Builtins
285-----------------
286
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000287- The io module has been reimplemented in C for speed.
288
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000289- Give dict views an informative __repr__.
290
Eric Smith5e5c0db2009-02-20 14:25:03 +0000291- Issue #5247: Improve error message when unknown format codes are
292 used when using str.format() with str, int, and float arguments.
293
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000294- Issue #5249: time.strftime returned malformed string when format string
295 contained non ascii character on windows.
296
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000297- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
298 source has already been decoded into str.
299
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000300- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
301 rotating the object pointer by 4 bits to the right.
302
Mark Dickinson87ec0852009-02-09 17:15:59 +0000303- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
304 it now forces its argument to double before testing for infinity.
305
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000306- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
307 returns a non-number type.
308
Benjamin Peterson87618552009-02-08 15:00:52 +0000309- Issue #5182: Removed memoryview.__str__.
310
Mark Dickinsonc008a172009-02-01 13:59:22 +0000311- Issue #1717: Removed builtin cmp() function, dropped tp_compare
312 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000313 the type definition cmpfunc. The tp_compare slot has been renamed
314 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000315
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000316- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000317 were suppressing all exceptions. These include list() and bytearray().
318
Mark Dickinson1124e712009-01-28 21:25:58 +0000319- Issue #4707: round(x, n) now returns an integer if x is an integer.
320 Previously it returned a float.
321
Antoine Pitroub52ec782009-01-25 16:34:23 +0000322- Issue #4753: By enabling a configure option named '--with-computed-gotos'
323 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
324 evaluation loop is compiled with a new dispatch mechanism which gives
325 speedups of up to 20%, depending on the system, on various benchmarks.
326
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000327- Issue #4874: Most builtin decoders now reject unicode input.
328
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000329- Issue #4842: Don't allow trailing 'L' when constructing an integer
330 from a string.
331
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000332- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
333
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000334- Issue #4838: When a module is deallocated, free the memory backing the
335 optional module state data.
336
Mark Dickinson8055afd2009-01-17 10:04:45 +0000337- Issue #4910: Rename nb_long slot to nb_reserved, and change its
338 type to (void *).
339
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000340- Issue #4935: The overflow checking code in the expandtabs() method common
341 to str, bytes and bytearray could be optimized away by the compiler, letting
342 the interpreter segfault instead of raising an error.
343
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000344- Issue #3720: Fix a crash when an iterator modifies its class and removes its
345 __next__ method.
346
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000347- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
348 function no longer attempt to call the __long__ slot to convert an object
349 to an integer. Only the __int__ and __trunc__ slots are examined.
350
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000351- Issue #4893: Use NT threading on CE.
352
Martin v. Löwisec59d042009-01-12 07:59:10 +0000353- Issue #4915: Port sysmodule to Windows CE.
354
Antoine Pitrouab868312009-01-10 15:40:25 +0000355- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
356 common cases are optimized thanks to a dedicated fast path and a moderate
357 amount of loop unrolling.
358
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000359- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
360 collecting the oldest generation) so that allocating lots of objects without
361 destroying them does not show quadratic performance. Based on a proposal by
362 Martin von Löwis at
363 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
364
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000365- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000366 having been closed (for instance, a read() call could return some
367 previously buffered data). Patch by Dmitry Vasiliev.
368
Antoine Pitrou05608432009-01-09 18:53:14 +0000369- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
370 flag to work properly. Furthermore, when specifying -u, the text stdout
371 and stderr streams have line-by-line buffering enabled (the default being
372 to buffer arbitrary chunks of data).
373
Raymond Hettinger35631532009-01-09 03:58:09 +0000374- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
375 instead of ints (reducing its size from 4 to 8 times thereby reducing
376 Python's overall memory).
377
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000378- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
379 an existing .py counterpart, override the co_filename attributes of all
380 code objects if the original filename is obsolete (which can happen if the
381 file has been renamed, moved, or if it is accessed through different paths).
382 Patch by Ziga Seilnacht and Jean-Paul Calderone.
383
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000384- Issue #4580: Fix slicing of memoryviews when the item size is greater than
385 one byte. Also fixes the meaning of len() so that it returns the number of
386 items, rather than the size in bytes.
387
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000388- Issue #4075: Use OutputDebugStringW in Py_FatalError.
389
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000390- Issue #4747: When the terminal does not use utf-8, executing a script with
391 non-ascii characters in its name could fail with a "SyntaxError: None" error.
392
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000393- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000394 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000395
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000396- Issue #3680: Reference cycles created through a dict, set or deque iterator
397 did not get collected.
398
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000399- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
400 where the tp_hash and tp_dict slots are both NULL.
401
Georg Brandlccc47b62008-12-28 11:44:14 +0000402- Issue #4759: None is now allowed as the first argument of
403 bytearray.translate(). It was always allowed for bytes.translate().
404
Skip Montanaro80072cb2008-12-23 03:51:14 +0000405- Added test case to ensure attempts to read from a file opened for writing
406 fail.
407
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000408- Issue #3106: Speedup some comparisons (str/str and int/int).
409
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000410- Issue #2183: Simplify and optimize bytecode for list, dict and set
411 comprehensions. Original patch for list comprehensions by Neal Norwitz.
412
Antoine Pitrou621601a2008-12-17 23:18:19 +0000413- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
414 print elapsed times, not only when some objects are uncollectable /
415 unreachable. Original patch by Neil Schemenauer.
416
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000417- Issue #3439: Add a bit_length method to int.
418
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000419- Issue #2173: When getting device encoding, check that return value of
420 nl_langinfo is not the empty string. This was causing silent build
421 failures on OS X.
422
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000423- Issue #4597: Fixed several opcodes that weren't always propagating
424 exceptions.
425
426- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000427 context manager returns a value that cannot be converted to a bool.
428
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000429- Issue #4445: Replace "sizeof(PyBytesObject)" with
430 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
431 bytes instances. On a typical machine this saves 3 bytes of memory
432 (on average) per allocation of a bytes instance.
433
Christian Heimesa872de52008-12-05 08:26:55 +0000434- Issue #4533: File read operation was dreadfully slow due to a slowly
435 growing read buffer. Fixed by using the same growth rate algorithm as
436 Python 2.x.
437
Antoine Pitrou5504e892008-12-06 21:27:53 +0000438- Issue #4509: Various issues surrounding resize of bytearray objects to
439 which there are buffer exports (e.g. memoryview instances).
440
Georg Brandlf9734072008-12-07 15:30:06 +0000441- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
442 method on file objects with closefd=False. The file descriptor is still
443 kept open but the file object behaves like a closed file. The ``FileIO``
444 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000445
Antoine Pitroubc420402008-12-07 20:14:49 +0000446- Issue #4569: Interpreter crash when mutating a memoryview with an item size
447 larger than 1.
448
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000449- Issue #4748: Lambda generators no longer return a value.
450
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000451- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
452
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000453Library
454-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000455
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000456- Issue #5810: Fixed Distutils test_build_scripts so it uses
457 sysconfig.get_config_vars.
458
Tarek Ziadé23336082009-04-25 12:39:56 +0000459- Issue #4951: Fixed failure in test_httpservers.
460
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000461- Issue #5795: Fixed test_distutils failure on Debian ppc.
462
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000463- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
464
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000465- Issue #5732: added a new command in Distutils: check.
466
Tarek Ziadéa6191802009-04-09 22:02:39 +0000467- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
468 platforms. Initial patch by Paul Moore.
469
Tarek Ziadéf6370502009-04-05 22:57:21 +0000470- Issue #5095: Added bdist_msi to the list of bdist supported formats.
471 Initial fix by Steven Bethard.
472
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000473- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
474 Initial fix by Wayne Davison.
475
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000476- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000477
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000478- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000479
Brett Cannonf47e84c2009-04-01 16:06:01 +0000480- Issue #1665206 (partially): Move imports in cgitb to the top of the module
481 instead of performing them in functions. Helps prevent import deadlocking in
482 threads.
483
R. David Murraye59482e2009-04-01 03:42:00 +0000484- Issue #2522: locale.format now checks its first argument to ensure it has
485 been passed only one pattern, avoiding mysterious errors where it appeared
486 that it was failing to do localization.
487
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000488- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
489 Brandl.
490
Antoine Pitrou350370c2009-03-14 00:13:13 +0000491- Issue #1222: locale.format() bug when the thousands separator is a space
492 character.
493
Tarek Ziadé516db942009-03-11 12:52:00 +0000494- Issue #5472: Fixed distutils.test_util tear down. Original patch by
495 Tim Golden.
496
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000497- collections.deque() objects now have a read-only attribute called maxlen.
498
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000499- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
500 it is has been populated and properly configured in order to prevent
501 window flashing.
502
Guilherme Polo56f5be52009-03-07 01:54:57 +0000503- Issue #4792: Prevent a segfault in _tkinter by using the
504 guaranteed to be safe interp argument given to the PythonCmd in place of
505 the Tcl interpreter taken from a PythonCmd_ClientData.
506
507- Issue #5193: Guarantee that tkinter.Text.search returns a string.
508
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000509- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
510 Original patch by Akira Kitada.
511
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000512- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
513
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000514- Issue #5385: Fixed mmap crash after resize failure on windows.
515
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000516- Issue #5179: Fixed subprocess handle leak on failure on windows.
517
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000518- PEP 372: Added collections.OrderedDict().
519
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000520- The _asdict() for method for namedtuples now returns an OrderedDict().
521
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000522- configparser now defaults to using an ordered dictionary.
523
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000524- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
525 import guess_extension`` was used.
526
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000527- Issue #1733986: Fixed mmap crash in accessing elements of second map object
528 with same tagname but larger size than first map. (Windows)
529
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000530- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
531 overrun.
532
Tarek Ziadéf0721222009-02-28 10:16:43 +0000533- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
534 bdist_rpm command.
535
536- Issue #5378: added --quiet option to Distutils bdist_rpm command.
537
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000538- Issue #5052: make Distutils compatible with 2.3 again.
539
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000540- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
541 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000542
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000543- Issue #5287: Add exception handling around findCaller() call to help out
544 IronPython.
545
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000546- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
547 The file was resized to wrong size.
548
549- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
550
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000551- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000552 from the package_data and the data_files metadata.
553
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000554- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000555 support.TempdirManager, to avoid writing in the tests directory.
556
Tarek Ziadé68c50952009-02-13 23:04:17 +0000557- Issue #4524: distutils build_script command failed with --with-suffix=3.
558 Initial patch by Amaury Forgeot d'Arc.
559
Tarek Ziadé811d6242009-02-13 22:26:15 +0000560- Issue #2461: added tests for distutils.util
561
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000562- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
563 which inherited from numbers.py which did not have __slots__ defined. The
564 numbers hierarchy now has its own __slots__ declarations.
565
Antoine Pitroub353c122009-02-11 00:39:14 +0000566- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
567 encoding.
568
Thomas Heller465c8022009-02-10 18:59:04 +0000569- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
570 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
571
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000572- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
573 under NT and OS2. Patch by Philip Jenvey.
574
Brett Cannonbefb14f2009-02-10 02:10:16 +0000575- Issue #5128: Make compileall properly inspect bytecode to determine if needs
576 to be recreated. This avoids a timing hole thanks to the old reliance on the
577 ctime of the files involved.
578
Guilherme Polob681df42009-02-09 22:33:59 +0000579- Issue #5122: Synchronize tk load failure check to prevent a potential
580 deadlock.
581
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000582- Issue #1818: collections.namedtuple() now supports a keyword argument
583 'rename' which lets invalid fieldnames be automatically converted to
584 positional names in the form, _1, _2, ...
585
Guilherme Poloae098992009-02-09 16:44:24 +0000586- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
587
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000588- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
589 public documented method ``ZipImporter.get_filename()``.
590
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000591- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
592 the execution of packages by looking for and executing a ``__main__``
593 submodule when a package name is supplied. Initial patch by Andi
594 Vajda.
595
Guilherme Polo491aee22009-02-06 23:16:11 +0000596- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
597 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
598 Tkapp_Call when calling from a thread different than the one that created
599 the Tcl interpreter. Patch by Robert Hancock.
600
Eric Smith0e5b5622009-02-06 01:32:42 +0000601- Issue #4285: Change sys.version_info to be a named tuple. Patch by
602 Ross Light.
603
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000604- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000605 environment/Makefile. Patch by Douglas Greiman.
606
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000607- Issue #1276768: The verbose option was not used in the code of
608 distutils.file_util and distutils.dir_util.
609
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000610- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000611 --enabled-shared activated. Initial patch by Dave Peterson.
612
Guilherme Polo7f423952009-02-02 21:17:09 +0000613- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
614
Raymond Hettinger85602262009-02-03 04:19:10 +0000615- The shelve module now defaults to pickle protocol 3.
616
Brett Cannone61426e2009-01-30 01:31:34 +0000617- Fix a bug in the trace module where a bytes object from co_lnotab had its
618 items being passed through ord().
619
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000620- Issue #2047: shutil.move() could believe that its destination path was
621 inside its source path if it began with the same letters (e.g. "src" vs.
622 "src.new").
623
Guilherme Polo5f238482009-01-28 14:41:10 +0000624- Added the ttk module. See issue #2983: Ttk support for Tkinter.
625
Raymond Hettinger89e12962009-01-26 02:09:03 +0000626- Removed isSequenceType(), isMappingType, and isNumberType() from the
627 operator module; use the abstract base classes instead. Also removed
628 the repeat() function; use mul() instead.
629
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000630- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000631 collections.namedtuple() relied on __name__ being defined.
632
633- Backport importlib from Python 3.1. Only the import_module() function has
634 been backported to help facilitate transitions from 2.7 to 3.1.
635
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000636- Issue #1885: distutils. When running sdist with --formats=tar,gztar
637 the tar file was overriden by the gztar one.
638
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000639- Issue #4863: distutils.mwerkscompiler has been removed.
640
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000641- Added a new itertools functions: combinations_with_replacement()
642 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000643
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000644- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000645 allowed non-integer arguments.
646
Jesse Noller41faa542009-01-25 03:45:53 +0000647- Fix and properly document the multiprocessing module's logging
648 support, expose the internal levels and provide proper usage
649 examples.
650
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000651- Issue #1672332: fix unpickling of subnormal floats, which was
652 producing a ValueError on some platforms.
653
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000654- Issue #3881: Help Tcl to load even when started through the
655 unreadable local symlink to "Program Files" on Vista.
656
Martin v. Löwis59e47792009-01-24 14:10:07 +0000657- Issue #4710: Extract directories properly in the zipfile module;
658 allow adding directories to a zipfile.
659
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000660- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000661 --without-threads argument. When this occurs, _multiprocessing will
662 be disabled, and not compiled.
663
Antoine Pitrou08838b62009-01-21 00:55:13 +0000664- Issue #5008: When a file is opened in append mode with the new IO library,
665 do an explicit seek to the end of file (so that e.g. tell() returns the
666 file size rather than 0). This is consistent with the behaviour of the
667 traditional 2.x file object.
668
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000669- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
670 parameter was set.
671
Mark Dickinson8dd05142009-01-20 20:43:58 +0000672- Issue #4842: Always append a trailing 'L' when pickling longs using
673 pickle protocol 0. When reading, the 'L' is optional.
674
Brett Cannonafccd632009-01-20 02:21:27 +0000675- Add the importlib package.
676
Jesse Noller9a0fc972009-01-18 21:12:58 +0000677- Issue #4301: Patch the logging module to add processName support, remove
678 _check_logger_class from multiprocessing.
679
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000680- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000681 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000682
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000683- Issue #4959: inspect.formatargspec now works for keyword only arguments
684 without defaults.
685
Jesse Noller6214edd2009-01-19 16:23:53 +0000686- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
687 for *nix machines for negative handles and large int handles. Without this check
688 it is possible to segfault the interpreter.
689
Jesse Nollerb0516a62009-01-18 03:11:38 +0000690- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
691 in sharedctypes.py.
692
693- Issue #1225107: inspect.isclass() returned True for instances with a custom
694 __getattr__.
695
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000696- Issue #3826 and #4791: The socket module now closes the underlying socket
697 appropriately when it is being used via socket.makefile() objects
698 rather than delaying the close by waiting for garbage collection to do it.
699
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000700- Issue #1696199: Add collections.Counter() for rapid and convenient
701 counting.
702
Antoine Pitrou308705e2009-01-10 16:22:51 +0000703- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
704
Thomas Heller5e4e4272009-01-08 09:34:20 +0000705- Issue #4867: Fixed a crash in ctypes when passing a string to a
706 function without defining argtypes.
707
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000708- Issue #4272: Add an optional argument to the GzipFile constructor to override
709 the timestamp in the gzip stream. The default value remains the current time.
710 The information can be used by e.g. gunzip when decompressing. Patch by
711 Jacques Frechet.
712
Mark Dickinson315a20a2009-01-04 21:34:18 +0000713- Restore Python 2.3 compatibility for decimal.py.
714
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000715- Issue #3638: Remove functions from _tkinter module level that depend on
716 TkappObject to work with multiple threads.
717
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000718- Issue #4718: Adapt the wsgiref package so that it actually works with
719 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000720 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
721
Raymond Hettinger771ed762009-01-03 19:20:32 +0000722- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
723 to the decimal module.
724
Georg Brandl3a9b0622009-01-03 22:07:57 +0000725- Fractions.from_float() no longer loses precision for integers too big to
726 cast as floats.
727
Mark Dickinsonf9236412009-01-02 23:23:21 +0000728- Issue #4812: add missing underscore prefix to some internal-use-only
729 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
730
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000731- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000732 did unnecessary work in the common case where no key function was specified.
733
Georg Brandlb1441c72009-01-03 22:33:39 +0000734- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
735 the function is not a generator.
736
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000737- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
738 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000739
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000740- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000741 function. Original patch by Thomas Heller.
742
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000743- Issue #3767: Convert Tk object to string in tkColorChooser.
744
Martin v. Löwise354d782008-12-29 16:03:04 +0000745- Issue #3248: Allow placing ScrolledText in a PanedWindow.
746
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000747- Issue #4444: Allow assertRaises() to be used as a context handler, so that
748 the code under test can be written inline if more practical.
749
Georg Brandldb7b6b92009-01-01 15:53:14 +0000750- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
751 works as expected in the interactive environment.
752
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000753- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
754 Gabriel Genellina.
755
Antoine Pitrou180a3362008-12-14 16:36:46 +0000756- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
757 boundary.
758
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000759- Issue #4223: inspect.getsource() will now correctly display source code
760 for packages loaded via zipimport (or any other conformant PEP 302
761 loader). Original patch by Alexander Belopolsky.
762
763- Issue #4201: pdb can now access and display source code loaded via
764 zipimport (or any other conformant PEP 302 loader). Original patch by
765 Alexander Belopolsky.
766
767- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
768 302 conformant loader) will now work correctly in most cases (they
769 are still subject to the constraints that exist for all code running
770 from inside a module loaded via a PEP 302 loader and attempting to
771 perform IO operations based on __file__). Original patch by
772 Alexander Belopolsky.
773
774- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
775 allows backporting to maintenance branches. Original patch by
776 Alexander Belopolsky.
777
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000778- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
779 a non-ASCII letter.
780
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000781- Issue #4616: TarFile.utime(): Restore directory times on Windows.
782
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000783- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
784 codec cannot be found. This is for compatibility with the builtin behavior.
785
Facundo Batista708d5812008-12-11 04:20:07 +0000786- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
787 give correct results in the case where one argument is a quiet NaN
788 and the other is a finite number that requires rounding.
789
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000790- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
791 libs.
792
Georg Brandlf9734072008-12-07 15:30:06 +0000793- Added the subprocess.check_call_output() convenience function to get output
794 from a subprocess on success or raise an exception on error.
795
796- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
797 support unusual filenames (such as those containing semi-colons) in
798 Content-Disposition headers.
799
800- Issue #4384: Added logging integration with warnings module using
801 captureWarnings(). This change includes a NullHandler which does nothing;
802 it will be of use to library developers who want to avoid the "No handlers
803 could be found for logger XXX" message which can appear if the library user
804 doesn't configure logging.
805
806- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
807 exception.
808
Georg Brandleee31162008-12-07 15:15:22 +0000809- Issue #4529: fix the parser module's validation of try-except-finally
810 statements.
811
812- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
813 not a malformed option.
814
815- Added the subprocess.check_output() convenience function to get output
816 from a subprocess on success or raise an exception on error.
817
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000818- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
819 the corresponding tests now pass.
820
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000821- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
822 it was calling the wrong open() function.
823
Fred Drake9a0a65b2008-12-04 19:24:50 +0000824- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
825 support unusual filenames (such as those containing semi-colons) in
826 Content-Disposition headers.
827
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000828- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
829 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
830
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000831- Issue #5104: The socket module now raises OverflowError when 16-bit port and
832 protocol numbers are supplied outside the allowed 0-65536 range on bind()
833 and getservbyport().
834
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000835Tools/Demos
836-----------
837
Antoine Pitrou8a681222009-02-07 17:13:31 +0000838- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
839 and make it 2.6-compatible.
840
Guilherme Poloa7d27972009-01-28 16:06:51 +0000841- Ttk demos added in Demo/tkinter/ttk/
842
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000843- Issue #4677: add two list comprehension tests to pybench.
844
Georg Brandlb1441c72009-01-03 22:33:39 +0000845
846Build
847-----
848
Matthias Klose906785c2009-02-22 23:18:38 +0000849- Link the shared python library with $(MODLIBS).
850
Martin v. Löwis11f72102009-02-10 13:13:30 +0000851- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
852
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000853- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
854
Martin v. Löwise97637d2009-01-11 09:45:11 +0000855- Issue #4895: Use _strdup on Windows CE.
856
Georg Brandlb1441c72009-01-03 22:33:39 +0000857- Issue #4472: "configure --enable-shared" now works on OSX
858
859- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
860
861- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
862
863- Issue #4289: Remove Cancel button from AdvancedDlg.
864
865- Issue #1656675: Register a drop handler for .py* files on Windows.
866
867- Issue #4120: Exclude manifest from extension modules in VS2008.
868
869- Issue #4091: Install pythonxy.dll in system32 again.
870
871- Issue #4018: Disable "for me" installations on Vista.
872
873- Issue #3758: Add ``patchcheck`` build target to .PHONY.
874
875- Issue #4204: Fixed module build errors on FreeBSD 4.
876
877
878C-API
879-----
880
Mark Dickinson21776072009-02-10 16:13:25 +0000881- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
882 for negative arguments. Previously, it raised TypeError.
883
Georg Brandlb1441c72009-01-03 22:33:39 +0000884- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
885
886- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
887 the GIL is released, or owned by another thread.
888
889- Issue #4122: On Windows, fix a compilation error when using the
890 Py_UNICODE_ISSPACE macro in an extension module.
891
892
Mark Dickinsone675f082008-12-11 21:56:00 +0000893Extension Modules
894-----------------
895
Gregory P. Smith365a1862009-02-12 07:35:29 +0000896- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
897 supporting objects as input no matter how it was compiled (built in
898 implementations or external openssl library).
899
Mark Dickinson29500f62009-01-15 15:36:10 +0000900- Issue #4397: Fix occasional test_socket failure on OS X.
901
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000902- Issue #4279: Fix build of parsermodule under Cygwin.
903
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000904- Issue #4751: hashlib now releases the GIL when hashing large buffers
905 (with a hardwired threshold of 2048 bytes), allowing better parallelization
906 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
907
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000908- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
909
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000910- Issue #4738: Each zlib object now has a separate lock, allowing to compress
911 or decompress several streams at once on multi-CPU systems. Also, the GIL
912 is now released when computing the CRC of a large buffer. Patch by ebfe.
913
Georg Brandlb1441c72009-01-03 22:33:39 +0000914- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
915
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000916- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
917
Mark Dickinsone675f082008-12-11 21:56:00 +0000918- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
919 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000920
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000921- Issue #4583: array.array would not always prohibit resizing when a buffer
922 has been exported, resulting in an interpreter crash when accessing the
923 buffer.
924
Martin v. Löwis841edad2008-11-30 10:36:49 +0000925
Jack Diederiche0cbd692009-04-01 04:27:09 +0000926- Issue #5228: Make functools.partial objects can now be pickled.
927
Guilherme Polo9de29af2009-01-28 20:40:48 +0000928Tests
929-----
930
R. David Murraya21e4ca2009-03-31 23:16:50 +0000931- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
932 that should cause a test to be skipped are now done using import_module
933 from test support, which does the conversion.
934
Guilherme Polo9de29af2009-01-28 20:40:48 +0000935- Issue #5083: New 'gui' resource for regrtest.
936
937
Brett Cannon7317c1e2008-11-25 19:19:17 +0000938Docs
939----
940
Georg Brandl52b92cc2008-05-25 09:43:03 +0000941
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000942**(For information about older versions, consult the HISTORY file.)**