blob: bb4c134eac868fae36019f561e60872bc165a708 [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
Eric Smith6dc46f52009-04-27 20:39:49 +000015- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
16 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
17
Eric Smithcc32a112009-04-26 21:35:14 +000018- Issue #5835: Deprecate PyOS_ascii_formatd.
19
Martin v. Löwis71efeb72009-04-26 01:02:07 +000020- Issue #4971: Fix titlecase for characters that are their own
21 titlecase, but not their own uppercase.
22
Benjamin Peterson193152c2009-04-25 01:08:45 +000023- Issue #5283: Setting __class__ in __del__ caused a segfault.
24
Mark Dickinsonad476da2009-04-23 19:14:16 +000025- Issue #5816: complex(repr(z)) now recovers z exactly, even when
26 z involves nans, infs or negative zeros.
27
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000028- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000029
Mark Dickinsone6a076d2009-04-18 11:48:33 +000030- Issue #1869 (and many duplicates): make round(x, n) correctly
31 rounded for a float x, by using the decimal <-> binary conversions
32 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
33 consistently agrees with format(x, '.2f').
34
Benjamin Petersonae937c02009-04-18 20:54:08 +000035- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
36 some builtin types.
37
Eric Smith0923d1d2009-04-16 20:16:10 +000038- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
39
Eric Smith35e84722009-04-16 20:21:28 +000040- Issue #5515: str.format() type 'n' combined with commas and leading
41 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000042
43- Implement PEP 378, Format Specifier for Thousands Separator, for
44 floats.
45
Mark Dickinson3370cce2009-04-17 22:40:53 +000046- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000047 1e11, not 1e12. This avoids printing 13 significant digits in
48 situations where only 12 of them are correct. Example problem
49 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
50 long time.)
51
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000052- Issue #1580: On most platforms, use a 'short' float repr: for a
53 finite float x, repr(x) now outputs a string based on the shortest
54 sequence of decimal digits that rounds to x. Previous behaviour was
55 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000056 Another minor difference is that the new repr switches to
57 exponential notation at 1e16 instead of the previous 1e17; this
58 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000059
60 There's a new sys attribute sys.float_repr_style, which takes
61 the value 'short' to indicate that we're using short float repr,
62 and 'legacy' if the short float repr isn't available for one
63 reason or another.
64
65 The float repr change involves incorporating David Gay's 'perfect
66 rounding' code into the Python core (it's in Python/dtoa.c). As a
67 secondary consequence, all string-to-float and float-to-string
68 conversions (including all float formatting operations) will be
69 correctly rounded on these platforms.
70
71 See issue 1580 discussions for details of platforms for which
72 this change does not apply.
73
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000074- Issue #5759: float() didn't call __float__ on str subclasses.
75
Georg Brandlabc38772009-04-12 15:51:51 +000076- The string.maketrans() function is deprecated; there is a new static method
77 maketrans() on the bytes and bytearray classes. This removes confusion about
78 the types string.maketrans() is supposed to work with, and mirrors the
79 methods available on the str class.
80
R. David Murraydc6da8a2009-04-09 22:16:43 +000081- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
82 its clarity and its speed.
83
Matthias Klose091c7b12009-04-07 13:24:27 +000084- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
85 to avoid compiler warnings.
86
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000087Installation
88------------
89
90- Issue #5756: Install idle and pydoc with a 3 suffix.
91
Benjamin Petersonbd35b032009-04-04 23:16:41 +000092Library
93-------
94
Raymond Hettinger1f0db402009-04-29 00:38:08 +000095- Issue #5857: tokenize.tokenize() now returns named tuples.
96
Thomas Hellerc1edc2d2009-04-28 19:55:58 +000097- Issue #4305: ctypes should now build again on mipsel-linux-gnu
98
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +000099- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
100 string is already in normalized form, by performing a quick check beforehand.
101 Original patch by Rauli Ruohonen.
102
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000103- Issue #5853: calling a function of the mimetypes module from several threads
104 at once could hit the recursion limit if the mimetypes database hadn't been
105 initialized before.
106
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000107- Issue #5854: Updated __all__ to include some missing names and remove some
108 names which should not be exported.
109
Thomas Heller34596a92009-04-24 20:50:00 +0000110- Issue #3102: All global symbols that the _ctypes extension defines
111 are now prefixed with 'Py' or '_ctypes'.
112
113- Issue #5041: ctypes does now allow pickling wide character.
114
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000115- Issue #5812: For the two-argument form of the Fraction constructor,
116 Fraction(m, n), m and n are permitted to be arbitrary Rational
117 instances.
118
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000119- Issue #5812: Fraction('1e6') is valid: more generally, any string
120 that's valid for float() is now valid for Fraction(), with the
121 exception of strings representing NaNs and infinities.
122
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000123- Issue #5734: BufferedRWPair was poorly tested and had several glaring
124 bugs. Patch by Brian Quinlan.
125
R. David Murray9e94ddf2009-04-13 17:06:33 +0000126- Issue #1161031: fix readwrite select flag handling: POLLPRI now
127 results in a handle_expt_event call, not handle_read_event, and POLLERR
128 and POLLNVAL now call handle_close, not handle_expt_event. Also,
129 dispatcher now has an 'ignore_log_types' attribute for suppressing
130 log messages, which is set to 'warning' by default.
131
Matthias Klosea3d29e82009-04-07 13:13:10 +0000132- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
133 new arguments introduced in 2.5.
134
Walter Dörwald1b08b302009-04-25 14:13:56 +0000135- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
136 makeunicodedata.py and regenerated the Unicode database (This fixes
137 u'\u1d79'.lower() == '\x00').
138
Matthias Klose535336f2009-04-07 13:49:45 +0000139Extension Modules
140-----------------
141
Mark Dickinsonea835e72009-04-19 20:40:33 +0000142- Issue #5463: In struct module, remove deprecated float coercion
143 for integer type codes: struct.pack('L', 0.3) should now raise
144 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
145 The version number has been bumped to 0.3.
146
Matthias Klose535336f2009-04-07 13:49:45 +0000147- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
148 using Berkley-DB.
149
Nick Coghlan47384702009-04-22 16:13:36 +0000150Tests
151-----
152
153- Issue #5354: New test support function import_fresh_module() makes
154 it easy to import both normal and optimised versions of modules.
155 test_heapq and test_warnings have been adjusted to use it, tests for
156 other modules with both C and Python implementations in the stdlib
157 can be adjusted to use it over time.
158
Walter Dörwald4ba80132009-04-25 12:48:43 +0000159- Issue #5837: Certain sequences of calls to set() and unset() for
160 support.EnvironmentVarGuard objects restored the environment variables
161 incorrectly on __exit__.
162
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000163
Benjamin Petersond1735892009-03-07 18:46:21 +0000164What's New in Python 3.1 alpha 2?
165=================================
166
Benjamin Peterson88f14352009-04-04 21:06:52 +0000167*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000168
169Core and Builtins
170-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000171
Eric Smith1e1d7d22009-04-03 22:25:33 +0000172- Implement PEP 378, Format Specifier for Thousands Separator, for
173 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000174
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000175- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
176
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000177- Issue #5499: The 'c' code for argument parsing functions now only accepts a
178 byte, and the 'C' code only accepts a unicode character.
179
Georg Brandl406b3d82009-04-11 21:24:37 +0000180- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
181 when hitting the recursion limit under certain circumstances.
182
Brett Cannon0759dd62009-04-01 18:13:07 +0000183- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
184
Georg Brandlab6f2f62009-03-31 04:16:10 +0000185- Fix a segfault when running test_exceptions with coverage, caused by
186 insufficient checks in accessors of Exception.__context__.
187
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000188- Issue #5604: non-ASCII characters in module name passed to
189 imp.find_module() were converted to UTF-8 while the path is
190 converted to the default filesystem encoding, causing nonsense.
191
Benjamin Peterson09832742009-03-26 17:15:46 +0000192- Issue #5126: str.isprintable() returned False for space characters.
193
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000194- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
195 the end sys.path, for compatibility with the system install of Python.
196
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000197- Issue #4688: Add a heuristic so that tuples and dicts containing only
198 untrackable objects are not tracked by the garbage collector. This can
199 reduce the size of collections and therefore the garbage collection overhead
200 on long-running programs, depending on their particular use of datatypes.
201
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000202- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
203 improve its performance. Long divisions and remainder operations
204 are now between 50% and 150% faster.
205
Mark Dickinsonbd792642009-03-18 20:06:12 +0000206- Issue #4258: Make it possible to use base 2**30 instead of base
207 2**15 for the internal representation of integers, for performance
208 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
209 --enable-big-digits option to configure, which overrides the
210 default. Add sys.int_info structseq to provide information about
211 the internal format.
212
Mark Dickinson081dfee2009-03-18 14:47:41 +0000213- Issue #4474: PyUnicode_FromWideChar now converts characters outside
214 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
215 and sizeof(Py_UNICODE) == 2.
216
Eric Smith8ec90442009-03-14 12:29:34 +0000217- Issue #5237: Allow auto-numbered fields in str.format(). For
218 example: '{} {}'.format(1, 2) == '1 2'.
219
Antoine Pitrou652e7072009-03-13 19:25:20 +0000220- Issue #5392: when a very low recursion limit was set, the interpreter would
221 abort with a fatal error after the recursion limit was hit twice.
222
Matthias Klose042f1332009-04-04 14:32:42 +0000223- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
224 short file names.
225
Benjamin Petersond1735892009-03-07 18:46:21 +0000226Library
227-------
228
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000229- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000230 mailbox.MH.get_message().
231
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000232- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
233 error substitutions from non-strict codec error callbacks in
234 incrementalencoder and StreamWriter.
235
Georg Brandl33c28812009-04-01 23:07:29 +0000236- Issue #5656: Fix the coverage reporting when running the test suite with
237 the -T argument.
238
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000239- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
240
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000241- Issue #5624: Fix the _winreg module name still used in several modules.
242
Benjamin Petersona1b49012009-03-31 23:11:32 +0000243- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
244
Jesse Nollera9314042009-03-31 22:36:44 +0000245- Issue #5619: Multiprocessing children disobey the debug flag and causes
246 popups on windows buildbots. Patch applied to work around this issue.
247
Jesse Noller32d68c22009-03-31 18:48:42 +0000248- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
249
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000250- Issue #5387: Fixed mmap.move crash by integer overflow.
251
Jesse Nollerf8d00852009-03-31 03:25:07 +0000252- Issue #5261: Patch multiprocessing's semaphore.c to support context
253 manager use: "with multiprocessing.Lock()" works now.
254
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000255- Issue #5236: Change time.strptime() to only take strings. Didn't work with
256 bytes already but the failure was non-obvious.
257
Jesse Noller7af4ef82009-03-30 16:47:15 +0000258- Issue #5177: Multiprocessing's SocketListener class now uses
259 socket.SO_REUSEADDR on all connections so that the user no longer needs
260 to wait 120 seconds for the socket to expire.
261
Benjamin Peterson48e24782009-03-29 13:02:52 +0000262- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
263
Antoine Pitrou66994e12009-03-29 00:45:26 +0000264- Issue #1174606: Calling read() without arguments of an unbounded file
265 (typically /dev/zero under Unix) could crash the interpreter.
266
Benjamin Peterson59406a92009-03-26 17:10:29 +0000267- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
268 io.BufferedRandom have been deprecated for removal in Python 3.2.
269
Lars Gustäbel42e00912009-03-22 20:34:29 +0000270- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
271 forever on incomplete input. That caused tarfile.open() to hang when used
272 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
273 partial bzip2 compressed data.
274
Mark Dickinson79f52032009-03-17 23:12:51 +0000275- Issue #2110: Add support for thousands separator and 'n' type
276 specifier to Decimal.__format__
277
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000278- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
279 '>' alignment characters.
280
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000281- The error detection code in FileIO.close() could fail to reflect the `errno`
282 value, and report it as -1 instead.
283
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000284- Issue #5016: FileIO.seekable() could return False if the file position
285 was negative when truncated to a C int. Patch by Victor Stinner.
286
Mark Dickinsonae681df2009-03-21 10:26:31 +0000287Extension Modules
288-----------------
289
Benjamin Petersone099b372009-04-04 17:09:35 +0000290- Issue #5391: mmap now deals exclusively with bytes.
291
Mark Dickinsonae681df2009-03-21 10:26:31 +0000292- Issue #5463: In struct module, remove deprecated overflow wrapping
293 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000294 struct.error instead of returning b'\xff\xff\xff\xff'. The
295 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
296 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000297
Benjamin Petersond1735892009-03-07 18:46:21 +0000298
Benjamin Petersona58a6262009-03-07 16:34:40 +0000299What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000300================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000301
Benjamin Petersona58a6262009-03-07 16:34:40 +0000302*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000303
304Core and Builtins
305-----------------
306
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000307- The io module has been reimplemented in C for speed.
308
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000309- Give dict views an informative __repr__.
310
Eric Smith5e5c0db2009-02-20 14:25:03 +0000311- Issue #5247: Improve error message when unknown format codes are
312 used when using str.format() with str, int, and float arguments.
313
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000314- Issue #5249: time.strftime returned malformed string when format string
315 contained non ascii character on windows.
316
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000317- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
318 source has already been decoded into str.
319
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000320- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
321 rotating the object pointer by 4 bits to the right.
322
Mark Dickinson87ec0852009-02-09 17:15:59 +0000323- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
324 it now forces its argument to double before testing for infinity.
325
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000326- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
327 returns a non-number type.
328
Benjamin Peterson87618552009-02-08 15:00:52 +0000329- Issue #5182: Removed memoryview.__str__.
330
Mark Dickinsonc008a172009-02-01 13:59:22 +0000331- Issue #1717: Removed builtin cmp() function, dropped tp_compare
332 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000333 the type definition cmpfunc. The tp_compare slot has been renamed
334 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000335
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000336- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000337 were suppressing all exceptions. These include list() and bytearray().
338
Mark Dickinson1124e712009-01-28 21:25:58 +0000339- Issue #4707: round(x, n) now returns an integer if x is an integer.
340 Previously it returned a float.
341
Antoine Pitroub52ec782009-01-25 16:34:23 +0000342- Issue #4753: By enabling a configure option named '--with-computed-gotos'
343 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
344 evaluation loop is compiled with a new dispatch mechanism which gives
345 speedups of up to 20%, depending on the system, on various benchmarks.
346
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000347- Issue #4874: Most builtin decoders now reject unicode input.
348
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000349- Issue #4842: Don't allow trailing 'L' when constructing an integer
350 from a string.
351
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000352- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
353
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000354- Issue #4838: When a module is deallocated, free the memory backing the
355 optional module state data.
356
Mark Dickinson8055afd2009-01-17 10:04:45 +0000357- Issue #4910: Rename nb_long slot to nb_reserved, and change its
358 type to (void *).
359
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000360- Issue #4935: The overflow checking code in the expandtabs() method common
361 to str, bytes and bytearray could be optimized away by the compiler, letting
362 the interpreter segfault instead of raising an error.
363
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000364- Issue #3720: Fix a crash when an iterator modifies its class and removes its
365 __next__ method.
366
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000367- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
368 function no longer attempt to call the __long__ slot to convert an object
369 to an integer. Only the __int__ and __trunc__ slots are examined.
370
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000371- Issue #4893: Use NT threading on CE.
372
Martin v. Löwisec59d042009-01-12 07:59:10 +0000373- Issue #4915: Port sysmodule to Windows CE.
374
Antoine Pitrouab868312009-01-10 15:40:25 +0000375- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
376 common cases are optimized thanks to a dedicated fast path and a moderate
377 amount of loop unrolling.
378
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000379- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
380 collecting the oldest generation) so that allocating lots of objects without
381 destroying them does not show quadratic performance. Based on a proposal by
382 Martin von Löwis at
383 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
384
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000385- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000386 having been closed (for instance, a read() call could return some
387 previously buffered data). Patch by Dmitry Vasiliev.
388
Antoine Pitrou05608432009-01-09 18:53:14 +0000389- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
390 flag to work properly. Furthermore, when specifying -u, the text stdout
391 and stderr streams have line-by-line buffering enabled (the default being
392 to buffer arbitrary chunks of data).
393
Raymond Hettinger35631532009-01-09 03:58:09 +0000394- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
395 instead of ints (reducing its size from 4 to 8 times thereby reducing
396 Python's overall memory).
397
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000398- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
399 an existing .py counterpart, override the co_filename attributes of all
400 code objects if the original filename is obsolete (which can happen if the
401 file has been renamed, moved, or if it is accessed through different paths).
402 Patch by Ziga Seilnacht and Jean-Paul Calderone.
403
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000404- Issue #4580: Fix slicing of memoryviews when the item size is greater than
405 one byte. Also fixes the meaning of len() so that it returns the number of
406 items, rather than the size in bytes.
407
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000408- Issue #4075: Use OutputDebugStringW in Py_FatalError.
409
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000410- Issue #4747: When the terminal does not use utf-8, executing a script with
411 non-ascii characters in its name could fail with a "SyntaxError: None" error.
412
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000413- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000414 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000415
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000416- Issue #3680: Reference cycles created through a dict, set or deque iterator
417 did not get collected.
418
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000419- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
420 where the tp_hash and tp_dict slots are both NULL.
421
Georg Brandlccc47b62008-12-28 11:44:14 +0000422- Issue #4759: None is now allowed as the first argument of
423 bytearray.translate(). It was always allowed for bytes.translate().
424
Skip Montanaro80072cb2008-12-23 03:51:14 +0000425- Added test case to ensure attempts to read from a file opened for writing
426 fail.
427
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000428- Issue #3106: Speedup some comparisons (str/str and int/int).
429
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000430- Issue #2183: Simplify and optimize bytecode for list, dict and set
431 comprehensions. Original patch for list comprehensions by Neal Norwitz.
432
Antoine Pitrou621601a2008-12-17 23:18:19 +0000433- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
434 print elapsed times, not only when some objects are uncollectable /
435 unreachable. Original patch by Neil Schemenauer.
436
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000437- Issue #3439: Add a bit_length method to int.
438
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000439- Issue #2173: When getting device encoding, check that return value of
440 nl_langinfo is not the empty string. This was causing silent build
441 failures on OS X.
442
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000443- Issue #4597: Fixed several opcodes that weren't always propagating
444 exceptions.
445
446- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000447 context manager returns a value that cannot be converted to a bool.
448
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000449- Issue #4445: Replace "sizeof(PyBytesObject)" with
450 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
451 bytes instances. On a typical machine this saves 3 bytes of memory
452 (on average) per allocation of a bytes instance.
453
Christian Heimesa872de52008-12-05 08:26:55 +0000454- Issue #4533: File read operation was dreadfully slow due to a slowly
455 growing read buffer. Fixed by using the same growth rate algorithm as
456 Python 2.x.
457
Antoine Pitrou5504e892008-12-06 21:27:53 +0000458- Issue #4509: Various issues surrounding resize of bytearray objects to
459 which there are buffer exports (e.g. memoryview instances).
460
Georg Brandlf9734072008-12-07 15:30:06 +0000461- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
462 method on file objects with closefd=False. The file descriptor is still
463 kept open but the file object behaves like a closed file. The ``FileIO``
464 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000465
Antoine Pitroubc420402008-12-07 20:14:49 +0000466- Issue #4569: Interpreter crash when mutating a memoryview with an item size
467 larger than 1.
468
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000469- Issue #4748: Lambda generators no longer return a value.
470
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000471- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
472
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000473Library
474-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000475
R. David Murrayb507d2e2009-04-29 15:34:32 +0000476- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
477
Tarek Ziadé81623822009-04-29 08:07:44 +0000478- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
479 anymore.
480
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000481- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000482 sysconfig.get_config_vars.
483
Tarek Ziadé23336082009-04-25 12:39:56 +0000484- Issue #4951: Fixed failure in test_httpservers.
485
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000486- Issue #5795: Fixed test_distutils failure on Debian ppc.
487
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000488- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
489
Georg Brandl1f9fa312009-04-27 16:42:58 +0000490- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
491 a value in SafeConfigParser.
492
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000493- Issue #5732: added a new command in Distutils: check.
494
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000495- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000496 platforms. Initial patch by Paul Moore.
497
Tarek Ziadéf6370502009-04-05 22:57:21 +0000498- Issue #5095: Added bdist_msi to the list of bdist supported formats.
499 Initial fix by Steven Bethard.
500
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000501- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
502 Initial fix by Wayne Davison.
503
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000504- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000505
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000506- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000507
Brett Cannonf47e84c2009-04-01 16:06:01 +0000508- Issue #1665206 (partially): Move imports in cgitb to the top of the module
509 instead of performing them in functions. Helps prevent import deadlocking in
510 threads.
511
R. David Murraye59482e2009-04-01 03:42:00 +0000512- Issue #2522: locale.format now checks its first argument to ensure it has
513 been passed only one pattern, avoiding mysterious errors where it appeared
514 that it was failing to do localization.
515
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000516- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
517 Brandl.
518
Antoine Pitrou350370c2009-03-14 00:13:13 +0000519- Issue #1222: locale.format() bug when the thousands separator is a space
520 character.
521
Tarek Ziadé516db942009-03-11 12:52:00 +0000522- Issue #5472: Fixed distutils.test_util tear down. Original patch by
523 Tim Golden.
524
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000525- collections.deque() objects now have a read-only attribute called maxlen.
526
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000527- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
528 it is has been populated and properly configured in order to prevent
529 window flashing.
530
Guilherme Polo56f5be52009-03-07 01:54:57 +0000531- Issue #4792: Prevent a segfault in _tkinter by using the
532 guaranteed to be safe interp argument given to the PythonCmd in place of
533 the Tcl interpreter taken from a PythonCmd_ClientData.
534
535- Issue #5193: Guarantee that tkinter.Text.search returns a string.
536
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000537- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
538 Original patch by Akira Kitada.
539
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000540- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
541
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000542- Issue #5385: Fixed mmap crash after resize failure on windows.
543
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000544- Issue #5179: Fixed subprocess handle leak on failure on windows.
545
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000546- PEP 372: Added collections.OrderedDict().
547
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000548- The _asdict() for method for namedtuples now returns an OrderedDict().
549
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000550- configparser now defaults to using an ordered dictionary.
551
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000552- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
553 import guess_extension`` was used.
554
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000555- Issue #1733986: Fixed mmap crash in accessing elements of second map object
556 with same tagname but larger size than first map. (Windows)
557
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000558- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
559 overrun.
560
Tarek Ziadéf0721222009-02-28 10:16:43 +0000561- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
562 bdist_rpm command.
563
564- Issue #5378: added --quiet option to Distutils bdist_rpm command.
565
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000566- Issue #5052: make Distutils compatible with 2.3 again.
567
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000568- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
569 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000570
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000571- Issue #5287: Add exception handling around findCaller() call to help out
572 IronPython.
573
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000574- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
575 The file was resized to wrong size.
576
577- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
578
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000579- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000580 from the package_data and the data_files metadata.
581
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000582- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000583 support.TempdirManager, to avoid writing in the tests directory.
584
Tarek Ziadé68c50952009-02-13 23:04:17 +0000585- Issue #4524: distutils build_script command failed with --with-suffix=3.
586 Initial patch by Amaury Forgeot d'Arc.
587
Tarek Ziadé811d6242009-02-13 22:26:15 +0000588- Issue #2461: added tests for distutils.util
589
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000590- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
591 which inherited from numbers.py which did not have __slots__ defined. The
592 numbers hierarchy now has its own __slots__ declarations.
593
Antoine Pitroub353c122009-02-11 00:39:14 +0000594- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
595 encoding.
596
Thomas Heller465c8022009-02-10 18:59:04 +0000597- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
598 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
599
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000600- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
601 under NT and OS2. Patch by Philip Jenvey.
602
Brett Cannonbefb14f2009-02-10 02:10:16 +0000603- Issue #5128: Make compileall properly inspect bytecode to determine if needs
604 to be recreated. This avoids a timing hole thanks to the old reliance on the
605 ctime of the files involved.
606
Guilherme Polob681df42009-02-09 22:33:59 +0000607- Issue #5122: Synchronize tk load failure check to prevent a potential
608 deadlock.
609
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000610- Issue #1818: collections.namedtuple() now supports a keyword argument
611 'rename' which lets invalid fieldnames be automatically converted to
612 positional names in the form, _1, _2, ...
613
Guilherme Poloae098992009-02-09 16:44:24 +0000614- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
615
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000616- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
617 public documented method ``ZipImporter.get_filename()``.
618
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000619- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
620 the execution of packages by looking for and executing a ``__main__``
621 submodule when a package name is supplied. Initial patch by Andi
622 Vajda.
623
Guilherme Polo491aee22009-02-06 23:16:11 +0000624- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
625 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
626 Tkapp_Call when calling from a thread different than the one that created
627 the Tcl interpreter. Patch by Robert Hancock.
628
Eric Smith0e5b5622009-02-06 01:32:42 +0000629- Issue #4285: Change sys.version_info to be a named tuple. Patch by
630 Ross Light.
631
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000632- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000633 environment/Makefile. Patch by Douglas Greiman.
634
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000635- Issue #1276768: The verbose option was not used in the code of
636 distutils.file_util and distutils.dir_util.
637
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000638- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000639 --enabled-shared activated. Initial patch by Dave Peterson.
640
Guilherme Polo7f423952009-02-02 21:17:09 +0000641- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
642
Raymond Hettinger85602262009-02-03 04:19:10 +0000643- The shelve module now defaults to pickle protocol 3.
644
Brett Cannone61426e2009-01-30 01:31:34 +0000645- Fix a bug in the trace module where a bytes object from co_lnotab had its
646 items being passed through ord().
647
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000648- Issue #2047: shutil.move() could believe that its destination path was
649 inside its source path if it began with the same letters (e.g. "src" vs.
650 "src.new").
651
Guilherme Polo5f238482009-01-28 14:41:10 +0000652- Added the ttk module. See issue #2983: Ttk support for Tkinter.
653
Raymond Hettinger89e12962009-01-26 02:09:03 +0000654- Removed isSequenceType(), isMappingType, and isNumberType() from the
655 operator module; use the abstract base classes instead. Also removed
656 the repeat() function; use mul() instead.
657
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000658- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000659 collections.namedtuple() relied on __name__ being defined.
660
661- Backport importlib from Python 3.1. Only the import_module() function has
662 been backported to help facilitate transitions from 2.7 to 3.1.
663
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000664- Issue #1885: distutils. When running sdist with --formats=tar,gztar
665 the tar file was overriden by the gztar one.
666
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000667- Issue #4863: distutils.mwerkscompiler has been removed.
668
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000669- Added a new itertools functions: combinations_with_replacement()
670 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000671
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000672- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000673 allowed non-integer arguments.
674
Jesse Noller41faa542009-01-25 03:45:53 +0000675- Fix and properly document the multiprocessing module's logging
676 support, expose the internal levels and provide proper usage
677 examples.
678
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000679- Issue #1672332: fix unpickling of subnormal floats, which was
680 producing a ValueError on some platforms.
681
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000682- Issue #3881: Help Tcl to load even when started through the
683 unreadable local symlink to "Program Files" on Vista.
684
Martin v. Löwis59e47792009-01-24 14:10:07 +0000685- Issue #4710: Extract directories properly in the zipfile module;
686 allow adding directories to a zipfile.
687
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000688- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000689 --without-threads argument. When this occurs, _multiprocessing will
690 be disabled, and not compiled.
691
Antoine Pitrou08838b62009-01-21 00:55:13 +0000692- Issue #5008: When a file is opened in append mode with the new IO library,
693 do an explicit seek to the end of file (so that e.g. tell() returns the
694 file size rather than 0). This is consistent with the behaviour of the
695 traditional 2.x file object.
696
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000697- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
698 parameter was set.
699
Mark Dickinson8dd05142009-01-20 20:43:58 +0000700- Issue #4842: Always append a trailing 'L' when pickling longs using
701 pickle protocol 0. When reading, the 'L' is optional.
702
Brett Cannonafccd632009-01-20 02:21:27 +0000703- Add the importlib package.
704
Jesse Noller9a0fc972009-01-18 21:12:58 +0000705- Issue #4301: Patch the logging module to add processName support, remove
706 _check_logger_class from multiprocessing.
707
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000708- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000709 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000710
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000711- Issue #4959: inspect.formatargspec now works for keyword only arguments
712 without defaults.
713
Jesse Noller6214edd2009-01-19 16:23:53 +0000714- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
715 for *nix machines for negative handles and large int handles. Without this check
716 it is possible to segfault the interpreter.
717
Jesse Nollerb0516a62009-01-18 03:11:38 +0000718- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
719 in sharedctypes.py.
720
721- Issue #1225107: inspect.isclass() returned True for instances with a custom
722 __getattr__.
723
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000724- Issue #3826 and #4791: The socket module now closes the underlying socket
725 appropriately when it is being used via socket.makefile() objects
726 rather than delaying the close by waiting for garbage collection to do it.
727
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000728- Issue #1696199: Add collections.Counter() for rapid and convenient
729 counting.
730
Antoine Pitrou308705e2009-01-10 16:22:51 +0000731- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
732
Thomas Heller5e4e4272009-01-08 09:34:20 +0000733- Issue #4867: Fixed a crash in ctypes when passing a string to a
734 function without defining argtypes.
735
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000736- Issue #4272: Add an optional argument to the GzipFile constructor to override
737 the timestamp in the gzip stream. The default value remains the current time.
738 The information can be used by e.g. gunzip when decompressing. Patch by
739 Jacques Frechet.
740
Mark Dickinson315a20a2009-01-04 21:34:18 +0000741- Restore Python 2.3 compatibility for decimal.py.
742
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000743- Issue #3638: Remove functions from _tkinter module level that depend on
744 TkappObject to work with multiple threads.
745
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000746- Issue #4718: Adapt the wsgiref package so that it actually works with
747 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000748 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
749
Raymond Hettinger771ed762009-01-03 19:20:32 +0000750- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
751 to the decimal module.
752
Georg Brandl3a9b0622009-01-03 22:07:57 +0000753- Fractions.from_float() no longer loses precision for integers too big to
754 cast as floats.
755
Mark Dickinsonf9236412009-01-02 23:23:21 +0000756- Issue #4812: add missing underscore prefix to some internal-use-only
757 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
758
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000759- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000760 did unnecessary work in the common case where no key function was specified.
761
Georg Brandlb1441c72009-01-03 22:33:39 +0000762- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
763 the function is not a generator.
764
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000765- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
766 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000767
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000768- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000769 function. Original patch by Thomas Heller.
770
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000771- Issue #3767: Convert Tk object to string in tkColorChooser.
772
Martin v. Löwise354d782008-12-29 16:03:04 +0000773- Issue #3248: Allow placing ScrolledText in a PanedWindow.
774
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000775- Issue #4444: Allow assertRaises() to be used as a context handler, so that
776 the code under test can be written inline if more practical.
777
Georg Brandldb7b6b92009-01-01 15:53:14 +0000778- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
779 works as expected in the interactive environment.
780
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000781- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
782 Gabriel Genellina.
783
Antoine Pitrou180a3362008-12-14 16:36:46 +0000784- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
785 boundary.
786
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000787- Issue #4223: inspect.getsource() will now correctly display source code
788 for packages loaded via zipimport (or any other conformant PEP 302
789 loader). Original patch by Alexander Belopolsky.
790
791- Issue #4201: pdb can now access and display source code loaded via
792 zipimport (or any other conformant PEP 302 loader). Original patch by
793 Alexander Belopolsky.
794
795- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
796 302 conformant loader) will now work correctly in most cases (they
797 are still subject to the constraints that exist for all code running
798 from inside a module loaded via a PEP 302 loader and attempting to
799 perform IO operations based on __file__). Original patch by
800 Alexander Belopolsky.
801
802- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
803 allows backporting to maintenance branches. Original patch by
804 Alexander Belopolsky.
805
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000806- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
807 a non-ASCII letter.
808
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000809- Issue #4616: TarFile.utime(): Restore directory times on Windows.
810
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000811- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
812 codec cannot be found. This is for compatibility with the builtin behavior.
813
Facundo Batista708d5812008-12-11 04:20:07 +0000814- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
815 give correct results in the case where one argument is a quiet NaN
816 and the other is a finite number that requires rounding.
817
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000818- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
819 libs.
820
Georg Brandlf9734072008-12-07 15:30:06 +0000821- Added the subprocess.check_call_output() convenience function to get output
822 from a subprocess on success or raise an exception on error.
823
824- 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
828- Issue #4384: Added logging integration with warnings module using
829 captureWarnings(). This change includes a NullHandler which does nothing;
830 it will be of use to library developers who want to avoid the "No handlers
831 could be found for logger XXX" message which can appear if the library user
832 doesn't configure logging.
833
834- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
835 exception.
836
Georg Brandleee31162008-12-07 15:15:22 +0000837- Issue #4529: fix the parser module's validation of try-except-finally
838 statements.
839
840- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
841 not a malformed option.
842
843- Added the subprocess.check_output() convenience function to get output
844 from a subprocess on success or raise an exception on error.
845
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000846- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
847 the corresponding tests now pass.
848
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000849- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
850 it was calling the wrong open() function.
851
Fred Drake9a0a65b2008-12-04 19:24:50 +0000852- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
853 support unusual filenames (such as those containing semi-colons) in
854 Content-Disposition headers.
855
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000856- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
857 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
858
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000859- Issue #5104: The socket module now raises OverflowError when 16-bit port and
860 protocol numbers are supplied outside the allowed 0-65536 range on bind()
861 and getservbyport().
862
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000863Tools/Demos
864-----------
865
Antoine Pitrou8a681222009-02-07 17:13:31 +0000866- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
867 and make it 2.6-compatible.
868
Guilherme Poloa7d27972009-01-28 16:06:51 +0000869- Ttk demos added in Demo/tkinter/ttk/
870
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000871- Issue #4677: add two list comprehension tests to pybench.
872
Georg Brandlb1441c72009-01-03 22:33:39 +0000873
874Build
875-----
876
Matthias Klose906785c2009-02-22 23:18:38 +0000877- Link the shared python library with $(MODLIBS).
878
Martin v. Löwis11f72102009-02-10 13:13:30 +0000879- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
880
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000881- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
882
Martin v. Löwise97637d2009-01-11 09:45:11 +0000883- Issue #4895: Use _strdup on Windows CE.
884
Georg Brandlb1441c72009-01-03 22:33:39 +0000885- Issue #4472: "configure --enable-shared" now works on OSX
886
887- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
888
889- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
890
891- Issue #4289: Remove Cancel button from AdvancedDlg.
892
893- Issue #1656675: Register a drop handler for .py* files on Windows.
894
895- Issue #4120: Exclude manifest from extension modules in VS2008.
896
897- Issue #4091: Install pythonxy.dll in system32 again.
898
899- Issue #4018: Disable "for me" installations on Vista.
900
901- Issue #3758: Add ``patchcheck`` build target to .PHONY.
902
903- Issue #4204: Fixed module build errors on FreeBSD 4.
904
905
906C-API
907-----
908
Mark Dickinson21776072009-02-10 16:13:25 +0000909- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
910 for negative arguments. Previously, it raised TypeError.
911
Georg Brandlb1441c72009-01-03 22:33:39 +0000912- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
913
914- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
915 the GIL is released, or owned by another thread.
916
917- Issue #4122: On Windows, fix a compilation error when using the
918 Py_UNICODE_ISSPACE macro in an extension module.
919
920
Mark Dickinsone675f082008-12-11 21:56:00 +0000921Extension Modules
922-----------------
923
Gregory P. Smith365a1862009-02-12 07:35:29 +0000924- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
925 supporting objects as input no matter how it was compiled (built in
926 implementations or external openssl library).
927
Mark Dickinson29500f62009-01-15 15:36:10 +0000928- Issue #4397: Fix occasional test_socket failure on OS X.
929
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000930- Issue #4279: Fix build of parsermodule under Cygwin.
931
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000932- Issue #4751: hashlib now releases the GIL when hashing large buffers
933 (with a hardwired threshold of 2048 bytes), allowing better parallelization
934 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
935
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000936- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
937
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000938- Issue #4738: Each zlib object now has a separate lock, allowing to compress
939 or decompress several streams at once on multi-CPU systems. Also, the GIL
940 is now released when computing the CRC of a large buffer. Patch by ebfe.
941
Georg Brandlb1441c72009-01-03 22:33:39 +0000942- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
943
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000944- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
945
Mark Dickinsone675f082008-12-11 21:56:00 +0000946- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
947 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000948
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000949- Issue #4583: array.array would not always prohibit resizing when a buffer
950 has been exported, resulting in an interpreter crash when accessing the
951 buffer.
952
Martin v. Löwis841edad2008-11-30 10:36:49 +0000953
Jack Diederiche0cbd692009-04-01 04:27:09 +0000954- Issue #5228: Make functools.partial objects can now be pickled.
955
Guilherme Polo9de29af2009-01-28 20:40:48 +0000956Tests
957-----
958
R. David Murraya21e4ca2009-03-31 23:16:50 +0000959- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000960 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000961 from test support, which does the conversion.
962
Guilherme Polo9de29af2009-01-28 20:40:48 +0000963- Issue #5083: New 'gui' resource for regrtest.
964
965
Brett Cannon7317c1e2008-11-25 19:19:17 +0000966Docs
967----
968
Georg Brandl52b92cc2008-05-25 09:43:03 +0000969
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000970**(For information about older versions, consult the HISTORY file.)**