blob: 251a8ebe2fa0330ac72402053b641f0cc71c010e [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
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000476- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000477 sysconfig.get_config_vars.
478
Tarek Ziadé23336082009-04-25 12:39:56 +0000479- Issue #4951: Fixed failure in test_httpservers.
480
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000481- Issue #5795: Fixed test_distutils failure on Debian ppc.
482
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000483- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
484
Georg Brandl1f9fa312009-04-27 16:42:58 +0000485- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
486 a value in SafeConfigParser.
487
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000488- Issue #5732: added a new command in Distutils: check.
489
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000490- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000491 platforms. Initial patch by Paul Moore.
492
Tarek Ziadéf6370502009-04-05 22:57:21 +0000493- Issue #5095: Added bdist_msi to the list of bdist supported formats.
494 Initial fix by Steven Bethard.
495
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000496- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
497 Initial fix by Wayne Davison.
498
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000499- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000500
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000501- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000502
Brett Cannonf47e84c2009-04-01 16:06:01 +0000503- Issue #1665206 (partially): Move imports in cgitb to the top of the module
504 instead of performing them in functions. Helps prevent import deadlocking in
505 threads.
506
R. David Murraye59482e2009-04-01 03:42:00 +0000507- Issue #2522: locale.format now checks its first argument to ensure it has
508 been passed only one pattern, avoiding mysterious errors where it appeared
509 that it was failing to do localization.
510
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000511- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
512 Brandl.
513
Antoine Pitrou350370c2009-03-14 00:13:13 +0000514- Issue #1222: locale.format() bug when the thousands separator is a space
515 character.
516
Tarek Ziadé516db942009-03-11 12:52:00 +0000517- Issue #5472: Fixed distutils.test_util tear down. Original patch by
518 Tim Golden.
519
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000520- collections.deque() objects now have a read-only attribute called maxlen.
521
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000522- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
523 it is has been populated and properly configured in order to prevent
524 window flashing.
525
Guilherme Polo56f5be52009-03-07 01:54:57 +0000526- Issue #4792: Prevent a segfault in _tkinter by using the
527 guaranteed to be safe interp argument given to the PythonCmd in place of
528 the Tcl interpreter taken from a PythonCmd_ClientData.
529
530- Issue #5193: Guarantee that tkinter.Text.search returns a string.
531
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000532- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
533 Original patch by Akira Kitada.
534
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000535- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
536
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000537- Issue #5385: Fixed mmap crash after resize failure on windows.
538
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000539- Issue #5179: Fixed subprocess handle leak on failure on windows.
540
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000541- PEP 372: Added collections.OrderedDict().
542
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000543- The _asdict() for method for namedtuples now returns an OrderedDict().
544
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000545- configparser now defaults to using an ordered dictionary.
546
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000547- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
548 import guess_extension`` was used.
549
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000550- Issue #1733986: Fixed mmap crash in accessing elements of second map object
551 with same tagname but larger size than first map. (Windows)
552
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000553- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
554 overrun.
555
Tarek Ziadéf0721222009-02-28 10:16:43 +0000556- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
557 bdist_rpm command.
558
559- Issue #5378: added --quiet option to Distutils bdist_rpm command.
560
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000561- Issue #5052: make Distutils compatible with 2.3 again.
562
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000563- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
564 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000565
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000566- Issue #5287: Add exception handling around findCaller() call to help out
567 IronPython.
568
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000569- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
570 The file was resized to wrong size.
571
572- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
573
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000574- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000575 from the package_data and the data_files metadata.
576
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000577- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000578 support.TempdirManager, to avoid writing in the tests directory.
579
Tarek Ziadé68c50952009-02-13 23:04:17 +0000580- Issue #4524: distutils build_script command failed with --with-suffix=3.
581 Initial patch by Amaury Forgeot d'Arc.
582
Tarek Ziadé811d6242009-02-13 22:26:15 +0000583- Issue #2461: added tests for distutils.util
584
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000585- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
586 which inherited from numbers.py which did not have __slots__ defined. The
587 numbers hierarchy now has its own __slots__ declarations.
588
Antoine Pitroub353c122009-02-11 00:39:14 +0000589- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
590 encoding.
591
Thomas Heller465c8022009-02-10 18:59:04 +0000592- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
593 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
594
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000595- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
596 under NT and OS2. Patch by Philip Jenvey.
597
Brett Cannonbefb14f2009-02-10 02:10:16 +0000598- Issue #5128: Make compileall properly inspect bytecode to determine if needs
599 to be recreated. This avoids a timing hole thanks to the old reliance on the
600 ctime of the files involved.
601
Guilherme Polob681df42009-02-09 22:33:59 +0000602- Issue #5122: Synchronize tk load failure check to prevent a potential
603 deadlock.
604
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000605- Issue #1818: collections.namedtuple() now supports a keyword argument
606 'rename' which lets invalid fieldnames be automatically converted to
607 positional names in the form, _1, _2, ...
608
Guilherme Poloae098992009-02-09 16:44:24 +0000609- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
610
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000611- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
612 public documented method ``ZipImporter.get_filename()``.
613
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000614- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
615 the execution of packages by looking for and executing a ``__main__``
616 submodule when a package name is supplied. Initial patch by Andi
617 Vajda.
618
Guilherme Polo491aee22009-02-06 23:16:11 +0000619- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
620 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
621 Tkapp_Call when calling from a thread different than the one that created
622 the Tcl interpreter. Patch by Robert Hancock.
623
Eric Smith0e5b5622009-02-06 01:32:42 +0000624- Issue #4285: Change sys.version_info to be a named tuple. Patch by
625 Ross Light.
626
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000627- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000628 environment/Makefile. Patch by Douglas Greiman.
629
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000630- Issue #1276768: The verbose option was not used in the code of
631 distutils.file_util and distutils.dir_util.
632
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000633- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000634 --enabled-shared activated. Initial patch by Dave Peterson.
635
Guilherme Polo7f423952009-02-02 21:17:09 +0000636- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
637
Raymond Hettinger85602262009-02-03 04:19:10 +0000638- The shelve module now defaults to pickle protocol 3.
639
Brett Cannone61426e2009-01-30 01:31:34 +0000640- Fix a bug in the trace module where a bytes object from co_lnotab had its
641 items being passed through ord().
642
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000643- Issue #2047: shutil.move() could believe that its destination path was
644 inside its source path if it began with the same letters (e.g. "src" vs.
645 "src.new").
646
Guilherme Polo5f238482009-01-28 14:41:10 +0000647- Added the ttk module. See issue #2983: Ttk support for Tkinter.
648
Raymond Hettinger89e12962009-01-26 02:09:03 +0000649- Removed isSequenceType(), isMappingType, and isNumberType() from the
650 operator module; use the abstract base classes instead. Also removed
651 the repeat() function; use mul() instead.
652
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000653- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000654 collections.namedtuple() relied on __name__ being defined.
655
656- Backport importlib from Python 3.1. Only the import_module() function has
657 been backported to help facilitate transitions from 2.7 to 3.1.
658
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000659- Issue #1885: distutils. When running sdist with --formats=tar,gztar
660 the tar file was overriden by the gztar one.
661
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000662- Issue #4863: distutils.mwerkscompiler has been removed.
663
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000664- Added a new itertools functions: combinations_with_replacement()
665 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000666
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000667- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000668 allowed non-integer arguments.
669
Jesse Noller41faa542009-01-25 03:45:53 +0000670- Fix and properly document the multiprocessing module's logging
671 support, expose the internal levels and provide proper usage
672 examples.
673
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000674- Issue #1672332: fix unpickling of subnormal floats, which was
675 producing a ValueError on some platforms.
676
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000677- Issue #3881: Help Tcl to load even when started through the
678 unreadable local symlink to "Program Files" on Vista.
679
Martin v. Löwis59e47792009-01-24 14:10:07 +0000680- Issue #4710: Extract directories properly in the zipfile module;
681 allow adding directories to a zipfile.
682
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000683- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000684 --without-threads argument. When this occurs, _multiprocessing will
685 be disabled, and not compiled.
686
Antoine Pitrou08838b62009-01-21 00:55:13 +0000687- Issue #5008: When a file is opened in append mode with the new IO library,
688 do an explicit seek to the end of file (so that e.g. tell() returns the
689 file size rather than 0). This is consistent with the behaviour of the
690 traditional 2.x file object.
691
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000692- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
693 parameter was set.
694
Mark Dickinson8dd05142009-01-20 20:43:58 +0000695- Issue #4842: Always append a trailing 'L' when pickling longs using
696 pickle protocol 0. When reading, the 'L' is optional.
697
Brett Cannonafccd632009-01-20 02:21:27 +0000698- Add the importlib package.
699
Jesse Noller9a0fc972009-01-18 21:12:58 +0000700- Issue #4301: Patch the logging module to add processName support, remove
701 _check_logger_class from multiprocessing.
702
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000703- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000704 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000705
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000706- Issue #4959: inspect.formatargspec now works for keyword only arguments
707 without defaults.
708
Jesse Noller6214edd2009-01-19 16:23:53 +0000709- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
710 for *nix machines for negative handles and large int handles. Without this check
711 it is possible to segfault the interpreter.
712
Jesse Nollerb0516a62009-01-18 03:11:38 +0000713- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
714 in sharedctypes.py.
715
716- Issue #1225107: inspect.isclass() returned True for instances with a custom
717 __getattr__.
718
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000719- Issue #3826 and #4791: The socket module now closes the underlying socket
720 appropriately when it is being used via socket.makefile() objects
721 rather than delaying the close by waiting for garbage collection to do it.
722
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000723- Issue #1696199: Add collections.Counter() for rapid and convenient
724 counting.
725
Antoine Pitrou308705e2009-01-10 16:22:51 +0000726- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
727
Thomas Heller5e4e4272009-01-08 09:34:20 +0000728- Issue #4867: Fixed a crash in ctypes when passing a string to a
729 function without defining argtypes.
730
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000731- Issue #4272: Add an optional argument to the GzipFile constructor to override
732 the timestamp in the gzip stream. The default value remains the current time.
733 The information can be used by e.g. gunzip when decompressing. Patch by
734 Jacques Frechet.
735
Mark Dickinson315a20a2009-01-04 21:34:18 +0000736- Restore Python 2.3 compatibility for decimal.py.
737
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000738- Issue #3638: Remove functions from _tkinter module level that depend on
739 TkappObject to work with multiple threads.
740
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000741- Issue #4718: Adapt the wsgiref package so that it actually works with
742 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000743 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
744
Raymond Hettinger771ed762009-01-03 19:20:32 +0000745- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
746 to the decimal module.
747
Georg Brandl3a9b0622009-01-03 22:07:57 +0000748- Fractions.from_float() no longer loses precision for integers too big to
749 cast as floats.
750
Mark Dickinsonf9236412009-01-02 23:23:21 +0000751- Issue #4812: add missing underscore prefix to some internal-use-only
752 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
753
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000754- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000755 did unnecessary work in the common case where no key function was specified.
756
Georg Brandlb1441c72009-01-03 22:33:39 +0000757- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
758 the function is not a generator.
759
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000760- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
761 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000762
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000763- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000764 function. Original patch by Thomas Heller.
765
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000766- Issue #3767: Convert Tk object to string in tkColorChooser.
767
Martin v. Löwise354d782008-12-29 16:03:04 +0000768- Issue #3248: Allow placing ScrolledText in a PanedWindow.
769
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000770- Issue #4444: Allow assertRaises() to be used as a context handler, so that
771 the code under test can be written inline if more practical.
772
Georg Brandldb7b6b92009-01-01 15:53:14 +0000773- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
774 works as expected in the interactive environment.
775
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000776- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
777 Gabriel Genellina.
778
Antoine Pitrou180a3362008-12-14 16:36:46 +0000779- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
780 boundary.
781
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000782- Issue #4223: inspect.getsource() will now correctly display source code
783 for packages loaded via zipimport (or any other conformant PEP 302
784 loader). Original patch by Alexander Belopolsky.
785
786- Issue #4201: pdb can now access and display source code loaded via
787 zipimport (or any other conformant PEP 302 loader). Original patch by
788 Alexander Belopolsky.
789
790- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
791 302 conformant loader) will now work correctly in most cases (they
792 are still subject to the constraints that exist for all code running
793 from inside a module loaded via a PEP 302 loader and attempting to
794 perform IO operations based on __file__). Original patch by
795 Alexander Belopolsky.
796
797- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
798 allows backporting to maintenance branches. Original patch by
799 Alexander Belopolsky.
800
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000801- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
802 a non-ASCII letter.
803
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000804- Issue #4616: TarFile.utime(): Restore directory times on Windows.
805
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000806- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
807 codec cannot be found. This is for compatibility with the builtin behavior.
808
Facundo Batista708d5812008-12-11 04:20:07 +0000809- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
810 give correct results in the case where one argument is a quiet NaN
811 and the other is a finite number that requires rounding.
812
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000813- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
814 libs.
815
Georg Brandlf9734072008-12-07 15:30:06 +0000816- Added the subprocess.check_call_output() convenience function to get output
817 from a subprocess on success or raise an exception on error.
818
819- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
820 support unusual filenames (such as those containing semi-colons) in
821 Content-Disposition headers.
822
823- Issue #4384: Added logging integration with warnings module using
824 captureWarnings(). This change includes a NullHandler which does nothing;
825 it will be of use to library developers who want to avoid the "No handlers
826 could be found for logger XXX" message which can appear if the library user
827 doesn't configure logging.
828
829- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
830 exception.
831
Georg Brandleee31162008-12-07 15:15:22 +0000832- Issue #4529: fix the parser module's validation of try-except-finally
833 statements.
834
835- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
836 not a malformed option.
837
838- Added the subprocess.check_output() convenience function to get output
839 from a subprocess on success or raise an exception on error.
840
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000841- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
842 the corresponding tests now pass.
843
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000844- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
845 it was calling the wrong open() function.
846
Fred Drake9a0a65b2008-12-04 19:24:50 +0000847- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
848 support unusual filenames (such as those containing semi-colons) in
849 Content-Disposition headers.
850
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000851- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
852 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
853
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000854- Issue #5104: The socket module now raises OverflowError when 16-bit port and
855 protocol numbers are supplied outside the allowed 0-65536 range on bind()
856 and getservbyport().
857
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000858Tools/Demos
859-----------
860
Antoine Pitrou8a681222009-02-07 17:13:31 +0000861- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
862 and make it 2.6-compatible.
863
Guilherme Poloa7d27972009-01-28 16:06:51 +0000864- Ttk demos added in Demo/tkinter/ttk/
865
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000866- Issue #4677: add two list comprehension tests to pybench.
867
Georg Brandlb1441c72009-01-03 22:33:39 +0000868
869Build
870-----
871
Matthias Klose906785c2009-02-22 23:18:38 +0000872- Link the shared python library with $(MODLIBS).
873
Martin v. Löwis11f72102009-02-10 13:13:30 +0000874- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
875
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000876- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
877
Martin v. Löwise97637d2009-01-11 09:45:11 +0000878- Issue #4895: Use _strdup on Windows CE.
879
Georg Brandlb1441c72009-01-03 22:33:39 +0000880- Issue #4472: "configure --enable-shared" now works on OSX
881
882- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
883
884- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
885
886- Issue #4289: Remove Cancel button from AdvancedDlg.
887
888- Issue #1656675: Register a drop handler for .py* files on Windows.
889
890- Issue #4120: Exclude manifest from extension modules in VS2008.
891
892- Issue #4091: Install pythonxy.dll in system32 again.
893
894- Issue #4018: Disable "for me" installations on Vista.
895
896- Issue #3758: Add ``patchcheck`` build target to .PHONY.
897
898- Issue #4204: Fixed module build errors on FreeBSD 4.
899
900
901C-API
902-----
903
Mark Dickinson21776072009-02-10 16:13:25 +0000904- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
905 for negative arguments. Previously, it raised TypeError.
906
Georg Brandlb1441c72009-01-03 22:33:39 +0000907- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
908
909- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
910 the GIL is released, or owned by another thread.
911
912- Issue #4122: On Windows, fix a compilation error when using the
913 Py_UNICODE_ISSPACE macro in an extension module.
914
915
Mark Dickinsone675f082008-12-11 21:56:00 +0000916Extension Modules
917-----------------
918
Gregory P. Smith365a1862009-02-12 07:35:29 +0000919- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
920 supporting objects as input no matter how it was compiled (built in
921 implementations or external openssl library).
922
Mark Dickinson29500f62009-01-15 15:36:10 +0000923- Issue #4397: Fix occasional test_socket failure on OS X.
924
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000925- Issue #4279: Fix build of parsermodule under Cygwin.
926
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000927- Issue #4751: hashlib now releases the GIL when hashing large buffers
928 (with a hardwired threshold of 2048 bytes), allowing better parallelization
929 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
930
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000931- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
932
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000933- Issue #4738: Each zlib object now has a separate lock, allowing to compress
934 or decompress several streams at once on multi-CPU systems. Also, the GIL
935 is now released when computing the CRC of a large buffer. Patch by ebfe.
936
Georg Brandlb1441c72009-01-03 22:33:39 +0000937- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
938
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000939- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
940
Mark Dickinsone675f082008-12-11 21:56:00 +0000941- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
942 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000943
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000944- Issue #4583: array.array would not always prohibit resizing when a buffer
945 has been exported, resulting in an interpreter crash when accessing the
946 buffer.
947
Martin v. Löwis841edad2008-11-30 10:36:49 +0000948
Jack Diederiche0cbd692009-04-01 04:27:09 +0000949- Issue #5228: Make functools.partial objects can now be pickled.
950
Guilherme Polo9de29af2009-01-28 20:40:48 +0000951Tests
952-----
953
R. David Murraya21e4ca2009-03-31 23:16:50 +0000954- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000955 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000956 from test support, which does the conversion.
957
Guilherme Polo9de29af2009-01-28 20:40:48 +0000958- Issue #5083: New 'gui' resource for regrtest.
959
960
Brett Cannon7317c1e2008-11-25 19:19:17 +0000961Docs
962----
963
Georg Brandl52b92cc2008-05-25 09:43:03 +0000964
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000965**(For information about older versions, consult the HISTORY file.)**