blob: 257762b965e0eac74a6a1a5b0e14e24198935135 [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 Smith58a42242009-04-30 01:00:33 +000015- Issue #1588: Add complex.__format__. For example,
16 format(complex(1, 2./3), '.5') now produces a sensible result.
17
Mark Dickinsond3ca5572009-04-29 18:47:07 +000018- Issue #5864: Fix empty format code formatting for floats so that it
19 never gives more than the requested number of significant digits.
20
Eric Smith6dc46f52009-04-27 20:39:49 +000021- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
22 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
23
Eric Smithcc32a112009-04-26 21:35:14 +000024- Issue #5835: Deprecate PyOS_ascii_formatd.
25
Martin v. Löwis71efeb72009-04-26 01:02:07 +000026- Issue #4971: Fix titlecase for characters that are their own
27 titlecase, but not their own uppercase.
28
Benjamin Peterson193152c2009-04-25 01:08:45 +000029- Issue #5283: Setting __class__ in __del__ caused a segfault.
30
Mark Dickinsonad476da2009-04-23 19:14:16 +000031- Issue #5816: complex(repr(z)) now recovers z exactly, even when
32 z involves nans, infs or negative zeros.
33
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000034- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000035
Mark Dickinsone6a076d2009-04-18 11:48:33 +000036- Issue #1869 (and many duplicates): make round(x, n) correctly
37 rounded for a float x, by using the decimal <-> binary conversions
38 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
39 consistently agrees with format(x, '.2f').
40
Benjamin Petersonae937c02009-04-18 20:54:08 +000041- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
42 some builtin types.
43
Eric Smith0923d1d2009-04-16 20:16:10 +000044- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
45
Eric Smith35e84722009-04-16 20:21:28 +000046- Issue #5515: str.format() type 'n' combined with commas and leading
47 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000048
49- Implement PEP 378, Format Specifier for Thousands Separator, for
50 floats.
51
Mark Dickinson3370cce2009-04-17 22:40:53 +000052- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000053 1e11, not 1e12. This avoids printing 13 significant digits in
54 situations where only 12 of them are correct. Example problem
55 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
56 long time.)
57
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000058- Issue #1580: On most platforms, use a 'short' float repr: for a
59 finite float x, repr(x) now outputs a string based on the shortest
60 sequence of decimal digits that rounds to x. Previous behaviour was
61 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000062 Another minor difference is that the new repr switches to
63 exponential notation at 1e16 instead of the previous 1e17; this
64 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000065
66 There's a new sys attribute sys.float_repr_style, which takes
67 the value 'short' to indicate that we're using short float repr,
68 and 'legacy' if the short float repr isn't available for one
69 reason or another.
70
71 The float repr change involves incorporating David Gay's 'perfect
72 rounding' code into the Python core (it's in Python/dtoa.c). As a
73 secondary consequence, all string-to-float and float-to-string
74 conversions (including all float formatting operations) will be
75 correctly rounded on these platforms.
76
77 See issue 1580 discussions for details of platforms for which
78 this change does not apply.
79
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000080- Issue #5759: float() didn't call __float__ on str subclasses.
81
Georg Brandlabc38772009-04-12 15:51:51 +000082- The string.maketrans() function is deprecated; there is a new static method
83 maketrans() on the bytes and bytearray classes. This removes confusion about
84 the types string.maketrans() is supposed to work with, and mirrors the
85 methods available on the str class.
86
R. David Murraydc6da8a2009-04-09 22:16:43 +000087- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
88 its clarity and its speed.
89
Matthias Klose091c7b12009-04-07 13:24:27 +000090- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
91 to avoid compiler warnings.
92
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000093Installation
94------------
95
96- Issue #5756: Install idle and pydoc with a 3 suffix.
97
Benjamin Petersonbd35b032009-04-04 23:16:41 +000098Library
99-------
100
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000101- Issue #5857: tokenize.tokenize() now returns named tuples.
102
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000103- Issue #4305: ctypes should now build again on mipsel-linux-gnu
104
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000105- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
106 string is already in normalized form, by performing a quick check beforehand.
107 Original patch by Rauli Ruohonen.
108
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000109- Issue #5853: calling a function of the mimetypes module from several threads
110 at once could hit the recursion limit if the mimetypes database hadn't been
111 initialized before.
112
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000113- Issue #5854: Updated __all__ to include some missing names and remove some
114 names which should not be exported.
115
Thomas Heller34596a92009-04-24 20:50:00 +0000116- Issue #3102: All global symbols that the _ctypes extension defines
117 are now prefixed with 'Py' or '_ctypes'.
118
119- Issue #5041: ctypes does now allow pickling wide character.
120
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000121- Issue #5812: For the two-argument form of the Fraction constructor,
122 Fraction(m, n), m and n are permitted to be arbitrary Rational
123 instances.
124
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000125- Issue #5812: Fraction('1e6') is valid: more generally, any string
126 that's valid for float() is now valid for Fraction(), with the
127 exception of strings representing NaNs and infinities.
128
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000129- Issue #5734: BufferedRWPair was poorly tested and had several glaring
130 bugs. Patch by Brian Quinlan.
131
R. David Murray9e94ddf2009-04-13 17:06:33 +0000132- Issue #1161031: fix readwrite select flag handling: POLLPRI now
133 results in a handle_expt_event call, not handle_read_event, and POLLERR
134 and POLLNVAL now call handle_close, not handle_expt_event. Also,
135 dispatcher now has an 'ignore_log_types' attribute for suppressing
136 log messages, which is set to 'warning' by default.
137
Matthias Klosea3d29e82009-04-07 13:13:10 +0000138- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
139 new arguments introduced in 2.5.
140
Walter Dörwald1b08b302009-04-25 14:13:56 +0000141- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
142 makeunicodedata.py and regenerated the Unicode database (This fixes
143 u'\u1d79'.lower() == '\x00').
144
Matthias Klose535336f2009-04-07 13:49:45 +0000145Extension Modules
146-----------------
147
Mark Dickinsonea835e72009-04-19 20:40:33 +0000148- Issue #5463: In struct module, remove deprecated float coercion
149 for integer type codes: struct.pack('L', 0.3) should now raise
150 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
151 The version number has been bumped to 0.3.
152
Matthias Klose535336f2009-04-07 13:49:45 +0000153- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
154 using Berkley-DB.
155
Nick Coghlan47384702009-04-22 16:13:36 +0000156Tests
157-----
158
159- Issue #5354: New test support function import_fresh_module() makes
160 it easy to import both normal and optimised versions of modules.
161 test_heapq and test_warnings have been adjusted to use it, tests for
162 other modules with both C and Python implementations in the stdlib
163 can be adjusted to use it over time.
164
Walter Dörwald4ba80132009-04-25 12:48:43 +0000165- Issue #5837: Certain sequences of calls to set() and unset() for
166 support.EnvironmentVarGuard objects restored the environment variables
167 incorrectly on __exit__.
168
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000169
Benjamin Petersond1735892009-03-07 18:46:21 +0000170What's New in Python 3.1 alpha 2?
171=================================
172
Benjamin Peterson88f14352009-04-04 21:06:52 +0000173*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000174
175Core and Builtins
176-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000177
Eric Smith1e1d7d22009-04-03 22:25:33 +0000178- Implement PEP 378, Format Specifier for Thousands Separator, for
179 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000180
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000181- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
182
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000183- Issue #5499: The 'c' code for argument parsing functions now only accepts a
184 byte, and the 'C' code only accepts a unicode character.
185
Georg Brandl406b3d82009-04-11 21:24:37 +0000186- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
187 when hitting the recursion limit under certain circumstances.
188
Brett Cannon0759dd62009-04-01 18:13:07 +0000189- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
190
Georg Brandlab6f2f62009-03-31 04:16:10 +0000191- Fix a segfault when running test_exceptions with coverage, caused by
192 insufficient checks in accessors of Exception.__context__.
193
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000194- Issue #5604: non-ASCII characters in module name passed to
195 imp.find_module() were converted to UTF-8 while the path is
196 converted to the default filesystem encoding, causing nonsense.
197
Benjamin Peterson09832742009-03-26 17:15:46 +0000198- Issue #5126: str.isprintable() returned False for space characters.
199
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000200- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
201 the end sys.path, for compatibility with the system install of Python.
202
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000203- Issue #4688: Add a heuristic so that tuples and dicts containing only
204 untrackable objects are not tracked by the garbage collector. This can
205 reduce the size of collections and therefore the garbage collection overhead
206 on long-running programs, depending on their particular use of datatypes.
207
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000208- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
209 improve its performance. Long divisions and remainder operations
210 are now between 50% and 150% faster.
211
Mark Dickinsonbd792642009-03-18 20:06:12 +0000212- Issue #4258: Make it possible to use base 2**30 instead of base
213 2**15 for the internal representation of integers, for performance
214 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
215 --enable-big-digits option to configure, which overrides the
216 default. Add sys.int_info structseq to provide information about
217 the internal format.
218
Mark Dickinson081dfee2009-03-18 14:47:41 +0000219- Issue #4474: PyUnicode_FromWideChar now converts characters outside
220 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
221 and sizeof(Py_UNICODE) == 2.
222
Eric Smith8ec90442009-03-14 12:29:34 +0000223- Issue #5237: Allow auto-numbered fields in str.format(). For
224 example: '{} {}'.format(1, 2) == '1 2'.
225
Antoine Pitrou652e7072009-03-13 19:25:20 +0000226- Issue #5392: when a very low recursion limit was set, the interpreter would
227 abort with a fatal error after the recursion limit was hit twice.
228
Matthias Klose042f1332009-04-04 14:32:42 +0000229- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
230 short file names.
231
Benjamin Petersond1735892009-03-07 18:46:21 +0000232Library
233-------
234
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000235- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000236 mailbox.MH.get_message().
237
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000238- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
239 error substitutions from non-strict codec error callbacks in
240 incrementalencoder and StreamWriter.
241
Georg Brandl33c28812009-04-01 23:07:29 +0000242- Issue #5656: Fix the coverage reporting when running the test suite with
243 the -T argument.
244
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000245- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
246
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000247- Issue #5624: Fix the _winreg module name still used in several modules.
248
Benjamin Petersona1b49012009-03-31 23:11:32 +0000249- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
250
Jesse Nollera9314042009-03-31 22:36:44 +0000251- Issue #5619: Multiprocessing children disobey the debug flag and causes
252 popups on windows buildbots. Patch applied to work around this issue.
253
Jesse Noller32d68c22009-03-31 18:48:42 +0000254- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
255
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000256- Issue #5387: Fixed mmap.move crash by integer overflow.
257
Jesse Nollerf8d00852009-03-31 03:25:07 +0000258- Issue #5261: Patch multiprocessing's semaphore.c to support context
259 manager use: "with multiprocessing.Lock()" works now.
260
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000261- Issue #5236: Change time.strptime() to only take strings. Didn't work with
262 bytes already but the failure was non-obvious.
263
Jesse Noller7af4ef82009-03-30 16:47:15 +0000264- Issue #5177: Multiprocessing's SocketListener class now uses
265 socket.SO_REUSEADDR on all connections so that the user no longer needs
266 to wait 120 seconds for the socket to expire.
267
Benjamin Peterson48e24782009-03-29 13:02:52 +0000268- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
269
Antoine Pitrou66994e12009-03-29 00:45:26 +0000270- Issue #1174606: Calling read() without arguments of an unbounded file
271 (typically /dev/zero under Unix) could crash the interpreter.
272
Benjamin Peterson59406a92009-03-26 17:10:29 +0000273- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
274 io.BufferedRandom have been deprecated for removal in Python 3.2.
275
Lars Gustäbel42e00912009-03-22 20:34:29 +0000276- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
277 forever on incomplete input. That caused tarfile.open() to hang when used
278 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
279 partial bzip2 compressed data.
280
Mark Dickinson79f52032009-03-17 23:12:51 +0000281- Issue #2110: Add support for thousands separator and 'n' type
282 specifier to Decimal.__format__
283
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000284- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
285 '>' alignment characters.
286
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000287- The error detection code in FileIO.close() could fail to reflect the `errno`
288 value, and report it as -1 instead.
289
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000290- Issue #5016: FileIO.seekable() could return False if the file position
291 was negative when truncated to a C int. Patch by Victor Stinner.
292
Mark Dickinsonae681df2009-03-21 10:26:31 +0000293Extension Modules
294-----------------
295
Benjamin Petersone099b372009-04-04 17:09:35 +0000296- Issue #5391: mmap now deals exclusively with bytes.
297
Mark Dickinsonae681df2009-03-21 10:26:31 +0000298- Issue #5463: In struct module, remove deprecated overflow wrapping
299 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000300 struct.error instead of returning b'\xff\xff\xff\xff'. The
301 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
302 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000303
Benjamin Petersond1735892009-03-07 18:46:21 +0000304
Benjamin Petersona58a6262009-03-07 16:34:40 +0000305What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000306================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000307
Benjamin Petersona58a6262009-03-07 16:34:40 +0000308*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000309
310Core and Builtins
311-----------------
312
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000313- The io module has been reimplemented in C for speed.
314
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000315- Give dict views an informative __repr__.
316
Eric Smith5e5c0db2009-02-20 14:25:03 +0000317- Issue #5247: Improve error message when unknown format codes are
318 used when using str.format() with str, int, and float arguments.
319
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000320- Issue #5249: time.strftime returned malformed string when format string
321 contained non ascii character on windows.
322
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000323- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
324 source has already been decoded into str.
325
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000326- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
327 rotating the object pointer by 4 bits to the right.
328
Mark Dickinson87ec0852009-02-09 17:15:59 +0000329- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
330 it now forces its argument to double before testing for infinity.
331
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000332- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
333 returns a non-number type.
334
Benjamin Peterson87618552009-02-08 15:00:52 +0000335- Issue #5182: Removed memoryview.__str__.
336
Mark Dickinsonc008a172009-02-01 13:59:22 +0000337- Issue #1717: Removed builtin cmp() function, dropped tp_compare
338 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000339 the type definition cmpfunc. The tp_compare slot has been renamed
340 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000341
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000342- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000343 were suppressing all exceptions. These include list() and bytearray().
344
Mark Dickinson1124e712009-01-28 21:25:58 +0000345- Issue #4707: round(x, n) now returns an integer if x is an integer.
346 Previously it returned a float.
347
Antoine Pitroub52ec782009-01-25 16:34:23 +0000348- Issue #4753: By enabling a configure option named '--with-computed-gotos'
349 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
350 evaluation loop is compiled with a new dispatch mechanism which gives
351 speedups of up to 20%, depending on the system, on various benchmarks.
352
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000353- Issue #4874: Most builtin decoders now reject unicode input.
354
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000355- Issue #4842: Don't allow trailing 'L' when constructing an integer
356 from a string.
357
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000358- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
359
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000360- Issue #4838: When a module is deallocated, free the memory backing the
361 optional module state data.
362
Mark Dickinson8055afd2009-01-17 10:04:45 +0000363- Issue #4910: Rename nb_long slot to nb_reserved, and change its
364 type to (void *).
365
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000366- Issue #4935: The overflow checking code in the expandtabs() method common
367 to str, bytes and bytearray could be optimized away by the compiler, letting
368 the interpreter segfault instead of raising an error.
369
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000370- Issue #3720: Fix a crash when an iterator modifies its class and removes its
371 __next__ method.
372
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000373- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
374 function no longer attempt to call the __long__ slot to convert an object
375 to an integer. Only the __int__ and __trunc__ slots are examined.
376
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000377- Issue #4893: Use NT threading on CE.
378
Martin v. Löwisec59d042009-01-12 07:59:10 +0000379- Issue #4915: Port sysmodule to Windows CE.
380
Antoine Pitrouab868312009-01-10 15:40:25 +0000381- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
382 common cases are optimized thanks to a dedicated fast path and a moderate
383 amount of loop unrolling.
384
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000385- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
386 collecting the oldest generation) so that allocating lots of objects without
387 destroying them does not show quadratic performance. Based on a proposal by
388 Martin von Löwis at
389 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
390
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000391- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000392 having been closed (for instance, a read() call could return some
393 previously buffered data). Patch by Dmitry Vasiliev.
394
Antoine Pitrou05608432009-01-09 18:53:14 +0000395- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
396 flag to work properly. Furthermore, when specifying -u, the text stdout
397 and stderr streams have line-by-line buffering enabled (the default being
398 to buffer arbitrary chunks of data).
399
Raymond Hettinger35631532009-01-09 03:58:09 +0000400- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
401 instead of ints (reducing its size from 4 to 8 times thereby reducing
402 Python's overall memory).
403
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000404- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
405 an existing .py counterpart, override the co_filename attributes of all
406 code objects if the original filename is obsolete (which can happen if the
407 file has been renamed, moved, or if it is accessed through different paths).
408 Patch by Ziga Seilnacht and Jean-Paul Calderone.
409
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000410- Issue #4580: Fix slicing of memoryviews when the item size is greater than
411 one byte. Also fixes the meaning of len() so that it returns the number of
412 items, rather than the size in bytes.
413
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000414- Issue #4075: Use OutputDebugStringW in Py_FatalError.
415
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000416- Issue #4747: When the terminal does not use utf-8, executing a script with
417 non-ascii characters in its name could fail with a "SyntaxError: None" error.
418
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000419- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000420 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000421
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000422- Issue #3680: Reference cycles created through a dict, set or deque iterator
423 did not get collected.
424
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000425- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
426 where the tp_hash and tp_dict slots are both NULL.
427
Georg Brandlccc47b62008-12-28 11:44:14 +0000428- Issue #4759: None is now allowed as the first argument of
429 bytearray.translate(). It was always allowed for bytes.translate().
430
Skip Montanaro80072cb2008-12-23 03:51:14 +0000431- Added test case to ensure attempts to read from a file opened for writing
432 fail.
433
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000434- Issue #3106: Speedup some comparisons (str/str and int/int).
435
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000436- Issue #2183: Simplify and optimize bytecode for list, dict and set
437 comprehensions. Original patch for list comprehensions by Neal Norwitz.
438
Antoine Pitrou621601a2008-12-17 23:18:19 +0000439- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
440 print elapsed times, not only when some objects are uncollectable /
441 unreachable. Original patch by Neil Schemenauer.
442
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000443- Issue #3439: Add a bit_length method to int.
444
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000445- Issue #2173: When getting device encoding, check that return value of
446 nl_langinfo is not the empty string. This was causing silent build
447 failures on OS X.
448
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000449- Issue #4597: Fixed several opcodes that weren't always propagating
450 exceptions.
451
452- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000453 context manager returns a value that cannot be converted to a bool.
454
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000455- Issue #4445: Replace "sizeof(PyBytesObject)" with
456 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
457 bytes instances. On a typical machine this saves 3 bytes of memory
458 (on average) per allocation of a bytes instance.
459
Christian Heimesa872de52008-12-05 08:26:55 +0000460- Issue #4533: File read operation was dreadfully slow due to a slowly
461 growing read buffer. Fixed by using the same growth rate algorithm as
462 Python 2.x.
463
Antoine Pitrou5504e892008-12-06 21:27:53 +0000464- Issue #4509: Various issues surrounding resize of bytearray objects to
465 which there are buffer exports (e.g. memoryview instances).
466
Georg Brandlf9734072008-12-07 15:30:06 +0000467- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
468 method on file objects with closefd=False. The file descriptor is still
469 kept open but the file object behaves like a closed file. The ``FileIO``
470 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000471
Antoine Pitroubc420402008-12-07 20:14:49 +0000472- Issue #4569: Interpreter crash when mutating a memoryview with an item size
473 larger than 1.
474
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000475- Issue #4748: Lambda generators no longer return a value.
476
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000477- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
478
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000479Library
480-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000481
R. David Murrayb507d2e2009-04-29 15:34:32 +0000482- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
483
Tarek Ziadé81623822009-04-29 08:07:44 +0000484- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
485 anymore.
486
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000487- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000488 sysconfig.get_config_vars.
489
Tarek Ziadé23336082009-04-25 12:39:56 +0000490- Issue #4951: Fixed failure in test_httpservers.
491
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000492- Issue #5795: Fixed test_distutils failure on Debian ppc.
493
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000494- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
495
Georg Brandl1f9fa312009-04-27 16:42:58 +0000496- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
497 a value in SafeConfigParser.
498
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000499- Issue #5732: added a new command in Distutils: check.
500
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000501- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000502 platforms. Initial patch by Paul Moore.
503
Tarek Ziadéf6370502009-04-05 22:57:21 +0000504- Issue #5095: Added bdist_msi to the list of bdist supported formats.
505 Initial fix by Steven Bethard.
506
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000507- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
508 Initial fix by Wayne Davison.
509
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000510- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000511
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000512- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000513
Brett Cannonf47e84c2009-04-01 16:06:01 +0000514- Issue #1665206 (partially): Move imports in cgitb to the top of the module
515 instead of performing them in functions. Helps prevent import deadlocking in
516 threads.
517
R. David Murraye59482e2009-04-01 03:42:00 +0000518- Issue #2522: locale.format now checks its first argument to ensure it has
519 been passed only one pattern, avoiding mysterious errors where it appeared
520 that it was failing to do localization.
521
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000522- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
523 Brandl.
524
Antoine Pitrou350370c2009-03-14 00:13:13 +0000525- Issue #1222: locale.format() bug when the thousands separator is a space
526 character.
527
Tarek Ziadé516db942009-03-11 12:52:00 +0000528- Issue #5472: Fixed distutils.test_util tear down. Original patch by
529 Tim Golden.
530
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000531- collections.deque() objects now have a read-only attribute called maxlen.
532
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000533- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
534 it is has been populated and properly configured in order to prevent
535 window flashing.
536
Guilherme Polo56f5be52009-03-07 01:54:57 +0000537- Issue #4792: Prevent a segfault in _tkinter by using the
538 guaranteed to be safe interp argument given to the PythonCmd in place of
539 the Tcl interpreter taken from a PythonCmd_ClientData.
540
541- Issue #5193: Guarantee that tkinter.Text.search returns a string.
542
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000543- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
544 Original patch by Akira Kitada.
545
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000546- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
547
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000548- Issue #5385: Fixed mmap crash after resize failure on windows.
549
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000550- Issue #5179: Fixed subprocess handle leak on failure on windows.
551
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000552- PEP 372: Added collections.OrderedDict().
553
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000554- The _asdict() for method for namedtuples now returns an OrderedDict().
555
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000556- configparser now defaults to using an ordered dictionary.
557
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000558- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
559 import guess_extension`` was used.
560
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000561- Issue #1733986: Fixed mmap crash in accessing elements of second map object
562 with same tagname but larger size than first map. (Windows)
563
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000564- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
565 overrun.
566
Tarek Ziadéf0721222009-02-28 10:16:43 +0000567- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
568 bdist_rpm command.
569
570- Issue #5378: added --quiet option to Distutils bdist_rpm command.
571
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000572- Issue #5052: make Distutils compatible with 2.3 again.
573
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000574- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
575 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000576
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000577- Issue #5287: Add exception handling around findCaller() call to help out
578 IronPython.
579
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000580- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
581 The file was resized to wrong size.
582
583- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
584
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000585- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000586 from the package_data and the data_files metadata.
587
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000588- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000589 support.TempdirManager, to avoid writing in the tests directory.
590
Tarek Ziadé68c50952009-02-13 23:04:17 +0000591- Issue #4524: distutils build_script command failed with --with-suffix=3.
592 Initial patch by Amaury Forgeot d'Arc.
593
Tarek Ziadé811d6242009-02-13 22:26:15 +0000594- Issue #2461: added tests for distutils.util
595
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000596- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
597 which inherited from numbers.py which did not have __slots__ defined. The
598 numbers hierarchy now has its own __slots__ declarations.
599
Antoine Pitroub353c122009-02-11 00:39:14 +0000600- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
601 encoding.
602
Thomas Heller465c8022009-02-10 18:59:04 +0000603- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
604 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
605
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000606- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
607 under NT and OS2. Patch by Philip Jenvey.
608
Brett Cannonbefb14f2009-02-10 02:10:16 +0000609- Issue #5128: Make compileall properly inspect bytecode to determine if needs
610 to be recreated. This avoids a timing hole thanks to the old reliance on the
611 ctime of the files involved.
612
Guilherme Polob681df42009-02-09 22:33:59 +0000613- Issue #5122: Synchronize tk load failure check to prevent a potential
614 deadlock.
615
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000616- Issue #1818: collections.namedtuple() now supports a keyword argument
617 'rename' which lets invalid fieldnames be automatically converted to
618 positional names in the form, _1, _2, ...
619
Guilherme Poloae098992009-02-09 16:44:24 +0000620- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
621
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000622- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
623 public documented method ``ZipImporter.get_filename()``.
624
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000625- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
626 the execution of packages by looking for and executing a ``__main__``
627 submodule when a package name is supplied. Initial patch by Andi
628 Vajda.
629
Guilherme Polo491aee22009-02-06 23:16:11 +0000630- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
631 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
632 Tkapp_Call when calling from a thread different than the one that created
633 the Tcl interpreter. Patch by Robert Hancock.
634
Eric Smith0e5b5622009-02-06 01:32:42 +0000635- Issue #4285: Change sys.version_info to be a named tuple. Patch by
636 Ross Light.
637
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000638- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000639 environment/Makefile. Patch by Douglas Greiman.
640
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000641- Issue #1276768: The verbose option was not used in the code of
642 distutils.file_util and distutils.dir_util.
643
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000644- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000645 --enabled-shared activated. Initial patch by Dave Peterson.
646
Guilherme Polo7f423952009-02-02 21:17:09 +0000647- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
648
Raymond Hettinger85602262009-02-03 04:19:10 +0000649- The shelve module now defaults to pickle protocol 3.
650
Brett Cannone61426e2009-01-30 01:31:34 +0000651- Fix a bug in the trace module where a bytes object from co_lnotab had its
652 items being passed through ord().
653
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000654- Issue #2047: shutil.move() could believe that its destination path was
655 inside its source path if it began with the same letters (e.g. "src" vs.
656 "src.new").
657
Guilherme Polo5f238482009-01-28 14:41:10 +0000658- Added the ttk module. See issue #2983: Ttk support for Tkinter.
659
Raymond Hettinger89e12962009-01-26 02:09:03 +0000660- Removed isSequenceType(), isMappingType, and isNumberType() from the
661 operator module; use the abstract base classes instead. Also removed
662 the repeat() function; use mul() instead.
663
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000664- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000665 collections.namedtuple() relied on __name__ being defined.
666
667- Backport importlib from Python 3.1. Only the import_module() function has
668 been backported to help facilitate transitions from 2.7 to 3.1.
669
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000670- Issue #1885: distutils. When running sdist with --formats=tar,gztar
671 the tar file was overriden by the gztar one.
672
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000673- Issue #4863: distutils.mwerkscompiler has been removed.
674
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000675- Added a new itertools functions: combinations_with_replacement()
676 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000677
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000678- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000679 allowed non-integer arguments.
680
Jesse Noller41faa542009-01-25 03:45:53 +0000681- Fix and properly document the multiprocessing module's logging
682 support, expose the internal levels and provide proper usage
683 examples.
684
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000685- Issue #1672332: fix unpickling of subnormal floats, which was
686 producing a ValueError on some platforms.
687
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000688- Issue #3881: Help Tcl to load even when started through the
689 unreadable local symlink to "Program Files" on Vista.
690
Martin v. Löwis59e47792009-01-24 14:10:07 +0000691- Issue #4710: Extract directories properly in the zipfile module;
692 allow adding directories to a zipfile.
693
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000694- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000695 --without-threads argument. When this occurs, _multiprocessing will
696 be disabled, and not compiled.
697
Antoine Pitrou08838b62009-01-21 00:55:13 +0000698- Issue #5008: When a file is opened in append mode with the new IO library,
699 do an explicit seek to the end of file (so that e.g. tell() returns the
700 file size rather than 0). This is consistent with the behaviour of the
701 traditional 2.x file object.
702
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000703- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
704 parameter was set.
705
Mark Dickinson8dd05142009-01-20 20:43:58 +0000706- Issue #4842: Always append a trailing 'L' when pickling longs using
707 pickle protocol 0. When reading, the 'L' is optional.
708
Brett Cannonafccd632009-01-20 02:21:27 +0000709- Add the importlib package.
710
Jesse Noller9a0fc972009-01-18 21:12:58 +0000711- Issue #4301: Patch the logging module to add processName support, remove
712 _check_logger_class from multiprocessing.
713
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000714- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000715 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000716
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000717- Issue #4959: inspect.formatargspec now works for keyword only arguments
718 without defaults.
719
Jesse Noller6214edd2009-01-19 16:23:53 +0000720- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
721 for *nix machines for negative handles and large int handles. Without this check
722 it is possible to segfault the interpreter.
723
Jesse Nollerb0516a62009-01-18 03:11:38 +0000724- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
725 in sharedctypes.py.
726
727- Issue #1225107: inspect.isclass() returned True for instances with a custom
728 __getattr__.
729
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000730- Issue #3826 and #4791: The socket module now closes the underlying socket
731 appropriately when it is being used via socket.makefile() objects
732 rather than delaying the close by waiting for garbage collection to do it.
733
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000734- Issue #1696199: Add collections.Counter() for rapid and convenient
735 counting.
736
Antoine Pitrou308705e2009-01-10 16:22:51 +0000737- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
738
Thomas Heller5e4e4272009-01-08 09:34:20 +0000739- Issue #4867: Fixed a crash in ctypes when passing a string to a
740 function without defining argtypes.
741
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000742- Issue #4272: Add an optional argument to the GzipFile constructor to override
743 the timestamp in the gzip stream. The default value remains the current time.
744 The information can be used by e.g. gunzip when decompressing. Patch by
745 Jacques Frechet.
746
Mark Dickinson315a20a2009-01-04 21:34:18 +0000747- Restore Python 2.3 compatibility for decimal.py.
748
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000749- Issue #3638: Remove functions from _tkinter module level that depend on
750 TkappObject to work with multiple threads.
751
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000752- Issue #4718: Adapt the wsgiref package so that it actually works with
753 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000754 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
755
Raymond Hettinger771ed762009-01-03 19:20:32 +0000756- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
757 to the decimal module.
758
Georg Brandl3a9b0622009-01-03 22:07:57 +0000759- Fractions.from_float() no longer loses precision for integers too big to
760 cast as floats.
761
Mark Dickinsonf9236412009-01-02 23:23:21 +0000762- Issue #4812: add missing underscore prefix to some internal-use-only
763 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
764
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000765- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000766 did unnecessary work in the common case where no key function was specified.
767
Georg Brandlb1441c72009-01-03 22:33:39 +0000768- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
769 the function is not a generator.
770
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000771- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
772 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000773
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000774- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000775 function. Original patch by Thomas Heller.
776
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000777- Issue #3767: Convert Tk object to string in tkColorChooser.
778
Martin v. Löwise354d782008-12-29 16:03:04 +0000779- Issue #3248: Allow placing ScrolledText in a PanedWindow.
780
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000781- Issue #4444: Allow assertRaises() to be used as a context handler, so that
782 the code under test can be written inline if more practical.
783
Georg Brandldb7b6b92009-01-01 15:53:14 +0000784- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
785 works as expected in the interactive environment.
786
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000787- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
788 Gabriel Genellina.
789
Antoine Pitrou180a3362008-12-14 16:36:46 +0000790- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
791 boundary.
792
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000793- Issue #4223: inspect.getsource() will now correctly display source code
794 for packages loaded via zipimport (or any other conformant PEP 302
795 loader). Original patch by Alexander Belopolsky.
796
797- Issue #4201: pdb can now access and display source code loaded via
798 zipimport (or any other conformant PEP 302 loader). Original patch by
799 Alexander Belopolsky.
800
801- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
802 302 conformant loader) will now work correctly in most cases (they
803 are still subject to the constraints that exist for all code running
804 from inside a module loaded via a PEP 302 loader and attempting to
805 perform IO operations based on __file__). Original patch by
806 Alexander Belopolsky.
807
808- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
809 allows backporting to maintenance branches. Original patch by
810 Alexander Belopolsky.
811
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000812- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
813 a non-ASCII letter.
814
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000815- Issue #4616: TarFile.utime(): Restore directory times on Windows.
816
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000817- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
818 codec cannot be found. This is for compatibility with the builtin behavior.
819
Facundo Batista708d5812008-12-11 04:20:07 +0000820- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
821 give correct results in the case where one argument is a quiet NaN
822 and the other is a finite number that requires rounding.
823
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000824- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
825 libs.
826
Georg Brandlf9734072008-12-07 15:30:06 +0000827- Added the subprocess.check_call_output() convenience function to get output
828 from a subprocess on success or raise an exception on error.
829
830- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
831 support unusual filenames (such as those containing semi-colons) in
832 Content-Disposition headers.
833
834- Issue #4384: Added logging integration with warnings module using
835 captureWarnings(). This change includes a NullHandler which does nothing;
836 it will be of use to library developers who want to avoid the "No handlers
837 could be found for logger XXX" message which can appear if the library user
838 doesn't configure logging.
839
840- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
841 exception.
842
Georg Brandleee31162008-12-07 15:15:22 +0000843- Issue #4529: fix the parser module's validation of try-except-finally
844 statements.
845
846- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
847 not a malformed option.
848
849- Added the subprocess.check_output() convenience function to get output
850 from a subprocess on success or raise an exception on error.
851
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000852- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
853 the corresponding tests now pass.
854
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000855- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
856 it was calling the wrong open() function.
857
Fred Drake9a0a65b2008-12-04 19:24:50 +0000858- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
859 support unusual filenames (such as those containing semi-colons) in
860 Content-Disposition headers.
861
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000862- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
863 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
864
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000865- Issue #5104: The socket module now raises OverflowError when 16-bit port and
866 protocol numbers are supplied outside the allowed 0-65536 range on bind()
867 and getservbyport().
868
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000869Tools/Demos
870-----------
871
Antoine Pitrou8a681222009-02-07 17:13:31 +0000872- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
873 and make it 2.6-compatible.
874
Guilherme Poloa7d27972009-01-28 16:06:51 +0000875- Ttk demos added in Demo/tkinter/ttk/
876
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000877- Issue #4677: add two list comprehension tests to pybench.
878
Georg Brandlb1441c72009-01-03 22:33:39 +0000879
880Build
881-----
882
Matthias Klose55708cc2009-04-30 08:06:49 +0000883- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
884 the order that backends for the dbm extension are checked.
885
Matthias Klose906785c2009-02-22 23:18:38 +0000886- Link the shared python library with $(MODLIBS).
887
Martin v. Löwis11f72102009-02-10 13:13:30 +0000888- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
889
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000890- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
891
Martin v. Löwise97637d2009-01-11 09:45:11 +0000892- Issue #4895: Use _strdup on Windows CE.
893
Georg Brandlb1441c72009-01-03 22:33:39 +0000894- Issue #4472: "configure --enable-shared" now works on OSX
895
896- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
897
898- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
899
900- Issue #4289: Remove Cancel button from AdvancedDlg.
901
902- Issue #1656675: Register a drop handler for .py* files on Windows.
903
904- Issue #4120: Exclude manifest from extension modules in VS2008.
905
906- Issue #4091: Install pythonxy.dll in system32 again.
907
908- Issue #4018: Disable "for me" installations on Vista.
909
910- Issue #3758: Add ``patchcheck`` build target to .PHONY.
911
912- Issue #4204: Fixed module build errors on FreeBSD 4.
913
914
915C-API
916-----
917
Mark Dickinson21776072009-02-10 16:13:25 +0000918- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
919 for negative arguments. Previously, it raised TypeError.
920
Georg Brandlb1441c72009-01-03 22:33:39 +0000921- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
922
923- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
924 the GIL is released, or owned by another thread.
925
926- Issue #4122: On Windows, fix a compilation error when using the
927 Py_UNICODE_ISSPACE macro in an extension module.
928
929
Mark Dickinsone675f082008-12-11 21:56:00 +0000930Extension Modules
931-----------------
932
Gregory P. Smith365a1862009-02-12 07:35:29 +0000933- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
934 supporting objects as input no matter how it was compiled (built in
935 implementations or external openssl library).
936
Mark Dickinson29500f62009-01-15 15:36:10 +0000937- Issue #4397: Fix occasional test_socket failure on OS X.
938
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000939- Issue #4279: Fix build of parsermodule under Cygwin.
940
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000941- Issue #4751: hashlib now releases the GIL when hashing large buffers
942 (with a hardwired threshold of 2048 bytes), allowing better parallelization
943 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
944
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000945- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
946
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000947- Issue #4738: Each zlib object now has a separate lock, allowing to compress
948 or decompress several streams at once on multi-CPU systems. Also, the GIL
949 is now released when computing the CRC of a large buffer. Patch by ebfe.
950
Georg Brandlb1441c72009-01-03 22:33:39 +0000951- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
952
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000953- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
954
Mark Dickinsone675f082008-12-11 21:56:00 +0000955- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
956 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000957
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000958- Issue #4583: array.array would not always prohibit resizing when a buffer
959 has been exported, resulting in an interpreter crash when accessing the
960 buffer.
961
Martin v. Löwis841edad2008-11-30 10:36:49 +0000962
Jack Diederiche0cbd692009-04-01 04:27:09 +0000963- Issue #5228: Make functools.partial objects can now be pickled.
964
Guilherme Polo9de29af2009-01-28 20:40:48 +0000965Tests
966-----
967
R. David Murraya21e4ca2009-03-31 23:16:50 +0000968- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000969 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000970 from test support, which does the conversion.
971
Guilherme Polo9de29af2009-01-28 20:40:48 +0000972- Issue #5083: New 'gui' resource for regrtest.
973
974
Brett Cannon7317c1e2008-11-25 19:19:17 +0000975Docs
976----
977
Georg Brandl52b92cc2008-05-25 09:43:03 +0000978
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000979**(For information about older versions, consult the HISTORY file.)**