blob: 3e8f5e6478e3fd572962cb974faecd7e3df51c3b [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
Mark Dickinsonf489caf2009-05-01 11:42:00 +000015- Issue #5859: Remove length restrictions for float formatting:
16 '%.67f' % 12.34 and '%.120e' % 12.34 no longer raise an exception.
17
Eric Smith58a42242009-04-30 01:00:33 +000018- Issue #1588: Add complex.__format__. For example,
19 format(complex(1, 2./3), '.5') now produces a sensible result.
20
Mark Dickinsond3ca5572009-04-29 18:47:07 +000021- Issue #5864: Fix empty format code formatting for floats so that it
22 never gives more than the requested number of significant digits.
23
Eric Smith6dc46f52009-04-27 20:39:49 +000024- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
25 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
26
Eric Smithcc32a112009-04-26 21:35:14 +000027- Issue #5835: Deprecate PyOS_ascii_formatd.
28
Martin v. Löwis71efeb72009-04-26 01:02:07 +000029- Issue #4971: Fix titlecase for characters that are their own
30 titlecase, but not their own uppercase.
31
Benjamin Peterson193152c2009-04-25 01:08:45 +000032- Issue #5283: Setting __class__ in __del__ caused a segfault.
33
Mark Dickinsonad476da2009-04-23 19:14:16 +000034- Issue #5816: complex(repr(z)) now recovers z exactly, even when
35 z involves nans, infs or negative zeros.
36
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000037- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000038
Mark Dickinsone6a076d2009-04-18 11:48:33 +000039- Issue #1869 (and many duplicates): make round(x, n) correctly
40 rounded for a float x, by using the decimal <-> binary conversions
41 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
42 consistently agrees with format(x, '.2f').
43
Benjamin Petersonae937c02009-04-18 20:54:08 +000044- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
45 some builtin types.
46
Eric Smith0923d1d2009-04-16 20:16:10 +000047- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
48
Eric Smith35e84722009-04-16 20:21:28 +000049- Issue #5515: str.format() type 'n' combined with commas and leading
50 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000051
52- Implement PEP 378, Format Specifier for Thousands Separator, for
53 floats.
54
Mark Dickinson3370cce2009-04-17 22:40:53 +000055- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000056 1e11, not 1e12. This avoids printing 13 significant digits in
57 situations where only 12 of them are correct. Example problem
58 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
59 long time.)
60
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000061- Issue #1580: On most platforms, use a 'short' float repr: for a
62 finite float x, repr(x) now outputs a string based on the shortest
63 sequence of decimal digits that rounds to x. Previous behaviour was
64 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000065 Another minor difference is that the new repr switches to
66 exponential notation at 1e16 instead of the previous 1e17; this
67 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000068
69 There's a new sys attribute sys.float_repr_style, which takes
70 the value 'short' to indicate that we're using short float repr,
71 and 'legacy' if the short float repr isn't available for one
72 reason or another.
73
74 The float repr change involves incorporating David Gay's 'perfect
75 rounding' code into the Python core (it's in Python/dtoa.c). As a
76 secondary consequence, all string-to-float and float-to-string
77 conversions (including all float formatting operations) will be
78 correctly rounded on these platforms.
79
80 See issue 1580 discussions for details of platforms for which
81 this change does not apply.
82
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000083- Issue #5759: float() didn't call __float__ on str subclasses.
84
Georg Brandlabc38772009-04-12 15:51:51 +000085- The string.maketrans() function is deprecated; there is a new static method
86 maketrans() on the bytes and bytearray classes. This removes confusion about
87 the types string.maketrans() is supposed to work with, and mirrors the
88 methods available on the str class.
89
R. David Murraydc6da8a2009-04-09 22:16:43 +000090- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
91 its clarity and its speed.
92
Matthias Klose091c7b12009-04-07 13:24:27 +000093- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
94 to avoid compiler warnings.
95
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000096Installation
97------------
98
99- Issue #5756: Install idle and pydoc with a 3 suffix.
100
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000101Library
102-------
103
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000104- Issue #5857: tokenize.tokenize() now returns named tuples.
105
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000106- Issue #4305: ctypes should now build again on mipsel-linux-gnu
107
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000108- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
109 string is already in normalized form, by performing a quick check beforehand.
110 Original patch by Rauli Ruohonen.
111
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000112- Issue #5853: calling a function of the mimetypes module from several threads
113 at once could hit the recursion limit if the mimetypes database hadn't been
114 initialized before.
115
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000116- Issue #5854: Updated __all__ to include some missing names and remove some
117 names which should not be exported.
118
Thomas Heller34596a92009-04-24 20:50:00 +0000119- Issue #3102: All global symbols that the _ctypes extension defines
120 are now prefixed with 'Py' or '_ctypes'.
121
122- Issue #5041: ctypes does now allow pickling wide character.
123
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000124- Issue #5812: For the two-argument form of the Fraction constructor,
125 Fraction(m, n), m and n are permitted to be arbitrary Rational
126 instances.
127
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000128- Issue #5812: Fraction('1e6') is valid: more generally, any string
129 that's valid for float() is now valid for Fraction(), with the
130 exception of strings representing NaNs and infinities.
131
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000132- Issue #5734: BufferedRWPair was poorly tested and had several glaring
133 bugs. Patch by Brian Quinlan.
134
R. David Murray9e94ddf2009-04-13 17:06:33 +0000135- Issue #1161031: fix readwrite select flag handling: POLLPRI now
136 results in a handle_expt_event call, not handle_read_event, and POLLERR
137 and POLLNVAL now call handle_close, not handle_expt_event. Also,
138 dispatcher now has an 'ignore_log_types' attribute for suppressing
139 log messages, which is set to 'warning' by default.
140
Matthias Klosea3d29e82009-04-07 13:13:10 +0000141- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
142 new arguments introduced in 2.5.
143
Walter Dörwald1b08b302009-04-25 14:13:56 +0000144- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
145 makeunicodedata.py and regenerated the Unicode database (This fixes
146 u'\u1d79'.lower() == '\x00').
147
Matthias Klose535336f2009-04-07 13:49:45 +0000148Extension Modules
149-----------------
150
Mark Dickinsonea835e72009-04-19 20:40:33 +0000151- Issue #5463: In struct module, remove deprecated float coercion
152 for integer type codes: struct.pack('L', 0.3) should now raise
153 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
154 The version number has been bumped to 0.3.
155
Matthias Klose535336f2009-04-07 13:49:45 +0000156- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
157 using Berkley-DB.
158
Nick Coghlan47384702009-04-22 16:13:36 +0000159Tests
160-----
161
162- Issue #5354: New test support function import_fresh_module() makes
163 it easy to import both normal and optimised versions of modules.
164 test_heapq and test_warnings have been adjusted to use it, tests for
165 other modules with both C and Python implementations in the stdlib
166 can be adjusted to use it over time.
167
Walter Dörwald4ba80132009-04-25 12:48:43 +0000168- Issue #5837: Certain sequences of calls to set() and unset() for
169 support.EnvironmentVarGuard objects restored the environment variables
170 incorrectly on __exit__.
171
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000172
Benjamin Petersond1735892009-03-07 18:46:21 +0000173What's New in Python 3.1 alpha 2?
174=================================
175
Benjamin Peterson88f14352009-04-04 21:06:52 +0000176*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000177
178Core and Builtins
179-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000180
Eric Smith1e1d7d22009-04-03 22:25:33 +0000181- Implement PEP 378, Format Specifier for Thousands Separator, for
182 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000183
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000184- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
185
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000186- Issue #5499: The 'c' code for argument parsing functions now only accepts a
187 byte, and the 'C' code only accepts a unicode character.
188
Georg Brandl406b3d82009-04-11 21:24:37 +0000189- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
190 when hitting the recursion limit under certain circumstances.
191
Brett Cannon0759dd62009-04-01 18:13:07 +0000192- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
193
Georg Brandlab6f2f62009-03-31 04:16:10 +0000194- Fix a segfault when running test_exceptions with coverage, caused by
195 insufficient checks in accessors of Exception.__context__.
196
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000197- Issue #5604: non-ASCII characters in module name passed to
198 imp.find_module() were converted to UTF-8 while the path is
199 converted to the default filesystem encoding, causing nonsense.
200
Benjamin Peterson09832742009-03-26 17:15:46 +0000201- Issue #5126: str.isprintable() returned False for space characters.
202
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000203- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
204 the end sys.path, for compatibility with the system install of Python.
205
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000206- Issue #4688: Add a heuristic so that tuples and dicts containing only
207 untrackable objects are not tracked by the garbage collector. This can
208 reduce the size of collections and therefore the garbage collection overhead
209 on long-running programs, depending on their particular use of datatypes.
210
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000211- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
212 improve its performance. Long divisions and remainder operations
213 are now between 50% and 150% faster.
214
Mark Dickinsonbd792642009-03-18 20:06:12 +0000215- Issue #4258: Make it possible to use base 2**30 instead of base
216 2**15 for the internal representation of integers, for performance
217 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
218 --enable-big-digits option to configure, which overrides the
219 default. Add sys.int_info structseq to provide information about
220 the internal format.
221
Mark Dickinson081dfee2009-03-18 14:47:41 +0000222- Issue #4474: PyUnicode_FromWideChar now converts characters outside
223 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
224 and sizeof(Py_UNICODE) == 2.
225
Eric Smith8ec90442009-03-14 12:29:34 +0000226- Issue #5237: Allow auto-numbered fields in str.format(). For
227 example: '{} {}'.format(1, 2) == '1 2'.
228
Antoine Pitrou652e7072009-03-13 19:25:20 +0000229- Issue #5392: when a very low recursion limit was set, the interpreter would
230 abort with a fatal error after the recursion limit was hit twice.
231
Matthias Klose042f1332009-04-04 14:32:42 +0000232- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
233 short file names.
234
Benjamin Petersond1735892009-03-07 18:46:21 +0000235Library
236-------
237
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000238- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000239 mailbox.MH.get_message().
240
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000241- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
242 error substitutions from non-strict codec error callbacks in
243 incrementalencoder and StreamWriter.
244
Georg Brandl33c28812009-04-01 23:07:29 +0000245- Issue #5656: Fix the coverage reporting when running the test suite with
246 the -T argument.
247
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000248- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
249
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000250- Issue #5624: Fix the _winreg module name still used in several modules.
251
Benjamin Petersona1b49012009-03-31 23:11:32 +0000252- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
253
Jesse Nollera9314042009-03-31 22:36:44 +0000254- Issue #5619: Multiprocessing children disobey the debug flag and causes
255 popups on windows buildbots. Patch applied to work around this issue.
256
Jesse Noller32d68c22009-03-31 18:48:42 +0000257- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
258
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000259- Issue #5387: Fixed mmap.move crash by integer overflow.
260
Jesse Nollerf8d00852009-03-31 03:25:07 +0000261- Issue #5261: Patch multiprocessing's semaphore.c to support context
262 manager use: "with multiprocessing.Lock()" works now.
263
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000264- Issue #5236: Change time.strptime() to only take strings. Didn't work with
265 bytes already but the failure was non-obvious.
266
Jesse Noller7af4ef82009-03-30 16:47:15 +0000267- Issue #5177: Multiprocessing's SocketListener class now uses
268 socket.SO_REUSEADDR on all connections so that the user no longer needs
269 to wait 120 seconds for the socket to expire.
270
Benjamin Peterson48e24782009-03-29 13:02:52 +0000271- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
272
Antoine Pitrou66994e12009-03-29 00:45:26 +0000273- Issue #1174606: Calling read() without arguments of an unbounded file
274 (typically /dev/zero under Unix) could crash the interpreter.
275
Benjamin Peterson59406a92009-03-26 17:10:29 +0000276- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
277 io.BufferedRandom have been deprecated for removal in Python 3.2.
278
Lars Gustäbel42e00912009-03-22 20:34:29 +0000279- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
280 forever on incomplete input. That caused tarfile.open() to hang when used
281 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
282 partial bzip2 compressed data.
283
Mark Dickinson79f52032009-03-17 23:12:51 +0000284- Issue #2110: Add support for thousands separator and 'n' type
285 specifier to Decimal.__format__
286
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000287- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
288 '>' alignment characters.
289
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000290- The error detection code in FileIO.close() could fail to reflect the `errno`
291 value, and report it as -1 instead.
292
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000293- Issue #5016: FileIO.seekable() could return False if the file position
294 was negative when truncated to a C int. Patch by Victor Stinner.
295
Mark Dickinsonae681df2009-03-21 10:26:31 +0000296Extension Modules
297-----------------
298
Benjamin Petersone099b372009-04-04 17:09:35 +0000299- Issue #5391: mmap now deals exclusively with bytes.
300
Mark Dickinsonae681df2009-03-21 10:26:31 +0000301- Issue #5463: In struct module, remove deprecated overflow wrapping
302 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000303 struct.error instead of returning b'\xff\xff\xff\xff'. The
304 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
305 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000306
Benjamin Petersond1735892009-03-07 18:46:21 +0000307
Benjamin Petersona58a6262009-03-07 16:34:40 +0000308What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000309================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000310
Benjamin Petersona58a6262009-03-07 16:34:40 +0000311*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000312
313Core and Builtins
314-----------------
315
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000316- The io module has been reimplemented in C for speed.
317
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000318- Give dict views an informative __repr__.
319
Eric Smith5e5c0db2009-02-20 14:25:03 +0000320- Issue #5247: Improve error message when unknown format codes are
321 used when using str.format() with str, int, and float arguments.
322
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000323- Issue #5249: time.strftime returned malformed string when format string
324 contained non ascii character on windows.
325
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000326- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
327 source has already been decoded into str.
328
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000329- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
330 rotating the object pointer by 4 bits to the right.
331
Mark Dickinson87ec0852009-02-09 17:15:59 +0000332- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
333 it now forces its argument to double before testing for infinity.
334
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000335- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
336 returns a non-number type.
337
Benjamin Peterson87618552009-02-08 15:00:52 +0000338- Issue #5182: Removed memoryview.__str__.
339
Mark Dickinsonc008a172009-02-01 13:59:22 +0000340- Issue #1717: Removed builtin cmp() function, dropped tp_compare
341 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000342 the type definition cmpfunc. The tp_compare slot has been renamed
343 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000344
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000345- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000346 were suppressing all exceptions. These include list() and bytearray().
347
Mark Dickinson1124e712009-01-28 21:25:58 +0000348- Issue #4707: round(x, n) now returns an integer if x is an integer.
349 Previously it returned a float.
350
Antoine Pitroub52ec782009-01-25 16:34:23 +0000351- Issue #4753: By enabling a configure option named '--with-computed-gotos'
352 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
353 evaluation loop is compiled with a new dispatch mechanism which gives
354 speedups of up to 20%, depending on the system, on various benchmarks.
355
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000356- Issue #4874: Most builtin decoders now reject unicode input.
357
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000358- Issue #4842: Don't allow trailing 'L' when constructing an integer
359 from a string.
360
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000361- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
362
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000363- Issue #4838: When a module is deallocated, free the memory backing the
364 optional module state data.
365
Mark Dickinson8055afd2009-01-17 10:04:45 +0000366- Issue #4910: Rename nb_long slot to nb_reserved, and change its
367 type to (void *).
368
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000369- Issue #4935: The overflow checking code in the expandtabs() method common
370 to str, bytes and bytearray could be optimized away by the compiler, letting
371 the interpreter segfault instead of raising an error.
372
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000373- Issue #3720: Fix a crash when an iterator modifies its class and removes its
374 __next__ method.
375
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000376- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
377 function no longer attempt to call the __long__ slot to convert an object
378 to an integer. Only the __int__ and __trunc__ slots are examined.
379
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000380- Issue #4893: Use NT threading on CE.
381
Martin v. Löwisec59d042009-01-12 07:59:10 +0000382- Issue #4915: Port sysmodule to Windows CE.
383
Antoine Pitrouab868312009-01-10 15:40:25 +0000384- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
385 common cases are optimized thanks to a dedicated fast path and a moderate
386 amount of loop unrolling.
387
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000388- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
389 collecting the oldest generation) so that allocating lots of objects without
390 destroying them does not show quadratic performance. Based on a proposal by
391 Martin von Löwis at
392 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
393
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000394- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000395 having been closed (for instance, a read() call could return some
396 previously buffered data). Patch by Dmitry Vasiliev.
397
Antoine Pitrou05608432009-01-09 18:53:14 +0000398- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
399 flag to work properly. Furthermore, when specifying -u, the text stdout
400 and stderr streams have line-by-line buffering enabled (the default being
401 to buffer arbitrary chunks of data).
402
Raymond Hettinger35631532009-01-09 03:58:09 +0000403- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
404 instead of ints (reducing its size from 4 to 8 times thereby reducing
405 Python's overall memory).
406
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000407- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
408 an existing .py counterpart, override the co_filename attributes of all
409 code objects if the original filename is obsolete (which can happen if the
410 file has been renamed, moved, or if it is accessed through different paths).
411 Patch by Ziga Seilnacht and Jean-Paul Calderone.
412
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000413- Issue #4580: Fix slicing of memoryviews when the item size is greater than
414 one byte. Also fixes the meaning of len() so that it returns the number of
415 items, rather than the size in bytes.
416
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000417- Issue #4075: Use OutputDebugStringW in Py_FatalError.
418
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000419- Issue #4747: When the terminal does not use utf-8, executing a script with
420 non-ascii characters in its name could fail with a "SyntaxError: None" error.
421
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000422- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000423 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000424
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000425- Issue #3680: Reference cycles created through a dict, set or deque iterator
426 did not get collected.
427
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000428- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
429 where the tp_hash and tp_dict slots are both NULL.
430
Georg Brandlccc47b62008-12-28 11:44:14 +0000431- Issue #4759: None is now allowed as the first argument of
432 bytearray.translate(). It was always allowed for bytes.translate().
433
Skip Montanaro80072cb2008-12-23 03:51:14 +0000434- Added test case to ensure attempts to read from a file opened for writing
435 fail.
436
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000437- Issue #3106: Speedup some comparisons (str/str and int/int).
438
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000439- Issue #2183: Simplify and optimize bytecode for list, dict and set
440 comprehensions. Original patch for list comprehensions by Neal Norwitz.
441
Antoine Pitrou621601a2008-12-17 23:18:19 +0000442- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
443 print elapsed times, not only when some objects are uncollectable /
444 unreachable. Original patch by Neil Schemenauer.
445
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000446- Issue #3439: Add a bit_length method to int.
447
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000448- Issue #2173: When getting device encoding, check that return value of
449 nl_langinfo is not the empty string. This was causing silent build
450 failures on OS X.
451
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000452- Issue #4597: Fixed several opcodes that weren't always propagating
453 exceptions.
454
455- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000456 context manager returns a value that cannot be converted to a bool.
457
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000458- Issue #4445: Replace "sizeof(PyBytesObject)" with
459 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
460 bytes instances. On a typical machine this saves 3 bytes of memory
461 (on average) per allocation of a bytes instance.
462
Christian Heimesa872de52008-12-05 08:26:55 +0000463- Issue #4533: File read operation was dreadfully slow due to a slowly
464 growing read buffer. Fixed by using the same growth rate algorithm as
465 Python 2.x.
466
Antoine Pitrou5504e892008-12-06 21:27:53 +0000467- Issue #4509: Various issues surrounding resize of bytearray objects to
468 which there are buffer exports (e.g. memoryview instances).
469
Georg Brandlf9734072008-12-07 15:30:06 +0000470- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
471 method on file objects with closefd=False. The file descriptor is still
472 kept open but the file object behaves like a closed file. The ``FileIO``
473 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000474
Antoine Pitroubc420402008-12-07 20:14:49 +0000475- Issue #4569: Interpreter crash when mutating a memoryview with an item size
476 larger than 1.
477
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000478- Issue #4748: Lambda generators no longer return a value.
479
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000480- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
481
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000482Library
483-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000484
R. David Murrayb507d2e2009-04-29 15:34:32 +0000485- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
486
Tarek Ziadé81623822009-04-29 08:07:44 +0000487- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
488 anymore.
489
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000490- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000491 sysconfig.get_config_vars.
492
Tarek Ziadé23336082009-04-25 12:39:56 +0000493- Issue #4951: Fixed failure in test_httpservers.
494
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000495- Issue #5795: Fixed test_distutils failure on Debian ppc.
496
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000497- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
498
Georg Brandl1f9fa312009-04-27 16:42:58 +0000499- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
500 a value in SafeConfigParser.
501
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000502- Issue #5732: added a new command in Distutils: check.
503
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000504- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000505 platforms. Initial patch by Paul Moore.
506
Tarek Ziadéf6370502009-04-05 22:57:21 +0000507- Issue #5095: Added bdist_msi to the list of bdist supported formats.
508 Initial fix by Steven Bethard.
509
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000510- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
511 Initial fix by Wayne Davison.
512
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000513- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000514
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000515- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000516
Brett Cannonf47e84c2009-04-01 16:06:01 +0000517- Issue #1665206 (partially): Move imports in cgitb to the top of the module
518 instead of performing them in functions. Helps prevent import deadlocking in
519 threads.
520
R. David Murraye59482e2009-04-01 03:42:00 +0000521- Issue #2522: locale.format now checks its first argument to ensure it has
522 been passed only one pattern, avoiding mysterious errors where it appeared
523 that it was failing to do localization.
524
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000525- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
526 Brandl.
527
Antoine Pitrou350370c2009-03-14 00:13:13 +0000528- Issue #1222: locale.format() bug when the thousands separator is a space
529 character.
530
Tarek Ziadé516db942009-03-11 12:52:00 +0000531- Issue #5472: Fixed distutils.test_util tear down. Original patch by
532 Tim Golden.
533
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000534- collections.deque() objects now have a read-only attribute called maxlen.
535
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000536- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
537 it is has been populated and properly configured in order to prevent
538 window flashing.
539
Guilherme Polo56f5be52009-03-07 01:54:57 +0000540- Issue #4792: Prevent a segfault in _tkinter by using the
541 guaranteed to be safe interp argument given to the PythonCmd in place of
542 the Tcl interpreter taken from a PythonCmd_ClientData.
543
544- Issue #5193: Guarantee that tkinter.Text.search returns a string.
545
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000546- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
547 Original patch by Akira Kitada.
548
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000549- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
550
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000551- Issue #5385: Fixed mmap crash after resize failure on windows.
552
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000553- Issue #5179: Fixed subprocess handle leak on failure on windows.
554
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000555- PEP 372: Added collections.OrderedDict().
556
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000557- The _asdict() for method for namedtuples now returns an OrderedDict().
558
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000559- configparser now defaults to using an ordered dictionary.
560
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000561- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
562 import guess_extension`` was used.
563
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000564- Issue #1733986: Fixed mmap crash in accessing elements of second map object
565 with same tagname but larger size than first map. (Windows)
566
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000567- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
568 overrun.
569
Tarek Ziadéf0721222009-02-28 10:16:43 +0000570- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
571 bdist_rpm command.
572
573- Issue #5378: added --quiet option to Distutils bdist_rpm command.
574
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000575- Issue #5052: make Distutils compatible with 2.3 again.
576
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000577- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
578 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000579
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000580- Issue #5287: Add exception handling around findCaller() call to help out
581 IronPython.
582
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000583- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
584 The file was resized to wrong size.
585
586- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
587
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000588- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000589 from the package_data and the data_files metadata.
590
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000591- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000592 support.TempdirManager, to avoid writing in the tests directory.
593
Tarek Ziadé68c50952009-02-13 23:04:17 +0000594- Issue #4524: distutils build_script command failed with --with-suffix=3.
595 Initial patch by Amaury Forgeot d'Arc.
596
Tarek Ziadé811d6242009-02-13 22:26:15 +0000597- Issue #2461: added tests for distutils.util
598
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000599- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
600 which inherited from numbers.py which did not have __slots__ defined. The
601 numbers hierarchy now has its own __slots__ declarations.
602
Antoine Pitroub353c122009-02-11 00:39:14 +0000603- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
604 encoding.
605
Thomas Heller465c8022009-02-10 18:59:04 +0000606- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
607 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
608
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000609- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
610 under NT and OS2. Patch by Philip Jenvey.
611
Brett Cannonbefb14f2009-02-10 02:10:16 +0000612- Issue #5128: Make compileall properly inspect bytecode to determine if needs
613 to be recreated. This avoids a timing hole thanks to the old reliance on the
614 ctime of the files involved.
615
Guilherme Polob681df42009-02-09 22:33:59 +0000616- Issue #5122: Synchronize tk load failure check to prevent a potential
617 deadlock.
618
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000619- Issue #1818: collections.namedtuple() now supports a keyword argument
620 'rename' which lets invalid fieldnames be automatically converted to
621 positional names in the form, _1, _2, ...
622
Guilherme Poloae098992009-02-09 16:44:24 +0000623- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
624
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000625- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
626 public documented method ``ZipImporter.get_filename()``.
627
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000628- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
629 the execution of packages by looking for and executing a ``__main__``
630 submodule when a package name is supplied. Initial patch by Andi
631 Vajda.
632
Guilherme Polo491aee22009-02-06 23:16:11 +0000633- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
634 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
635 Tkapp_Call when calling from a thread different than the one that created
636 the Tcl interpreter. Patch by Robert Hancock.
637
Eric Smith0e5b5622009-02-06 01:32:42 +0000638- Issue #4285: Change sys.version_info to be a named tuple. Patch by
639 Ross Light.
640
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000641- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000642 environment/Makefile. Patch by Douglas Greiman.
643
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000644- Issue #1276768: The verbose option was not used in the code of
645 distutils.file_util and distutils.dir_util.
646
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000647- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000648 --enabled-shared activated. Initial patch by Dave Peterson.
649
Guilherme Polo7f423952009-02-02 21:17:09 +0000650- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
651
Raymond Hettinger85602262009-02-03 04:19:10 +0000652- The shelve module now defaults to pickle protocol 3.
653
Brett Cannone61426e2009-01-30 01:31:34 +0000654- Fix a bug in the trace module where a bytes object from co_lnotab had its
655 items being passed through ord().
656
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000657- Issue #2047: shutil.move() could believe that its destination path was
658 inside its source path if it began with the same letters (e.g. "src" vs.
659 "src.new").
660
Guilherme Polo5f238482009-01-28 14:41:10 +0000661- Added the ttk module. See issue #2983: Ttk support for Tkinter.
662
Raymond Hettinger89e12962009-01-26 02:09:03 +0000663- Removed isSequenceType(), isMappingType, and isNumberType() from the
664 operator module; use the abstract base classes instead. Also removed
665 the repeat() function; use mul() instead.
666
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000667- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000668 collections.namedtuple() relied on __name__ being defined.
669
670- Backport importlib from Python 3.1. Only the import_module() function has
671 been backported to help facilitate transitions from 2.7 to 3.1.
672
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000673- Issue #1885: distutils. When running sdist with --formats=tar,gztar
674 the tar file was overriden by the gztar one.
675
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000676- Issue #4863: distutils.mwerkscompiler has been removed.
677
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000678- Added a new itertools functions: combinations_with_replacement()
679 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000680
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000681- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000682 allowed non-integer arguments.
683
Jesse Noller41faa542009-01-25 03:45:53 +0000684- Fix and properly document the multiprocessing module's logging
685 support, expose the internal levels and provide proper usage
686 examples.
687
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000688- Issue #1672332: fix unpickling of subnormal floats, which was
689 producing a ValueError on some platforms.
690
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000691- Issue #3881: Help Tcl to load even when started through the
692 unreadable local symlink to "Program Files" on Vista.
693
Martin v. Löwis59e47792009-01-24 14:10:07 +0000694- Issue #4710: Extract directories properly in the zipfile module;
695 allow adding directories to a zipfile.
696
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000697- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000698 --without-threads argument. When this occurs, _multiprocessing will
699 be disabled, and not compiled.
700
Antoine Pitrou08838b62009-01-21 00:55:13 +0000701- Issue #5008: When a file is opened in append mode with the new IO library,
702 do an explicit seek to the end of file (so that e.g. tell() returns the
703 file size rather than 0). This is consistent with the behaviour of the
704 traditional 2.x file object.
705
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000706- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
707 parameter was set.
708
Mark Dickinson8dd05142009-01-20 20:43:58 +0000709- Issue #4842: Always append a trailing 'L' when pickling longs using
710 pickle protocol 0. When reading, the 'L' is optional.
711
Brett Cannonafccd632009-01-20 02:21:27 +0000712- Add the importlib package.
713
Jesse Noller9a0fc972009-01-18 21:12:58 +0000714- Issue #4301: Patch the logging module to add processName support, remove
715 _check_logger_class from multiprocessing.
716
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000717- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000718 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000719
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000720- Issue #4959: inspect.formatargspec now works for keyword only arguments
721 without defaults.
722
Jesse Noller6214edd2009-01-19 16:23:53 +0000723- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
724 for *nix machines for negative handles and large int handles. Without this check
725 it is possible to segfault the interpreter.
726
Jesse Nollerb0516a62009-01-18 03:11:38 +0000727- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
728 in sharedctypes.py.
729
730- Issue #1225107: inspect.isclass() returned True for instances with a custom
731 __getattr__.
732
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000733- Issue #3826 and #4791: The socket module now closes the underlying socket
734 appropriately when it is being used via socket.makefile() objects
735 rather than delaying the close by waiting for garbage collection to do it.
736
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000737- Issue #1696199: Add collections.Counter() for rapid and convenient
738 counting.
739
Antoine Pitrou308705e2009-01-10 16:22:51 +0000740- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
741
Thomas Heller5e4e4272009-01-08 09:34:20 +0000742- Issue #4867: Fixed a crash in ctypes when passing a string to a
743 function without defining argtypes.
744
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000745- Issue #4272: Add an optional argument to the GzipFile constructor to override
746 the timestamp in the gzip stream. The default value remains the current time.
747 The information can be used by e.g. gunzip when decompressing. Patch by
748 Jacques Frechet.
749
Mark Dickinson315a20a2009-01-04 21:34:18 +0000750- Restore Python 2.3 compatibility for decimal.py.
751
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000752- Issue #3638: Remove functions from _tkinter module level that depend on
753 TkappObject to work with multiple threads.
754
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000755- Issue #4718: Adapt the wsgiref package so that it actually works with
756 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000757 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
758
Raymond Hettinger771ed762009-01-03 19:20:32 +0000759- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
760 to the decimal module.
761
Georg Brandl3a9b0622009-01-03 22:07:57 +0000762- Fractions.from_float() no longer loses precision for integers too big to
763 cast as floats.
764
Mark Dickinsonf9236412009-01-02 23:23:21 +0000765- Issue #4812: add missing underscore prefix to some internal-use-only
766 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
767
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000768- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000769 did unnecessary work in the common case where no key function was specified.
770
Georg Brandlb1441c72009-01-03 22:33:39 +0000771- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
772 the function is not a generator.
773
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000774- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
775 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000776
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000777- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000778 function. Original patch by Thomas Heller.
779
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000780- Issue #3767: Convert Tk object to string in tkColorChooser.
781
Martin v. Löwise354d782008-12-29 16:03:04 +0000782- Issue #3248: Allow placing ScrolledText in a PanedWindow.
783
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000784- Issue #4444: Allow assertRaises() to be used as a context handler, so that
785 the code under test can be written inline if more practical.
786
Georg Brandldb7b6b92009-01-01 15:53:14 +0000787- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
788 works as expected in the interactive environment.
789
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000790- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
791 Gabriel Genellina.
792
Antoine Pitrou180a3362008-12-14 16:36:46 +0000793- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
794 boundary.
795
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000796- Issue #4223: inspect.getsource() will now correctly display source code
797 for packages loaded via zipimport (or any other conformant PEP 302
798 loader). Original patch by Alexander Belopolsky.
799
800- Issue #4201: pdb can now access and display source code loaded via
801 zipimport (or any other conformant PEP 302 loader). Original patch by
802 Alexander Belopolsky.
803
804- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
805 302 conformant loader) will now work correctly in most cases (they
806 are still subject to the constraints that exist for all code running
807 from inside a module loaded via a PEP 302 loader and attempting to
808 perform IO operations based on __file__). Original patch by
809 Alexander Belopolsky.
810
811- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
812 allows backporting to maintenance branches. Original patch by
813 Alexander Belopolsky.
814
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000815- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
816 a non-ASCII letter.
817
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000818- Issue #4616: TarFile.utime(): Restore directory times on Windows.
819
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000820- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
821 codec cannot be found. This is for compatibility with the builtin behavior.
822
Facundo Batista708d5812008-12-11 04:20:07 +0000823- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
824 give correct results in the case where one argument is a quiet NaN
825 and the other is a finite number that requires rounding.
826
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000827- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
828 libs.
829
Georg Brandlf9734072008-12-07 15:30:06 +0000830- Added the subprocess.check_call_output() convenience function to get output
831 from a subprocess on success or raise an exception on error.
832
833- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
834 support unusual filenames (such as those containing semi-colons) in
835 Content-Disposition headers.
836
837- Issue #4384: Added logging integration with warnings module using
838 captureWarnings(). This change includes a NullHandler which does nothing;
839 it will be of use to library developers who want to avoid the "No handlers
840 could be found for logger XXX" message which can appear if the library user
841 doesn't configure logging.
842
843- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
844 exception.
845
Georg Brandleee31162008-12-07 15:15:22 +0000846- Issue #4529: fix the parser module's validation of try-except-finally
847 statements.
848
849- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
850 not a malformed option.
851
852- Added the subprocess.check_output() convenience function to get output
853 from a subprocess on success or raise an exception on error.
854
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000855- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
856 the corresponding tests now pass.
857
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000858- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
859 it was calling the wrong open() function.
860
Fred Drake9a0a65b2008-12-04 19:24:50 +0000861- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
862 support unusual filenames (such as those containing semi-colons) in
863 Content-Disposition headers.
864
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000865- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
866 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
867
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000868- Issue #5104: The socket module now raises OverflowError when 16-bit port and
869 protocol numbers are supplied outside the allowed 0-65536 range on bind()
870 and getservbyport().
871
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000872Tools/Demos
873-----------
874
Antoine Pitrou8a681222009-02-07 17:13:31 +0000875- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
876 and make it 2.6-compatible.
877
Guilherme Poloa7d27972009-01-28 16:06:51 +0000878- Ttk demos added in Demo/tkinter/ttk/
879
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000880- Issue #4677: add two list comprehension tests to pybench.
881
Georg Brandlb1441c72009-01-03 22:33:39 +0000882
883Build
884-----
885
Matthias Klose55708cc2009-04-30 08:06:49 +0000886- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
887 the order that backends for the dbm extension are checked.
888
Matthias Klose906785c2009-02-22 23:18:38 +0000889- Link the shared python library with $(MODLIBS).
890
Martin v. Löwis11f72102009-02-10 13:13:30 +0000891- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
892
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000893- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
894
Martin v. Löwise97637d2009-01-11 09:45:11 +0000895- Issue #4895: Use _strdup on Windows CE.
896
Georg Brandlb1441c72009-01-03 22:33:39 +0000897- Issue #4472: "configure --enable-shared" now works on OSX
898
899- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
900
901- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
902
903- Issue #4289: Remove Cancel button from AdvancedDlg.
904
905- Issue #1656675: Register a drop handler for .py* files on Windows.
906
907- Issue #4120: Exclude manifest from extension modules in VS2008.
908
909- Issue #4091: Install pythonxy.dll in system32 again.
910
911- Issue #4018: Disable "for me" installations on Vista.
912
913- Issue #3758: Add ``patchcheck`` build target to .PHONY.
914
915- Issue #4204: Fixed module build errors on FreeBSD 4.
916
917
918C-API
919-----
920
Mark Dickinson21776072009-02-10 16:13:25 +0000921- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
922 for negative arguments. Previously, it raised TypeError.
923
Georg Brandlb1441c72009-01-03 22:33:39 +0000924- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
925
926- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
927 the GIL is released, or owned by another thread.
928
929- Issue #4122: On Windows, fix a compilation error when using the
930 Py_UNICODE_ISSPACE macro in an extension module.
931
932
Mark Dickinsone675f082008-12-11 21:56:00 +0000933Extension Modules
934-----------------
935
Gregory P. Smith365a1862009-02-12 07:35:29 +0000936- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
937 supporting objects as input no matter how it was compiled (built in
938 implementations or external openssl library).
939
Mark Dickinson29500f62009-01-15 15:36:10 +0000940- Issue #4397: Fix occasional test_socket failure on OS X.
941
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000942- Issue #4279: Fix build of parsermodule under Cygwin.
943
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000944- Issue #4751: hashlib now releases the GIL when hashing large buffers
945 (with a hardwired threshold of 2048 bytes), allowing better parallelization
946 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
947
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000948- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
949
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000950- Issue #4738: Each zlib object now has a separate lock, allowing to compress
951 or decompress several streams at once on multi-CPU systems. Also, the GIL
952 is now released when computing the CRC of a large buffer. Patch by ebfe.
953
Georg Brandlb1441c72009-01-03 22:33:39 +0000954- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
955
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000956- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
957
Mark Dickinsone675f082008-12-11 21:56:00 +0000958- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
959 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000960
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000961- Issue #4583: array.array would not always prohibit resizing when a buffer
962 has been exported, resulting in an interpreter crash when accessing the
963 buffer.
964
Martin v. Löwis841edad2008-11-30 10:36:49 +0000965
Jack Diederiche0cbd692009-04-01 04:27:09 +0000966- Issue #5228: Make functools.partial objects can now be pickled.
967
Guilherme Polo9de29af2009-01-28 20:40:48 +0000968Tests
969-----
970
R. David Murraya21e4ca2009-03-31 23:16:50 +0000971- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000972 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000973 from test support, which does the conversion.
974
Guilherme Polo9de29af2009-01-28 20:40:48 +0000975- Issue #5083: New 'gui' resource for regrtest.
976
977
Brett Cannon7317c1e2008-11-25 19:19:17 +0000978Docs
979----
980
Georg Brandl52b92cc2008-05-25 09:43:03 +0000981
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000982**(For information about older versions, consult the HISTORY file.)**