blob: befef2199962345a5e2db9604527ac06f958fb69 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Martin v. Löwisdb12d452009-05-02 18:52:14 +000015- Issue #3672: Reject surrogates in utf-8 codec; add surrogates error handler.
16
Benjamin Petersond2e0c792009-05-01 20:40:59 +000017- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
18 received a new method, detach(). detach() disconnects the underlying stream
19 from the buffer or text IO and returns it.
20
Mark Dickinson33841c32009-05-01 15:37:04 +000021- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
22 floats with absolute value over 1e50. Also remove length
23 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
24 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +000025
Eric Smith58a42242009-04-30 01:00:33 +000026- Issue #1588: Add complex.__format__. For example,
27 format(complex(1, 2./3), '.5') now produces a sensible result.
28
Mark Dickinsond3ca5572009-04-29 18:47:07 +000029- Issue #5864: Fix empty format code formatting for floats so that it
30 never gives more than the requested number of significant digits.
31
Eric Smith6dc46f52009-04-27 20:39:49 +000032- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
33 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
34
Eric Smithcc32a112009-04-26 21:35:14 +000035- Issue #5835: Deprecate PyOS_ascii_formatd.
36
Martin v. Löwis71efeb72009-04-26 01:02:07 +000037- Issue #4971: Fix titlecase for characters that are their own
38 titlecase, but not their own uppercase.
39
Benjamin Peterson193152c2009-04-25 01:08:45 +000040- Issue #5283: Setting __class__ in __del__ caused a segfault.
41
Mark Dickinsonad476da2009-04-23 19:14:16 +000042- Issue #5816: complex(repr(z)) now recovers z exactly, even when
43 z involves nans, infs or negative zeros.
44
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000045- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000046
Mark Dickinsone6a076d2009-04-18 11:48:33 +000047- Issue #1869 (and many duplicates): make round(x, n) correctly
48 rounded for a float x, by using the decimal <-> binary conversions
49 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
50 consistently agrees with format(x, '.2f').
51
Benjamin Petersonae937c02009-04-18 20:54:08 +000052- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
53 some builtin types.
54
Eric Smith0923d1d2009-04-16 20:16:10 +000055- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
56
Eric Smith35e84722009-04-16 20:21:28 +000057- Issue #5515: str.format() type 'n' combined with commas and leading
58 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000059
60- Implement PEP 378, Format Specifier for Thousands Separator, for
61 floats.
62
Mark Dickinson3370cce2009-04-17 22:40:53 +000063- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000064 1e11, not 1e12. This avoids printing 13 significant digits in
65 situations where only 12 of them are correct. Example problem
66 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
67 long time.)
68
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000069- Issue #1580: On most platforms, use a 'short' float repr: for a
70 finite float x, repr(x) now outputs a string based on the shortest
71 sequence of decimal digits that rounds to x. Previous behaviour was
72 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000073 Another minor difference is that the new repr switches to
74 exponential notation at 1e16 instead of the previous 1e17; this
75 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000076
77 There's a new sys attribute sys.float_repr_style, which takes
78 the value 'short' to indicate that we're using short float repr,
79 and 'legacy' if the short float repr isn't available for one
80 reason or another.
81
82 The float repr change involves incorporating David Gay's 'perfect
83 rounding' code into the Python core (it's in Python/dtoa.c). As a
84 secondary consequence, all string-to-float and float-to-string
85 conversions (including all float formatting operations) will be
86 correctly rounded on these platforms.
87
88 See issue 1580 discussions for details of platforms for which
89 this change does not apply.
90
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000091- Issue #5759: float() didn't call __float__ on str subclasses.
92
Georg Brandlabc38772009-04-12 15:51:51 +000093- The string.maketrans() function is deprecated; there is a new static method
94 maketrans() on the bytes and bytearray classes. This removes confusion about
95 the types string.maketrans() is supposed to work with, and mirrors the
96 methods available on the str class.
97
R. David Murraydc6da8a2009-04-09 22:16:43 +000098- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
99 its clarity and its speed.
100
Matthias Klose091c7b12009-04-07 13:24:27 +0000101- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
102 to avoid compiler warnings.
103
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000104Installation
105------------
106
107- Issue #5756: Install idle and pydoc with a 3 suffix.
108
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000109Library
110-------
111
Hirokazu Yamamotobbb9be72009-05-04 05:56:46 +0000112- Issue #5913: os.listdir() should fail for empty path on windows.
113
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000114- Issue #5084: unpickling now interns the attribute names of pickled objects,
115 saving memory and avoiding growth in size of subsequent pickles. Proposal
116 and original patch by Jake McGuire.
117
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000118- The json module now works exclusively with str and not bytes.
119
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000120- Issue #3959: The ipaddr module has been added to the standard library.
121 Contributed by Google.
122
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000123- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
124 error when a named pipe is encountered, rather than blocking infinitely.
125
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000126- Issue #5857: tokenize.tokenize() now returns named tuples.
127
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000128- Issue #4305: ctypes should now build again on mipsel-linux-gnu
129
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000130- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
131 string is already in normalized form, by performing a quick check beforehand.
132 Original patch by Rauli Ruohonen.
133
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000134- Issue #5853: calling a function of the mimetypes module from several threads
135 at once could hit the recursion limit if the mimetypes database hadn't been
136 initialized before.
137
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000138- Issue #5854: Updated __all__ to include some missing names and remove some
139 names which should not be exported.
140
Thomas Heller34596a92009-04-24 20:50:00 +0000141- Issue #3102: All global symbols that the _ctypes extension defines
142 are now prefixed with 'Py' or '_ctypes'.
143
144- Issue #5041: ctypes does now allow pickling wide character.
145
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000146- Issue #5812: For the two-argument form of the Fraction constructor,
147 Fraction(m, n), m and n are permitted to be arbitrary Rational
148 instances.
149
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000150- Issue #5812: Fraction('1e6') is valid: more generally, any string
151 that's valid for float() is now valid for Fraction(), with the
152 exception of strings representing NaNs and infinities.
153
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000154- Issue #5734: BufferedRWPair was poorly tested and had several glaring
155 bugs. Patch by Brian Quinlan.
156
R. David Murray9e94ddf2009-04-13 17:06:33 +0000157- Issue #1161031: fix readwrite select flag handling: POLLPRI now
158 results in a handle_expt_event call, not handle_read_event, and POLLERR
159 and POLLNVAL now call handle_close, not handle_expt_event. Also,
160 dispatcher now has an 'ignore_log_types' attribute for suppressing
161 log messages, which is set to 'warning' by default.
162
Matthias Klosea3d29e82009-04-07 13:13:10 +0000163- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
164 new arguments introduced in 2.5.
165
Walter Dörwald1b08b302009-04-25 14:13:56 +0000166- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
167 makeunicodedata.py and regenerated the Unicode database (This fixes
168 u'\u1d79'.lower() == '\x00').
169
Matthias Klose535336f2009-04-07 13:49:45 +0000170Extension Modules
171-----------------
172
Mark Dickinsonea835e72009-04-19 20:40:33 +0000173- Issue #5463: In struct module, remove deprecated float coercion
174 for integer type codes: struct.pack('L', 0.3) should now raise
175 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
176 The version number has been bumped to 0.3.
177
Matthias Klose535336f2009-04-07 13:49:45 +0000178- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
179 using Berkley-DB.
180
Nick Coghlan47384702009-04-22 16:13:36 +0000181Tests
182-----
183
184- Issue #5354: New test support function import_fresh_module() makes
185 it easy to import both normal and optimised versions of modules.
186 test_heapq and test_warnings have been adjusted to use it, tests for
187 other modules with both C and Python implementations in the stdlib
188 can be adjusted to use it over time.
189
Walter Dörwald4ba80132009-04-25 12:48:43 +0000190- Issue #5837: Certain sequences of calls to set() and unset() for
191 support.EnvironmentVarGuard objects restored the environment variables
192 incorrectly on __exit__.
193
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000194
Benjamin Petersond1735892009-03-07 18:46:21 +0000195What's New in Python 3.1 alpha 2?
196=================================
197
Benjamin Peterson88f14352009-04-04 21:06:52 +0000198*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000199
200Core and Builtins
201-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000202
Eric Smith1e1d7d22009-04-03 22:25:33 +0000203- Implement PEP 378, Format Specifier for Thousands Separator, for
204 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000205
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000206- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
207
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000208- Issue #5499: The 'c' code for argument parsing functions now only accepts a
209 byte, and the 'C' code only accepts a unicode character.
210
Georg Brandl406b3d82009-04-11 21:24:37 +0000211- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
212 when hitting the recursion limit under certain circumstances.
213
Brett Cannon0759dd62009-04-01 18:13:07 +0000214- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
215
Georg Brandlab6f2f62009-03-31 04:16:10 +0000216- Fix a segfault when running test_exceptions with coverage, caused by
217 insufficient checks in accessors of Exception.__context__.
218
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000219- Issue #5604: non-ASCII characters in module name passed to
220 imp.find_module() were converted to UTF-8 while the path is
221 converted to the default filesystem encoding, causing nonsense.
222
Benjamin Peterson09832742009-03-26 17:15:46 +0000223- Issue #5126: str.isprintable() returned False for space characters.
224
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000225- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
226 the end sys.path, for compatibility with the system install of Python.
227
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000228- Issue #4688: Add a heuristic so that tuples and dicts containing only
229 untrackable objects are not tracked by the garbage collector. This can
230 reduce the size of collections and therefore the garbage collection overhead
231 on long-running programs, depending on their particular use of datatypes.
232
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000233- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
234 improve its performance. Long divisions and remainder operations
235 are now between 50% and 150% faster.
236
Mark Dickinsonbd792642009-03-18 20:06:12 +0000237- Issue #4258: Make it possible to use base 2**30 instead of base
238 2**15 for the internal representation of integers, for performance
239 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
240 --enable-big-digits option to configure, which overrides the
241 default. Add sys.int_info structseq to provide information about
242 the internal format.
243
Mark Dickinson081dfee2009-03-18 14:47:41 +0000244- Issue #4474: PyUnicode_FromWideChar now converts characters outside
245 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
246 and sizeof(Py_UNICODE) == 2.
247
Eric Smith8ec90442009-03-14 12:29:34 +0000248- Issue #5237: Allow auto-numbered fields in str.format(). For
249 example: '{} {}'.format(1, 2) == '1 2'.
250
Antoine Pitrou652e7072009-03-13 19:25:20 +0000251- Issue #5392: when a very low recursion limit was set, the interpreter would
252 abort with a fatal error after the recursion limit was hit twice.
253
Matthias Klose042f1332009-04-04 14:32:42 +0000254- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
255 short file names.
256
Benjamin Petersond1735892009-03-07 18:46:21 +0000257Library
258-------
259
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000260- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000261 mailbox.MH.get_message().
262
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000263- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
264 error substitutions from non-strict codec error callbacks in
265 incrementalencoder and StreamWriter.
266
Georg Brandl33c28812009-04-01 23:07:29 +0000267- Issue #5656: Fix the coverage reporting when running the test suite with
268 the -T argument.
269
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000270- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
271
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000272- Issue #5624: Fix the _winreg module name still used in several modules.
273
Benjamin Petersona1b49012009-03-31 23:11:32 +0000274- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
275
Jesse Nollera9314042009-03-31 22:36:44 +0000276- Issue #5619: Multiprocessing children disobey the debug flag and causes
277 popups on windows buildbots. Patch applied to work around this issue.
278
Jesse Noller32d68c22009-03-31 18:48:42 +0000279- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
280
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000281- Issue #5387: Fixed mmap.move crash by integer overflow.
282
Jesse Nollerf8d00852009-03-31 03:25:07 +0000283- Issue #5261: Patch multiprocessing's semaphore.c to support context
284 manager use: "with multiprocessing.Lock()" works now.
285
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000286- Issue #5236: Change time.strptime() to only take strings. Didn't work with
287 bytes already but the failure was non-obvious.
288
Jesse Noller7af4ef82009-03-30 16:47:15 +0000289- Issue #5177: Multiprocessing's SocketListener class now uses
290 socket.SO_REUSEADDR on all connections so that the user no longer needs
291 to wait 120 seconds for the socket to expire.
292
Benjamin Peterson48e24782009-03-29 13:02:52 +0000293- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
294
Antoine Pitrou66994e12009-03-29 00:45:26 +0000295- Issue #1174606: Calling read() without arguments of an unbounded file
296 (typically /dev/zero under Unix) could crash the interpreter.
297
Benjamin Peterson59406a92009-03-26 17:10:29 +0000298- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
299 io.BufferedRandom have been deprecated for removal in Python 3.2.
300
Lars Gustäbel42e00912009-03-22 20:34:29 +0000301- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
302 forever on incomplete input. That caused tarfile.open() to hang when used
303 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
304 partial bzip2 compressed data.
305
Mark Dickinson79f52032009-03-17 23:12:51 +0000306- Issue #2110: Add support for thousands separator and 'n' type
307 specifier to Decimal.__format__
308
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000309- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
310 '>' alignment characters.
311
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000312- The error detection code in FileIO.close() could fail to reflect the `errno`
313 value, and report it as -1 instead.
314
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000315- Issue #5016: FileIO.seekable() could return False if the file position
316 was negative when truncated to a C int. Patch by Victor Stinner.
317
Mark Dickinsonae681df2009-03-21 10:26:31 +0000318Extension Modules
319-----------------
320
Benjamin Petersone099b372009-04-04 17:09:35 +0000321- Issue #5391: mmap now deals exclusively with bytes.
322
Mark Dickinsonae681df2009-03-21 10:26:31 +0000323- Issue #5463: In struct module, remove deprecated overflow wrapping
324 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000325 struct.error instead of returning b'\xff\xff\xff\xff'. The
326 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
327 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000328
Benjamin Petersond1735892009-03-07 18:46:21 +0000329
Benjamin Petersona58a6262009-03-07 16:34:40 +0000330What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000331================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000332
Benjamin Petersona58a6262009-03-07 16:34:40 +0000333*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000334
335Core and Builtins
336-----------------
337
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000338- The io module has been reimplemented in C for speed.
339
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000340- Give dict views an informative __repr__.
341
Eric Smith5e5c0db2009-02-20 14:25:03 +0000342- Issue #5247: Improve error message when unknown format codes are
343 used when using str.format() with str, int, and float arguments.
344
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000345- Issue #5249: time.strftime returned malformed string when format string
346 contained non ascii character on windows.
347
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000348- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
349 source has already been decoded into str.
350
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000351- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
352 rotating the object pointer by 4 bits to the right.
353
Mark Dickinson87ec0852009-02-09 17:15:59 +0000354- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
355 it now forces its argument to double before testing for infinity.
356
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000357- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
358 returns a non-number type.
359
Benjamin Peterson87618552009-02-08 15:00:52 +0000360- Issue #5182: Removed memoryview.__str__.
361
Mark Dickinsonc008a172009-02-01 13:59:22 +0000362- Issue #1717: Removed builtin cmp() function, dropped tp_compare
363 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000364 the type definition cmpfunc. The tp_compare slot has been renamed
365 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000366
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000367- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000368 were suppressing all exceptions. These include list() and bytearray().
369
Mark Dickinson1124e712009-01-28 21:25:58 +0000370- Issue #4707: round(x, n) now returns an integer if x is an integer.
371 Previously it returned a float.
372
Antoine Pitroub52ec782009-01-25 16:34:23 +0000373- Issue #4753: By enabling a configure option named '--with-computed-gotos'
374 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
375 evaluation loop is compiled with a new dispatch mechanism which gives
376 speedups of up to 20%, depending on the system, on various benchmarks.
377
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000378- Issue #4874: Most builtin decoders now reject unicode input.
379
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000380- Issue #4842: Don't allow trailing 'L' when constructing an integer
381 from a string.
382
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000383- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
384
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000385- Issue #4838: When a module is deallocated, free the memory backing the
386 optional module state data.
387
Mark Dickinson8055afd2009-01-17 10:04:45 +0000388- Issue #4910: Rename nb_long slot to nb_reserved, and change its
389 type to (void *).
390
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000391- Issue #4935: The overflow checking code in the expandtabs() method common
392 to str, bytes and bytearray could be optimized away by the compiler, letting
393 the interpreter segfault instead of raising an error.
394
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000395- Issue #3720: Fix a crash when an iterator modifies its class and removes its
396 __next__ method.
397
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000398- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
399 function no longer attempt to call the __long__ slot to convert an object
400 to an integer. Only the __int__ and __trunc__ slots are examined.
401
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000402- Issue #4893: Use NT threading on CE.
403
Martin v. Löwisec59d042009-01-12 07:59:10 +0000404- Issue #4915: Port sysmodule to Windows CE.
405
Antoine Pitrouab868312009-01-10 15:40:25 +0000406- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
407 common cases are optimized thanks to a dedicated fast path and a moderate
408 amount of loop unrolling.
409
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000410- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
411 collecting the oldest generation) so that allocating lots of objects without
412 destroying them does not show quadratic performance. Based on a proposal by
413 Martin von Löwis at
414 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
415
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000416- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000417 having been closed (for instance, a read() call could return some
418 previously buffered data). Patch by Dmitry Vasiliev.
419
Antoine Pitrou05608432009-01-09 18:53:14 +0000420- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
421 flag to work properly. Furthermore, when specifying -u, the text stdout
422 and stderr streams have line-by-line buffering enabled (the default being
423 to buffer arbitrary chunks of data).
424
Raymond Hettinger35631532009-01-09 03:58:09 +0000425- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
426 instead of ints (reducing its size from 4 to 8 times thereby reducing
427 Python's overall memory).
428
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000429- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
430 an existing .py counterpart, override the co_filename attributes of all
431 code objects if the original filename is obsolete (which can happen if the
432 file has been renamed, moved, or if it is accessed through different paths).
433 Patch by Ziga Seilnacht and Jean-Paul Calderone.
434
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000435- Issue #4580: Fix slicing of memoryviews when the item size is greater than
436 one byte. Also fixes the meaning of len() so that it returns the number of
437 items, rather than the size in bytes.
438
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000439- Issue #4075: Use OutputDebugStringW in Py_FatalError.
440
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000441- Issue #4747: When the terminal does not use utf-8, executing a script with
442 non-ascii characters in its name could fail with a "SyntaxError: None" error.
443
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000444- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000445 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000446
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000447- Issue #3680: Reference cycles created through a dict, set or deque iterator
448 did not get collected.
449
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000450- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
451 where the tp_hash and tp_dict slots are both NULL.
452
Georg Brandlccc47b62008-12-28 11:44:14 +0000453- Issue #4759: None is now allowed as the first argument of
454 bytearray.translate(). It was always allowed for bytes.translate().
455
Skip Montanaro80072cb2008-12-23 03:51:14 +0000456- Added test case to ensure attempts to read from a file opened for writing
457 fail.
458
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000459- Issue #3106: Speedup some comparisons (str/str and int/int).
460
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000461- Issue #2183: Simplify and optimize bytecode for list, dict and set
462 comprehensions. Original patch for list comprehensions by Neal Norwitz.
463
Antoine Pitrou621601a2008-12-17 23:18:19 +0000464- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
465 print elapsed times, not only when some objects are uncollectable /
466 unreachable. Original patch by Neil Schemenauer.
467
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000468- Issue #3439: Add a bit_length method to int.
469
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000470- Issue #2173: When getting device encoding, check that return value of
471 nl_langinfo is not the empty string. This was causing silent build
472 failures on OS X.
473
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000474- Issue #4597: Fixed several opcodes that weren't always propagating
475 exceptions.
476
477- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000478 context manager returns a value that cannot be converted to a bool.
479
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000480- Issue #4445: Replace "sizeof(PyBytesObject)" with
481 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
482 bytes instances. On a typical machine this saves 3 bytes of memory
483 (on average) per allocation of a bytes instance.
484
Christian Heimesa872de52008-12-05 08:26:55 +0000485- Issue #4533: File read operation was dreadfully slow due to a slowly
486 growing read buffer. Fixed by using the same growth rate algorithm as
487 Python 2.x.
488
Antoine Pitrou5504e892008-12-06 21:27:53 +0000489- Issue #4509: Various issues surrounding resize of bytearray objects to
490 which there are buffer exports (e.g. memoryview instances).
491
Georg Brandlf9734072008-12-07 15:30:06 +0000492- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
493 method on file objects with closefd=False. The file descriptor is still
494 kept open but the file object behaves like a closed file. The ``FileIO``
495 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000496
Antoine Pitroubc420402008-12-07 20:14:49 +0000497- Issue #4569: Interpreter crash when mutating a memoryview with an item size
498 larger than 1.
499
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000500- Issue #4748: Lambda generators no longer return a value.
501
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000502- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
503
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000504- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
505 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
506 step. This avoids problems with counting UTF-8 bytes that ignores the effect
507 of using the replace error handler in PyUnicode_DecodeUTF8().
508
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000509Library
510-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000511
R. David Murrayb507d2e2009-04-29 15:34:32 +0000512- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
513
Tarek Ziadé81623822009-04-29 08:07:44 +0000514- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
515 anymore.
516
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000517- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000518 sysconfig.get_config_vars.
519
Tarek Ziadé23336082009-04-25 12:39:56 +0000520- Issue #4951: Fixed failure in test_httpservers.
521
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000522- Issue #5795: Fixed test_distutils failure on Debian ppc.
523
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000524- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
525
Georg Brandl1f9fa312009-04-27 16:42:58 +0000526- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
527 a value in SafeConfigParser.
528
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000529- Issue #5732: added a new command in Distutils: check.
530
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000531- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000532 platforms. Initial patch by Paul Moore.
533
Tarek Ziadéf6370502009-04-05 22:57:21 +0000534- Issue #5095: Added bdist_msi to the list of bdist supported formats.
535 Initial fix by Steven Bethard.
536
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000537- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
538 Initial fix by Wayne Davison.
539
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000540- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000541
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000542- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000543
Brett Cannonf47e84c2009-04-01 16:06:01 +0000544- Issue #1665206 (partially): Move imports in cgitb to the top of the module
545 instead of performing them in functions. Helps prevent import deadlocking in
546 threads.
547
R. David Murraye59482e2009-04-01 03:42:00 +0000548- Issue #2522: locale.format now checks its first argument to ensure it has
549 been passed only one pattern, avoiding mysterious errors where it appeared
550 that it was failing to do localization.
551
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000552- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
553 Brandl.
554
Antoine Pitrou350370c2009-03-14 00:13:13 +0000555- Issue #1222: locale.format() bug when the thousands separator is a space
556 character.
557
Tarek Ziadé516db942009-03-11 12:52:00 +0000558- Issue #5472: Fixed distutils.test_util tear down. Original patch by
559 Tim Golden.
560
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000561- collections.deque() objects now have a read-only attribute called maxlen.
562
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000563- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
564 it is has been populated and properly configured in order to prevent
565 window flashing.
566
Guilherme Polo56f5be52009-03-07 01:54:57 +0000567- Issue #4792: Prevent a segfault in _tkinter by using the
568 guaranteed to be safe interp argument given to the PythonCmd in place of
569 the Tcl interpreter taken from a PythonCmd_ClientData.
570
571- Issue #5193: Guarantee that tkinter.Text.search returns a string.
572
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000573- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
574 Original patch by Akira Kitada.
575
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000576- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
577
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000578- Issue #5385: Fixed mmap crash after resize failure on windows.
579
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000580- Issue #5179: Fixed subprocess handle leak on failure on windows.
581
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000582- PEP 372: Added collections.OrderedDict().
583
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000584- The _asdict() for method for namedtuples now returns an OrderedDict().
585
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000586- configparser now defaults to using an ordered dictionary.
587
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000588- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
589 import guess_extension`` was used.
590
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000591- Issue #1733986: Fixed mmap crash in accessing elements of second map object
592 with same tagname but larger size than first map. (Windows)
593
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000594- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
595 overrun.
596
Tarek Ziadéf0721222009-02-28 10:16:43 +0000597- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
598 bdist_rpm command.
599
600- Issue #5378: added --quiet option to Distutils bdist_rpm command.
601
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000602- Issue #5052: make Distutils compatible with 2.3 again.
603
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000604- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
605 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000606
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000607- Issue #5287: Add exception handling around findCaller() call to help out
608 IronPython.
609
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000610- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
611 The file was resized to wrong size.
612
613- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
614
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000615- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000616 from the package_data and the data_files metadata.
617
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000618- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000619 support.TempdirManager, to avoid writing in the tests directory.
620
Tarek Ziadé68c50952009-02-13 23:04:17 +0000621- Issue #4524: distutils build_script command failed with --with-suffix=3.
622 Initial patch by Amaury Forgeot d'Arc.
623
Tarek Ziadé811d6242009-02-13 22:26:15 +0000624- Issue #2461: added tests for distutils.util
625
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000626- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
627 which inherited from numbers.py which did not have __slots__ defined. The
628 numbers hierarchy now has its own __slots__ declarations.
629
Antoine Pitroub353c122009-02-11 00:39:14 +0000630- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
631 encoding.
632
Thomas Heller465c8022009-02-10 18:59:04 +0000633- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
634 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
635
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000636- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
637 under NT and OS2. Patch by Philip Jenvey.
638
Brett Cannonbefb14f2009-02-10 02:10:16 +0000639- Issue #5128: Make compileall properly inspect bytecode to determine if needs
640 to be recreated. This avoids a timing hole thanks to the old reliance on the
641 ctime of the files involved.
642
Guilherme Polob681df42009-02-09 22:33:59 +0000643- Issue #5122: Synchronize tk load failure check to prevent a potential
644 deadlock.
645
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000646- Issue #1818: collections.namedtuple() now supports a keyword argument
647 'rename' which lets invalid fieldnames be automatically converted to
648 positional names in the form, _1, _2, ...
649
Guilherme Poloae098992009-02-09 16:44:24 +0000650- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
651
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000652- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
653 public documented method ``ZipImporter.get_filename()``.
654
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000655- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
656 the execution of packages by looking for and executing a ``__main__``
657 submodule when a package name is supplied. Initial patch by Andi
658 Vajda.
659
Guilherme Polo491aee22009-02-06 23:16:11 +0000660- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
661 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
662 Tkapp_Call when calling from a thread different than the one that created
663 the Tcl interpreter. Patch by Robert Hancock.
664
Eric Smith0e5b5622009-02-06 01:32:42 +0000665- Issue #4285: Change sys.version_info to be a named tuple. Patch by
666 Ross Light.
667
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000668- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000669 environment/Makefile. Patch by Douglas Greiman.
670
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000671- Issue #1276768: The verbose option was not used in the code of
672 distutils.file_util and distutils.dir_util.
673
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000674- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000675 --enabled-shared activated. Initial patch by Dave Peterson.
676
Guilherme Polo7f423952009-02-02 21:17:09 +0000677- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
678
Raymond Hettinger85602262009-02-03 04:19:10 +0000679- The shelve module now defaults to pickle protocol 3.
680
Brett Cannone61426e2009-01-30 01:31:34 +0000681- Fix a bug in the trace module where a bytes object from co_lnotab had its
682 items being passed through ord().
683
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000684- Issue #2047: shutil.move() could believe that its destination path was
685 inside its source path if it began with the same letters (e.g. "src" vs.
686 "src.new").
687
Guilherme Polo5f238482009-01-28 14:41:10 +0000688- Added the ttk module. See issue #2983: Ttk support for Tkinter.
689
Raymond Hettinger89e12962009-01-26 02:09:03 +0000690- Removed isSequenceType(), isMappingType, and isNumberType() from the
691 operator module; use the abstract base classes instead. Also removed
692 the repeat() function; use mul() instead.
693
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000694- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000695 collections.namedtuple() relied on __name__ being defined.
696
697- Backport importlib from Python 3.1. Only the import_module() function has
698 been backported to help facilitate transitions from 2.7 to 3.1.
699
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000700- Issue #1885: distutils. When running sdist with --formats=tar,gztar
701 the tar file was overriden by the gztar one.
702
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000703- Issue #4863: distutils.mwerkscompiler has been removed.
704
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000705- Added a new itertools functions: combinations_with_replacement()
706 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000707
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000708- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000709 allowed non-integer arguments.
710
Jesse Noller41faa542009-01-25 03:45:53 +0000711- Fix and properly document the multiprocessing module's logging
712 support, expose the internal levels and provide proper usage
713 examples.
714
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000715- Issue #1672332: fix unpickling of subnormal floats, which was
716 producing a ValueError on some platforms.
717
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000718- Issue #3881: Help Tcl to load even when started through the
719 unreadable local symlink to "Program Files" on Vista.
720
Martin v. Löwis59e47792009-01-24 14:10:07 +0000721- Issue #4710: Extract directories properly in the zipfile module;
722 allow adding directories to a zipfile.
723
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000724- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000725 --without-threads argument. When this occurs, _multiprocessing will
726 be disabled, and not compiled.
727
Antoine Pitrou08838b62009-01-21 00:55:13 +0000728- Issue #5008: When a file is opened in append mode with the new IO library,
729 do an explicit seek to the end of file (so that e.g. tell() returns the
730 file size rather than 0). This is consistent with the behaviour of the
731 traditional 2.x file object.
732
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000733- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
734 parameter was set.
735
Mark Dickinson8dd05142009-01-20 20:43:58 +0000736- Issue #4842: Always append a trailing 'L' when pickling longs using
737 pickle protocol 0. When reading, the 'L' is optional.
738
Brett Cannonafccd632009-01-20 02:21:27 +0000739- Add the importlib package.
740
Jesse Noller9a0fc972009-01-18 21:12:58 +0000741- Issue #4301: Patch the logging module to add processName support, remove
742 _check_logger_class from multiprocessing.
743
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000744- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000745 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000746
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000747- Issue #4959: inspect.formatargspec now works for keyword only arguments
748 without defaults.
749
Jesse Noller6214edd2009-01-19 16:23:53 +0000750- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
751 for *nix machines for negative handles and large int handles. Without this check
752 it is possible to segfault the interpreter.
753
Jesse Nollerb0516a62009-01-18 03:11:38 +0000754- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
755 in sharedctypes.py.
756
757- Issue #1225107: inspect.isclass() returned True for instances with a custom
758 __getattr__.
759
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000760- Issue #3826 and #4791: The socket module now closes the underlying socket
761 appropriately when it is being used via socket.makefile() objects
762 rather than delaying the close by waiting for garbage collection to do it.
763
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000764- Issue #1696199: Add collections.Counter() for rapid and convenient
765 counting.
766
Antoine Pitrou308705e2009-01-10 16:22:51 +0000767- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
768
Thomas Heller5e4e4272009-01-08 09:34:20 +0000769- Issue #4867: Fixed a crash in ctypes when passing a string to a
770 function without defining argtypes.
771
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000772- Issue #4272: Add an optional argument to the GzipFile constructor to override
773 the timestamp in the gzip stream. The default value remains the current time.
774 The information can be used by e.g. gunzip when decompressing. Patch by
775 Jacques Frechet.
776
Mark Dickinson315a20a2009-01-04 21:34:18 +0000777- Restore Python 2.3 compatibility for decimal.py.
778
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000779- Issue #3638: Remove functions from _tkinter module level that depend on
780 TkappObject to work with multiple threads.
781
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000782- Issue #4718: Adapt the wsgiref package so that it actually works with
783 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000784 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
785
Raymond Hettinger771ed762009-01-03 19:20:32 +0000786- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
787 to the decimal module.
788
Georg Brandl3a9b0622009-01-03 22:07:57 +0000789- Fractions.from_float() no longer loses precision for integers too big to
790 cast as floats.
791
Mark Dickinsonf9236412009-01-02 23:23:21 +0000792- Issue #4812: add missing underscore prefix to some internal-use-only
793 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
794
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000795- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000796 did unnecessary work in the common case where no key function was specified.
797
Georg Brandlb1441c72009-01-03 22:33:39 +0000798- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
799 the function is not a generator.
800
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000801- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
802 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000803
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000804- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000805 function. Original patch by Thomas Heller.
806
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000807- Issue #3767: Convert Tk object to string in tkColorChooser.
808
Martin v. Löwise354d782008-12-29 16:03:04 +0000809- Issue #3248: Allow placing ScrolledText in a PanedWindow.
810
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000811- Issue #4444: Allow assertRaises() to be used as a context handler, so that
812 the code under test can be written inline if more practical.
813
Georg Brandldb7b6b92009-01-01 15:53:14 +0000814- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
815 works as expected in the interactive environment.
816
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000817- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
818 Gabriel Genellina.
819
Antoine Pitrou180a3362008-12-14 16:36:46 +0000820- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
821 boundary.
822
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000823- Issue #4223: inspect.getsource() will now correctly display source code
824 for packages loaded via zipimport (or any other conformant PEP 302
825 loader). Original patch by Alexander Belopolsky.
826
827- Issue #4201: pdb can now access and display source code loaded via
828 zipimport (or any other conformant PEP 302 loader). Original patch by
829 Alexander Belopolsky.
830
831- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
832 302 conformant loader) will now work correctly in most cases (they
833 are still subject to the constraints that exist for all code running
834 from inside a module loaded via a PEP 302 loader and attempting to
835 perform IO operations based on __file__). Original patch by
836 Alexander Belopolsky.
837
838- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
839 allows backporting to maintenance branches. Original patch by
840 Alexander Belopolsky.
841
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000842- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
843 a non-ASCII letter.
844
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000845- Issue #4616: TarFile.utime(): Restore directory times on Windows.
846
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000847- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
848 codec cannot be found. This is for compatibility with the builtin behavior.
849
Facundo Batista708d5812008-12-11 04:20:07 +0000850- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
851 give correct results in the case where one argument is a quiet NaN
852 and the other is a finite number that requires rounding.
853
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000854- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
855 libs.
856
Georg Brandlf9734072008-12-07 15:30:06 +0000857- Added the subprocess.check_call_output() convenience function to get output
858 from a subprocess on success or raise an exception on error.
859
860- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
861 support unusual filenames (such as those containing semi-colons) in
862 Content-Disposition headers.
863
864- Issue #4384: Added logging integration with warnings module using
865 captureWarnings(). This change includes a NullHandler which does nothing;
866 it will be of use to library developers who want to avoid the "No handlers
867 could be found for logger XXX" message which can appear if the library user
868 doesn't configure logging.
869
870- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
871 exception.
872
Georg Brandleee31162008-12-07 15:15:22 +0000873- Issue #4529: fix the parser module's validation of try-except-finally
874 statements.
875
876- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
877 not a malformed option.
878
879- Added the subprocess.check_output() convenience function to get output
880 from a subprocess on success or raise an exception on error.
881
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000882- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
883 the corresponding tests now pass.
884
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000885- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
886 it was calling the wrong open() function.
887
Fred Drake9a0a65b2008-12-04 19:24:50 +0000888- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
889 support unusual filenames (such as those containing semi-colons) in
890 Content-Disposition headers.
891
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000892- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
893 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
894
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000895- Issue #5104: The socket module now raises OverflowError when 16-bit port and
896 protocol numbers are supplied outside the allowed 0-65536 range on bind()
897 and getservbyport().
898
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000899Tools/Demos
900-----------
901
Antoine Pitrou8a681222009-02-07 17:13:31 +0000902- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
903 and make it 2.6-compatible.
904
Guilherme Poloa7d27972009-01-28 16:06:51 +0000905- Ttk demos added in Demo/tkinter/ttk/
906
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000907- Issue #4677: add two list comprehension tests to pybench.
908
Georg Brandlb1441c72009-01-03 22:33:39 +0000909
910Build
911-----
912
Antoine Pitrou8966c992009-05-01 21:18:27 +0000913- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
914 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
915
Matthias Klose55708cc2009-04-30 08:06:49 +0000916- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
917 the order that backends for the dbm extension are checked.
918
Matthias Klose906785c2009-02-22 23:18:38 +0000919- Link the shared python library with $(MODLIBS).
920
Martin v. Löwis11f72102009-02-10 13:13:30 +0000921- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
922
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000923- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
924
Martin v. Löwise97637d2009-01-11 09:45:11 +0000925- Issue #4895: Use _strdup on Windows CE.
926
Georg Brandlb1441c72009-01-03 22:33:39 +0000927- Issue #4472: "configure --enable-shared" now works on OSX
928
929- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
930
931- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
932
933- Issue #4289: Remove Cancel button from AdvancedDlg.
934
935- Issue #1656675: Register a drop handler for .py* files on Windows.
936
937- Issue #4120: Exclude manifest from extension modules in VS2008.
938
939- Issue #4091: Install pythonxy.dll in system32 again.
940
941- Issue #4018: Disable "for me" installations on Vista.
942
943- Issue #3758: Add ``patchcheck`` build target to .PHONY.
944
945- Issue #4204: Fixed module build errors on FreeBSD 4.
946
947
948C-API
949-----
950
Mark Dickinson21776072009-02-10 16:13:25 +0000951- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
952 for negative arguments. Previously, it raised TypeError.
953
Georg Brandlb1441c72009-01-03 22:33:39 +0000954- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
955
956- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
957 the GIL is released, or owned by another thread.
958
959- Issue #4122: On Windows, fix a compilation error when using the
960 Py_UNICODE_ISSPACE macro in an extension module.
961
962
Mark Dickinsone675f082008-12-11 21:56:00 +0000963Extension Modules
964-----------------
965
Gregory P. Smith365a1862009-02-12 07:35:29 +0000966- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
967 supporting objects as input no matter how it was compiled (built in
968 implementations or external openssl library).
969
Mark Dickinson29500f62009-01-15 15:36:10 +0000970- Issue #4397: Fix occasional test_socket failure on OS X.
971
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000972- Issue #4279: Fix build of parsermodule under Cygwin.
973
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000974- Issue #4751: hashlib now releases the GIL when hashing large buffers
975 (with a hardwired threshold of 2048 bytes), allowing better parallelization
976 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
977
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000978- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
979
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000980- Issue #4738: Each zlib object now has a separate lock, allowing to compress
981 or decompress several streams at once on multi-CPU systems. Also, the GIL
982 is now released when computing the CRC of a large buffer. Patch by ebfe.
983
Georg Brandlb1441c72009-01-03 22:33:39 +0000984- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
985
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000986- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
987
Mark Dickinsone675f082008-12-11 21:56:00 +0000988- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
989 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000990
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000991- Issue #4583: array.array would not always prohibit resizing when a buffer
992 has been exported, resulting in an interpreter crash when accessing the
993 buffer.
994
Martin v. Löwis841edad2008-11-30 10:36:49 +0000995
Jack Diederiche0cbd692009-04-01 04:27:09 +0000996- Issue #5228: Make functools.partial objects can now be pickled.
997
Guilherme Polo9de29af2009-01-28 20:40:48 +0000998Tests
999-----
1000
R. David Murraya21e4ca2009-03-31 23:16:50 +00001001- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001002 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001003 from test support, which does the conversion.
1004
Guilherme Polo9de29af2009-01-28 20:40:48 +00001005- Issue #5083: New 'gui' resource for regrtest.
1006
1007
Brett Cannon7317c1e2008-11-25 19:19:17 +00001008Docs
1009----
1010
Georg Brandl52b92cc2008-05-25 09:43:03 +00001011
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001012**(For information about older versions, consult the HISTORY file.)**