blob: 2d95ef84fa1779d2cb5a99e8f969b8eda842268f [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Eric Smith6dc46f52009-04-27 20:39:49 +000015- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
16 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
17
Eric Smithcc32a112009-04-26 21:35:14 +000018- Issue #5835: Deprecate PyOS_ascii_formatd.
19
Martin v. Löwis71efeb72009-04-26 01:02:07 +000020- Issue #4971: Fix titlecase for characters that are their own
21 titlecase, but not their own uppercase.
22
Benjamin Peterson193152c2009-04-25 01:08:45 +000023- Issue #5283: Setting __class__ in __del__ caused a segfault.
24
Mark Dickinsonad476da2009-04-23 19:14:16 +000025- Issue #5816: complex(repr(z)) now recovers z exactly, even when
26 z involves nans, infs or negative zeros.
27
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000028- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000029
Mark Dickinsone6a076d2009-04-18 11:48:33 +000030- Issue #1869 (and many duplicates): make round(x, n) correctly
31 rounded for a float x, by using the decimal <-> binary conversions
32 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
33 consistently agrees with format(x, '.2f').
34
Benjamin Petersonae937c02009-04-18 20:54:08 +000035- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
36 some builtin types.
37
Eric Smith0923d1d2009-04-16 20:16:10 +000038- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
39
Eric Smith35e84722009-04-16 20:21:28 +000040- Issue #5515: str.format() type 'n' combined with commas and leading
41 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000042
43- Implement PEP 378, Format Specifier for Thousands Separator, for
44 floats.
45
Mark Dickinson3370cce2009-04-17 22:40:53 +000046- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000047 1e11, not 1e12. This avoids printing 13 significant digits in
48 situations where only 12 of them are correct. Example problem
49 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
50 long time.)
51
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000052- Issue #1580: On most platforms, use a 'short' float repr: for a
53 finite float x, repr(x) now outputs a string based on the shortest
54 sequence of decimal digits that rounds to x. Previous behaviour was
55 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000056 Another minor difference is that the new repr switches to
57 exponential notation at 1e16 instead of the previous 1e17; this
58 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000059
60 There's a new sys attribute sys.float_repr_style, which takes
61 the value 'short' to indicate that we're using short float repr,
62 and 'legacy' if the short float repr isn't available for one
63 reason or another.
64
65 The float repr change involves incorporating David Gay's 'perfect
66 rounding' code into the Python core (it's in Python/dtoa.c). As a
67 secondary consequence, all string-to-float and float-to-string
68 conversions (including all float formatting operations) will be
69 correctly rounded on these platforms.
70
71 See issue 1580 discussions for details of platforms for which
72 this change does not apply.
73
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000074- Issue #5759: float() didn't call __float__ on str subclasses.
75
Georg Brandlabc38772009-04-12 15:51:51 +000076- The string.maketrans() function is deprecated; there is a new static method
77 maketrans() on the bytes and bytearray classes. This removes confusion about
78 the types string.maketrans() is supposed to work with, and mirrors the
79 methods available on the str class.
80
R. David Murraydc6da8a2009-04-09 22:16:43 +000081- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
82 its clarity and its speed.
83
Matthias Klose091c7b12009-04-07 13:24:27 +000084- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
85 to avoid compiler warnings.
86
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000087Installation
88------------
89
90- Issue #5756: Install idle and pydoc with a 3 suffix.
91
Benjamin Petersonbd35b032009-04-04 23:16:41 +000092Library
93-------
94
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +000095- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
96 string is already in normalized form, by performing a quick check beforehand.
97 Original patch by Rauli Ruohonen.
98
Antoine Pitrou57f3d932009-04-27 21:04:19 +000099- Issue #5853: calling a function of the mimetypes module from several threads
100 at once could hit the recursion limit if the mimetypes database hadn't been
101 initialized before.
102
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000103- Issue #5854: Updated __all__ to include some missing names and remove some
104 names which should not be exported.
105
Thomas Heller34596a92009-04-24 20:50:00 +0000106- Issue #3102: All global symbols that the _ctypes extension defines
107 are now prefixed with 'Py' or '_ctypes'.
108
109- Issue #5041: ctypes does now allow pickling wide character.
110
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000111- Issue #5812: For the two-argument form of the Fraction constructor,
112 Fraction(m, n), m and n are permitted to be arbitrary Rational
113 instances.
114
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000115- Issue #5812: Fraction('1e6') is valid: more generally, any string
116 that's valid for float() is now valid for Fraction(), with the
117 exception of strings representing NaNs and infinities.
118
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000119- Issue #5734: BufferedRWPair was poorly tested and had several glaring
120 bugs. Patch by Brian Quinlan.
121
R. David Murray9e94ddf2009-04-13 17:06:33 +0000122- Issue #1161031: fix readwrite select flag handling: POLLPRI now
123 results in a handle_expt_event call, not handle_read_event, and POLLERR
124 and POLLNVAL now call handle_close, not handle_expt_event. Also,
125 dispatcher now has an 'ignore_log_types' attribute for suppressing
126 log messages, which is set to 'warning' by default.
127
Matthias Klosea3d29e82009-04-07 13:13:10 +0000128- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
129 new arguments introduced in 2.5.
130
Walter Dörwald1b08b302009-04-25 14:13:56 +0000131- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
132 makeunicodedata.py and regenerated the Unicode database (This fixes
133 u'\u1d79'.lower() == '\x00').
134
Matthias Klose535336f2009-04-07 13:49:45 +0000135Extension Modules
136-----------------
137
Mark Dickinsonea835e72009-04-19 20:40:33 +0000138- Issue #5463: In struct module, remove deprecated float coercion
139 for integer type codes: struct.pack('L', 0.3) should now raise
140 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
141 The version number has been bumped to 0.3.
142
Matthias Klose535336f2009-04-07 13:49:45 +0000143- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
144 using Berkley-DB.
145
Nick Coghlan47384702009-04-22 16:13:36 +0000146Tests
147-----
148
149- Issue #5354: New test support function import_fresh_module() makes
150 it easy to import both normal and optimised versions of modules.
151 test_heapq and test_warnings have been adjusted to use it, tests for
152 other modules with both C and Python implementations in the stdlib
153 can be adjusted to use it over time.
154
Walter Dörwald4ba80132009-04-25 12:48:43 +0000155- Issue #5837: Certain sequences of calls to set() and unset() for
156 support.EnvironmentVarGuard objects restored the environment variables
157 incorrectly on __exit__.
158
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000159
Benjamin Petersond1735892009-03-07 18:46:21 +0000160What's New in Python 3.1 alpha 2?
161=================================
162
Benjamin Peterson88f14352009-04-04 21:06:52 +0000163*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000164
165Core and Builtins
166-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000167
Eric Smith1e1d7d22009-04-03 22:25:33 +0000168- Implement PEP 378, Format Specifier for Thousands Separator, for
169 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000170
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000171- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
172
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000173- Issue #5499: The 'c' code for argument parsing functions now only accepts a
174 byte, and the 'C' code only accepts a unicode character.
175
Georg Brandl406b3d82009-04-11 21:24:37 +0000176- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
177 when hitting the recursion limit under certain circumstances.
178
Brett Cannon0759dd62009-04-01 18:13:07 +0000179- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
180
Georg Brandlab6f2f62009-03-31 04:16:10 +0000181- Fix a segfault when running test_exceptions with coverage, caused by
182 insufficient checks in accessors of Exception.__context__.
183
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000184- Issue #5604: non-ASCII characters in module name passed to
185 imp.find_module() were converted to UTF-8 while the path is
186 converted to the default filesystem encoding, causing nonsense.
187
Benjamin Peterson09832742009-03-26 17:15:46 +0000188- Issue #5126: str.isprintable() returned False for space characters.
189
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000190- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
191 the end sys.path, for compatibility with the system install of Python.
192
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000193- Issue #4688: Add a heuristic so that tuples and dicts containing only
194 untrackable objects are not tracked by the garbage collector. This can
195 reduce the size of collections and therefore the garbage collection overhead
196 on long-running programs, depending on their particular use of datatypes.
197
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000198- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
199 improve its performance. Long divisions and remainder operations
200 are now between 50% and 150% faster.
201
Mark Dickinsonbd792642009-03-18 20:06:12 +0000202- Issue #4258: Make it possible to use base 2**30 instead of base
203 2**15 for the internal representation of integers, for performance
204 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
205 --enable-big-digits option to configure, which overrides the
206 default. Add sys.int_info structseq to provide information about
207 the internal format.
208
Mark Dickinson081dfee2009-03-18 14:47:41 +0000209- Issue #4474: PyUnicode_FromWideChar now converts characters outside
210 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
211 and sizeof(Py_UNICODE) == 2.
212
Eric Smith8ec90442009-03-14 12:29:34 +0000213- Issue #5237: Allow auto-numbered fields in str.format(). For
214 example: '{} {}'.format(1, 2) == '1 2'.
215
Antoine Pitrou652e7072009-03-13 19:25:20 +0000216- Issue #5392: when a very low recursion limit was set, the interpreter would
217 abort with a fatal error after the recursion limit was hit twice.
218
Matthias Klose042f1332009-04-04 14:32:42 +0000219- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
220 short file names.
221
Benjamin Petersond1735892009-03-07 18:46:21 +0000222Library
223-------
224
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000225- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000226 mailbox.MH.get_message().
227
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000228- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
229 error substitutions from non-strict codec error callbacks in
230 incrementalencoder and StreamWriter.
231
Georg Brandl33c28812009-04-01 23:07:29 +0000232- Issue #5656: Fix the coverage reporting when running the test suite with
233 the -T argument.
234
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000235- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
236
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000237- Issue #5624: Fix the _winreg module name still used in several modules.
238
Benjamin Petersona1b49012009-03-31 23:11:32 +0000239- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
240
Jesse Nollera9314042009-03-31 22:36:44 +0000241- Issue #5619: Multiprocessing children disobey the debug flag and causes
242 popups on windows buildbots. Patch applied to work around this issue.
243
Jesse Noller32d68c22009-03-31 18:48:42 +0000244- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
245
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000246- Issue #5387: Fixed mmap.move crash by integer overflow.
247
Jesse Nollerf8d00852009-03-31 03:25:07 +0000248- Issue #5261: Patch multiprocessing's semaphore.c to support context
249 manager use: "with multiprocessing.Lock()" works now.
250
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000251- Issue #5236: Change time.strptime() to only take strings. Didn't work with
252 bytes already but the failure was non-obvious.
253
Jesse Noller7af4ef82009-03-30 16:47:15 +0000254- Issue #5177: Multiprocessing's SocketListener class now uses
255 socket.SO_REUSEADDR on all connections so that the user no longer needs
256 to wait 120 seconds for the socket to expire.
257
Benjamin Peterson48e24782009-03-29 13:02:52 +0000258- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
259
Antoine Pitrou66994e12009-03-29 00:45:26 +0000260- Issue #1174606: Calling read() without arguments of an unbounded file
261 (typically /dev/zero under Unix) could crash the interpreter.
262
Benjamin Peterson59406a92009-03-26 17:10:29 +0000263- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
264 io.BufferedRandom have been deprecated for removal in Python 3.2.
265
Lars Gustäbel42e00912009-03-22 20:34:29 +0000266- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
267 forever on incomplete input. That caused tarfile.open() to hang when used
268 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
269 partial bzip2 compressed data.
270
Mark Dickinson79f52032009-03-17 23:12:51 +0000271- Issue #2110: Add support for thousands separator and 'n' type
272 specifier to Decimal.__format__
273
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000274- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
275 '>' alignment characters.
276
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000277- The error detection code in FileIO.close() could fail to reflect the `errno`
278 value, and report it as -1 instead.
279
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000280- Issue #5016: FileIO.seekable() could return False if the file position
281 was negative when truncated to a C int. Patch by Victor Stinner.
282
Mark Dickinsonae681df2009-03-21 10:26:31 +0000283Extension Modules
284-----------------
285
Benjamin Petersone099b372009-04-04 17:09:35 +0000286- Issue #5391: mmap now deals exclusively with bytes.
287
Mark Dickinsonae681df2009-03-21 10:26:31 +0000288- Issue #5463: In struct module, remove deprecated overflow wrapping
289 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000290 struct.error instead of returning b'\xff\xff\xff\xff'. The
291 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
292 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000293
Benjamin Petersond1735892009-03-07 18:46:21 +0000294
Benjamin Petersona58a6262009-03-07 16:34:40 +0000295What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000296================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000297
Benjamin Petersona58a6262009-03-07 16:34:40 +0000298*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000299
300Core and Builtins
301-----------------
302
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000303- The io module has been reimplemented in C for speed.
304
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000305- Give dict views an informative __repr__.
306
Eric Smith5e5c0db2009-02-20 14:25:03 +0000307- Issue #5247: Improve error message when unknown format codes are
308 used when using str.format() with str, int, and float arguments.
309
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000310- Issue #5249: time.strftime returned malformed string when format string
311 contained non ascii character on windows.
312
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000313- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
314 source has already been decoded into str.
315
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000316- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
317 rotating the object pointer by 4 bits to the right.
318
Mark Dickinson87ec0852009-02-09 17:15:59 +0000319- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
320 it now forces its argument to double before testing for infinity.
321
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000322- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
323 returns a non-number type.
324
Benjamin Peterson87618552009-02-08 15:00:52 +0000325- Issue #5182: Removed memoryview.__str__.
326
Mark Dickinsonc008a172009-02-01 13:59:22 +0000327- Issue #1717: Removed builtin cmp() function, dropped tp_compare
328 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000329 the type definition cmpfunc. The tp_compare slot has been renamed
330 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000331
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000332- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000333 were suppressing all exceptions. These include list() and bytearray().
334
Mark Dickinson1124e712009-01-28 21:25:58 +0000335- Issue #4707: round(x, n) now returns an integer if x is an integer.
336 Previously it returned a float.
337
Antoine Pitroub52ec782009-01-25 16:34:23 +0000338- Issue #4753: By enabling a configure option named '--with-computed-gotos'
339 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
340 evaluation loop is compiled with a new dispatch mechanism which gives
341 speedups of up to 20%, depending on the system, on various benchmarks.
342
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000343- Issue #4874: Most builtin decoders now reject unicode input.
344
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000345- Issue #4842: Don't allow trailing 'L' when constructing an integer
346 from a string.
347
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000348- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
349
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000350- Issue #4838: When a module is deallocated, free the memory backing the
351 optional module state data.
352
Mark Dickinson8055afd2009-01-17 10:04:45 +0000353- Issue #4910: Rename nb_long slot to nb_reserved, and change its
354 type to (void *).
355
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000356- Issue #4935: The overflow checking code in the expandtabs() method common
357 to str, bytes and bytearray could be optimized away by the compiler, letting
358 the interpreter segfault instead of raising an error.
359
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000360- Issue #3720: Fix a crash when an iterator modifies its class and removes its
361 __next__ method.
362
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000363- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
364 function no longer attempt to call the __long__ slot to convert an object
365 to an integer. Only the __int__ and __trunc__ slots are examined.
366
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000367- Issue #4893: Use NT threading on CE.
368
Martin v. Löwisec59d042009-01-12 07:59:10 +0000369- Issue #4915: Port sysmodule to Windows CE.
370
Antoine Pitrouab868312009-01-10 15:40:25 +0000371- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
372 common cases are optimized thanks to a dedicated fast path and a moderate
373 amount of loop unrolling.
374
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000375- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
376 collecting the oldest generation) so that allocating lots of objects without
377 destroying them does not show quadratic performance. Based on a proposal by
378 Martin von Löwis at
379 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
380
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000381- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000382 having been closed (for instance, a read() call could return some
383 previously buffered data). Patch by Dmitry Vasiliev.
384
Antoine Pitrou05608432009-01-09 18:53:14 +0000385- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
386 flag to work properly. Furthermore, when specifying -u, the text stdout
387 and stderr streams have line-by-line buffering enabled (the default being
388 to buffer arbitrary chunks of data).
389
Raymond Hettinger35631532009-01-09 03:58:09 +0000390- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
391 instead of ints (reducing its size from 4 to 8 times thereby reducing
392 Python's overall memory).
393
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000394- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
395 an existing .py counterpart, override the co_filename attributes of all
396 code objects if the original filename is obsolete (which can happen if the
397 file has been renamed, moved, or if it is accessed through different paths).
398 Patch by Ziga Seilnacht and Jean-Paul Calderone.
399
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000400- Issue #4580: Fix slicing of memoryviews when the item size is greater than
401 one byte. Also fixes the meaning of len() so that it returns the number of
402 items, rather than the size in bytes.
403
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000404- Issue #4075: Use OutputDebugStringW in Py_FatalError.
405
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000406- Issue #4747: When the terminal does not use utf-8, executing a script with
407 non-ascii characters in its name could fail with a "SyntaxError: None" error.
408
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000409- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000410 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000411
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000412- Issue #3680: Reference cycles created through a dict, set or deque iterator
413 did not get collected.
414
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000415- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
416 where the tp_hash and tp_dict slots are both NULL.
417
Georg Brandlccc47b62008-12-28 11:44:14 +0000418- Issue #4759: None is now allowed as the first argument of
419 bytearray.translate(). It was always allowed for bytes.translate().
420
Skip Montanaro80072cb2008-12-23 03:51:14 +0000421- Added test case to ensure attempts to read from a file opened for writing
422 fail.
423
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000424- Issue #3106: Speedup some comparisons (str/str and int/int).
425
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000426- Issue #2183: Simplify and optimize bytecode for list, dict and set
427 comprehensions. Original patch for list comprehensions by Neal Norwitz.
428
Antoine Pitrou621601a2008-12-17 23:18:19 +0000429- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
430 print elapsed times, not only when some objects are uncollectable /
431 unreachable. Original patch by Neil Schemenauer.
432
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000433- Issue #3439: Add a bit_length method to int.
434
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000435- Issue #2173: When getting device encoding, check that return value of
436 nl_langinfo is not the empty string. This was causing silent build
437 failures on OS X.
438
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000439- Issue #4597: Fixed several opcodes that weren't always propagating
440 exceptions.
441
442- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000443 context manager returns a value that cannot be converted to a bool.
444
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000445- Issue #4445: Replace "sizeof(PyBytesObject)" with
446 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
447 bytes instances. On a typical machine this saves 3 bytes of memory
448 (on average) per allocation of a bytes instance.
449
Christian Heimesa872de52008-12-05 08:26:55 +0000450- Issue #4533: File read operation was dreadfully slow due to a slowly
451 growing read buffer. Fixed by using the same growth rate algorithm as
452 Python 2.x.
453
Antoine Pitrou5504e892008-12-06 21:27:53 +0000454- Issue #4509: Various issues surrounding resize of bytearray objects to
455 which there are buffer exports (e.g. memoryview instances).
456
Georg Brandlf9734072008-12-07 15:30:06 +0000457- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
458 method on file objects with closefd=False. The file descriptor is still
459 kept open but the file object behaves like a closed file. The ``FileIO``
460 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000461
Antoine Pitroubc420402008-12-07 20:14:49 +0000462- Issue #4569: Interpreter crash when mutating a memoryview with an item size
463 larger than 1.
464
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000465- Issue #4748: Lambda generators no longer return a value.
466
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000467- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
468
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000469Library
470-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000471
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000472- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000473 sysconfig.get_config_vars.
474
Tarek Ziadé23336082009-04-25 12:39:56 +0000475- Issue #4951: Fixed failure in test_httpservers.
476
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000477- Issue #5795: Fixed test_distutils failure on Debian ppc.
478
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000479- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
480
Georg Brandl1f9fa312009-04-27 16:42:58 +0000481- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
482 a value in SafeConfigParser.
483
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000484- Issue #5732: added a new command in Distutils: check.
485
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000486- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000487 platforms. Initial patch by Paul Moore.
488
Tarek Ziadéf6370502009-04-05 22:57:21 +0000489- Issue #5095: Added bdist_msi to the list of bdist supported formats.
490 Initial fix by Steven Bethard.
491
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000492- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
493 Initial fix by Wayne Davison.
494
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000495- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000496
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000497- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000498
Brett Cannonf47e84c2009-04-01 16:06:01 +0000499- Issue #1665206 (partially): Move imports in cgitb to the top of the module
500 instead of performing them in functions. Helps prevent import deadlocking in
501 threads.
502
R. David Murraye59482e2009-04-01 03:42:00 +0000503- Issue #2522: locale.format now checks its first argument to ensure it has
504 been passed only one pattern, avoiding mysterious errors where it appeared
505 that it was failing to do localization.
506
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000507- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
508 Brandl.
509
Antoine Pitrou350370c2009-03-14 00:13:13 +0000510- Issue #1222: locale.format() bug when the thousands separator is a space
511 character.
512
Tarek Ziadé516db942009-03-11 12:52:00 +0000513- Issue #5472: Fixed distutils.test_util tear down. Original patch by
514 Tim Golden.
515
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000516- collections.deque() objects now have a read-only attribute called maxlen.
517
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000518- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
519 it is has been populated and properly configured in order to prevent
520 window flashing.
521
Guilherme Polo56f5be52009-03-07 01:54:57 +0000522- Issue #4792: Prevent a segfault in _tkinter by using the
523 guaranteed to be safe interp argument given to the PythonCmd in place of
524 the Tcl interpreter taken from a PythonCmd_ClientData.
525
526- Issue #5193: Guarantee that tkinter.Text.search returns a string.
527
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000528- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
529 Original patch by Akira Kitada.
530
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000531- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
532
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000533- Issue #5385: Fixed mmap crash after resize failure on windows.
534
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000535- Issue #5179: Fixed subprocess handle leak on failure on windows.
536
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000537- PEP 372: Added collections.OrderedDict().
538
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000539- The _asdict() for method for namedtuples now returns an OrderedDict().
540
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000541- configparser now defaults to using an ordered dictionary.
542
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000543- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
544 import guess_extension`` was used.
545
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000546- Issue #1733986: Fixed mmap crash in accessing elements of second map object
547 with same tagname but larger size than first map. (Windows)
548
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000549- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
550 overrun.
551
Tarek Ziadéf0721222009-02-28 10:16:43 +0000552- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
553 bdist_rpm command.
554
555- Issue #5378: added --quiet option to Distutils bdist_rpm command.
556
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000557- Issue #5052: make Distutils compatible with 2.3 again.
558
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000559- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
560 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000561
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000562- Issue #5287: Add exception handling around findCaller() call to help out
563 IronPython.
564
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000565- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
566 The file was resized to wrong size.
567
568- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
569
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000570- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000571 from the package_data and the data_files metadata.
572
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000573- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000574 support.TempdirManager, to avoid writing in the tests directory.
575
Tarek Ziadé68c50952009-02-13 23:04:17 +0000576- Issue #4524: distutils build_script command failed with --with-suffix=3.
577 Initial patch by Amaury Forgeot d'Arc.
578
Tarek Ziadé811d6242009-02-13 22:26:15 +0000579- Issue #2461: added tests for distutils.util
580
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000581- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
582 which inherited from numbers.py which did not have __slots__ defined. The
583 numbers hierarchy now has its own __slots__ declarations.
584
Antoine Pitroub353c122009-02-11 00:39:14 +0000585- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
586 encoding.
587
Thomas Heller465c8022009-02-10 18:59:04 +0000588- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
589 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
590
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000591- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
592 under NT and OS2. Patch by Philip Jenvey.
593
Brett Cannonbefb14f2009-02-10 02:10:16 +0000594- Issue #5128: Make compileall properly inspect bytecode to determine if needs
595 to be recreated. This avoids a timing hole thanks to the old reliance on the
596 ctime of the files involved.
597
Guilherme Polob681df42009-02-09 22:33:59 +0000598- Issue #5122: Synchronize tk load failure check to prevent a potential
599 deadlock.
600
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000601- Issue #1818: collections.namedtuple() now supports a keyword argument
602 'rename' which lets invalid fieldnames be automatically converted to
603 positional names in the form, _1, _2, ...
604
Guilherme Poloae098992009-02-09 16:44:24 +0000605- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
606
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000607- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
608 public documented method ``ZipImporter.get_filename()``.
609
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000610- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
611 the execution of packages by looking for and executing a ``__main__``
612 submodule when a package name is supplied. Initial patch by Andi
613 Vajda.
614
Guilherme Polo491aee22009-02-06 23:16:11 +0000615- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
616 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
617 Tkapp_Call when calling from a thread different than the one that created
618 the Tcl interpreter. Patch by Robert Hancock.
619
Eric Smith0e5b5622009-02-06 01:32:42 +0000620- Issue #4285: Change sys.version_info to be a named tuple. Patch by
621 Ross Light.
622
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000623- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000624 environment/Makefile. Patch by Douglas Greiman.
625
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000626- Issue #1276768: The verbose option was not used in the code of
627 distutils.file_util and distutils.dir_util.
628
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000629- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000630 --enabled-shared activated. Initial patch by Dave Peterson.
631
Guilherme Polo7f423952009-02-02 21:17:09 +0000632- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
633
Raymond Hettinger85602262009-02-03 04:19:10 +0000634- The shelve module now defaults to pickle protocol 3.
635
Brett Cannone61426e2009-01-30 01:31:34 +0000636- Fix a bug in the trace module where a bytes object from co_lnotab had its
637 items being passed through ord().
638
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000639- Issue #2047: shutil.move() could believe that its destination path was
640 inside its source path if it began with the same letters (e.g. "src" vs.
641 "src.new").
642
Guilherme Polo5f238482009-01-28 14:41:10 +0000643- Added the ttk module. See issue #2983: Ttk support for Tkinter.
644
Raymond Hettinger89e12962009-01-26 02:09:03 +0000645- Removed isSequenceType(), isMappingType, and isNumberType() from the
646 operator module; use the abstract base classes instead. Also removed
647 the repeat() function; use mul() instead.
648
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000649- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000650 collections.namedtuple() relied on __name__ being defined.
651
652- Backport importlib from Python 3.1. Only the import_module() function has
653 been backported to help facilitate transitions from 2.7 to 3.1.
654
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000655- Issue #1885: distutils. When running sdist with --formats=tar,gztar
656 the tar file was overriden by the gztar one.
657
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000658- Issue #4863: distutils.mwerkscompiler has been removed.
659
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000660- Added a new itertools functions: combinations_with_replacement()
661 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000662
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000663- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000664 allowed non-integer arguments.
665
Jesse Noller41faa542009-01-25 03:45:53 +0000666- Fix and properly document the multiprocessing module's logging
667 support, expose the internal levels and provide proper usage
668 examples.
669
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000670- Issue #1672332: fix unpickling of subnormal floats, which was
671 producing a ValueError on some platforms.
672
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000673- Issue #3881: Help Tcl to load even when started through the
674 unreadable local symlink to "Program Files" on Vista.
675
Martin v. Löwis59e47792009-01-24 14:10:07 +0000676- Issue #4710: Extract directories properly in the zipfile module;
677 allow adding directories to a zipfile.
678
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000679- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000680 --without-threads argument. When this occurs, _multiprocessing will
681 be disabled, and not compiled.
682
Antoine Pitrou08838b62009-01-21 00:55:13 +0000683- Issue #5008: When a file is opened in append mode with the new IO library,
684 do an explicit seek to the end of file (so that e.g. tell() returns the
685 file size rather than 0). This is consistent with the behaviour of the
686 traditional 2.x file object.
687
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000688- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
689 parameter was set.
690
Mark Dickinson8dd05142009-01-20 20:43:58 +0000691- Issue #4842: Always append a trailing 'L' when pickling longs using
692 pickle protocol 0. When reading, the 'L' is optional.
693
Brett Cannonafccd632009-01-20 02:21:27 +0000694- Add the importlib package.
695
Jesse Noller9a0fc972009-01-18 21:12:58 +0000696- Issue #4301: Patch the logging module to add processName support, remove
697 _check_logger_class from multiprocessing.
698
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000699- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000700 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000701
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000702- Issue #4959: inspect.formatargspec now works for keyword only arguments
703 without defaults.
704
Jesse Noller6214edd2009-01-19 16:23:53 +0000705- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
706 for *nix machines for negative handles and large int handles. Without this check
707 it is possible to segfault the interpreter.
708
Jesse Nollerb0516a62009-01-18 03:11:38 +0000709- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
710 in sharedctypes.py.
711
712- Issue #1225107: inspect.isclass() returned True for instances with a custom
713 __getattr__.
714
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000715- Issue #3826 and #4791: The socket module now closes the underlying socket
716 appropriately when it is being used via socket.makefile() objects
717 rather than delaying the close by waiting for garbage collection to do it.
718
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000719- Issue #1696199: Add collections.Counter() for rapid and convenient
720 counting.
721
Antoine Pitrou308705e2009-01-10 16:22:51 +0000722- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
723
Thomas Heller5e4e4272009-01-08 09:34:20 +0000724- Issue #4867: Fixed a crash in ctypes when passing a string to a
725 function without defining argtypes.
726
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000727- Issue #4272: Add an optional argument to the GzipFile constructor to override
728 the timestamp in the gzip stream. The default value remains the current time.
729 The information can be used by e.g. gunzip when decompressing. Patch by
730 Jacques Frechet.
731
Mark Dickinson315a20a2009-01-04 21:34:18 +0000732- Restore Python 2.3 compatibility for decimal.py.
733
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000734- Issue #3638: Remove functions from _tkinter module level that depend on
735 TkappObject to work with multiple threads.
736
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000737- Issue #4718: Adapt the wsgiref package so that it actually works with
738 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000739 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
740
Raymond Hettinger771ed762009-01-03 19:20:32 +0000741- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
742 to the decimal module.
743
Georg Brandl3a9b0622009-01-03 22:07:57 +0000744- Fractions.from_float() no longer loses precision for integers too big to
745 cast as floats.
746
Mark Dickinsonf9236412009-01-02 23:23:21 +0000747- Issue #4812: add missing underscore prefix to some internal-use-only
748 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
749
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000750- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000751 did unnecessary work in the common case where no key function was specified.
752
Georg Brandlb1441c72009-01-03 22:33:39 +0000753- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
754 the function is not a generator.
755
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000756- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
757 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000758
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000759- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000760 function. Original patch by Thomas Heller.
761
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000762- Issue #3767: Convert Tk object to string in tkColorChooser.
763
Martin v. Löwise354d782008-12-29 16:03:04 +0000764- Issue #3248: Allow placing ScrolledText in a PanedWindow.
765
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000766- Issue #4444: Allow assertRaises() to be used as a context handler, so that
767 the code under test can be written inline if more practical.
768
Georg Brandldb7b6b92009-01-01 15:53:14 +0000769- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
770 works as expected in the interactive environment.
771
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000772- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
773 Gabriel Genellina.
774
Antoine Pitrou180a3362008-12-14 16:36:46 +0000775- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
776 boundary.
777
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000778- Issue #4223: inspect.getsource() will now correctly display source code
779 for packages loaded via zipimport (or any other conformant PEP 302
780 loader). Original patch by Alexander Belopolsky.
781
782- Issue #4201: pdb can now access and display source code loaded via
783 zipimport (or any other conformant PEP 302 loader). Original patch by
784 Alexander Belopolsky.
785
786- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
787 302 conformant loader) will now work correctly in most cases (they
788 are still subject to the constraints that exist for all code running
789 from inside a module loaded via a PEP 302 loader and attempting to
790 perform IO operations based on __file__). Original patch by
791 Alexander Belopolsky.
792
793- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
794 allows backporting to maintenance branches. Original patch by
795 Alexander Belopolsky.
796
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000797- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
798 a non-ASCII letter.
799
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000800- Issue #4616: TarFile.utime(): Restore directory times on Windows.
801
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000802- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
803 codec cannot be found. This is for compatibility with the builtin behavior.
804
Facundo Batista708d5812008-12-11 04:20:07 +0000805- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
806 give correct results in the case where one argument is a quiet NaN
807 and the other is a finite number that requires rounding.
808
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000809- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
810 libs.
811
Georg Brandlf9734072008-12-07 15:30:06 +0000812- Added the subprocess.check_call_output() convenience function to get output
813 from a subprocess on success or raise an exception on error.
814
815- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
816 support unusual filenames (such as those containing semi-colons) in
817 Content-Disposition headers.
818
819- Issue #4384: Added logging integration with warnings module using
820 captureWarnings(). This change includes a NullHandler which does nothing;
821 it will be of use to library developers who want to avoid the "No handlers
822 could be found for logger XXX" message which can appear if the library user
823 doesn't configure logging.
824
825- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
826 exception.
827
Georg Brandleee31162008-12-07 15:15:22 +0000828- Issue #4529: fix the parser module's validation of try-except-finally
829 statements.
830
831- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
832 not a malformed option.
833
834- Added the subprocess.check_output() convenience function to get output
835 from a subprocess on success or raise an exception on error.
836
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000837- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
838 the corresponding tests now pass.
839
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000840- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
841 it was calling the wrong open() function.
842
Fred Drake9a0a65b2008-12-04 19:24:50 +0000843- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
844 support unusual filenames (such as those containing semi-colons) in
845 Content-Disposition headers.
846
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000847- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
848 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
849
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000850- Issue #5104: The socket module now raises OverflowError when 16-bit port and
851 protocol numbers are supplied outside the allowed 0-65536 range on bind()
852 and getservbyport().
853
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000854Tools/Demos
855-----------
856
Antoine Pitrou8a681222009-02-07 17:13:31 +0000857- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
858 and make it 2.6-compatible.
859
Guilherme Poloa7d27972009-01-28 16:06:51 +0000860- Ttk demos added in Demo/tkinter/ttk/
861
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000862- Issue #4677: add two list comprehension tests to pybench.
863
Georg Brandlb1441c72009-01-03 22:33:39 +0000864
865Build
866-----
867
Matthias Klose906785c2009-02-22 23:18:38 +0000868- Link the shared python library with $(MODLIBS).
869
Martin v. Löwis11f72102009-02-10 13:13:30 +0000870- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
871
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000872- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
873
Martin v. Löwise97637d2009-01-11 09:45:11 +0000874- Issue #4895: Use _strdup on Windows CE.
875
Georg Brandlb1441c72009-01-03 22:33:39 +0000876- Issue #4472: "configure --enable-shared" now works on OSX
877
878- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
879
880- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
881
882- Issue #4289: Remove Cancel button from AdvancedDlg.
883
884- Issue #1656675: Register a drop handler for .py* files on Windows.
885
886- Issue #4120: Exclude manifest from extension modules in VS2008.
887
888- Issue #4091: Install pythonxy.dll in system32 again.
889
890- Issue #4018: Disable "for me" installations on Vista.
891
892- Issue #3758: Add ``patchcheck`` build target to .PHONY.
893
894- Issue #4204: Fixed module build errors on FreeBSD 4.
895
896
897C-API
898-----
899
Mark Dickinson21776072009-02-10 16:13:25 +0000900- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
901 for negative arguments. Previously, it raised TypeError.
902
Georg Brandlb1441c72009-01-03 22:33:39 +0000903- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
904
905- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
906 the GIL is released, or owned by another thread.
907
908- Issue #4122: On Windows, fix a compilation error when using the
909 Py_UNICODE_ISSPACE macro in an extension module.
910
911
Mark Dickinsone675f082008-12-11 21:56:00 +0000912Extension Modules
913-----------------
914
Gregory P. Smith365a1862009-02-12 07:35:29 +0000915- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
916 supporting objects as input no matter how it was compiled (built in
917 implementations or external openssl library).
918
Mark Dickinson29500f62009-01-15 15:36:10 +0000919- Issue #4397: Fix occasional test_socket failure on OS X.
920
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000921- Issue #4279: Fix build of parsermodule under Cygwin.
922
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000923- Issue #4751: hashlib now releases the GIL when hashing large buffers
924 (with a hardwired threshold of 2048 bytes), allowing better parallelization
925 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
926
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000927- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
928
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000929- Issue #4738: Each zlib object now has a separate lock, allowing to compress
930 or decompress several streams at once on multi-CPU systems. Also, the GIL
931 is now released when computing the CRC of a large buffer. Patch by ebfe.
932
Georg Brandlb1441c72009-01-03 22:33:39 +0000933- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
934
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000935- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
936
Mark Dickinsone675f082008-12-11 21:56:00 +0000937- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
938 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000939
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000940- Issue #4583: array.array would not always prohibit resizing when a buffer
941 has been exported, resulting in an interpreter crash when accessing the
942 buffer.
943
Martin v. Löwis841edad2008-11-30 10:36:49 +0000944
Jack Diederiche0cbd692009-04-01 04:27:09 +0000945- Issue #5228: Make functools.partial objects can now be pickled.
946
Guilherme Polo9de29af2009-01-28 20:40:48 +0000947Tests
948-----
949
R. David Murraya21e4ca2009-03-31 23:16:50 +0000950- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000951 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000952 from test support, which does the conversion.
953
Guilherme Polo9de29af2009-01-28 20:40:48 +0000954- Issue #5083: New 'gui' resource for regrtest.
955
956
Brett Cannon7317c1e2008-11-25 19:19:17 +0000957Docs
958----
959
Georg Brandl52b92cc2008-05-25 09:43:03 +0000960
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000961**(For information about older versions, consult the HISTORY file.)**