blob: b9fc50abbd59522de26bc970618a19c756725684 [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
Benjamin Peterson193152c2009-04-25 01:08:45 +000015- Issue #5283: Setting __class__ in __del__ caused a segfault.
16
Mark Dickinsonad476da2009-04-23 19:14:16 +000017- Issue #5816: complex(repr(z)) now recovers z exactly, even when
18 z involves nans, infs or negative zeros.
19
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000020- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000021
Mark Dickinsone6a076d2009-04-18 11:48:33 +000022- Issue #1869 (and many duplicates): make round(x, n) correctly
23 rounded for a float x, by using the decimal <-> binary conversions
24 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
25 consistently agrees with format(x, '.2f').
26
Benjamin Petersonae937c02009-04-18 20:54:08 +000027- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
28 some builtin types.
29
Eric Smith0923d1d2009-04-16 20:16:10 +000030- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
31
Eric Smith35e84722009-04-16 20:21:28 +000032- Issue #5515: str.format() type 'n' combined with commas and leading
33 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000034
35- Implement PEP 378, Format Specifier for Thousands Separator, for
36 floats.
37
Mark Dickinson3370cce2009-04-17 22:40:53 +000038- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000039 1e11, not 1e12. This avoids printing 13 significant digits in
40 situations where only 12 of them are correct. Example problem
41 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
42 long time.)
43
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000044- Issue #1580: On most platforms, use a 'short' float repr: for a
45 finite float x, repr(x) now outputs a string based on the shortest
46 sequence of decimal digits that rounds to x. Previous behaviour was
47 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000048 Another minor difference is that the new repr switches to
49 exponential notation at 1e16 instead of the previous 1e17; this
50 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000051
52 There's a new sys attribute sys.float_repr_style, which takes
53 the value 'short' to indicate that we're using short float repr,
54 and 'legacy' if the short float repr isn't available for one
55 reason or another.
56
57 The float repr change involves incorporating David Gay's 'perfect
58 rounding' code into the Python core (it's in Python/dtoa.c). As a
59 secondary consequence, all string-to-float and float-to-string
60 conversions (including all float formatting operations) will be
61 correctly rounded on these platforms.
62
63 See issue 1580 discussions for details of platforms for which
64 this change does not apply.
65
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000066- Issue #5759: float() didn't call __float__ on str subclasses.
67
Georg Brandlabc38772009-04-12 15:51:51 +000068- The string.maketrans() function is deprecated; there is a new static method
69 maketrans() on the bytes and bytearray classes. This removes confusion about
70 the types string.maketrans() is supposed to work with, and mirrors the
71 methods available on the str class.
72
R. David Murraydc6da8a2009-04-09 22:16:43 +000073- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
74 its clarity and its speed.
75
Matthias Klose091c7b12009-04-07 13:24:27 +000076- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
77 to avoid compiler warnings.
78
Benjamin Petersonbd35b032009-04-04 23:16:41 +000079Library
80-------
81
Thomas Heller34596a92009-04-24 20:50:00 +000082- Issue #3102: All global symbols that the _ctypes extension defines
83 are now prefixed with 'Py' or '_ctypes'.
84
85- Issue #5041: ctypes does now allow pickling wide character.
86
Mark Dickinsond4d95f82009-04-24 14:06:19 +000087- Issue #5812: For the two-argument form of the Fraction constructor,
88 Fraction(m, n), m and n are permitted to be arbitrary Rational
89 instances.
90
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +000091- Issue #5812: Fraction('1e6') is valid: more generally, any string
92 that's valid for float() is now valid for Fraction(), with the
93 exception of strings representing NaNs and infinities.
94
Antoine Pitroucf4c7492009-04-19 00:09:36 +000095- Issue #5734: BufferedRWPair was poorly tested and had several glaring
96 bugs. Patch by Brian Quinlan.
97
R. David Murray9e94ddf2009-04-13 17:06:33 +000098- Issue #1161031: fix readwrite select flag handling: POLLPRI now
99 results in a handle_expt_event call, not handle_read_event, and POLLERR
100 and POLLNVAL now call handle_close, not handle_expt_event. Also,
101 dispatcher now has an 'ignore_log_types' attribute for suppressing
102 log messages, which is set to 'warning' by default.
103
Matthias Klosea3d29e82009-04-07 13:13:10 +0000104- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
105 new arguments introduced in 2.5.
106
Matthias Klose535336f2009-04-07 13:49:45 +0000107Extension Modules
108-----------------
109
Mark Dickinsonea835e72009-04-19 20:40:33 +0000110- Issue #5463: In struct module, remove deprecated float coercion
111 for integer type codes: struct.pack('L', 0.3) should now raise
112 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
113 The version number has been bumped to 0.3.
114
Matthias Klose535336f2009-04-07 13:49:45 +0000115- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
116 using Berkley-DB.
117
Nick Coghlan47384702009-04-22 16:13:36 +0000118Tests
119-----
120
121- Issue #5354: New test support function import_fresh_module() makes
122 it easy to import both normal and optimised versions of modules.
123 test_heapq and test_warnings have been adjusted to use it, tests for
124 other modules with both C and Python implementations in the stdlib
125 can be adjusted to use it over time.
126
Walter Dörwald4ba80132009-04-25 12:48:43 +0000127- Issue #5837: Certain sequences of calls to set() and unset() for
128 support.EnvironmentVarGuard objects restored the environment variables
129 incorrectly on __exit__.
130
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000131
Benjamin Petersond1735892009-03-07 18:46:21 +0000132What's New in Python 3.1 alpha 2?
133=================================
134
Benjamin Peterson88f14352009-04-04 21:06:52 +0000135*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000136
137Core and Builtins
138-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000139
Eric Smith1e1d7d22009-04-03 22:25:33 +0000140- Implement PEP 378, Format Specifier for Thousands Separator, for
141 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000142
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000143- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
144
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000145- Issue #5499: The 'c' code for argument parsing functions now only accepts a
146 byte, and the 'C' code only accepts a unicode character.
147
Georg Brandl406b3d82009-04-11 21:24:37 +0000148- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
149 when hitting the recursion limit under certain circumstances.
150
Brett Cannon0759dd62009-04-01 18:13:07 +0000151- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
152
Georg Brandlab6f2f62009-03-31 04:16:10 +0000153- Fix a segfault when running test_exceptions with coverage, caused by
154 insufficient checks in accessors of Exception.__context__.
155
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000156- Issue #5604: non-ASCII characters in module name passed to
157 imp.find_module() were converted to UTF-8 while the path is
158 converted to the default filesystem encoding, causing nonsense.
159
Benjamin Peterson09832742009-03-26 17:15:46 +0000160- Issue #5126: str.isprintable() returned False for space characters.
161
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000162- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
163 the end sys.path, for compatibility with the system install of Python.
164
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000165- Issue #4688: Add a heuristic so that tuples and dicts containing only
166 untrackable objects are not tracked by the garbage collector. This can
167 reduce the size of collections and therefore the garbage collection overhead
168 on long-running programs, depending on their particular use of datatypes.
169
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000170- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
171 improve its performance. Long divisions and remainder operations
172 are now between 50% and 150% faster.
173
Mark Dickinsonbd792642009-03-18 20:06:12 +0000174- Issue #4258: Make it possible to use base 2**30 instead of base
175 2**15 for the internal representation of integers, for performance
176 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
177 --enable-big-digits option to configure, which overrides the
178 default. Add sys.int_info structseq to provide information about
179 the internal format.
180
Mark Dickinson081dfee2009-03-18 14:47:41 +0000181- Issue #4474: PyUnicode_FromWideChar now converts characters outside
182 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
183 and sizeof(Py_UNICODE) == 2.
184
Eric Smith8ec90442009-03-14 12:29:34 +0000185- Issue #5237: Allow auto-numbered fields in str.format(). For
186 example: '{} {}'.format(1, 2) == '1 2'.
187
Antoine Pitrou652e7072009-03-13 19:25:20 +0000188- Issue #5392: when a very low recursion limit was set, the interpreter would
189 abort with a fatal error after the recursion limit was hit twice.
190
Matthias Klose042f1332009-04-04 14:32:42 +0000191- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
192 short file names.
193
Benjamin Petersond1735892009-03-07 18:46:21 +0000194Library
195-------
196
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000197- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000198 mailbox.MH.get_message().
199
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000200- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
201 error substitutions from non-strict codec error callbacks in
202 incrementalencoder and StreamWriter.
203
Georg Brandl33c28812009-04-01 23:07:29 +0000204- Issue #5656: Fix the coverage reporting when running the test suite with
205 the -T argument.
206
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000207- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
208
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000209- Issue #5624: Fix the _winreg module name still used in several modules.
210
Benjamin Petersona1b49012009-03-31 23:11:32 +0000211- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
212
Jesse Nollera9314042009-03-31 22:36:44 +0000213- Issue #5619: Multiprocessing children disobey the debug flag and causes
214 popups on windows buildbots. Patch applied to work around this issue.
215
Jesse Noller32d68c22009-03-31 18:48:42 +0000216- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
217
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000218- Issue #5387: Fixed mmap.move crash by integer overflow.
219
Jesse Nollerf8d00852009-03-31 03:25:07 +0000220- Issue #5261: Patch multiprocessing's semaphore.c to support context
221 manager use: "with multiprocessing.Lock()" works now.
222
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000223- Issue #5236: Change time.strptime() to only take strings. Didn't work with
224 bytes already but the failure was non-obvious.
225
Jesse Noller7af4ef82009-03-30 16:47:15 +0000226- Issue #5177: Multiprocessing's SocketListener class now uses
227 socket.SO_REUSEADDR on all connections so that the user no longer needs
228 to wait 120 seconds for the socket to expire.
229
Benjamin Peterson48e24782009-03-29 13:02:52 +0000230- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
231
Antoine Pitrou66994e12009-03-29 00:45:26 +0000232- Issue #1174606: Calling read() without arguments of an unbounded file
233 (typically /dev/zero under Unix) could crash the interpreter.
234
Benjamin Peterson59406a92009-03-26 17:10:29 +0000235- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
236 io.BufferedRandom have been deprecated for removal in Python 3.2.
237
Lars Gustäbel42e00912009-03-22 20:34:29 +0000238- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
239 forever on incomplete input. That caused tarfile.open() to hang when used
240 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
241 partial bzip2 compressed data.
242
Mark Dickinson79f52032009-03-17 23:12:51 +0000243- Issue #2110: Add support for thousands separator and 'n' type
244 specifier to Decimal.__format__
245
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000246- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
247 '>' alignment characters.
248
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000249- The error detection code in FileIO.close() could fail to reflect the `errno`
250 value, and report it as -1 instead.
251
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000252- Issue #5016: FileIO.seekable() could return False if the file position
253 was negative when truncated to a C int. Patch by Victor Stinner.
254
Mark Dickinsonae681df2009-03-21 10:26:31 +0000255Extension Modules
256-----------------
257
Benjamin Petersone099b372009-04-04 17:09:35 +0000258- Issue #5391: mmap now deals exclusively with bytes.
259
Mark Dickinsonae681df2009-03-21 10:26:31 +0000260- Issue #5463: In struct module, remove deprecated overflow wrapping
261 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000262 struct.error instead of returning b'\xff\xff\xff\xff'. The
263 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
264 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000265
Benjamin Petersond1735892009-03-07 18:46:21 +0000266
Benjamin Petersona58a6262009-03-07 16:34:40 +0000267What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000268================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000269
Benjamin Petersona58a6262009-03-07 16:34:40 +0000270*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000271
272Core and Builtins
273-----------------
274
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000275- The io module has been reimplemented in C for speed.
276
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000277- Give dict views an informative __repr__.
278
Eric Smith5e5c0db2009-02-20 14:25:03 +0000279- Issue #5247: Improve error message when unknown format codes are
280 used when using str.format() with str, int, and float arguments.
281
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000282- Issue #5249: time.strftime returned malformed string when format string
283 contained non ascii character on windows.
284
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000285- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
286 source has already been decoded into str.
287
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000288- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
289 rotating the object pointer by 4 bits to the right.
290
Mark Dickinson87ec0852009-02-09 17:15:59 +0000291- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
292 it now forces its argument to double before testing for infinity.
293
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000294- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
295 returns a non-number type.
296
Benjamin Peterson87618552009-02-08 15:00:52 +0000297- Issue #5182: Removed memoryview.__str__.
298
Mark Dickinsonc008a172009-02-01 13:59:22 +0000299- Issue #1717: Removed builtin cmp() function, dropped tp_compare
300 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000301 the type definition cmpfunc. The tp_compare slot has been renamed
302 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000303
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000304- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000305 were suppressing all exceptions. These include list() and bytearray().
306
Mark Dickinson1124e712009-01-28 21:25:58 +0000307- Issue #4707: round(x, n) now returns an integer if x is an integer.
308 Previously it returned a float.
309
Antoine Pitroub52ec782009-01-25 16:34:23 +0000310- Issue #4753: By enabling a configure option named '--with-computed-gotos'
311 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
312 evaluation loop is compiled with a new dispatch mechanism which gives
313 speedups of up to 20%, depending on the system, on various benchmarks.
314
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000315- Issue #4874: Most builtin decoders now reject unicode input.
316
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000317- Issue #4842: Don't allow trailing 'L' when constructing an integer
318 from a string.
319
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000320- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
321
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000322- Issue #4838: When a module is deallocated, free the memory backing the
323 optional module state data.
324
Mark Dickinson8055afd2009-01-17 10:04:45 +0000325- Issue #4910: Rename nb_long slot to nb_reserved, and change its
326 type to (void *).
327
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000328- Issue #4935: The overflow checking code in the expandtabs() method common
329 to str, bytes and bytearray could be optimized away by the compiler, letting
330 the interpreter segfault instead of raising an error.
331
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000332- Issue #3720: Fix a crash when an iterator modifies its class and removes its
333 __next__ method.
334
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000335- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
336 function no longer attempt to call the __long__ slot to convert an object
337 to an integer. Only the __int__ and __trunc__ slots are examined.
338
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000339- Issue #4893: Use NT threading on CE.
340
Martin v. Löwisec59d042009-01-12 07:59:10 +0000341- Issue #4915: Port sysmodule to Windows CE.
342
Antoine Pitrouab868312009-01-10 15:40:25 +0000343- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
344 common cases are optimized thanks to a dedicated fast path and a moderate
345 amount of loop unrolling.
346
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000347- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
348 collecting the oldest generation) so that allocating lots of objects without
349 destroying them does not show quadratic performance. Based on a proposal by
350 Martin von Löwis at
351 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
352
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000353- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000354 having been closed (for instance, a read() call could return some
355 previously buffered data). Patch by Dmitry Vasiliev.
356
Antoine Pitrou05608432009-01-09 18:53:14 +0000357- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
358 flag to work properly. Furthermore, when specifying -u, the text stdout
359 and stderr streams have line-by-line buffering enabled (the default being
360 to buffer arbitrary chunks of data).
361
Raymond Hettinger35631532009-01-09 03:58:09 +0000362- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
363 instead of ints (reducing its size from 4 to 8 times thereby reducing
364 Python's overall memory).
365
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000366- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
367 an existing .py counterpart, override the co_filename attributes of all
368 code objects if the original filename is obsolete (which can happen if the
369 file has been renamed, moved, or if it is accessed through different paths).
370 Patch by Ziga Seilnacht and Jean-Paul Calderone.
371
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000372- Issue #4580: Fix slicing of memoryviews when the item size is greater than
373 one byte. Also fixes the meaning of len() so that it returns the number of
374 items, rather than the size in bytes.
375
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000376- Issue #4075: Use OutputDebugStringW in Py_FatalError.
377
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000378- Issue #4747: When the terminal does not use utf-8, executing a script with
379 non-ascii characters in its name could fail with a "SyntaxError: None" error.
380
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000381- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000382 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000383
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000384- Issue #3680: Reference cycles created through a dict, set or deque iterator
385 did not get collected.
386
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000387- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
388 where the tp_hash and tp_dict slots are both NULL.
389
Georg Brandlccc47b62008-12-28 11:44:14 +0000390- Issue #4759: None is now allowed as the first argument of
391 bytearray.translate(). It was always allowed for bytes.translate().
392
Skip Montanaro80072cb2008-12-23 03:51:14 +0000393- Added test case to ensure attempts to read from a file opened for writing
394 fail.
395
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000396- Issue #3106: Speedup some comparisons (str/str and int/int).
397
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000398- Issue #2183: Simplify and optimize bytecode for list, dict and set
399 comprehensions. Original patch for list comprehensions by Neal Norwitz.
400
Antoine Pitrou621601a2008-12-17 23:18:19 +0000401- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
402 print elapsed times, not only when some objects are uncollectable /
403 unreachable. Original patch by Neil Schemenauer.
404
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000405- Issue #3439: Add a bit_length method to int.
406
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000407- Issue #2173: When getting device encoding, check that return value of
408 nl_langinfo is not the empty string. This was causing silent build
409 failures on OS X.
410
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000411- Issue #4597: Fixed several opcodes that weren't always propagating
412 exceptions.
413
414- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000415 context manager returns a value that cannot be converted to a bool.
416
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000417- Issue #4445: Replace "sizeof(PyBytesObject)" with
418 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
419 bytes instances. On a typical machine this saves 3 bytes of memory
420 (on average) per allocation of a bytes instance.
421
Christian Heimesa872de52008-12-05 08:26:55 +0000422- Issue #4533: File read operation was dreadfully slow due to a slowly
423 growing read buffer. Fixed by using the same growth rate algorithm as
424 Python 2.x.
425
Antoine Pitrou5504e892008-12-06 21:27:53 +0000426- Issue #4509: Various issues surrounding resize of bytearray objects to
427 which there are buffer exports (e.g. memoryview instances).
428
Georg Brandlf9734072008-12-07 15:30:06 +0000429- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
430 method on file objects with closefd=False. The file descriptor is still
431 kept open but the file object behaves like a closed file. The ``FileIO``
432 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000433
Antoine Pitroubc420402008-12-07 20:14:49 +0000434- Issue #4569: Interpreter crash when mutating a memoryview with an item size
435 larger than 1.
436
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000437- Issue #4748: Lambda generators no longer return a value.
438
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000439- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
440
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000441Library
442-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000443
Tarek Ziadé23336082009-04-25 12:39:56 +0000444- Issue #4951: Fixed failure in test_httpservers.
445
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000446- Issue #5795: Fixed test_distutils failure on Debian ppc.
447
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000448- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
449
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000450- Issue #5732: added a new command in Distutils: check.
451
Tarek Ziadéa6191802009-04-09 22:02:39 +0000452- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
453 platforms. Initial patch by Paul Moore.
454
Tarek Ziadéf6370502009-04-05 22:57:21 +0000455- Issue #5095: Added bdist_msi to the list of bdist supported formats.
456 Initial fix by Steven Bethard.
457
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000458- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
459 Initial fix by Wayne Davison.
460
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000461- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000462
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000463- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000464
Brett Cannonf47e84c2009-04-01 16:06:01 +0000465- Issue #1665206 (partially): Move imports in cgitb to the top of the module
466 instead of performing them in functions. Helps prevent import deadlocking in
467 threads.
468
R. David Murraye59482e2009-04-01 03:42:00 +0000469- Issue #2522: locale.format now checks its first argument to ensure it has
470 been passed only one pattern, avoiding mysterious errors where it appeared
471 that it was failing to do localization.
472
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000473- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
474 Brandl.
475
Antoine Pitrou350370c2009-03-14 00:13:13 +0000476- Issue #1222: locale.format() bug when the thousands separator is a space
477 character.
478
Tarek Ziadé516db942009-03-11 12:52:00 +0000479- Issue #5472: Fixed distutils.test_util tear down. Original patch by
480 Tim Golden.
481
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000482- collections.deque() objects now have a read-only attribute called maxlen.
483
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000484- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
485 it is has been populated and properly configured in order to prevent
486 window flashing.
487
Guilherme Polo56f5be52009-03-07 01:54:57 +0000488- Issue #4792: Prevent a segfault in _tkinter by using the
489 guaranteed to be safe interp argument given to the PythonCmd in place of
490 the Tcl interpreter taken from a PythonCmd_ClientData.
491
492- Issue #5193: Guarantee that tkinter.Text.search returns a string.
493
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000494- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
495 Original patch by Akira Kitada.
496
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000497- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
498
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000499- Issue #5385: Fixed mmap crash after resize failure on windows.
500
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000501- Issue #5179: Fixed subprocess handle leak on failure on windows.
502
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000503- PEP 372: Added collections.OrderedDict().
504
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000505- The _asdict() for method for namedtuples now returns an OrderedDict().
506
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000507- configparser now defaults to using an ordered dictionary.
508
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000509- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
510 import guess_extension`` was used.
511
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000512- Issue #1733986: Fixed mmap crash in accessing elements of second map object
513 with same tagname but larger size than first map. (Windows)
514
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000515- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
516 overrun.
517
Tarek Ziadéf0721222009-02-28 10:16:43 +0000518- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
519 bdist_rpm command.
520
521- Issue #5378: added --quiet option to Distutils bdist_rpm command.
522
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000523- Issue #5052: make Distutils compatible with 2.3 again.
524
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000525- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
526 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000527
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000528- Issue #5287: Add exception handling around findCaller() call to help out
529 IronPython.
530
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000531- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
532 The file was resized to wrong size.
533
534- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
535
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000536- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000537 from the package_data and the data_files metadata.
538
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000539- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000540 support.TempdirManager, to avoid writing in the tests directory.
541
Tarek Ziadé68c50952009-02-13 23:04:17 +0000542- Issue #4524: distutils build_script command failed with --with-suffix=3.
543 Initial patch by Amaury Forgeot d'Arc.
544
Tarek Ziadé811d6242009-02-13 22:26:15 +0000545- Issue #2461: added tests for distutils.util
546
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000547- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
548 which inherited from numbers.py which did not have __slots__ defined. The
549 numbers hierarchy now has its own __slots__ declarations.
550
Antoine Pitroub353c122009-02-11 00:39:14 +0000551- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
552 encoding.
553
Thomas Heller465c8022009-02-10 18:59:04 +0000554- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
555 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
556
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000557- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
558 under NT and OS2. Patch by Philip Jenvey.
559
Brett Cannonbefb14f2009-02-10 02:10:16 +0000560- Issue #5128: Make compileall properly inspect bytecode to determine if needs
561 to be recreated. This avoids a timing hole thanks to the old reliance on the
562 ctime of the files involved.
563
Guilherme Polob681df42009-02-09 22:33:59 +0000564- Issue #5122: Synchronize tk load failure check to prevent a potential
565 deadlock.
566
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000567- Issue #1818: collections.namedtuple() now supports a keyword argument
568 'rename' which lets invalid fieldnames be automatically converted to
569 positional names in the form, _1, _2, ...
570
Guilherme Poloae098992009-02-09 16:44:24 +0000571- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
572
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000573- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
574 public documented method ``ZipImporter.get_filename()``.
575
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000576- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
577 the execution of packages by looking for and executing a ``__main__``
578 submodule when a package name is supplied. Initial patch by Andi
579 Vajda.
580
Guilherme Polo491aee22009-02-06 23:16:11 +0000581- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
582 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
583 Tkapp_Call when calling from a thread different than the one that created
584 the Tcl interpreter. Patch by Robert Hancock.
585
Eric Smith0e5b5622009-02-06 01:32:42 +0000586- Issue #4285: Change sys.version_info to be a named tuple. Patch by
587 Ross Light.
588
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000589- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000590 environment/Makefile. Patch by Douglas Greiman.
591
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000592- Issue #1276768: The verbose option was not used in the code of
593 distutils.file_util and distutils.dir_util.
594
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000595- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000596 --enabled-shared activated. Initial patch by Dave Peterson.
597
Guilherme Polo7f423952009-02-02 21:17:09 +0000598- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
599
Raymond Hettinger85602262009-02-03 04:19:10 +0000600- The shelve module now defaults to pickle protocol 3.
601
Brett Cannone61426e2009-01-30 01:31:34 +0000602- Fix a bug in the trace module where a bytes object from co_lnotab had its
603 items being passed through ord().
604
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000605- Issue #2047: shutil.move() could believe that its destination path was
606 inside its source path if it began with the same letters (e.g. "src" vs.
607 "src.new").
608
Guilherme Polo5f238482009-01-28 14:41:10 +0000609- Added the ttk module. See issue #2983: Ttk support for Tkinter.
610
Raymond Hettinger89e12962009-01-26 02:09:03 +0000611- Removed isSequenceType(), isMappingType, and isNumberType() from the
612 operator module; use the abstract base classes instead. Also removed
613 the repeat() function; use mul() instead.
614
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000615- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000616 collections.namedtuple() relied on __name__ being defined.
617
618- Backport importlib from Python 3.1. Only the import_module() function has
619 been backported to help facilitate transitions from 2.7 to 3.1.
620
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000621- Issue #1885: distutils. When running sdist with --formats=tar,gztar
622 the tar file was overriden by the gztar one.
623
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000624- Issue #4863: distutils.mwerkscompiler has been removed.
625
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000626- Added a new itertools functions: combinations_with_replacement()
627 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000628
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000629- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000630 allowed non-integer arguments.
631
Jesse Noller41faa542009-01-25 03:45:53 +0000632- Fix and properly document the multiprocessing module's logging
633 support, expose the internal levels and provide proper usage
634 examples.
635
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000636- Issue #1672332: fix unpickling of subnormal floats, which was
637 producing a ValueError on some platforms.
638
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000639- Issue #3881: Help Tcl to load even when started through the
640 unreadable local symlink to "Program Files" on Vista.
641
Martin v. Löwis59e47792009-01-24 14:10:07 +0000642- Issue #4710: Extract directories properly in the zipfile module;
643 allow adding directories to a zipfile.
644
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000645- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000646 --without-threads argument. When this occurs, _multiprocessing will
647 be disabled, and not compiled.
648
Antoine Pitrou08838b62009-01-21 00:55:13 +0000649- Issue #5008: When a file is opened in append mode with the new IO library,
650 do an explicit seek to the end of file (so that e.g. tell() returns the
651 file size rather than 0). This is consistent with the behaviour of the
652 traditional 2.x file object.
653
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000654- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
655 parameter was set.
656
Mark Dickinson8dd05142009-01-20 20:43:58 +0000657- Issue #4842: Always append a trailing 'L' when pickling longs using
658 pickle protocol 0. When reading, the 'L' is optional.
659
Brett Cannonafccd632009-01-20 02:21:27 +0000660- Add the importlib package.
661
Jesse Noller9a0fc972009-01-18 21:12:58 +0000662- Issue #4301: Patch the logging module to add processName support, remove
663 _check_logger_class from multiprocessing.
664
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000665- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000666 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000667
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000668- Issue #4959: inspect.formatargspec now works for keyword only arguments
669 without defaults.
670
Jesse Noller6214edd2009-01-19 16:23:53 +0000671- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
672 for *nix machines for negative handles and large int handles. Without this check
673 it is possible to segfault the interpreter.
674
Jesse Nollerb0516a62009-01-18 03:11:38 +0000675- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
676 in sharedctypes.py.
677
678- Issue #1225107: inspect.isclass() returned True for instances with a custom
679 __getattr__.
680
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000681- Issue #3826 and #4791: The socket module now closes the underlying socket
682 appropriately when it is being used via socket.makefile() objects
683 rather than delaying the close by waiting for garbage collection to do it.
684
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000685- Issue #1696199: Add collections.Counter() for rapid and convenient
686 counting.
687
Antoine Pitrou308705e2009-01-10 16:22:51 +0000688- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
689
Thomas Heller5e4e4272009-01-08 09:34:20 +0000690- Issue #4867: Fixed a crash in ctypes when passing a string to a
691 function without defining argtypes.
692
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000693- Issue #4272: Add an optional argument to the GzipFile constructor to override
694 the timestamp in the gzip stream. The default value remains the current time.
695 The information can be used by e.g. gunzip when decompressing. Patch by
696 Jacques Frechet.
697
Mark Dickinson315a20a2009-01-04 21:34:18 +0000698- Restore Python 2.3 compatibility for decimal.py.
699
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000700- Issue #3638: Remove functions from _tkinter module level that depend on
701 TkappObject to work with multiple threads.
702
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000703- Issue #4718: Adapt the wsgiref package so that it actually works with
704 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000705 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
706
Raymond Hettinger771ed762009-01-03 19:20:32 +0000707- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
708 to the decimal module.
709
Georg Brandl3a9b0622009-01-03 22:07:57 +0000710- Fractions.from_float() no longer loses precision for integers too big to
711 cast as floats.
712
Mark Dickinsonf9236412009-01-02 23:23:21 +0000713- Issue #4812: add missing underscore prefix to some internal-use-only
714 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
715
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000716- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000717 did unnecessary work in the common case where no key function was specified.
718
Georg Brandlb1441c72009-01-03 22:33:39 +0000719- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
720 the function is not a generator.
721
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000722- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
723 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000724
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000725- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000726 function. Original patch by Thomas Heller.
727
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000728- Issue #3767: Convert Tk object to string in tkColorChooser.
729
Martin v. Löwise354d782008-12-29 16:03:04 +0000730- Issue #3248: Allow placing ScrolledText in a PanedWindow.
731
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000732- Issue #4444: Allow assertRaises() to be used as a context handler, so that
733 the code under test can be written inline if more practical.
734
Georg Brandldb7b6b92009-01-01 15:53:14 +0000735- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
736 works as expected in the interactive environment.
737
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000738- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
739 Gabriel Genellina.
740
Antoine Pitrou180a3362008-12-14 16:36:46 +0000741- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
742 boundary.
743
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000744- Issue #4223: inspect.getsource() will now correctly display source code
745 for packages loaded via zipimport (or any other conformant PEP 302
746 loader). Original patch by Alexander Belopolsky.
747
748- Issue #4201: pdb can now access and display source code loaded via
749 zipimport (or any other conformant PEP 302 loader). Original patch by
750 Alexander Belopolsky.
751
752- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
753 302 conformant loader) will now work correctly in most cases (they
754 are still subject to the constraints that exist for all code running
755 from inside a module loaded via a PEP 302 loader and attempting to
756 perform IO operations based on __file__). Original patch by
757 Alexander Belopolsky.
758
759- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
760 allows backporting to maintenance branches. Original patch by
761 Alexander Belopolsky.
762
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000763- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
764 a non-ASCII letter.
765
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000766- Issue #4616: TarFile.utime(): Restore directory times on Windows.
767
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000768- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
769 codec cannot be found. This is for compatibility with the builtin behavior.
770
Facundo Batista708d5812008-12-11 04:20:07 +0000771- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
772 give correct results in the case where one argument is a quiet NaN
773 and the other is a finite number that requires rounding.
774
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000775- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
776 libs.
777
Georg Brandlf9734072008-12-07 15:30:06 +0000778- Added the subprocess.check_call_output() convenience function to get output
779 from a subprocess on success or raise an exception on error.
780
781- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
782 support unusual filenames (such as those containing semi-colons) in
783 Content-Disposition headers.
784
785- Issue #4384: Added logging integration with warnings module using
786 captureWarnings(). This change includes a NullHandler which does nothing;
787 it will be of use to library developers who want to avoid the "No handlers
788 could be found for logger XXX" message which can appear if the library user
789 doesn't configure logging.
790
791- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
792 exception.
793
Georg Brandleee31162008-12-07 15:15:22 +0000794- Issue #4529: fix the parser module's validation of try-except-finally
795 statements.
796
797- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
798 not a malformed option.
799
800- Added the subprocess.check_output() convenience function to get output
801 from a subprocess on success or raise an exception on error.
802
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000803- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
804 the corresponding tests now pass.
805
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000806- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
807 it was calling the wrong open() function.
808
Fred Drake9a0a65b2008-12-04 19:24:50 +0000809- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
810 support unusual filenames (such as those containing semi-colons) in
811 Content-Disposition headers.
812
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000813- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
814 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
815
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000816- Issue #5104: The socket module now raises OverflowError when 16-bit port and
817 protocol numbers are supplied outside the allowed 0-65536 range on bind()
818 and getservbyport().
819
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000820Tools/Demos
821-----------
822
Antoine Pitrou8a681222009-02-07 17:13:31 +0000823- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
824 and make it 2.6-compatible.
825
Guilherme Poloa7d27972009-01-28 16:06:51 +0000826- Ttk demos added in Demo/tkinter/ttk/
827
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000828- Issue #4677: add two list comprehension tests to pybench.
829
Georg Brandlb1441c72009-01-03 22:33:39 +0000830
831Build
832-----
833
Matthias Klose906785c2009-02-22 23:18:38 +0000834- Link the shared python library with $(MODLIBS).
835
Martin v. Löwis11f72102009-02-10 13:13:30 +0000836- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
837
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000838- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
839
Martin v. Löwise97637d2009-01-11 09:45:11 +0000840- Issue #4895: Use _strdup on Windows CE.
841
Georg Brandlb1441c72009-01-03 22:33:39 +0000842- Issue #4472: "configure --enable-shared" now works on OSX
843
844- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
845
846- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
847
848- Issue #4289: Remove Cancel button from AdvancedDlg.
849
850- Issue #1656675: Register a drop handler for .py* files on Windows.
851
852- Issue #4120: Exclude manifest from extension modules in VS2008.
853
854- Issue #4091: Install pythonxy.dll in system32 again.
855
856- Issue #4018: Disable "for me" installations on Vista.
857
858- Issue #3758: Add ``patchcheck`` build target to .PHONY.
859
860- Issue #4204: Fixed module build errors on FreeBSD 4.
861
862
863C-API
864-----
865
Mark Dickinson21776072009-02-10 16:13:25 +0000866- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
867 for negative arguments. Previously, it raised TypeError.
868
Georg Brandlb1441c72009-01-03 22:33:39 +0000869- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
870
871- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
872 the GIL is released, or owned by another thread.
873
874- Issue #4122: On Windows, fix a compilation error when using the
875 Py_UNICODE_ISSPACE macro in an extension module.
876
877
Mark Dickinsone675f082008-12-11 21:56:00 +0000878Extension Modules
879-----------------
880
Gregory P. Smith365a1862009-02-12 07:35:29 +0000881- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
882 supporting objects as input no matter how it was compiled (built in
883 implementations or external openssl library).
884
Mark Dickinson29500f62009-01-15 15:36:10 +0000885- Issue #4397: Fix occasional test_socket failure on OS X.
886
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000887- Issue #4279: Fix build of parsermodule under Cygwin.
888
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000889- Issue #4751: hashlib now releases the GIL when hashing large buffers
890 (with a hardwired threshold of 2048 bytes), allowing better parallelization
891 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
892
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000893- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
894
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000895- Issue #4738: Each zlib object now has a separate lock, allowing to compress
896 or decompress several streams at once on multi-CPU systems. Also, the GIL
897 is now released when computing the CRC of a large buffer. Patch by ebfe.
898
Georg Brandlb1441c72009-01-03 22:33:39 +0000899- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
900
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000901- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
902
Mark Dickinsone675f082008-12-11 21:56:00 +0000903- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
904 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000905
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000906- Issue #4583: array.array would not always prohibit resizing when a buffer
907 has been exported, resulting in an interpreter crash when accessing the
908 buffer.
909
Martin v. Löwis841edad2008-11-30 10:36:49 +0000910
Jack Diederiche0cbd692009-04-01 04:27:09 +0000911- Issue #5228: Make functools.partial objects can now be pickled.
912
Guilherme Polo9de29af2009-01-28 20:40:48 +0000913Tests
914-----
915
R. David Murraya21e4ca2009-03-31 23:16:50 +0000916- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
917 that should cause a test to be skipped are now done using import_module
918 from test support, which does the conversion.
919
Guilherme Polo9de29af2009-01-28 20:40:48 +0000920- Issue #5083: New 'gui' resource for regrtest.
921
922
Brett Cannon7317c1e2008-11-25 19:19:17 +0000923Docs
924----
925
Georg Brandl52b92cc2008-05-25 09:43:03 +0000926
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000927**(For information about older versions, consult the HISTORY file.)**