blob: e647965cfdd2bc69d5040e7d2fed18f16de3f0f4 [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
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000127
Benjamin Petersond1735892009-03-07 18:46:21 +0000128What's New in Python 3.1 alpha 2?
129=================================
130
Benjamin Peterson88f14352009-04-04 21:06:52 +0000131*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000132
133Core and Builtins
134-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000135
Eric Smith1e1d7d22009-04-03 22:25:33 +0000136- Implement PEP 378, Format Specifier for Thousands Separator, for
137 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000138
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000139- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
140
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000141- Issue #5499: The 'c' code for argument parsing functions now only accepts a
142 byte, and the 'C' code only accepts a unicode character.
143
Georg Brandl406b3d82009-04-11 21:24:37 +0000144- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
145 when hitting the recursion limit under certain circumstances.
146
Brett Cannon0759dd62009-04-01 18:13:07 +0000147- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
148
Georg Brandlab6f2f62009-03-31 04:16:10 +0000149- Fix a segfault when running test_exceptions with coverage, caused by
150 insufficient checks in accessors of Exception.__context__.
151
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000152- Issue #5604: non-ASCII characters in module name passed to
153 imp.find_module() were converted to UTF-8 while the path is
154 converted to the default filesystem encoding, causing nonsense.
155
Benjamin Peterson09832742009-03-26 17:15:46 +0000156- Issue #5126: str.isprintable() returned False for space characters.
157
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000158- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
159 the end sys.path, for compatibility with the system install of Python.
160
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000161- Issue #4688: Add a heuristic so that tuples and dicts containing only
162 untrackable objects are not tracked by the garbage collector. This can
163 reduce the size of collections and therefore the garbage collection overhead
164 on long-running programs, depending on their particular use of datatypes.
165
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000166- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
167 improve its performance. Long divisions and remainder operations
168 are now between 50% and 150% faster.
169
Mark Dickinsonbd792642009-03-18 20:06:12 +0000170- Issue #4258: Make it possible to use base 2**30 instead of base
171 2**15 for the internal representation of integers, for performance
172 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
173 --enable-big-digits option to configure, which overrides the
174 default. Add sys.int_info structseq to provide information about
175 the internal format.
176
Mark Dickinson081dfee2009-03-18 14:47:41 +0000177- Issue #4474: PyUnicode_FromWideChar now converts characters outside
178 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
179 and sizeof(Py_UNICODE) == 2.
180
Eric Smith8ec90442009-03-14 12:29:34 +0000181- Issue #5237: Allow auto-numbered fields in str.format(). For
182 example: '{} {}'.format(1, 2) == '1 2'.
183
Antoine Pitrou652e7072009-03-13 19:25:20 +0000184- Issue #5392: when a very low recursion limit was set, the interpreter would
185 abort with a fatal error after the recursion limit was hit twice.
186
Matthias Klose042f1332009-04-04 14:32:42 +0000187- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
188 short file names.
189
Benjamin Petersond1735892009-03-07 18:46:21 +0000190Library
191-------
192
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000193- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000194 mailbox.MH.get_message().
195
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000196- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
197 error substitutions from non-strict codec error callbacks in
198 incrementalencoder and StreamWriter.
199
Georg Brandl33c28812009-04-01 23:07:29 +0000200- Issue #5656: Fix the coverage reporting when running the test suite with
201 the -T argument.
202
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000203- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
204
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000205- Issue #5624: Fix the _winreg module name still used in several modules.
206
Benjamin Petersona1b49012009-03-31 23:11:32 +0000207- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
208
Jesse Nollera9314042009-03-31 22:36:44 +0000209- Issue #5619: Multiprocessing children disobey the debug flag and causes
210 popups on windows buildbots. Patch applied to work around this issue.
211
Jesse Noller32d68c22009-03-31 18:48:42 +0000212- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
213
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000214- Issue #5387: Fixed mmap.move crash by integer overflow.
215
Jesse Nollerf8d00852009-03-31 03:25:07 +0000216- Issue #5261: Patch multiprocessing's semaphore.c to support context
217 manager use: "with multiprocessing.Lock()" works now.
218
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000219- Issue #5236: Change time.strptime() to only take strings. Didn't work with
220 bytes already but the failure was non-obvious.
221
Jesse Noller7af4ef82009-03-30 16:47:15 +0000222- Issue #5177: Multiprocessing's SocketListener class now uses
223 socket.SO_REUSEADDR on all connections so that the user no longer needs
224 to wait 120 seconds for the socket to expire.
225
Benjamin Peterson48e24782009-03-29 13:02:52 +0000226- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
227
Antoine Pitrou66994e12009-03-29 00:45:26 +0000228- Issue #1174606: Calling read() without arguments of an unbounded file
229 (typically /dev/zero under Unix) could crash the interpreter.
230
Benjamin Peterson59406a92009-03-26 17:10:29 +0000231- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
232 io.BufferedRandom have been deprecated for removal in Python 3.2.
233
Lars Gustäbel42e00912009-03-22 20:34:29 +0000234- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
235 forever on incomplete input. That caused tarfile.open() to hang when used
236 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
237 partial bzip2 compressed data.
238
Mark Dickinson79f52032009-03-17 23:12:51 +0000239- Issue #2110: Add support for thousands separator and 'n' type
240 specifier to Decimal.__format__
241
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000242- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
243 '>' alignment characters.
244
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000245- The error detection code in FileIO.close() could fail to reflect the `errno`
246 value, and report it as -1 instead.
247
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000248- Issue #5016: FileIO.seekable() could return False if the file position
249 was negative when truncated to a C int. Patch by Victor Stinner.
250
Mark Dickinsonae681df2009-03-21 10:26:31 +0000251Extension Modules
252-----------------
253
Benjamin Petersone099b372009-04-04 17:09:35 +0000254- Issue #5391: mmap now deals exclusively with bytes.
255
Mark Dickinsonae681df2009-03-21 10:26:31 +0000256- Issue #5463: In struct module, remove deprecated overflow wrapping
257 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000258 struct.error instead of returning b'\xff\xff\xff\xff'. The
259 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
260 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000261
Benjamin Petersond1735892009-03-07 18:46:21 +0000262
Benjamin Petersona58a6262009-03-07 16:34:40 +0000263What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000264================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000265
Benjamin Petersona58a6262009-03-07 16:34:40 +0000266*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000267
268Core and Builtins
269-----------------
270
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000271- The io module has been reimplemented in C for speed.
272
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000273- Give dict views an informative __repr__.
274
Eric Smith5e5c0db2009-02-20 14:25:03 +0000275- Issue #5247: Improve error message when unknown format codes are
276 used when using str.format() with str, int, and float arguments.
277
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000278- Issue #5249: time.strftime returned malformed string when format string
279 contained non ascii character on windows.
280
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000281- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
282 source has already been decoded into str.
283
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000284- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
285 rotating the object pointer by 4 bits to the right.
286
Mark Dickinson87ec0852009-02-09 17:15:59 +0000287- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
288 it now forces its argument to double before testing for infinity.
289
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000290- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
291 returns a non-number type.
292
Benjamin Peterson87618552009-02-08 15:00:52 +0000293- Issue #5182: Removed memoryview.__str__.
294
Mark Dickinsonc008a172009-02-01 13:59:22 +0000295- Issue #1717: Removed builtin cmp() function, dropped tp_compare
296 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000297 the type definition cmpfunc. The tp_compare slot has been renamed
298 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000299
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000300- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000301 were suppressing all exceptions. These include list() and bytearray().
302
Mark Dickinson1124e712009-01-28 21:25:58 +0000303- Issue #4707: round(x, n) now returns an integer if x is an integer.
304 Previously it returned a float.
305
Antoine Pitroub52ec782009-01-25 16:34:23 +0000306- Issue #4753: By enabling a configure option named '--with-computed-gotos'
307 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
308 evaluation loop is compiled with a new dispatch mechanism which gives
309 speedups of up to 20%, depending on the system, on various benchmarks.
310
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000311- Issue #4874: Most builtin decoders now reject unicode input.
312
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000313- Issue #4842: Don't allow trailing 'L' when constructing an integer
314 from a string.
315
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000316- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
317
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000318- Issue #4838: When a module is deallocated, free the memory backing the
319 optional module state data.
320
Mark Dickinson8055afd2009-01-17 10:04:45 +0000321- Issue #4910: Rename nb_long slot to nb_reserved, and change its
322 type to (void *).
323
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000324- Issue #4935: The overflow checking code in the expandtabs() method common
325 to str, bytes and bytearray could be optimized away by the compiler, letting
326 the interpreter segfault instead of raising an error.
327
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000328- Issue #3720: Fix a crash when an iterator modifies its class and removes its
329 __next__ method.
330
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000331- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
332 function no longer attempt to call the __long__ slot to convert an object
333 to an integer. Only the __int__ and __trunc__ slots are examined.
334
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000335- Issue #4893: Use NT threading on CE.
336
Martin v. Löwisec59d042009-01-12 07:59:10 +0000337- Issue #4915: Port sysmodule to Windows CE.
338
Antoine Pitrouab868312009-01-10 15:40:25 +0000339- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
340 common cases are optimized thanks to a dedicated fast path and a moderate
341 amount of loop unrolling.
342
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000343- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
344 collecting the oldest generation) so that allocating lots of objects without
345 destroying them does not show quadratic performance. Based on a proposal by
346 Martin von Löwis at
347 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
348
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000349- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000350 having been closed (for instance, a read() call could return some
351 previously buffered data). Patch by Dmitry Vasiliev.
352
Antoine Pitrou05608432009-01-09 18:53:14 +0000353- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
354 flag to work properly. Furthermore, when specifying -u, the text stdout
355 and stderr streams have line-by-line buffering enabled (the default being
356 to buffer arbitrary chunks of data).
357
Raymond Hettinger35631532009-01-09 03:58:09 +0000358- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
359 instead of ints (reducing its size from 4 to 8 times thereby reducing
360 Python's overall memory).
361
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000362- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
363 an existing .py counterpart, override the co_filename attributes of all
364 code objects if the original filename is obsolete (which can happen if the
365 file has been renamed, moved, or if it is accessed through different paths).
366 Patch by Ziga Seilnacht and Jean-Paul Calderone.
367
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000368- Issue #4580: Fix slicing of memoryviews when the item size is greater than
369 one byte. Also fixes the meaning of len() so that it returns the number of
370 items, rather than the size in bytes.
371
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000372- Issue #4075: Use OutputDebugStringW in Py_FatalError.
373
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000374- Issue #4747: When the terminal does not use utf-8, executing a script with
375 non-ascii characters in its name could fail with a "SyntaxError: None" error.
376
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000377- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000378 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000379
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000380- Issue #3680: Reference cycles created through a dict, set or deque iterator
381 did not get collected.
382
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000383- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
384 where the tp_hash and tp_dict slots are both NULL.
385
Georg Brandlccc47b62008-12-28 11:44:14 +0000386- Issue #4759: None is now allowed as the first argument of
387 bytearray.translate(). It was always allowed for bytes.translate().
388
Skip Montanaro80072cb2008-12-23 03:51:14 +0000389- Added test case to ensure attempts to read from a file opened for writing
390 fail.
391
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000392- Issue #3106: Speedup some comparisons (str/str and int/int).
393
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000394- Issue #2183: Simplify and optimize bytecode for list, dict and set
395 comprehensions. Original patch for list comprehensions by Neal Norwitz.
396
Antoine Pitrou621601a2008-12-17 23:18:19 +0000397- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
398 print elapsed times, not only when some objects are uncollectable /
399 unreachable. Original patch by Neil Schemenauer.
400
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000401- Issue #3439: Add a bit_length method to int.
402
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000403- Issue #2173: When getting device encoding, check that return value of
404 nl_langinfo is not the empty string. This was causing silent build
405 failures on OS X.
406
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000407- Issue #4597: Fixed several opcodes that weren't always propagating
408 exceptions.
409
410- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000411 context manager returns a value that cannot be converted to a bool.
412
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000413- Issue #4445: Replace "sizeof(PyBytesObject)" with
414 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
415 bytes instances. On a typical machine this saves 3 bytes of memory
416 (on average) per allocation of a bytes instance.
417
Christian Heimesa872de52008-12-05 08:26:55 +0000418- Issue #4533: File read operation was dreadfully slow due to a slowly
419 growing read buffer. Fixed by using the same growth rate algorithm as
420 Python 2.x.
421
Antoine Pitrou5504e892008-12-06 21:27:53 +0000422- Issue #4509: Various issues surrounding resize of bytearray objects to
423 which there are buffer exports (e.g. memoryview instances).
424
Georg Brandlf9734072008-12-07 15:30:06 +0000425- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
426 method on file objects with closefd=False. The file descriptor is still
427 kept open but the file object behaves like a closed file. The ``FileIO``
428 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000429
Antoine Pitroubc420402008-12-07 20:14:49 +0000430- Issue #4569: Interpreter crash when mutating a memoryview with an item size
431 larger than 1.
432
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000433- Issue #4748: Lambda generators no longer return a value.
434
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000435- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
436
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000437Library
438-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000439
Tarek Ziadé23336082009-04-25 12:39:56 +0000440- Issue #4951: Fixed failure in test_httpservers.
441
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000442- Issue #5795: Fixed test_distutils failure on Debian ppc.
443
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000444- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
445
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000446- Issue #5732: added a new command in Distutils: check.
447
Tarek Ziadéa6191802009-04-09 22:02:39 +0000448- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
449 platforms. Initial patch by Paul Moore.
450
Tarek Ziadéf6370502009-04-05 22:57:21 +0000451- Issue #5095: Added bdist_msi to the list of bdist supported formats.
452 Initial fix by Steven Bethard.
453
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000454- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
455 Initial fix by Wayne Davison.
456
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000457- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000458
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000459- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000460
Brett Cannonf47e84c2009-04-01 16:06:01 +0000461- Issue #1665206 (partially): Move imports in cgitb to the top of the module
462 instead of performing them in functions. Helps prevent import deadlocking in
463 threads.
464
R. David Murraye59482e2009-04-01 03:42:00 +0000465- Issue #2522: locale.format now checks its first argument to ensure it has
466 been passed only one pattern, avoiding mysterious errors where it appeared
467 that it was failing to do localization.
468
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000469- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
470 Brandl.
471
Antoine Pitrou350370c2009-03-14 00:13:13 +0000472- Issue #1222: locale.format() bug when the thousands separator is a space
473 character.
474
Tarek Ziadé516db942009-03-11 12:52:00 +0000475- Issue #5472: Fixed distutils.test_util tear down. Original patch by
476 Tim Golden.
477
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000478- collections.deque() objects now have a read-only attribute called maxlen.
479
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000480- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
481 it is has been populated and properly configured in order to prevent
482 window flashing.
483
Guilherme Polo56f5be52009-03-07 01:54:57 +0000484- Issue #4792: Prevent a segfault in _tkinter by using the
485 guaranteed to be safe interp argument given to the PythonCmd in place of
486 the Tcl interpreter taken from a PythonCmd_ClientData.
487
488- Issue #5193: Guarantee that tkinter.Text.search returns a string.
489
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000490- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
491 Original patch by Akira Kitada.
492
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000493- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
494
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000495- Issue #5385: Fixed mmap crash after resize failure on windows.
496
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000497- Issue #5179: Fixed subprocess handle leak on failure on windows.
498
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000499- PEP 372: Added collections.OrderedDict().
500
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000501- The _asdict() for method for namedtuples now returns an OrderedDict().
502
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000503- configparser now defaults to using an ordered dictionary.
504
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000505- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
506 import guess_extension`` was used.
507
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000508- Issue #1733986: Fixed mmap crash in accessing elements of second map object
509 with same tagname but larger size than first map. (Windows)
510
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000511- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
512 overrun.
513
Tarek Ziadéf0721222009-02-28 10:16:43 +0000514- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
515 bdist_rpm command.
516
517- Issue #5378: added --quiet option to Distutils bdist_rpm command.
518
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000519- Issue #5052: make Distutils compatible with 2.3 again.
520
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000521- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
522 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000523
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000524- Issue #5287: Add exception handling around findCaller() call to help out
525 IronPython.
526
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000527- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
528 The file was resized to wrong size.
529
530- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
531
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000532- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000533 from the package_data and the data_files metadata.
534
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000535- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000536 support.TempdirManager, to avoid writing in the tests directory.
537
Tarek Ziadé68c50952009-02-13 23:04:17 +0000538- Issue #4524: distutils build_script command failed with --with-suffix=3.
539 Initial patch by Amaury Forgeot d'Arc.
540
Tarek Ziadé811d6242009-02-13 22:26:15 +0000541- Issue #2461: added tests for distutils.util
542
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000543- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
544 which inherited from numbers.py which did not have __slots__ defined. The
545 numbers hierarchy now has its own __slots__ declarations.
546
Antoine Pitroub353c122009-02-11 00:39:14 +0000547- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
548 encoding.
549
Thomas Heller465c8022009-02-10 18:59:04 +0000550- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
551 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
552
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000553- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
554 under NT and OS2. Patch by Philip Jenvey.
555
Brett Cannonbefb14f2009-02-10 02:10:16 +0000556- Issue #5128: Make compileall properly inspect bytecode to determine if needs
557 to be recreated. This avoids a timing hole thanks to the old reliance on the
558 ctime of the files involved.
559
Guilherme Polob681df42009-02-09 22:33:59 +0000560- Issue #5122: Synchronize tk load failure check to prevent a potential
561 deadlock.
562
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000563- Issue #1818: collections.namedtuple() now supports a keyword argument
564 'rename' which lets invalid fieldnames be automatically converted to
565 positional names in the form, _1, _2, ...
566
Guilherme Poloae098992009-02-09 16:44:24 +0000567- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
568
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000569- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
570 public documented method ``ZipImporter.get_filename()``.
571
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000572- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
573 the execution of packages by looking for and executing a ``__main__``
574 submodule when a package name is supplied. Initial patch by Andi
575 Vajda.
576
Guilherme Polo491aee22009-02-06 23:16:11 +0000577- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
578 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
579 Tkapp_Call when calling from a thread different than the one that created
580 the Tcl interpreter. Patch by Robert Hancock.
581
Eric Smith0e5b5622009-02-06 01:32:42 +0000582- Issue #4285: Change sys.version_info to be a named tuple. Patch by
583 Ross Light.
584
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000585- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000586 environment/Makefile. Patch by Douglas Greiman.
587
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000588- Issue #1276768: The verbose option was not used in the code of
589 distutils.file_util and distutils.dir_util.
590
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000591- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000592 --enabled-shared activated. Initial patch by Dave Peterson.
593
Guilherme Polo7f423952009-02-02 21:17:09 +0000594- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
595
Raymond Hettinger85602262009-02-03 04:19:10 +0000596- The shelve module now defaults to pickle protocol 3.
597
Brett Cannone61426e2009-01-30 01:31:34 +0000598- Fix a bug in the trace module where a bytes object from co_lnotab had its
599 items being passed through ord().
600
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000601- Issue #2047: shutil.move() could believe that its destination path was
602 inside its source path if it began with the same letters (e.g. "src" vs.
603 "src.new").
604
Guilherme Polo5f238482009-01-28 14:41:10 +0000605- Added the ttk module. See issue #2983: Ttk support for Tkinter.
606
Raymond Hettinger89e12962009-01-26 02:09:03 +0000607- Removed isSequenceType(), isMappingType, and isNumberType() from the
608 operator module; use the abstract base classes instead. Also removed
609 the repeat() function; use mul() instead.
610
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000611- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000612 collections.namedtuple() relied on __name__ being defined.
613
614- Backport importlib from Python 3.1. Only the import_module() function has
615 been backported to help facilitate transitions from 2.7 to 3.1.
616
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000617- Issue #1885: distutils. When running sdist with --formats=tar,gztar
618 the tar file was overriden by the gztar one.
619
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000620- Issue #4863: distutils.mwerkscompiler has been removed.
621
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000622- Added a new itertools functions: combinations_with_replacement()
623 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000624
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000625- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000626 allowed non-integer arguments.
627
Jesse Noller41faa542009-01-25 03:45:53 +0000628- Fix and properly document the multiprocessing module's logging
629 support, expose the internal levels and provide proper usage
630 examples.
631
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000632- Issue #1672332: fix unpickling of subnormal floats, which was
633 producing a ValueError on some platforms.
634
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000635- Issue #3881: Help Tcl to load even when started through the
636 unreadable local symlink to "Program Files" on Vista.
637
Martin v. Löwis59e47792009-01-24 14:10:07 +0000638- Issue #4710: Extract directories properly in the zipfile module;
639 allow adding directories to a zipfile.
640
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000641- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000642 --without-threads argument. When this occurs, _multiprocessing will
643 be disabled, and not compiled.
644
Antoine Pitrou08838b62009-01-21 00:55:13 +0000645- Issue #5008: When a file is opened in append mode with the new IO library,
646 do an explicit seek to the end of file (so that e.g. tell() returns the
647 file size rather than 0). This is consistent with the behaviour of the
648 traditional 2.x file object.
649
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000650- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
651 parameter was set.
652
Mark Dickinson8dd05142009-01-20 20:43:58 +0000653- Issue #4842: Always append a trailing 'L' when pickling longs using
654 pickle protocol 0. When reading, the 'L' is optional.
655
Brett Cannonafccd632009-01-20 02:21:27 +0000656- Add the importlib package.
657
Jesse Noller9a0fc972009-01-18 21:12:58 +0000658- Issue #4301: Patch the logging module to add processName support, remove
659 _check_logger_class from multiprocessing.
660
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000661- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000662 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000663
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000664- Issue #4959: inspect.formatargspec now works for keyword only arguments
665 without defaults.
666
Jesse Noller6214edd2009-01-19 16:23:53 +0000667- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
668 for *nix machines for negative handles and large int handles. Without this check
669 it is possible to segfault the interpreter.
670
Jesse Nollerb0516a62009-01-18 03:11:38 +0000671- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
672 in sharedctypes.py.
673
674- Issue #1225107: inspect.isclass() returned True for instances with a custom
675 __getattr__.
676
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000677- Issue #3826 and #4791: The socket module now closes the underlying socket
678 appropriately when it is being used via socket.makefile() objects
679 rather than delaying the close by waiting for garbage collection to do it.
680
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000681- Issue #1696199: Add collections.Counter() for rapid and convenient
682 counting.
683
Antoine Pitrou308705e2009-01-10 16:22:51 +0000684- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
685
Thomas Heller5e4e4272009-01-08 09:34:20 +0000686- Issue #4867: Fixed a crash in ctypes when passing a string to a
687 function without defining argtypes.
688
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000689- Issue #4272: Add an optional argument to the GzipFile constructor to override
690 the timestamp in the gzip stream. The default value remains the current time.
691 The information can be used by e.g. gunzip when decompressing. Patch by
692 Jacques Frechet.
693
Mark Dickinson315a20a2009-01-04 21:34:18 +0000694- Restore Python 2.3 compatibility for decimal.py.
695
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000696- Issue #3638: Remove functions from _tkinter module level that depend on
697 TkappObject to work with multiple threads.
698
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000699- Issue #4718: Adapt the wsgiref package so that it actually works with
700 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000701 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
702
Raymond Hettinger771ed762009-01-03 19:20:32 +0000703- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
704 to the decimal module.
705
Georg Brandl3a9b0622009-01-03 22:07:57 +0000706- Fractions.from_float() no longer loses precision for integers too big to
707 cast as floats.
708
Mark Dickinsonf9236412009-01-02 23:23:21 +0000709- Issue #4812: add missing underscore prefix to some internal-use-only
710 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
711
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000712- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000713 did unnecessary work in the common case where no key function was specified.
714
Georg Brandlb1441c72009-01-03 22:33:39 +0000715- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
716 the function is not a generator.
717
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000718- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
719 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000720
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000721- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000722 function. Original patch by Thomas Heller.
723
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000724- Issue #3767: Convert Tk object to string in tkColorChooser.
725
Martin v. Löwise354d782008-12-29 16:03:04 +0000726- Issue #3248: Allow placing ScrolledText in a PanedWindow.
727
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000728- Issue #4444: Allow assertRaises() to be used as a context handler, so that
729 the code under test can be written inline if more practical.
730
Georg Brandldb7b6b92009-01-01 15:53:14 +0000731- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
732 works as expected in the interactive environment.
733
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000734- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
735 Gabriel Genellina.
736
Antoine Pitrou180a3362008-12-14 16:36:46 +0000737- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
738 boundary.
739
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000740- Issue #4223: inspect.getsource() will now correctly display source code
741 for packages loaded via zipimport (or any other conformant PEP 302
742 loader). Original patch by Alexander Belopolsky.
743
744- Issue #4201: pdb can now access and display source code loaded via
745 zipimport (or any other conformant PEP 302 loader). Original patch by
746 Alexander Belopolsky.
747
748- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
749 302 conformant loader) will now work correctly in most cases (they
750 are still subject to the constraints that exist for all code running
751 from inside a module loaded via a PEP 302 loader and attempting to
752 perform IO operations based on __file__). Original patch by
753 Alexander Belopolsky.
754
755- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
756 allows backporting to maintenance branches. Original patch by
757 Alexander Belopolsky.
758
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000759- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
760 a non-ASCII letter.
761
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000762- Issue #4616: TarFile.utime(): Restore directory times on Windows.
763
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000764- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
765 codec cannot be found. This is for compatibility with the builtin behavior.
766
Facundo Batista708d5812008-12-11 04:20:07 +0000767- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
768 give correct results in the case where one argument is a quiet NaN
769 and the other is a finite number that requires rounding.
770
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000771- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
772 libs.
773
Georg Brandlf9734072008-12-07 15:30:06 +0000774- Added the subprocess.check_call_output() convenience function to get output
775 from a subprocess on success or raise an exception on error.
776
777- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
778 support unusual filenames (such as those containing semi-colons) in
779 Content-Disposition headers.
780
781- Issue #4384: Added logging integration with warnings module using
782 captureWarnings(). This change includes a NullHandler which does nothing;
783 it will be of use to library developers who want to avoid the "No handlers
784 could be found for logger XXX" message which can appear if the library user
785 doesn't configure logging.
786
787- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
788 exception.
789
Georg Brandleee31162008-12-07 15:15:22 +0000790- Issue #4529: fix the parser module's validation of try-except-finally
791 statements.
792
793- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
794 not a malformed option.
795
796- Added the subprocess.check_output() convenience function to get output
797 from a subprocess on success or raise an exception on error.
798
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000799- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
800 the corresponding tests now pass.
801
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000802- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
803 it was calling the wrong open() function.
804
Fred Drake9a0a65b2008-12-04 19:24:50 +0000805- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
806 support unusual filenames (such as those containing semi-colons) in
807 Content-Disposition headers.
808
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000809- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
810 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
811
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000812- Issue #5104: The socket module now raises OverflowError when 16-bit port and
813 protocol numbers are supplied outside the allowed 0-65536 range on bind()
814 and getservbyport().
815
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000816Tools/Demos
817-----------
818
Antoine Pitrou8a681222009-02-07 17:13:31 +0000819- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
820 and make it 2.6-compatible.
821
Guilherme Poloa7d27972009-01-28 16:06:51 +0000822- Ttk demos added in Demo/tkinter/ttk/
823
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000824- Issue #4677: add two list comprehension tests to pybench.
825
Georg Brandlb1441c72009-01-03 22:33:39 +0000826
827Build
828-----
829
Matthias Klose906785c2009-02-22 23:18:38 +0000830- Link the shared python library with $(MODLIBS).
831
Martin v. Löwis11f72102009-02-10 13:13:30 +0000832- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
833
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000834- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
835
Martin v. Löwise97637d2009-01-11 09:45:11 +0000836- Issue #4895: Use _strdup on Windows CE.
837
Georg Brandlb1441c72009-01-03 22:33:39 +0000838- Issue #4472: "configure --enable-shared" now works on OSX
839
840- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
841
842- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
843
844- Issue #4289: Remove Cancel button from AdvancedDlg.
845
846- Issue #1656675: Register a drop handler for .py* files on Windows.
847
848- Issue #4120: Exclude manifest from extension modules in VS2008.
849
850- Issue #4091: Install pythonxy.dll in system32 again.
851
852- Issue #4018: Disable "for me" installations on Vista.
853
854- Issue #3758: Add ``patchcheck`` build target to .PHONY.
855
856- Issue #4204: Fixed module build errors on FreeBSD 4.
857
858
859C-API
860-----
861
Mark Dickinson21776072009-02-10 16:13:25 +0000862- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
863 for negative arguments. Previously, it raised TypeError.
864
Georg Brandlb1441c72009-01-03 22:33:39 +0000865- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
866
867- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
868 the GIL is released, or owned by another thread.
869
870- Issue #4122: On Windows, fix a compilation error when using the
871 Py_UNICODE_ISSPACE macro in an extension module.
872
873
Mark Dickinsone675f082008-12-11 21:56:00 +0000874Extension Modules
875-----------------
876
Gregory P. Smith365a1862009-02-12 07:35:29 +0000877- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
878 supporting objects as input no matter how it was compiled (built in
879 implementations or external openssl library).
880
Mark Dickinson29500f62009-01-15 15:36:10 +0000881- Issue #4397: Fix occasional test_socket failure on OS X.
882
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000883- Issue #4279: Fix build of parsermodule under Cygwin.
884
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000885- Issue #4751: hashlib now releases the GIL when hashing large buffers
886 (with a hardwired threshold of 2048 bytes), allowing better parallelization
887 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
888
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000889- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
890
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000891- Issue #4738: Each zlib object now has a separate lock, allowing to compress
892 or decompress several streams at once on multi-CPU systems. Also, the GIL
893 is now released when computing the CRC of a large buffer. Patch by ebfe.
894
Georg Brandlb1441c72009-01-03 22:33:39 +0000895- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
896
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000897- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
898
Mark Dickinsone675f082008-12-11 21:56:00 +0000899- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
900 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000901
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000902- Issue #4583: array.array would not always prohibit resizing when a buffer
903 has been exported, resulting in an interpreter crash when accessing the
904 buffer.
905
Martin v. Löwis841edad2008-11-30 10:36:49 +0000906
Jack Diederiche0cbd692009-04-01 04:27:09 +0000907- Issue #5228: Make functools.partial objects can now be pickled.
908
Guilherme Polo9de29af2009-01-28 20:40:48 +0000909Tests
910-----
911
R. David Murraya21e4ca2009-03-31 23:16:50 +0000912- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
913 that should cause a test to be skipped are now done using import_module
914 from test support, which does the conversion.
915
Guilherme Polo9de29af2009-01-28 20:40:48 +0000916- Issue #5083: New 'gui' resource for regrtest.
917
918
Brett Cannon7317c1e2008-11-25 19:19:17 +0000919Docs
920----
921
Georg Brandl52b92cc2008-05-25 09:43:03 +0000922
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000923**(For information about older versions, consult the HISTORY file.)**