blob: 0d533cf15d9ace9d9994d6b73277da98ab3e19d8 [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Eric Smith6dc46f52009-04-27 20:39:49 +000015- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
16 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
17
Eric Smithcc32a112009-04-26 21:35:14 +000018- Issue #5835: Deprecate PyOS_ascii_formatd.
19
Martin v. Löwis71efeb72009-04-26 01:02:07 +000020- Issue #4971: Fix titlecase for characters that are their own
21 titlecase, but not their own uppercase.
22
Benjamin Peterson193152c2009-04-25 01:08:45 +000023- Issue #5283: Setting __class__ in __del__ caused a segfault.
24
Mark Dickinsonad476da2009-04-23 19:14:16 +000025- Issue #5816: complex(repr(z)) now recovers z exactly, even when
26 z involves nans, infs or negative zeros.
27
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000028- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000029
Mark Dickinsone6a076d2009-04-18 11:48:33 +000030- Issue #1869 (and many duplicates): make round(x, n) correctly
31 rounded for a float x, by using the decimal <-> binary conversions
32 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
33 consistently agrees with format(x, '.2f').
34
Benjamin Petersonae937c02009-04-18 20:54:08 +000035- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
36 some builtin types.
37
Eric Smith0923d1d2009-04-16 20:16:10 +000038- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
39
Eric Smith35e84722009-04-16 20:21:28 +000040- Issue #5515: str.format() type 'n' combined with commas and leading
41 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000042
43- Implement PEP 378, Format Specifier for Thousands Separator, for
44 floats.
45
Mark Dickinson3370cce2009-04-17 22:40:53 +000046- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000047 1e11, not 1e12. This avoids printing 13 significant digits in
48 situations where only 12 of them are correct. Example problem
49 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
50 long time.)
51
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000052- Issue #1580: On most platforms, use a 'short' float repr: for a
53 finite float x, repr(x) now outputs a string based on the shortest
54 sequence of decimal digits that rounds to x. Previous behaviour was
55 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000056 Another minor difference is that the new repr switches to
57 exponential notation at 1e16 instead of the previous 1e17; this
58 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000059
60 There's a new sys attribute sys.float_repr_style, which takes
61 the value 'short' to indicate that we're using short float repr,
62 and 'legacy' if the short float repr isn't available for one
63 reason or another.
64
65 The float repr change involves incorporating David Gay's 'perfect
66 rounding' code into the Python core (it's in Python/dtoa.c). As a
67 secondary consequence, all string-to-float and float-to-string
68 conversions (including all float formatting operations) will be
69 correctly rounded on these platforms.
70
71 See issue 1580 discussions for details of platforms for which
72 this change does not apply.
73
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000074- Issue #5759: float() didn't call __float__ on str subclasses.
75
Georg Brandlabc38772009-04-12 15:51:51 +000076- The string.maketrans() function is deprecated; there is a new static method
77 maketrans() on the bytes and bytearray classes. This removes confusion about
78 the types string.maketrans() is supposed to work with, and mirrors the
79 methods available on the str class.
80
R. David Murraydc6da8a2009-04-09 22:16:43 +000081- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
82 its clarity and its speed.
83
Matthias Klose091c7b12009-04-07 13:24:27 +000084- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
85 to avoid compiler warnings.
86
Benjamin Peterson0b4915e2009-04-25 21:11:45 +000087Installation
88------------
89
90- Issue #5756: Install idle and pydoc with a 3 suffix.
91
Benjamin Petersonbd35b032009-04-04 23:16:41 +000092Library
93-------
94
Thomas Hellerc1edc2d2009-04-28 19:55:58 +000095- Issue #4305: ctypes should now build again on mipsel-linux-gnu
96
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +000097- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
98 string is already in normalized form, by performing a quick check beforehand.
99 Original patch by Rauli Ruohonen.
100
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000101- Issue #5853: calling a function of the mimetypes module from several threads
102 at once could hit the recursion limit if the mimetypes database hadn't been
103 initialized before.
104
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000105- Issue #5854: Updated __all__ to include some missing names and remove some
106 names which should not be exported.
107
Thomas Heller34596a92009-04-24 20:50:00 +0000108- Issue #3102: All global symbols that the _ctypes extension defines
109 are now prefixed with 'Py' or '_ctypes'.
110
111- Issue #5041: ctypes does now allow pickling wide character.
112
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000113- Issue #5812: For the two-argument form of the Fraction constructor,
114 Fraction(m, n), m and n are permitted to be arbitrary Rational
115 instances.
116
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000117- Issue #5812: Fraction('1e6') is valid: more generally, any string
118 that's valid for float() is now valid for Fraction(), with the
119 exception of strings representing NaNs and infinities.
120
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000121- Issue #5734: BufferedRWPair was poorly tested and had several glaring
122 bugs. Patch by Brian Quinlan.
123
R. David Murray9e94ddf2009-04-13 17:06:33 +0000124- Issue #1161031: fix readwrite select flag handling: POLLPRI now
125 results in a handle_expt_event call, not handle_read_event, and POLLERR
126 and POLLNVAL now call handle_close, not handle_expt_event. Also,
127 dispatcher now has an 'ignore_log_types' attribute for suppressing
128 log messages, which is set to 'warning' by default.
129
Matthias Klosea3d29e82009-04-07 13:13:10 +0000130- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
131 new arguments introduced in 2.5.
132
Walter Dörwald1b08b302009-04-25 14:13:56 +0000133- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
134 makeunicodedata.py and regenerated the Unicode database (This fixes
135 u'\u1d79'.lower() == '\x00').
136
Matthias Klose535336f2009-04-07 13:49:45 +0000137Extension Modules
138-----------------
139
Mark Dickinsonea835e72009-04-19 20:40:33 +0000140- Issue #5463: In struct module, remove deprecated float coercion
141 for integer type codes: struct.pack('L', 0.3) should now raise
142 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
143 The version number has been bumped to 0.3.
144
Matthias Klose535336f2009-04-07 13:49:45 +0000145- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
146 using Berkley-DB.
147
Nick Coghlan47384702009-04-22 16:13:36 +0000148Tests
149-----
150
151- Issue #5354: New test support function import_fresh_module() makes
152 it easy to import both normal and optimised versions of modules.
153 test_heapq and test_warnings have been adjusted to use it, tests for
154 other modules with both C and Python implementations in the stdlib
155 can be adjusted to use it over time.
156
Walter Dörwald4ba80132009-04-25 12:48:43 +0000157- Issue #5837: Certain sequences of calls to set() and unset() for
158 support.EnvironmentVarGuard objects restored the environment variables
159 incorrectly on __exit__.
160
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000161
Benjamin Petersond1735892009-03-07 18:46:21 +0000162What's New in Python 3.1 alpha 2?
163=================================
164
Benjamin Peterson88f14352009-04-04 21:06:52 +0000165*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000166
167Core and Builtins
168-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000169
Eric Smith1e1d7d22009-04-03 22:25:33 +0000170- Implement PEP 378, Format Specifier for Thousands Separator, for
171 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000172
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000173- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
174
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000175- Issue #5499: The 'c' code for argument parsing functions now only accepts a
176 byte, and the 'C' code only accepts a unicode character.
177
Georg Brandl406b3d82009-04-11 21:24:37 +0000178- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
179 when hitting the recursion limit under certain circumstances.
180
Brett Cannon0759dd62009-04-01 18:13:07 +0000181- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
182
Georg Brandlab6f2f62009-03-31 04:16:10 +0000183- Fix a segfault when running test_exceptions with coverage, caused by
184 insufficient checks in accessors of Exception.__context__.
185
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000186- Issue #5604: non-ASCII characters in module name passed to
187 imp.find_module() were converted to UTF-8 while the path is
188 converted to the default filesystem encoding, causing nonsense.
189
Benjamin Peterson09832742009-03-26 17:15:46 +0000190- Issue #5126: str.isprintable() returned False for space characters.
191
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000192- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
193 the end sys.path, for compatibility with the system install of Python.
194
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000195- Issue #4688: Add a heuristic so that tuples and dicts containing only
196 untrackable objects are not tracked by the garbage collector. This can
197 reduce the size of collections and therefore the garbage collection overhead
198 on long-running programs, depending on their particular use of datatypes.
199
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000200- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
201 improve its performance. Long divisions and remainder operations
202 are now between 50% and 150% faster.
203
Mark Dickinsonbd792642009-03-18 20:06:12 +0000204- Issue #4258: Make it possible to use base 2**30 instead of base
205 2**15 for the internal representation of integers, for performance
206 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
207 --enable-big-digits option to configure, which overrides the
208 default. Add sys.int_info structseq to provide information about
209 the internal format.
210
Mark Dickinson081dfee2009-03-18 14:47:41 +0000211- Issue #4474: PyUnicode_FromWideChar now converts characters outside
212 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
213 and sizeof(Py_UNICODE) == 2.
214
Eric Smith8ec90442009-03-14 12:29:34 +0000215- Issue #5237: Allow auto-numbered fields in str.format(). For
216 example: '{} {}'.format(1, 2) == '1 2'.
217
Antoine Pitrou652e7072009-03-13 19:25:20 +0000218- Issue #5392: when a very low recursion limit was set, the interpreter would
219 abort with a fatal error after the recursion limit was hit twice.
220
Matthias Klose042f1332009-04-04 14:32:42 +0000221- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
222 short file names.
223
Benjamin Petersond1735892009-03-07 18:46:21 +0000224Library
225-------
226
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000227- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000228 mailbox.MH.get_message().
229
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000230- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
231 error substitutions from non-strict codec error callbacks in
232 incrementalencoder and StreamWriter.
233
Georg Brandl33c28812009-04-01 23:07:29 +0000234- Issue #5656: Fix the coverage reporting when running the test suite with
235 the -T argument.
236
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000237- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
238
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000239- Issue #5624: Fix the _winreg module name still used in several modules.
240
Benjamin Petersona1b49012009-03-31 23:11:32 +0000241- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
242
Jesse Nollera9314042009-03-31 22:36:44 +0000243- Issue #5619: Multiprocessing children disobey the debug flag and causes
244 popups on windows buildbots. Patch applied to work around this issue.
245
Jesse Noller32d68c22009-03-31 18:48:42 +0000246- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
247
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000248- Issue #5387: Fixed mmap.move crash by integer overflow.
249
Jesse Nollerf8d00852009-03-31 03:25:07 +0000250- Issue #5261: Patch multiprocessing's semaphore.c to support context
251 manager use: "with multiprocessing.Lock()" works now.
252
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000253- Issue #5236: Change time.strptime() to only take strings. Didn't work with
254 bytes already but the failure was non-obvious.
255
Jesse Noller7af4ef82009-03-30 16:47:15 +0000256- Issue #5177: Multiprocessing's SocketListener class now uses
257 socket.SO_REUSEADDR on all connections so that the user no longer needs
258 to wait 120 seconds for the socket to expire.
259
Benjamin Peterson48e24782009-03-29 13:02:52 +0000260- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
261
Antoine Pitrou66994e12009-03-29 00:45:26 +0000262- Issue #1174606: Calling read() without arguments of an unbounded file
263 (typically /dev/zero under Unix) could crash the interpreter.
264
Benjamin Peterson59406a92009-03-26 17:10:29 +0000265- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
266 io.BufferedRandom have been deprecated for removal in Python 3.2.
267
Lars Gustäbel42e00912009-03-22 20:34:29 +0000268- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
269 forever on incomplete input. That caused tarfile.open() to hang when used
270 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
271 partial bzip2 compressed data.
272
Mark Dickinson79f52032009-03-17 23:12:51 +0000273- Issue #2110: Add support for thousands separator and 'n' type
274 specifier to Decimal.__format__
275
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000276- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
277 '>' alignment characters.
278
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000279- The error detection code in FileIO.close() could fail to reflect the `errno`
280 value, and report it as -1 instead.
281
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000282- Issue #5016: FileIO.seekable() could return False if the file position
283 was negative when truncated to a C int. Patch by Victor Stinner.
284
Mark Dickinsonae681df2009-03-21 10:26:31 +0000285Extension Modules
286-----------------
287
Benjamin Petersone099b372009-04-04 17:09:35 +0000288- Issue #5391: mmap now deals exclusively with bytes.
289
Mark Dickinsonae681df2009-03-21 10:26:31 +0000290- Issue #5463: In struct module, remove deprecated overflow wrapping
291 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000292 struct.error instead of returning b'\xff\xff\xff\xff'. The
293 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
294 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000295
Benjamin Petersond1735892009-03-07 18:46:21 +0000296
Benjamin Petersona58a6262009-03-07 16:34:40 +0000297What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000298================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000299
Benjamin Petersona58a6262009-03-07 16:34:40 +0000300*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000301
302Core and Builtins
303-----------------
304
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000305- The io module has been reimplemented in C for speed.
306
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000307- Give dict views an informative __repr__.
308
Eric Smith5e5c0db2009-02-20 14:25:03 +0000309- Issue #5247: Improve error message when unknown format codes are
310 used when using str.format() with str, int, and float arguments.
311
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000312- Issue #5249: time.strftime returned malformed string when format string
313 contained non ascii character on windows.
314
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000315- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
316 source has already been decoded into str.
317
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000318- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
319 rotating the object pointer by 4 bits to the right.
320
Mark Dickinson87ec0852009-02-09 17:15:59 +0000321- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
322 it now forces its argument to double before testing for infinity.
323
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000324- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
325 returns a non-number type.
326
Benjamin Peterson87618552009-02-08 15:00:52 +0000327- Issue #5182: Removed memoryview.__str__.
328
Mark Dickinsonc008a172009-02-01 13:59:22 +0000329- Issue #1717: Removed builtin cmp() function, dropped tp_compare
330 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000331 the type definition cmpfunc. The tp_compare slot has been renamed
332 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000333
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000334- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000335 were suppressing all exceptions. These include list() and bytearray().
336
Mark Dickinson1124e712009-01-28 21:25:58 +0000337- Issue #4707: round(x, n) now returns an integer if x is an integer.
338 Previously it returned a float.
339
Antoine Pitroub52ec782009-01-25 16:34:23 +0000340- Issue #4753: By enabling a configure option named '--with-computed-gotos'
341 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
342 evaluation loop is compiled with a new dispatch mechanism which gives
343 speedups of up to 20%, depending on the system, on various benchmarks.
344
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000345- Issue #4874: Most builtin decoders now reject unicode input.
346
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000347- Issue #4842: Don't allow trailing 'L' when constructing an integer
348 from a string.
349
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000350- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
351
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000352- Issue #4838: When a module is deallocated, free the memory backing the
353 optional module state data.
354
Mark Dickinson8055afd2009-01-17 10:04:45 +0000355- Issue #4910: Rename nb_long slot to nb_reserved, and change its
356 type to (void *).
357
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000358- Issue #4935: The overflow checking code in the expandtabs() method common
359 to str, bytes and bytearray could be optimized away by the compiler, letting
360 the interpreter segfault instead of raising an error.
361
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000362- Issue #3720: Fix a crash when an iterator modifies its class and removes its
363 __next__ method.
364
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000365- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
366 function no longer attempt to call the __long__ slot to convert an object
367 to an integer. Only the __int__ and __trunc__ slots are examined.
368
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000369- Issue #4893: Use NT threading on CE.
370
Martin v. Löwisec59d042009-01-12 07:59:10 +0000371- Issue #4915: Port sysmodule to Windows CE.
372
Antoine Pitrouab868312009-01-10 15:40:25 +0000373- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
374 common cases are optimized thanks to a dedicated fast path and a moderate
375 amount of loop unrolling.
376
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000377- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
378 collecting the oldest generation) so that allocating lots of objects without
379 destroying them does not show quadratic performance. Based on a proposal by
380 Martin von Löwis at
381 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
382
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000383- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000384 having been closed (for instance, a read() call could return some
385 previously buffered data). Patch by Dmitry Vasiliev.
386
Antoine Pitrou05608432009-01-09 18:53:14 +0000387- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
388 flag to work properly. Furthermore, when specifying -u, the text stdout
389 and stderr streams have line-by-line buffering enabled (the default being
390 to buffer arbitrary chunks of data).
391
Raymond Hettinger35631532009-01-09 03:58:09 +0000392- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
393 instead of ints (reducing its size from 4 to 8 times thereby reducing
394 Python's overall memory).
395
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000396- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
397 an existing .py counterpart, override the co_filename attributes of all
398 code objects if the original filename is obsolete (which can happen if the
399 file has been renamed, moved, or if it is accessed through different paths).
400 Patch by Ziga Seilnacht and Jean-Paul Calderone.
401
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000402- Issue #4580: Fix slicing of memoryviews when the item size is greater than
403 one byte. Also fixes the meaning of len() so that it returns the number of
404 items, rather than the size in bytes.
405
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000406- Issue #4075: Use OutputDebugStringW in Py_FatalError.
407
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000408- Issue #4747: When the terminal does not use utf-8, executing a script with
409 non-ascii characters in its name could fail with a "SyntaxError: None" error.
410
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000411- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000412 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000413
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000414- Issue #3680: Reference cycles created through a dict, set or deque iterator
415 did not get collected.
416
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000417- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
418 where the tp_hash and tp_dict slots are both NULL.
419
Georg Brandlccc47b62008-12-28 11:44:14 +0000420- Issue #4759: None is now allowed as the first argument of
421 bytearray.translate(). It was always allowed for bytes.translate().
422
Skip Montanaro80072cb2008-12-23 03:51:14 +0000423- Added test case to ensure attempts to read from a file opened for writing
424 fail.
425
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000426- Issue #3106: Speedup some comparisons (str/str and int/int).
427
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000428- Issue #2183: Simplify and optimize bytecode for list, dict and set
429 comprehensions. Original patch for list comprehensions by Neal Norwitz.
430
Antoine Pitrou621601a2008-12-17 23:18:19 +0000431- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
432 print elapsed times, not only when some objects are uncollectable /
433 unreachable. Original patch by Neil Schemenauer.
434
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000435- Issue #3439: Add a bit_length method to int.
436
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000437- Issue #2173: When getting device encoding, check that return value of
438 nl_langinfo is not the empty string. This was causing silent build
439 failures on OS X.
440
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000441- Issue #4597: Fixed several opcodes that weren't always propagating
442 exceptions.
443
444- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000445 context manager returns a value that cannot be converted to a bool.
446
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000447- Issue #4445: Replace "sizeof(PyBytesObject)" with
448 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
449 bytes instances. On a typical machine this saves 3 bytes of memory
450 (on average) per allocation of a bytes instance.
451
Christian Heimesa872de52008-12-05 08:26:55 +0000452- Issue #4533: File read operation was dreadfully slow due to a slowly
453 growing read buffer. Fixed by using the same growth rate algorithm as
454 Python 2.x.
455
Antoine Pitrou5504e892008-12-06 21:27:53 +0000456- Issue #4509: Various issues surrounding resize of bytearray objects to
457 which there are buffer exports (e.g. memoryview instances).
458
Georg Brandlf9734072008-12-07 15:30:06 +0000459- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
460 method on file objects with closefd=False. The file descriptor is still
461 kept open but the file object behaves like a closed file. The ``FileIO``
462 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000463
Antoine Pitroubc420402008-12-07 20:14:49 +0000464- Issue #4569: Interpreter crash when mutating a memoryview with an item size
465 larger than 1.
466
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000467- Issue #4748: Lambda generators no longer return a value.
468
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000469- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
470
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000471Library
472-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000473
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000474- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000475 sysconfig.get_config_vars.
476
Tarek Ziadé23336082009-04-25 12:39:56 +0000477- Issue #4951: Fixed failure in test_httpservers.
478
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000479- Issue #5795: Fixed test_distutils failure on Debian ppc.
480
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000481- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
482
Georg Brandl1f9fa312009-04-27 16:42:58 +0000483- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
484 a value in SafeConfigParser.
485
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000486- Issue #5732: added a new command in Distutils: check.
487
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000488- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000489 platforms. Initial patch by Paul Moore.
490
Tarek Ziadéf6370502009-04-05 22:57:21 +0000491- Issue #5095: Added bdist_msi to the list of bdist supported formats.
492 Initial fix by Steven Bethard.
493
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000494- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
495 Initial fix by Wayne Davison.
496
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000497- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000498
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000499- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000500
Brett Cannonf47e84c2009-04-01 16:06:01 +0000501- Issue #1665206 (partially): Move imports in cgitb to the top of the module
502 instead of performing them in functions. Helps prevent import deadlocking in
503 threads.
504
R. David Murraye59482e2009-04-01 03:42:00 +0000505- Issue #2522: locale.format now checks its first argument to ensure it has
506 been passed only one pattern, avoiding mysterious errors where it appeared
507 that it was failing to do localization.
508
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000509- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
510 Brandl.
511
Antoine Pitrou350370c2009-03-14 00:13:13 +0000512- Issue #1222: locale.format() bug when the thousands separator is a space
513 character.
514
Tarek Ziadé516db942009-03-11 12:52:00 +0000515- Issue #5472: Fixed distutils.test_util tear down. Original patch by
516 Tim Golden.
517
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000518- collections.deque() objects now have a read-only attribute called maxlen.
519
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000520- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
521 it is has been populated and properly configured in order to prevent
522 window flashing.
523
Guilherme Polo56f5be52009-03-07 01:54:57 +0000524- Issue #4792: Prevent a segfault in _tkinter by using the
525 guaranteed to be safe interp argument given to the PythonCmd in place of
526 the Tcl interpreter taken from a PythonCmd_ClientData.
527
528- Issue #5193: Guarantee that tkinter.Text.search returns a string.
529
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000530- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
531 Original patch by Akira Kitada.
532
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000533- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
534
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000535- Issue #5385: Fixed mmap crash after resize failure on windows.
536
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000537- Issue #5179: Fixed subprocess handle leak on failure on windows.
538
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000539- PEP 372: Added collections.OrderedDict().
540
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000541- The _asdict() for method for namedtuples now returns an OrderedDict().
542
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000543- configparser now defaults to using an ordered dictionary.
544
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000545- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
546 import guess_extension`` was used.
547
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000548- Issue #1733986: Fixed mmap crash in accessing elements of second map object
549 with same tagname but larger size than first map. (Windows)
550
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000551- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
552 overrun.
553
Tarek Ziadéf0721222009-02-28 10:16:43 +0000554- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
555 bdist_rpm command.
556
557- Issue #5378: added --quiet option to Distutils bdist_rpm command.
558
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000559- Issue #5052: make Distutils compatible with 2.3 again.
560
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000561- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
562 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000563
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000564- Issue #5287: Add exception handling around findCaller() call to help out
565 IronPython.
566
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000567- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
568 The file was resized to wrong size.
569
570- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
571
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000572- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000573 from the package_data and the data_files metadata.
574
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000575- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000576 support.TempdirManager, to avoid writing in the tests directory.
577
Tarek Ziadé68c50952009-02-13 23:04:17 +0000578- Issue #4524: distutils build_script command failed with --with-suffix=3.
579 Initial patch by Amaury Forgeot d'Arc.
580
Tarek Ziadé811d6242009-02-13 22:26:15 +0000581- Issue #2461: added tests for distutils.util
582
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000583- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
584 which inherited from numbers.py which did not have __slots__ defined. The
585 numbers hierarchy now has its own __slots__ declarations.
586
Antoine Pitroub353c122009-02-11 00:39:14 +0000587- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
588 encoding.
589
Thomas Heller465c8022009-02-10 18:59:04 +0000590- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
591 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
592
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000593- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
594 under NT and OS2. Patch by Philip Jenvey.
595
Brett Cannonbefb14f2009-02-10 02:10:16 +0000596- Issue #5128: Make compileall properly inspect bytecode to determine if needs
597 to be recreated. This avoids a timing hole thanks to the old reliance on the
598 ctime of the files involved.
599
Guilherme Polob681df42009-02-09 22:33:59 +0000600- Issue #5122: Synchronize tk load failure check to prevent a potential
601 deadlock.
602
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000603- Issue #1818: collections.namedtuple() now supports a keyword argument
604 'rename' which lets invalid fieldnames be automatically converted to
605 positional names in the form, _1, _2, ...
606
Guilherme Poloae098992009-02-09 16:44:24 +0000607- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
608
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000609- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
610 public documented method ``ZipImporter.get_filename()``.
611
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000612- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
613 the execution of packages by looking for and executing a ``__main__``
614 submodule when a package name is supplied. Initial patch by Andi
615 Vajda.
616
Guilherme Polo491aee22009-02-06 23:16:11 +0000617- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
618 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
619 Tkapp_Call when calling from a thread different than the one that created
620 the Tcl interpreter. Patch by Robert Hancock.
621
Eric Smith0e5b5622009-02-06 01:32:42 +0000622- Issue #4285: Change sys.version_info to be a named tuple. Patch by
623 Ross Light.
624
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000625- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000626 environment/Makefile. Patch by Douglas Greiman.
627
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000628- Issue #1276768: The verbose option was not used in the code of
629 distutils.file_util and distutils.dir_util.
630
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000631- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000632 --enabled-shared activated. Initial patch by Dave Peterson.
633
Guilherme Polo7f423952009-02-02 21:17:09 +0000634- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
635
Raymond Hettinger85602262009-02-03 04:19:10 +0000636- The shelve module now defaults to pickle protocol 3.
637
Brett Cannone61426e2009-01-30 01:31:34 +0000638- Fix a bug in the trace module where a bytes object from co_lnotab had its
639 items being passed through ord().
640
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000641- Issue #2047: shutil.move() could believe that its destination path was
642 inside its source path if it began with the same letters (e.g. "src" vs.
643 "src.new").
644
Guilherme Polo5f238482009-01-28 14:41:10 +0000645- Added the ttk module. See issue #2983: Ttk support for Tkinter.
646
Raymond Hettinger89e12962009-01-26 02:09:03 +0000647- Removed isSequenceType(), isMappingType, and isNumberType() from the
648 operator module; use the abstract base classes instead. Also removed
649 the repeat() function; use mul() instead.
650
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000651- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000652 collections.namedtuple() relied on __name__ being defined.
653
654- Backport importlib from Python 3.1. Only the import_module() function has
655 been backported to help facilitate transitions from 2.7 to 3.1.
656
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000657- Issue #1885: distutils. When running sdist with --formats=tar,gztar
658 the tar file was overriden by the gztar one.
659
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000660- Issue #4863: distutils.mwerkscompiler has been removed.
661
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000662- Added a new itertools functions: combinations_with_replacement()
663 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000664
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000665- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000666 allowed non-integer arguments.
667
Jesse Noller41faa542009-01-25 03:45:53 +0000668- Fix and properly document the multiprocessing module's logging
669 support, expose the internal levels and provide proper usage
670 examples.
671
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000672- Issue #1672332: fix unpickling of subnormal floats, which was
673 producing a ValueError on some platforms.
674
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000675- Issue #3881: Help Tcl to load even when started through the
676 unreadable local symlink to "Program Files" on Vista.
677
Martin v. Löwis59e47792009-01-24 14:10:07 +0000678- Issue #4710: Extract directories properly in the zipfile module;
679 allow adding directories to a zipfile.
680
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000681- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000682 --without-threads argument. When this occurs, _multiprocessing will
683 be disabled, and not compiled.
684
Antoine Pitrou08838b62009-01-21 00:55:13 +0000685- Issue #5008: When a file is opened in append mode with the new IO library,
686 do an explicit seek to the end of file (so that e.g. tell() returns the
687 file size rather than 0). This is consistent with the behaviour of the
688 traditional 2.x file object.
689
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000690- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
691 parameter was set.
692
Mark Dickinson8dd05142009-01-20 20:43:58 +0000693- Issue #4842: Always append a trailing 'L' when pickling longs using
694 pickle protocol 0. When reading, the 'L' is optional.
695
Brett Cannonafccd632009-01-20 02:21:27 +0000696- Add the importlib package.
697
Jesse Noller9a0fc972009-01-18 21:12:58 +0000698- Issue #4301: Patch the logging module to add processName support, remove
699 _check_logger_class from multiprocessing.
700
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000701- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000702 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000703
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000704- Issue #4959: inspect.formatargspec now works for keyword only arguments
705 without defaults.
706
Jesse Noller6214edd2009-01-19 16:23:53 +0000707- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
708 for *nix machines for negative handles and large int handles. Without this check
709 it is possible to segfault the interpreter.
710
Jesse Nollerb0516a62009-01-18 03:11:38 +0000711- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
712 in sharedctypes.py.
713
714- Issue #1225107: inspect.isclass() returned True for instances with a custom
715 __getattr__.
716
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000717- Issue #3826 and #4791: The socket module now closes the underlying socket
718 appropriately when it is being used via socket.makefile() objects
719 rather than delaying the close by waiting for garbage collection to do it.
720
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000721- Issue #1696199: Add collections.Counter() for rapid and convenient
722 counting.
723
Antoine Pitrou308705e2009-01-10 16:22:51 +0000724- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
725
Thomas Heller5e4e4272009-01-08 09:34:20 +0000726- Issue #4867: Fixed a crash in ctypes when passing a string to a
727 function without defining argtypes.
728
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000729- Issue #4272: Add an optional argument to the GzipFile constructor to override
730 the timestamp in the gzip stream. The default value remains the current time.
731 The information can be used by e.g. gunzip when decompressing. Patch by
732 Jacques Frechet.
733
Mark Dickinson315a20a2009-01-04 21:34:18 +0000734- Restore Python 2.3 compatibility for decimal.py.
735
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000736- Issue #3638: Remove functions from _tkinter module level that depend on
737 TkappObject to work with multiple threads.
738
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000739- Issue #4718: Adapt the wsgiref package so that it actually works with
740 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000741 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
742
Raymond Hettinger771ed762009-01-03 19:20:32 +0000743- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
744 to the decimal module.
745
Georg Brandl3a9b0622009-01-03 22:07:57 +0000746- Fractions.from_float() no longer loses precision for integers too big to
747 cast as floats.
748
Mark Dickinsonf9236412009-01-02 23:23:21 +0000749- Issue #4812: add missing underscore prefix to some internal-use-only
750 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
751
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000752- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000753 did unnecessary work in the common case where no key function was specified.
754
Georg Brandlb1441c72009-01-03 22:33:39 +0000755- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
756 the function is not a generator.
757
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000758- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
759 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000760
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000761- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000762 function. Original patch by Thomas Heller.
763
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000764- Issue #3767: Convert Tk object to string in tkColorChooser.
765
Martin v. Löwise354d782008-12-29 16:03:04 +0000766- Issue #3248: Allow placing ScrolledText in a PanedWindow.
767
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000768- Issue #4444: Allow assertRaises() to be used as a context handler, so that
769 the code under test can be written inline if more practical.
770
Georg Brandldb7b6b92009-01-01 15:53:14 +0000771- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
772 works as expected in the interactive environment.
773
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000774- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
775 Gabriel Genellina.
776
Antoine Pitrou180a3362008-12-14 16:36:46 +0000777- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
778 boundary.
779
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000780- Issue #4223: inspect.getsource() will now correctly display source code
781 for packages loaded via zipimport (or any other conformant PEP 302
782 loader). Original patch by Alexander Belopolsky.
783
784- Issue #4201: pdb can now access and display source code loaded via
785 zipimport (or any other conformant PEP 302 loader). Original patch by
786 Alexander Belopolsky.
787
788- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
789 302 conformant loader) will now work correctly in most cases (they
790 are still subject to the constraints that exist for all code running
791 from inside a module loaded via a PEP 302 loader and attempting to
792 perform IO operations based on __file__). Original patch by
793 Alexander Belopolsky.
794
795- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
796 allows backporting to maintenance branches. Original patch by
797 Alexander Belopolsky.
798
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000799- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
800 a non-ASCII letter.
801
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000802- Issue #4616: TarFile.utime(): Restore directory times on Windows.
803
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000804- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
805 codec cannot be found. This is for compatibility with the builtin behavior.
806
Facundo Batista708d5812008-12-11 04:20:07 +0000807- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
808 give correct results in the case where one argument is a quiet NaN
809 and the other is a finite number that requires rounding.
810
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000811- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
812 libs.
813
Georg Brandlf9734072008-12-07 15:30:06 +0000814- Added the subprocess.check_call_output() convenience function to get output
815 from a subprocess on success or raise an exception on error.
816
817- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
818 support unusual filenames (such as those containing semi-colons) in
819 Content-Disposition headers.
820
821- Issue #4384: Added logging integration with warnings module using
822 captureWarnings(). This change includes a NullHandler which does nothing;
823 it will be of use to library developers who want to avoid the "No handlers
824 could be found for logger XXX" message which can appear if the library user
825 doesn't configure logging.
826
827- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
828 exception.
829
Georg Brandleee31162008-12-07 15:15:22 +0000830- Issue #4529: fix the parser module's validation of try-except-finally
831 statements.
832
833- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
834 not a malformed option.
835
836- Added the subprocess.check_output() convenience function to get output
837 from a subprocess on success or raise an exception on error.
838
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000839- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
840 the corresponding tests now pass.
841
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000842- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
843 it was calling the wrong open() function.
844
Fred Drake9a0a65b2008-12-04 19:24:50 +0000845- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
846 support unusual filenames (such as those containing semi-colons) in
847 Content-Disposition headers.
848
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000849- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
850 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
851
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000852- Issue #5104: The socket module now raises OverflowError when 16-bit port and
853 protocol numbers are supplied outside the allowed 0-65536 range on bind()
854 and getservbyport().
855
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000856Tools/Demos
857-----------
858
Antoine Pitrou8a681222009-02-07 17:13:31 +0000859- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
860 and make it 2.6-compatible.
861
Guilherme Poloa7d27972009-01-28 16:06:51 +0000862- Ttk demos added in Demo/tkinter/ttk/
863
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000864- Issue #4677: add two list comprehension tests to pybench.
865
Georg Brandlb1441c72009-01-03 22:33:39 +0000866
867Build
868-----
869
Matthias Klose906785c2009-02-22 23:18:38 +0000870- Link the shared python library with $(MODLIBS).
871
Martin v. Löwis11f72102009-02-10 13:13:30 +0000872- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
873
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000874- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
875
Martin v. Löwise97637d2009-01-11 09:45:11 +0000876- Issue #4895: Use _strdup on Windows CE.
877
Georg Brandlb1441c72009-01-03 22:33:39 +0000878- Issue #4472: "configure --enable-shared" now works on OSX
879
880- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
881
882- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
883
884- Issue #4289: Remove Cancel button from AdvancedDlg.
885
886- Issue #1656675: Register a drop handler for .py* files on Windows.
887
888- Issue #4120: Exclude manifest from extension modules in VS2008.
889
890- Issue #4091: Install pythonxy.dll in system32 again.
891
892- Issue #4018: Disable "for me" installations on Vista.
893
894- Issue #3758: Add ``patchcheck`` build target to .PHONY.
895
896- Issue #4204: Fixed module build errors on FreeBSD 4.
897
898
899C-API
900-----
901
Mark Dickinson21776072009-02-10 16:13:25 +0000902- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
903 for negative arguments. Previously, it raised TypeError.
904
Georg Brandlb1441c72009-01-03 22:33:39 +0000905- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
906
907- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
908 the GIL is released, or owned by another thread.
909
910- Issue #4122: On Windows, fix a compilation error when using the
911 Py_UNICODE_ISSPACE macro in an extension module.
912
913
Mark Dickinsone675f082008-12-11 21:56:00 +0000914Extension Modules
915-----------------
916
Gregory P. Smith365a1862009-02-12 07:35:29 +0000917- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
918 supporting objects as input no matter how it was compiled (built in
919 implementations or external openssl library).
920
Mark Dickinson29500f62009-01-15 15:36:10 +0000921- Issue #4397: Fix occasional test_socket failure on OS X.
922
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000923- Issue #4279: Fix build of parsermodule under Cygwin.
924
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000925- Issue #4751: hashlib now releases the GIL when hashing large buffers
926 (with a hardwired threshold of 2048 bytes), allowing better parallelization
927 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
928
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000929- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
930
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000931- Issue #4738: Each zlib object now has a separate lock, allowing to compress
932 or decompress several streams at once on multi-CPU systems. Also, the GIL
933 is now released when computing the CRC of a large buffer. Patch by ebfe.
934
Georg Brandlb1441c72009-01-03 22:33:39 +0000935- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
936
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000937- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
938
Mark Dickinsone675f082008-12-11 21:56:00 +0000939- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
940 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000941
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000942- Issue #4583: array.array would not always prohibit resizing when a buffer
943 has been exported, resulting in an interpreter crash when accessing the
944 buffer.
945
Martin v. Löwis841edad2008-11-30 10:36:49 +0000946
Jack Diederiche0cbd692009-04-01 04:27:09 +0000947- Issue #5228: Make functools.partial objects can now be pickled.
948
Guilherme Polo9de29af2009-01-28 20:40:48 +0000949Tests
950-----
951
R. David Murraya21e4ca2009-03-31 23:16:50 +0000952- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000953 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +0000954 from test support, which does the conversion.
955
Guilherme Polo9de29af2009-01-28 20:40:48 +0000956- Issue #5083: New 'gui' resource for regrtest.
957
958
Brett Cannon7317c1e2008-11-25 19:19:17 +0000959Docs
960----
961
Georg Brandl52b92cc2008-05-25 09:43:03 +0000962
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000963**(For information about older versions, consult the HISTORY file.)**