blob: fccafcc0a937019c59038d537af57364cf34860b [file] [log] [blame]
Georg Brandlab6f2f62009-03-31 04:16:10 +00001+++++++++++
2Python News
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00003+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Benjamin Petersonbd35b032009-04-04 23:16:41 +00007What's New in Python 3.1 beta 1?
8================================
9
10*Release date: XXXX-XX-XX*
11
12Core and Builtins
13-----------------
14
Martin v. Löwisdb12d452009-05-02 18:52:14 +000015- Issue #3672: Reject surrogates in utf-8 codec; add surrogates error handler.
16
Benjamin Petersond2e0c792009-05-01 20:40:59 +000017- Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have
18 received a new method, detach(). detach() disconnects the underlying stream
19 from the buffer or text IO and returns it.
20
Mark Dickinson33841c32009-05-01 15:37:04 +000021- Issue #5859: Remove switch from '%f' to '%g'-style formatting for
22 floats with absolute value over 1e50. Also remove length
23 restrictions for float formatting: '%.67f' % 12.34 and '%.120e' %
24 12.34 no longer raise an exception.
Mark Dickinsonf489caf2009-05-01 11:42:00 +000025
Eric Smith58a42242009-04-30 01:00:33 +000026- Issue #1588: Add complex.__format__. For example,
27 format(complex(1, 2./3), '.5') now produces a sensible result.
28
Mark Dickinsond3ca5572009-04-29 18:47:07 +000029- Issue #5864: Fix empty format code formatting for floats so that it
30 never gives more than the requested number of significant digits.
31
Eric Smith6dc46f52009-04-27 20:39:49 +000032- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes
33 new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
34
Eric Smithcc32a112009-04-26 21:35:14 +000035- Issue #5835: Deprecate PyOS_ascii_formatd.
36
Martin v. Löwis71efeb72009-04-26 01:02:07 +000037- Issue #4971: Fix titlecase for characters that are their own
38 titlecase, but not their own uppercase.
39
Benjamin Peterson193152c2009-04-25 01:08:45 +000040- Issue #5283: Setting __class__ in __del__ caused a segfault.
41
Mark Dickinsonad476da2009-04-23 19:14:16 +000042- Issue #5816: complex(repr(z)) now recovers z exactly, even when
43 z involves nans, infs or negative zeros.
44
Mark Dickinson4a16e3a2009-04-23 19:15:48 +000045- Issue #3166: Make int -> float conversions correctly rounded.
Mark Dickinsonc6300392009-04-20 21:38:00 +000046
Mark Dickinsone6a076d2009-04-18 11:48:33 +000047- Issue #1869 (and many duplicates): make round(x, n) correctly
48 rounded for a float x, by using the decimal <-> binary conversions
49 from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now
50 consistently agrees with format(x, '.2f').
51
Benjamin Petersonae937c02009-04-18 20:54:08 +000052- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
53 some builtin types.
54
Eric Smith0923d1d2009-04-16 20:16:10 +000055- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'.
56
Eric Smith35e84722009-04-16 20:21:28 +000057- Issue #5515: str.format() type 'n' combined with commas and leading
58 zeros no longer gives odd results with ints and floats.
Eric Smith0923d1d2009-04-16 20:16:10 +000059
60- Implement PEP 378, Format Specifier for Thousands Separator, for
61 floats.
62
Mark Dickinson3370cce2009-04-17 22:40:53 +000063- The str function switches to exponential notation at
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000064 1e11, not 1e12. This avoids printing 13 significant digits in
65 situations where only 12 of them are correct. Example problem
66 value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a
67 long time.)
68
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000069- Issue #1580: On most platforms, use a 'short' float repr: for a
70 finite float x, repr(x) now outputs a string based on the shortest
71 sequence of decimal digits that rounds to x. Previous behaviour was
72 to output 17 significant digits and then strip trailing zeros.
Mark Dickinson3370cce2009-04-17 22:40:53 +000073 Another minor difference is that the new repr switches to
74 exponential notation at 1e16 instead of the previous 1e17; this
75 avoids misleading output in some cases.
Mark Dickinsonb08a53a2009-04-16 19:52:09 +000076
77 There's a new sys attribute sys.float_repr_style, which takes
78 the value 'short' to indicate that we're using short float repr,
79 and 'legacy' if the short float repr isn't available for one
80 reason or another.
81
82 The float repr change involves incorporating David Gay's 'perfect
83 rounding' code into the Python core (it's in Python/dtoa.c). As a
84 secondary consequence, all string-to-float and float-to-string
85 conversions (including all float formatting operations) will be
86 correctly rounded on these platforms.
87
88 See issue 1580 discussions for details of platforms for which
89 this change does not apply.
90
Benjamin Peterson2808d3c2009-04-15 21:34:27 +000091- Issue #5759: float() didn't call __float__ on str subclasses.
92
Georg Brandlabc38772009-04-12 15:51:51 +000093- The string.maketrans() function is deprecated; there is a new static method
94 maketrans() on the bytes and bytearray classes. This removes confusion about
95 the types string.maketrans() is supposed to work with, and mirrors the
96 methods available on the str class.
97
R. David Murraydc6da8a2009-04-09 22:16:43 +000098- Issue #2170: refactored xml.dom.minidom.normalize, increasing both
99 its clarity and its speed.
100
Matthias Klose091c7b12009-04-07 13:24:27 +0000101- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
102 to avoid compiler warnings.
103
Benjamin Peterson0b4915e2009-04-25 21:11:45 +0000104Installation
105------------
106
107- Issue #5756: Install idle and pydoc with a 3 suffix.
108
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000109Library
110-------
111
Antoine Pitroua9f48a02009-05-02 21:41:14 +0000112- Issue #5084: unpickling now interns the attribute names of pickled objects,
113 saving memory and avoiding growth in size of subsequent pickles. Proposal
114 and original patch by Jake McGuire.
115
Benjamin Petersonc6b607d2009-05-02 12:36:44 +0000116- The json module now works exclusively with str and not bytes.
117
Gregory P. Smithe54dff52009-05-01 22:13:48 +0000118- Issue #3959: The ipaddr module has been added to the standard library.
119 Contributed by Google.
120
Antoine Pitrou7fff0962009-05-01 21:09:44 +0000121- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
122 error when a named pipe is encountered, rather than blocking infinitely.
123
Raymond Hettinger1f0db402009-04-29 00:38:08 +0000124- Issue #5857: tokenize.tokenize() now returns named tuples.
125
Thomas Hellerc1edc2d2009-04-28 19:55:58 +0000126- Issue #4305: ctypes should now build again on mipsel-linux-gnu
127
Antoine Pitrou7a0fedf2009-04-27 22:31:40 +0000128- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the
129 string is already in normalized form, by performing a quick check beforehand.
130 Original patch by Rauli Ruohonen.
131
Antoine Pitrou57f3d932009-04-27 21:04:19 +0000132- Issue #5853: calling a function of the mimetypes module from several threads
133 at once could hit the recursion limit if the mimetypes database hadn't been
134 initialized before.
135
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000136- Issue #5854: Updated __all__ to include some missing names and remove some
137 names which should not be exported.
138
Thomas Heller34596a92009-04-24 20:50:00 +0000139- Issue #3102: All global symbols that the _ctypes extension defines
140 are now prefixed with 'Py' or '_ctypes'.
141
142- Issue #5041: ctypes does now allow pickling wide character.
143
Mark Dickinsond4d95f82009-04-24 14:06:19 +0000144- Issue #5812: For the two-argument form of the Fraction constructor,
145 Fraction(m, n), m and n are permitted to be arbitrary Rational
146 instances.
147
Mark Dickinsoncf63f2f2009-04-22 17:50:21 +0000148- Issue #5812: Fraction('1e6') is valid: more generally, any string
149 that's valid for float() is now valid for Fraction(), with the
150 exception of strings representing NaNs and infinities.
151
Antoine Pitroucf4c7492009-04-19 00:09:36 +0000152- Issue #5734: BufferedRWPair was poorly tested and had several glaring
153 bugs. Patch by Brian Quinlan.
154
R. David Murray9e94ddf2009-04-13 17:06:33 +0000155- Issue #1161031: fix readwrite select flag handling: POLLPRI now
156 results in a handle_expt_event call, not handle_read_event, and POLLERR
157 and POLLNVAL now call handle_close, not handle_expt_event. Also,
158 dispatcher now has an 'ignore_log_types' attribute for suppressing
159 log messages, which is set to 'warning' by default.
160
Matthias Klosea3d29e82009-04-07 13:13:10 +0000161- Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for
162 new arguments introduced in 2.5.
163
Walter Dörwald1b08b302009-04-25 14:13:56 +0000164- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
165 makeunicodedata.py and regenerated the Unicode database (This fixes
166 u'\u1d79'.lower() == '\x00').
167
Matthias Klose535336f2009-04-07 13:49:45 +0000168Extension Modules
169-----------------
170
Mark Dickinsonea835e72009-04-19 20:40:33 +0000171- Issue #5463: In struct module, remove deprecated float coercion
172 for integer type codes: struct.pack('L', 0.3) should now raise
173 an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed.
174 The version number has been bumped to 0.3.
175
Matthias Klose535336f2009-04-07 13:49:45 +0000176- Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built
177 using Berkley-DB.
178
Nick Coghlan47384702009-04-22 16:13:36 +0000179Tests
180-----
181
182- Issue #5354: New test support function import_fresh_module() makes
183 it easy to import both normal and optimised versions of modules.
184 test_heapq and test_warnings have been adjusted to use it, tests for
185 other modules with both C and Python implementations in the stdlib
186 can be adjusted to use it over time.
187
Walter Dörwald4ba80132009-04-25 12:48:43 +0000188- Issue #5837: Certain sequences of calls to set() and unset() for
189 support.EnvironmentVarGuard objects restored the environment variables
190 incorrectly on __exit__.
191
Benjamin Petersonbd35b032009-04-04 23:16:41 +0000192
Benjamin Petersond1735892009-03-07 18:46:21 +0000193What's New in Python 3.1 alpha 2?
194=================================
195
Benjamin Peterson88f14352009-04-04 21:06:52 +0000196*Release date: 2009-4-4*
Benjamin Petersond1735892009-03-07 18:46:21 +0000197
198Core and Builtins
199-----------------
Benjamin Petersone099b372009-04-04 17:09:35 +0000200
Eric Smith1e1d7d22009-04-03 22:25:33 +0000201- Implement PEP 378, Format Specifier for Thousands Separator, for
202 integers.
Benjamin Petersond1735892009-03-07 18:46:21 +0000203
Benjamin Peterson8f76b492009-04-03 22:22:42 +0000204- Issue #5666: Py_BuildValue's 'c' code should create byte strings.
205
Benjamin Peterson7fe98532009-04-02 00:33:55 +0000206- Issue #5499: The 'c' code for argument parsing functions now only accepts a
207 byte, and the 'C' code only accepts a unicode character.
208
Georg Brandl406b3d82009-04-11 21:24:37 +0000209- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
210 when hitting the recursion limit under certain circumstances.
211
Brett Cannon0759dd62009-04-01 18:13:07 +0000212- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
213
Georg Brandlab6f2f62009-03-31 04:16:10 +0000214- Fix a segfault when running test_exceptions with coverage, caused by
215 insufficient checks in accessors of Exception.__context__.
216
Guido van Rossum0ad59d42009-03-30 22:01:35 +0000217- Issue #5604: non-ASCII characters in module name passed to
218 imp.find_module() were converted to UTF-8 while the path is
219 converted to the default filesystem encoding, causing nonsense.
220
Benjamin Peterson09832742009-03-26 17:15:46 +0000221- Issue #5126: str.isprintable() returned False for space characters.
222
Ronald Oussorenfa1fcd12009-03-30 23:16:10 +0000223- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to
224 the end sys.path, for compatibility with the system install of Python.
225
Antoine Pitrou3a652b12009-03-23 18:52:06 +0000226- Issue #4688: Add a heuristic so that tuples and dicts containing only
227 untrackable objects are not tracked by the garbage collector. This can
228 reduce the size of collections and therefore the garbage collection overhead
229 on long-running programs, depending on their particular use of datatypes.
230
Mark Dickinson17e4fdd2009-03-23 18:44:57 +0000231- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to
232 improve its performance. Long divisions and remainder operations
233 are now between 50% and 150% faster.
234
Mark Dickinsonbd792642009-03-18 20:06:12 +0000235- Issue #4258: Make it possible to use base 2**30 instead of base
236 2**15 for the internal representation of integers, for performance
237 reasons. Base 2**30 is enabled by default on 64-bit machines. Add
238 --enable-big-digits option to configure, which overrides the
239 default. Add sys.int_info structseq to provide information about
240 the internal format.
241
Mark Dickinson081dfee2009-03-18 14:47:41 +0000242- Issue #4474: PyUnicode_FromWideChar now converts characters outside
243 the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4
244 and sizeof(Py_UNICODE) == 2.
245
Eric Smith8ec90442009-03-14 12:29:34 +0000246- Issue #5237: Allow auto-numbered fields in str.format(). For
247 example: '{} {}'.format(1, 2) == '1 2'.
248
Antoine Pitrou652e7072009-03-13 19:25:20 +0000249- Issue #5392: when a very low recursion limit was set, the interpreter would
250 abort with a fatal error after the recursion limit was hit twice.
251
Matthias Klose042f1332009-04-04 14:32:42 +0000252- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
253 short file names.
254
Benjamin Petersond1735892009-03-07 18:46:21 +0000255Library
256-------
257
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000258- Issue #2625: added missing items() call to the for loop in
R. David Murray548ac412009-04-02 19:44:43 +0000259 mailbox.MH.get_message().
260
Hye-Shik Chang944820b2009-04-02 10:33:16 +0000261- Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat
262 error substitutions from non-strict codec error callbacks in
263 incrementalencoder and StreamWriter.
264
Georg Brandl33c28812009-04-01 23:07:29 +0000265- Issue #5656: Fix the coverage reporting when running the test suite with
266 the -T argument.
267
Raymond Hettinger3f10a952009-04-01 19:05:50 +0000268- Issue #5647: MutableSet.__iand__() no longer mutates self during iteration.
269
Georg Brandl4ed72ac2009-04-01 04:28:33 +0000270- Issue #5624: Fix the _winreg module name still used in several modules.
271
Benjamin Petersona1b49012009-03-31 23:11:32 +0000272- Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer.
273
Jesse Nollera9314042009-03-31 22:36:44 +0000274- Issue #5619: Multiprocessing children disobey the debug flag and causes
275 popups on windows buildbots. Patch applied to work around this issue.
276
Jesse Noller32d68c22009-03-31 18:48:42 +0000277- Issue #5400: Added patch for multiprocessing on netbsd compilation/support
278
Hirokazu Yamamoto16caab02009-03-31 13:44:06 +0000279- Issue #5387: Fixed mmap.move crash by integer overflow.
280
Jesse Nollerf8d00852009-03-31 03:25:07 +0000281- Issue #5261: Patch multiprocessing's semaphore.c to support context
282 manager use: "with multiprocessing.Lock()" works now.
283
Brett Cannon7f6b4f82009-03-30 21:30:26 +0000284- Issue #5236: Change time.strptime() to only take strings. Didn't work with
285 bytes already but the failure was non-obvious.
286
Jesse Noller7af4ef82009-03-30 16:47:15 +0000287- Issue #5177: Multiprocessing's SocketListener class now uses
288 socket.SO_REUSEADDR on all connections so that the user no longer needs
289 to wait 120 seconds for the socket to expire.
290
Benjamin Peterson48e24782009-03-29 13:02:52 +0000291- Issue #5595: Fix UnboundedLocalError in ntpath.ismount().
292
Antoine Pitrou66994e12009-03-29 00:45:26 +0000293- Issue #1174606: Calling read() without arguments of an unbounded file
294 (typically /dev/zero under Unix) could crash the interpreter.
295
Benjamin Peterson59406a92009-03-26 17:10:29 +0000296- The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and
297 io.BufferedRandom have been deprecated for removal in Python 3.2.
298
Lars Gustäbel42e00912009-03-22 20:34:29 +0000299- Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop
300 forever on incomplete input. That caused tarfile.open() to hang when used
301 with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or
302 partial bzip2 compressed data.
303
Mark Dickinson79f52032009-03-17 23:12:51 +0000304- Issue #2110: Add support for thousands separator and 'n' type
305 specifier to Decimal.__format__
306
Mark Dickinson9c59fe02009-03-17 18:15:08 +0000307- Fix Decimal.__format__ bug that swapped the meanings of the '<' and
308 '>' alignment characters.
309
Antoine Pitrou0ae29cf2009-03-13 22:33:17 +0000310- The error detection code in FileIO.close() could fail to reflect the `errno`
311 value, and report it as -1 instead.
312
Antoine Pitroua28fcfd2009-03-13 23:42:55 +0000313- Issue #5016: FileIO.seekable() could return False if the file position
314 was negative when truncated to a C int. Patch by Victor Stinner.
315
Mark Dickinsonae681df2009-03-21 10:26:31 +0000316Extension Modules
317-----------------
318
Benjamin Petersone099b372009-04-04 17:09:35 +0000319- Issue #5391: mmap now deals exclusively with bytes.
320
Mark Dickinsonae681df2009-03-21 10:26:31 +0000321- Issue #5463: In struct module, remove deprecated overflow wrapping
322 when packing an integer: struct.pack('=L', -1) now raises
Mark Dickinsonb40b9472009-03-29 16:58:21 +0000323 struct.error instead of returning b'\xff\xff\xff\xff'. The
324 _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants
325 have been removed from the struct module.
Mark Dickinsonae681df2009-03-21 10:26:31 +0000326
Benjamin Petersond1735892009-03-07 18:46:21 +0000327
Benjamin Petersona58a6262009-03-07 16:34:40 +0000328What's New in Python 3.1 alpha 1
Barry Warsaw97f005d2008-12-03 16:46:14 +0000329================================
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000330
Benjamin Petersona58a6262009-03-07 16:34:40 +0000331*Release date: 2009-03-07*
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000332
333Core and Builtins
334-----------------
335
Benjamin Peterson4fa88fa2009-03-04 00:14:51 +0000336- The io module has been reimplemented in C for speed.
337
Raymond Hettingerb0d56af2009-03-03 10:52:49 +0000338- Give dict views an informative __repr__.
339
Eric Smith5e5c0db2009-02-20 14:25:03 +0000340- Issue #5247: Improve error message when unknown format codes are
341 used when using str.format() with str, int, and float arguments.
342
Hirokazu Yamamoto575d1332009-02-16 09:13:20 +0000343- Issue #5249: time.strftime returned malformed string when format string
344 contained non ascii character on windows.
345
Benjamin Petersonf5b52242009-03-02 23:31:26 +0000346- Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the
347 source has already been decoded into str.
348
Antoine Pitrou79eee6b2009-02-13 14:01:05 +0000349- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
350 rotating the object pointer by 4 bits to the right.
351
Mark Dickinson87ec0852009-02-09 17:15:59 +0000352- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs:
353 it now forces its argument to double before testing for infinity.
354
Benjamin Petersonee1ae7c2009-02-08 21:07:20 +0000355- Issue #5137: Make len() correctly raise a TypeError when a __len__ method
356 returns a non-number type.
357
Benjamin Peterson87618552009-02-08 15:00:52 +0000358- Issue #5182: Removed memoryview.__str__.
359
Mark Dickinsonc008a172009-02-01 13:59:22 +0000360- Issue #1717: Removed builtin cmp() function, dropped tp_compare
361 slot, the C API functions PyObject_Compare and PyUnicode_Compare and
Mark Dickinsone94c6792009-02-02 20:36:42 +0000362 the type definition cmpfunc. The tp_compare slot has been renamed
363 to tp_reserved, and is reserved for future usage.
Mark Dickinsonf02e0aa2009-02-01 12:13:56 +0000364
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000365- Issue #1242657: the __len__() and __length_hint__() calls in several tools
Raymond Hettingere8364232009-02-02 22:55:09 +0000366 were suppressing all exceptions. These include list() and bytearray().
367
Mark Dickinson1124e712009-01-28 21:25:58 +0000368- Issue #4707: round(x, n) now returns an integer if x is an integer.
369 Previously it returned a float.
370
Antoine Pitroub52ec782009-01-25 16:34:23 +0000371- Issue #4753: By enabling a configure option named '--with-computed-gotos'
372 on compilers that support it (notably: gcc, SunPro, icc), the bytecode
373 evaluation loop is compiled with a new dispatch mechanism which gives
374 speedups of up to 20%, depending on the system, on various benchmarks.
375
Antoine Pitrou81fabdb2009-01-22 10:11:36 +0000376- Issue #4874: Most builtin decoders now reject unicode input.
377
Mark Dickinson9ffc0202009-01-20 20:45:53 +0000378- Issue #4842: Don't allow trailing 'L' when constructing an integer
379 from a string.
380
Benjamin Peterson05e782f2009-01-19 15:15:02 +0000381- Issue #4991: os.fdopen now raises an OSError for invalid file descriptors.
382
Antoine Pitroue4bc7f62009-01-17 21:06:43 +0000383- Issue #4838: When a module is deallocated, free the memory backing the
384 optional module state data.
385
Mark Dickinson8055afd2009-01-17 10:04:45 +0000386- Issue #4910: Rename nb_long slot to nb_reserved, and change its
387 type to (void *).
388
Antoine Pitrou8d4e5052009-01-13 22:59:11 +0000389- Issue #4935: The overflow checking code in the expandtabs() method common
390 to str, bytes and bytearray could be optimized away by the compiler, letting
391 the interpreter segfault instead of raising an error.
392
Amaury Forgeot d'Arcf343e012009-01-12 23:58:21 +0000393- Issue #3720: Fix a crash when an iterator modifies its class and removes its
394 __next__ method.
395
Mark Dickinsone5e298f2009-01-12 20:49:19 +0000396- Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API
397 function no longer attempt to call the __long__ slot to convert an object
398 to an integer. Only the __int__ and __trunc__ slots are examined.
399
Martin v. Löwis7c2b66c2009-01-12 08:21:03 +0000400- Issue #4893: Use NT threading on CE.
401
Martin v. Löwisec59d042009-01-12 07:59:10 +0000402- Issue #4915: Port sysmodule to Windows CE.
403
Antoine Pitrouab868312009-01-10 15:40:25 +0000404- Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The
405 common cases are optimized thanks to a dedicated fast path and a moderate
406 amount of loop unrolling.
407
Antoine Pitrou14b78f52009-01-09 22:27:08 +0000408- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
409 collecting the oldest generation) so that allocating lots of objects without
410 destroying them does not show quadratic performance. Based on a proposal by
411 Martin von Löwis at
412 http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
413
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000414- Issue #4604: Some objects of the I/O library could still be used after
Antoine Pitrou8043cf82009-01-09 19:54:29 +0000415 having been closed (for instance, a read() call could return some
416 previously buffered data). Patch by Dmitry Vasiliev.
417
Antoine Pitrou05608432009-01-09 18:53:14 +0000418- Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
419 flag to work properly. Furthermore, when specifying -u, the text stdout
420 and stderr streams have line-by-line buffering enabled (the default being
421 to buffer arbitrary chunks of data).
422
Raymond Hettinger35631532009-01-09 03:58:09 +0000423- The internal table, _PyLong_DigitValue, is now an array of unsigned chars
424 instead of ints (reducing its size from 4 to 8 times thereby reducing
425 Python's overall memory).
426
Antoine Pitroud35cbf62009-01-06 19:02:24 +0000427- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
428 an existing .py counterpart, override the co_filename attributes of all
429 code objects if the original filename is obsolete (which can happen if the
430 file has been renamed, moved, or if it is accessed through different paths).
431 Patch by Ziga Seilnacht and Jean-Paul Calderone.
432
Antoine Pitrouc3b39242009-01-03 16:59:18 +0000433- Issue #4580: Fix slicing of memoryviews when the item size is greater than
434 one byte. Also fixes the meaning of len() so that it returns the number of
435 items, rather than the size in bytes.
436
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000437- Issue #4075: Use OutputDebugStringW in Py_FatalError.
438
Amaury Forgeot d'Arc374e2202009-01-01 23:05:36 +0000439- Issue #4747: When the terminal does not use utf-8, executing a script with
440 non-ascii characters in its name could fail with a "SyntaxError: None" error.
441
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000442- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
Hirokazu Yamamoto8ed9a802009-01-01 16:09:52 +0000443 file with `bytes' filename on Windows.
Hirokazu Yamamoto0f22d692009-01-01 16:03:45 +0000444
Antoine Pitrou7ddda782009-01-01 15:35:33 +0000445- Issue #3680: Reference cycles created through a dict, set or deque iterator
446 did not get collected.
447
Nick Coghlanf1f2f682008-12-30 07:29:12 +0000448- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
449 where the tp_hash and tp_dict slots are both NULL.
450
Georg Brandlccc47b62008-12-28 11:44:14 +0000451- Issue #4759: None is now allowed as the first argument of
452 bytearray.translate(). It was always allowed for bytes.translate().
453
Skip Montanaro80072cb2008-12-23 03:51:14 +0000454- Added test case to ensure attempts to read from a file opened for writing
455 fail.
456
Antoine Pitrou51f3ef92008-12-20 13:14:23 +0000457- Issue #3106: Speedup some comparisons (str/str and int/int).
458
Antoine Pitrouf289ae62008-12-18 11:06:25 +0000459- Issue #2183: Simplify and optimize bytecode for list, dict and set
460 comprehensions. Original patch for list comprehensions by Neal Norwitz.
461
Antoine Pitrou621601a2008-12-17 23:18:19 +0000462- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
463 print elapsed times, not only when some objects are uncollectable /
464 unreachable. Original patch by Neil Schemenauer.
465
Mark Dickinson54bc1ec2008-12-17 16:19:07 +0000466- Issue #3439: Add a bit_length method to int.
467
Mark Dickinsonda2706b2008-12-11 18:03:03 +0000468- Issue #2173: When getting device encoding, check that return value of
469 nl_langinfo is not the empty string. This was causing silent build
470 failures on OS X.
471
Jeffrey Yasskinb9083f32008-12-11 06:18:33 +0000472- Issue #4597: Fixed several opcodes that weren't always propagating
473 exceptions.
474
475- Issue #4589: Fixed exception handling when the __exit__ function of a
Amaury Forgeot d'Arc10b24e82008-12-10 23:49:33 +0000476 context manager returns a value that cannot be converted to a bool.
477
Mark Dickinsonfd24b322008-12-06 15:33:31 +0000478- Issue #4445: Replace "sizeof(PyBytesObject)" with
479 "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for
480 bytes instances. On a typical machine this saves 3 bytes of memory
481 (on average) per allocation of a bytes instance.
482
Christian Heimesa872de52008-12-05 08:26:55 +0000483- Issue #4533: File read operation was dreadfully slow due to a slowly
484 growing read buffer. Fixed by using the same growth rate algorithm as
485 Python 2.x.
486
Antoine Pitrou5504e892008-12-06 21:27:53 +0000487- Issue #4509: Various issues surrounding resize of bytearray objects to
488 which there are buffer exports (e.g. memoryview instances).
489
Georg Brandlf9734072008-12-07 15:30:06 +0000490- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
491 method on file objects with closefd=False. The file descriptor is still
492 kept open but the file object behaves like a closed file. The ``FileIO``
493 object also got a new readonly attribute ``closefd``.
Matthias Klose7e1b8fa2008-11-26 17:22:04 +0000494
Antoine Pitroubc420402008-12-07 20:14:49 +0000495- Issue #4569: Interpreter crash when mutating a memoryview with an item size
496 larger than 1.
497
Benjamin Peterson371ccfb2008-12-27 19:03:36 +0000498- Issue #4748: Lambda generators no longer return a value.
499
Gregory P. Smithccc5ae72009-03-02 05:21:55 +0000500- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
501
Walter Dörwaldc1651a02009-05-03 22:55:55 +0000502- Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call
503 PyUnicode_DecodeUTF8() once, remember the result and output it in a second
504 step. This avoids problems with counting UTF-8 bytes that ignores the effect
505 of using the replace error handler in PyUnicode_DecodeUTF8().
506
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000507Library
508-------
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000509
R. David Murrayb507d2e2009-04-29 15:34:32 +0000510- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
511
Tarek Ziadé81623822009-04-29 08:07:44 +0000512- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive
513 anymore.
514
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000515- Issue #5810: Fixed Distutils test_build_scripts so it uses
Tarek Ziadé939f9c82009-04-25 12:53:56 +0000516 sysconfig.get_config_vars.
517
Tarek Ziadé23336082009-04-25 12:39:56 +0000518- Issue #4951: Fixed failure in test_httpservers.
519
Thomas Hellerd3cfe992009-04-24 20:10:24 +0000520- Issue #5795: Fixed test_distutils failure on Debian ppc.
521
Tarek Ziadé822e1d42009-04-13 12:37:57 +0000522- Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries.
523
Georg Brandl1f9fa312009-04-27 16:42:58 +0000524- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
525 a value in SafeConfigParser.
526
Tarek Ziadéf396ecf2009-04-11 15:00:43 +0000527- Issue #5732: added a new command in Distutils: check.
528
Vinay Sajipad5fa2f2009-04-27 13:55:05 +0000529- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
Tarek Ziadéa6191802009-04-09 22:02:39 +0000530 platforms. Initial patch by Paul Moore.
531
Tarek Ziadéf6370502009-04-05 22:57:21 +0000532- Issue #5095: Added bdist_msi to the list of bdist supported formats.
533 Initial fix by Steven Bethard.
534
Tarek Ziadé889b0aa2009-04-05 21:49:36 +0000535- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
536 Initial fix by Wayne Davison.
537
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000538- Issue #5694: removed spurious test output in Distutils (test_clean).
Tarek Ziadéea261632009-04-05 18:33:34 +0000539
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000540- Issue #1326077: fix the formatting of SyntaxErrors by the traceback module.
Georg Brandl236f7972009-04-05 14:28:42 +0000541
Brett Cannonf47e84c2009-04-01 16:06:01 +0000542- Issue #1665206 (partially): Move imports in cgitb to the top of the module
543 instead of performing them in functions. Helps prevent import deadlocking in
544 threads.
545
R. David Murraye59482e2009-04-01 03:42:00 +0000546- Issue #2522: locale.format now checks its first argument to ensure it has
547 been passed only one pattern, avoiding mysterious errors where it appeared
548 that it was failing to do localization.
549
Tarek Ziadéb2e36f12009-03-31 22:37:55 +0000550- Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg
551 Brandl.
552
Antoine Pitrou350370c2009-03-14 00:13:13 +0000553- Issue #1222: locale.format() bug when the thousands separator is a space
554 character.
555
Tarek Ziadé516db942009-03-11 12:52:00 +0000556- Issue #5472: Fixed distutils.test_util tear down. Original patch by
557 Tim Golden.
558
Raymond Hettinger5bb0f0e2009-03-10 12:56:32 +0000559- collections.deque() objects now have a read-only attribute called maxlen.
560
Guilherme Polof45b4cc2009-03-07 02:19:14 +0000561- Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after
562 it is has been populated and properly configured in order to prevent
563 window flashing.
564
Guilherme Polo56f5be52009-03-07 01:54:57 +0000565- Issue #4792: Prevent a segfault in _tkinter by using the
566 guaranteed to be safe interp argument given to the PythonCmd in place of
567 the Tcl interpreter taken from a PythonCmd_ClientData.
568
569- Issue #5193: Guarantee that tkinter.Text.search returns a string.
570
Tarek Ziadé63b64c02009-03-07 00:51:53 +0000571- Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler.
572 Original patch by Akira Kitada.
573
Hirokazu Yamamoto54d0df62009-03-06 03:04:07 +0000574- Issue #5334: array.fromfile() failed to insert values when EOFError was raised.
575
Hirokazu Yamamoto8e722bc2009-03-05 14:33:01 +0000576- Issue #5385: Fixed mmap crash after resize failure on windows.
577
Hirokazu Yamamoto0c988172009-03-03 22:41:26 +0000578- Issue #5179: Fixed subprocess handle leak on failure on windows.
579
Raymond Hettinger2d32f632009-03-02 21:24:57 +0000580- PEP 372: Added collections.OrderedDict().
581
Raymond Hettingera4f52b12009-03-02 22:28:31 +0000582- The _asdict() for method for namedtuples now returns an OrderedDict().
583
Raymond Hettinger0663a1e2009-03-02 23:06:00 +0000584- configparser now defaults to using an ordered dictionary.
585
Benjamin Petersone0124bd2009-03-09 21:04:33 +0000586- Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
587 import guess_extension`` was used.
588
Hirokazu Yamamoto10c99372009-02-28 12:21:53 +0000589- Issue #1733986: Fixed mmap crash in accessing elements of second map object
590 with same tagname but larger size than first map. (Windows)
591
Hirokazu Yamamoto39c6dea2009-02-28 10:56:50 +0000592- Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
593 overrun.
594
Tarek Ziadéf0721222009-02-28 10:16:43 +0000595- Issue #1533164: Installed but not listed *.pyo was breaking Distutils
596 bdist_rpm command.
597
598- Issue #5378: added --quiet option to Distutils bdist_rpm command.
599
Tarek Ziadé38e3d512009-02-27 12:58:56 +0000600- Issue #5052: make Distutils compatible with 2.3 again.
601
Tarek Ziadé0f31e6d2009-02-25 22:31:38 +0000602- Issue #5316: Fixed buildbot failures introduced by multiple inheritance
603 in Distutils tests.
Barry Warsawd8ccd1c2008-11-21 15:13:37 +0000604
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000605- Issue #5287: Add exception handling around findCaller() call to help out
606 IronPython.
607
Hirokazu Yamamoto0654ccd2009-02-18 16:38:00 +0000608- Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0,
609 The file was resized to wrong size.
610
611- Issue #5292: Fixed mmap crash on its boundary access m[len(m)].
612
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000613- Issue #2279: distutils.sdist.add_defaults now add files
Tarek Ziadé0d0506e2009-02-16 21:49:12 +0000614 from the package_data and the data_files metadata.
615
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000616- Issue #5257: refactored all tests in distutils, so they use
Tarek Ziadéc1375d52009-02-14 14:35:51 +0000617 support.TempdirManager, to avoid writing in the tests directory.
618
Tarek Ziadé68c50952009-02-13 23:04:17 +0000619- Issue #4524: distutils build_script command failed with --with-suffix=3.
620 Initial patch by Amaury Forgeot d'Arc.
621
Tarek Ziadé811d6242009-02-13 22:26:15 +0000622- Issue #2461: added tests for distutils.util
623
Mark Dickinsonc28ad272009-02-12 17:58:36 +0000624- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
625 which inherited from numbers.py which did not have __slots__ defined. The
626 numbers hierarchy now has its own __slots__ declarations.
627
Antoine Pitroub353c122009-02-11 00:39:14 +0000628- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
629 encoding.
630
Thomas Heller465c8022009-02-10 18:59:04 +0000631- Issue #5203: Fixed ctypes segfaults when passing a unicode string to a
632 function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false).
633
Tarek Ziadé7d5e9872009-02-10 12:36:33 +0000634- Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored
635 under NT and OS2. Patch by Philip Jenvey.
636
Brett Cannonbefb14f2009-02-10 02:10:16 +0000637- Issue #5128: Make compileall properly inspect bytecode to determine if needs
638 to be recreated. This avoids a timing hole thanks to the old reliance on the
639 ctime of the files involved.
640
Guilherme Polob681df42009-02-09 22:33:59 +0000641- Issue #5122: Synchronize tk load failure check to prevent a potential
642 deadlock.
643
Benjamin Petersona86f2c02009-02-10 02:41:10 +0000644- Issue #1818: collections.namedtuple() now supports a keyword argument
645 'rename' which lets invalid fieldnames be automatically converted to
646 positional names in the form, _1, _2, ...
647
Guilherme Poloae098992009-02-09 16:44:24 +0000648- Issue #4890: Handle empty text search pattern in Tkinter.Text.search.
649
Nick Coghlan9a1d6e32009-02-08 03:37:27 +0000650- Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a
651 public documented method ``ZipImporter.get_filename()``.
652
Nick Coghlan3f48ae32009-02-08 01:58:26 +0000653- Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support
654 the execution of packages by looking for and executing a ``__main__``
655 submodule when a package name is supplied. Initial patch by Andi
656 Vajda.
657
Guilherme Polo491aee22009-02-06 23:16:11 +0000658- Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will
659 not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in
660 Tkapp_Call when calling from a thread different than the one that created
661 the Tcl interpreter. Patch by Robert Hancock.
662
Eric Smith0e5b5622009-02-06 01:32:42 +0000663- Issue #4285: Change sys.version_info to be a named tuple. Patch by
664 Ross Light.
665
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000666- Issue #1520877: Now distutils.sysconfig reads $AR from the
Tarek Ziadéd3409de2009-02-06 01:18:36 +0000667 environment/Makefile. Patch by Douglas Greiman.
668
Tarek Ziadé70a74eb2009-02-06 00:38:35 +0000669- Issue #1276768: The verbose option was not used in the code of
670 distutils.file_util and distutils.dir_util.
671
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000672- Issue #5132: Fixed trouble building extensions under Solaris with
Tarek Ziadé5874ef12009-02-05 22:56:14 +0000673 --enabled-shared activated. Initial patch by Dave Peterson.
674
Guilherme Polo7f423952009-02-02 21:17:09 +0000675- Issue #1581476: Always use the Tcl global namespace when calling into Tcl.
676
Raymond Hettinger85602262009-02-03 04:19:10 +0000677- The shelve module now defaults to pickle protocol 3.
678
Brett Cannone61426e2009-01-30 01:31:34 +0000679- Fix a bug in the trace module where a bytes object from co_lnotab had its
680 items being passed through ord().
681
Antoine Pitrou0dcc3cd2009-01-29 20:26:59 +0000682- Issue #2047: shutil.move() could believe that its destination path was
683 inside its source path if it began with the same letters (e.g. "src" vs.
684 "src.new").
685
Guilherme Polo5f238482009-01-28 14:41:10 +0000686- Added the ttk module. See issue #2983: Ttk support for Tkinter.
687
Raymond Hettinger89e12962009-01-26 02:09:03 +0000688- Removed isSequenceType(), isMappingType, and isNumberType() from the
689 operator module; use the abstract base classes instead. Also removed
690 the repeat() function; use mul() instead.
691
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000692- Issue #5021: doctest.testfile() did not create __name__ and
Raymond Hettinger0f055172009-01-27 10:06:09 +0000693 collections.namedtuple() relied on __name__ being defined.
694
695- Backport importlib from Python 3.1. Only the import_module() function has
696 been backported to help facilitate transitions from 2.7 to 3.1.
697
Tarek Ziadé0302cf52009-01-26 17:23:20 +0000698- Issue #1885: distutils. When running sdist with --formats=tar,gztar
699 the tar file was overriden by the gztar one.
700
Tarek Ziadé4d4456f2009-01-25 18:27:45 +0000701- Issue #4863: distutils.mwerkscompiler has been removed.
702
Raymond Hettingerd07d9392009-01-27 04:20:44 +0000703- Added a new itertools functions: combinations_with_replacement()
704 and compress().
Raymond Hettinger6b3b0fc2009-01-26 02:56:58 +0000705
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000706- Issue #5032: added a step argument to itertools.count() and
Raymond Hettinger30729212009-02-12 06:28:27 +0000707 allowed non-integer arguments.
708
Jesse Noller41faa542009-01-25 03:45:53 +0000709- Fix and properly document the multiprocessing module's logging
710 support, expose the internal levels and provide proper usage
711 examples.
712
Mark Dickinsoncddcf442009-01-24 21:46:33 +0000713- Issue #1672332: fix unpickling of subnormal floats, which was
714 producing a ValueError on some platforms.
715
Martin v. Löwisacbf4612009-01-24 16:19:45 +0000716- Issue #3881: Help Tcl to load even when started through the
717 unreadable local symlink to "Program Files" on Vista.
718
Martin v. Löwis59e47792009-01-24 14:10:07 +0000719- Issue #4710: Extract directories properly in the zipfile module;
720 allow adding directories to a zipfile.
721
Vinay Sajipb672b6d2009-02-19 12:36:11 +0000722- Issue #3807: _multiprocessing build fails when configure is passed
Jesse Noller6fd47e22009-01-23 14:09:08 +0000723 --without-threads argument. When this occurs, _multiprocessing will
724 be disabled, and not compiled.
725
Antoine Pitrou08838b62009-01-21 00:55:13 +0000726- Issue #5008: When a file is opened in append mode with the new IO library,
727 do an explicit seek to the end of file (so that e.g. tell() returns the
728 file size rather than 0). This is consistent with the behaviour of the
729 traditional 2.x file object.
730
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000731- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
732 parameter was set.
733
Mark Dickinson8dd05142009-01-20 20:43:58 +0000734- Issue #4842: Always append a trailing 'L' when pickling longs using
735 pickle protocol 0. When reading, the 'L' is optional.
736
Brett Cannonafccd632009-01-20 02:21:27 +0000737- Add the importlib package.
738
Jesse Noller9a0fc972009-01-18 21:12:58 +0000739- Issue #4301: Patch the logging module to add processName support, remove
740 _check_logger_class from multiprocessing.
741
Jesse Noller1cbb17a2009-01-18 19:45:18 +0000742- Issue #3325: Remove python2.x try: except: imports for old cPickle from
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000743 multiprocessing.
Jesse Nollerf70a5382009-01-18 19:44:02 +0000744
Benjamin Peterson9953a8d2009-01-17 04:15:01 +0000745- Issue #4959: inspect.formatargspec now works for keyword only arguments
746 without defaults.
747
Jesse Noller6214edd2009-01-19 16:23:53 +0000748- Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks
749 for *nix machines for negative handles and large int handles. Without this check
750 it is possible to segfault the interpreter.
751
Jesse Nollerb0516a62009-01-18 03:11:38 +0000752- Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue
753 in sharedctypes.py.
754
755- Issue #1225107: inspect.isclass() returned True for instances with a custom
756 __getattr__.
757
Gregory P. Smithde3369f2009-01-12 04:50:11 +0000758- Issue #3826 and #4791: The socket module now closes the underlying socket
759 appropriately when it is being used via socket.makefile() objects
760 rather than delaying the close by waiting for garbage collection to do it.
761
Raymond Hettingerb8baf632009-01-14 02:20:07 +0000762- Issue #1696199: Add collections.Counter() for rapid and convenient
763 counting.
764
Antoine Pitrou308705e2009-01-10 16:22:51 +0000765- Issue #3860: GzipFile and BZ2File now support the context manager protocol.
766
Thomas Heller5e4e4272009-01-08 09:34:20 +0000767- Issue #4867: Fixed a crash in ctypes when passing a string to a
768 function without defining argtypes.
769
Antoine Pitrou42db3ef2009-01-04 21:37:59 +0000770- Issue #4272: Add an optional argument to the GzipFile constructor to override
771 the timestamp in the gzip stream. The default value remains the current time.
772 The information can be used by e.g. gunzip when decompressing. Patch by
773 Jacques Frechet.
774
Mark Dickinson315a20a2009-01-04 21:34:18 +0000775- Restore Python 2.3 compatibility for decimal.py.
776
Guilherme Polo3f5f8222009-01-03 22:00:39 +0000777- Issue #3638: Remove functions from _tkinter module level that depend on
778 TkappObject to work with multiple threads.
779
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000780- Issue #4718: Adapt the wsgiref package so that it actually works with
781 Python 3.x, in accordance with the `official amendments of the spec
Antoine Pitrou38a66ad2009-01-03 18:41:49 +0000782 <http://www.wsgi.org/wsgi/Amendments_1.0>`_.
783
Raymond Hettinger771ed762009-01-03 19:20:32 +0000784- Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float()
785 to the decimal module.
786
Georg Brandl3a9b0622009-01-03 22:07:57 +0000787- Fractions.from_float() no longer loses precision for integers too big to
788 cast as floats.
789
Mark Dickinsonf9236412009-01-02 23:23:21 +0000790- Issue #4812: add missing underscore prefix to some internal-use-only
791 constants in the decimal module. (Dec_0 becomes _Dec_0, etc.)
792
Georg Brandl1cdd83c2009-04-05 20:24:29 +0000793- Issue #4790: The nsmallest() and nlargest() functions in the heapq module
Georg Brandl3a9b0622009-01-03 22:07:57 +0000794 did unnecessary work in the common case where no key function was specified.
795
Georg Brandlb1441c72009-01-03 22:33:39 +0000796- Issue #4795: inspect.isgeneratorfunction() returns False instead of None when
797 the function is not a generator.
798
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000799- Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case
800 no MSVC compiler is found under Windows. Original patch by Philip Jenvey.
Tarek Ziadé9df8ce32008-12-30 23:09:20 +0000801
Vinay Sajip6268cbc2009-01-21 00:19:28 +0000802- Issue #4646: distutils was choking on empty options arg in the setup
Tarek Ziadé4450dcf2008-12-29 22:38:38 +0000803 function. Original patch by Thomas Heller.
804
Martin v. Löwis1f1620e2008-12-29 16:27:13 +0000805- Issue #3767: Convert Tk object to string in tkColorChooser.
806
Martin v. Löwise354d782008-12-29 16:03:04 +0000807- Issue #3248: Allow placing ScrolledText in a PanedWindow.
808
Antoine Pitrou5acd41e2008-12-28 14:29:00 +0000809- Issue #4444: Allow assertRaises() to be used as a context handler, so that
810 the code under test can be written inline if more practical.
811
Georg Brandldb7b6b92009-01-01 15:53:14 +0000812- Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@')
813 works as expected in the interactive environment.
814
Antoine Pitroudb5fe662008-12-27 15:50:40 +0000815- Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by
816 Gabriel Genellina.
817
Antoine Pitrou180a3362008-12-14 16:36:46 +0000818- Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char
819 boundary.
820
Nick Coghlanf088e5e2008-12-14 11:50:48 +0000821- Issue #4223: inspect.getsource() will now correctly display source code
822 for packages loaded via zipimport (or any other conformant PEP 302
823 loader). Original patch by Alexander Belopolsky.
824
825- Issue #4201: pdb can now access and display source code loaded via
826 zipimport (or any other conformant PEP 302 loader). Original patch by
827 Alexander Belopolsky.
828
829- Issue #4197: doctests in modules loaded via zipimport (or any other PEP
830 302 conformant loader) will now work correctly in most cases (they
831 are still subject to the constraints that exist for all code running
832 from inside a module loaded via a PEP 302 loader and attempting to
833 perform IO operations based on __file__). Original patch by
834 Alexander Belopolsky.
835
836- Issues #4082 and #4512: Add runpy support to zipimport in a manner that
837 allows backporting to maintenance branches. Original patch by
838 Alexander Belopolsky.
839
Antoine Pitrou7c59bc62008-12-13 23:20:54 +0000840- Issue #4163: textwrap module: allow word splitting on a hyphen preceded by
841 a non-ASCII letter.
842
Lars Gustäbel43fcf3a2008-12-12 14:58:38 +0000843- Issue #4616: TarFile.utime(): Restore directory times on Windows.
844
Benjamin Peterson433f32c2008-12-12 01:25:05 +0000845- Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the
846 codec cannot be found. This is for compatibility with the builtin behavior.
847
Facundo Batista708d5812008-12-11 04:20:07 +0000848- Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to
849 give correct results in the case where one argument is a quiet NaN
850 and the other is a finite number that requires rounding.
851
Skip Montanaroc1ce2862008-12-06 17:25:02 +0000852- Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat
853 libs.
854
Georg Brandlf9734072008-12-07 15:30:06 +0000855- Added the subprocess.check_call_output() convenience function to get output
856 from a subprocess on success or raise an exception on error.
857
858- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
859 support unusual filenames (such as those containing semi-colons) in
860 Content-Disposition headers.
861
862- Issue #4384: Added logging integration with warnings module using
863 captureWarnings(). This change includes a NullHandler which does nothing;
864 it will be of use to library developers who want to avoid the "No handlers
865 could be found for logger XXX" message which can appear if the library user
866 doesn't configure logging.
867
868- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an
869 exception.
870
Georg Brandleee31162008-12-07 15:15:22 +0000871- Issue #4529: fix the parser module's validation of try-except-finally
872 statements.
873
874- Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument,
875 not a malformed option.
876
877- Added the subprocess.check_output() convenience function to get output
878 from a subprocess on success or raise an exception on error.
879
Amaury Forgeot d'Arcbc9d4742008-12-05 01:40:43 +0000880- Issue #4542: On Windows, binascii.crc32 still accepted str as binary input;
881 the corresponding tests now pass.
882
Amaury Forgeot d'Arcbc2ce572008-12-05 01:02:21 +0000883- Issue #4537: webbrowser.UnixBrowser would fail to open the browser because
884 it was calling the wrong open() function.
885
Fred Drake9a0a65b2008-12-04 19:24:50 +0000886- Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to
887 support unusual filenames (such as those containing semi-colons) in
888 Content-Disposition headers.
889
Matthias Klose2c7e3ee2009-01-10 17:08:25 +0000890- Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on
891 biarch systems. Try to rely on ldconfig only, without using objdump and gcc.
892
Benjamin Peterson5c6d7872009-02-06 02:40:07 +0000893- Issue #5104: The socket module now raises OverflowError when 16-bit port and
894 protocol numbers are supplied outside the allowed 0-65536 range on bind()
895 and getservbyport().
896
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000897Tools/Demos
898-----------
899
Antoine Pitrou8a681222009-02-07 17:13:31 +0000900- Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1,
901 and make it 2.6-compatible.
902
Guilherme Poloa7d27972009-01-28 16:06:51 +0000903- Ttk demos added in Demo/tkinter/ttk/
904
Antoine Pitrou2a013ea2008-12-27 20:39:28 +0000905- Issue #4677: add two list comprehension tests to pybench.
906
Georg Brandlb1441c72009-01-03 22:33:39 +0000907
908Build
909-----
910
Antoine Pitrou8966c992009-05-01 21:18:27 +0000911- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
912 linker, rather than always exit successfully. Patch by Floris Bruynooghe.
913
Matthias Klose55708cc2009-04-30 08:06:49 +0000914- Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify
915 the order that backends for the dbm extension are checked.
916
Matthias Klose906785c2009-02-22 23:18:38 +0000917- Link the shared python library with $(MODLIBS).
918
Martin v. Löwis11f72102009-02-10 13:13:30 +0000919- Issue #5134: Silence compiler warnings when compiling sqlite with VC++.
920
Martin v. Löwisbc186a82009-02-02 15:32:22 +0000921- Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows.
922
Martin v. Löwise97637d2009-01-11 09:45:11 +0000923- Issue #4895: Use _strdup on Windows CE.
924
Georg Brandlb1441c72009-01-03 22:33:39 +0000925- Issue #4472: "configure --enable-shared" now works on OSX
926
927- Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds.
928
929- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs".
930
931- Issue #4289: Remove Cancel button from AdvancedDlg.
932
933- Issue #1656675: Register a drop handler for .py* files on Windows.
934
935- Issue #4120: Exclude manifest from extension modules in VS2008.
936
937- Issue #4091: Install pythonxy.dll in system32 again.
938
939- Issue #4018: Disable "for me" installations on Vista.
940
941- Issue #3758: Add ``patchcheck`` build target to .PHONY.
942
943- Issue #4204: Fixed module build errors on FreeBSD 4.
944
945
946C-API
947-----
948
Mark Dickinson21776072009-02-10 16:13:25 +0000949- Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError
950 for negative arguments. Previously, it raised TypeError.
951
Georg Brandlb1441c72009-01-03 22:33:39 +0000952- Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'.
953
954- Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when
955 the GIL is released, or owned by another thread.
956
957- Issue #4122: On Windows, fix a compilation error when using the
958 Py_UNICODE_ISSPACE macro in an extension module.
959
960
Mark Dickinsone675f082008-12-11 21:56:00 +0000961Extension Modules
962-----------------
963
Gregory P. Smith365a1862009-02-12 07:35:29 +0000964- Issue #3745: Fix hashlib to always reject unicode and non buffer-api
965 supporting objects as input no matter how it was compiled (built in
966 implementations or external openssl library).
967
Mark Dickinson29500f62009-01-15 15:36:10 +0000968- Issue #4397: Fix occasional test_socket failure on OS X.
969
Martin v. Löwisa9b54c72009-01-11 09:30:50 +0000970- Issue #4279: Fix build of parsermodule under Cygwin.
971
Antoine Pitroubcd5cbe2009-01-08 21:17:16 +0000972- Issue #4751: hashlib now releases the GIL when hashing large buffers
973 (with a hardwired threshold of 2048 bytes), allowing better parallelization
974 on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner.
975
Martin v. Löwis5c88d812009-01-02 20:47:48 +0000976- Issue #4051: Prevent conflict of UNICODE macros in cPickle.
977
Antoine Pitrou31f30b12009-01-02 17:34:35 +0000978- Issue #4738: Each zlib object now has a separate lock, allowing to compress
979 or decompress several streams at once on multi-CPU systems. Also, the GIL
980 is now released when computing the CRC of a large buffer. Patch by ebfe.
981
Georg Brandlb1441c72009-01-03 22:33:39 +0000982- Issue #4228: Pack negative values the same way as 2.4 in struct's L format.
983
Martin v. Löwis05bfe1f2008-12-29 18:21:47 +0000984- Issue #1040026: Fix os.times result on systems where HZ is incorrect.
985
Mark Dickinsone675f082008-12-11 21:56:00 +0000986- Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris,
987 OpenBSD.
Amaury Forgeot d'Arcefae8c42008-11-21 23:08:09 +0000988
Antoine Pitrou3ad3a0d2008-12-18 17:08:32 +0000989- Issue #4583: array.array would not always prohibit resizing when a buffer
990 has been exported, resulting in an interpreter crash when accessing the
991 buffer.
992
Martin v. Löwis841edad2008-11-30 10:36:49 +0000993
Jack Diederiche0cbd692009-04-01 04:27:09 +0000994- Issue #5228: Make functools.partial objects can now be pickled.
995
Guilherme Polo9de29af2009-01-28 20:40:48 +0000996Tests
997-----
998
R. David Murraya21e4ca2009-03-31 23:16:50 +0000999- regrtest no longer treats ImportError as equivalent to SkipTest. Imports
Vinay Sajipad5fa2f2009-04-27 13:55:05 +00001000 that should cause a test to be skipped are now done using import_module
R. David Murraya21e4ca2009-03-31 23:16:50 +00001001 from test support, which does the conversion.
1002
Guilherme Polo9de29af2009-01-28 20:40:48 +00001003- Issue #5083: New 'gui' resource for regrtest.
1004
1005
Brett Cannon7317c1e2008-11-25 19:19:17 +00001006Docs
1007----
1008
Georg Brandl52b92cc2008-05-25 09:43:03 +00001009
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001010**(For information about older versions, consult the HISTORY file.)**