blob: f17e758aa3735e384053b54e04e698a4a9e57906 [file] [log] [blame]
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001+++++++++++
2Python News
3+++++++++++
4
Anthony Baxterb0c66302004-11-04 05:23:17 +00005(editors: check NEWS.help for information about editing NEWS using ReST.)
6
Guido van Rossumf0af3e32008-10-02 18:55:37 +00007What's New in Python 3.0 beta 5
8===============================
9
10[Note: due to the number of unresolved issues we're going back to beta
11 releases for a while.]
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +000012
13*Release date: XX-XXX-2008*
14
15Core and Builtins
16-----------------
17
Christian Heimesecc42a22008-11-05 19:30:32 +000018- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
19 method on file objects with closefd=False. The file descriptor is still
20 kept open but the file object behaves like a closed file. The ``FileIO``
21 object also got a new readonly attribute ``closefd``.
22
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000023- Issue #3626: On cygwin, starting python with a non-existent script name
24 would not display anything if the file name is only 1 character long.
25
Amaury Forgeot d'Arc424b4812008-10-30 22:25:31 +000026- Issue #4176: Fixed a crash when pickling an object which ``__reduce__``
27 method does not return iterators for the 4th and 5th items.
28
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000029- Issue #3723: Fixed initialization of subinterpreters.
Christian Heimes6a27efa2008-10-30 21:48:26 +000030
Christian Heimes5833a2f2008-10-30 21:40:04 +000031- Issue #4213: The file system encoding is now normalized by the
32 codec subsystem, for example UTF-8 is turned into utf-8.
33
Christian Heimes9c94ba42008-10-30 21:34:02 +000034- Issue #4200: Changed the atexit module to store its state in its
35 PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters.
36
Christian Heimesfec925b2008-10-30 21:22:55 +000037- Issue #4237: io.FileIO() was raising invalid warnings caused by
38 insufficient initialization of PyFileIOObject struct members.
39
Amaury Forgeot d'Arcf43ee812008-10-30 20:58:42 +000040- Issue #4170: Pickling a collections.defaultdict object would crash the
41 interpreter.
42
Benjamin Peterson08a8f5f2008-10-19 14:15:00 +000043- Issue #4146: Compilation on OpenBSD has been restored.
44
Brett Cannonda780432008-10-17 03:38:50 +000045- Issue #3574: compile() incorrectly handled source code encoded as Latin-1.
46
Amaury Forgeot d'Arccf8016a2008-10-09 23:37:48 +000047- Issues #2384 and #3975: Tracebacks were not correctly printed when the
48 source file contains a ``coding:`` header: the wrong line was displayed, and
49 the encoding was not respected.
50
Martin v. Löwis4e0630c2008-10-07 13:16:28 +000051- Issue #3740: Null-initialize module state.
52
Benjamin Peterson60320cb2008-09-26 21:49:22 +000053- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object.
54
Amaury Forgeot d'Arcd0db98f2008-09-21 21:49:01 +000055- Issue #1688: On Windows, the input() prompt was not correctly displayed if it
56 contains non-ascii characters.
57
Martin v. Löwis6fea2332008-09-25 04:15:27 +000058- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
59
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +000060Library
61-------
62
Amaury Forgeot d'Arc87eee632008-10-17 20:15:53 +000063- Issue #3664: The pickle module could segfault if a subclass of Pickler fails
64 to call the base __init__ method.
65
66- Issue #3725: telnetlib now works completely in bytes.
Benjamin Peterson3de7fb82008-10-15 20:54:24 +000067
Martin v. Löwis33b64502008-10-15 05:58:17 +000068- Issue #4072: Restore build_py_2to3.
69
Martin v. Löwisd8506df2008-10-06 15:19:21 +000070- Issue #4014: Don't claim that Python has an Alpha release status, in addition
71 to claiming it is Mature.
72
Martin v. Löwis04dc25c2008-10-03 16:09:28 +000073- Issue #3187: Add sys.setfilesystemencoding.
74
Guido van Rossumf0af3e32008-10-02 18:55:37 +000075- Issue #3187: Better support for "undecodable" filenames. Code by Victor
76 Stinner, with small tweaks by GvR.
77
Martin v. Löwis601149b2008-09-29 22:19:08 +000078- Issue #3965: Allow repeated calls to turtle.Screen, by making it a
79 true singleton object.
80
Benjamin Peterson3a53fbb2008-09-27 22:04:16 +000081- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers.
82
Amaury Forgeot d'Arcb5cf3012008-09-25 22:27:43 +000083- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly
84 raise a TypeError: "'tuple' object is not callable" instead of the expected
85 dbm.error.
86
Martin v. Löwis60ebb8b2008-09-21 07:32:10 +000087- Bug #3884: Make the turtle module toplevel again.
88
Thomas Heller1308c262008-09-24 19:01:29 +000089- Issue #3547: Fixed ctypes structures bitfields of varying integer
90 sizes.
91
Gerhard Häring6117f422008-09-22 06:04:51 +000092Extension Modules
93-----------------
94
95- Issue #3659: Subclasses of str didn't work as SQL parameters.
96
Martin v. Löwisf63921f2008-10-13 11:30:30 +000097Build
98-----
99
Martin v. Löwisc820eaf2008-10-17 13:47:20 +0000100- Issue #4091: Install pythonxy.dll in system32 again.
101
Martin v. Löwisf63921f2008-10-13 11:30:30 +0000102- Issue #4018: Disable "for me" installations on Vista.
103
Martin v. Löwisb37509b2008-11-04 20:45:29 +0000104- Issue #4204: Fixed module build errors on FreeBSD 4.
105
Martin v. Löwis33b64502008-10-15 05:58:17 +0000106Tools/Demos
107-----------
108
Martin v. Löwis869bad92008-10-17 15:54:44 +0000109- Issue #3717: Fix Demo/embed/demo.c.
110
Martin v. Löwis33b64502008-10-15 05:58:17 +0000111- Issue #4072: Add a distutils demo for build_py_2to3.
112
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +0000113
Barry Warsaw8509df72008-08-21 03:02:47 +0000114What's New in Python 3.0 release candidate 1
115============================================
116
Barry Warsawb8854802008-09-18 03:00:28 +0000117*Release date: 17-Sep-2008*
Barry Warsaw8509df72008-08-21 03:02:47 +0000118
119Core and Builtins
120-----------------
121
Benjamin Peterson5e19e442008-09-10 21:47:03 +0000122- Issue #3827: memoryview lost its size attribute in favor of using len(view).
123
Hirokazu Yamamoto167b12b2008-09-09 14:01:25 +0000124- Issue #3813: could not lanch python.exe via symbolic link on cygwin.
125
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000126- Issue #3705: fix crash when given a non-ascii value on the command line for
Amaury Forgeot d'Arc8530e852008-09-09 07:28:22 +0000127 the "-c" and "-m" parameters. Now the behaviour is as expected under Linux,
128 although under Windows it fails at a later point.
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000129
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000130- Issue #3279: Importing site at interpreter was failing silently because the
131 site module uses the open builtin which was not initialized at the time.
132
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000133- Issue #3660: Corrected a reference leak in str.encode() when the encoder
134 does not return a bytes object.
135
136- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle
Amaury Forgeot d'Arc1b933ed2008-09-04 22:34:09 +0000137 error conditions.
138
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000139- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being
Brett Cannon8a9583e2008-09-04 05:04:25 +0000140 tokenized by either a file path or file pointer for the benefit of
141 PyTokenizer_FindEncoding().
142
Antoine Pitroufff95302008-09-03 18:58:51 +0000143- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On
144 these systems, the mbstowcs() function is slightly buggy and must be
145 replaced with strlen() for the purpose of counting of number of wide
146 characters needed to represent the multi-byte character string.
147
Antoine Pitrou658fad82008-09-03 18:34:34 +0000148- Issue #3697: "Fatal Python error: Cannot recover from stack overflow"
149 could be easily encountered under Windows in debug mode when exercising
150 the recursion limit checking code, due to bogus handling of recursion
151 limit when USE_STACKCHEK was enabled.
152
Brett Cannon54bd41d2008-09-02 04:01:42 +0000153- Issue 3639: The _warnings module could segfault the interpreter when
154 unexpected types were passed in as arguments.
155
Antoine Pitrouc6b09eb2008-09-01 15:10:14 +0000156- Issue #3712: The memoryview object had a reference leak and didn't support
157 cyclic garbage collection.
158
Antoine Pitrouf71995782008-08-29 18:37:05 +0000159- Issue #3668: Fix a memory leak with the "s*" argument parser in
160 PyArg_ParseTuple and friends, which occurred when the argument for "s*"
161 was correctly parsed but parsing of subsequent arguments failed.
162
Amaury Forgeot d'Arcdb26f7c2008-08-29 07:13:32 +0000163- Issue #3611: An exception __context__ could be cleared in a complex pattern
164 involving a __del__ method re-raising an exception.
165
Antoine Pitrouec569b72008-08-26 22:40:48 +0000166- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to
167 match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__
168 mechanism. In the process, fix a bug where isinstance() and issubclass(),
169 when given a tuple of classes as second argument, were looking up
170 __instancecheck__ / __subclasscheck__ on the tuple rather than on each
171 type object.
172
Antoine Pitroue2dffc02008-08-26 22:02:58 +0000173- Issue #3663: Py_None was decref'd when printing SyntaxErrors.
174
Benjamin Peterson9edd2bd2008-08-27 00:31:37 +0000175- Issue #3651: Fix various memory leaks when using the buffer
176 interface, or when the "s#" code of PyArg_ParseTuple is given a
177 bytes object.
178
Neal Norwitz6ae2eb22008-08-24 23:50:08 +0000179- Issue #3657: Fix uninitialized memory read when pickling longs.
180 Found by valgrind.
181
Neal Norwitz3ce5d922008-08-24 07:08:55 +0000182- Apply security patches from Apple.
183
Neal Norwitz2f99b242008-08-24 05:48:10 +0000184- Fix crashes on memory allocation failure found with failmalloc.
185
186- Fix memory leaks found with valgrind and update suppressions file.
187
188- Fix compiler warnings in opt mode which would lead to invalid memory reads.
189
190- Fix problem using wrong name in decimal module reported by pychecker.
191
Amaury Forgeot d'Arc20443f32008-08-22 22:05:20 +0000192- Issue #3650: Fixed a reference leak in bytes.split('x').
193
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000194- bytes(o) now tries to use o.__bytes__() before using fallbacks.
195
Gregory P. Smith207f2112008-09-07 06:29:10 +0000196- Issue #1204: The configure script now tests for additional libraries
197 that may be required when linking against readline. This fixes issues
198 with x86_64 builds on some platforms (a few Linux flavors and OpenBSD).
199
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000200C API
201-----
202
203- PyObject_Bytes and PyBytes_FromObject were added.
204
Barry Warsaw8509df72008-08-21 03:02:47 +0000205Library
206-------
207
Guido van Rossum698280d2008-09-10 17:44:35 +0000208- Issue #3756: make re.escape() handle bytes as well as str.
209
Georg Brandl7cd67cc2008-09-09 19:31:25 +0000210- Issue #3800: fix filter() related bug in formatter.py.
211
Antoine Pitrou5fe291f2008-09-06 23:00:03 +0000212- Issue #874900: fix behaviour of threading module after a fork.
213
Antoine Pitrou9e4fdf42008-09-05 23:43:02 +0000214- Issue #3535: zipfile couldn't read some zip files larger than 2GB.
215
216- Issue #3776: Deprecate the bsddb package for removal in 3.0.
217
218- Issue #3762: platform.architecture() fails if python is lanched via
219 its symbolic link.
220
Antoine Pitroud79dc622008-09-05 00:03:33 +0000221- Issue #3660: fix a memory leak in the C accelerator of the pickle module.
222
Antoine Pitrou1d6a16b2008-09-04 21:32:09 +0000223- Issue #3160: the "bdist_wininst" distutils command didn't work.
224
Guilherme Polob212b752008-09-04 11:21:31 +0000225- Issue #1658: tkinter changes dict size during iteration in both
226 tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText.
227
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000228- The bsddb module (and therefore the dbm.bsd module) has been removed.
Gregory P. Smith451e99b2008-09-04 04:46:48 +0000229 It is now maintained outside of the standard library at
230 http://www.jcea.es/programacion/pybsddb.htm.
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000231
Facundo Batistac469d4c2008-09-03 22:49:01 +0000232- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module
233 to the urlparse one. Added a DeprecationWarning in the old module, it
234 will be deprecated in the future.
235
Marc-André Lemburg7b2b1f92008-09-02 12:10:46 +0000236- Issue #3719: platform.architecture() fails if there are spaces in the
237 path to the Python binary.
238
Brett Cannonec92e182008-09-02 02:46:59 +0000239- Issue 3602: As part of the merge of r66135, make the parameters on
240 warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning.
241
Benjamin Petersonb3085c92008-09-01 23:09:31 +0000242- The deprecation warnings for the camelCase threading API names were removed.
243
Jesse Noller338f5782008-09-03 18:22:19 +0000244- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing
245 SEM_VALUE_MAX.
246
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000247Extension Modules
248-----------------
249
Antoine Pitrou9cadb1b2008-09-15 23:02:56 +0000250- Issue #3782: os.write() must not accept unicode strings.
251
Amaury Forgeot d'Arcd8976f12008-09-02 23:22:56 +0000252- Issue #2975: When compiling several extension modules with Visual Studio 2008
253 from the same python interpreter, some environment variables would grow
254 without limit.
255
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000256- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by
257 exploitation of poor argument checking.
258
Jesus Cea6ba33292008-08-31 14:12:11 +0000259- bsddb code updated to version 4.7.3pre2. This code is the same than
260 Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase.
261 The Python code is automatically translated using "2to3". Please, do not
262 update this code in Python 3.0 by hand. Update the 2.6 one and then
263 do "2to3".
264
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000265- The _bytesio and _stringio modules are now compiled into the python binary.
266
Gregory P. Smith693fc462008-09-06 20:13:06 +0000267- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of
268 mutable bytearray objects where they should have been using immutable bytes.
269
Gregory P. Smith0a608fd2008-09-06 21:34:51 +0000270- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to
271 return bytes objects instead of bytearray objects.
272
Gregory P. Smith693fc462008-09-06 20:13:06 +0000273
Neal Norwitz8f2f22a2008-08-24 20:59:23 +0000274Tools/Demos
275-----------
276
277- Fix Misc/gdbinit so it works.
278
Barry Warsaw8509df72008-08-21 03:02:47 +0000279
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000280Build
281-----
282
Hirokazu Yamamoto54a1cc62008-09-09 17:55:11 +0000283- Issue #3812: Failed to build python if configure --without-threads.
284
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000285- Issue #3791: Remove the bsddb module from the Windows installer, and the
286 core bsddb library from the Windows build files.
287
288
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000289What's new in Python 3.0b3?
290===========================
291
Barry Warsaw57c10582008-08-21 02:39:51 +0000292*Release date: 20-Aug-2008*
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000293
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000294Core and Builtins
295-----------------
296
Benjamin Petersonbc74e5b2008-08-23 20:19:17 +0000297- Issue #3653: Fix a segfault when sys.excepthook was called with invalid
298 arguments.
299
Antoine Pitrou616d2852008-08-19 22:09:34 +0000300- Issue #2394: implement more of the memoryview API, with the caveat that
301 only one-dimensional contiguous buffers are supported and exercised right
302 now. Slicing, slice assignment and comparison (equality and inequality)
303 have been added. Also, the tolist() method has been implemented, but only
304 for byte buffers. Endly, the API has been updated to return bytes objects
305 wherever it used to return bytearrays.
306
Antoine Pitrouee58fa42008-08-19 18:22:14 +0000307- Issue #3560: clean up the new C PyMemoryView API so that naming is
308 internally consistent; add macros PyMemoryView_GET_BASE() and
309 PyMemoryView_GET_BUFFER() to access useful properties of a memory views
310 without relying on a particular implementation; remove the ill-named
311 PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead).
312
Thomas Hellerf5049fc2008-08-19 19:49:49 +0000313- ctypes function pointers that are COM methods have a boolean True
314 value again.
315
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000316- Issue #1819: function calls with several named parameters are now on
317 average 35% faster (as measured by pybench).
318
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000319- The undocumented C APIs PyUnicode_AsString() and
320 PyUnicode_AsStringAndSize() were made private to the interpreter, in
321 order to be able to refine their interfaces for Python 3.1.
322
323 If you need to access the UTF-8 representation of a Unicode object
324 as bytes string, please use PyUnicode_AsUTF8String() instead.
325
Antoine Pitrouaf14b792008-08-07 21:50:41 +0000326- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks
327 to Python 3.0's stricter semantics which allow to avoid successive
328 reallocations of the result string (this also affects str.join()).
329
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000330
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000331Library
332-------
333
Hye-Shik Chang50d1f792008-08-23 08:03:03 +0000334- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve
335 a build problem on MacOS with CJK locales. It adds four temporary
336 mappings to existing legacy codecs that are virtually compatible
337 with Mac encodings. They will be replaced by codecs correctly
338 implemented in 3.1.
339
Amaury Forgeot d'Arc41e36672008-08-20 21:35:50 +0000340- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError
341 "global name 'header' is not defined".
342
Antoine Pitroufd036452008-08-19 17:56:33 +0000343- Issue #2834: update the regular expression library to match the unicode
344 standards of py3k. In other words, mixing bytes and unicode strings
345 (be it as pattern, search string or replacement string) raises a TypeError.
346 Moreover, the re.UNICODE flag is enabled automatically for unicode patterns,
347 and can be disabled by specifying a new re.ASCII flag; as for bytes
348 patterns, ASCII matching is the only option and trying to specify re.UNICODE
349 for such patterns raises a ValueError.
350
Guido van Rossum52dbbb92008-08-18 21:44:30 +0000351- Issue #3300: make urllib.parse.[un]quote() default to UTF-8.
352 Code contributed by Matt Giuca. quote() now encodes the input
353 before quoting, unquote() decodes after unquoting. There are
354 new arguments to change the encoding and errors settings.
355 There are also new APIs to skip the encode/decode steps.
356 [un]quote_plus() are also affected.
357
Nick Coghlan36f49522008-08-18 12:31:52 +0000358- Issue #2235: numbers.Number now blocks inheritance of the default id()
359 based hash because that hash mechanism is not correct for numeric types.
360 All concrete numeric types that inherit from Number (rather than just
361 registering with it) must explicitly provide a hash implementation in
362 order for their instances to be hashable.
363
Benjamin Peterson4cd6a952008-08-17 20:23:46 +0000364- Issue #2676: in the email package, content-type parsing was hanging on
365 pathological input because of quadratic or exponential behaviour of a
366 regular expression.
367
Antoine Pitrou87695762008-08-14 22:44:29 +0000368- Issue #3476: binary buffered reading through the new "io" library is now
369 thread-safe.
370
Robert Schuppenies3d1c7de2008-08-10 11:28:17 +0000371- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to
372 menu entries were not deleted.
373
Lars Gustäbel0c24e8b2008-08-02 11:43:24 +0000374- Remove the TarFileCompat class from tarfile.py.
375
Amaury Forgeot d'Arcbdbddf82008-08-01 00:06:49 +0000376- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and
377 accepts the same parameters. It just checks that its first argument is an
378 integer.
379
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000380- Issue #3394: zipfile.writestr sets external attributes when passed a
381 file name rather than a ZipInfo instance, so files are extracted with
382 mode 0600 rather than 000 under Unix.
383
Antoine Pitrouc66f9092008-07-28 19:46:11 +0000384- Issue #2523: Fix quadratic behaviour when read()ing a binary file without
385 asking for a specific length.
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000386
Martin v. Löwis371bb502008-08-16 13:02:57 +0000387Extension Modules
388-----------------
389
390- Bug #3542: Support Unicode strings in _msi module.
391
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000392What's new in Python 3.0b2?
393===========================
394
Barry Warsaw4bd1cef2008-07-18 02:28:44 +0000395*Release date: 17-Jul-2008*
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000396
397Core and Builtins
398-----------------
399
Mark Dickinson65fe25e2008-07-16 11:30:51 +0000400- Issue #3008: the float type has a new instance method 'float.hex'
401 and a new class method 'float.fromhex' to convert floating-point
402 numbers to and from hexadecimal strings, respectively.
403
Eric Smithd68af8f2008-07-16 00:15:35 +0000404- Issue #3083: Add alternate (#) formatting for bin, oct, hex output
405 for str.format(). This adds the prefix 0b, 0o, or 0x, respectively.
406
Amaury Forgeot d'Arca4db6862008-07-04 21:26:43 +0000407- Issue #3280: like chr(), the "%c" format now accepts unicode code points
408 beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On
409 "narrow Unicode" builds, the result is a string of 2 code units, forming a
410 UTF-16 surrogate pair.
411
Georg Brandld52429f2008-07-04 15:55:02 +0000412- Issue #3282: str.isprintable() should return False for undefined
413 Unicode characters.
414
Martin v. Löwis029656f2008-06-30 04:06:08 +0000415- Issue #3236: Return small longs from PyLong_FromString.
416
Benjamin Petersone6528212008-07-15 15:32:09 +0000417- Exception tracebacks now support exception chaining.
418
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000419Library
420-------
421
Brett Cannonc2542e92008-07-25 18:19:20 +0000422- Removed the sunaudio module. Use sunau instead.
423
Thomas Heller47bc8092008-08-19 06:38:12 +0000424- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python
425 api functions without holding the GIL, which could lead to a fatal
426 error when they failed.
427
428- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects.
429
Georg Brandl30704ea02008-07-23 15:07:12 +0000430- Removed "ast" function aliases from the parser module.
431
Thomas Heller15383a02008-07-15 19:46:52 +0000432- Issue #3313: Fixed a crash when a failed dlopen() call does not set
433 a valid dlerror() message.
434
Thomas Heller0261e1e2008-07-15 17:25:07 +0000435- Issue #3258: Fixed a crash when a ctypes POINTER type to an
436 incomplete structure was created.
437
Georg Brandl1abcbf82008-07-01 19:28:43 +0000438- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the
439 argument now must be a bytes object in any case.
440
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000441- Issue #3145: help("modules whatever") failed when trying to load the source
442 code of every single module of the standard library, including invalid files
443 used in the test suite.
444
Georg Brandlbded4d32008-07-17 18:15:35 +0000445- The gettext library now consistently uses Unicode strings for message ids
446 and message strings, and ``ugettext()`` and the like don't exist anymore.
Benjamin Peterson801844d2008-07-14 14:32:15 +0000447
Benjamin Petersone6528212008-07-15 15:32:09 +0000448- The traceback module has been expanded to handle chained exceptions.
449
Amaury Forgeot d'Arc612f61f2008-07-02 23:02:21 +0000450C API
451-----
452
453- Issue #3247: the function Py_FindMethod was removed. Modern types should
454 use the tp_methods slot instead.
455
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000456Tools/Demos
457-----------
458
Georg Brandl336341f2008-07-01 20:21:28 +0000459- The Mac/Demos directory has been removed.
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000460
Georg Brandl336341f2008-07-01 20:21:28 +0000461- All of the Mac scripts have been removed (including BuildApplet.py).
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000462
463
Brett Cannon0d71ee72008-05-08 18:13:40 +0000464What's new in Python 3.0b1?
465===========================
466
Barry Warsawc1e689e2008-06-19 00:35:43 +0000467*Release date: 18-Jun-2008*
Brett Cannon0d71ee72008-05-08 18:13:40 +0000468
469Core and Builtins
470-----------------
471
Brett Cannondb734912008-06-27 00:52:15 +0000472- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
473 argument being anything other than a dict or None. Also fixed a bug in error
474 handling when 'message' and 'category' were both set to None, triggering a
475 bus error.
476
Amaury Forgeot d'Arcc856c7a2008-06-16 19:50:09 +0000477- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
478 holds the last (strong) reference to its referent.
479
Georg Brandl559e5d72008-06-11 18:37:52 +0000480- Issue #2630: implement PEP 3138. repr() now returns printable
481 Unicode characters unescaped, to get an ASCII-only representation
482 of an object use ascii().
483
Amaury Forgeot d'Arcf1ca0b12008-06-11 17:40:47 +0000484- Issue #1342: On windows, Python could not start when installed in a
485 directory with non-ascii characters.
486
Martin v. Löwis1a214512008-06-11 05:26:20 +0000487- Implement PEP 3121: new module initialization and finalization API.
488
Georg Brandle1b5ac62008-06-04 13:06:58 +0000489- Removed the already-defunct ``-t`` option.
490
Amaury Forgeot d'Arc74c71f52008-05-26 21:41:42 +0000491- Issue #2957: Corrected a ValueError "recursion limit exceeded", when
492 unmarshalling many code objects, which happens when importing a
493 large .pyc file (~1000 functions).
494
Georg Brandl52b92cc2008-05-25 09:43:03 +0000495- Issue #2963: fix merging oversight that disabled method cache for
496 all types.
Georg Brandl1bcf35a2008-05-25 09:32:09 +0000497
Georg Brandlc9b09532008-05-25 09:24:38 +0000498- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
499
Georg Brandl52b92cc2008-05-25 09:43:03 +0000500- Issue #2895: Don't crash when given bytes objects as keyword names.
Georg Brandld8b690f2008-05-16 17:28:50 +0000501
Georg Brandl52b92cc2008-05-25 09:43:03 +0000502- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
503 code now allows any unicode string and returns a utf-8 encoded
504 buffer, just like the "s#" code already does. The "z" code was
505 corrected as well.
Amaury Forgeot d'Arc07404592008-05-12 13:19:07 +0000506
Georg Brandl52b92cc2008-05-25 09:43:03 +0000507- Issue #2863: generators now have a ``gen.__name__`` attribute that
508 equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
509 ``func.func_code.co_name``. The repr() of a generator now also
510 contains this name.
Alexandre Vassalottie9f305f2008-05-16 04:39:54 +0000511
512- Issue #2831: enumerate() now has a ``start`` argument.
513
Georg Brandl52b92cc2008-05-25 09:43:03 +0000514- Issue #2801: fix bug in the float.is_integer method where a
515 ValueError was sometimes incorrectly raised.
Mark Dickinsonc4352b02008-05-09 13:55:01 +0000516
Georg Brandl52b92cc2008-05-25 09:43:03 +0000517- The ``--with-toolbox-glue`` option (and the associated
518 pymactoolbox.h) have been removed.
Benjamin Peterson79629ab2008-05-14 21:07:12 +0000519
Georg Brandl52b92cc2008-05-25 09:43:03 +0000520- Issue #2196: hasattr() now lets exceptions which do not inherit
521 Exception (KeyboardInterrupt, and SystemExit) propagate instead of
522 ignoring them.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000523
Benjamin Petersoneec3d712008-06-11 15:59:43 +0000524- #3021 Exception reraising sematics have been significantly improved. However,
525 f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
526 code anymore.
527
Benjamin Peterson4f92ca42008-06-11 20:21:57 +0000528- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been
529 removed.
530
Brett Cannon0d71ee72008-05-08 18:13:40 +0000531Extension Modules
532-----------------
533
Georg Brandl38feaf02008-05-25 07:45:51 +0000534- Renamed ``_winreg`` module to ``winreg``.
535
Georg Brandl52b92cc2008-05-25 09:43:03 +0000536- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
537 platform.
Alexandre Vassalottibee32532008-05-16 18:15:12 +0000538
539- Support for Windows 9x has been removed from the winsound module.
540
Georg Brandl52b92cc2008-05-25 09:43:03 +0000541- Issue #2870: cmathmodule.c compile error.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000542
Brett Cannon0d71ee72008-05-08 18:13:40 +0000543Library
544-------
545
Benjamin Peterson87069fd2008-08-20 02:00:14 +0000546- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of
547 symtable.Symbol have been removed.
548
Amaury Forgeot d'Arccb0d2d72008-06-18 22:19:22 +0000549- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows.
550
Jeremy Hylton1afc1692008-06-18 20:49:58 +0000551- a new ``urllib`` package was created. It consists of code from
552 ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old
553 modules have all been removed. The new package has five submodules:
554 ``urllib.parse``, ``urllib.request``, ``urllib.response``,
555 ``urllib.error``, and ``urllib.robotparser``. The
556 ``urllib.request.urlopen()`` function uses the url opener from
557 ``urllib2``. (Note that the unittests have not been renamed for the
558 beta, but they will be renamed in the future.)
559
Benjamin Petersona0c0a4a2008-06-12 22:15:50 +0000560- rfc822 has been removed in favor of the email package.
561
Benjamin Peterson425ea7f2008-06-12 14:11:35 +0000562- mimetools has been removed in favor of the email package.
Benjamin Peterson23c51a22008-06-12 14:06:57 +0000563
Barry Warsawf5019422008-06-12 02:42:00 +0000564- Patch #2849: Remove use of rfc822 module from standard library.
565
Alexandre Vassalotti794652d2008-06-11 22:58:36 +0000566- Added C optimized implementation of io.StringIO.
567
Alexandre Vassalottica2d6102008-06-12 18:26:05 +0000568- The ``pickle`` module is now automatically use an optimized C
569 implementation of Pickler and Unpickler when available. The
570 ``cPickle`` module is no longer needed.
571
Georg Brandl877b10a2008-06-01 21:25:55 +0000572- Removed the ``htmllib`` and ``sgmllib`` modules.
573
Georg Brandl61013952008-05-28 15:56:30 +0000574- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have
575 been removed from ``http.cookies``.
576
Brett Cannona23810f2008-05-26 19:04:21 +0000577- The ``commands`` module has been removed. Its getoutput() and
578 getstatusoutput() functions have been moved to the ``subprocess`` module.
579
Georg Brandl3d5c4252008-05-26 18:03:26 +0000580- The ``http`` package was created; it contains the old ``httplib``
581 as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib``
582 as ``http.cookiejar``, and the content of the three ``HTTPServer``
583 modules as ``http.server``.
584
Georg Brandl38eceaa2008-05-26 11:14:17 +0000585- The ``xmlrpc`` package was created; it contains the old
586 ``xmlrpclib`` module as ``xmlrpc.client`` and the content of
587 the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000588 as ``xmlrpc.server``.
Georg Brandl38eceaa2008-05-26 11:14:17 +0000589
590- The ``dbm`` package was created, containing the old modules
591 ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having
592 ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``),
593 ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``)
594 as submodules.
595
Georg Brandl52b92cc2008-05-25 09:43:03 +0000596- The ``repr`` module has been renamed to ``reprlib``.
Alexandre Vassalotti1f2ba4b2008-05-16 07:12:44 +0000597
Georg Brandl52b92cc2008-05-25 09:43:03 +0000598- The ``statvfs`` module has been removed.
Brett Cannonacbb7862008-05-16 00:42:57 +0000599
Georg Brandl52b92cc2008-05-25 09:43:03 +0000600- Issue #1713041: fix pprint's handling of maximum depth.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000601
Georg Brandl52b92cc2008-05-25 09:43:03 +0000602- Issue #2250: Exceptions raised during evaluation of names in
603 rlcompleter's ``Completer.complete()`` method are now caught and
604 ignored.
Alexandre Vassalotti8ae3e052008-05-16 00:41:41 +0000605
Georg Brandl52b92cc2008-05-25 09:43:03 +0000606- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
607 ``TextWrapper`` class.
Alexandre Vassalotti1d1eaa42008-05-14 22:59:42 +0000608
Alexandre Vassalotti6461e102008-05-15 22:09:29 +0000609- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
610 large to fit in a C long. ldexp(x, n) now returns a zero (with
611 suitable sign) if n is large and negative; previously, it raised
612 OverflowError.
613
Georg Brandl52b92cc2008-05-25 09:43:03 +0000614- The ``ConfigParser`` module has been renamed to ``configparser``.
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000615
Georg Brandl52b92cc2008-05-25 09:43:03 +0000616- Issue #2865: webbrowser.open() works again in a KDE environment.
Amaury Forgeot d'Arc2b2b44d2008-05-12 14:41:00 +0000617
Georg Brandl52b92cc2008-05-25 09:43:03 +0000618- The ``multifile`` module has been removed.
Brett Cannond3343cb2008-05-12 03:18:21 +0000619
Georg Brandl52b92cc2008-05-25 09:43:03 +0000620- The ``SocketServer`` module has been renamed to ``socketserver``.
Alexandre Vassalottice261952008-05-12 02:31:37 +0000621
Georg Brandl52b92cc2008-05-25 09:43:03 +0000622- Fixed the ``__all__`` setting on ``collections`` to include
623 ``UserList`` and ``UserString``.
Brett Cannon23a4a7b2008-05-12 00:56:28 +0000624
Brett Cannoncf3520c2008-05-11 22:47:58 +0000625- The sre module has been removed.
626
Alexandre Vassalottif260e442008-05-11 19:59:59 +0000627- The Queue module has been renamed to queue.
628
Alexandre Vassalottif7fa63d2008-05-11 08:55:36 +0000629- The copy_reg module has been renamed to copyreg.
630
Brett Cannond8b61ee2008-05-11 03:00:26 +0000631- The mhlib module has been removed.
632
Brett Cannonbd474422008-05-10 22:42:14 +0000633- The ihooks module has been removed.
634
Brett Cannonb59a2bd2008-05-10 22:03:16 +0000635- The fpformat module has been removed.
636
Brett Cannonf4fd9932008-05-10 21:11:46 +0000637- The dircache module has been removed.
638
Brett Cannond175b4c2008-05-10 03:19:54 +0000639- The Canvas module has been removed.
640
Mark Dickinsonb27406c2008-05-09 13:42:33 +0000641- The Decimal module gained the magic methods __round__, __ceil__,
642 __floor__ and __trunc__, to give support for round, math.ceil,
643 math.floor and math.trunc.
644
Brett Cannon900ee3a2008-05-08 20:31:11 +0000645- The user module has been removed.
646
Brett Cannon34afe872008-05-08 20:31:44 +0000647- The mutex module has been removed.
648
Brett Cannon0d71ee72008-05-08 18:13:40 +0000649- The imputil module has been removed.
650
Georg Brandl52b92cc2008-05-25 09:43:03 +0000651- os.path.walk has been removed in favor of os.walk.
Benjamin Petersond71ca412008-05-08 23:44:58 +0000652
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000653- pdb gained the "until" command.
654
Georg Brandl52b92cc2008-05-25 09:43:03 +0000655- The test.test_support module has been renamed to test.support.
Benjamin Petersonee8712c2008-05-20 21:35:26 +0000656
Georg Brandl32de7af2008-08-18 23:07:41 +0000657- The threading module API was renamed to be PEP 8 compliant. The
658 old names are still present, but will be removed in the near future.
Benjamin Peterson672b8032008-06-11 19:14:14 +0000659
Georg Brandl294d5a92008-06-01 19:25:32 +0000660Tools/Demos
661-----------
662
663- The bgen tool has been removed.
Benjamin Peterson630c8292008-06-01 18:50:38 +0000664
Brett Cannon0d71ee72008-05-08 18:13:40 +0000665Build
666-----
667
668
Barry Warsaw66079cd2008-04-04 01:36:36 +0000669What's New in Python 3.0a5?
670===========================
671
Barry Warsaw9eab8b02008-05-08 13:05:38 +0000672*Release date: 08-May-2008*
Barry Warsaw66079cd2008-04-04 01:36:36 +0000673
674Core and Builtins
675-----------------
676
Georg Brandl52b92cc2008-05-25 09:43:03 +0000677- Fixed misbehaviour of PyLong_FromSsize_t on systems where
678 sizeof(size_t) > sizeof(long).
Mark Dickinson7ab6be22008-04-15 21:42:42 +0000679
Georg Brandl52b92cc2008-05-25 09:43:03 +0000680- Issue #2221: Corrected a SystemError "error return without exception
681 set", when the code executed by exec() raises an exception, and
682 sys.stdout.flush() also raises an error.
Amaury Forgeot d'Arc7fedbe52008-04-10 21:03:09 +0000683
Georg Brandl52b92cc2008-05-25 09:43:03 +0000684- Bug #2565: The repr() of type objects now calls them 'class', not
685 'type' - whether they are builtin types or not.
Martin v. Löwis250ad612008-04-07 05:43:42 +0000686
Martin v. Löwis790465f2008-04-05 20:41:37 +0000687- The command line processing was converted to pass Unicode strings
688 through as unmodified as possible; as a consequence, the C API
689 related to command line arguments was changed to use wchar_t.
690
Georg Brandl52b92cc2008-05-25 09:43:03 +0000691- All backslashes in raw strings are interpreted literally. This
692 means that '\u' and '\U' escapes are not treated specially.
Benjamin Petersona2f837f2008-04-28 21:05:10 +0000693
Barry Warsaw66079cd2008-04-04 01:36:36 +0000694Extension Modules
695-----------------
696
697Library
698-------
699
Georg Brandl52b92cc2008-05-25 09:43:03 +0000700- ctypes objects now support the PEP3118 buffer interface.
Thomas Hellerb041fda2008-04-30 17:11:46 +0000701
Thomas Hellere106dc32008-04-24 18:39:36 +0000702- Issue #2682: ctypes callback functions now longer contain a cyclic
703 reference to themselves.
704
Georg Brandl52b92cc2008-05-25 09:43:03 +0000705- Issue #2058: Remove the buf attribute and add __slots__ to the
706 TarInfo class in order to reduce tarfile's memory usage.
Lars Gustäbelc2ea8c62008-04-14 10:05:48 +0000707
Martin v. Löwis8efc62c2008-04-10 19:02:25 +0000708- Bug #2606: Avoid calling .sort() on a dict_keys object.
709
Thomas Hellerbff533b2008-04-04 19:53:14 +0000710- The bundled libffi copy is now in sync with the recently released
711 libffi3.0.5 version, apart from some small changes to
712 Modules/_ctypes/libffi/configure.ac.
713
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000714Build
715-----
716
Mark Dickinsonb0e2b4c2008-04-26 20:48:56 +0000717- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
718
Guido van Rossumdc21db32008-04-07 18:37:41 +0000719- "make install" is now an alias for "make altinstall", to prevent
Georg Brandl52b92cc2008-05-25 09:43:03 +0000720 accidentally overwriting a Python 2.x installation. Use "make
721 fullinstall" to force Python 3.0 to be installed as "python".
Guido van Rossumdc21db32008-04-07 18:37:41 +0000722
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000723- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
724 gcc is used as compiler.
Barry Warsaw66079cd2008-04-04 01:36:36 +0000725
Georg Brandl52b92cc2008-05-25 09:43:03 +0000726
Barry Warsawa9d499d2008-03-01 18:38:07 +0000727What's New in Python 3.0a4?
728===========================
729
Barry Warsawbb5cd082008-04-02 23:33:27 +0000730*Release date: 02-Apr-2008*
Barry Warsawa9d499d2008-03-01 18:38:07 +0000731
Martin v. Löwis25931462008-03-17 20:43:42 +0000732Core and Builtins
733-----------------
734
735- Bug #2301: Don't try decoding the source code into the original
736 encoding for syntax errors.
737
Martin v. Löwis92fab752008-03-08 10:40:41 +0000738Extension Modules
739-----------------
740
Neal Norwitz6cf49cf2008-03-24 06:22:57 +0000741- The dl module was removed, use the ctypes module instead.
742
Martin v. Löwis92fab752008-03-08 10:40:41 +0000743- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +0000744
Martin v. Löwis071ef772008-03-08 11:24:24 +0000745Library
746-------
747
Georg Brandl52b92cc2008-05-25 09:43:03 +0000748- The class distutils.commands.build_py.build_py_2to3 can be used as a
749 build_py replacement to automatically run 2to3 on modules that are
750 going to be installed.
Martin v. Löwis73a22f02008-03-22 00:35:10 +0000751
Guido van Rossumf4169812008-03-17 22:56:06 +0000752- A new pickle protocol (protocol 3) is added with explicit support
753 for bytes. This is the default protocol. It intentionally cannot
754 be unpickled by Python 2.x.
755
756- When a pickle written by Python 2.x contains an (8-bit) str
757 instance, this is now decoded to a (Unicode) str instance. The
758 encoding used to do this defaults to ASCII, but can be overridden
759 via two new keyword arguments to the Unpickler class. Previously
760 this would create bytes instances, which is usually wrong: str
761 instances are often used to pickle attribute names etc., and text is
762 more common than binary data anyway.
763
Martin v. Löwis071ef772008-03-08 11:24:24 +0000764- Default to ASCII as the locale.getpreferredencoding, if the POSIX
Georg Brandl52b92cc2008-05-25 09:43:03 +0000765 system doesn't support CODESET and LANG isn't set or doesn't allow
766 deduction of an encoding.
Martin v. Löwis071ef772008-03-08 11:24:24 +0000767
Georg Brandl52b92cc2008-05-25 09:43:03 +0000768- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
769 value.
Gregory P. Smith425136b2008-03-17 20:45:21 +0000770
Georg Brandl52b92cc2008-05-25 09:43:03 +0000771- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
772 has been renamed tokenize and now works with bytes rather than
773 strings. A new detect_encoding function has been added for
774 determining source file encoding according to PEP-0263. Token
775 sequences returned by tokenize always start with an ENCODING token
776 which specifies the encoding used to decode the file. This token is
777 used to encode the output of untokenize back to bytes.
778
Barry Warsawa9d499d2008-03-01 18:38:07 +0000779
Christian Heimesbc873412007-12-08 22:11:32 +0000780What's New in Python 3.0a3?
781===========================
782
Barry Warsaw659fc422008-03-01 17:45:23 +0000783*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +0000784
785Core and Builtins
786-----------------
787
Georg Brandl52b92cc2008-05-25 09:43:03 +0000788- Issue #2282: io.TextIOWrapper was not overriding seekable() from
789 io.IOBase.
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +0000790
Georg Brandl52b92cc2008-05-25 09:43:03 +0000791- Issue #2115: Important speedup in setting __slot__ attributes. Also
792 prevent a possible crash: an Abstract Base Class would try to access
793 a slot on a registered virtual subclass.
Christian Heimesa156e092008-02-16 07:38:31 +0000794
Georg Brandl52b92cc2008-05-25 09:43:03 +0000795- Fixed repr() and str() of complex numbers with infinity or nan as
796 real or imaginary part.
Christian Heimesa156e092008-02-16 07:38:31 +0000797
Georg Brandl52b92cc2008-05-25 09:43:03 +0000798- Clear all free list during a gc.collect() of the highest generation
799 in order to allow pymalloc to free more arenas. Python may give back
800 memory to the OS earlier.
Christian Heimesa156e092008-02-16 07:38:31 +0000801
Georg Brandl52b92cc2008-05-25 09:43:03 +0000802- Issue #2045: Fix an infinite recursion triggered when printing a
803 subclass of collections.defaultdict, if its default_factory is set
804 to a bound method.
Christian Heimesa156e092008-02-16 07:38:31 +0000805
806- Fixed a minor memory leak in dictobject.c. The content of the free
807 list was not freed on interpreter shutdown.
808
Georg Brandl52b92cc2008-05-25 09:43:03 +0000809- Limit free list of method and builtin function objects to 256
810 entries each.
Christian Heimesa156e092008-02-16 07:38:31 +0000811
Georg Brandl52b92cc2008-05-25 09:43:03 +0000812- Patch #1953: Added ``sys._compact_freelists()`` and the C API
813 functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
Christian Heimesa156e092008-02-16 07:38:31 +0000814 to compact the internal free lists of pre-allocted ints and floats.
815
816- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
Georg Brandl52b92cc2008-05-25 09:43:03 +0000817 Python expected the return type int but the fork familie returns
818 pi_t.
Christian Heimesa156e092008-02-16 07:38:31 +0000819
Georg Brandl52b92cc2008-05-25 09:43:03 +0000820- Issue #1678380: Fix a bug that identifies 0j and -0j when they
821 appear in the same code unit.
Christian Heimesa156e092008-02-16 07:38:31 +0000822
Georg Brandl52b92cc2008-05-25 09:43:03 +0000823- Issue #2025: Added tuple.count() and tuple.index() methods to comply
824 with the collections.Sequence API.
Raymond Hettinger65baa342008-02-07 00:41:02 +0000825
Georg Brandl52b92cc2008-05-25 09:43:03 +0000826- Fixed multiple reinitialization of the Python interpreter. The small
827 int list in longobject.c has caused a seg fault during the third
828 finalization.
Christian Heimesdfc12ed2008-01-31 15:16:38 +0000829
Georg Brandl52b92cc2008-05-25 09:43:03 +0000830- Issue #1973: bytes.fromhex('') raised SystemError.
Christian Heimesc04dac02008-01-30 11:27:57 +0000831
Georg Brandl52b92cc2008-05-25 09:43:03 +0000832- Issue #1771: remove cmp parameter from sorted() and list.sort().
Raymond Hettinger70b64fc2008-01-30 20:15:17 +0000833
Georg Brandl52b92cc2008-05-25 09:43:03 +0000834- Issue #1969: split and rsplit in bytearray are inconsistent.
Christian Heimes7b876152008-01-30 09:51:48 +0000835
Georg Brandl52b92cc2008-05-25 09:43:03 +0000836- map() no longer accepts None for the first argument. Use zip()
837 instead.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000838
Facundo Batista2336bdd2008-01-19 19:12:01 +0000839- Issue #1769: Now int("- 1") is not allowed any more.
840
Georg Brandl52b92cc2008-05-25 09:43:03 +0000841- Object/longobject.c: long(float('nan')) raises an OverflowError
842 instead of returning 0.
Christian Heimes386cd1e2008-01-15 02:01:20 +0000843
Georg Brandl52b92cc2008-05-25 09:43:03 +0000844- Issue #1762972: __file__ points to the source file instead of the
845 pyc/pyo file if the py file exists.
Christian Heimes3b06e532008-01-07 20:12:44 +0000846
Guido van Rossumab078dd2008-01-06 00:09:11 +0000847- Issue #1393: object_richcompare() returns NotImplemented instead of
848 False if the objects aren't equal, to give the other side a chance.
849
Guido van Rossume239b002008-01-06 00:44:20 +0000850- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000851
Georg Brandl52b92cc2008-05-25 09:43:03 +0000852- Improve some exception messages when Windows fails to load an
853 extension module. Now we get for example '%1 is not a valid Win32
854 application' instead of 'error code 193'. Also use Unicode strings
855 to deal with non-English locales.
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000856
Georg Brandl52b92cc2008-05-25 09:43:03 +0000857- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
858 Python C API has gained a new type *PyInstanceMethod_Type* and the
859 functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
860 and *PyInstanceMethod_Function(im)*.
Christian Heimesa3534a62007-12-11 19:56:40 +0000861
Georg Brandl52b92cc2008-05-25 09:43:03 +0000862- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
863 from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
864 are now enough to print the corresponding list of objects considered
865 by the garbage collector.
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000866
Georg Brandl52b92cc2008-05-25 09:43:03 +0000867- Issue #1573: Improper use of the keyword-only syntax makes the
868 parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000869
Georg Brandl52b92cc2008-05-25 09:43:03 +0000870- Issue #1564: The set implementation should special-case PyUnicode
871 instead of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000872
Guido van Rossumea6775b2008-02-21 20:16:31 +0000873- Patch #1031213: Decode source line in SyntaxErrors back to its
874 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000875
Christian Heimes09aaa882008-02-23 15:01:06 +0000876- inspect.getsource() includes the decorators again.
877
Guido van Rossumea6775b2008-02-21 20:16:31 +0000878- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
879 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000880
Georg Brandl52b92cc2008-05-25 09:43:03 +0000881- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
882 the first chunk fed to the decoder started with a BOM, but was
883 longer than 3 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000884
Christian Heimesbc873412007-12-08 22:11:32 +0000885Extension Modules
886-----------------
887
Georg Brandl52b92cc2008-05-25 09:43:03 +0000888- Code for itertools ifilter(), imap(), and izip() moved to bultins
889 and renamed to filter(), map(), and zip(). Also, renamed
890 izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000891
Georg Brandl52b92cc2008-05-25 09:43:03 +0000892- Issue #1762972: Readded the reload() function as imp.reload().
Guido van Rossumea6775b2008-02-21 20:16:31 +0000893
Georg Brandl52b92cc2008-05-25 09:43:03 +0000894- Bug #2111: mmap segfaults when trying to write a block opened with
895 PROT_READ.
Christian Heimesa156e092008-02-16 07:38:31 +0000896
Georg Brandl52b92cc2008-05-25 09:43:03 +0000897- Issue #2063: correct order of utime and stime in os.times() result
898 on Windows.
Christian Heimes7131fd92008-02-19 14:21:46 +0000899
Christian Heimesbc873412007-12-08 22:11:32 +0000900Library
901-------
902
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000903- Weakref dictionaries now inherit from MutableMapping.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000904
Georg Brandl52b92cc2008-05-25 09:43:03 +0000905- Created new UserDict class in collections module. This one inherits
906 from and complies with the MutableMapping ABC. Also, moved
907 UserString and UserList to the collections module. The
908 MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000909
Guido van Rossumea6775b2008-02-21 20:16:31 +0000910- Removed UserDict.DictMixin. Replaced all its uses with
911 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000912
Guido van Rossume239b002008-01-06 00:44:20 +0000913- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000914
Guido van Rossume239b002008-01-06 00:44:20 +0000915- Issue #1585: IDLE uses non-existent xrange() function.
916
917- Issue #1578: Problems in win_getpass.
918
Georg Brandl52d168a2008-01-07 18:10:24 +0000919Build
920-----
921
Georg Brandl52b92cc2008-05-25 09:43:03 +0000922- Renamed --enable-unicode configure flag to --with-wide-unicode,
923 since Unicode strings can't be disabled anymore.
Georg Brandl52d168a2008-01-07 18:10:24 +0000924
Guido van Rossume239b002008-01-06 00:44:20 +0000925C API
926-----
927
928- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
929 Py_TYPE and Py_REFCNT.
930
Georg Brandl52b92cc2008-05-25 09:43:03 +0000931- New API PyImport_ImportModuleNoBlock(), works like
932 PyImport_ImportModule() but won't block on the import lock
933 (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000934
Christian Heimesbc873412007-12-08 22:11:32 +0000935
Fred Drake0e474a82007-10-11 18:01:43 +0000936What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000937===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000938
Guido van Rossum99533a92007-12-06 05:07:41 +0000939*Release date: 07-Dec-2007*
940
941(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000942
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000943Core and Builtins
944-----------------
945
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000946- str8 now has the same construction signature as bytes.
947
Georg Brandl52b92cc2008-05-25 09:43:03 +0000948- Comparisons between str and str8 now return False/True for ==/!=.
949 sqlite3 returns str8 when recreating on object from it's __conform__
950 value. The struct module returns str8 for all string-related
951 formats. This was true before this change, but becomes more
952 apparent thanks to string comparisons always being False.
Brett Cannon40430012007-10-22 20:24:51 +0000953
Georg Brandl52b92cc2008-05-25 09:43:03 +0000954- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
955 buffer, encoding, newline)`.
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000956
957- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
958
959- Changed `__file__` and `co_filename` to unicode. The path names are decoded
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000960 with `Py_FileSystemDefaultEncoding` and a new API method
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000961 `PyUnicode_DecodeFSDefault(char*)` was added.
962
Georg Brandl52b92cc2008-05-25 09:43:03 +0000963- io.open() and _fileio.FileIO have grown a new argument closefd. A
964 false value disables the closing of the file descriptor.
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000965
Georg Brandl52b92cc2008-05-25 09:43:03 +0000966- Added a new option -b to issues warnings (-bb for errors) about
967 certain operations between bytes/buffer and str like str(b'') and
968 comparison.
Guido van Rossum98297ee2007-11-06 21:34:58 +0000969
Georg Brandl52b92cc2008-05-25 09:43:03 +0000970- The standards streams sys.stdin, stdout and stderr may be None when
971 the when the C runtime library returns an invalid file descriptor
972 for the streams (fileno(stdin) < 0). For now this happens only for
973 Windows GUI apps and scripts started with `pythonw.exe`.
Christian Heimes58cb1b82007-11-13 02:19:40 +0000974
Christian Heimesbce52be2007-11-17 19:08:41 +0000975- Added PCbuild9 directory for VS 2008.
976
Georg Brandl52b92cc2008-05-25 09:43:03 +0000977- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
978 work around a name clash with VS 2008 on Windows.
Christian Heimesbce52be2007-11-17 19:08:41 +0000979
Georg Brandl52b92cc2008-05-25 09:43:03 +0000980- Unbound methods are gone for good. ClassObject.method returns an
981 ordinary function object, instance.method still returns a bound
982 method object. The API of bound methods is cleaned up, too. The
983 im_class attribute is removed and im_func + im_self are renamed to
984 __func__ and __self__. The factory PyMethod_New takes only func and
985 instance as argument.
Christian Heimesff737952007-11-27 10:40:20 +0000986
Georg Brandl52b92cc2008-05-25 09:43:03 +0000987- intobject.h is no longer included by Python.h. The remains were
988 moved to longobject.h. It still exists to define several aliases
989 from PyInt_ to PyLong_ functions.
Christian Heimesf78b1c62007-12-02 16:52:32 +0000990
Christian Heimesa37d4c62007-12-04 23:02:19 +0000991- Removed sys.maxint, use sys.maxsize instead.
992
Fred Drake0e474a82007-10-11 18:01:43 +0000993Extension Modules
994-----------------
995
996- The `hotshot` profiler has been removed; use `cProfile` instead.
997
Brett Cannone9fd2312007-10-12 19:18:19 +0000998Library
999-------
1000
Georg Brandl52b92cc2008-05-25 09:43:03 +00001001- When loading an external file using testfile(), the passed-in
1002 encoding argument was being ignored if __loader__ is defined and
1003 forcing the source to be UTF-8.
Brett Cannone9fd2312007-10-12 19:18:19 +00001004
Georg Brandl52b92cc2008-05-25 09:43:03 +00001005- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
1006 been removed in favor of the tempfile module.
Guido van Rossum687b9c02007-10-25 23:18:51 +00001007
Christian Heimesc9543e42007-11-28 08:28:28 +00001008- Removed the 'new' module.
1009
Georg Brandl52b92cc2008-05-25 09:43:03 +00001010- Removed all types from the 'types' module that are easily accessable
1011 through builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +00001012
Georg Brandl52d168a2008-01-07 18:10:24 +00001013
Guido van Rossum4405cf32007-08-30 17:16:55 +00001014What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +00001015==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +00001016
Guido van Rossum4405cf32007-08-30 17:16:55 +00001017*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +00001018
1019Core and Builtins
1020-----------------
1021
Martin v. Löwis47383402007-08-15 07:32:56 +00001022- PEP 3131: Support non-ASCII identifiers.
1023
Martin v. Löwis447d33e2007-07-29 18:10:01 +00001024- PEP 3120: Change default encoding to UTF-8.
1025
Martin v. Löwis9f2e3462007-07-21 17:22:18 +00001026- PEP 3123: Use proper C inheritance for PyObject.
1027
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001028- Removed the __oct__ and __hex__ special methods and added a bin()
1029 builtin function.
1030
Georg Brandl52b92cc2008-05-25 09:43:03 +00001031- PEP 3127: octal literals now start with "0o". Old-style octal
1032 literals are invalid. There are binary literals with a prefix of
1033 "0b". This also affects int(x, 0).
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001034
Guido van Rossume7ba4952007-06-06 23:52:48 +00001035- None, True, False are now keywords.
1036
Guido van Rossum29478ef2007-05-29 00:39:44 +00001037- PEP 3119: isinstance() and issubclass() can be overridden.
1038
Guido van Rossumebe3e162007-05-17 18:20:34 +00001039- Remove BaseException.message.
1040
Guido van Rossum1bc535d2007-05-15 18:46:22 +00001041- Remove tuple parameter unpacking (PEP 3113).
1042
Georg Brandl52b92cc2008-05-25 09:43:03 +00001043- Remove the f_restricted attribute from frames. This naturally leads
1044 to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
Guido van Rossuma8add0e2007-05-14 22:03:55 +00001045
Georg Brandl52b92cc2008-05-25 09:43:03 +00001046- PEP 3132 was accepted. That means that you can do ``a, *b =
1047 range(5)`` to assign 0 to a and [1, 2, 3, 4] to b.
Guido van Rossum0368b722007-05-11 16:50:42 +00001048
Georg Brandl52b92cc2008-05-25 09:43:03 +00001049- range() now returns an iterator rather than a list. Floats are not
1050 allowed. xrange() is no longer defined.
Guido van Rossum805365e2007-05-07 22:24:25 +00001051
Nick Coghlan650f0d02007-04-15 12:05:43 +00001052- Patch #1660500: hide iteration variable in list comps, add set comps
Georg Brandl52b92cc2008-05-25 09:43:03 +00001053 and use common code to handle compilation of iterative expressions.
Nick Coghlan650f0d02007-04-15 12:05:43 +00001054
Guido van Rossume27dc722007-03-27 22:37:34 +00001055- By default, != returns the opposite of ==, unless the latter returns
1056 NotImplemented.
1057
Georg Brandl52b92cc2008-05-25 09:43:03 +00001058- Patch #1680961: sys.exitfunc has been removed and replaced with a
1059 private C-level API.
Collin Winter670e6922007-03-21 02:57:17 +00001060
Georg Brandl801dd732007-03-18 20:18:31 +00001061- PEP 3115: new metaclasses: the metaclass is now specified as a
Georg Brandl52b92cc2008-05-25 09:43:03 +00001062 keyword arg in the class statement, which can now use the full
1063 syntax of a parameter list. Also, the metaclass can implement a
1064 __prepare__ function which will be called to create the dictionary
1065 for the new class namespace.
Georg Brandl801dd732007-03-18 20:18:31 +00001066
Georg Brandl428f0642007-03-18 18:35:15 +00001067- The long-deprecated argument "pend" of PyFloat_FromString() has been
1068 removed.
1069
Georg Brandle32b4222007-03-10 22:13:27 +00001070- The dir() function has been extended to call the __dir__() method on
Georg Brandl52b92cc2008-05-25 09:43:03 +00001071 its argument, if it exists. If not, it will work like before. This
1072 allows customizing the output of dir() in the presence of a
1073 __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +00001074
Neal Norwitz8dfc4a92007-08-11 06:39:53 +00001075- Removed support for __members__ and __methods__.
1076
Georg Brandle32b4222007-03-10 22:13:27 +00001077- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +00001078
Georg Brandle32b4222007-03-10 22:13:27 +00001079- input() became raw_input(): the name input() now implements the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001080 functionality formerly known as raw_input(); the name raw_input() is
1081 no longer defined.
Guido van Rossum0240b922007-02-26 21:23:50 +00001082
Georg Brandl52b92cc2008-05-25 09:43:03 +00001083- Classes listed in an 'except' clause must inherit from
1084 BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +00001085
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001086- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +00001087 and .keys(), .items(), .values() return dict views, which behave
1088 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001089
Guido van Rossum8b545362007-02-09 23:52:14 +00001090- PEP 3105: print is now a function. Also (not in the PEP) the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001091 'softspace' attribute of files is now gone (since print() doesn't
1092 use it). A side effect of this change is that you can get
1093 incomplete output lines in interactive sessions:
Guido van Rossum8b545362007-02-09 23:52:14 +00001094
1095 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +00001096 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +00001097
1098 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +00001099
Brett Cannon398db8b2007-01-29 23:44:37 +00001100- PEP 3102: keyword-only arguments.
1101
Georg Brandl52b92cc2008-05-25 09:43:03 +00001102- Int/Long unification is complete. The 'long' built-in type and
1103 literals with trailing 'L' or 'l' have been removed. Performance
1104 may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +00001105
1106- 'except E, V' must now be spelled as 'except E as V' and deletes V
1107 at the end of the except clause; V must be a simple name.
1108
Neal Norwitzc1505362006-12-28 06:47:50 +00001109- Added function annotations per PEP 3107.
1110
Georg Brandl52b92cc2008-05-25 09:43:03 +00001111- Added nonlocal declaration from PEP 3104:
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +00001112
1113 >>> def f(x):
1114 ... def inc():
1115 ... nonlocal x
1116 ... x += 1
1117 ... return x
1118 ... return inc
1119 ...
1120 >>> inc = f(0)
1121 >>> inc()
1122 1
1123 >>> inc()
1124 2
1125
Georg Brandl66a796e2006-12-19 20:50:34 +00001126- Moved intern() to sys.intern().
1127
1128- exec is now a function.
1129
1130- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +00001131
Neal Norwitz4886cc32006-08-21 17:06:07 +00001132- Classic classes are a thing of the past. All classes are new style.
1133
1134- Exceptions *must* derive from BaseException.
1135
1136- Integer division always returns a float. The -Q option is no more.
1137 All the following are gone:
1138 * PyNumber_Divide and PyNumber_InPlaceDivide
1139 * __div__, __rdiv__, and __idiv__
1140 * nb_divide, nb_inplace_divide
1141 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
1142 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
1143 if we want to re-use __div__ and friends. If we do, it will make
1144 it harder to write code for both 2.x and 3.x.)
1145
1146- 'as' and 'with' are keywords.
1147
1148- Absolute import is the default behavior for 'import foo' etc.
1149
Georg Brandl52b92cc2008-05-25 09:43:03 +00001150- Removed support for syntax: backticks (ie, `x`), <>.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001151
Georg Brandl52b92cc2008-05-25 09:43:03 +00001152- Removed these Python builtins: apply(), callable(), coerce(),
1153 execfile(), file(), reduce(), reload().
Neal Norwitz4886cc32006-08-21 17:06:07 +00001154
Georg Brandl52b92cc2008-05-25 09:43:03 +00001155- Removed these Python methods: {}.has_key.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001156
Georg Brandl52b92cc2008-05-25 09:43:03 +00001157- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001158
1159- Remove C API support for restricted execution.
1160
Guido van Rossumcf1be882007-08-30 22:07:17 +00001161- zip(), map() and filter() now return iterators, behaving like their
Georg Brandl52b92cc2008-05-25 09:43:03 +00001162 itertools counterparts. This also affect map()'s behavior on
Guido van Rossumcf1be882007-08-30 22:07:17 +00001163 sequences of unequal length -- it now stops after the shortest one
1164 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001165
Georg Brandl52b92cc2008-05-25 09:43:03 +00001166- Additions: set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001167
1168- Added class decorators per PEP 3129.
1169
1170
1171Extension Modules
1172-----------------
1173
Georg Brandl52b92cc2008-05-25 09:43:03 +00001174- Removed the imageop module. Obsolete long with its unit tests
1175 becoming useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001176
Georg Brandl52b92cc2008-05-25 09:43:03 +00001177- Removed these attributes from the operator module: div, idiv,
1178 __div__, __idiv__, isCallable, sequenceIncludes.
1179
1180- Removed these attributes from the sys module: exc_clear(), exc_type,
1181 exc_value, exc_traceback.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001182
1183
1184Library
1185-------
1186
Georg Brandl52b92cc2008-05-25 09:43:03 +00001187- Removed the compiler package. Use of the _ast module and (an
1188 eventual) AST -> bytecode mechanism.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001189
Georg Brandl52b92cc2008-05-25 09:43:03 +00001190- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
1191 linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
1192 stringold, strop, sunaudiodev, timing, xmllib.
Guido van Rossum33d26892007-08-05 15:29:28 +00001193
Georg Brandl52b92cc2008-05-25 09:43:03 +00001194- Moved the toaiff module to Tools/Demos.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001195
Georg Brandl52b92cc2008-05-25 09:43:03 +00001196- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
1197 DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
1198 IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001199
Georg Brandl52b92cc2008-05-25 09:43:03 +00001200- Removed obsolete functions: commands.getstatus(), os.popen*().
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001201
Georg Brandl52b92cc2008-05-25 09:43:03 +00001202- Removed functions in the string module that are also string methods;
Martin v. Löwis967f1e32007-08-14 09:23:10 +00001203 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001204
Georg Brandl52b92cc2008-05-25 09:43:03 +00001205- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001206
Georg Brandl52b92cc2008-05-25 09:43:03 +00001207- Removed xmlrpclib.SlowParser. It was based on xmllib.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001208
1209- Patch #1680961: atexit has been reimplemented in C.
1210
Walter Dörwald41980ca2007-08-16 21:55:45 +00001211- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
1212
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001213Build
1214-----
1215
1216C API
1217-----
1218
Georg Brandl52b92cc2008-05-25 09:43:03 +00001219- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001220
Georg Brandl52b92cc2008-05-25 09:43:03 +00001221- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
1222 PyMember_Get, PyMember_Set.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001223
Georg Brandl52b92cc2008-05-25 09:43:03 +00001224- Removed these C slots/fields: nb_divide, nb_inplace_divide.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001225
Georg Brandl52b92cc2008-05-25 09:43:03 +00001226- Removed these macros: staticforward, statichere, PyArg_GetInt,
1227 PyArg_NoArgs, _PyObject_Del.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001228
Georg Brandl52b92cc2008-05-25 09:43:03 +00001229- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
1230 intintobjargproc, getreadbufferproc, getwritebufferproc,
1231 getsegcountproc, getcharbufferproc, memberlist.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001232
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001233Tests
1234-----
1235
Brett Cannone7a30f72008-03-03 03:36:27 +00001236- Removed test.testall as test.regrtest replaces it.
1237
Brett Cannonced04e02005-02-13 22:53:22 +00001238Documentation
1239-------------
1240
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001241Mac
1242---
1243
Georg Brandl52b92cc2008-05-25 09:43:03 +00001244- The cfmfile module was removed.
Guido van Rossume7ba4952007-06-06 23:52:48 +00001245
Guido van Rossum845702c2007-08-30 18:44:53 +00001246Platforms
1247---------
1248
1249- Support for BeOS and AtheOS was removed (according to PEP 11).
1250
1251- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
1252
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001253Tools/Demos
1254-----------
1255
Georg Brandl52b92cc2008-05-25 09:43:03 +00001256
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001257**(For information about older versions, consult the HISTORY file.)**