blob: 9684cee5ff80176e622f698925baa3ab72d2512f [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 Heimesfb5faf02008-11-05 19:39:50 +000018- Issue #1210: Fixed imaplib and its documentation.
19
Christian Heimesecc42a22008-11-05 19:30:32 +000020- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
21 method on file objects with closefd=False. The file descriptor is still
22 kept open but the file object behaves like a closed file. The ``FileIO``
23 object also got a new readonly attribute ``closefd``.
24
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000025- Issue #3626: On cygwin, starting python with a non-existent script name
26 would not display anything if the file name is only 1 character long.
27
Amaury Forgeot d'Arc424b4812008-10-30 22:25:31 +000028- Issue #4176: Fixed a crash when pickling an object which ``__reduce__``
29 method does not return iterators for the 4th and 5th items.
30
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000031- Issue #3723: Fixed initialization of subinterpreters.
Christian Heimes6a27efa2008-10-30 21:48:26 +000032
Christian Heimes5833a2f2008-10-30 21:40:04 +000033- Issue #4213: The file system encoding is now normalized by the
34 codec subsystem, for example UTF-8 is turned into utf-8.
35
Christian Heimes9c94ba42008-10-30 21:34:02 +000036- Issue #4200: Changed the atexit module to store its state in its
37 PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters.
38
Christian Heimesfec925b2008-10-30 21:22:55 +000039- Issue #4237: io.FileIO() was raising invalid warnings caused by
40 insufficient initialization of PyFileIOObject struct members.
41
Amaury Forgeot d'Arcf43ee812008-10-30 20:58:42 +000042- Issue #4170: Pickling a collections.defaultdict object would crash the
43 interpreter.
44
Benjamin Peterson08a8f5f2008-10-19 14:15:00 +000045- Issue #4146: Compilation on OpenBSD has been restored.
46
Brett Cannonda780432008-10-17 03:38:50 +000047- Issue #3574: compile() incorrectly handled source code encoded as Latin-1.
48
Amaury Forgeot d'Arccf8016a2008-10-09 23:37:48 +000049- Issues #2384 and #3975: Tracebacks were not correctly printed when the
50 source file contains a ``coding:`` header: the wrong line was displayed, and
51 the encoding was not respected.
52
Martin v. Löwis4e0630c2008-10-07 13:16:28 +000053- Issue #3740: Null-initialize module state.
54
Benjamin Peterson60320cb2008-09-26 21:49:22 +000055- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object.
56
Amaury Forgeot d'Arcd0db98f2008-09-21 21:49:01 +000057- Issue #1688: On Windows, the input() prompt was not correctly displayed if it
58 contains non-ascii characters.
59
Martin v. Löwis6fea2332008-09-25 04:15:27 +000060- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
61
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +000062Library
63-------
64
Amaury Forgeot d'Arc87eee632008-10-17 20:15:53 +000065- Issue #3664: The pickle module could segfault if a subclass of Pickler fails
66 to call the base __init__ method.
67
68- Issue #3725: telnetlib now works completely in bytes.
Benjamin Peterson3de7fb82008-10-15 20:54:24 +000069
Martin v. Löwis33b64502008-10-15 05:58:17 +000070- Issue #4072: Restore build_py_2to3.
71
Martin v. Löwisd8506df2008-10-06 15:19:21 +000072- Issue #4014: Don't claim that Python has an Alpha release status, in addition
73 to claiming it is Mature.
74
Martin v. Löwis04dc25c2008-10-03 16:09:28 +000075- Issue #3187: Add sys.setfilesystemencoding.
76
Guido van Rossumf0af3e32008-10-02 18:55:37 +000077- Issue #3187: Better support for "undecodable" filenames. Code by Victor
78 Stinner, with small tweaks by GvR.
79
Martin v. Löwis601149b2008-09-29 22:19:08 +000080- Issue #3965: Allow repeated calls to turtle.Screen, by making it a
81 true singleton object.
82
Benjamin Peterson3a53fbb2008-09-27 22:04:16 +000083- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers.
84
Amaury Forgeot d'Arcb5cf3012008-09-25 22:27:43 +000085- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly
86 raise a TypeError: "'tuple' object is not callable" instead of the expected
87 dbm.error.
88
Martin v. Löwis60ebb8b2008-09-21 07:32:10 +000089- Bug #3884: Make the turtle module toplevel again.
90
Thomas Heller1308c262008-09-24 19:01:29 +000091- Issue #3547: Fixed ctypes structures bitfields of varying integer
92 sizes.
93
Gerhard Häring6117f422008-09-22 06:04:51 +000094Extension Modules
95-----------------
96
97- Issue #3659: Subclasses of str didn't work as SQL parameters.
98
Martin v. Löwisf63921f2008-10-13 11:30:30 +000099Build
100-----
101
Martin v. Löwisc820eaf2008-10-17 13:47:20 +0000102- Issue #4091: Install pythonxy.dll in system32 again.
103
Martin v. Löwisf63921f2008-10-13 11:30:30 +0000104- Issue #4018: Disable "for me" installations on Vista.
105
Martin v. Löwisb37509b2008-11-04 20:45:29 +0000106- Issue #4204: Fixed module build errors on FreeBSD 4.
107
Martin v. Löwis33b64502008-10-15 05:58:17 +0000108Tools/Demos
109-----------
110
Martin v. Löwis869bad92008-10-17 15:54:44 +0000111- Issue #3717: Fix Demo/embed/demo.c.
112
Martin v. Löwis33b64502008-10-15 05:58:17 +0000113- Issue #4072: Add a distutils demo for build_py_2to3.
114
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +0000115
Barry Warsaw8509df72008-08-21 03:02:47 +0000116What's New in Python 3.0 release candidate 1
117============================================
118
Barry Warsawb8854802008-09-18 03:00:28 +0000119*Release date: 17-Sep-2008*
Barry Warsaw8509df72008-08-21 03:02:47 +0000120
121Core and Builtins
122-----------------
123
Benjamin Peterson5e19e442008-09-10 21:47:03 +0000124- Issue #3827: memoryview lost its size attribute in favor of using len(view).
125
Hirokazu Yamamoto167b12b2008-09-09 14:01:25 +0000126- Issue #3813: could not lanch python.exe via symbolic link on cygwin.
127
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000128- Issue #3705: fix crash when given a non-ascii value on the command line for
Amaury Forgeot d'Arc8530e852008-09-09 07:28:22 +0000129 the "-c" and "-m" parameters. Now the behaviour is as expected under Linux,
130 although under Windows it fails at a later point.
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000131
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000132- Issue #3279: Importing site at interpreter was failing silently because the
133 site module uses the open builtin which was not initialized at the time.
134
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000135- Issue #3660: Corrected a reference leak in str.encode() when the encoder
136 does not return a bytes object.
137
138- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle
Amaury Forgeot d'Arc1b933ed2008-09-04 22:34:09 +0000139 error conditions.
140
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000141- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being
Brett Cannon8a9583e2008-09-04 05:04:25 +0000142 tokenized by either a file path or file pointer for the benefit of
143 PyTokenizer_FindEncoding().
144
Antoine Pitroufff95302008-09-03 18:58:51 +0000145- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On
146 these systems, the mbstowcs() function is slightly buggy and must be
147 replaced with strlen() for the purpose of counting of number of wide
148 characters needed to represent the multi-byte character string.
149
Antoine Pitrou658fad82008-09-03 18:34:34 +0000150- Issue #3697: "Fatal Python error: Cannot recover from stack overflow"
151 could be easily encountered under Windows in debug mode when exercising
152 the recursion limit checking code, due to bogus handling of recursion
153 limit when USE_STACKCHEK was enabled.
154
Brett Cannon54bd41d2008-09-02 04:01:42 +0000155- Issue 3639: The _warnings module could segfault the interpreter when
156 unexpected types were passed in as arguments.
157
Antoine Pitrouc6b09eb2008-09-01 15:10:14 +0000158- Issue #3712: The memoryview object had a reference leak and didn't support
159 cyclic garbage collection.
160
Antoine Pitrouf71995782008-08-29 18:37:05 +0000161- Issue #3668: Fix a memory leak with the "s*" argument parser in
162 PyArg_ParseTuple and friends, which occurred when the argument for "s*"
163 was correctly parsed but parsing of subsequent arguments failed.
164
Amaury Forgeot d'Arcdb26f7c2008-08-29 07:13:32 +0000165- Issue #3611: An exception __context__ could be cleared in a complex pattern
166 involving a __del__ method re-raising an exception.
167
Antoine Pitrouec569b72008-08-26 22:40:48 +0000168- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to
169 match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__
170 mechanism. In the process, fix a bug where isinstance() and issubclass(),
171 when given a tuple of classes as second argument, were looking up
172 __instancecheck__ / __subclasscheck__ on the tuple rather than on each
173 type object.
174
Antoine Pitroue2dffc02008-08-26 22:02:58 +0000175- Issue #3663: Py_None was decref'd when printing SyntaxErrors.
176
Benjamin Peterson9edd2bd2008-08-27 00:31:37 +0000177- Issue #3651: Fix various memory leaks when using the buffer
178 interface, or when the "s#" code of PyArg_ParseTuple is given a
179 bytes object.
180
Neal Norwitz6ae2eb22008-08-24 23:50:08 +0000181- Issue #3657: Fix uninitialized memory read when pickling longs.
182 Found by valgrind.
183
Neal Norwitz3ce5d922008-08-24 07:08:55 +0000184- Apply security patches from Apple.
185
Neal Norwitz2f99b242008-08-24 05:48:10 +0000186- Fix crashes on memory allocation failure found with failmalloc.
187
188- Fix memory leaks found with valgrind and update suppressions file.
189
190- Fix compiler warnings in opt mode which would lead to invalid memory reads.
191
192- Fix problem using wrong name in decimal module reported by pychecker.
193
Amaury Forgeot d'Arc20443f32008-08-22 22:05:20 +0000194- Issue #3650: Fixed a reference leak in bytes.split('x').
195
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000196- bytes(o) now tries to use o.__bytes__() before using fallbacks.
197
Gregory P. Smith207f2112008-09-07 06:29:10 +0000198- Issue #1204: The configure script now tests for additional libraries
199 that may be required when linking against readline. This fixes issues
200 with x86_64 builds on some platforms (a few Linux flavors and OpenBSD).
201
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000202C API
203-----
204
205- PyObject_Bytes and PyBytes_FromObject were added.
206
Barry Warsaw8509df72008-08-21 03:02:47 +0000207Library
208-------
209
Guido van Rossum698280d2008-09-10 17:44:35 +0000210- Issue #3756: make re.escape() handle bytes as well as str.
211
Georg Brandl7cd67cc2008-09-09 19:31:25 +0000212- Issue #3800: fix filter() related bug in formatter.py.
213
Antoine Pitrou5fe291f2008-09-06 23:00:03 +0000214- Issue #874900: fix behaviour of threading module after a fork.
215
Antoine Pitrou9e4fdf42008-09-05 23:43:02 +0000216- Issue #3535: zipfile couldn't read some zip files larger than 2GB.
217
218- Issue #3776: Deprecate the bsddb package for removal in 3.0.
219
220- Issue #3762: platform.architecture() fails if python is lanched via
221 its symbolic link.
222
Antoine Pitroud79dc622008-09-05 00:03:33 +0000223- Issue #3660: fix a memory leak in the C accelerator of the pickle module.
224
Antoine Pitrou1d6a16b2008-09-04 21:32:09 +0000225- Issue #3160: the "bdist_wininst" distutils command didn't work.
226
Guilherme Polob212b752008-09-04 11:21:31 +0000227- Issue #1658: tkinter changes dict size during iteration in both
228 tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText.
229
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000230- The bsddb module (and therefore the dbm.bsd module) has been removed.
Gregory P. Smith451e99b2008-09-04 04:46:48 +0000231 It is now maintained outside of the standard library at
232 http://www.jcea.es/programacion/pybsddb.htm.
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000233
Facundo Batistac469d4c2008-09-03 22:49:01 +0000234- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module
235 to the urlparse one. Added a DeprecationWarning in the old module, it
236 will be deprecated in the future.
237
Marc-André Lemburg7b2b1f92008-09-02 12:10:46 +0000238- Issue #3719: platform.architecture() fails if there are spaces in the
239 path to the Python binary.
240
Brett Cannonec92e182008-09-02 02:46:59 +0000241- Issue 3602: As part of the merge of r66135, make the parameters on
242 warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning.
243
Benjamin Petersonb3085c92008-09-01 23:09:31 +0000244- The deprecation warnings for the camelCase threading API names were removed.
245
Jesse Noller338f5782008-09-03 18:22:19 +0000246- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing
247 SEM_VALUE_MAX.
248
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000249Extension Modules
250-----------------
251
Antoine Pitrou9cadb1b2008-09-15 23:02:56 +0000252- Issue #3782: os.write() must not accept unicode strings.
253
Amaury Forgeot d'Arcd8976f12008-09-02 23:22:56 +0000254- Issue #2975: When compiling several extension modules with Visual Studio 2008
255 from the same python interpreter, some environment variables would grow
256 without limit.
257
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000258- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by
259 exploitation of poor argument checking.
260
Jesus Cea6ba33292008-08-31 14:12:11 +0000261- bsddb code updated to version 4.7.3pre2. This code is the same than
262 Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase.
263 The Python code is automatically translated using "2to3". Please, do not
264 update this code in Python 3.0 by hand. Update the 2.6 one and then
265 do "2to3".
266
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000267- The _bytesio and _stringio modules are now compiled into the python binary.
268
Gregory P. Smith693fc462008-09-06 20:13:06 +0000269- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of
270 mutable bytearray objects where they should have been using immutable bytes.
271
Gregory P. Smith0a608fd2008-09-06 21:34:51 +0000272- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to
273 return bytes objects instead of bytearray objects.
274
Gregory P. Smith693fc462008-09-06 20:13:06 +0000275
Neal Norwitz8f2f22a2008-08-24 20:59:23 +0000276Tools/Demos
277-----------
278
279- Fix Misc/gdbinit so it works.
280
Barry Warsaw8509df72008-08-21 03:02:47 +0000281
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000282Build
283-----
284
Hirokazu Yamamoto54a1cc62008-09-09 17:55:11 +0000285- Issue #3812: Failed to build python if configure --without-threads.
286
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000287- Issue #3791: Remove the bsddb module from the Windows installer, and the
288 core bsddb library from the Windows build files.
289
290
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000291What's new in Python 3.0b3?
292===========================
293
Barry Warsaw57c10582008-08-21 02:39:51 +0000294*Release date: 20-Aug-2008*
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000295
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000296Core and Builtins
297-----------------
298
Benjamin Petersonbc74e5b2008-08-23 20:19:17 +0000299- Issue #3653: Fix a segfault when sys.excepthook was called with invalid
300 arguments.
301
Antoine Pitrou616d2852008-08-19 22:09:34 +0000302- Issue #2394: implement more of the memoryview API, with the caveat that
303 only one-dimensional contiguous buffers are supported and exercised right
304 now. Slicing, slice assignment and comparison (equality and inequality)
305 have been added. Also, the tolist() method has been implemented, but only
306 for byte buffers. Endly, the API has been updated to return bytes objects
307 wherever it used to return bytearrays.
308
Antoine Pitrouee58fa42008-08-19 18:22:14 +0000309- Issue #3560: clean up the new C PyMemoryView API so that naming is
310 internally consistent; add macros PyMemoryView_GET_BASE() and
311 PyMemoryView_GET_BUFFER() to access useful properties of a memory views
312 without relying on a particular implementation; remove the ill-named
313 PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead).
314
Thomas Hellerf5049fc2008-08-19 19:49:49 +0000315- ctypes function pointers that are COM methods have a boolean True
316 value again.
317
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000318- Issue #1819: function calls with several named parameters are now on
319 average 35% faster (as measured by pybench).
320
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000321- The undocumented C APIs PyUnicode_AsString() and
322 PyUnicode_AsStringAndSize() were made private to the interpreter, in
323 order to be able to refine their interfaces for Python 3.1.
324
325 If you need to access the UTF-8 representation of a Unicode object
326 as bytes string, please use PyUnicode_AsUTF8String() instead.
327
Antoine Pitrouaf14b792008-08-07 21:50:41 +0000328- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks
329 to Python 3.0's stricter semantics which allow to avoid successive
330 reallocations of the result string (this also affects str.join()).
331
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000332
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000333Library
334-------
335
Hye-Shik Chang50d1f792008-08-23 08:03:03 +0000336- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve
337 a build problem on MacOS with CJK locales. It adds four temporary
338 mappings to existing legacy codecs that are virtually compatible
339 with Mac encodings. They will be replaced by codecs correctly
340 implemented in 3.1.
341
Amaury Forgeot d'Arc41e36672008-08-20 21:35:50 +0000342- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError
343 "global name 'header' is not defined".
344
Antoine Pitroufd036452008-08-19 17:56:33 +0000345- Issue #2834: update the regular expression library to match the unicode
346 standards of py3k. In other words, mixing bytes and unicode strings
347 (be it as pattern, search string or replacement string) raises a TypeError.
348 Moreover, the re.UNICODE flag is enabled automatically for unicode patterns,
349 and can be disabled by specifying a new re.ASCII flag; as for bytes
350 patterns, ASCII matching is the only option and trying to specify re.UNICODE
351 for such patterns raises a ValueError.
352
Guido van Rossum52dbbb92008-08-18 21:44:30 +0000353- Issue #3300: make urllib.parse.[un]quote() default to UTF-8.
354 Code contributed by Matt Giuca. quote() now encodes the input
355 before quoting, unquote() decodes after unquoting. There are
356 new arguments to change the encoding and errors settings.
357 There are also new APIs to skip the encode/decode steps.
358 [un]quote_plus() are also affected.
359
Nick Coghlan36f49522008-08-18 12:31:52 +0000360- Issue #2235: numbers.Number now blocks inheritance of the default id()
361 based hash because that hash mechanism is not correct for numeric types.
362 All concrete numeric types that inherit from Number (rather than just
363 registering with it) must explicitly provide a hash implementation in
364 order for their instances to be hashable.
365
Benjamin Peterson4cd6a952008-08-17 20:23:46 +0000366- Issue #2676: in the email package, content-type parsing was hanging on
367 pathological input because of quadratic or exponential behaviour of a
368 regular expression.
369
Antoine Pitrou87695762008-08-14 22:44:29 +0000370- Issue #3476: binary buffered reading through the new "io" library is now
371 thread-safe.
372
Robert Schuppenies3d1c7de2008-08-10 11:28:17 +0000373- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to
374 menu entries were not deleted.
375
Lars Gustäbel0c24e8b2008-08-02 11:43:24 +0000376- Remove the TarFileCompat class from tarfile.py.
377
Amaury Forgeot d'Arcbdbddf82008-08-01 00:06:49 +0000378- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and
379 accepts the same parameters. It just checks that its first argument is an
380 integer.
381
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000382- Issue #3394: zipfile.writestr sets external attributes when passed a
383 file name rather than a ZipInfo instance, so files are extracted with
384 mode 0600 rather than 000 under Unix.
385
Antoine Pitrouc66f9092008-07-28 19:46:11 +0000386- Issue #2523: Fix quadratic behaviour when read()ing a binary file without
387 asking for a specific length.
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000388
Martin v. Löwis371bb502008-08-16 13:02:57 +0000389Extension Modules
390-----------------
391
392- Bug #3542: Support Unicode strings in _msi module.
393
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000394What's new in Python 3.0b2?
395===========================
396
Barry Warsaw4bd1cef2008-07-18 02:28:44 +0000397*Release date: 17-Jul-2008*
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000398
399Core and Builtins
400-----------------
401
Mark Dickinson65fe25e2008-07-16 11:30:51 +0000402- Issue #3008: the float type has a new instance method 'float.hex'
403 and a new class method 'float.fromhex' to convert floating-point
404 numbers to and from hexadecimal strings, respectively.
405
Eric Smithd68af8f2008-07-16 00:15:35 +0000406- Issue #3083: Add alternate (#) formatting for bin, oct, hex output
407 for str.format(). This adds the prefix 0b, 0o, or 0x, respectively.
408
Amaury Forgeot d'Arca4db6862008-07-04 21:26:43 +0000409- Issue #3280: like chr(), the "%c" format now accepts unicode code points
410 beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On
411 "narrow Unicode" builds, the result is a string of 2 code units, forming a
412 UTF-16 surrogate pair.
413
Georg Brandld52429f2008-07-04 15:55:02 +0000414- Issue #3282: str.isprintable() should return False for undefined
415 Unicode characters.
416
Martin v. Löwis029656f2008-06-30 04:06:08 +0000417- Issue #3236: Return small longs from PyLong_FromString.
418
Benjamin Petersone6528212008-07-15 15:32:09 +0000419- Exception tracebacks now support exception chaining.
420
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000421Library
422-------
423
Brett Cannonc2542e92008-07-25 18:19:20 +0000424- Removed the sunaudio module. Use sunau instead.
425
Thomas Heller47bc8092008-08-19 06:38:12 +0000426- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python
427 api functions without holding the GIL, which could lead to a fatal
428 error when they failed.
429
430- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects.
431
Georg Brandl30704ea02008-07-23 15:07:12 +0000432- Removed "ast" function aliases from the parser module.
433
Thomas Heller15383a02008-07-15 19:46:52 +0000434- Issue #3313: Fixed a crash when a failed dlopen() call does not set
435 a valid dlerror() message.
436
Thomas Heller0261e1e2008-07-15 17:25:07 +0000437- Issue #3258: Fixed a crash when a ctypes POINTER type to an
438 incomplete structure was created.
439
Georg Brandl1abcbf82008-07-01 19:28:43 +0000440- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the
441 argument now must be a bytes object in any case.
442
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000443- Issue #3145: help("modules whatever") failed when trying to load the source
444 code of every single module of the standard library, including invalid files
445 used in the test suite.
446
Georg Brandlbded4d32008-07-17 18:15:35 +0000447- The gettext library now consistently uses Unicode strings for message ids
448 and message strings, and ``ugettext()`` and the like don't exist anymore.
Benjamin Peterson801844d2008-07-14 14:32:15 +0000449
Benjamin Petersone6528212008-07-15 15:32:09 +0000450- The traceback module has been expanded to handle chained exceptions.
451
Amaury Forgeot d'Arc612f61f2008-07-02 23:02:21 +0000452C API
453-----
454
455- Issue #3247: the function Py_FindMethod was removed. Modern types should
456 use the tp_methods slot instead.
457
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000458Tools/Demos
459-----------
460
Georg Brandl336341f2008-07-01 20:21:28 +0000461- The Mac/Demos directory has been removed.
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000462
Georg Brandl336341f2008-07-01 20:21:28 +0000463- All of the Mac scripts have been removed (including BuildApplet.py).
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000464
465
Brett Cannon0d71ee72008-05-08 18:13:40 +0000466What's new in Python 3.0b1?
467===========================
468
Barry Warsawc1e689e2008-06-19 00:35:43 +0000469*Release date: 18-Jun-2008*
Brett Cannon0d71ee72008-05-08 18:13:40 +0000470
471Core and Builtins
472-----------------
473
Brett Cannondb734912008-06-27 00:52:15 +0000474- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
475 argument being anything other than a dict or None. Also fixed a bug in error
476 handling when 'message' and 'category' were both set to None, triggering a
477 bus error.
478
Amaury Forgeot d'Arcc856c7a2008-06-16 19:50:09 +0000479- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
480 holds the last (strong) reference to its referent.
481
Georg Brandl559e5d72008-06-11 18:37:52 +0000482- Issue #2630: implement PEP 3138. repr() now returns printable
483 Unicode characters unescaped, to get an ASCII-only representation
484 of an object use ascii().
485
Amaury Forgeot d'Arcf1ca0b12008-06-11 17:40:47 +0000486- Issue #1342: On windows, Python could not start when installed in a
487 directory with non-ascii characters.
488
Martin v. Löwis1a214512008-06-11 05:26:20 +0000489- Implement PEP 3121: new module initialization and finalization API.
490
Georg Brandle1b5ac62008-06-04 13:06:58 +0000491- Removed the already-defunct ``-t`` option.
492
Amaury Forgeot d'Arc74c71f52008-05-26 21:41:42 +0000493- Issue #2957: Corrected a ValueError "recursion limit exceeded", when
494 unmarshalling many code objects, which happens when importing a
495 large .pyc file (~1000 functions).
496
Georg Brandl52b92cc2008-05-25 09:43:03 +0000497- Issue #2963: fix merging oversight that disabled method cache for
498 all types.
Georg Brandl1bcf35a2008-05-25 09:32:09 +0000499
Georg Brandlc9b09532008-05-25 09:24:38 +0000500- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
501
Georg Brandl52b92cc2008-05-25 09:43:03 +0000502- Issue #2895: Don't crash when given bytes objects as keyword names.
Georg Brandld8b690f2008-05-16 17:28:50 +0000503
Georg Brandl52b92cc2008-05-25 09:43:03 +0000504- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
505 code now allows any unicode string and returns a utf-8 encoded
506 buffer, just like the "s#" code already does. The "z" code was
507 corrected as well.
Amaury Forgeot d'Arc07404592008-05-12 13:19:07 +0000508
Georg Brandl52b92cc2008-05-25 09:43:03 +0000509- Issue #2863: generators now have a ``gen.__name__`` attribute that
510 equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
511 ``func.func_code.co_name``. The repr() of a generator now also
512 contains this name.
Alexandre Vassalottie9f305f2008-05-16 04:39:54 +0000513
514- Issue #2831: enumerate() now has a ``start`` argument.
515
Georg Brandl52b92cc2008-05-25 09:43:03 +0000516- Issue #2801: fix bug in the float.is_integer method where a
517 ValueError was sometimes incorrectly raised.
Mark Dickinsonc4352b02008-05-09 13:55:01 +0000518
Georg Brandl52b92cc2008-05-25 09:43:03 +0000519- The ``--with-toolbox-glue`` option (and the associated
520 pymactoolbox.h) have been removed.
Benjamin Peterson79629ab2008-05-14 21:07:12 +0000521
Georg Brandl52b92cc2008-05-25 09:43:03 +0000522- Issue #2196: hasattr() now lets exceptions which do not inherit
523 Exception (KeyboardInterrupt, and SystemExit) propagate instead of
524 ignoring them.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000525
Benjamin Petersoneec3d712008-06-11 15:59:43 +0000526- #3021 Exception reraising sematics have been significantly improved. However,
527 f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
528 code anymore.
529
Benjamin Peterson4f92ca42008-06-11 20:21:57 +0000530- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been
531 removed.
532
Brett Cannon0d71ee72008-05-08 18:13:40 +0000533Extension Modules
534-----------------
535
Georg Brandl38feaf02008-05-25 07:45:51 +0000536- Renamed ``_winreg`` module to ``winreg``.
537
Georg Brandl52b92cc2008-05-25 09:43:03 +0000538- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
539 platform.
Alexandre Vassalottibee32532008-05-16 18:15:12 +0000540
541- Support for Windows 9x has been removed from the winsound module.
542
Georg Brandl52b92cc2008-05-25 09:43:03 +0000543- Issue #2870: cmathmodule.c compile error.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000544
Brett Cannon0d71ee72008-05-08 18:13:40 +0000545Library
546-------
547
Benjamin Peterson87069fd2008-08-20 02:00:14 +0000548- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of
549 symtable.Symbol have been removed.
550
Amaury Forgeot d'Arccb0d2d72008-06-18 22:19:22 +0000551- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows.
552
Jeremy Hylton1afc1692008-06-18 20:49:58 +0000553- a new ``urllib`` package was created. It consists of code from
554 ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old
555 modules have all been removed. The new package has five submodules:
556 ``urllib.parse``, ``urllib.request``, ``urllib.response``,
557 ``urllib.error``, and ``urllib.robotparser``. The
558 ``urllib.request.urlopen()`` function uses the url opener from
559 ``urllib2``. (Note that the unittests have not been renamed for the
560 beta, but they will be renamed in the future.)
561
Benjamin Petersona0c0a4a2008-06-12 22:15:50 +0000562- rfc822 has been removed in favor of the email package.
563
Benjamin Peterson425ea7f2008-06-12 14:11:35 +0000564- mimetools has been removed in favor of the email package.
Benjamin Peterson23c51a22008-06-12 14:06:57 +0000565
Barry Warsawf5019422008-06-12 02:42:00 +0000566- Patch #2849: Remove use of rfc822 module from standard library.
567
Alexandre Vassalotti794652d2008-06-11 22:58:36 +0000568- Added C optimized implementation of io.StringIO.
569
Alexandre Vassalottica2d6102008-06-12 18:26:05 +0000570- The ``pickle`` module is now automatically use an optimized C
571 implementation of Pickler and Unpickler when available. The
572 ``cPickle`` module is no longer needed.
573
Georg Brandl877b10a2008-06-01 21:25:55 +0000574- Removed the ``htmllib`` and ``sgmllib`` modules.
575
Georg Brandl61013952008-05-28 15:56:30 +0000576- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have
577 been removed from ``http.cookies``.
578
Brett Cannona23810f2008-05-26 19:04:21 +0000579- The ``commands`` module has been removed. Its getoutput() and
580 getstatusoutput() functions have been moved to the ``subprocess`` module.
581
Georg Brandl3d5c4252008-05-26 18:03:26 +0000582- The ``http`` package was created; it contains the old ``httplib``
583 as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib``
584 as ``http.cookiejar``, and the content of the three ``HTTPServer``
585 modules as ``http.server``.
586
Georg Brandl38eceaa2008-05-26 11:14:17 +0000587- The ``xmlrpc`` package was created; it contains the old
588 ``xmlrpclib`` module as ``xmlrpc.client`` and the content of
589 the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000590 as ``xmlrpc.server``.
Georg Brandl38eceaa2008-05-26 11:14:17 +0000591
592- The ``dbm`` package was created, containing the old modules
593 ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having
594 ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``),
595 ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``)
596 as submodules.
597
Georg Brandl52b92cc2008-05-25 09:43:03 +0000598- The ``repr`` module has been renamed to ``reprlib``.
Alexandre Vassalotti1f2ba4b2008-05-16 07:12:44 +0000599
Georg Brandl52b92cc2008-05-25 09:43:03 +0000600- The ``statvfs`` module has been removed.
Brett Cannonacbb7862008-05-16 00:42:57 +0000601
Georg Brandl52b92cc2008-05-25 09:43:03 +0000602- Issue #1713041: fix pprint's handling of maximum depth.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000603
Georg Brandl52b92cc2008-05-25 09:43:03 +0000604- Issue #2250: Exceptions raised during evaluation of names in
605 rlcompleter's ``Completer.complete()`` method are now caught and
606 ignored.
Alexandre Vassalotti8ae3e052008-05-16 00:41:41 +0000607
Georg Brandl52b92cc2008-05-25 09:43:03 +0000608- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
609 ``TextWrapper`` class.
Alexandre Vassalotti1d1eaa42008-05-14 22:59:42 +0000610
Alexandre Vassalotti6461e102008-05-15 22:09:29 +0000611- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
612 large to fit in a C long. ldexp(x, n) now returns a zero (with
613 suitable sign) if n is large and negative; previously, it raised
614 OverflowError.
615
Georg Brandl52b92cc2008-05-25 09:43:03 +0000616- The ``ConfigParser`` module has been renamed to ``configparser``.
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000617
Georg Brandl52b92cc2008-05-25 09:43:03 +0000618- Issue #2865: webbrowser.open() works again in a KDE environment.
Amaury Forgeot d'Arc2b2b44d2008-05-12 14:41:00 +0000619
Georg Brandl52b92cc2008-05-25 09:43:03 +0000620- The ``multifile`` module has been removed.
Brett Cannond3343cb2008-05-12 03:18:21 +0000621
Georg Brandl52b92cc2008-05-25 09:43:03 +0000622- The ``SocketServer`` module has been renamed to ``socketserver``.
Alexandre Vassalottice261952008-05-12 02:31:37 +0000623
Georg Brandl52b92cc2008-05-25 09:43:03 +0000624- Fixed the ``__all__`` setting on ``collections`` to include
625 ``UserList`` and ``UserString``.
Brett Cannon23a4a7b2008-05-12 00:56:28 +0000626
Brett Cannoncf3520c2008-05-11 22:47:58 +0000627- The sre module has been removed.
628
Alexandre Vassalottif260e442008-05-11 19:59:59 +0000629- The Queue module has been renamed to queue.
630
Alexandre Vassalottif7fa63d2008-05-11 08:55:36 +0000631- The copy_reg module has been renamed to copyreg.
632
Brett Cannond8b61ee2008-05-11 03:00:26 +0000633- The mhlib module has been removed.
634
Brett Cannonbd474422008-05-10 22:42:14 +0000635- The ihooks module has been removed.
636
Brett Cannonb59a2bd2008-05-10 22:03:16 +0000637- The fpformat module has been removed.
638
Brett Cannonf4fd9932008-05-10 21:11:46 +0000639- The dircache module has been removed.
640
Brett Cannond175b4c2008-05-10 03:19:54 +0000641- The Canvas module has been removed.
642
Mark Dickinsonb27406c2008-05-09 13:42:33 +0000643- The Decimal module gained the magic methods __round__, __ceil__,
644 __floor__ and __trunc__, to give support for round, math.ceil,
645 math.floor and math.trunc.
646
Brett Cannon900ee3a2008-05-08 20:31:11 +0000647- The user module has been removed.
648
Brett Cannon34afe872008-05-08 20:31:44 +0000649- The mutex module has been removed.
650
Brett Cannon0d71ee72008-05-08 18:13:40 +0000651- The imputil module has been removed.
652
Georg Brandl52b92cc2008-05-25 09:43:03 +0000653- os.path.walk has been removed in favor of os.walk.
Benjamin Petersond71ca412008-05-08 23:44:58 +0000654
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000655- pdb gained the "until" command.
656
Georg Brandl52b92cc2008-05-25 09:43:03 +0000657- The test.test_support module has been renamed to test.support.
Benjamin Petersonee8712c2008-05-20 21:35:26 +0000658
Georg Brandl32de7af2008-08-18 23:07:41 +0000659- The threading module API was renamed to be PEP 8 compliant. The
660 old names are still present, but will be removed in the near future.
Benjamin Peterson672b8032008-06-11 19:14:14 +0000661
Georg Brandl294d5a92008-06-01 19:25:32 +0000662Tools/Demos
663-----------
664
665- The bgen tool has been removed.
Benjamin Peterson630c8292008-06-01 18:50:38 +0000666
Brett Cannon0d71ee72008-05-08 18:13:40 +0000667Build
668-----
669
670
Barry Warsaw66079cd2008-04-04 01:36:36 +0000671What's New in Python 3.0a5?
672===========================
673
Barry Warsaw9eab8b02008-05-08 13:05:38 +0000674*Release date: 08-May-2008*
Barry Warsaw66079cd2008-04-04 01:36:36 +0000675
676Core and Builtins
677-----------------
678
Georg Brandl52b92cc2008-05-25 09:43:03 +0000679- Fixed misbehaviour of PyLong_FromSsize_t on systems where
680 sizeof(size_t) > sizeof(long).
Mark Dickinson7ab6be22008-04-15 21:42:42 +0000681
Georg Brandl52b92cc2008-05-25 09:43:03 +0000682- Issue #2221: Corrected a SystemError "error return without exception
683 set", when the code executed by exec() raises an exception, and
684 sys.stdout.flush() also raises an error.
Amaury Forgeot d'Arc7fedbe52008-04-10 21:03:09 +0000685
Georg Brandl52b92cc2008-05-25 09:43:03 +0000686- Bug #2565: The repr() of type objects now calls them 'class', not
687 'type' - whether they are builtin types or not.
Martin v. Löwis250ad612008-04-07 05:43:42 +0000688
Martin v. Löwis790465f2008-04-05 20:41:37 +0000689- The command line processing was converted to pass Unicode strings
690 through as unmodified as possible; as a consequence, the C API
691 related to command line arguments was changed to use wchar_t.
692
Georg Brandl52b92cc2008-05-25 09:43:03 +0000693- All backslashes in raw strings are interpreted literally. This
694 means that '\u' and '\U' escapes are not treated specially.
Benjamin Petersona2f837f2008-04-28 21:05:10 +0000695
Barry Warsaw66079cd2008-04-04 01:36:36 +0000696Extension Modules
697-----------------
698
699Library
700-------
701
Georg Brandl52b92cc2008-05-25 09:43:03 +0000702- ctypes objects now support the PEP3118 buffer interface.
Thomas Hellerb041fda2008-04-30 17:11:46 +0000703
Thomas Hellere106dc32008-04-24 18:39:36 +0000704- Issue #2682: ctypes callback functions now longer contain a cyclic
705 reference to themselves.
706
Georg Brandl52b92cc2008-05-25 09:43:03 +0000707- Issue #2058: Remove the buf attribute and add __slots__ to the
708 TarInfo class in order to reduce tarfile's memory usage.
Lars Gustäbelc2ea8c62008-04-14 10:05:48 +0000709
Martin v. Löwis8efc62c2008-04-10 19:02:25 +0000710- Bug #2606: Avoid calling .sort() on a dict_keys object.
711
Thomas Hellerbff533b2008-04-04 19:53:14 +0000712- The bundled libffi copy is now in sync with the recently released
713 libffi3.0.5 version, apart from some small changes to
714 Modules/_ctypes/libffi/configure.ac.
715
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000716Build
717-----
718
Mark Dickinsonb0e2b4c2008-04-26 20:48:56 +0000719- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
720
Guido van Rossumdc21db32008-04-07 18:37:41 +0000721- "make install" is now an alias for "make altinstall", to prevent
Georg Brandl52b92cc2008-05-25 09:43:03 +0000722 accidentally overwriting a Python 2.x installation. Use "make
723 fullinstall" to force Python 3.0 to be installed as "python".
Guido van Rossumdc21db32008-04-07 18:37:41 +0000724
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000725- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
726 gcc is used as compiler.
Barry Warsaw66079cd2008-04-04 01:36:36 +0000727
Georg Brandl52b92cc2008-05-25 09:43:03 +0000728
Barry Warsawa9d499d2008-03-01 18:38:07 +0000729What's New in Python 3.0a4?
730===========================
731
Barry Warsawbb5cd082008-04-02 23:33:27 +0000732*Release date: 02-Apr-2008*
Barry Warsawa9d499d2008-03-01 18:38:07 +0000733
Martin v. Löwis25931462008-03-17 20:43:42 +0000734Core and Builtins
735-----------------
736
737- Bug #2301: Don't try decoding the source code into the original
738 encoding for syntax errors.
739
Martin v. Löwis92fab752008-03-08 10:40:41 +0000740Extension Modules
741-----------------
742
Neal Norwitz6cf49cf2008-03-24 06:22:57 +0000743- The dl module was removed, use the ctypes module instead.
744
Martin v. Löwis92fab752008-03-08 10:40:41 +0000745- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +0000746
Martin v. Löwis071ef772008-03-08 11:24:24 +0000747Library
748-------
749
Georg Brandl52b92cc2008-05-25 09:43:03 +0000750- The class distutils.commands.build_py.build_py_2to3 can be used as a
751 build_py replacement to automatically run 2to3 on modules that are
752 going to be installed.
Martin v. Löwis73a22f02008-03-22 00:35:10 +0000753
Guido van Rossumf4169812008-03-17 22:56:06 +0000754- A new pickle protocol (protocol 3) is added with explicit support
755 for bytes. This is the default protocol. It intentionally cannot
756 be unpickled by Python 2.x.
757
758- When a pickle written by Python 2.x contains an (8-bit) str
759 instance, this is now decoded to a (Unicode) str instance. The
760 encoding used to do this defaults to ASCII, but can be overridden
761 via two new keyword arguments to the Unpickler class. Previously
762 this would create bytes instances, which is usually wrong: str
763 instances are often used to pickle attribute names etc., and text is
764 more common than binary data anyway.
765
Martin v. Löwis071ef772008-03-08 11:24:24 +0000766- Default to ASCII as the locale.getpreferredencoding, if the POSIX
Georg Brandl52b92cc2008-05-25 09:43:03 +0000767 system doesn't support CODESET and LANG isn't set or doesn't allow
768 deduction of an encoding.
Martin v. Löwis071ef772008-03-08 11:24:24 +0000769
Georg Brandl52b92cc2008-05-25 09:43:03 +0000770- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
771 value.
Gregory P. Smith425136b2008-03-17 20:45:21 +0000772
Georg Brandl52b92cc2008-05-25 09:43:03 +0000773- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
774 has been renamed tokenize and now works with bytes rather than
775 strings. A new detect_encoding function has been added for
776 determining source file encoding according to PEP-0263. Token
777 sequences returned by tokenize always start with an ENCODING token
778 which specifies the encoding used to decode the file. This token is
779 used to encode the output of untokenize back to bytes.
780
Barry Warsawa9d499d2008-03-01 18:38:07 +0000781
Christian Heimesbc873412007-12-08 22:11:32 +0000782What's New in Python 3.0a3?
783===========================
784
Barry Warsaw659fc422008-03-01 17:45:23 +0000785*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +0000786
787Core and Builtins
788-----------------
789
Georg Brandl52b92cc2008-05-25 09:43:03 +0000790- Issue #2282: io.TextIOWrapper was not overriding seekable() from
791 io.IOBase.
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +0000792
Georg Brandl52b92cc2008-05-25 09:43:03 +0000793- Issue #2115: Important speedup in setting __slot__ attributes. Also
794 prevent a possible crash: an Abstract Base Class would try to access
795 a slot on a registered virtual subclass.
Christian Heimesa156e092008-02-16 07:38:31 +0000796
Georg Brandl52b92cc2008-05-25 09:43:03 +0000797- Fixed repr() and str() of complex numbers with infinity or nan as
798 real or imaginary part.
Christian Heimesa156e092008-02-16 07:38:31 +0000799
Georg Brandl52b92cc2008-05-25 09:43:03 +0000800- Clear all free list during a gc.collect() of the highest generation
801 in order to allow pymalloc to free more arenas. Python may give back
802 memory to the OS earlier.
Christian Heimesa156e092008-02-16 07:38:31 +0000803
Georg Brandl52b92cc2008-05-25 09:43:03 +0000804- Issue #2045: Fix an infinite recursion triggered when printing a
805 subclass of collections.defaultdict, if its default_factory is set
806 to a bound method.
Christian Heimesa156e092008-02-16 07:38:31 +0000807
808- Fixed a minor memory leak in dictobject.c. The content of the free
809 list was not freed on interpreter shutdown.
810
Georg Brandl52b92cc2008-05-25 09:43:03 +0000811- Limit free list of method and builtin function objects to 256
812 entries each.
Christian Heimesa156e092008-02-16 07:38:31 +0000813
Georg Brandl52b92cc2008-05-25 09:43:03 +0000814- Patch #1953: Added ``sys._compact_freelists()`` and the C API
815 functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
Christian Heimesa156e092008-02-16 07:38:31 +0000816 to compact the internal free lists of pre-allocted ints and floats.
817
818- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
Georg Brandl52b92cc2008-05-25 09:43:03 +0000819 Python expected the return type int but the fork familie returns
820 pi_t.
Christian Heimesa156e092008-02-16 07:38:31 +0000821
Georg Brandl52b92cc2008-05-25 09:43:03 +0000822- Issue #1678380: Fix a bug that identifies 0j and -0j when they
823 appear in the same code unit.
Christian Heimesa156e092008-02-16 07:38:31 +0000824
Georg Brandl52b92cc2008-05-25 09:43:03 +0000825- Issue #2025: Added tuple.count() and tuple.index() methods to comply
826 with the collections.Sequence API.
Raymond Hettinger65baa342008-02-07 00:41:02 +0000827
Georg Brandl52b92cc2008-05-25 09:43:03 +0000828- Fixed multiple reinitialization of the Python interpreter. The small
829 int list in longobject.c has caused a seg fault during the third
830 finalization.
Christian Heimesdfc12ed2008-01-31 15:16:38 +0000831
Georg Brandl52b92cc2008-05-25 09:43:03 +0000832- Issue #1973: bytes.fromhex('') raised SystemError.
Christian Heimesc04dac02008-01-30 11:27:57 +0000833
Georg Brandl52b92cc2008-05-25 09:43:03 +0000834- Issue #1771: remove cmp parameter from sorted() and list.sort().
Raymond Hettinger70b64fc2008-01-30 20:15:17 +0000835
Georg Brandl52b92cc2008-05-25 09:43:03 +0000836- Issue #1969: split and rsplit in bytearray are inconsistent.
Christian Heimes7b876152008-01-30 09:51:48 +0000837
Georg Brandl52b92cc2008-05-25 09:43:03 +0000838- map() no longer accepts None for the first argument. Use zip()
839 instead.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000840
Facundo Batista2336bdd2008-01-19 19:12:01 +0000841- Issue #1769: Now int("- 1") is not allowed any more.
842
Georg Brandl52b92cc2008-05-25 09:43:03 +0000843- Object/longobject.c: long(float('nan')) raises an OverflowError
844 instead of returning 0.
Christian Heimes386cd1e2008-01-15 02:01:20 +0000845
Georg Brandl52b92cc2008-05-25 09:43:03 +0000846- Issue #1762972: __file__ points to the source file instead of the
847 pyc/pyo file if the py file exists.
Christian Heimes3b06e532008-01-07 20:12:44 +0000848
Guido van Rossumab078dd2008-01-06 00:09:11 +0000849- Issue #1393: object_richcompare() returns NotImplemented instead of
850 False if the objects aren't equal, to give the other side a chance.
851
Guido van Rossume239b002008-01-06 00:44:20 +0000852- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000853
Georg Brandl52b92cc2008-05-25 09:43:03 +0000854- Improve some exception messages when Windows fails to load an
855 extension module. Now we get for example '%1 is not a valid Win32
856 application' instead of 'error code 193'. Also use Unicode strings
857 to deal with non-English locales.
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000858
Georg Brandl52b92cc2008-05-25 09:43:03 +0000859- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
860 Python C API has gained a new type *PyInstanceMethod_Type* and the
861 functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
862 and *PyInstanceMethod_Function(im)*.
Christian Heimesa3534a62007-12-11 19:56:40 +0000863
Georg Brandl52b92cc2008-05-25 09:43:03 +0000864- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
865 from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
866 are now enough to print the corresponding list of objects considered
867 by the garbage collector.
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000868
Georg Brandl52b92cc2008-05-25 09:43:03 +0000869- Issue #1573: Improper use of the keyword-only syntax makes the
870 parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000871
Georg Brandl52b92cc2008-05-25 09:43:03 +0000872- Issue #1564: The set implementation should special-case PyUnicode
873 instead of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000874
Guido van Rossumea6775b2008-02-21 20:16:31 +0000875- Patch #1031213: Decode source line in SyntaxErrors back to its
876 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000877
Christian Heimes09aaa882008-02-23 15:01:06 +0000878- inspect.getsource() includes the decorators again.
879
Guido van Rossumea6775b2008-02-21 20:16:31 +0000880- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
881 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000882
Georg Brandl52b92cc2008-05-25 09:43:03 +0000883- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
884 the first chunk fed to the decoder started with a BOM, but was
885 longer than 3 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000886
Christian Heimesbc873412007-12-08 22:11:32 +0000887Extension Modules
888-----------------
889
Georg Brandl52b92cc2008-05-25 09:43:03 +0000890- Code for itertools ifilter(), imap(), and izip() moved to bultins
891 and renamed to filter(), map(), and zip(). Also, renamed
892 izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000893
Georg Brandl52b92cc2008-05-25 09:43:03 +0000894- Issue #1762972: Readded the reload() function as imp.reload().
Guido van Rossumea6775b2008-02-21 20:16:31 +0000895
Georg Brandl52b92cc2008-05-25 09:43:03 +0000896- Bug #2111: mmap segfaults when trying to write a block opened with
897 PROT_READ.
Christian Heimesa156e092008-02-16 07:38:31 +0000898
Georg Brandl52b92cc2008-05-25 09:43:03 +0000899- Issue #2063: correct order of utime and stime in os.times() result
900 on Windows.
Christian Heimes7131fd92008-02-19 14:21:46 +0000901
Christian Heimesbc873412007-12-08 22:11:32 +0000902Library
903-------
904
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000905- Weakref dictionaries now inherit from MutableMapping.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000906
Georg Brandl52b92cc2008-05-25 09:43:03 +0000907- Created new UserDict class in collections module. This one inherits
908 from and complies with the MutableMapping ABC. Also, moved
909 UserString and UserList to the collections module. The
910 MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000911
Guido van Rossumea6775b2008-02-21 20:16:31 +0000912- Removed UserDict.DictMixin. Replaced all its uses with
913 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000914
Guido van Rossume239b002008-01-06 00:44:20 +0000915- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000916
Guido van Rossume239b002008-01-06 00:44:20 +0000917- Issue #1585: IDLE uses non-existent xrange() function.
918
919- Issue #1578: Problems in win_getpass.
920
Georg Brandl52d168a2008-01-07 18:10:24 +0000921Build
922-----
923
Georg Brandl52b92cc2008-05-25 09:43:03 +0000924- Renamed --enable-unicode configure flag to --with-wide-unicode,
925 since Unicode strings can't be disabled anymore.
Georg Brandl52d168a2008-01-07 18:10:24 +0000926
Guido van Rossume239b002008-01-06 00:44:20 +0000927C API
928-----
929
930- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
931 Py_TYPE and Py_REFCNT.
932
Georg Brandl52b92cc2008-05-25 09:43:03 +0000933- New API PyImport_ImportModuleNoBlock(), works like
934 PyImport_ImportModule() but won't block on the import lock
935 (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000936
Christian Heimesbc873412007-12-08 22:11:32 +0000937
Fred Drake0e474a82007-10-11 18:01:43 +0000938What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000939===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000940
Guido van Rossum99533a92007-12-06 05:07:41 +0000941*Release date: 07-Dec-2007*
942
943(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000944
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000945Core and Builtins
946-----------------
947
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000948- str8 now has the same construction signature as bytes.
949
Georg Brandl52b92cc2008-05-25 09:43:03 +0000950- Comparisons between str and str8 now return False/True for ==/!=.
951 sqlite3 returns str8 when recreating on object from it's __conform__
952 value. The struct module returns str8 for all string-related
953 formats. This was true before this change, but becomes more
954 apparent thanks to string comparisons always being False.
Brett Cannon40430012007-10-22 20:24:51 +0000955
Georg Brandl52b92cc2008-05-25 09:43:03 +0000956- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
957 buffer, encoding, newline)`.
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000958
959- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
960
961- Changed `__file__` and `co_filename` to unicode. The path names are decoded
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000962 with `Py_FileSystemDefaultEncoding` and a new API method
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000963 `PyUnicode_DecodeFSDefault(char*)` was added.
964
Georg Brandl52b92cc2008-05-25 09:43:03 +0000965- io.open() and _fileio.FileIO have grown a new argument closefd. A
966 false value disables the closing of the file descriptor.
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000967
Georg Brandl52b92cc2008-05-25 09:43:03 +0000968- Added a new option -b to issues warnings (-bb for errors) about
969 certain operations between bytes/buffer and str like str(b'') and
970 comparison.
Guido van Rossum98297ee2007-11-06 21:34:58 +0000971
Georg Brandl52b92cc2008-05-25 09:43:03 +0000972- The standards streams sys.stdin, stdout and stderr may be None when
973 the when the C runtime library returns an invalid file descriptor
974 for the streams (fileno(stdin) < 0). For now this happens only for
975 Windows GUI apps and scripts started with `pythonw.exe`.
Christian Heimes58cb1b82007-11-13 02:19:40 +0000976
Christian Heimesbce52be2007-11-17 19:08:41 +0000977- Added PCbuild9 directory for VS 2008.
978
Georg Brandl52b92cc2008-05-25 09:43:03 +0000979- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
980 work around a name clash with VS 2008 on Windows.
Christian Heimesbce52be2007-11-17 19:08:41 +0000981
Georg Brandl52b92cc2008-05-25 09:43:03 +0000982- Unbound methods are gone for good. ClassObject.method returns an
983 ordinary function object, instance.method still returns a bound
984 method object. The API of bound methods is cleaned up, too. The
985 im_class attribute is removed and im_func + im_self are renamed to
986 __func__ and __self__. The factory PyMethod_New takes only func and
987 instance as argument.
Christian Heimesff737952007-11-27 10:40:20 +0000988
Georg Brandl52b92cc2008-05-25 09:43:03 +0000989- intobject.h is no longer included by Python.h. The remains were
990 moved to longobject.h. It still exists to define several aliases
991 from PyInt_ to PyLong_ functions.
Christian Heimesf78b1c62007-12-02 16:52:32 +0000992
Christian Heimesa37d4c62007-12-04 23:02:19 +0000993- Removed sys.maxint, use sys.maxsize instead.
994
Fred Drake0e474a82007-10-11 18:01:43 +0000995Extension Modules
996-----------------
997
998- The `hotshot` profiler has been removed; use `cProfile` instead.
999
Brett Cannone9fd2312007-10-12 19:18:19 +00001000Library
1001-------
1002
Georg Brandl52b92cc2008-05-25 09:43:03 +00001003- When loading an external file using testfile(), the passed-in
1004 encoding argument was being ignored if __loader__ is defined and
1005 forcing the source to be UTF-8.
Brett Cannone9fd2312007-10-12 19:18:19 +00001006
Georg Brandl52b92cc2008-05-25 09:43:03 +00001007- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
1008 been removed in favor of the tempfile module.
Guido van Rossum687b9c02007-10-25 23:18:51 +00001009
Christian Heimesc9543e42007-11-28 08:28:28 +00001010- Removed the 'new' module.
1011
Georg Brandl52b92cc2008-05-25 09:43:03 +00001012- Removed all types from the 'types' module that are easily accessable
1013 through builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +00001014
Georg Brandl52d168a2008-01-07 18:10:24 +00001015
Guido van Rossum4405cf32007-08-30 17:16:55 +00001016What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +00001017==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +00001018
Guido van Rossum4405cf32007-08-30 17:16:55 +00001019*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +00001020
1021Core and Builtins
1022-----------------
1023
Martin v. Löwis47383402007-08-15 07:32:56 +00001024- PEP 3131: Support non-ASCII identifiers.
1025
Martin v. Löwis447d33e2007-07-29 18:10:01 +00001026- PEP 3120: Change default encoding to UTF-8.
1027
Martin v. Löwis9f2e3462007-07-21 17:22:18 +00001028- PEP 3123: Use proper C inheritance for PyObject.
1029
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001030- Removed the __oct__ and __hex__ special methods and added a bin()
1031 builtin function.
1032
Georg Brandl52b92cc2008-05-25 09:43:03 +00001033- PEP 3127: octal literals now start with "0o". Old-style octal
1034 literals are invalid. There are binary literals with a prefix of
1035 "0b". This also affects int(x, 0).
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001036
Guido van Rossume7ba4952007-06-06 23:52:48 +00001037- None, True, False are now keywords.
1038
Guido van Rossum29478ef2007-05-29 00:39:44 +00001039- PEP 3119: isinstance() and issubclass() can be overridden.
1040
Guido van Rossumebe3e162007-05-17 18:20:34 +00001041- Remove BaseException.message.
1042
Guido van Rossum1bc535d2007-05-15 18:46:22 +00001043- Remove tuple parameter unpacking (PEP 3113).
1044
Georg Brandl52b92cc2008-05-25 09:43:03 +00001045- Remove the f_restricted attribute from frames. This naturally leads
1046 to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
Guido van Rossuma8add0e2007-05-14 22:03:55 +00001047
Georg Brandl52b92cc2008-05-25 09:43:03 +00001048- PEP 3132 was accepted. That means that you can do ``a, *b =
1049 range(5)`` to assign 0 to a and [1, 2, 3, 4] to b.
Guido van Rossum0368b722007-05-11 16:50:42 +00001050
Georg Brandl52b92cc2008-05-25 09:43:03 +00001051- range() now returns an iterator rather than a list. Floats are not
1052 allowed. xrange() is no longer defined.
Guido van Rossum805365e2007-05-07 22:24:25 +00001053
Nick Coghlan650f0d02007-04-15 12:05:43 +00001054- Patch #1660500: hide iteration variable in list comps, add set comps
Georg Brandl52b92cc2008-05-25 09:43:03 +00001055 and use common code to handle compilation of iterative expressions.
Nick Coghlan650f0d02007-04-15 12:05:43 +00001056
Guido van Rossume27dc722007-03-27 22:37:34 +00001057- By default, != returns the opposite of ==, unless the latter returns
1058 NotImplemented.
1059
Georg Brandl52b92cc2008-05-25 09:43:03 +00001060- Patch #1680961: sys.exitfunc has been removed and replaced with a
1061 private C-level API.
Collin Winter670e6922007-03-21 02:57:17 +00001062
Georg Brandl801dd732007-03-18 20:18:31 +00001063- PEP 3115: new metaclasses: the metaclass is now specified as a
Georg Brandl52b92cc2008-05-25 09:43:03 +00001064 keyword arg in the class statement, which can now use the full
1065 syntax of a parameter list. Also, the metaclass can implement a
1066 __prepare__ function which will be called to create the dictionary
1067 for the new class namespace.
Georg Brandl801dd732007-03-18 20:18:31 +00001068
Georg Brandl428f0642007-03-18 18:35:15 +00001069- The long-deprecated argument "pend" of PyFloat_FromString() has been
1070 removed.
1071
Georg Brandle32b4222007-03-10 22:13:27 +00001072- The dir() function has been extended to call the __dir__() method on
Georg Brandl52b92cc2008-05-25 09:43:03 +00001073 its argument, if it exists. If not, it will work like before. This
1074 allows customizing the output of dir() in the presence of a
1075 __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +00001076
Neal Norwitz8dfc4a92007-08-11 06:39:53 +00001077- Removed support for __members__ and __methods__.
1078
Georg Brandle32b4222007-03-10 22:13:27 +00001079- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +00001080
Georg Brandle32b4222007-03-10 22:13:27 +00001081- input() became raw_input(): the name input() now implements the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001082 functionality formerly known as raw_input(); the name raw_input() is
1083 no longer defined.
Guido van Rossum0240b922007-02-26 21:23:50 +00001084
Georg Brandl52b92cc2008-05-25 09:43:03 +00001085- Classes listed in an 'except' clause must inherit from
1086 BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +00001087
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001088- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +00001089 and .keys(), .items(), .values() return dict views, which behave
1090 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001091
Guido van Rossum8b545362007-02-09 23:52:14 +00001092- PEP 3105: print is now a function. Also (not in the PEP) the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001093 'softspace' attribute of files is now gone (since print() doesn't
1094 use it). A side effect of this change is that you can get
1095 incomplete output lines in interactive sessions:
Guido van Rossum8b545362007-02-09 23:52:14 +00001096
1097 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +00001098 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +00001099
1100 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +00001101
Brett Cannon398db8b2007-01-29 23:44:37 +00001102- PEP 3102: keyword-only arguments.
1103
Georg Brandl52b92cc2008-05-25 09:43:03 +00001104- Int/Long unification is complete. The 'long' built-in type and
1105 literals with trailing 'L' or 'l' have been removed. Performance
1106 may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +00001107
1108- 'except E, V' must now be spelled as 'except E as V' and deletes V
1109 at the end of the except clause; V must be a simple name.
1110
Neal Norwitzc1505362006-12-28 06:47:50 +00001111- Added function annotations per PEP 3107.
1112
Georg Brandl52b92cc2008-05-25 09:43:03 +00001113- Added nonlocal declaration from PEP 3104:
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +00001114
1115 >>> def f(x):
1116 ... def inc():
1117 ... nonlocal x
1118 ... x += 1
1119 ... return x
1120 ... return inc
1121 ...
1122 >>> inc = f(0)
1123 >>> inc()
1124 1
1125 >>> inc()
1126 2
1127
Georg Brandl66a796e2006-12-19 20:50:34 +00001128- Moved intern() to sys.intern().
1129
1130- exec is now a function.
1131
1132- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +00001133
Neal Norwitz4886cc32006-08-21 17:06:07 +00001134- Classic classes are a thing of the past. All classes are new style.
1135
1136- Exceptions *must* derive from BaseException.
1137
1138- Integer division always returns a float. The -Q option is no more.
1139 All the following are gone:
1140 * PyNumber_Divide and PyNumber_InPlaceDivide
1141 * __div__, __rdiv__, and __idiv__
1142 * nb_divide, nb_inplace_divide
1143 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
1144 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
1145 if we want to re-use __div__ and friends. If we do, it will make
1146 it harder to write code for both 2.x and 3.x.)
1147
1148- 'as' and 'with' are keywords.
1149
1150- Absolute import is the default behavior for 'import foo' etc.
1151
Georg Brandl52b92cc2008-05-25 09:43:03 +00001152- Removed support for syntax: backticks (ie, `x`), <>.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001153
Georg Brandl52b92cc2008-05-25 09:43:03 +00001154- Removed these Python builtins: apply(), callable(), coerce(),
1155 execfile(), file(), reduce(), reload().
Neal Norwitz4886cc32006-08-21 17:06:07 +00001156
Georg Brandl52b92cc2008-05-25 09:43:03 +00001157- Removed these Python methods: {}.has_key.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001158
Georg Brandl52b92cc2008-05-25 09:43:03 +00001159- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001160
1161- Remove C API support for restricted execution.
1162
Guido van Rossumcf1be882007-08-30 22:07:17 +00001163- zip(), map() and filter() now return iterators, behaving like their
Georg Brandl52b92cc2008-05-25 09:43:03 +00001164 itertools counterparts. This also affect map()'s behavior on
Guido van Rossumcf1be882007-08-30 22:07:17 +00001165 sequences of unequal length -- it now stops after the shortest one
1166 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001167
Georg Brandl52b92cc2008-05-25 09:43:03 +00001168- Additions: set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001169
1170- Added class decorators per PEP 3129.
1171
1172
1173Extension Modules
1174-----------------
1175
Georg Brandl52b92cc2008-05-25 09:43:03 +00001176- Removed the imageop module. Obsolete long with its unit tests
1177 becoming useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001178
Georg Brandl52b92cc2008-05-25 09:43:03 +00001179- Removed these attributes from the operator module: div, idiv,
1180 __div__, __idiv__, isCallable, sequenceIncludes.
1181
1182- Removed these attributes from the sys module: exc_clear(), exc_type,
1183 exc_value, exc_traceback.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001184
1185
1186Library
1187-------
1188
Georg Brandl52b92cc2008-05-25 09:43:03 +00001189- Removed the compiler package. Use of the _ast module and (an
1190 eventual) AST -> bytecode mechanism.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001191
Georg Brandl52b92cc2008-05-25 09:43:03 +00001192- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
1193 linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
1194 stringold, strop, sunaudiodev, timing, xmllib.
Guido van Rossum33d26892007-08-05 15:29:28 +00001195
Georg Brandl52b92cc2008-05-25 09:43:03 +00001196- Moved the toaiff module to Tools/Demos.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001197
Georg Brandl52b92cc2008-05-25 09:43:03 +00001198- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
1199 DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
1200 IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001201
Georg Brandl52b92cc2008-05-25 09:43:03 +00001202- Removed obsolete functions: commands.getstatus(), os.popen*().
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001203
Georg Brandl52b92cc2008-05-25 09:43:03 +00001204- Removed functions in the string module that are also string methods;
Martin v. Löwis967f1e32007-08-14 09:23:10 +00001205 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001206
Georg Brandl52b92cc2008-05-25 09:43:03 +00001207- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001208
Georg Brandl52b92cc2008-05-25 09:43:03 +00001209- Removed xmlrpclib.SlowParser. It was based on xmllib.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001210
1211- Patch #1680961: atexit has been reimplemented in C.
1212
Walter Dörwald41980ca2007-08-16 21:55:45 +00001213- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
1214
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001215Build
1216-----
1217
1218C API
1219-----
1220
Georg Brandl52b92cc2008-05-25 09:43:03 +00001221- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001222
Georg Brandl52b92cc2008-05-25 09:43:03 +00001223- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
1224 PyMember_Get, PyMember_Set.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001225
Georg Brandl52b92cc2008-05-25 09:43:03 +00001226- Removed these C slots/fields: nb_divide, nb_inplace_divide.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001227
Georg Brandl52b92cc2008-05-25 09:43:03 +00001228- Removed these macros: staticforward, statichere, PyArg_GetInt,
1229 PyArg_NoArgs, _PyObject_Del.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001230
Georg Brandl52b92cc2008-05-25 09:43:03 +00001231- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
1232 intintobjargproc, getreadbufferproc, getwritebufferproc,
1233 getsegcountproc, getcharbufferproc, memberlist.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001234
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001235Tests
1236-----
1237
Brett Cannone7a30f72008-03-03 03:36:27 +00001238- Removed test.testall as test.regrtest replaces it.
1239
Brett Cannonced04e02005-02-13 22:53:22 +00001240Documentation
1241-------------
1242
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001243Mac
1244---
1245
Georg Brandl52b92cc2008-05-25 09:43:03 +00001246- The cfmfile module was removed.
Guido van Rossume7ba4952007-06-06 23:52:48 +00001247
Guido van Rossum845702c2007-08-30 18:44:53 +00001248Platforms
1249---------
1250
1251- Support for BeOS and AtheOS was removed (according to PEP 11).
1252
1253- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
1254
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001255Tools/Demos
1256-----------
1257
Georg Brandl52b92cc2008-05-25 09:43:03 +00001258
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001259**(For information about older versions, consult the HISTORY file.)**