blob: 7750d817a5d222e115e1d304b1ee2f2c7829d812 [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
Benjamin Petersond968e272008-11-05 22:48:33 +000018- Issue #4211: The __path__ attribute of frozen packages is now a list instead
19 of a string as required by PEP 302.
20
Benjamin Peterson93ef79c2008-11-05 22:49:09 +000021- Issue #3727: Fixed poplib.
Christian Heimesd3956292008-11-05 19:48:27 +000022
Christian Heimes933238a2008-11-05 19:44:21 +000023- Issue #3714: Fixed nntplib by using bytes where appropriate.
24
Christian Heimesfb5faf02008-11-05 19:39:50 +000025- Issue #1210: Fixed imaplib and its documentation.
26
Christian Heimesecc42a22008-11-05 19:30:32 +000027- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
28 method on file objects with closefd=False. The file descriptor is still
29 kept open but the file object behaves like a closed file. The ``FileIO``
30 object also got a new readonly attribute ``closefd``.
31
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000032- Issue #3626: On cygwin, starting python with a non-existent script name
33 would not display anything if the file name is only 1 character long.
34
Amaury Forgeot d'Arc424b4812008-10-30 22:25:31 +000035- Issue #4176: Fixed a crash when pickling an object which ``__reduce__``
36 method does not return iterators for the 4th and 5th items.
37
Amaury Forgeot d'Arcdd8059f2008-10-30 23:03:32 +000038- Issue #3723: Fixed initialization of subinterpreters.
Christian Heimes6a27efa2008-10-30 21:48:26 +000039
Christian Heimes5833a2f2008-10-30 21:40:04 +000040- Issue #4213: The file system encoding is now normalized by the
41 codec subsystem, for example UTF-8 is turned into utf-8.
42
Christian Heimes9c94ba42008-10-30 21:34:02 +000043- Issue #4200: Changed the atexit module to store its state in its
44 PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters.
45
Christian Heimesfec925b2008-10-30 21:22:55 +000046- Issue #4237: io.FileIO() was raising invalid warnings caused by
47 insufficient initialization of PyFileIOObject struct members.
48
Amaury Forgeot d'Arcf43ee812008-10-30 20:58:42 +000049- Issue #4170: Pickling a collections.defaultdict object would crash the
50 interpreter.
51
Benjamin Peterson08a8f5f2008-10-19 14:15:00 +000052- Issue #4146: Compilation on OpenBSD has been restored.
53
Brett Cannonda780432008-10-17 03:38:50 +000054- Issue #3574: compile() incorrectly handled source code encoded as Latin-1.
55
Amaury Forgeot d'Arccf8016a2008-10-09 23:37:48 +000056- Issues #2384 and #3975: Tracebacks were not correctly printed when the
57 source file contains a ``coding:`` header: the wrong line was displayed, and
58 the encoding was not respected.
59
Martin v. Löwis4e0630c2008-10-07 13:16:28 +000060- Issue #3740: Null-initialize module state.
61
Benjamin Peterson60320cb2008-09-26 21:49:22 +000062- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object.
63
Amaury Forgeot d'Arcd0db98f2008-09-21 21:49:01 +000064- Issue #1688: On Windows, the input() prompt was not correctly displayed if it
65 contains non-ascii characters.
66
Martin v. Löwis6fea2332008-09-25 04:15:27 +000067- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
68
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +000069Library
70-------
71
Amaury Forgeot d'Arc87eee632008-10-17 20:15:53 +000072- Issue #3664: The pickle module could segfault if a subclass of Pickler fails
73 to call the base __init__ method.
74
75- Issue #3725: telnetlib now works completely in bytes.
Benjamin Peterson3de7fb82008-10-15 20:54:24 +000076
Martin v. Löwis33b64502008-10-15 05:58:17 +000077- Issue #4072: Restore build_py_2to3.
78
Martin v. Löwisd8506df2008-10-06 15:19:21 +000079- Issue #4014: Don't claim that Python has an Alpha release status, in addition
80 to claiming it is Mature.
81
Martin v. Löwis04dc25c2008-10-03 16:09:28 +000082- Issue #3187: Add sys.setfilesystemencoding.
83
Guido van Rossumf0af3e32008-10-02 18:55:37 +000084- Issue #3187: Better support for "undecodable" filenames. Code by Victor
85 Stinner, with small tweaks by GvR.
86
Martin v. Löwis601149b2008-09-29 22:19:08 +000087- Issue #3965: Allow repeated calls to turtle.Screen, by making it a
88 true singleton object.
89
Benjamin Peterson3a53fbb2008-09-27 22:04:16 +000090- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers.
91
Amaury Forgeot d'Arcb5cf3012008-09-25 22:27:43 +000092- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly
93 raise a TypeError: "'tuple' object is not callable" instead of the expected
94 dbm.error.
95
Martin v. Löwis60ebb8b2008-09-21 07:32:10 +000096- Bug #3884: Make the turtle module toplevel again.
97
Thomas Heller1308c262008-09-24 19:01:29 +000098- Issue #3547: Fixed ctypes structures bitfields of varying integer
99 sizes.
100
Gerhard Häring6117f422008-09-22 06:04:51 +0000101Extension Modules
102-----------------
103
104- Issue #3659: Subclasses of str didn't work as SQL parameters.
105
Martin v. Löwisf63921f2008-10-13 11:30:30 +0000106Build
107-----
108
Martin v. Löwisc820eaf2008-10-17 13:47:20 +0000109- Issue #4091: Install pythonxy.dll in system32 again.
110
Martin v. Löwisf63921f2008-10-13 11:30:30 +0000111- Issue #4018: Disable "for me" installations on Vista.
112
Martin v. Löwisb37509b2008-11-04 20:45:29 +0000113- Issue #4204: Fixed module build errors on FreeBSD 4.
114
Martin v. Löwis33b64502008-10-15 05:58:17 +0000115Tools/Demos
116-----------
117
Martin v. Löwis869bad92008-10-17 15:54:44 +0000118- Issue #3717: Fix Demo/embed/demo.c.
119
Martin v. Löwis33b64502008-10-15 05:58:17 +0000120- Issue #4072: Add a distutils demo for build_py_2to3.
121
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +0000122
Barry Warsaw8509df72008-08-21 03:02:47 +0000123What's New in Python 3.0 release candidate 1
124============================================
125
Barry Warsawb8854802008-09-18 03:00:28 +0000126*Release date: 17-Sep-2008*
Barry Warsaw8509df72008-08-21 03:02:47 +0000127
128Core and Builtins
129-----------------
130
Benjamin Peterson5e19e442008-09-10 21:47:03 +0000131- Issue #3827: memoryview lost its size attribute in favor of using len(view).
132
Hirokazu Yamamoto167b12b2008-09-09 14:01:25 +0000133- Issue #3813: could not lanch python.exe via symbolic link on cygwin.
134
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000135- Issue #3705: fix crash when given a non-ascii value on the command line for
Amaury Forgeot d'Arc8530e852008-09-09 07:28:22 +0000136 the "-c" and "-m" parameters. Now the behaviour is as expected under Linux,
137 although under Windows it fails at a later point.
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000138
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000139- Issue #3279: Importing site at interpreter was failing silently because the
140 site module uses the open builtin which was not initialized at the time.
141
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000142- Issue #3660: Corrected a reference leak in str.encode() when the encoder
143 does not return a bytes object.
144
145- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle
Amaury Forgeot d'Arc1b933ed2008-09-04 22:34:09 +0000146 error conditions.
147
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000148- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being
Brett Cannon8a9583e2008-09-04 05:04:25 +0000149 tokenized by either a file path or file pointer for the benefit of
150 PyTokenizer_FindEncoding().
151
Antoine Pitroufff95302008-09-03 18:58:51 +0000152- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On
153 these systems, the mbstowcs() function is slightly buggy and must be
154 replaced with strlen() for the purpose of counting of number of wide
155 characters needed to represent the multi-byte character string.
156
Antoine Pitrou658fad82008-09-03 18:34:34 +0000157- Issue #3697: "Fatal Python error: Cannot recover from stack overflow"
158 could be easily encountered under Windows in debug mode when exercising
159 the recursion limit checking code, due to bogus handling of recursion
160 limit when USE_STACKCHEK was enabled.
161
Brett Cannon54bd41d2008-09-02 04:01:42 +0000162- Issue 3639: The _warnings module could segfault the interpreter when
163 unexpected types were passed in as arguments.
164
Antoine Pitrouc6b09eb2008-09-01 15:10:14 +0000165- Issue #3712: The memoryview object had a reference leak and didn't support
166 cyclic garbage collection.
167
Antoine Pitrouf71995782008-08-29 18:37:05 +0000168- Issue #3668: Fix a memory leak with the "s*" argument parser in
169 PyArg_ParseTuple and friends, which occurred when the argument for "s*"
170 was correctly parsed but parsing of subsequent arguments failed.
171
Amaury Forgeot d'Arcdb26f7c2008-08-29 07:13:32 +0000172- Issue #3611: An exception __context__ could be cleared in a complex pattern
173 involving a __del__ method re-raising an exception.
174
Antoine Pitrouec569b72008-08-26 22:40:48 +0000175- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to
176 match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__
177 mechanism. In the process, fix a bug where isinstance() and issubclass(),
178 when given a tuple of classes as second argument, were looking up
179 __instancecheck__ / __subclasscheck__ on the tuple rather than on each
180 type object.
181
Antoine Pitroue2dffc02008-08-26 22:02:58 +0000182- Issue #3663: Py_None was decref'd when printing SyntaxErrors.
183
Benjamin Peterson9edd2bd2008-08-27 00:31:37 +0000184- Issue #3651: Fix various memory leaks when using the buffer
185 interface, or when the "s#" code of PyArg_ParseTuple is given a
186 bytes object.
187
Neal Norwitz6ae2eb22008-08-24 23:50:08 +0000188- Issue #3657: Fix uninitialized memory read when pickling longs.
189 Found by valgrind.
190
Neal Norwitz3ce5d922008-08-24 07:08:55 +0000191- Apply security patches from Apple.
192
Neal Norwitz2f99b242008-08-24 05:48:10 +0000193- Fix crashes on memory allocation failure found with failmalloc.
194
195- Fix memory leaks found with valgrind and update suppressions file.
196
197- Fix compiler warnings in opt mode which would lead to invalid memory reads.
198
199- Fix problem using wrong name in decimal module reported by pychecker.
200
Amaury Forgeot d'Arc20443f32008-08-22 22:05:20 +0000201- Issue #3650: Fixed a reference leak in bytes.split('x').
202
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000203- bytes(o) now tries to use o.__bytes__() before using fallbacks.
204
Gregory P. Smith207f2112008-09-07 06:29:10 +0000205- Issue #1204: The configure script now tests for additional libraries
206 that may be required when linking against readline. This fixes issues
207 with x86_64 builds on some platforms (a few Linux flavors and OpenBSD).
208
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000209C API
210-----
211
212- PyObject_Bytes and PyBytes_FromObject were added.
213
Barry Warsaw8509df72008-08-21 03:02:47 +0000214Library
215-------
216
Guido van Rossum698280d2008-09-10 17:44:35 +0000217- Issue #3756: make re.escape() handle bytes as well as str.
218
Georg Brandl7cd67cc2008-09-09 19:31:25 +0000219- Issue #3800: fix filter() related bug in formatter.py.
220
Antoine Pitrou5fe291f2008-09-06 23:00:03 +0000221- Issue #874900: fix behaviour of threading module after a fork.
222
Antoine Pitrou9e4fdf42008-09-05 23:43:02 +0000223- Issue #3535: zipfile couldn't read some zip files larger than 2GB.
224
225- Issue #3776: Deprecate the bsddb package for removal in 3.0.
226
227- Issue #3762: platform.architecture() fails if python is lanched via
228 its symbolic link.
229
Antoine Pitroud79dc622008-09-05 00:03:33 +0000230- Issue #3660: fix a memory leak in the C accelerator of the pickle module.
231
Antoine Pitrou1d6a16b2008-09-04 21:32:09 +0000232- Issue #3160: the "bdist_wininst" distutils command didn't work.
233
Guilherme Polob212b752008-09-04 11:21:31 +0000234- Issue #1658: tkinter changes dict size during iteration in both
235 tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText.
236
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000237- The bsddb module (and therefore the dbm.bsd module) has been removed.
Gregory P. Smith451e99b2008-09-04 04:46:48 +0000238 It is now maintained outside of the standard library at
239 http://www.jcea.es/programacion/pybsddb.htm.
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000240
Facundo Batistac469d4c2008-09-03 22:49:01 +0000241- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module
242 to the urlparse one. Added a DeprecationWarning in the old module, it
243 will be deprecated in the future.
244
Marc-André Lemburg7b2b1f92008-09-02 12:10:46 +0000245- Issue #3719: platform.architecture() fails if there are spaces in the
246 path to the Python binary.
247
Brett Cannonec92e182008-09-02 02:46:59 +0000248- Issue 3602: As part of the merge of r66135, make the parameters on
249 warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning.
250
Benjamin Petersonb3085c92008-09-01 23:09:31 +0000251- The deprecation warnings for the camelCase threading API names were removed.
252
Jesse Noller338f5782008-09-03 18:22:19 +0000253- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing
254 SEM_VALUE_MAX.
255
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000256Extension Modules
257-----------------
258
Antoine Pitrou9cadb1b2008-09-15 23:02:56 +0000259- Issue #3782: os.write() must not accept unicode strings.
260
Amaury Forgeot d'Arcd8976f12008-09-02 23:22:56 +0000261- Issue #2975: When compiling several extension modules with Visual Studio 2008
262 from the same python interpreter, some environment variables would grow
263 without limit.
264
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000265- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by
266 exploitation of poor argument checking.
267
Jesus Cea6ba33292008-08-31 14:12:11 +0000268- bsddb code updated to version 4.7.3pre2. This code is the same than
269 Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase.
270 The Python code is automatically translated using "2to3". Please, do not
271 update this code in Python 3.0 by hand. Update the 2.6 one and then
272 do "2to3".
273
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000274- The _bytesio and _stringio modules are now compiled into the python binary.
275
Gregory P. Smith693fc462008-09-06 20:13:06 +0000276- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of
277 mutable bytearray objects where they should have been using immutable bytes.
278
Gregory P. Smith0a608fd2008-09-06 21:34:51 +0000279- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to
280 return bytes objects instead of bytearray objects.
281
Gregory P. Smith693fc462008-09-06 20:13:06 +0000282
Neal Norwitz8f2f22a2008-08-24 20:59:23 +0000283Tools/Demos
284-----------
285
286- Fix Misc/gdbinit so it works.
287
Barry Warsaw8509df72008-08-21 03:02:47 +0000288
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000289Build
290-----
291
Hirokazu Yamamoto54a1cc62008-09-09 17:55:11 +0000292- Issue #3812: Failed to build python if configure --without-threads.
293
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000294- Issue #3791: Remove the bsddb module from the Windows installer, and the
295 core bsddb library from the Windows build files.
296
297
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000298What's new in Python 3.0b3?
299===========================
300
Barry Warsaw57c10582008-08-21 02:39:51 +0000301*Release date: 20-Aug-2008*
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000302
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000303Core and Builtins
304-----------------
305
Benjamin Petersonbc74e5b2008-08-23 20:19:17 +0000306- Issue #3653: Fix a segfault when sys.excepthook was called with invalid
307 arguments.
308
Antoine Pitrou616d2852008-08-19 22:09:34 +0000309- Issue #2394: implement more of the memoryview API, with the caveat that
310 only one-dimensional contiguous buffers are supported and exercised right
311 now. Slicing, slice assignment and comparison (equality and inequality)
312 have been added. Also, the tolist() method has been implemented, but only
313 for byte buffers. Endly, the API has been updated to return bytes objects
314 wherever it used to return bytearrays.
315
Antoine Pitrouee58fa42008-08-19 18:22:14 +0000316- Issue #3560: clean up the new C PyMemoryView API so that naming is
317 internally consistent; add macros PyMemoryView_GET_BASE() and
318 PyMemoryView_GET_BUFFER() to access useful properties of a memory views
319 without relying on a particular implementation; remove the ill-named
320 PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead).
321
Thomas Hellerf5049fc2008-08-19 19:49:49 +0000322- ctypes function pointers that are COM methods have a boolean True
323 value again.
324
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000325- Issue #1819: function calls with several named parameters are now on
326 average 35% faster (as measured by pybench).
327
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000328- The undocumented C APIs PyUnicode_AsString() and
329 PyUnicode_AsStringAndSize() were made private to the interpreter, in
330 order to be able to refine their interfaces for Python 3.1.
331
332 If you need to access the UTF-8 representation of a Unicode object
333 as bytes string, please use PyUnicode_AsUTF8String() instead.
334
Antoine Pitrouaf14b792008-08-07 21:50:41 +0000335- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks
336 to Python 3.0's stricter semantics which allow to avoid successive
337 reallocations of the result string (this also affects str.join()).
338
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000339
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000340Library
341-------
342
Hye-Shik Chang50d1f792008-08-23 08:03:03 +0000343- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve
344 a build problem on MacOS with CJK locales. It adds four temporary
345 mappings to existing legacy codecs that are virtually compatible
346 with Mac encodings. They will be replaced by codecs correctly
347 implemented in 3.1.
348
Amaury Forgeot d'Arc41e36672008-08-20 21:35:50 +0000349- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError
350 "global name 'header' is not defined".
351
Antoine Pitroufd036452008-08-19 17:56:33 +0000352- Issue #2834: update the regular expression library to match the unicode
353 standards of py3k. In other words, mixing bytes and unicode strings
354 (be it as pattern, search string or replacement string) raises a TypeError.
355 Moreover, the re.UNICODE flag is enabled automatically for unicode patterns,
356 and can be disabled by specifying a new re.ASCII flag; as for bytes
357 patterns, ASCII matching is the only option and trying to specify re.UNICODE
358 for such patterns raises a ValueError.
359
Guido van Rossum52dbbb92008-08-18 21:44:30 +0000360- Issue #3300: make urllib.parse.[un]quote() default to UTF-8.
361 Code contributed by Matt Giuca. quote() now encodes the input
362 before quoting, unquote() decodes after unquoting. There are
363 new arguments to change the encoding and errors settings.
364 There are also new APIs to skip the encode/decode steps.
365 [un]quote_plus() are also affected.
366
Nick Coghlan36f49522008-08-18 12:31:52 +0000367- Issue #2235: numbers.Number now blocks inheritance of the default id()
368 based hash because that hash mechanism is not correct for numeric types.
369 All concrete numeric types that inherit from Number (rather than just
370 registering with it) must explicitly provide a hash implementation in
371 order for their instances to be hashable.
372
Benjamin Peterson4cd6a952008-08-17 20:23:46 +0000373- Issue #2676: in the email package, content-type parsing was hanging on
374 pathological input because of quadratic or exponential behaviour of a
375 regular expression.
376
Antoine Pitrou87695762008-08-14 22:44:29 +0000377- Issue #3476: binary buffered reading through the new "io" library is now
378 thread-safe.
379
Robert Schuppenies3d1c7de2008-08-10 11:28:17 +0000380- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to
381 menu entries were not deleted.
382
Lars Gustäbel0c24e8b2008-08-02 11:43:24 +0000383- Remove the TarFileCompat class from tarfile.py.
384
Amaury Forgeot d'Arcbdbddf82008-08-01 00:06:49 +0000385- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and
386 accepts the same parameters. It just checks that its first argument is an
387 integer.
388
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000389- Issue #3394: zipfile.writestr sets external attributes when passed a
390 file name rather than a ZipInfo instance, so files are extracted with
391 mode 0600 rather than 000 under Unix.
392
Antoine Pitrouc66f9092008-07-28 19:46:11 +0000393- Issue #2523: Fix quadratic behaviour when read()ing a binary file without
394 asking for a specific length.
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000395
Martin v. Löwis371bb502008-08-16 13:02:57 +0000396Extension Modules
397-----------------
398
399- Bug #3542: Support Unicode strings in _msi module.
400
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000401What's new in Python 3.0b2?
402===========================
403
Barry Warsaw4bd1cef2008-07-18 02:28:44 +0000404*Release date: 17-Jul-2008*
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000405
406Core and Builtins
407-----------------
408
Mark Dickinson65fe25e2008-07-16 11:30:51 +0000409- Issue #3008: the float type has a new instance method 'float.hex'
410 and a new class method 'float.fromhex' to convert floating-point
411 numbers to and from hexadecimal strings, respectively.
412
Eric Smithd68af8f2008-07-16 00:15:35 +0000413- Issue #3083: Add alternate (#) formatting for bin, oct, hex output
414 for str.format(). This adds the prefix 0b, 0o, or 0x, respectively.
415
Amaury Forgeot d'Arca4db6862008-07-04 21:26:43 +0000416- Issue #3280: like chr(), the "%c" format now accepts unicode code points
417 beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On
418 "narrow Unicode" builds, the result is a string of 2 code units, forming a
419 UTF-16 surrogate pair.
420
Georg Brandld52429f2008-07-04 15:55:02 +0000421- Issue #3282: str.isprintable() should return False for undefined
422 Unicode characters.
423
Martin v. Löwis029656f2008-06-30 04:06:08 +0000424- Issue #3236: Return small longs from PyLong_FromString.
425
Benjamin Petersone6528212008-07-15 15:32:09 +0000426- Exception tracebacks now support exception chaining.
427
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000428Library
429-------
430
Brett Cannonc2542e92008-07-25 18:19:20 +0000431- Removed the sunaudio module. Use sunau instead.
432
Thomas Heller47bc8092008-08-19 06:38:12 +0000433- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python
434 api functions without holding the GIL, which could lead to a fatal
435 error when they failed.
436
437- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects.
438
Georg Brandl30704ea02008-07-23 15:07:12 +0000439- Removed "ast" function aliases from the parser module.
440
Thomas Heller15383a02008-07-15 19:46:52 +0000441- Issue #3313: Fixed a crash when a failed dlopen() call does not set
442 a valid dlerror() message.
443
Thomas Heller0261e1e2008-07-15 17:25:07 +0000444- Issue #3258: Fixed a crash when a ctypes POINTER type to an
445 incomplete structure was created.
446
Georg Brandl1abcbf82008-07-01 19:28:43 +0000447- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the
448 argument now must be a bytes object in any case.
449
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000450- Issue #3145: help("modules whatever") failed when trying to load the source
451 code of every single module of the standard library, including invalid files
452 used in the test suite.
453
Georg Brandlbded4d32008-07-17 18:15:35 +0000454- The gettext library now consistently uses Unicode strings for message ids
455 and message strings, and ``ugettext()`` and the like don't exist anymore.
Benjamin Peterson801844d2008-07-14 14:32:15 +0000456
Benjamin Petersone6528212008-07-15 15:32:09 +0000457- The traceback module has been expanded to handle chained exceptions.
458
Amaury Forgeot d'Arc612f61f2008-07-02 23:02:21 +0000459C API
460-----
461
462- Issue #3247: the function Py_FindMethod was removed. Modern types should
463 use the tp_methods slot instead.
464
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000465Tools/Demos
466-----------
467
Georg Brandl336341f2008-07-01 20:21:28 +0000468- The Mac/Demos directory has been removed.
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000469
Georg Brandl336341f2008-07-01 20:21:28 +0000470- All of the Mac scripts have been removed (including BuildApplet.py).
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000471
472
Brett Cannon0d71ee72008-05-08 18:13:40 +0000473What's new in Python 3.0b1?
474===========================
475
Barry Warsawc1e689e2008-06-19 00:35:43 +0000476*Release date: 18-Jun-2008*
Brett Cannon0d71ee72008-05-08 18:13:40 +0000477
478Core and Builtins
479-----------------
480
Brett Cannondb734912008-06-27 00:52:15 +0000481- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
482 argument being anything other than a dict or None. Also fixed a bug in error
483 handling when 'message' and 'category' were both set to None, triggering a
484 bus error.
485
Amaury Forgeot d'Arcc856c7a2008-06-16 19:50:09 +0000486- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
487 holds the last (strong) reference to its referent.
488
Georg Brandl559e5d72008-06-11 18:37:52 +0000489- Issue #2630: implement PEP 3138. repr() now returns printable
490 Unicode characters unescaped, to get an ASCII-only representation
491 of an object use ascii().
492
Amaury Forgeot d'Arcf1ca0b12008-06-11 17:40:47 +0000493- Issue #1342: On windows, Python could not start when installed in a
494 directory with non-ascii characters.
495
Martin v. Löwis1a214512008-06-11 05:26:20 +0000496- Implement PEP 3121: new module initialization and finalization API.
497
Georg Brandle1b5ac62008-06-04 13:06:58 +0000498- Removed the already-defunct ``-t`` option.
499
Amaury Forgeot d'Arc74c71f52008-05-26 21:41:42 +0000500- Issue #2957: Corrected a ValueError "recursion limit exceeded", when
501 unmarshalling many code objects, which happens when importing a
502 large .pyc file (~1000 functions).
503
Georg Brandl52b92cc2008-05-25 09:43:03 +0000504- Issue #2963: fix merging oversight that disabled method cache for
505 all types.
Georg Brandl1bcf35a2008-05-25 09:32:09 +0000506
Georg Brandlc9b09532008-05-25 09:24:38 +0000507- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
508
Georg Brandl52b92cc2008-05-25 09:43:03 +0000509- Issue #2895: Don't crash when given bytes objects as keyword names.
Georg Brandld8b690f2008-05-16 17:28:50 +0000510
Georg Brandl52b92cc2008-05-25 09:43:03 +0000511- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
512 code now allows any unicode string and returns a utf-8 encoded
513 buffer, just like the "s#" code already does. The "z" code was
514 corrected as well.
Amaury Forgeot d'Arc07404592008-05-12 13:19:07 +0000515
Georg Brandl52b92cc2008-05-25 09:43:03 +0000516- Issue #2863: generators now have a ``gen.__name__`` attribute that
517 equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
518 ``func.func_code.co_name``. The repr() of a generator now also
519 contains this name.
Alexandre Vassalottie9f305f2008-05-16 04:39:54 +0000520
521- Issue #2831: enumerate() now has a ``start`` argument.
522
Georg Brandl52b92cc2008-05-25 09:43:03 +0000523- Issue #2801: fix bug in the float.is_integer method where a
524 ValueError was sometimes incorrectly raised.
Mark Dickinsonc4352b02008-05-09 13:55:01 +0000525
Georg Brandl52b92cc2008-05-25 09:43:03 +0000526- The ``--with-toolbox-glue`` option (and the associated
527 pymactoolbox.h) have been removed.
Benjamin Peterson79629ab2008-05-14 21:07:12 +0000528
Georg Brandl52b92cc2008-05-25 09:43:03 +0000529- Issue #2196: hasattr() now lets exceptions which do not inherit
530 Exception (KeyboardInterrupt, and SystemExit) propagate instead of
531 ignoring them.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000532
Benjamin Petersoneec3d712008-06-11 15:59:43 +0000533- #3021 Exception reraising sematics have been significantly improved. However,
534 f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
535 code anymore.
536
Benjamin Peterson4f92ca42008-06-11 20:21:57 +0000537- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been
538 removed.
539
Brett Cannon0d71ee72008-05-08 18:13:40 +0000540Extension Modules
541-----------------
542
Georg Brandl38feaf02008-05-25 07:45:51 +0000543- Renamed ``_winreg`` module to ``winreg``.
544
Georg Brandl52b92cc2008-05-25 09:43:03 +0000545- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
546 platform.
Alexandre Vassalottibee32532008-05-16 18:15:12 +0000547
548- Support for Windows 9x has been removed from the winsound module.
549
Georg Brandl52b92cc2008-05-25 09:43:03 +0000550- Issue #2870: cmathmodule.c compile error.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000551
Brett Cannon0d71ee72008-05-08 18:13:40 +0000552Library
553-------
554
Benjamin Peterson87069fd2008-08-20 02:00:14 +0000555- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of
556 symtable.Symbol have been removed.
557
Amaury Forgeot d'Arccb0d2d72008-06-18 22:19:22 +0000558- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows.
559
Jeremy Hylton1afc1692008-06-18 20:49:58 +0000560- a new ``urllib`` package was created. It consists of code from
561 ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old
562 modules have all been removed. The new package has five submodules:
563 ``urllib.parse``, ``urllib.request``, ``urllib.response``,
564 ``urllib.error``, and ``urllib.robotparser``. The
565 ``urllib.request.urlopen()`` function uses the url opener from
566 ``urllib2``. (Note that the unittests have not been renamed for the
567 beta, but they will be renamed in the future.)
568
Benjamin Petersona0c0a4a2008-06-12 22:15:50 +0000569- rfc822 has been removed in favor of the email package.
570
Benjamin Peterson425ea7f2008-06-12 14:11:35 +0000571- mimetools has been removed in favor of the email package.
Benjamin Peterson23c51a22008-06-12 14:06:57 +0000572
Barry Warsawf5019422008-06-12 02:42:00 +0000573- Patch #2849: Remove use of rfc822 module from standard library.
574
Alexandre Vassalotti794652d2008-06-11 22:58:36 +0000575- Added C optimized implementation of io.StringIO.
576
Alexandre Vassalottica2d6102008-06-12 18:26:05 +0000577- The ``pickle`` module is now automatically use an optimized C
578 implementation of Pickler and Unpickler when available. The
579 ``cPickle`` module is no longer needed.
580
Georg Brandl877b10a2008-06-01 21:25:55 +0000581- Removed the ``htmllib`` and ``sgmllib`` modules.
582
Georg Brandl61013952008-05-28 15:56:30 +0000583- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have
584 been removed from ``http.cookies``.
585
Brett Cannona23810f2008-05-26 19:04:21 +0000586- The ``commands`` module has been removed. Its getoutput() and
587 getstatusoutput() functions have been moved to the ``subprocess`` module.
588
Georg Brandl3d5c4252008-05-26 18:03:26 +0000589- The ``http`` package was created; it contains the old ``httplib``
590 as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib``
591 as ``http.cookiejar``, and the content of the three ``HTTPServer``
592 modules as ``http.server``.
593
Georg Brandl38eceaa2008-05-26 11:14:17 +0000594- The ``xmlrpc`` package was created; it contains the old
595 ``xmlrpclib`` module as ``xmlrpc.client`` and the content of
596 the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000597 as ``xmlrpc.server``.
Georg Brandl38eceaa2008-05-26 11:14:17 +0000598
599- The ``dbm`` package was created, containing the old modules
600 ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having
601 ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``),
602 ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``)
603 as submodules.
604
Georg Brandl52b92cc2008-05-25 09:43:03 +0000605- The ``repr`` module has been renamed to ``reprlib``.
Alexandre Vassalotti1f2ba4b2008-05-16 07:12:44 +0000606
Georg Brandl52b92cc2008-05-25 09:43:03 +0000607- The ``statvfs`` module has been removed.
Brett Cannonacbb7862008-05-16 00:42:57 +0000608
Georg Brandl52b92cc2008-05-25 09:43:03 +0000609- Issue #1713041: fix pprint's handling of maximum depth.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000610
Georg Brandl52b92cc2008-05-25 09:43:03 +0000611- Issue #2250: Exceptions raised during evaluation of names in
612 rlcompleter's ``Completer.complete()`` method are now caught and
613 ignored.
Alexandre Vassalotti8ae3e052008-05-16 00:41:41 +0000614
Georg Brandl52b92cc2008-05-25 09:43:03 +0000615- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
616 ``TextWrapper`` class.
Alexandre Vassalotti1d1eaa42008-05-14 22:59:42 +0000617
Alexandre Vassalotti6461e102008-05-15 22:09:29 +0000618- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
619 large to fit in a C long. ldexp(x, n) now returns a zero (with
620 suitable sign) if n is large and negative; previously, it raised
621 OverflowError.
622
Georg Brandl52b92cc2008-05-25 09:43:03 +0000623- The ``ConfigParser`` module has been renamed to ``configparser``.
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000624
Georg Brandl52b92cc2008-05-25 09:43:03 +0000625- Issue #2865: webbrowser.open() works again in a KDE environment.
Amaury Forgeot d'Arc2b2b44d2008-05-12 14:41:00 +0000626
Georg Brandl52b92cc2008-05-25 09:43:03 +0000627- The ``multifile`` module has been removed.
Brett Cannond3343cb2008-05-12 03:18:21 +0000628
Georg Brandl52b92cc2008-05-25 09:43:03 +0000629- The ``SocketServer`` module has been renamed to ``socketserver``.
Alexandre Vassalottice261952008-05-12 02:31:37 +0000630
Georg Brandl52b92cc2008-05-25 09:43:03 +0000631- Fixed the ``__all__`` setting on ``collections`` to include
632 ``UserList`` and ``UserString``.
Brett Cannon23a4a7b2008-05-12 00:56:28 +0000633
Brett Cannoncf3520c2008-05-11 22:47:58 +0000634- The sre module has been removed.
635
Alexandre Vassalottif260e442008-05-11 19:59:59 +0000636- The Queue module has been renamed to queue.
637
Alexandre Vassalottif7fa63d2008-05-11 08:55:36 +0000638- The copy_reg module has been renamed to copyreg.
639
Brett Cannond8b61ee2008-05-11 03:00:26 +0000640- The mhlib module has been removed.
641
Brett Cannonbd474422008-05-10 22:42:14 +0000642- The ihooks module has been removed.
643
Brett Cannonb59a2bd2008-05-10 22:03:16 +0000644- The fpformat module has been removed.
645
Brett Cannonf4fd9932008-05-10 21:11:46 +0000646- The dircache module has been removed.
647
Brett Cannond175b4c2008-05-10 03:19:54 +0000648- The Canvas module has been removed.
649
Mark Dickinsonb27406c2008-05-09 13:42:33 +0000650- The Decimal module gained the magic methods __round__, __ceil__,
651 __floor__ and __trunc__, to give support for round, math.ceil,
652 math.floor and math.trunc.
653
Brett Cannon900ee3a2008-05-08 20:31:11 +0000654- The user module has been removed.
655
Brett Cannon34afe872008-05-08 20:31:44 +0000656- The mutex module has been removed.
657
Brett Cannon0d71ee72008-05-08 18:13:40 +0000658- The imputil module has been removed.
659
Georg Brandl52b92cc2008-05-25 09:43:03 +0000660- os.path.walk has been removed in favor of os.walk.
Benjamin Petersond71ca412008-05-08 23:44:58 +0000661
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000662- pdb gained the "until" command.
663
Georg Brandl52b92cc2008-05-25 09:43:03 +0000664- The test.test_support module has been renamed to test.support.
Benjamin Petersonee8712c2008-05-20 21:35:26 +0000665
Georg Brandl32de7af2008-08-18 23:07:41 +0000666- The threading module API was renamed to be PEP 8 compliant. The
667 old names are still present, but will be removed in the near future.
Benjamin Peterson672b8032008-06-11 19:14:14 +0000668
Georg Brandl294d5a92008-06-01 19:25:32 +0000669Tools/Demos
670-----------
671
672- The bgen tool has been removed.
Benjamin Peterson630c8292008-06-01 18:50:38 +0000673
Brett Cannon0d71ee72008-05-08 18:13:40 +0000674Build
675-----
676
677
Barry Warsaw66079cd2008-04-04 01:36:36 +0000678What's New in Python 3.0a5?
679===========================
680
Barry Warsaw9eab8b02008-05-08 13:05:38 +0000681*Release date: 08-May-2008*
Barry Warsaw66079cd2008-04-04 01:36:36 +0000682
683Core and Builtins
684-----------------
685
Georg Brandl52b92cc2008-05-25 09:43:03 +0000686- Fixed misbehaviour of PyLong_FromSsize_t on systems where
687 sizeof(size_t) > sizeof(long).
Mark Dickinson7ab6be22008-04-15 21:42:42 +0000688
Georg Brandl52b92cc2008-05-25 09:43:03 +0000689- Issue #2221: Corrected a SystemError "error return without exception
690 set", when the code executed by exec() raises an exception, and
691 sys.stdout.flush() also raises an error.
Amaury Forgeot d'Arc7fedbe52008-04-10 21:03:09 +0000692
Georg Brandl52b92cc2008-05-25 09:43:03 +0000693- Bug #2565: The repr() of type objects now calls them 'class', not
694 'type' - whether they are builtin types or not.
Martin v. Löwis250ad612008-04-07 05:43:42 +0000695
Martin v. Löwis790465f2008-04-05 20:41:37 +0000696- The command line processing was converted to pass Unicode strings
697 through as unmodified as possible; as a consequence, the C API
698 related to command line arguments was changed to use wchar_t.
699
Georg Brandl52b92cc2008-05-25 09:43:03 +0000700- All backslashes in raw strings are interpreted literally. This
701 means that '\u' and '\U' escapes are not treated specially.
Benjamin Petersona2f837f2008-04-28 21:05:10 +0000702
Barry Warsaw66079cd2008-04-04 01:36:36 +0000703Extension Modules
704-----------------
705
706Library
707-------
708
Georg Brandl52b92cc2008-05-25 09:43:03 +0000709- ctypes objects now support the PEP3118 buffer interface.
Thomas Hellerb041fda2008-04-30 17:11:46 +0000710
Thomas Hellere106dc32008-04-24 18:39:36 +0000711- Issue #2682: ctypes callback functions now longer contain a cyclic
712 reference to themselves.
713
Georg Brandl52b92cc2008-05-25 09:43:03 +0000714- Issue #2058: Remove the buf attribute and add __slots__ to the
715 TarInfo class in order to reduce tarfile's memory usage.
Lars Gustäbelc2ea8c62008-04-14 10:05:48 +0000716
Martin v. Löwis8efc62c2008-04-10 19:02:25 +0000717- Bug #2606: Avoid calling .sort() on a dict_keys object.
718
Thomas Hellerbff533b2008-04-04 19:53:14 +0000719- The bundled libffi copy is now in sync with the recently released
720 libffi3.0.5 version, apart from some small changes to
721 Modules/_ctypes/libffi/configure.ac.
722
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000723Build
724-----
725
Mark Dickinsonb0e2b4c2008-04-26 20:48:56 +0000726- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
727
Guido van Rossumdc21db32008-04-07 18:37:41 +0000728- "make install" is now an alias for "make altinstall", to prevent
Georg Brandl52b92cc2008-05-25 09:43:03 +0000729 accidentally overwriting a Python 2.x installation. Use "make
730 fullinstall" to force Python 3.0 to be installed as "python".
Guido van Rossumdc21db32008-04-07 18:37:41 +0000731
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000732- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
733 gcc is used as compiler.
Barry Warsaw66079cd2008-04-04 01:36:36 +0000734
Georg Brandl52b92cc2008-05-25 09:43:03 +0000735
Barry Warsawa9d499d2008-03-01 18:38:07 +0000736What's New in Python 3.0a4?
737===========================
738
Barry Warsawbb5cd082008-04-02 23:33:27 +0000739*Release date: 02-Apr-2008*
Barry Warsawa9d499d2008-03-01 18:38:07 +0000740
Martin v. Löwis25931462008-03-17 20:43:42 +0000741Core and Builtins
742-----------------
743
744- Bug #2301: Don't try decoding the source code into the original
745 encoding for syntax errors.
746
Martin v. Löwis92fab752008-03-08 10:40:41 +0000747Extension Modules
748-----------------
749
Neal Norwitz6cf49cf2008-03-24 06:22:57 +0000750- The dl module was removed, use the ctypes module instead.
751
Martin v. Löwis92fab752008-03-08 10:40:41 +0000752- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +0000753
Martin v. Löwis071ef772008-03-08 11:24:24 +0000754Library
755-------
756
Georg Brandl52b92cc2008-05-25 09:43:03 +0000757- The class distutils.commands.build_py.build_py_2to3 can be used as a
758 build_py replacement to automatically run 2to3 on modules that are
759 going to be installed.
Martin v. Löwis73a22f02008-03-22 00:35:10 +0000760
Guido van Rossumf4169812008-03-17 22:56:06 +0000761- A new pickle protocol (protocol 3) is added with explicit support
762 for bytes. This is the default protocol. It intentionally cannot
763 be unpickled by Python 2.x.
764
765- When a pickle written by Python 2.x contains an (8-bit) str
766 instance, this is now decoded to a (Unicode) str instance. The
767 encoding used to do this defaults to ASCII, but can be overridden
768 via two new keyword arguments to the Unpickler class. Previously
769 this would create bytes instances, which is usually wrong: str
770 instances are often used to pickle attribute names etc., and text is
771 more common than binary data anyway.
772
Martin v. Löwis071ef772008-03-08 11:24:24 +0000773- Default to ASCII as the locale.getpreferredencoding, if the POSIX
Georg Brandl52b92cc2008-05-25 09:43:03 +0000774 system doesn't support CODESET and LANG isn't set or doesn't allow
775 deduction of an encoding.
Martin v. Löwis071ef772008-03-08 11:24:24 +0000776
Georg Brandl52b92cc2008-05-25 09:43:03 +0000777- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
778 value.
Gregory P. Smith425136b2008-03-17 20:45:21 +0000779
Georg Brandl52b92cc2008-05-25 09:43:03 +0000780- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
781 has been renamed tokenize and now works with bytes rather than
782 strings. A new detect_encoding function has been added for
783 determining source file encoding according to PEP-0263. Token
784 sequences returned by tokenize always start with an ENCODING token
785 which specifies the encoding used to decode the file. This token is
786 used to encode the output of untokenize back to bytes.
787
Barry Warsawa9d499d2008-03-01 18:38:07 +0000788
Christian Heimesbc873412007-12-08 22:11:32 +0000789What's New in Python 3.0a3?
790===========================
791
Barry Warsaw659fc422008-03-01 17:45:23 +0000792*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +0000793
794Core and Builtins
795-----------------
796
Georg Brandl52b92cc2008-05-25 09:43:03 +0000797- Issue #2282: io.TextIOWrapper was not overriding seekable() from
798 io.IOBase.
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +0000799
Georg Brandl52b92cc2008-05-25 09:43:03 +0000800- Issue #2115: Important speedup in setting __slot__ attributes. Also
801 prevent a possible crash: an Abstract Base Class would try to access
802 a slot on a registered virtual subclass.
Christian Heimesa156e092008-02-16 07:38:31 +0000803
Georg Brandl52b92cc2008-05-25 09:43:03 +0000804- Fixed repr() and str() of complex numbers with infinity or nan as
805 real or imaginary part.
Christian Heimesa156e092008-02-16 07:38:31 +0000806
Georg Brandl52b92cc2008-05-25 09:43:03 +0000807- Clear all free list during a gc.collect() of the highest generation
808 in order to allow pymalloc to free more arenas. Python may give back
809 memory to the OS earlier.
Christian Heimesa156e092008-02-16 07:38:31 +0000810
Georg Brandl52b92cc2008-05-25 09:43:03 +0000811- Issue #2045: Fix an infinite recursion triggered when printing a
812 subclass of collections.defaultdict, if its default_factory is set
813 to a bound method.
Christian Heimesa156e092008-02-16 07:38:31 +0000814
815- Fixed a minor memory leak in dictobject.c. The content of the free
816 list was not freed on interpreter shutdown.
817
Georg Brandl52b92cc2008-05-25 09:43:03 +0000818- Limit free list of method and builtin function objects to 256
819 entries each.
Christian Heimesa156e092008-02-16 07:38:31 +0000820
Georg Brandl52b92cc2008-05-25 09:43:03 +0000821- Patch #1953: Added ``sys._compact_freelists()`` and the C API
822 functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
Christian Heimesa156e092008-02-16 07:38:31 +0000823 to compact the internal free lists of pre-allocted ints and floats.
824
825- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
Georg Brandl52b92cc2008-05-25 09:43:03 +0000826 Python expected the return type int but the fork familie returns
827 pi_t.
Christian Heimesa156e092008-02-16 07:38:31 +0000828
Georg Brandl52b92cc2008-05-25 09:43:03 +0000829- Issue #1678380: Fix a bug that identifies 0j and -0j when they
830 appear in the same code unit.
Christian Heimesa156e092008-02-16 07:38:31 +0000831
Georg Brandl52b92cc2008-05-25 09:43:03 +0000832- Issue #2025: Added tuple.count() and tuple.index() methods to comply
833 with the collections.Sequence API.
Raymond Hettinger65baa342008-02-07 00:41:02 +0000834
Georg Brandl52b92cc2008-05-25 09:43:03 +0000835- Fixed multiple reinitialization of the Python interpreter. The small
836 int list in longobject.c has caused a seg fault during the third
837 finalization.
Christian Heimesdfc12ed2008-01-31 15:16:38 +0000838
Georg Brandl52b92cc2008-05-25 09:43:03 +0000839- Issue #1973: bytes.fromhex('') raised SystemError.
Christian Heimesc04dac02008-01-30 11:27:57 +0000840
Georg Brandl52b92cc2008-05-25 09:43:03 +0000841- Issue #1771: remove cmp parameter from sorted() and list.sort().
Raymond Hettinger70b64fc2008-01-30 20:15:17 +0000842
Georg Brandl52b92cc2008-05-25 09:43:03 +0000843- Issue #1969: split and rsplit in bytearray are inconsistent.
Christian Heimes7b876152008-01-30 09:51:48 +0000844
Georg Brandl52b92cc2008-05-25 09:43:03 +0000845- map() no longer accepts None for the first argument. Use zip()
846 instead.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000847
Facundo Batista2336bdd2008-01-19 19:12:01 +0000848- Issue #1769: Now int("- 1") is not allowed any more.
849
Georg Brandl52b92cc2008-05-25 09:43:03 +0000850- Object/longobject.c: long(float('nan')) raises an OverflowError
851 instead of returning 0.
Christian Heimes386cd1e2008-01-15 02:01:20 +0000852
Georg Brandl52b92cc2008-05-25 09:43:03 +0000853- Issue #1762972: __file__ points to the source file instead of the
854 pyc/pyo file if the py file exists.
Christian Heimes3b06e532008-01-07 20:12:44 +0000855
Guido van Rossumab078dd2008-01-06 00:09:11 +0000856- Issue #1393: object_richcompare() returns NotImplemented instead of
857 False if the objects aren't equal, to give the other side a chance.
858
Guido van Rossume239b002008-01-06 00:44:20 +0000859- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000860
Georg Brandl52b92cc2008-05-25 09:43:03 +0000861- Improve some exception messages when Windows fails to load an
862 extension module. Now we get for example '%1 is not a valid Win32
863 application' instead of 'error code 193'. Also use Unicode strings
864 to deal with non-English locales.
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000865
Georg Brandl52b92cc2008-05-25 09:43:03 +0000866- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
867 Python C API has gained a new type *PyInstanceMethod_Type* and the
868 functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
869 and *PyInstanceMethod_Function(im)*.
Christian Heimesa3534a62007-12-11 19:56:40 +0000870
Georg Brandl52b92cc2008-05-25 09:43:03 +0000871- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
872 from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
873 are now enough to print the corresponding list of objects considered
874 by the garbage collector.
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000875
Georg Brandl52b92cc2008-05-25 09:43:03 +0000876- Issue #1573: Improper use of the keyword-only syntax makes the
877 parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000878
Georg Brandl52b92cc2008-05-25 09:43:03 +0000879- Issue #1564: The set implementation should special-case PyUnicode
880 instead of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000881
Guido van Rossumea6775b2008-02-21 20:16:31 +0000882- Patch #1031213: Decode source line in SyntaxErrors back to its
883 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000884
Christian Heimes09aaa882008-02-23 15:01:06 +0000885- inspect.getsource() includes the decorators again.
886
Guido van Rossumea6775b2008-02-21 20:16:31 +0000887- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
888 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000889
Georg Brandl52b92cc2008-05-25 09:43:03 +0000890- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
891 the first chunk fed to the decoder started with a BOM, but was
892 longer than 3 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000893
Christian Heimesbc873412007-12-08 22:11:32 +0000894Extension Modules
895-----------------
896
Georg Brandl52b92cc2008-05-25 09:43:03 +0000897- Code for itertools ifilter(), imap(), and izip() moved to bultins
898 and renamed to filter(), map(), and zip(). Also, renamed
899 izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000900
Georg Brandl52b92cc2008-05-25 09:43:03 +0000901- Issue #1762972: Readded the reload() function as imp.reload().
Guido van Rossumea6775b2008-02-21 20:16:31 +0000902
Georg Brandl52b92cc2008-05-25 09:43:03 +0000903- Bug #2111: mmap segfaults when trying to write a block opened with
904 PROT_READ.
Christian Heimesa156e092008-02-16 07:38:31 +0000905
Georg Brandl52b92cc2008-05-25 09:43:03 +0000906- Issue #2063: correct order of utime and stime in os.times() result
907 on Windows.
Christian Heimes7131fd92008-02-19 14:21:46 +0000908
Christian Heimesbc873412007-12-08 22:11:32 +0000909Library
910-------
911
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000912- Weakref dictionaries now inherit from MutableMapping.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000913
Georg Brandl52b92cc2008-05-25 09:43:03 +0000914- Created new UserDict class in collections module. This one inherits
915 from and complies with the MutableMapping ABC. Also, moved
916 UserString and UserList to the collections module. The
917 MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000918
Guido van Rossumea6775b2008-02-21 20:16:31 +0000919- Removed UserDict.DictMixin. Replaced all its uses with
920 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000921
Guido van Rossume239b002008-01-06 00:44:20 +0000922- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000923
Guido van Rossume239b002008-01-06 00:44:20 +0000924- Issue #1585: IDLE uses non-existent xrange() function.
925
926- Issue #1578: Problems in win_getpass.
927
Georg Brandl52d168a2008-01-07 18:10:24 +0000928Build
929-----
930
Georg Brandl52b92cc2008-05-25 09:43:03 +0000931- Renamed --enable-unicode configure flag to --with-wide-unicode,
932 since Unicode strings can't be disabled anymore.
Georg Brandl52d168a2008-01-07 18:10:24 +0000933
Guido van Rossume239b002008-01-06 00:44:20 +0000934C API
935-----
936
937- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
938 Py_TYPE and Py_REFCNT.
939
Georg Brandl52b92cc2008-05-25 09:43:03 +0000940- New API PyImport_ImportModuleNoBlock(), works like
941 PyImport_ImportModule() but won't block on the import lock
942 (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000943
Christian Heimesbc873412007-12-08 22:11:32 +0000944
Fred Drake0e474a82007-10-11 18:01:43 +0000945What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000946===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000947
Guido van Rossum99533a92007-12-06 05:07:41 +0000948*Release date: 07-Dec-2007*
949
950(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000951
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000952Core and Builtins
953-----------------
954
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000955- str8 now has the same construction signature as bytes.
956
Georg Brandl52b92cc2008-05-25 09:43:03 +0000957- Comparisons between str and str8 now return False/True for ==/!=.
958 sqlite3 returns str8 when recreating on object from it's __conform__
959 value. The struct module returns str8 for all string-related
960 formats. This was true before this change, but becomes more
961 apparent thanks to string comparisons always being False.
Brett Cannon40430012007-10-22 20:24:51 +0000962
Georg Brandl52b92cc2008-05-25 09:43:03 +0000963- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
964 buffer, encoding, newline)`.
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000965
966- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
967
968- Changed `__file__` and `co_filename` to unicode. The path names are decoded
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000969 with `Py_FileSystemDefaultEncoding` and a new API method
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000970 `PyUnicode_DecodeFSDefault(char*)` was added.
971
Georg Brandl52b92cc2008-05-25 09:43:03 +0000972- io.open() and _fileio.FileIO have grown a new argument closefd. A
973 false value disables the closing of the file descriptor.
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000974
Georg Brandl52b92cc2008-05-25 09:43:03 +0000975- Added a new option -b to issues warnings (-bb for errors) about
976 certain operations between bytes/buffer and str like str(b'') and
977 comparison.
Guido van Rossum98297ee2007-11-06 21:34:58 +0000978
Georg Brandl52b92cc2008-05-25 09:43:03 +0000979- The standards streams sys.stdin, stdout and stderr may be None when
980 the when the C runtime library returns an invalid file descriptor
981 for the streams (fileno(stdin) < 0). For now this happens only for
982 Windows GUI apps and scripts started with `pythonw.exe`.
Christian Heimes58cb1b82007-11-13 02:19:40 +0000983
Christian Heimesbce52be2007-11-17 19:08:41 +0000984- Added PCbuild9 directory for VS 2008.
985
Georg Brandl52b92cc2008-05-25 09:43:03 +0000986- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
987 work around a name clash with VS 2008 on Windows.
Christian Heimesbce52be2007-11-17 19:08:41 +0000988
Georg Brandl52b92cc2008-05-25 09:43:03 +0000989- Unbound methods are gone for good. ClassObject.method returns an
990 ordinary function object, instance.method still returns a bound
991 method object. The API of bound methods is cleaned up, too. The
992 im_class attribute is removed and im_func + im_self are renamed to
993 __func__ and __self__. The factory PyMethod_New takes only func and
994 instance as argument.
Christian Heimesff737952007-11-27 10:40:20 +0000995
Georg Brandl52b92cc2008-05-25 09:43:03 +0000996- intobject.h is no longer included by Python.h. The remains were
997 moved to longobject.h. It still exists to define several aliases
998 from PyInt_ to PyLong_ functions.
Christian Heimesf78b1c62007-12-02 16:52:32 +0000999
Christian Heimesa37d4c62007-12-04 23:02:19 +00001000- Removed sys.maxint, use sys.maxsize instead.
1001
Fred Drake0e474a82007-10-11 18:01:43 +00001002Extension Modules
1003-----------------
1004
1005- The `hotshot` profiler has been removed; use `cProfile` instead.
1006
Brett Cannone9fd2312007-10-12 19:18:19 +00001007Library
1008-------
1009
Georg Brandl52b92cc2008-05-25 09:43:03 +00001010- When loading an external file using testfile(), the passed-in
1011 encoding argument was being ignored if __loader__ is defined and
1012 forcing the source to be UTF-8.
Brett Cannone9fd2312007-10-12 19:18:19 +00001013
Georg Brandl52b92cc2008-05-25 09:43:03 +00001014- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
1015 been removed in favor of the tempfile module.
Guido van Rossum687b9c02007-10-25 23:18:51 +00001016
Christian Heimesc9543e42007-11-28 08:28:28 +00001017- Removed the 'new' module.
1018
Georg Brandl52b92cc2008-05-25 09:43:03 +00001019- Removed all types from the 'types' module that are easily accessable
1020 through builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +00001021
Georg Brandl52d168a2008-01-07 18:10:24 +00001022
Guido van Rossum4405cf32007-08-30 17:16:55 +00001023What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +00001024==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +00001025
Guido van Rossum4405cf32007-08-30 17:16:55 +00001026*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +00001027
1028Core and Builtins
1029-----------------
1030
Martin v. Löwis47383402007-08-15 07:32:56 +00001031- PEP 3131: Support non-ASCII identifiers.
1032
Martin v. Löwis447d33e2007-07-29 18:10:01 +00001033- PEP 3120: Change default encoding to UTF-8.
1034
Martin v. Löwis9f2e3462007-07-21 17:22:18 +00001035- PEP 3123: Use proper C inheritance for PyObject.
1036
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001037- Removed the __oct__ and __hex__ special methods and added a bin()
1038 builtin function.
1039
Georg Brandl52b92cc2008-05-25 09:43:03 +00001040- PEP 3127: octal literals now start with "0o". Old-style octal
1041 literals are invalid. There are binary literals with a prefix of
1042 "0b". This also affects int(x, 0).
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001043
Guido van Rossume7ba4952007-06-06 23:52:48 +00001044- None, True, False are now keywords.
1045
Guido van Rossum29478ef2007-05-29 00:39:44 +00001046- PEP 3119: isinstance() and issubclass() can be overridden.
1047
Guido van Rossumebe3e162007-05-17 18:20:34 +00001048- Remove BaseException.message.
1049
Guido van Rossum1bc535d2007-05-15 18:46:22 +00001050- Remove tuple parameter unpacking (PEP 3113).
1051
Georg Brandl52b92cc2008-05-25 09:43:03 +00001052- Remove the f_restricted attribute from frames. This naturally leads
1053 to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
Guido van Rossuma8add0e2007-05-14 22:03:55 +00001054
Georg Brandl52b92cc2008-05-25 09:43:03 +00001055- PEP 3132 was accepted. That means that you can do ``a, *b =
1056 range(5)`` to assign 0 to a and [1, 2, 3, 4] to b.
Guido van Rossum0368b722007-05-11 16:50:42 +00001057
Georg Brandl52b92cc2008-05-25 09:43:03 +00001058- range() now returns an iterator rather than a list. Floats are not
1059 allowed. xrange() is no longer defined.
Guido van Rossum805365e2007-05-07 22:24:25 +00001060
Nick Coghlan650f0d02007-04-15 12:05:43 +00001061- Patch #1660500: hide iteration variable in list comps, add set comps
Georg Brandl52b92cc2008-05-25 09:43:03 +00001062 and use common code to handle compilation of iterative expressions.
Nick Coghlan650f0d02007-04-15 12:05:43 +00001063
Guido van Rossume27dc722007-03-27 22:37:34 +00001064- By default, != returns the opposite of ==, unless the latter returns
1065 NotImplemented.
1066
Georg Brandl52b92cc2008-05-25 09:43:03 +00001067- Patch #1680961: sys.exitfunc has been removed and replaced with a
1068 private C-level API.
Collin Winter670e6922007-03-21 02:57:17 +00001069
Georg Brandl801dd732007-03-18 20:18:31 +00001070- PEP 3115: new metaclasses: the metaclass is now specified as a
Georg Brandl52b92cc2008-05-25 09:43:03 +00001071 keyword arg in the class statement, which can now use the full
1072 syntax of a parameter list. Also, the metaclass can implement a
1073 __prepare__ function which will be called to create the dictionary
1074 for the new class namespace.
Georg Brandl801dd732007-03-18 20:18:31 +00001075
Georg Brandl428f0642007-03-18 18:35:15 +00001076- The long-deprecated argument "pend" of PyFloat_FromString() has been
1077 removed.
1078
Georg Brandle32b4222007-03-10 22:13:27 +00001079- The dir() function has been extended to call the __dir__() method on
Georg Brandl52b92cc2008-05-25 09:43:03 +00001080 its argument, if it exists. If not, it will work like before. This
1081 allows customizing the output of dir() in the presence of a
1082 __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +00001083
Neal Norwitz8dfc4a92007-08-11 06:39:53 +00001084- Removed support for __members__ and __methods__.
1085
Georg Brandle32b4222007-03-10 22:13:27 +00001086- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +00001087
Georg Brandle32b4222007-03-10 22:13:27 +00001088- input() became raw_input(): the name input() now implements the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001089 functionality formerly known as raw_input(); the name raw_input() is
1090 no longer defined.
Guido van Rossum0240b922007-02-26 21:23:50 +00001091
Georg Brandl52b92cc2008-05-25 09:43:03 +00001092- Classes listed in an 'except' clause must inherit from
1093 BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +00001094
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001095- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +00001096 and .keys(), .items(), .values() return dict views, which behave
1097 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001098
Guido van Rossum8b545362007-02-09 23:52:14 +00001099- PEP 3105: print is now a function. Also (not in the PEP) the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001100 'softspace' attribute of files is now gone (since print() doesn't
1101 use it). A side effect of this change is that you can get
1102 incomplete output lines in interactive sessions:
Guido van Rossum8b545362007-02-09 23:52:14 +00001103
1104 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +00001105 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +00001106
1107 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +00001108
Brett Cannon398db8b2007-01-29 23:44:37 +00001109- PEP 3102: keyword-only arguments.
1110
Georg Brandl52b92cc2008-05-25 09:43:03 +00001111- Int/Long unification is complete. The 'long' built-in type and
1112 literals with trailing 'L' or 'l' have been removed. Performance
1113 may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +00001114
1115- 'except E, V' must now be spelled as 'except E as V' and deletes V
1116 at the end of the except clause; V must be a simple name.
1117
Neal Norwitzc1505362006-12-28 06:47:50 +00001118- Added function annotations per PEP 3107.
1119
Georg Brandl52b92cc2008-05-25 09:43:03 +00001120- Added nonlocal declaration from PEP 3104:
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +00001121
1122 >>> def f(x):
1123 ... def inc():
1124 ... nonlocal x
1125 ... x += 1
1126 ... return x
1127 ... return inc
1128 ...
1129 >>> inc = f(0)
1130 >>> inc()
1131 1
1132 >>> inc()
1133 2
1134
Georg Brandl66a796e2006-12-19 20:50:34 +00001135- Moved intern() to sys.intern().
1136
1137- exec is now a function.
1138
1139- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +00001140
Neal Norwitz4886cc32006-08-21 17:06:07 +00001141- Classic classes are a thing of the past. All classes are new style.
1142
1143- Exceptions *must* derive from BaseException.
1144
1145- Integer division always returns a float. The -Q option is no more.
1146 All the following are gone:
1147 * PyNumber_Divide and PyNumber_InPlaceDivide
1148 * __div__, __rdiv__, and __idiv__
1149 * nb_divide, nb_inplace_divide
1150 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
1151 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
1152 if we want to re-use __div__ and friends. If we do, it will make
1153 it harder to write code for both 2.x and 3.x.)
1154
1155- 'as' and 'with' are keywords.
1156
1157- Absolute import is the default behavior for 'import foo' etc.
1158
Georg Brandl52b92cc2008-05-25 09:43:03 +00001159- Removed support for syntax: backticks (ie, `x`), <>.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001160
Georg Brandl52b92cc2008-05-25 09:43:03 +00001161- Removed these Python builtins: apply(), callable(), coerce(),
1162 execfile(), file(), reduce(), reload().
Neal Norwitz4886cc32006-08-21 17:06:07 +00001163
Georg Brandl52b92cc2008-05-25 09:43:03 +00001164- Removed these Python methods: {}.has_key.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001165
Georg Brandl52b92cc2008-05-25 09:43:03 +00001166- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001167
1168- Remove C API support for restricted execution.
1169
Guido van Rossumcf1be882007-08-30 22:07:17 +00001170- zip(), map() and filter() now return iterators, behaving like their
Georg Brandl52b92cc2008-05-25 09:43:03 +00001171 itertools counterparts. This also affect map()'s behavior on
Guido van Rossumcf1be882007-08-30 22:07:17 +00001172 sequences of unequal length -- it now stops after the shortest one
1173 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001174
Georg Brandl52b92cc2008-05-25 09:43:03 +00001175- Additions: set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001176
1177- Added class decorators per PEP 3129.
1178
1179
1180Extension Modules
1181-----------------
1182
Georg Brandl52b92cc2008-05-25 09:43:03 +00001183- Removed the imageop module. Obsolete long with its unit tests
1184 becoming useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001185
Georg Brandl52b92cc2008-05-25 09:43:03 +00001186- Removed these attributes from the operator module: div, idiv,
1187 __div__, __idiv__, isCallable, sequenceIncludes.
1188
1189- Removed these attributes from the sys module: exc_clear(), exc_type,
1190 exc_value, exc_traceback.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001191
1192
1193Library
1194-------
1195
Georg Brandl52b92cc2008-05-25 09:43:03 +00001196- Removed the compiler package. Use of the _ast module and (an
1197 eventual) AST -> bytecode mechanism.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001198
Georg Brandl52b92cc2008-05-25 09:43:03 +00001199- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
1200 linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
1201 stringold, strop, sunaudiodev, timing, xmllib.
Guido van Rossum33d26892007-08-05 15:29:28 +00001202
Georg Brandl52b92cc2008-05-25 09:43:03 +00001203- Moved the toaiff module to Tools/Demos.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001204
Georg Brandl52b92cc2008-05-25 09:43:03 +00001205- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
1206 DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
1207 IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001208
Georg Brandl52b92cc2008-05-25 09:43:03 +00001209- Removed obsolete functions: commands.getstatus(), os.popen*().
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001210
Georg Brandl52b92cc2008-05-25 09:43:03 +00001211- Removed functions in the string module that are also string methods;
Martin v. Löwis967f1e32007-08-14 09:23:10 +00001212 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001213
Georg Brandl52b92cc2008-05-25 09:43:03 +00001214- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001215
Georg Brandl52b92cc2008-05-25 09:43:03 +00001216- Removed xmlrpclib.SlowParser. It was based on xmllib.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001217
1218- Patch #1680961: atexit has been reimplemented in C.
1219
Walter Dörwald41980ca2007-08-16 21:55:45 +00001220- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
1221
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001222Build
1223-----
1224
1225C API
1226-----
1227
Georg Brandl52b92cc2008-05-25 09:43:03 +00001228- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001229
Georg Brandl52b92cc2008-05-25 09:43:03 +00001230- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
1231 PyMember_Get, PyMember_Set.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001232
Georg Brandl52b92cc2008-05-25 09:43:03 +00001233- Removed these C slots/fields: nb_divide, nb_inplace_divide.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001234
Georg Brandl52b92cc2008-05-25 09:43:03 +00001235- Removed these macros: staticforward, statichere, PyArg_GetInt,
1236 PyArg_NoArgs, _PyObject_Del.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001237
Georg Brandl52b92cc2008-05-25 09:43:03 +00001238- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
1239 intintobjargproc, getreadbufferproc, getwritebufferproc,
1240 getsegcountproc, getcharbufferproc, memberlist.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001241
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001242Tests
1243-----
1244
Brett Cannone7a30f72008-03-03 03:36:27 +00001245- Removed test.testall as test.regrtest replaces it.
1246
Brett Cannonced04e02005-02-13 22:53:22 +00001247Documentation
1248-------------
1249
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001250Mac
1251---
1252
Georg Brandl52b92cc2008-05-25 09:43:03 +00001253- The cfmfile module was removed.
Guido van Rossume7ba4952007-06-06 23:52:48 +00001254
Guido van Rossum845702c2007-08-30 18:44:53 +00001255Platforms
1256---------
1257
1258- Support for BeOS and AtheOS was removed (according to PEP 11).
1259
1260- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
1261
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001262Tools/Demos
1263-----------
1264
Georg Brandl52b92cc2008-05-25 09:43:03 +00001265
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001266**(For information about older versions, consult the HISTORY file.)**