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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
Amaury Forgeot d'Arc424b4812008-10-30 22:25:31 +000018- Issue #4176: Fixed a crash when pickling an object which ``__reduce__``
19 method does not return iterators for the 4th and 5th items.
20
Christian Heimes6a27efa2008-10-30 21:48:26 +000021- Issue 3723: Fixed initialization of subinterpreters.
22
Christian Heimes5833a2f2008-10-30 21:40:04 +000023- Issue #4213: The file system encoding is now normalized by the
24 codec subsystem, for example UTF-8 is turned into utf-8.
25
Christian Heimes9c94ba42008-10-30 21:34:02 +000026- Issue #4200: Changed the atexit module to store its state in its
27 PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters.
28
Christian Heimesfec925b2008-10-30 21:22:55 +000029- Issue #4237: io.FileIO() was raising invalid warnings caused by
30 insufficient initialization of PyFileIOObject struct members.
31
Amaury Forgeot d'Arcf43ee812008-10-30 20:58:42 +000032- Issue #4170: Pickling a collections.defaultdict object would crash the
33 interpreter.
34
Benjamin Peterson08a8f5f2008-10-19 14:15:00 +000035- Issue #4146: Compilation on OpenBSD has been restored.
36
Brett Cannonda780432008-10-17 03:38:50 +000037- Issue #3574: compile() incorrectly handled source code encoded as Latin-1.
38
Amaury Forgeot d'Arccf8016a2008-10-09 23:37:48 +000039- Issues #2384 and #3975: Tracebacks were not correctly printed when the
40 source file contains a ``coding:`` header: the wrong line was displayed, and
41 the encoding was not respected.
42
Martin v. Löwis4e0630c2008-10-07 13:16:28 +000043- Issue #3740: Null-initialize module state.
44
Benjamin Peterson60320cb2008-09-26 21:49:22 +000045- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object.
46
Amaury Forgeot d'Arcd0db98f2008-09-21 21:49:01 +000047- Issue #1688: On Windows, the input() prompt was not correctly displayed if it
48 contains non-ascii characters.
49
Martin v. Löwis6fea2332008-09-25 04:15:27 +000050- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default.
51
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +000052Library
53-------
54
Amaury Forgeot d'Arc87eee632008-10-17 20:15:53 +000055- Issue #3664: The pickle module could segfault if a subclass of Pickler fails
56 to call the base __init__ method.
57
58- Issue #3725: telnetlib now works completely in bytes.
Benjamin Peterson3de7fb82008-10-15 20:54:24 +000059
Martin v. Löwis33b64502008-10-15 05:58:17 +000060- Issue #4072: Restore build_py_2to3.
61
Martin v. Löwisd8506df2008-10-06 15:19:21 +000062- Issue #4014: Don't claim that Python has an Alpha release status, in addition
63 to claiming it is Mature.
64
Martin v. Löwis04dc25c2008-10-03 16:09:28 +000065- Issue #3187: Add sys.setfilesystemencoding.
66
Guido van Rossumf0af3e32008-10-02 18:55:37 +000067- Issue #3187: Better support for "undecodable" filenames. Code by Victor
68 Stinner, with small tweaks by GvR.
69
Martin v. Löwis601149b2008-09-29 22:19:08 +000070- Issue #3965: Allow repeated calls to turtle.Screen, by making it a
71 true singleton object.
72
Benjamin Peterson3a53fbb2008-09-27 22:04:16 +000073- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers.
74
Amaury Forgeot d'Arcb5cf3012008-09-25 22:27:43 +000075- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly
76 raise a TypeError: "'tuple' object is not callable" instead of the expected
77 dbm.error.
78
Martin v. Löwis60ebb8b2008-09-21 07:32:10 +000079- Bug #3884: Make the turtle module toplevel again.
80
Thomas Heller1308c262008-09-24 19:01:29 +000081- Issue #3547: Fixed ctypes structures bitfields of varying integer
82 sizes.
83
Gerhard Häring6117f422008-09-22 06:04:51 +000084Extension Modules
85-----------------
86
87- Issue #3659: Subclasses of str didn't work as SQL parameters.
88
Martin v. Löwisf63921f2008-10-13 11:30:30 +000089Build
90-----
91
Martin v. Löwisc820eaf2008-10-17 13:47:20 +000092- Issue #4091: Install pythonxy.dll in system32 again.
93
Martin v. Löwisf63921f2008-10-13 11:30:30 +000094- Issue #4018: Disable "for me" installations on Vista.
95
Martin v. Löwis33b64502008-10-15 05:58:17 +000096Tools/Demos
97-----------
98
Martin v. Löwis869bad92008-10-17 15:54:44 +000099- Issue #3717: Fix Demo/embed/demo.c.
100
Martin v. Löwis33b64502008-10-15 05:58:17 +0000101- Issue #4072: Add a distutils demo for build_py_2to3.
102
Barry Warsaw1ecaf2c2008-09-18 04:28:35 +0000103
Barry Warsaw8509df72008-08-21 03:02:47 +0000104What's New in Python 3.0 release candidate 1
105============================================
106
Barry Warsawb8854802008-09-18 03:00:28 +0000107*Release date: 17-Sep-2008*
Barry Warsaw8509df72008-08-21 03:02:47 +0000108
109Core and Builtins
110-----------------
111
Benjamin Peterson5e19e442008-09-10 21:47:03 +0000112- Issue #3827: memoryview lost its size attribute in favor of using len(view).
113
Hirokazu Yamamoto167b12b2008-09-09 14:01:25 +0000114- Issue #3813: could not lanch python.exe via symbolic link on cygwin.
115
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000116- Issue #3705: fix crash when given a non-ascii value on the command line for
Amaury Forgeot d'Arc8530e852008-09-09 07:28:22 +0000117 the "-c" and "-m" parameters. Now the behaviour is as expected under Linux,
118 although under Windows it fails at a later point.
Antoine Pitrou5651eaa2008-09-06 20:46:58 +0000119
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000120- Issue #3279: Importing site at interpreter was failing silently because the
121 site module uses the open builtin which was not initialized at the time.
122
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000123- Issue #3660: Corrected a reference leak in str.encode() when the encoder
124 does not return a bytes object.
125
126- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle
Amaury Forgeot d'Arc1b933ed2008-09-04 22:34:09 +0000127 error conditions.
128
Amaury Forgeot d'Arcf0481112008-09-05 20:48:47 +0000129- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being
Brett Cannon8a9583e2008-09-04 05:04:25 +0000130 tokenized by either a file path or file pointer for the benefit of
131 PyTokenizer_FindEncoding().
132
Antoine Pitroufff95302008-09-03 18:58:51 +0000133- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On
134 these systems, the mbstowcs() function is slightly buggy and must be
135 replaced with strlen() for the purpose of counting of number of wide
136 characters needed to represent the multi-byte character string.
137
Antoine Pitrou658fad82008-09-03 18:34:34 +0000138- Issue #3697: "Fatal Python error: Cannot recover from stack overflow"
139 could be easily encountered under Windows in debug mode when exercising
140 the recursion limit checking code, due to bogus handling of recursion
141 limit when USE_STACKCHEK was enabled.
142
Brett Cannon54bd41d2008-09-02 04:01:42 +0000143- Issue 3639: The _warnings module could segfault the interpreter when
144 unexpected types were passed in as arguments.
145
Antoine Pitrouc6b09eb2008-09-01 15:10:14 +0000146- Issue #3712: The memoryview object had a reference leak and didn't support
147 cyclic garbage collection.
148
Antoine Pitrouf71995782008-08-29 18:37:05 +0000149- Issue #3668: Fix a memory leak with the "s*" argument parser in
150 PyArg_ParseTuple and friends, which occurred when the argument for "s*"
151 was correctly parsed but parsing of subsequent arguments failed.
152
Amaury Forgeot d'Arcdb26f7c2008-08-29 07:13:32 +0000153- Issue #3611: An exception __context__ could be cleared in a complex pattern
154 involving a __del__ method re-raising an exception.
155
Antoine Pitrouec569b72008-08-26 22:40:48 +0000156- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to
157 match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__
158 mechanism. In the process, fix a bug where isinstance() and issubclass(),
159 when given a tuple of classes as second argument, were looking up
160 __instancecheck__ / __subclasscheck__ on the tuple rather than on each
161 type object.
162
Antoine Pitroue2dffc02008-08-26 22:02:58 +0000163- Issue #3663: Py_None was decref'd when printing SyntaxErrors.
164
Benjamin Peterson9edd2bd2008-08-27 00:31:37 +0000165- Issue #3651: Fix various memory leaks when using the buffer
166 interface, or when the "s#" code of PyArg_ParseTuple is given a
167 bytes object.
168
Neal Norwitz6ae2eb22008-08-24 23:50:08 +0000169- Issue #3657: Fix uninitialized memory read when pickling longs.
170 Found by valgrind.
171
Neal Norwitz3ce5d922008-08-24 07:08:55 +0000172- Apply security patches from Apple.
173
Neal Norwitz2f99b242008-08-24 05:48:10 +0000174- Fix crashes on memory allocation failure found with failmalloc.
175
176- Fix memory leaks found with valgrind and update suppressions file.
177
178- Fix compiler warnings in opt mode which would lead to invalid memory reads.
179
180- Fix problem using wrong name in decimal module reported by pychecker.
181
Amaury Forgeot d'Arc20443f32008-08-22 22:05:20 +0000182- Issue #3650: Fixed a reference leak in bytes.split('x').
183
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000184- bytes(o) now tries to use o.__bytes__() before using fallbacks.
185
Gregory P. Smith207f2112008-09-07 06:29:10 +0000186- Issue #1204: The configure script now tests for additional libraries
187 that may be required when linking against readline. This fixes issues
188 with x86_64 builds on some platforms (a few Linux flavors and OpenBSD).
189
Benjamin Petersonc15a0732008-08-26 16:46:47 +0000190C API
191-----
192
193- PyObject_Bytes and PyBytes_FromObject were added.
194
Barry Warsaw8509df72008-08-21 03:02:47 +0000195Library
196-------
197
Guido van Rossum698280d2008-09-10 17:44:35 +0000198- Issue #3756: make re.escape() handle bytes as well as str.
199
Georg Brandl7cd67cc2008-09-09 19:31:25 +0000200- Issue #3800: fix filter() related bug in formatter.py.
201
Antoine Pitrou5fe291f2008-09-06 23:00:03 +0000202- Issue #874900: fix behaviour of threading module after a fork.
203
Antoine Pitrou9e4fdf42008-09-05 23:43:02 +0000204- Issue #3535: zipfile couldn't read some zip files larger than 2GB.
205
206- Issue #3776: Deprecate the bsddb package for removal in 3.0.
207
208- Issue #3762: platform.architecture() fails if python is lanched via
209 its symbolic link.
210
Antoine Pitroud79dc622008-09-05 00:03:33 +0000211- Issue #3660: fix a memory leak in the C accelerator of the pickle module.
212
Antoine Pitrou1d6a16b2008-09-04 21:32:09 +0000213- Issue #3160: the "bdist_wininst" distutils command didn't work.
214
Guilherme Polob212b752008-09-04 11:21:31 +0000215- Issue #1658: tkinter changes dict size during iteration in both
216 tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText.
217
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000218- The bsddb module (and therefore the dbm.bsd module) has been removed.
Gregory P. Smith451e99b2008-09-04 04:46:48 +0000219 It is now maintained outside of the standard library at
220 http://www.jcea.es/programacion/pybsddb.htm.
Benjamin Peterson6ba23322008-09-03 22:59:38 +0000221
Facundo Batistac469d4c2008-09-03 22:49:01 +0000222- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module
223 to the urlparse one. Added a DeprecationWarning in the old module, it
224 will be deprecated in the future.
225
Marc-André Lemburg7b2b1f92008-09-02 12:10:46 +0000226- Issue #3719: platform.architecture() fails if there are spaces in the
227 path to the Python binary.
228
Brett Cannonec92e182008-09-02 02:46:59 +0000229- Issue 3602: As part of the merge of r66135, make the parameters on
230 warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning.
231
Benjamin Petersonb3085c92008-09-01 23:09:31 +0000232- The deprecation warnings for the camelCase threading API names were removed.
233
Jesse Noller338f5782008-09-03 18:22:19 +0000234- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing
235 SEM_VALUE_MAX.
236
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000237Extension Modules
238-----------------
239
Antoine Pitrou9cadb1b2008-09-15 23:02:56 +0000240- Issue #3782: os.write() must not accept unicode strings.
241
Amaury Forgeot d'Arcd8976f12008-09-02 23:22:56 +0000242- Issue #2975: When compiling several extension modules with Visual Studio 2008
243 from the same python interpreter, some environment variables would grow
244 without limit.
245
Benjamin Peterson6784eb72008-08-23 20:32:27 +0000246- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by
247 exploitation of poor argument checking.
248
Jesus Cea6ba33292008-08-31 14:12:11 +0000249- bsddb code updated to version 4.7.3pre2. This code is the same than
250 Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase.
251 The Python code is automatically translated using "2to3". Please, do not
252 update this code in Python 3.0 by hand. Update the 2.6 one and then
253 do "2to3".
254
Benjamin Peterson791dc2f2008-09-05 23:27:15 +0000255- The _bytesio and _stringio modules are now compiled into the python binary.
256
Gregory P. Smith693fc462008-09-06 20:13:06 +0000257- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of
258 mutable bytearray objects where they should have been using immutable bytes.
259
Gregory P. Smith0a608fd2008-09-06 21:34:51 +0000260- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to
261 return bytes objects instead of bytearray objects.
262
Gregory P. Smith693fc462008-09-06 20:13:06 +0000263
Neal Norwitz8f2f22a2008-08-24 20:59:23 +0000264Tools/Demos
265-----------
266
267- Fix Misc/gdbinit so it works.
268
Barry Warsaw8509df72008-08-21 03:02:47 +0000269
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000270Build
271-----
272
Hirokazu Yamamoto54a1cc62008-09-09 17:55:11 +0000273- Issue #3812: Failed to build python if configure --without-threads.
274
Amaury Forgeot d'Arcf7bfcfb2008-09-09 06:42:00 +0000275- Issue #3791: Remove the bsddb module from the Windows installer, and the
276 core bsddb library from the Windows build files.
277
278
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000279What's new in Python 3.0b3?
280===========================
281
Barry Warsaw57c10582008-08-21 02:39:51 +0000282*Release date: 20-Aug-2008*
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000283
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000284Core and Builtins
285-----------------
286
Benjamin Petersonbc74e5b2008-08-23 20:19:17 +0000287- Issue #3653: Fix a segfault when sys.excepthook was called with invalid
288 arguments.
289
Antoine Pitrou616d2852008-08-19 22:09:34 +0000290- Issue #2394: implement more of the memoryview API, with the caveat that
291 only one-dimensional contiguous buffers are supported and exercised right
292 now. Slicing, slice assignment and comparison (equality and inequality)
293 have been added. Also, the tolist() method has been implemented, but only
294 for byte buffers. Endly, the API has been updated to return bytes objects
295 wherever it used to return bytearrays.
296
Antoine Pitrouee58fa42008-08-19 18:22:14 +0000297- Issue #3560: clean up the new C PyMemoryView API so that naming is
298 internally consistent; add macros PyMemoryView_GET_BASE() and
299 PyMemoryView_GET_BUFFER() to access useful properties of a memory views
300 without relying on a particular implementation; remove the ill-named
301 PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead).
302
Thomas Hellerf5049fc2008-08-19 19:49:49 +0000303- ctypes function pointers that are COM methods have a boolean True
304 value again.
305
Antoine Pitrou9a2310d2008-07-25 22:39:39 +0000306- Issue #1819: function calls with several named parameters are now on
307 average 35% faster (as measured by pybench).
308
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000309- The undocumented C APIs PyUnicode_AsString() and
310 PyUnicode_AsStringAndSize() were made private to the interpreter, in
311 order to be able to refine their interfaces for Python 3.1.
312
313 If you need to access the UTF-8 representation of a Unicode object
314 as bytes string, please use PyUnicode_AsUTF8String() instead.
315
Antoine Pitrouaf14b792008-08-07 21:50:41 +0000316- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks
317 to Python 3.0's stricter semantics which allow to avoid successive
318 reallocations of the result string (this also affects str.join()).
319
Marc-André Lemburg4cc0f242008-08-07 18:54:33 +0000320
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000321Library
322-------
323
Hye-Shik Chang50d1f792008-08-23 08:03:03 +0000324- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve
325 a build problem on MacOS with CJK locales. It adds four temporary
326 mappings to existing legacy codecs that are virtually compatible
327 with Mac encodings. They will be replaced by codecs correctly
328 implemented in 3.1.
329
Amaury Forgeot d'Arc41e36672008-08-20 21:35:50 +0000330- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError
331 "global name 'header' is not defined".
332
Antoine Pitroufd036452008-08-19 17:56:33 +0000333- Issue #2834: update the regular expression library to match the unicode
334 standards of py3k. In other words, mixing bytes and unicode strings
335 (be it as pattern, search string or replacement string) raises a TypeError.
336 Moreover, the re.UNICODE flag is enabled automatically for unicode patterns,
337 and can be disabled by specifying a new re.ASCII flag; as for bytes
338 patterns, ASCII matching is the only option and trying to specify re.UNICODE
339 for such patterns raises a ValueError.
340
Guido van Rossum52dbbb92008-08-18 21:44:30 +0000341- Issue #3300: make urllib.parse.[un]quote() default to UTF-8.
342 Code contributed by Matt Giuca. quote() now encodes the input
343 before quoting, unquote() decodes after unquoting. There are
344 new arguments to change the encoding and errors settings.
345 There are also new APIs to skip the encode/decode steps.
346 [un]quote_plus() are also affected.
347
Nick Coghlan36f49522008-08-18 12:31:52 +0000348- Issue #2235: numbers.Number now blocks inheritance of the default id()
349 based hash because that hash mechanism is not correct for numeric types.
350 All concrete numeric types that inherit from Number (rather than just
351 registering with it) must explicitly provide a hash implementation in
352 order for their instances to be hashable.
353
Benjamin Peterson4cd6a952008-08-17 20:23:46 +0000354- Issue #2676: in the email package, content-type parsing was hanging on
355 pathological input because of quadratic or exponential behaviour of a
356 regular expression.
357
Antoine Pitrou87695762008-08-14 22:44:29 +0000358- Issue #3476: binary buffered reading through the new "io" library is now
359 thread-safe.
360
Robert Schuppenies3d1c7de2008-08-10 11:28:17 +0000361- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to
362 menu entries were not deleted.
363
Lars Gustäbel0c24e8b2008-08-02 11:43:24 +0000364- Remove the TarFileCompat class from tarfile.py.
365
Amaury Forgeot d'Arcbdbddf82008-08-01 00:06:49 +0000366- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and
367 accepts the same parameters. It just checks that its first argument is an
368 integer.
369
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000370- Issue #3394: zipfile.writestr sets external attributes when passed a
371 file name rather than a ZipInfo instance, so files are extracted with
372 mode 0600 rather than 000 under Unix.
373
Antoine Pitrouc66f9092008-07-28 19:46:11 +0000374- Issue #2523: Fix quadratic behaviour when read()ing a binary file without
375 asking for a specific length.
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000376
Martin v. Löwis371bb502008-08-16 13:02:57 +0000377Extension Modules
378-----------------
379
380- Bug #3542: Support Unicode strings in _msi module.
381
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000382What's new in Python 3.0b2?
383===========================
384
Barry Warsaw4bd1cef2008-07-18 02:28:44 +0000385*Release date: 17-Jul-2008*
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000386
387Core and Builtins
388-----------------
389
Mark Dickinson65fe25e2008-07-16 11:30:51 +0000390- Issue #3008: the float type has a new instance method 'float.hex'
391 and a new class method 'float.fromhex' to convert floating-point
392 numbers to and from hexadecimal strings, respectively.
393
Eric Smithd68af8f2008-07-16 00:15:35 +0000394- Issue #3083: Add alternate (#) formatting for bin, oct, hex output
395 for str.format(). This adds the prefix 0b, 0o, or 0x, respectively.
396
Amaury Forgeot d'Arca4db6862008-07-04 21:26:43 +0000397- Issue #3280: like chr(), the "%c" format now accepts unicode code points
398 beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On
399 "narrow Unicode" builds, the result is a string of 2 code units, forming a
400 UTF-16 surrogate pair.
401
Georg Brandld52429f2008-07-04 15:55:02 +0000402- Issue #3282: str.isprintable() should return False for undefined
403 Unicode characters.
404
Martin v. Löwis029656f2008-06-30 04:06:08 +0000405- Issue #3236: Return small longs from PyLong_FromString.
406
Benjamin Petersone6528212008-07-15 15:32:09 +0000407- Exception tracebacks now support exception chaining.
408
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000409Library
410-------
411
Brett Cannonc2542e92008-07-25 18:19:20 +0000412- Removed the sunaudio module. Use sunau instead.
413
Thomas Heller47bc8092008-08-19 06:38:12 +0000414- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python
415 api functions without holding the GIL, which could lead to a fatal
416 error when they failed.
417
418- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects.
419
Georg Brandl30704ea02008-07-23 15:07:12 +0000420- Removed "ast" function aliases from the parser module.
421
Thomas Heller15383a02008-07-15 19:46:52 +0000422- Issue #3313: Fixed a crash when a failed dlopen() call does not set
423 a valid dlerror() message.
424
Thomas Heller0261e1e2008-07-15 17:25:07 +0000425- Issue #3258: Fixed a crash when a ctypes POINTER type to an
426 incomplete structure was created.
427
Georg Brandl1abcbf82008-07-01 19:28:43 +0000428- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the
429 argument now must be a bytes object in any case.
430
Amaury Forgeot d'Arc9196dc62008-06-19 20:54:32 +0000431- Issue #3145: help("modules whatever") failed when trying to load the source
432 code of every single module of the standard library, including invalid files
433 used in the test suite.
434
Georg Brandlbded4d32008-07-17 18:15:35 +0000435- The gettext library now consistently uses Unicode strings for message ids
436 and message strings, and ``ugettext()`` and the like don't exist anymore.
Benjamin Peterson801844d2008-07-14 14:32:15 +0000437
Benjamin Petersone6528212008-07-15 15:32:09 +0000438- The traceback module has been expanded to handle chained exceptions.
439
Amaury Forgeot d'Arc612f61f2008-07-02 23:02:21 +0000440C API
441-----
442
443- Issue #3247: the function Py_FindMethod was removed. Modern types should
444 use the tp_methods slot instead.
445
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000446Tools/Demos
447-----------
448
Georg Brandl336341f2008-07-01 20:21:28 +0000449- The Mac/Demos directory has been removed.
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000450
Georg Brandl336341f2008-07-01 20:21:28 +0000451- All of the Mac scripts have been removed (including BuildApplet.py).
Benjamin Petersonde9c8692008-07-01 18:23:09 +0000452
453
Brett Cannon0d71ee72008-05-08 18:13:40 +0000454What's new in Python 3.0b1?
455===========================
456
Barry Warsawc1e689e2008-06-19 00:35:43 +0000457*Release date: 18-Jun-2008*
Brett Cannon0d71ee72008-05-08 18:13:40 +0000458
459Core and Builtins
460-----------------
461
Brett Cannondb734912008-06-27 00:52:15 +0000462- Issue #3211: warnings.warn_explicit() did not guard against its 'registry'
463 argument being anything other than a dict or None. Also fixed a bug in error
464 handling when 'message' and 'category' were both set to None, triggering a
465 bus error.
466
Amaury Forgeot d'Arcc856c7a2008-06-16 19:50:09 +0000467- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which
468 holds the last (strong) reference to its referent.
469
Georg Brandl559e5d72008-06-11 18:37:52 +0000470- Issue #2630: implement PEP 3138. repr() now returns printable
471 Unicode characters unescaped, to get an ASCII-only representation
472 of an object use ascii().
473
Amaury Forgeot d'Arcf1ca0b12008-06-11 17:40:47 +0000474- Issue #1342: On windows, Python could not start when installed in a
475 directory with non-ascii characters.
476
Martin v. Löwis1a214512008-06-11 05:26:20 +0000477- Implement PEP 3121: new module initialization and finalization API.
478
Georg Brandle1b5ac62008-06-04 13:06:58 +0000479- Removed the already-defunct ``-t`` option.
480
Amaury Forgeot d'Arc74c71f52008-05-26 21:41:42 +0000481- Issue #2957: Corrected a ValueError "recursion limit exceeded", when
482 unmarshalling many code objects, which happens when importing a
483 large .pyc file (~1000 functions).
484
Georg Brandl52b92cc2008-05-25 09:43:03 +0000485- Issue #2963: fix merging oversight that disabled method cache for
486 all types.
Georg Brandl1bcf35a2008-05-25 09:32:09 +0000487
Georg Brandlc9b09532008-05-25 09:24:38 +0000488- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
489
Georg Brandl52b92cc2008-05-25 09:43:03 +0000490- Issue #2895: Don't crash when given bytes objects as keyword names.
Georg Brandld8b690f2008-05-16 17:28:50 +0000491
Georg Brandl52b92cc2008-05-25 09:43:03 +0000492- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
493 code now allows any unicode string and returns a utf-8 encoded
494 buffer, just like the "s#" code already does. The "z" code was
495 corrected as well.
Amaury Forgeot d'Arc07404592008-05-12 13:19:07 +0000496
Georg Brandl52b92cc2008-05-25 09:43:03 +0000497- Issue #2863: generators now have a ``gen.__name__`` attribute that
498 equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
499 ``func.func_code.co_name``. The repr() of a generator now also
500 contains this name.
Alexandre Vassalottie9f305f2008-05-16 04:39:54 +0000501
502- Issue #2831: enumerate() now has a ``start`` argument.
503
Georg Brandl52b92cc2008-05-25 09:43:03 +0000504- Issue #2801: fix bug in the float.is_integer method where a
505 ValueError was sometimes incorrectly raised.
Mark Dickinsonc4352b02008-05-09 13:55:01 +0000506
Georg Brandl52b92cc2008-05-25 09:43:03 +0000507- The ``--with-toolbox-glue`` option (and the associated
508 pymactoolbox.h) have been removed.
Benjamin Peterson79629ab2008-05-14 21:07:12 +0000509
Georg Brandl52b92cc2008-05-25 09:43:03 +0000510- Issue #2196: hasattr() now lets exceptions which do not inherit
511 Exception (KeyboardInterrupt, and SystemExit) propagate instead of
512 ignoring them.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000513
Benjamin Petersoneec3d712008-06-11 15:59:43 +0000514- #3021 Exception reraising sematics have been significantly improved. However,
515 f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python
516 code anymore.
517
Benjamin Peterson4f92ca42008-06-11 20:21:57 +0000518- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been
519 removed.
520
Brett Cannon0d71ee72008-05-08 18:13:40 +0000521Extension Modules
522-----------------
523
Georg Brandl38feaf02008-05-25 07:45:51 +0000524- Renamed ``_winreg`` module to ``winreg``.
525
Georg Brandl52b92cc2008-05-25 09:43:03 +0000526- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
527 platform.
Alexandre Vassalottibee32532008-05-16 18:15:12 +0000528
529- Support for Windows 9x has been removed from the winsound module.
530
Georg Brandl52b92cc2008-05-25 09:43:03 +0000531- Issue #2870: cmathmodule.c compile error.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000532
Brett Cannon0d71ee72008-05-08 18:13:40 +0000533Library
534-------
535
Benjamin Peterson87069fd2008-08-20 02:00:14 +0000536- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of
537 symtable.Symbol have been removed.
538
Amaury Forgeot d'Arccb0d2d72008-06-18 22:19:22 +0000539- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows.
540
Jeremy Hylton1afc1692008-06-18 20:49:58 +0000541- a new ``urllib`` package was created. It consists of code from
542 ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old
543 modules have all been removed. The new package has five submodules:
544 ``urllib.parse``, ``urllib.request``, ``urllib.response``,
545 ``urllib.error``, and ``urllib.robotparser``. The
546 ``urllib.request.urlopen()`` function uses the url opener from
547 ``urllib2``. (Note that the unittests have not been renamed for the
548 beta, but they will be renamed in the future.)
549
Benjamin Petersona0c0a4a2008-06-12 22:15:50 +0000550- rfc822 has been removed in favor of the email package.
551
Benjamin Peterson425ea7f2008-06-12 14:11:35 +0000552- mimetools has been removed in favor of the email package.
Benjamin Peterson23c51a22008-06-12 14:06:57 +0000553
Barry Warsawf5019422008-06-12 02:42:00 +0000554- Patch #2849: Remove use of rfc822 module from standard library.
555
Alexandre Vassalotti794652d2008-06-11 22:58:36 +0000556- Added C optimized implementation of io.StringIO.
557
Alexandre Vassalottica2d6102008-06-12 18:26:05 +0000558- The ``pickle`` module is now automatically use an optimized C
559 implementation of Pickler and Unpickler when available. The
560 ``cPickle`` module is no longer needed.
561
Georg Brandl877b10a2008-06-01 21:25:55 +0000562- Removed the ``htmllib`` and ``sgmllib`` modules.
563
Georg Brandl61013952008-05-28 15:56:30 +0000564- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have
565 been removed from ``http.cookies``.
566
Brett Cannona23810f2008-05-26 19:04:21 +0000567- The ``commands`` module has been removed. Its getoutput() and
568 getstatusoutput() functions have been moved to the ``subprocess`` module.
569
Georg Brandl3d5c4252008-05-26 18:03:26 +0000570- The ``http`` package was created; it contains the old ``httplib``
571 as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib``
572 as ``http.cookiejar``, and the content of the three ``HTTPServer``
573 modules as ``http.server``.
574
Georg Brandl38eceaa2008-05-26 11:14:17 +0000575- The ``xmlrpc`` package was created; it contains the old
576 ``xmlrpclib`` module as ``xmlrpc.client`` and the content of
577 the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000578 as ``xmlrpc.server``.
Georg Brandl38eceaa2008-05-26 11:14:17 +0000579
580- The ``dbm`` package was created, containing the old modules
581 ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having
582 ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``),
583 ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``)
584 as submodules.
585
Georg Brandl52b92cc2008-05-25 09:43:03 +0000586- The ``repr`` module has been renamed to ``reprlib``.
Alexandre Vassalotti1f2ba4b2008-05-16 07:12:44 +0000587
Georg Brandl52b92cc2008-05-25 09:43:03 +0000588- The ``statvfs`` module has been removed.
Brett Cannonacbb7862008-05-16 00:42:57 +0000589
Georg Brandl52b92cc2008-05-25 09:43:03 +0000590- Issue #1713041: fix pprint's handling of maximum depth.
Alexandre Vassalottieca20b62008-05-16 02:54:33 +0000591
Georg Brandl52b92cc2008-05-25 09:43:03 +0000592- Issue #2250: Exceptions raised during evaluation of names in
593 rlcompleter's ``Completer.complete()`` method are now caught and
594 ignored.
Alexandre Vassalotti8ae3e052008-05-16 00:41:41 +0000595
Georg Brandl52b92cc2008-05-25 09:43:03 +0000596- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
597 ``TextWrapper`` class.
Alexandre Vassalotti1d1eaa42008-05-14 22:59:42 +0000598
Alexandre Vassalotti6461e102008-05-15 22:09:29 +0000599- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
600 large to fit in a C long. ldexp(x, n) now returns a zero (with
601 suitable sign) if n is large and negative; previously, it raised
602 OverflowError.
603
Georg Brandl52b92cc2008-05-25 09:43:03 +0000604- The ``ConfigParser`` module has been renamed to ``configparser``.
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000605
Georg Brandl52b92cc2008-05-25 09:43:03 +0000606- Issue #2865: webbrowser.open() works again in a KDE environment.
Amaury Forgeot d'Arc2b2b44d2008-05-12 14:41:00 +0000607
Georg Brandl52b92cc2008-05-25 09:43:03 +0000608- The ``multifile`` module has been removed.
Brett Cannond3343cb2008-05-12 03:18:21 +0000609
Georg Brandl52b92cc2008-05-25 09:43:03 +0000610- The ``SocketServer`` module has been renamed to ``socketserver``.
Alexandre Vassalottice261952008-05-12 02:31:37 +0000611
Georg Brandl52b92cc2008-05-25 09:43:03 +0000612- Fixed the ``__all__`` setting on ``collections`` to include
613 ``UserList`` and ``UserString``.
Brett Cannon23a4a7b2008-05-12 00:56:28 +0000614
Brett Cannoncf3520c2008-05-11 22:47:58 +0000615- The sre module has been removed.
616
Alexandre Vassalottif260e442008-05-11 19:59:59 +0000617- The Queue module has been renamed to queue.
618
Alexandre Vassalottif7fa63d2008-05-11 08:55:36 +0000619- The copy_reg module has been renamed to copyreg.
620
Brett Cannond8b61ee2008-05-11 03:00:26 +0000621- The mhlib module has been removed.
622
Brett Cannonbd474422008-05-10 22:42:14 +0000623- The ihooks module has been removed.
624
Brett Cannonb59a2bd2008-05-10 22:03:16 +0000625- The fpformat module has been removed.
626
Brett Cannonf4fd9932008-05-10 21:11:46 +0000627- The dircache module has been removed.
628
Brett Cannond175b4c2008-05-10 03:19:54 +0000629- The Canvas module has been removed.
630
Mark Dickinsonb27406c2008-05-09 13:42:33 +0000631- The Decimal module gained the magic methods __round__, __ceil__,
632 __floor__ and __trunc__, to give support for round, math.ceil,
633 math.floor and math.trunc.
634
Brett Cannon900ee3a2008-05-08 20:31:11 +0000635- The user module has been removed.
636
Brett Cannon34afe872008-05-08 20:31:44 +0000637- The mutex module has been removed.
638
Brett Cannon0d71ee72008-05-08 18:13:40 +0000639- The imputil module has been removed.
640
Georg Brandl52b92cc2008-05-25 09:43:03 +0000641- os.path.walk has been removed in favor of os.walk.
Benjamin Petersond71ca412008-05-08 23:44:58 +0000642
Alexandre Vassalotti5f8ced22008-05-16 00:03:33 +0000643- pdb gained the "until" command.
644
Georg Brandl52b92cc2008-05-25 09:43:03 +0000645- The test.test_support module has been renamed to test.support.
Benjamin Petersonee8712c2008-05-20 21:35:26 +0000646
Georg Brandl32de7af2008-08-18 23:07:41 +0000647- The threading module API was renamed to be PEP 8 compliant. The
648 old names are still present, but will be removed in the near future.
Benjamin Peterson672b8032008-06-11 19:14:14 +0000649
Georg Brandl294d5a92008-06-01 19:25:32 +0000650Tools/Demos
651-----------
652
653- The bgen tool has been removed.
Benjamin Peterson630c8292008-06-01 18:50:38 +0000654
Brett Cannon0d71ee72008-05-08 18:13:40 +0000655Build
656-----
657
658
Barry Warsaw66079cd2008-04-04 01:36:36 +0000659What's New in Python 3.0a5?
660===========================
661
Barry Warsaw9eab8b02008-05-08 13:05:38 +0000662*Release date: 08-May-2008*
Barry Warsaw66079cd2008-04-04 01:36:36 +0000663
664Core and Builtins
665-----------------
666
Georg Brandl52b92cc2008-05-25 09:43:03 +0000667- Fixed misbehaviour of PyLong_FromSsize_t on systems where
668 sizeof(size_t) > sizeof(long).
Mark Dickinson7ab6be22008-04-15 21:42:42 +0000669
Georg Brandl52b92cc2008-05-25 09:43:03 +0000670- Issue #2221: Corrected a SystemError "error return without exception
671 set", when the code executed by exec() raises an exception, and
672 sys.stdout.flush() also raises an error.
Amaury Forgeot d'Arc7fedbe52008-04-10 21:03:09 +0000673
Georg Brandl52b92cc2008-05-25 09:43:03 +0000674- Bug #2565: The repr() of type objects now calls them 'class', not
675 'type' - whether they are builtin types or not.
Martin v. Löwis250ad612008-04-07 05:43:42 +0000676
Martin v. Löwis790465f2008-04-05 20:41:37 +0000677- The command line processing was converted to pass Unicode strings
678 through as unmodified as possible; as a consequence, the C API
679 related to command line arguments was changed to use wchar_t.
680
Georg Brandl52b92cc2008-05-25 09:43:03 +0000681- All backslashes in raw strings are interpreted literally. This
682 means that '\u' and '\U' escapes are not treated specially.
Benjamin Petersona2f837f2008-04-28 21:05:10 +0000683
Barry Warsaw66079cd2008-04-04 01:36:36 +0000684Extension Modules
685-----------------
686
687Library
688-------
689
Georg Brandl52b92cc2008-05-25 09:43:03 +0000690- ctypes objects now support the PEP3118 buffer interface.
Thomas Hellerb041fda2008-04-30 17:11:46 +0000691
Thomas Hellere106dc32008-04-24 18:39:36 +0000692- Issue #2682: ctypes callback functions now longer contain a cyclic
693 reference to themselves.
694
Georg Brandl52b92cc2008-05-25 09:43:03 +0000695- Issue #2058: Remove the buf attribute and add __slots__ to the
696 TarInfo class in order to reduce tarfile's memory usage.
Lars Gustäbelc2ea8c62008-04-14 10:05:48 +0000697
Martin v. Löwis8efc62c2008-04-10 19:02:25 +0000698- Bug #2606: Avoid calling .sort() on a dict_keys object.
699
Thomas Hellerbff533b2008-04-04 19:53:14 +0000700- The bundled libffi copy is now in sync with the recently released
701 libffi3.0.5 version, apart from some small changes to
702 Modules/_ctypes/libffi/configure.ac.
703
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000704Build
705-----
706
Mark Dickinsonb0e2b4c2008-04-26 20:48:56 +0000707- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
708
Guido van Rossumdc21db32008-04-07 18:37:41 +0000709- "make install" is now an alias for "make altinstall", to prevent
Georg Brandl52b92cc2008-05-25 09:43:03 +0000710 accidentally overwriting a Python 2.x installation. Use "make
711 fullinstall" to force Python 3.0 to be installed as "python".
Guido van Rossumdc21db32008-04-07 18:37:41 +0000712
Thomas Hellerf44b9a12008-04-04 10:18:23 +0000713- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
714 gcc is used as compiler.
Barry Warsaw66079cd2008-04-04 01:36:36 +0000715
Georg Brandl52b92cc2008-05-25 09:43:03 +0000716
Barry Warsawa9d499d2008-03-01 18:38:07 +0000717What's New in Python 3.0a4?
718===========================
719
Barry Warsawbb5cd082008-04-02 23:33:27 +0000720*Release date: 02-Apr-2008*
Barry Warsawa9d499d2008-03-01 18:38:07 +0000721
Martin v. Löwis25931462008-03-17 20:43:42 +0000722Core and Builtins
723-----------------
724
725- Bug #2301: Don't try decoding the source code into the original
726 encoding for syntax errors.
727
Martin v. Löwis92fab752008-03-08 10:40:41 +0000728Extension Modules
729-----------------
730
Neal Norwitz6cf49cf2008-03-24 06:22:57 +0000731- The dl module was removed, use the ctypes module instead.
732
Martin v. Löwis92fab752008-03-08 10:40:41 +0000733- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +0000734
Martin v. Löwis071ef772008-03-08 11:24:24 +0000735Library
736-------
737
Georg Brandl52b92cc2008-05-25 09:43:03 +0000738- The class distutils.commands.build_py.build_py_2to3 can be used as a
739 build_py replacement to automatically run 2to3 on modules that are
740 going to be installed.
Martin v. Löwis73a22f02008-03-22 00:35:10 +0000741
Guido van Rossumf4169812008-03-17 22:56:06 +0000742- A new pickle protocol (protocol 3) is added with explicit support
743 for bytes. This is the default protocol. It intentionally cannot
744 be unpickled by Python 2.x.
745
746- When a pickle written by Python 2.x contains an (8-bit) str
747 instance, this is now decoded to a (Unicode) str instance. The
748 encoding used to do this defaults to ASCII, but can be overridden
749 via two new keyword arguments to the Unpickler class. Previously
750 this would create bytes instances, which is usually wrong: str
751 instances are often used to pickle attribute names etc., and text is
752 more common than binary data anyway.
753
Martin v. Löwis071ef772008-03-08 11:24:24 +0000754- Default to ASCII as the locale.getpreferredencoding, if the POSIX
Georg Brandl52b92cc2008-05-25 09:43:03 +0000755 system doesn't support CODESET and LANG isn't set or doesn't allow
756 deduction of an encoding.
Martin v. Löwis071ef772008-03-08 11:24:24 +0000757
Georg Brandl52b92cc2008-05-25 09:43:03 +0000758- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
759 value.
Gregory P. Smith425136b2008-03-17 20:45:21 +0000760
Georg Brandl52b92cc2008-05-25 09:43:03 +0000761- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
762 has been renamed tokenize and now works with bytes rather than
763 strings. A new detect_encoding function has been added for
764 determining source file encoding according to PEP-0263. Token
765 sequences returned by tokenize always start with an ENCODING token
766 which specifies the encoding used to decode the file. This token is
767 used to encode the output of untokenize back to bytes.
768
Barry Warsawa9d499d2008-03-01 18:38:07 +0000769
Christian Heimesbc873412007-12-08 22:11:32 +0000770What's New in Python 3.0a3?
771===========================
772
Barry Warsaw659fc422008-03-01 17:45:23 +0000773*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +0000774
775Core and Builtins
776-----------------
777
Georg Brandl52b92cc2008-05-25 09:43:03 +0000778- Issue #2282: io.TextIOWrapper was not overriding seekable() from
779 io.IOBase.
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +0000780
Georg Brandl52b92cc2008-05-25 09:43:03 +0000781- Issue #2115: Important speedup in setting __slot__ attributes. Also
782 prevent a possible crash: an Abstract Base Class would try to access
783 a slot on a registered virtual subclass.
Christian Heimesa156e092008-02-16 07:38:31 +0000784
Georg Brandl52b92cc2008-05-25 09:43:03 +0000785- Fixed repr() and str() of complex numbers with infinity or nan as
786 real or imaginary part.
Christian Heimesa156e092008-02-16 07:38:31 +0000787
Georg Brandl52b92cc2008-05-25 09:43:03 +0000788- Clear all free list during a gc.collect() of the highest generation
789 in order to allow pymalloc to free more arenas. Python may give back
790 memory to the OS earlier.
Christian Heimesa156e092008-02-16 07:38:31 +0000791
Georg Brandl52b92cc2008-05-25 09:43:03 +0000792- Issue #2045: Fix an infinite recursion triggered when printing a
793 subclass of collections.defaultdict, if its default_factory is set
794 to a bound method.
Christian Heimesa156e092008-02-16 07:38:31 +0000795
796- Fixed a minor memory leak in dictobject.c. The content of the free
797 list was not freed on interpreter shutdown.
798
Georg Brandl52b92cc2008-05-25 09:43:03 +0000799- Limit free list of method and builtin function objects to 256
800 entries each.
Christian Heimesa156e092008-02-16 07:38:31 +0000801
Georg Brandl52b92cc2008-05-25 09:43:03 +0000802- Patch #1953: Added ``sys._compact_freelists()`` and the C API
803 functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
Christian Heimesa156e092008-02-16 07:38:31 +0000804 to compact the internal free lists of pre-allocted ints and floats.
805
806- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
Georg Brandl52b92cc2008-05-25 09:43:03 +0000807 Python expected the return type int but the fork familie returns
808 pi_t.
Christian Heimesa156e092008-02-16 07:38:31 +0000809
Georg Brandl52b92cc2008-05-25 09:43:03 +0000810- Issue #1678380: Fix a bug that identifies 0j and -0j when they
811 appear in the same code unit.
Christian Heimesa156e092008-02-16 07:38:31 +0000812
Georg Brandl52b92cc2008-05-25 09:43:03 +0000813- Issue #2025: Added tuple.count() and tuple.index() methods to comply
814 with the collections.Sequence API.
Raymond Hettinger65baa342008-02-07 00:41:02 +0000815
Georg Brandl52b92cc2008-05-25 09:43:03 +0000816- Fixed multiple reinitialization of the Python interpreter. The small
817 int list in longobject.c has caused a seg fault during the third
818 finalization.
Christian Heimesdfc12ed2008-01-31 15:16:38 +0000819
Georg Brandl52b92cc2008-05-25 09:43:03 +0000820- Issue #1973: bytes.fromhex('') raised SystemError.
Christian Heimesc04dac02008-01-30 11:27:57 +0000821
Georg Brandl52b92cc2008-05-25 09:43:03 +0000822- Issue #1771: remove cmp parameter from sorted() and list.sort().
Raymond Hettinger70b64fc2008-01-30 20:15:17 +0000823
Georg Brandl52b92cc2008-05-25 09:43:03 +0000824- Issue #1969: split and rsplit in bytearray are inconsistent.
Christian Heimes7b876152008-01-30 09:51:48 +0000825
Georg Brandl52b92cc2008-05-25 09:43:03 +0000826- map() no longer accepts None for the first argument. Use zip()
827 instead.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000828
Facundo Batista2336bdd2008-01-19 19:12:01 +0000829- Issue #1769: Now int("- 1") is not allowed any more.
830
Georg Brandl52b92cc2008-05-25 09:43:03 +0000831- Object/longobject.c: long(float('nan')) raises an OverflowError
832 instead of returning 0.
Christian Heimes386cd1e2008-01-15 02:01:20 +0000833
Georg Brandl52b92cc2008-05-25 09:43:03 +0000834- Issue #1762972: __file__ points to the source file instead of the
835 pyc/pyo file if the py file exists.
Christian Heimes3b06e532008-01-07 20:12:44 +0000836
Guido van Rossumab078dd2008-01-06 00:09:11 +0000837- Issue #1393: object_richcompare() returns NotImplemented instead of
838 False if the objects aren't equal, to give the other side a chance.
839
Guido van Rossume239b002008-01-06 00:44:20 +0000840- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000841
Georg Brandl52b92cc2008-05-25 09:43:03 +0000842- Improve some exception messages when Windows fails to load an
843 extension module. Now we get for example '%1 is not a valid Win32
844 application' instead of 'error code 193'. Also use Unicode strings
845 to deal with non-English locales.
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000846
Georg Brandl52b92cc2008-05-25 09:43:03 +0000847- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
848 Python C API has gained a new type *PyInstanceMethod_Type* and the
849 functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
850 and *PyInstanceMethod_Function(im)*.
Christian Heimesa3534a62007-12-11 19:56:40 +0000851
Georg Brandl52b92cc2008-05-25 09:43:03 +0000852- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
853 from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
854 are now enough to print the corresponding list of objects considered
855 by the garbage collector.
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000856
Georg Brandl52b92cc2008-05-25 09:43:03 +0000857- Issue #1573: Improper use of the keyword-only syntax makes the
858 parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000859
Georg Brandl52b92cc2008-05-25 09:43:03 +0000860- Issue #1564: The set implementation should special-case PyUnicode
861 instead of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000862
Guido van Rossumea6775b2008-02-21 20:16:31 +0000863- Patch #1031213: Decode source line in SyntaxErrors back to its
864 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000865
Christian Heimes09aaa882008-02-23 15:01:06 +0000866- inspect.getsource() includes the decorators again.
867
Guido van Rossumea6775b2008-02-21 20:16:31 +0000868- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
869 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000870
Georg Brandl52b92cc2008-05-25 09:43:03 +0000871- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
872 the first chunk fed to the decoder started with a BOM, but was
873 longer than 3 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000874
Christian Heimesbc873412007-12-08 22:11:32 +0000875Extension Modules
876-----------------
877
Georg Brandl52b92cc2008-05-25 09:43:03 +0000878- Code for itertools ifilter(), imap(), and izip() moved to bultins
879 and renamed to filter(), map(), and zip(). Also, renamed
880 izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000881
Georg Brandl52b92cc2008-05-25 09:43:03 +0000882- Issue #1762972: Readded the reload() function as imp.reload().
Guido van Rossumea6775b2008-02-21 20:16:31 +0000883
Georg Brandl52b92cc2008-05-25 09:43:03 +0000884- Bug #2111: mmap segfaults when trying to write a block opened with
885 PROT_READ.
Christian Heimesa156e092008-02-16 07:38:31 +0000886
Georg Brandl52b92cc2008-05-25 09:43:03 +0000887- Issue #2063: correct order of utime and stime in os.times() result
888 on Windows.
Christian Heimes7131fd92008-02-19 14:21:46 +0000889
Christian Heimesbc873412007-12-08 22:11:32 +0000890Library
891-------
892
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000893- Weakref dictionaries now inherit from MutableMapping.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000894
Georg Brandl52b92cc2008-05-25 09:43:03 +0000895- Created new UserDict class in collections module. This one inherits
896 from and complies with the MutableMapping ABC. Also, moved
897 UserString and UserList to the collections module. The
898 MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000899
Guido van Rossumea6775b2008-02-21 20:16:31 +0000900- Removed UserDict.DictMixin. Replaced all its uses with
901 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000902
Guido van Rossume239b002008-01-06 00:44:20 +0000903- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000904
Guido van Rossume239b002008-01-06 00:44:20 +0000905- Issue #1585: IDLE uses non-existent xrange() function.
906
907- Issue #1578: Problems in win_getpass.
908
Georg Brandl52d168a2008-01-07 18:10:24 +0000909Build
910-----
911
Georg Brandl52b92cc2008-05-25 09:43:03 +0000912- Renamed --enable-unicode configure flag to --with-wide-unicode,
913 since Unicode strings can't be disabled anymore.
Georg Brandl52d168a2008-01-07 18:10:24 +0000914
Guido van Rossume239b002008-01-06 00:44:20 +0000915C API
916-----
917
918- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
919 Py_TYPE and Py_REFCNT.
920
Georg Brandl52b92cc2008-05-25 09:43:03 +0000921- New API PyImport_ImportModuleNoBlock(), works like
922 PyImport_ImportModule() but won't block on the import lock
923 (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000924
Christian Heimesbc873412007-12-08 22:11:32 +0000925
Fred Drake0e474a82007-10-11 18:01:43 +0000926What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000927===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000928
Guido van Rossum99533a92007-12-06 05:07:41 +0000929*Release date: 07-Dec-2007*
930
931(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000932
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000933Core and Builtins
934-----------------
935
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000936- str8 now has the same construction signature as bytes.
937
Georg Brandl52b92cc2008-05-25 09:43:03 +0000938- Comparisons between str and str8 now return False/True for ==/!=.
939 sqlite3 returns str8 when recreating on object from it's __conform__
940 value. The struct module returns str8 for all string-related
941 formats. This was true before this change, but becomes more
942 apparent thanks to string comparisons always being False.
Brett Cannon40430012007-10-22 20:24:51 +0000943
Georg Brandl52b92cc2008-05-25 09:43:03 +0000944- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
945 buffer, encoding, newline)`.
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000946
947- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
948
949- Changed `__file__` and `co_filename` to unicode. The path names are decoded
Antoine Pitrou6e1df8d2008-07-25 19:58:18 +0000950 with `Py_FileSystemDefaultEncoding` and a new API method
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000951 `PyUnicode_DecodeFSDefault(char*)` was added.
952
Georg Brandl52b92cc2008-05-25 09:43:03 +0000953- io.open() and _fileio.FileIO have grown a new argument closefd. A
954 false value disables the closing of the file descriptor.
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000955
Georg Brandl52b92cc2008-05-25 09:43:03 +0000956- Added a new option -b to issues warnings (-bb for errors) about
957 certain operations between bytes/buffer and str like str(b'') and
958 comparison.
Guido van Rossum98297ee2007-11-06 21:34:58 +0000959
Georg Brandl52b92cc2008-05-25 09:43:03 +0000960- The standards streams sys.stdin, stdout and stderr may be None when
961 the when the C runtime library returns an invalid file descriptor
962 for the streams (fileno(stdin) < 0). For now this happens only for
963 Windows GUI apps and scripts started with `pythonw.exe`.
Christian Heimes58cb1b82007-11-13 02:19:40 +0000964
Christian Heimesbce52be2007-11-17 19:08:41 +0000965- Added PCbuild9 directory for VS 2008.
966
Georg Brandl52b92cc2008-05-25 09:43:03 +0000967- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
968 work around a name clash with VS 2008 on Windows.
Christian Heimesbce52be2007-11-17 19:08:41 +0000969
Georg Brandl52b92cc2008-05-25 09:43:03 +0000970- Unbound methods are gone for good. ClassObject.method returns an
971 ordinary function object, instance.method still returns a bound
972 method object. The API of bound methods is cleaned up, too. The
973 im_class attribute is removed and im_func + im_self are renamed to
974 __func__ and __self__. The factory PyMethod_New takes only func and
975 instance as argument.
Christian Heimesff737952007-11-27 10:40:20 +0000976
Georg Brandl52b92cc2008-05-25 09:43:03 +0000977- intobject.h is no longer included by Python.h. The remains were
978 moved to longobject.h. It still exists to define several aliases
979 from PyInt_ to PyLong_ functions.
Christian Heimesf78b1c62007-12-02 16:52:32 +0000980
Christian Heimesa37d4c62007-12-04 23:02:19 +0000981- Removed sys.maxint, use sys.maxsize instead.
982
Fred Drake0e474a82007-10-11 18:01:43 +0000983Extension Modules
984-----------------
985
986- The `hotshot` profiler has been removed; use `cProfile` instead.
987
Brett Cannone9fd2312007-10-12 19:18:19 +0000988Library
989-------
990
Georg Brandl52b92cc2008-05-25 09:43:03 +0000991- When loading an external file using testfile(), the passed-in
992 encoding argument was being ignored if __loader__ is defined and
993 forcing the source to be UTF-8.
Brett Cannone9fd2312007-10-12 19:18:19 +0000994
Georg Brandl52b92cc2008-05-25 09:43:03 +0000995- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
996 been removed in favor of the tempfile module.
Guido van Rossum687b9c02007-10-25 23:18:51 +0000997
Christian Heimesc9543e42007-11-28 08:28:28 +0000998- Removed the 'new' module.
999
Georg Brandl52b92cc2008-05-25 09:43:03 +00001000- Removed all types from the 'types' module that are easily accessable
1001 through builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +00001002
Georg Brandl52d168a2008-01-07 18:10:24 +00001003
Guido van Rossum4405cf32007-08-30 17:16:55 +00001004What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +00001005==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +00001006
Guido van Rossum4405cf32007-08-30 17:16:55 +00001007*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +00001008
1009Core and Builtins
1010-----------------
1011
Martin v. Löwis47383402007-08-15 07:32:56 +00001012- PEP 3131: Support non-ASCII identifiers.
1013
Martin v. Löwis447d33e2007-07-29 18:10:01 +00001014- PEP 3120: Change default encoding to UTF-8.
1015
Martin v. Löwis9f2e3462007-07-21 17:22:18 +00001016- PEP 3123: Use proper C inheritance for PyObject.
1017
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001018- Removed the __oct__ and __hex__ special methods and added a bin()
1019 builtin function.
1020
Georg Brandl52b92cc2008-05-25 09:43:03 +00001021- PEP 3127: octal literals now start with "0o". Old-style octal
1022 literals are invalid. There are binary literals with a prefix of
1023 "0b". This also affects int(x, 0).
Guido van Rossumcd16bf62007-06-13 18:07:49 +00001024
Guido van Rossume7ba4952007-06-06 23:52:48 +00001025- None, True, False are now keywords.
1026
Guido van Rossum29478ef2007-05-29 00:39:44 +00001027- PEP 3119: isinstance() and issubclass() can be overridden.
1028
Guido van Rossumebe3e162007-05-17 18:20:34 +00001029- Remove BaseException.message.
1030
Guido van Rossum1bc535d2007-05-15 18:46:22 +00001031- Remove tuple parameter unpacking (PEP 3113).
1032
Georg Brandl52b92cc2008-05-25 09:43:03 +00001033- Remove the f_restricted attribute from frames. This naturally leads
1034 to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
Guido van Rossuma8add0e2007-05-14 22:03:55 +00001035
Georg Brandl52b92cc2008-05-25 09:43:03 +00001036- PEP 3132 was accepted. That means that you can do ``a, *b =
1037 range(5)`` to assign 0 to a and [1, 2, 3, 4] to b.
Guido van Rossum0368b722007-05-11 16:50:42 +00001038
Georg Brandl52b92cc2008-05-25 09:43:03 +00001039- range() now returns an iterator rather than a list. Floats are not
1040 allowed. xrange() is no longer defined.
Guido van Rossum805365e2007-05-07 22:24:25 +00001041
Nick Coghlan650f0d02007-04-15 12:05:43 +00001042- Patch #1660500: hide iteration variable in list comps, add set comps
Georg Brandl52b92cc2008-05-25 09:43:03 +00001043 and use common code to handle compilation of iterative expressions.
Nick Coghlan650f0d02007-04-15 12:05:43 +00001044
Guido van Rossume27dc722007-03-27 22:37:34 +00001045- By default, != returns the opposite of ==, unless the latter returns
1046 NotImplemented.
1047
Georg Brandl52b92cc2008-05-25 09:43:03 +00001048- Patch #1680961: sys.exitfunc has been removed and replaced with a
1049 private C-level API.
Collin Winter670e6922007-03-21 02:57:17 +00001050
Georg Brandl801dd732007-03-18 20:18:31 +00001051- PEP 3115: new metaclasses: the metaclass is now specified as a
Georg Brandl52b92cc2008-05-25 09:43:03 +00001052 keyword arg in the class statement, which can now use the full
1053 syntax of a parameter list. Also, the metaclass can implement a
1054 __prepare__ function which will be called to create the dictionary
1055 for the new class namespace.
Georg Brandl801dd732007-03-18 20:18:31 +00001056
Georg Brandl428f0642007-03-18 18:35:15 +00001057- The long-deprecated argument "pend" of PyFloat_FromString() has been
1058 removed.
1059
Georg Brandle32b4222007-03-10 22:13:27 +00001060- The dir() function has been extended to call the __dir__() method on
Georg Brandl52b92cc2008-05-25 09:43:03 +00001061 its argument, if it exists. If not, it will work like before. This
1062 allows customizing the output of dir() in the presence of a
1063 __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +00001064
Neal Norwitz8dfc4a92007-08-11 06:39:53 +00001065- Removed support for __members__ and __methods__.
1066
Georg Brandle32b4222007-03-10 22:13:27 +00001067- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +00001068
Georg Brandle32b4222007-03-10 22:13:27 +00001069- input() became raw_input(): the name input() now implements the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001070 functionality formerly known as raw_input(); the name raw_input() is
1071 no longer defined.
Guido van Rossum0240b922007-02-26 21:23:50 +00001072
Georg Brandl52b92cc2008-05-25 09:43:03 +00001073- Classes listed in an 'except' clause must inherit from
1074 BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +00001075
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001076- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +00001077 and .keys(), .items(), .values() return dict views, which behave
1078 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +00001079
Guido van Rossum8b545362007-02-09 23:52:14 +00001080- PEP 3105: print is now a function. Also (not in the PEP) the
Georg Brandl52b92cc2008-05-25 09:43:03 +00001081 'softspace' attribute of files is now gone (since print() doesn't
1082 use it). A side effect of this change is that you can get
1083 incomplete output lines in interactive sessions:
Guido van Rossum8b545362007-02-09 23:52:14 +00001084
1085 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +00001086 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +00001087
1088 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +00001089
Brett Cannon398db8b2007-01-29 23:44:37 +00001090- PEP 3102: keyword-only arguments.
1091
Georg Brandl52b92cc2008-05-25 09:43:03 +00001092- Int/Long unification is complete. The 'long' built-in type and
1093 literals with trailing 'L' or 'l' have been removed. Performance
1094 may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +00001095
1096- 'except E, V' must now be spelled as 'except E as V' and deletes V
1097 at the end of the except clause; V must be a simple name.
1098
Neal Norwitzc1505362006-12-28 06:47:50 +00001099- Added function annotations per PEP 3107.
1100
Georg Brandl52b92cc2008-05-25 09:43:03 +00001101- Added nonlocal declaration from PEP 3104:
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +00001102
1103 >>> def f(x):
1104 ... def inc():
1105 ... nonlocal x
1106 ... x += 1
1107 ... return x
1108 ... return inc
1109 ...
1110 >>> inc = f(0)
1111 >>> inc()
1112 1
1113 >>> inc()
1114 2
1115
Georg Brandl66a796e2006-12-19 20:50:34 +00001116- Moved intern() to sys.intern().
1117
1118- exec is now a function.
1119
1120- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +00001121
Neal Norwitz4886cc32006-08-21 17:06:07 +00001122- Classic classes are a thing of the past. All classes are new style.
1123
1124- Exceptions *must* derive from BaseException.
1125
1126- Integer division always returns a float. The -Q option is no more.
1127 All the following are gone:
1128 * PyNumber_Divide and PyNumber_InPlaceDivide
1129 * __div__, __rdiv__, and __idiv__
1130 * nb_divide, nb_inplace_divide
1131 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
1132 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
1133 if we want to re-use __div__ and friends. If we do, it will make
1134 it harder to write code for both 2.x and 3.x.)
1135
1136- 'as' and 'with' are keywords.
1137
1138- Absolute import is the default behavior for 'import foo' etc.
1139
Georg Brandl52b92cc2008-05-25 09:43:03 +00001140- Removed support for syntax: backticks (ie, `x`), <>.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001141
Georg Brandl52b92cc2008-05-25 09:43:03 +00001142- Removed these Python builtins: apply(), callable(), coerce(),
1143 execfile(), file(), reduce(), reload().
Neal Norwitz4886cc32006-08-21 17:06:07 +00001144
Georg Brandl52b92cc2008-05-25 09:43:03 +00001145- Removed these Python methods: {}.has_key.
Neal Norwitz378b2c92006-08-29 07:57:22 +00001146
Georg Brandl52b92cc2008-05-25 09:43:03 +00001147- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001148
1149- Remove C API support for restricted execution.
1150
Guido van Rossumcf1be882007-08-30 22:07:17 +00001151- zip(), map() and filter() now return iterators, behaving like their
Georg Brandl52b92cc2008-05-25 09:43:03 +00001152 itertools counterparts. This also affect map()'s behavior on
Guido van Rossumcf1be882007-08-30 22:07:17 +00001153 sequences of unequal length -- it now stops after the shortest one
1154 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001155
Georg Brandl52b92cc2008-05-25 09:43:03 +00001156- Additions: set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001157
1158- Added class decorators per PEP 3129.
1159
1160
1161Extension Modules
1162-----------------
1163
Georg Brandl52b92cc2008-05-25 09:43:03 +00001164- Removed the imageop module. Obsolete long with its unit tests
1165 becoming useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001166
Georg Brandl52b92cc2008-05-25 09:43:03 +00001167- Removed these attributes from the operator module: div, idiv,
1168 __div__, __idiv__, isCallable, sequenceIncludes.
1169
1170- Removed these attributes from the sys module: exc_clear(), exc_type,
1171 exc_value, exc_traceback.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001172
1173
1174Library
1175-------
1176
Georg Brandl52b92cc2008-05-25 09:43:03 +00001177- Removed the compiler package. Use of the _ast module and (an
1178 eventual) AST -> bytecode mechanism.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001179
Georg Brandl52b92cc2008-05-25 09:43:03 +00001180- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
1181 linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
1182 stringold, strop, sunaudiodev, timing, xmllib.
Guido van Rossum33d26892007-08-05 15:29:28 +00001183
Georg Brandl52b92cc2008-05-25 09:43:03 +00001184- Moved the toaiff module to Tools/Demos.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001185
Georg Brandl52b92cc2008-05-25 09:43:03 +00001186- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
1187 DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
1188 IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001189
Georg Brandl52b92cc2008-05-25 09:43:03 +00001190- Removed obsolete functions: commands.getstatus(), os.popen*().
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001191
Georg Brandl52b92cc2008-05-25 09:43:03 +00001192- Removed functions in the string module that are also string methods;
Martin v. Löwis967f1e32007-08-14 09:23:10 +00001193 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001194
Georg Brandl52b92cc2008-05-25 09:43:03 +00001195- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001196
Georg Brandl52b92cc2008-05-25 09:43:03 +00001197- Removed xmlrpclib.SlowParser. It was based on xmllib.
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001198
1199- Patch #1680961: atexit has been reimplemented in C.
1200
Walter Dörwald41980ca2007-08-16 21:55:45 +00001201- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
1202
Guido van Rossumd59da4b2007-05-22 18:11:13 +00001203Build
1204-----
1205
1206C API
1207-----
1208
Georg Brandl52b92cc2008-05-25 09:43:03 +00001209- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001210
Georg Brandl52b92cc2008-05-25 09:43:03 +00001211- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
1212 PyMember_Get, PyMember_Set.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001213
Georg Brandl52b92cc2008-05-25 09:43:03 +00001214- Removed these C slots/fields: nb_divide, nb_inplace_divide.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001215
Georg Brandl52b92cc2008-05-25 09:43:03 +00001216- Removed these macros: staticforward, statichere, PyArg_GetInt,
1217 PyArg_NoArgs, _PyObject_Del.
Neal Norwitz4886cc32006-08-21 17:06:07 +00001218
Georg Brandl52b92cc2008-05-25 09:43:03 +00001219- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
1220 intintobjargproc, getreadbufferproc, getwritebufferproc,
1221 getsegcountproc, getcharbufferproc, memberlist.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001222
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001223Tests
1224-----
1225
Brett Cannone7a30f72008-03-03 03:36:27 +00001226- Removed test.testall as test.regrtest replaces it.
1227
Brett Cannonced04e02005-02-13 22:53:22 +00001228Documentation
1229-------------
1230
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001231Mac
1232---
1233
Georg Brandl52b92cc2008-05-25 09:43:03 +00001234- The cfmfile module was removed.
Guido van Rossume7ba4952007-06-06 23:52:48 +00001235
Guido van Rossum845702c2007-08-30 18:44:53 +00001236Platforms
1237---------
1238
1239- Support for BeOS and AtheOS was removed (according to PEP 11).
1240
1241- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
1242
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001243Tools/Demos
1244-----------
1245
Georg Brandl52b92cc2008-05-25 09:43:03 +00001246
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001247**(For information about older versions, consult the HISTORY file.)**