blob: 279da30bdb837495e336d7d88da52def97724be6 [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
Barry Warsawa9d499d2008-03-01 18:38:07 +00007What's New in Python 3.0a4?
8===========================
9
10*Release date: XX-XXX-2008*
11
Martin v. Löwis25931462008-03-17 20:43:42 +000012Core and Builtins
13-----------------
14
15- Bug #2301: Don't try decoding the source code into the original
16 encoding for syntax errors.
17
Martin v. Löwis92fab752008-03-08 10:40:41 +000018Extension Modules
19-----------------
20
21- Use wchar_t functions in _locale module.
Barry Warsawa9d499d2008-03-01 18:38:07 +000022
Martin v. Löwis071ef772008-03-08 11:24:24 +000023Library
24-------
25
Guido van Rossumf4169812008-03-17 22:56:06 +000026- A new pickle protocol (protocol 3) is added with explicit support
27 for bytes. This is the default protocol. It intentionally cannot
28 be unpickled by Python 2.x.
29
30- When a pickle written by Python 2.x contains an (8-bit) str
31 instance, this is now decoded to a (Unicode) str instance. The
32 encoding used to do this defaults to ASCII, but can be overridden
33 via two new keyword arguments to the Unpickler class. Previously
34 this would create bytes instances, which is usually wrong: str
35 instances are often used to pickle attribute names etc., and text is
36 more common than binary data anyway.
37
Martin v. Löwis071ef772008-03-08 11:24:24 +000038- Default to ASCII as the locale.getpreferredencoding, if the POSIX
39 system doesn't support CODESET and LANG isn't set or doesn't
40 allow deduction of an encoding.
41
Gregory P. Smith425136b2008-03-17 20:45:21 +000042- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned value.
43
Trent Nelson428de652008-03-18 22:41:35 +000044- Issue #719888: Updated tokenize to use a bytes API. generate_tokens has been
45 renamed tokenize and now works with bytes rather than strings. A new
46 detect_encoding function has been added for determining source file encoding
47 according to PEP-0263. Token sequences returned by tokenize always start
48 with an ENCODING token which specifies the encoding used to decode the file.
49 This token is used to encode the output of untokenize back to bytes.
Barry Warsawa9d499d2008-03-01 18:38:07 +000050
Christian Heimesbc873412007-12-08 22:11:32 +000051What's New in Python 3.0a3?
52===========================
53
Barry Warsaw659fc422008-03-01 17:45:23 +000054*Release date: 29-Feb-2008*
Christian Heimesbc873412007-12-08 22:11:32 +000055
56Core and Builtins
57-----------------
58
Ka-Ping Yeeddaa7062008-03-17 20:35:15 +000059- Issue #2282: io.TextIOWrapper was not overriding seekable() from io.IOBase.
60
Christian Heimesa156e092008-02-16 07:38:31 +000061- Issue #2115: Important speedup in setting __slot__ attributes. Also
62 prevent a possible crash: an Abstract Base Class would try to access a slot
63 on a registered virtual subclass.
64
65- Fixed repr() and str() of complex numbers with infinity or nan as real or
66 imaginary part.
67
68- Clear all free list during a gc.collect() of the highest generation in order
69 to allow pymalloc to free more arenas. Python may give back memory to the
70 OS earlier.
71
72- Issue #2045: Fix an infinite recursion triggered when printing a subclass of
73 collections.defaultdict, if its default_factory is set to a bound method.
74
75- Fixed a minor memory leak in dictobject.c. The content of the free
76 list was not freed on interpreter shutdown.
77
78- Limit free list of method and builtin function objects to 256 entries
79 each.
80
81- Patch #1953: Added ``sys._compact_freelists()`` and the C API functions
82 ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
83 to compact the internal free lists of pre-allocted ints and floats.
84
85- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
86 Python expected the return type int but the fork familie returns pi_t.
87
88- Issue #1678380: Fix a bug that identifies 0j and -0j when they appear
89 in the same code unit.
90
Raymond Hettinger65baa342008-02-07 00:41:02 +000091- Issue #2025 : Add tuple.count() and tuple.index() methods to comply with
92 the collections.Sequence API.
93
Christian Heimesdfc12ed2008-01-31 15:16:38 +000094- Fixed multiple reinitialization of the Python interpreter. The small int
95 list in longobject.c has caused a seg fault during the third finalization.
96
Christian Heimesc04dac02008-01-30 11:27:57 +000097- Issue #1973: bytes.fromhex('') raises SystemError
98
Raymond Hettinger70b64fc2008-01-30 20:15:17 +000099- Issue #1771: remove cmp parameter from sorted() and list.sort()
100
Christian Heimes7b876152008-01-30 09:51:48 +0000101- Issue #1969: split and rsplit in bytearray are inconsistent
102
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000103- map() and no longer accepts None for the first argument.
Raymond Hettinger1dfde1d2008-01-22 23:25:35 +0000104 Use zip() instead.
105
Facundo Batista2336bdd2008-01-19 19:12:01 +0000106- Issue #1769: Now int("- 1") is not allowed any more.
107
Christian Heimes386cd1e2008-01-15 02:01:20 +0000108- Object/longobject.c: long(float('nan')) raises an OverflowError instead
109 of returning 0.
110
Christian Heimes3b06e532008-01-07 20:12:44 +0000111- Issue #1762972: __file__ points to the source file instead of the pyc/pyo
112 file if the py file exists.
113
Guido van Rossumab078dd2008-01-06 00:09:11 +0000114- Issue #1393: object_richcompare() returns NotImplemented instead of
115 False if the objects aren't equal, to give the other side a chance.
116
Guido van Rossume239b002008-01-06 00:44:20 +0000117- Issue #1692: Interpreter was not displaying location of SyntaxError.
Kurt B. Kaiser43b15092008-01-05 04:32:22 +0000118
Amaury Forgeot d'Arcbccd63c2008-01-04 01:21:27 +0000119- Improve some exception messages when Windows fails to load an extension
120 module. Now we get for example '%1 is not a valid Win32 application' instead
121 of 'error code 193'. Also use Unicode strings to deal with non-English
122 locales.
123
Christian Heimesa3534a62007-12-11 19:56:40 +0000124- Issue #1587: Added instancemethod wrapper for PyCFunctions. The Python C API
125 has gained a new type *PyInstanceMethod_Type* and the functions
126 *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* and
127 *PyInstanceMethod_Function(im)*.
128
Amaury Forgeot d'Arcad8dcd52007-12-10 23:58:35 +0000129- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed from the
130 gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE are now enough to
131 print the corresponding list of objects considered by the garbage collector.
132
Guido van Rossume239b002008-01-06 00:44:20 +0000133- Issue #1573: Improper use of the keyword-only syntax makes the parser crash.
Christian Heimesbc873412007-12-08 22:11:32 +0000134
Christian Heimes0ded5b52007-12-10 15:50:56 +0000135- Issue #1564: The set implementation should special-case PyUnicode instead
Guido van Rossume239b002008-01-06 00:44:20 +0000136 of PyString.
Christian Heimes0ded5b52007-12-10 15:50:56 +0000137
Guido van Rossumea6775b2008-02-21 20:16:31 +0000138- Patch #1031213: Decode source line in SyntaxErrors back to its
139 original source encoding.
Christian Heimes7131fd92008-02-19 14:21:46 +0000140
Christian Heimes09aaa882008-02-23 15:01:06 +0000141- inspect.getsource() includes the decorators again.
142
Guido van Rossumea6775b2008-02-21 20:16:31 +0000143- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
144 mountpoint.
Christian Heimes7131fd92008-02-19 14:21:46 +0000145
Christian Heimes7131fd92008-02-19 14:21:46 +0000146- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when the
Guido van Rossumea6775b2008-02-21 20:16:31 +0000147 first chunk fed to the decoder started with a BOM, but was longer than 3
148 bytes.
Christian Heimes7131fd92008-02-19 14:21:46 +0000149
Christian Heimes7131fd92008-02-19 14:21:46 +0000150
Christian Heimesbc873412007-12-08 22:11:32 +0000151Extension Modules
152-----------------
153
Raymond Hettinger736c0ab2008-03-13 02:09:15 +0000154- Code for itertools ifilter(), imap(), and izip() moved to bultins and
155 renamed to filter(), map(), and zip(). Also, renamed izip_longest()
156 to zip_longest() and ifilterfalse() to filterfalse().
157
Christian Heimes043d6f62008-01-07 17:19:16 +0000158- Issue #1762972: Readded the reload() function as imp.reload()
Guido van Rossumea6775b2008-02-21 20:16:31 +0000159
Christian Heimesa156e092008-02-16 07:38:31 +0000160- Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ
161
162- #2063: correct order of utime and stime in os.times() result on Windows.
Christian Heimesbc873412007-12-08 22:11:32 +0000163
Christian Heimes7131fd92008-02-19 14:21:46 +0000164
Christian Heimesbc873412007-12-08 22:11:32 +0000165Library
166-------
167
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000168- Weakref dictionaries now inherit from MutableMapping.
169 XXX their API still needs to be modernized (i.e. eliminate the iter methods).
170
171- Created new UserDict class in collections module. This one inherits from and
Raymond Hettingerb3a65f82008-02-21 22:11:37 +0000172 complies with the MutableMapping ABC. Also, moved UserString and UserList
173 to the collections module. The MutableUserString class was removed.
Raymond Hettinger48b8b662008-02-05 01:53:00 +0000174
Guido van Rossumea6775b2008-02-21 20:16:31 +0000175- Removed UserDict.DictMixin. Replaced all its uses with
176 collections.MutableMapping.
Raymond Hettingeredf3b732008-02-04 22:07:15 +0000177
Guido van Rossume239b002008-01-06 00:44:20 +0000178- Issue #1703: getpass() should flush after writing prompt.
Christian Heimesfc5aa9d2007-12-11 09:00:01 +0000179
Guido van Rossume239b002008-01-06 00:44:20 +0000180- Issue #1585: IDLE uses non-existent xrange() function.
181
182- Issue #1578: Problems in win_getpass.
183
Georg Brandl52d168a2008-01-07 18:10:24 +0000184Build
185-----
186
187- Renamed --enable-unicode configure flag to --with-wide-unicode, since
188 Unicode strings can't be disabled anymore.
189
190
Guido van Rossume239b002008-01-06 00:44:20 +0000191C API
192-----
193
194- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
195 Py_TYPE and Py_REFCNT.
196
197- New API PyImport_ImportModuleNoBlock(), works like PyImport_ImportModule()
198 but won't block on the import lock (returning an error instead).
Christian Heimes0ec88b32007-12-10 17:02:00 +0000199
Christian Heimesbc873412007-12-08 22:11:32 +0000200
Fred Drake0e474a82007-10-11 18:01:43 +0000201What's New in Python 3.0a2?
Christian Heimesbc873412007-12-08 22:11:32 +0000202===========================
Fred Drake0e474a82007-10-11 18:01:43 +0000203
Guido van Rossum99533a92007-12-06 05:07:41 +0000204*Release date: 07-Dec-2007*
205
206(Note: this list is incomplete.)
Fred Drake0e474a82007-10-11 18:01:43 +0000207
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000208Core and Builtins
209-----------------
210
Brett Cannon37f7e6e2007-10-26 05:42:09 +0000211- str8 now has the same construction signature as bytes.
212
Brett Cannon40430012007-10-22 20:24:51 +0000213- Comparisons between str and str8 now return False/True for ==/!=. sqlite3
214 returns str8 when recreating on object from it's __conform__ value. The
215 struct module returns str8 for all string-related formats. This was true
216 before this change, but becomes more apparent thanks to string comparisons
217 always being False.
218
Guido van Rossum40d20bc2007-10-22 00:09:51 +0000219- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, buffer,
220 encoding, newline)`
221
222- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
223
224- Changed `__file__` and `co_filename` to unicode. The path names are decoded
225 with `Py_FileSystemDefaultEncoding` and a new API method
226 `PyUnicode_DecodeFSDefault(char*)` was added.
227
Guido van Rossum2dced8b2007-10-30 17:27:30 +0000228- io.open() and _fileio.FileIO have grown a new argument closefd. A false
229 value disables the closing of the file descriptor.
230
Guido van Rossum98297ee2007-11-06 21:34:58 +0000231- Added a new option -b to issues warnings (-bb for errors) about certain
232 operations between bytes/buffer and str like str(b'') and comparsion.
233
Christian Heimes58cb1b82007-11-13 02:19:40 +0000234- The standards streams sys.stdin, stdout and stderr may be None when the
235 when the C runtime library returns an invalid file descriptor for the
236 streams (fileno(stdin) < 0). For now this happens only for Windows GUI
237 apps and scripts started with `pythonw.exe`.
238
Christian Heimesbce52be2007-11-17 19:08:41 +0000239- Added PCbuild9 directory for VS 2008.
240
241- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to work
242 around a name clash with VS 2008 on Windows.
243
Christian Heimesff737952007-11-27 10:40:20 +0000244- Unbound methods are gone for good. ClassObject.method returns an ordinary
245 function object, instance.method still returns a bound method object.
246 The API of bound methods is cleaned up, too. The im_class attribute is
247 removed and im_func + im_self are renamed to __func__ and __self__. The
248 factory PyMethod_New takes only func and instance as argument.
249
Christian Heimesf78b1c62007-12-02 16:52:32 +0000250- intobject.h is no longer included by Python.h. The remains were moved
251 to longobject.h. It still exists to define several aliases from PyInt_
252 to PyLong_ functions.
253
Christian Heimesa37d4c62007-12-04 23:02:19 +0000254- Removed sys.maxint, use sys.maxsize instead.
255
Christian Heimesbce52be2007-11-17 19:08:41 +0000256
Fred Drake0e474a82007-10-11 18:01:43 +0000257Extension Modules
258-----------------
259
260- The `hotshot` profiler has been removed; use `cProfile` instead.
261
262
Brett Cannone9fd2312007-10-12 19:18:19 +0000263Library
264-------
265
266- When loading an external file using testfile(), the passed-in encoding
267 argument was being ignored if __loader__ is defined and forcing the source to
268 be UTF-8.
269
Guido van Rossum687b9c02007-10-25 23:18:51 +0000270- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have been
271 removed in favor of the tempfile module.
272
Christian Heimesc9543e42007-11-28 08:28:28 +0000273- Removed the 'new' module.
274
275- Removed all types from the 'types' module that are easily accessable through
276 builtins.
Brett Cannone9fd2312007-10-12 19:18:19 +0000277
Georg Brandl52d168a2008-01-07 18:10:24 +0000278
Guido van Rossum4405cf32007-08-30 17:16:55 +0000279What's New in Python 3.0a1?
Guido van Rossum45aecf42006-03-15 04:58:47 +0000280==========================
Thomas Wouters4d70c3d2006-06-08 14:42:34 +0000281
Guido van Rossum4405cf32007-08-30 17:16:55 +0000282*Release date: 31-Aug-2007*
Neal Norwitz4886cc32006-08-21 17:06:07 +0000283
284Core and Builtins
285-----------------
286
Martin v. Löwis47383402007-08-15 07:32:56 +0000287- PEP 3131: Support non-ASCII identifiers.
288
Martin v. Löwis447d33e2007-07-29 18:10:01 +0000289- PEP 3120: Change default encoding to UTF-8.
290
Martin v. Löwis9f2e3462007-07-21 17:22:18 +0000291- PEP 3123: Use proper C inheritance for PyObject.
292
Guido van Rossumcd16bf62007-06-13 18:07:49 +0000293- Removed the __oct__ and __hex__ special methods and added a bin()
294 builtin function.
295
296- PEP 3127: octal literals now start with "0o". Old-style octal literals
297 are invalid. There are binary literals with a prefix of "0b".
298 This also affects int(x, 0).
299
Guido van Rossume7ba4952007-06-06 23:52:48 +0000300- None, True, False are now keywords.
301
Guido van Rossum29478ef2007-05-29 00:39:44 +0000302- PEP 3119: isinstance() and issubclass() can be overridden.
303
Guido van Rossumebe3e162007-05-17 18:20:34 +0000304- Remove BaseException.message.
305
Guido van Rossum1bc535d2007-05-15 18:46:22 +0000306- Remove tuple parameter unpacking (PEP 3113).
307
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +0000308- Remove the f_restricted attribute from frames. This naturally leads to the
Guido van Rossuma8add0e2007-05-14 22:03:55 +0000309 removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
310
Guido van Rossum0368b722007-05-11 16:50:42 +0000311- PEP 3132 was accepted. That means that you can do ``a, *b = range(5)``
312 to assign 0 to a and [1, 2, 3, 4] to b.
313
Guido van Rossum805365e2007-05-07 22:24:25 +0000314- range() now returns an iterator rather than a list. Floats are not allowed.
315 xrange() is no longer defined.
316
Nick Coghlan650f0d02007-04-15 12:05:43 +0000317- Patch #1660500: hide iteration variable in list comps, add set comps
318 and use common code to handle compilation of iterative expressions
319
Guido van Rossume27dc722007-03-27 22:37:34 +0000320- By default, != returns the opposite of ==, unless the latter returns
321 NotImplemented.
322
Collin Winter670e6922007-03-21 02:57:17 +0000323- Patch #1680961: sys.exitfunc has been removed and replaced with a private
324 C-level API.
325
Georg Brandl801dd732007-03-18 20:18:31 +0000326- PEP 3115: new metaclasses: the metaclass is now specified as a
327 keyword arg in the class statement, which can now use the full syntax of
328 a parameter list. Also, the metaclass can implement a __prepare__ function
329 which will be called to create the dictionary for the new class namespace.
330
Georg Brandl428f0642007-03-18 18:35:15 +0000331- The long-deprecated argument "pend" of PyFloat_FromString() has been
332 removed.
333
Georg Brandle32b4222007-03-10 22:13:27 +0000334- The dir() function has been extended to call the __dir__() method on
335 its argument, if it exists. If not, it will work like before. This allows
336 customizing the output of dir() in the presence of a __getattr__().
Brett Cannonba7bf492007-02-27 00:15:55 +0000337
Neal Norwitz8dfc4a92007-08-11 06:39:53 +0000338- Removed support for __members__ and __methods__.
339
Georg Brandle32b4222007-03-10 22:13:27 +0000340- Removed indexing/slicing on BaseException.
Neal Norwitz2633c692007-02-26 22:22:47 +0000341
Georg Brandle32b4222007-03-10 22:13:27 +0000342- input() became raw_input(): the name input() now implements the
Guido van Rossum0240b922007-02-26 21:23:50 +0000343 functionality formerly known as raw_input(); the name raw_input()
344 is no longer defined.
345
Brett Cannon39590462007-02-26 22:01:14 +0000346- Classes listed in an 'except' clause must inherit from BaseException.
Brett Cannonf74225d2007-02-26 21:10:16 +0000347
Guido van Rossumcc2b0162007-02-11 06:12:03 +0000348- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
Guido van Rossumcf1be882007-08-30 22:07:17 +0000349 and .keys(), .items(), .values() return dict views, which behave
350 like sets.
Guido van Rossumcc2b0162007-02-11 06:12:03 +0000351
Guido van Rossum8b545362007-02-09 23:52:14 +0000352- PEP 3105: print is now a function. Also (not in the PEP) the
353 'softspace' attribute of files is now gone (since print() doesn't use
354 it). A side effect of this change is that you can get incomplete
355 output lines in interactive sessions:
356
357 >>> print(42, end="")
Kurt B. Kaiser2c7f3142007-08-30 21:52:19 +0000358 42>>>
Guido van Rossum8b545362007-02-09 23:52:14 +0000359
360 We may be able to fix this after the I/O library rewrite.
Guido van Rossum4502c802007-02-09 05:42:38 +0000361
Brett Cannon398db8b2007-01-29 23:44:37 +0000362- PEP 3102: keyword-only arguments.
363
Guido van Rossumd4588c12007-02-13 19:55:23 +0000364- Int/Long unification is complete. The 'long' built-in type
Guido van Rossumec7027f2007-01-30 00:00:40 +0000365 and literals with trailing 'L' or 'l' have been removed.
366 Performance may be sub-optimal (haven't really benchmarked).
Guido van Rossumab186842007-01-14 03:42:30 +0000367
368- 'except E, V' must now be spelled as 'except E as V' and deletes V
369 at the end of the except clause; V must be a simple name.
370
Neal Norwitzc1505362006-12-28 06:47:50 +0000371- Added function annotations per PEP 3107.
372
Jeremy Hyltona4f9fc62007-02-27 15:53:28 +0000373- Added nonlocal declaration from PEP 3104
374
375 >>> def f(x):
376 ... def inc():
377 ... nonlocal x
378 ... x += 1
379 ... return x
380 ... return inc
381 ...
382 >>> inc = f(0)
383 >>> inc()
384 1
385 >>> inc()
386 2
387
Georg Brandl66a796e2006-12-19 20:50:34 +0000388- Moved intern() to sys.intern().
389
390- exec is now a function.
391
392- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__.
Jack Diederich4dafcc42006-11-28 19:15:13 +0000393
Neal Norwitz4886cc32006-08-21 17:06:07 +0000394- Classic classes are a thing of the past. All classes are new style.
395
396- Exceptions *must* derive from BaseException.
397
398- Integer division always returns a float. The -Q option is no more.
399 All the following are gone:
400 * PyNumber_Divide and PyNumber_InPlaceDivide
401 * __div__, __rdiv__, and __idiv__
402 * nb_divide, nb_inplace_divide
403 * operator.div, operator.idiv, operator.__div__, operator.__idiv__
404 (Only __truediv__ and __floordiv__ remain, not sure how to handle them
405 if we want to re-use __div__ and friends. If we do, it will make
406 it harder to write code for both 2.x and 3.x.)
407
408- 'as' and 'with' are keywords.
409
410- Absolute import is the default behavior for 'import foo' etc.
411
Neal Norwitz378b2c92006-08-29 07:57:22 +0000412- Removed support for syntax:
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000413 backticks (ie, `x`), <>
Neal Norwitz378b2c92006-08-29 07:57:22 +0000414
Neal Norwitz4886cc32006-08-21 17:06:07 +0000415- Removed these Python builtins:
Neal Norwitz01688022007-08-12 00:43:29 +0000416 apply(), callable(), coerce(), execfile(), file(), reduce(), reload()
Neal Norwitz4886cc32006-08-21 17:06:07 +0000417
Neal Norwitz378b2c92006-08-29 07:57:22 +0000418- Removed these Python methods:
419 {}.has_key
420
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000421- Removed these opcodes:
422 BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT
423
424- Remove C API support for restricted execution.
425
Guido van Rossumcf1be882007-08-30 22:07:17 +0000426- zip(), map() and filter() now return iterators, behaving like their
427 itertools counterparts. This also affect map()'s behavior on
428 sequences of unequal length -- it now stops after the shortest one
429 is exhausted.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000430
431- Additions:
Guido van Rossumcf1be882007-08-30 22:07:17 +0000432 set literals, set comprehensions, ellipsis literal.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000433
434- Added class decorators per PEP 3129.
435
436
437Extension Modules
438-----------------
439
440- Remove the imageop module. Obsolete long with its unit tests becoming
441 useless from the removal of rgbimg and imgfile.
Neal Norwitz4886cc32006-08-21 17:06:07 +0000442
443- Removed these attributes from Python modules:
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000444 * operator module: div, idiv, __div__, __idiv__, isCallable, sequenceIncludes
Guido van Rossume7ba4952007-06-06 23:52:48 +0000445 * sys module: exc_clear(), exc_type, exc_value, exc_traceback
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000446
447
448Library
449-------
450
451- Remove the compiler package. Use of the _ast module and (an eventual)
452 AST -> bytecode mechanism.
453
454- Removed these modules:
Guido van Rossum33d26892007-08-05 15:29:28 +0000455 * audiodev, Bastion, bsddb185, exceptions, linuxaudiodev,
456 md5, MimeWriter, mimify, popen2,
457 rexec, sets, sha, stringold, strop, sunaudiodev, timing, xmllib.
458
459- Moved these modules to Tools/Demos:
460 * toaiff
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000461
462- Remove obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, DEVICE,
463 ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, IOCTL, jpeg,
464 panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
465
466- Remove obsolete functions:
467 * commands.getstatus(), os.popen*,
468
Martin v. Löwis967f1e32007-08-14 09:23:10 +0000469- Remove functions in the string module that are also string methods;
470 Remove string.{letters, lowercase, uppercase}.
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000471
472- Remove support for long obsolete platforms: plat-aix3, plat-irix5.
473
474- Remove xmlrpclib.SlowParser. It was based on xmllib.
475
476- Patch #1680961: atexit has been reimplemented in C.
477
Walter Dörwald41980ca2007-08-16 21:55:45 +0000478- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
479
Guido van Rossumd59da4b2007-05-22 18:11:13 +0000480
481Build
482-----
483
484C API
485-----
486
487- Removed these Python slots:
488 __coerce__, __div__, __idiv__, __rdiv__
Neal Norwitz4886cc32006-08-21 17:06:07 +0000489
Neal Norwitz4886cc32006-08-21 17:06:07 +0000490- Removed these C APIs:
Neal Norwitz8dfc4a92007-08-11 06:39:53 +0000491 PyNumber_Coerce(), PyNumber_CoerceEx(), PyMember_Get, PyMember_Set
Neal Norwitz4886cc32006-08-21 17:06:07 +0000492
493- Removed these C slots/fields:
494 nb_divide, nb_inplace_divide
495
496- Removed these macros:
Neal Norwitz30d1c512007-08-19 22:48:23 +0000497 staticforward, statichere, PyArg_GetInt, PyArg_NoArgs, _PyObject_Del
Neal Norwitz4886cc32006-08-21 17:06:07 +0000498
499- Removed these typedefs:
500 intargfunc, intintargfunc, intobjargproc, intintobjargproc,
Neal Norwitz8dfc4a92007-08-11 06:39:53 +0000501 getreadbufferproc, getwritebufferproc, getsegcountproc, getcharbufferproc,
502 memberlist
Neal Norwitz4886cc32006-08-21 17:06:07 +0000503
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000504
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000505Tests
506-----
507
Brett Cannone7a30f72008-03-03 03:36:27 +0000508- Removed test.testall as test.regrtest replaces it.
509
510
Brett Cannonced04e02005-02-13 22:53:22 +0000511Documentation
512-------------
513
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000514Mac
515---
516
Guido van Rossume7ba4952007-06-06 23:52:48 +0000517- The cfmfile was removed.
518
519
Guido van Rossum845702c2007-08-30 18:44:53 +0000520Platforms
521---------
522
523- Support for BeOS and AtheOS was removed (according to PEP 11).
524
525- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
526
Hye-Shik Chang4e422812005-07-17 02:36:59 +0000527
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000528Tools/Demos
529-----------
530
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +0000531**(For information about older versions, consult the HISTORY file.)**