blob: 0cccec9a46f361a6e11228e46c28a446d67ab1d7 [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
Neal Norwitz7a5fc282006-05-15 06:48:14 +00007What's New in Python 2.5 alpha 3?
Anthony Baxter51bcb682006-04-05 14:51:42 +00008=================================
9
Neal Norwitz7a5fc282006-05-15 06:48:14 +000010*Release date: XX-MAY-2006*
Anthony Baxter51bcb682006-04-05 14:51:42 +000011
12Core and builtins
13-----------------
14
Richard Jonescebbefc2006-05-23 18:28:17 +000015- Patch #1337051: reduced size of frame objects.
16
17- PyErr_NewException now accepts a tuple of base classes as its
18 "base" parameter.
19
Georg Brandl658d5132006-05-23 11:17:21 +000020- PyErr_NewException now accepts a tuple of base classes as its
21 "base" parameter.
22
Richard Jones7c88dcc2006-05-23 10:37:38 +000023- Patch #876206: function call speedup by retaining allocated frame
24 objects.
25
Georg Brandl7b90e162006-05-18 07:01:27 +000026- Bug #1462152: file() now checks more thoroughly for invalid mode
27 strings and removes a possible "U" before passing the mode to the
28 C library function.
29
Neal Norwitz1004a532006-05-15 07:17:23 +000030- Patch #1488312, Fix memory alignment problem on SPARC in unicode
31
Neal Norwitz373f0a72006-05-15 07:04:36 +000032- Bug #1487966: Fix SystemError with conditional expression in assignment
33
Martin v. Löwis879768d2006-05-11 13:28:43 +000034- WindowsError now has two error code attributes: errno, which carries
35 the error values from errno.h, and winerror, which carries the error
36 values from winerror.h. Previous versions put the winerror.h values
37 (from GetLastError()) into the errno attribute.
38
Martin v. Löwis77736712006-05-04 05:51:03 +000039- Patch #1475845: Raise IndentationError for unexpected indent.
40
Neal Norwitzc4edb0e2006-05-02 04:43:14 +000041- Patch #1479181: split open() and file() from being aliases for each other.
42
Neal Norwitz7a5fc282006-05-15 06:48:14 +000043Extension Modules
44-----------------
45
Georg Brandl378d5922006-05-17 14:26:50 +000046- Patch #1490224: time.altzone is now set correctly on Cygwin.
47
Georg Brandl8d3342b2006-05-16 07:38:27 +000048- Patch #1435422: zlib's compress and decompress objects now have a
49 copy() method.
50
Neal Norwitz7a5fc282006-05-15 06:48:14 +000051- On Win32, os.listdir now supports arbitrarily-long Unicode path names
52 (up to the system limit of 32K characters).
53
54- Use Win32 API to implement os.{access,chdir,chmod,mkdir,remove,rename,rmdir,utime}.
55 As a result, these functions now raise WindowsError instead of OSError.
56
57- Calling Tk_Init twice is refused if the first call failed as that
58 may deadlock.
59
60Library
61-------
62
Georg Brandlb89316f2006-05-17 15:51:16 +000063- Patch #1180296: Two new functions were added to the locale module:
64 format_string() to get the effect of "format % items" but locale-aware,
65 and currency() to format a monetary number with currency sign.
66
Georg Brandle3a25832006-05-17 14:56:04 +000067- Patch #1486962: Several bugs in the turtle Tk demo module were fixed
68 and several features added, such as speed and geometry control.
69
Georg Brandl49c8f4c2006-05-15 19:30:35 +000070- Patch #1488881: add support for external file objects in bz2 compressed
71 tarfiles.
72
Neal Norwitz7a5fc282006-05-15 06:48:14 +000073- Patch #721464: pdb.Pdb instances can now be given explicit stdin and
74 stdout arguments, making it possible to redirect input and output
75 for remote debugging.
76
77- Patch #1484695: Update the tarfile module to version 0.8. This fixes
78 a couple of issues, notably handling of long file names using the
79 GNU LONGNAME extension.
80
81- Patch #1478292. ``doctest.register_optionflag(name)`` shouldn't create a
82 new flag when ``name`` is already the name of an option flag.
83
84- Bug #1385040: don't allow "def foo(a=1, b): pass" in the compiler
85 package.
86
87- Patch #1472854: make the rlcompleter.Completer class usable on non-
88 UNIX platforms.
89
90- Patch #1470846: fix urllib2 ProxyBasicAuthHandler.
91
92Build
93-----
94
Martin v. Löwisa43190b2006-05-22 09:15:18 +000095- Patch #1492356: Port to Windows CE.
96
Neal Norwitz58e28882006-05-19 07:00:58 +000097- Bug/Patch #1481770: Use .so extension for shared libraries on HP-UX for ia64.
98
Neal Norwitz7a5fc282006-05-15 06:48:14 +000099- Patch #1471883: Add --enable-universalsdk.
100
101C API
102-----
103
104Tests
105-----
106
107Tools
108-----
109
110Documentation
111-------------
112
113What's New in Python 2.5 alpha 2?
114=================================
115
116*Release date: 27-APR-2006*
117
118Core and builtins
119-----------------
120
Thomas Heller1b046642006-04-18 18:51:06 +0000121- Bug #1465834: 'bdist_wininst preinstall script support' was fixed
122 by converting these apis from macros into exported functions again:
123
124 PyParser_SimpleParseFile PyParser_SimpleParseString PyRun_AnyFile
125 PyRun_AnyFileEx PyRun_AnyFileFlags PyRun_File PyRun_FileEx
126 PyRun_FileFlags PyRun_InteractiveLoop PyRun_InteractiveOne
127 PyRun_SimpleFile PyRun_SimpleFileEx PyRun_SimpleString
128 PyRun_String Py_CompileString
129
Martin v. Löwis45294a92006-04-18 06:24:08 +0000130- Under COUNT_ALLOCS, types are not necessarily immortal anymore.
131
Martin v. Löwis19ab6c92006-04-16 18:55:50 +0000132- All uses of PyStructSequence_InitType have been changed to initialize
133 the type objects only once, even if the interpreter is initialized
134 multiple times.
135
Neal Norwitz61546162006-04-14 05:20:28 +0000136- Bug #1454485, array.array('u') could crash the interpreter. This was
137 due to PyArgs_ParseTuple(args, 'u#', ...) trying to convert buffers (strings)
138 to unicode when it didn't make sense. 'u#' now requires a unicode string.
139
140- Py_UNICODE is unsigned. It was always documented as unsigned, but
141 due to a bug had a signed value in previous versions.
142
Tim Peters3a5e8b12006-04-11 01:44:07 +0000143- Patch #837242: ``id()`` of any Python object always gives a positive
144 number now, which might be a long integer. ``PyLong_FromVoidPtr`` and
145 ``PyLong_AsVoidPtr`` have been changed accordingly. Note that it has
Tim Peters527f6522006-04-11 01:47:17 +0000146 never been correct to implement a ``__hash()__`` method that returns the
Tim Peters3a5e8b12006-04-11 01:44:07 +0000147 ``id()`` of an object:
Martin v. Löwis0bc2ab92006-04-10 20:28:17 +0000148
Tim Peters3a5e8b12006-04-11 01:44:07 +0000149 def __hash__(self):
150 return id(self) # WRONG
151
152 because a hash result must be a (short) Python int but it was always
153 possible for ``id()`` to return a Python long. However, because ``id()``
Tim Peters527f6522006-04-11 01:47:17 +0000154 could return negative values before, on a 32-bit box an ``id()`` result
Tim Peters3a5e8b12006-04-11 01:44:07 +0000155 was always usable as a hash value before this patch. That's no longer
156 necessarily so.
157
158- Python on OS X 10.3 and above now uses dlopen() (via dynload_shlib.c)
Anthony Baxter82201742006-04-09 15:07:40 +0000159 to load extension modules and now provides the dl module. As a result,
Tim Peters3a5e8b12006-04-11 01:44:07 +0000160 sys.setdlopenflags() now works correctly on these systems. (SF patch
Anthony Baxter82201742006-04-09 15:07:40 +0000161 #1454844)
162
Phillip J. Eby51dd7d92006-04-11 01:21:31 +0000163- Patch #1463867: enhanced garbage collection to allow cleanup of cycles
164 involving generators that have paused outside of any ``try`` or ``with``
165 blocks. (In 2.5a1, a paused generator that was part of a reference
166 cycle could not be garbage collected, regardless of whether it was
167 paused in a ``try`` or ``with`` block.)
Anthony Baxter82201742006-04-09 15:07:40 +0000168
Anthony Baxter51bcb682006-04-05 14:51:42 +0000169Extension Modules
170-----------------
171
Martin v. Löwis7e75f1a2006-04-15 08:35:59 +0000172- Patch #1191065: Fix preprocessor problems on systems where recvfrom
173 is a macro.
174
Georg Brandlbbfe4fa2006-04-11 06:47:43 +0000175- Bug #1467952: os.listdir() now correctly raises an error if readdir()
176 fails with an error condition.
177
Gregory P. Smith3adc4aa2006-04-13 19:19:01 +0000178- Fixed bsddb.db.DBError derived exceptions so they can be unpickled.
179
180- Bug #1117761: bsddb.*open() no longer raises an exception when using
181 the cachesize parameter.
182
183- Bug #1149413: bsddb.*open() no longer raises an exception when using
184 a temporary db (file=None) with the 'n' flag to truncate on open.
185
186- Bug #1332852: bsddb module minimum BerkeleyDB version raised to 3.3
187 as older versions cause excessive test failures.
Gregory P. Smith7f5b6f42006-04-08 07:10:51 +0000188
Armin Rigoa9017c32006-04-19 11:50:27 +0000189- Patch #1062014: AF_UNIX sockets under Linux have a special
190 abstract namespace that is now fully supported.
191
Anthony Baxter51bcb682006-04-05 14:51:42 +0000192Library
193-------
194
Tim Peters711bf302006-04-25 03:31:36 +0000195- Patch #1475231: ``doctest`` has a new ``SKIP`` option, which causes
196 a doctest to be skipped (the code is not run, and the expected output
197 or exception is ignored).
198
Nick Coghlanda2268f2006-04-24 04:37:15 +0000199- Fixed contextlib.nested to cope with exceptions being raised and
200 caught inside exit handlers.
201
Greg Wardab05edc2006-04-23 03:47:58 +0000202- Updated optparse module to Optik 1.5.1 (allow numeric constants in
203 hex, octal, or binary; add ``append_const`` action; keep going if
204 gettext cannot be imported; added ``OptionParser.destroy()`` method;
205 added ``epilog`` for better help generation).
206
Tim Peters21fbd572006-04-21 21:18:10 +0000207- Bug #1473760: ``tempfile.TemporaryFile()`` could hang on Windows, when
208 called from a thread spawned as a side effect of importing a module.
209
Phillip J. Eby17a35f92006-04-18 16:45:14 +0000210- The pydoc module now supports documenting packages contained in
211 .zip or .egg files.
212
213- The pkgutil module now has several new utility functions, such
214 as ``walk_packages()`` to support working with packages that are either
215 in the filesystem or zip files.
216
Andrew M. Kuchling1da4a942006-04-22 02:32:43 +0000217- The mailbox module can now modify and delete messages from
218 mailboxes, in addition to simply reading them. Thanks to Gregory
219 K. Johnson for writing the code, and to the 2005 Google Summer of
220 Code for funding his work.
Phillip J. Eby17a35f92006-04-18 16:45:14 +0000221
Tim Petersc7605f22006-04-17 21:12:33 +0000222- The ``__del__`` method of class ``local`` in module ``_threading_local``
223 returned before accomplishing any of its intended cleanup.
224
Martin v. Löwisbd30f522006-04-17 17:08:37 +0000225- Patch #790710: Add breakpoint command lists in pdb.
226
Martin v. Löwis0db2a982006-04-16 20:55:38 +0000227- Patch #1063914: Add Tkinter.Misc.clipboard_get().
228
Martin v. Löwis4b501e62006-04-15 08:41:11 +0000229- Patch #1191700: Adjust column alignment in bdb breakpoint lists.
230
Anthony Baxtere29002c2006-04-12 12:07:31 +0000231- SimpleXMLRPCServer relied on the fcntl module, which is unavailable on
232 Windows. Bug #1469163.
233
Phillip J. Eby47032112006-04-11 01:07:43 +0000234- The warnings, linecache, inspect, traceback, site, and doctest modules
235 were updated to work correctly with modules imported from zipfiles or
236 via other PEP 302 __loader__ objects.
237
Martin v. Löwis17de8ff2006-04-10 15:55:37 +0000238- Patch #1467770: Reduce usage of subprocess._active to processes which
239 the application hasn't waited on.
240
Martin v. Löwisb04dee92006-04-10 08:34:21 +0000241- Patch #1462222: Fix Tix.Grid.
242
Neal Norwitza31bf182006-04-09 03:35:43 +0000243- Fix exception when doing glob.glob('anything*/')
244
Skip Montanaro262fb922006-04-21 02:31:07 +0000245- The pstats.Stats class accepts an optional stream keyword argument to
246 direct output to an alternate file-like object.
247
Anthony Baxter51bcb682006-04-05 14:51:42 +0000248Build
249-----
250
Martin v. Löwis4be4e652006-04-17 19:25:49 +0000251- The Makefile now has a reindent target, which runs reindent.py on
252 the library.
253
Martin v. Löwis48bbaf22006-04-15 18:06:54 +0000254- Patch #1470875: Building Python with MS Free Compiler
255
Martin v. Löwisc90b17e2006-04-15 08:13:05 +0000256- Patch #1161914: Add a python-config script.
Martin v. Löwis48bbaf22006-04-15 18:06:54 +0000257
Martin v. Löwis0f48d982006-04-14 14:34:26 +0000258- Patch #1324762:Remove ccpython.cc; replace --with-cxx with
259 --with-cxx-main. Link with C++ compiler only if --with-cxx-main was
Andrew M. Kuchlingdb4018f2006-04-14 14:54:18 +0000260 specified. (Can be overridden by explicitly setting LINKCC.) Decouple
Martin v. Löwis0f48d982006-04-14 14:34:26 +0000261 CXX from --with-cxx-main, see description in README.
262
Martin v. Löwis10acfd02006-04-10 12:39:36 +0000263- Patch #1429775: Link extension modules with the shared libpython.
264
Hye-Shik Changf4795c82006-04-26 19:20:26 +0000265- Fixed a libffi build problem on MIPS systems.
266
Tim Peters8931ff12006-05-13 23:28:20 +0000267- ``PyString_FromFormat``, ``PyErr_Format``, and ``PyString_FromFormatV``
268 now accept formats "%u" for unsigned ints, "%lu" for unsigned longs,
269 and "%zu" for unsigned integers of type ``size_t``.
270
Anthony Baxter51bcb682006-04-05 14:51:42 +0000271Tests
272-----
273
Nick Coghlanda2268f2006-04-24 04:37:15 +0000274- test_contextlib now checks contextlib.nested can cope with exceptions
275 being raised and caught inside exit handlers.
276
Nick Coghlan27ec1a72006-04-24 04:32:47 +0000277- test_cmd_line now checks operation of the -m and -c command switches
278
Phillip J. Eby51dd7d92006-04-11 01:21:31 +0000279- The test_contextlib test in 2.5a1 wasn't actually run unless you ran
280 it separately and by hand. It also wasn't cleaning up its changes to
281 the current Decimal context.
282
Thomas Woutersabd08882006-04-26 15:53:30 +0000283- regrtest.py now has a -M option to run tests that test the new limits of
284 containers, on 64-bit architectures. Running these tests is only sensible
285 on 64-bit machines with more than two gigabytes of memory. The argument
286 passed is the maximum amount of memory for the tests to use.
287
Marc-André Lemburgd0b8e832006-04-19 15:48:59 +0000288Tools
289-----
290
291- Added the Python benchmark suite pybench to the Tools/ directory;
292 contributed by Marc-Andre Lemburg.
Phillip J. Eby51dd7d92006-04-11 01:21:31 +0000293
Anthony Baxter51bcb682006-04-05 14:51:42 +0000294Documentation
295-------------
296
Tim Petersb06d28c2006-05-12 01:57:59 +0000297- Patch #1473132: Improve docs for ``tp_clear`` and ``tp_traverse``.
298
Nick Coghlanc195d8a2006-04-24 03:04:43 +0000299- PEP 343: Added Context Types section to the library reference
300 and attempted to bring other PEP 343 related documentation into
301 line with the implementation and/or python-dev discussions.
302
Tim Peters8dc73d22006-04-24 02:03:16 +0000303- Bug #1337990: clarified that ``doctest`` does not support examples
304 requiring both expected output and an exception.
Anthony Baxter51bcb682006-04-05 14:51:42 +0000305
306
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000307What's New in Python 2.5 alpha 1?
308=================================
309
Anthony Baxterebed3f62006-04-03 15:03:44 +0000310*Release date: 05-APR-2006*
Anthony Baxter12b6f6c2005-03-29 13:36:16 +0000311
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000312Core and builtins
313-----------------
314
Nick Coghlan43832302006-04-23 17:04:07 +0000315- PEP 338: -m command line switch now delegates to runpy.run_module
316 allowing it to support modules in packages and zipfiles
317
Martin v. Löwisc661b882006-04-20 04:54:23 +0000318- On Windows, .DLL is not an accepted file name extension for
319 extension modules anymore; extensions are only found if they
320 end in .PYD.
321
Martin v. Löwisea62d252006-04-03 10:56:49 +0000322- Bug #1421664: sys.stderr.encoding is now set to the same value as
323 sys.stdout.encoding.
324
Neal Norwitz92e212f2006-04-03 04:48:37 +0000325- __import__ accepts keyword arguments.
326
Georg Brandlccadf842006-03-31 18:54:53 +0000327- Patch #1460496: round() now accepts keyword arguments.
328
Anthony Baxter262c00a2006-03-30 10:53:17 +0000329- Fixed bug #1459029 - unicode reprs were double-escaped.
330
Hye-Shik Changd478f342006-03-23 12:32:36 +0000331- Patch #1396919: The system scope threads are reenabled on FreeBSD
332 5.4 and later versions.
333
Neal Norwitze98ccf62006-03-23 05:39:47 +0000334- Bug #1115379: Compiling a Unicode string with an encoding declaration
335 now gives a SyntaxError.
336
Georg Brandlabd1ff82006-03-18 07:59:59 +0000337- Previously, Python code had no easy way to access the contents of a
338 cell object. Now, a ``cell_contents`` attribute has been added
339 (closes patch #1170323).
340
Tim Peterscf79aac2006-03-16 01:14:46 +0000341- Patch #1123430: Python's small-object allocator now returns an arena to
342 the system ``free()`` when all memory within an arena becomes unused
343 again. Prior to Python 2.5, arenas (256KB chunks of memory) were never
344 freed. Some applications will see a drop in virtual memory size now,
345 especially long-running applications that, from time to time, temporarily
346 use a large number of small objects. Note that when Python returns an
347 arena to the platform C's ``free()``, there's no guarantee that the
Andrew M. Kuchling1da4a942006-04-22 02:32:43 +0000348 platform C library will in turn return that memory to the operating system.
349 The effect of the patch is to stop making that impossible, and in tests it
Tim Peterscf79aac2006-03-16 01:14:46 +0000350 appears to be effective at least on Microsoft C and gcc-based systems.
351 Thanks to Evan Jones for hard work and patience.
352
Georg Brandl533ff6f2006-03-08 18:09:27 +0000353- Patch #1434038: property() now uses the getter's docstring if there is
354 no "doc" argument given. This makes it possible to legitimately use
355 property() as a decorator to produce a read-only property.
356
Guido van Rossum9aa37ab2006-03-07 18:54:08 +0000357- PEP 357, patch 1436368: add an __index__ method to int/long and a matching
358 nb_index slot to the PyNumberMethods struct. The slot is consulted instead
359 of requiring an int or long in slicing and a few other contexts, enabling
360 other objects (e.g. Numeric Python's integers) to be used as slice indices.
361
Neal Norwitz995acdf2006-03-07 05:01:00 +0000362- Fixed various bugs reported by Coverity's Prevent tool.
363
Brett Cannonbf364092006-03-01 04:25:17 +0000364- PEP 352, patch #1104669: Make exceptions new-style objects. Introduced the
365 new exception base class, BaseException, which has a new message attribute.
366 KeyboardInterrupt and SystemExit to directly inherit from BaseException now.
367 Raising a string exception now raises a DeprecationWarning.
368
Thomas Woutersfb609f42006-02-28 16:37:25 +0000369- Patch #1438387, PEP 328: relative and absolute imports. Imports can now be
370 explicitly relative, using 'from .module import name' to mean 'from the same
371 package as this module is in. Imports without dots still default to the
372 old relative-then-absolute, unless 'from __future__ import
373 absolute_import' is used.
374
Brett Cannona7446e32006-02-27 23:39:10 +0000375- Properly check if 'warnings' raises an exception (usually when a filter set
376 to "error" is triggered) when raising a warning for raising string
377 exceptions.
378
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000379- CO_GENERATOR_ALLOWED is no longer defined. This behavior is the default.
Neal Norwitz0023a2f2006-02-27 23:24:48 +0000380 The name was removed from Include/code.h.
381
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000382- PEP 308: conditional expressions were added: (x if cond else y).
Neal Norwitzeb651252006-02-27 16:47:12 +0000383
Guido van Rossum1968ad32006-02-25 22:38:04 +0000384- Patch 1433928:
385 - The copy module now "copies" function objects (as atomic objects).
386 - dict.__getitem__ now looks for a __missing__ hook before raising
387 KeyError.
388
Tim Peters84ef21c2006-02-28 20:39:06 +0000389- PEP 343: with statement implemented. Needs ``from __future__ import
390 with_statement``. Use of 'with' as a variable will generate a warning.
391 Use of 'as' as a variable will also generate a warning (unless it's
Neal Norwitz055ec242006-02-28 20:06:49 +0000392 part of an import statement).
Guido van Rossum1a5e21e2006-02-28 21:57:43 +0000393 The following objects have __context__ methods:
394 - The built-in file type.
395 - The thread.LockType type.
396 - The following types defined by the threading module:
397 Lock, RLock, Condition, Semaphore, BoundedSemaphore.
398 - The decimal.Context class.
Guido van Rossumc2e20742006-02-27 22:32:47 +0000399
Marc-André Lemburgfe4b34c2006-02-19 15:22:22 +0000400- Fix the encodings package codec search function to only search
401 inside its own package. Fixes problem reported in patch #1433198.
402
403 Note: Codec packages should implement and register their own
404 codec search function. PEP 100 has the details.
405
Martin v. Löwis18e16552006-02-15 17:27:45 +0000406- PEP 353: Using ssize_t as the index type.
407
Neal Norwitzfc76d632006-01-10 06:03:13 +0000408- Patch #1400181, fix unicode string formatting to not use the locale.
409 This is how string objects work. u'%f' could use , instead of .
410 for the decimal point. Now both strings and unicode always use periods.
411
Neal Norwitz671b9e32006-01-09 07:07:12 +0000412- Bug #1244610, #1392915, fix build problem on OpenBSD 3.7 and 3.8.
413 configure would break checking curses.h.
414
Georg Brandlcd4d1e82005-12-27 17:37:07 +0000415- Bug #959576: The pwd module is now builtin. This allows Python to be
416 built on UNIX platforms without $HOME set.
417
Neal Norwitzc10978f2005-12-19 06:07:16 +0000418- Bug #1072182, fix some potential problems if characters are signed.
419
Neal Norwitz5d0ad502005-12-19 04:27:42 +0000420- Bug #889500, fix line number on SyntaxWarning for global declarations.
421
Neal Norwitzdb83eb32005-12-18 05:29:30 +0000422- Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter.
423
Neal Norwitze7214a12005-12-18 05:03:17 +0000424- Support for converting hex strings to floats no longer works.
425 This was not portable. float('0x3') now raises a ValueError.
426
Barry Warsaw2a38a862005-12-18 01:27:35 +0000427- Patch #1382163: Expose Subversion revision number to Python. New C API
Barry Warsawd3c38ff2006-03-07 09:46:03 +0000428 function Py_GetBuildNumber(). New attribute sys.subversion. Build number
Barry Warsaw2a38a862005-12-18 01:27:35 +0000429 is now displayed in interactive prompt banner.
430
Georg Brandlfa166682005-12-17 21:45:17 +0000431- Implementation of PEP 341 - Unification of try/except and try/finally.
432 "except" clauses can now be written together with a "finally" clause in
Neal Norwitz11ca77e2005-12-17 22:24:12 +0000433 one try statement instead of two nested ones. Patch #1355913.
Georg Brandlfa166682005-12-17 21:45:17 +0000434
Hye-Shik Chang835b2432005-12-17 04:38:31 +0000435- Bug #1379994: Builtin unicode_escape and raw_unicode_escape codec
436 now encodes backslash correctly.
437
Martin v. Löwisb45b3152005-11-28 17:34:23 +0000438- Patch #1350409: Work around signal handling bug in Visual Studio 2005.
439
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000440- Bug #1281408: Py_BuildValue now works correctly even with unsigned longs
Georg Brandlf06e30a2005-11-24 15:37:42 +0000441 and long longs.
442
Neal Norwitz67715f02005-11-09 06:59:35 +0000443- SF Bug #1350188, "setdlopenflags" leads to crash upon "import"
Tim Peters3a5e8b12006-04-11 01:44:07 +0000444 It was possible for dlerror() to return a NULL pointer, so
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000445 it will now use a default error message in this case.
Neal Norwitz67715f02005-11-09 06:59:35 +0000446
Marc-André Lemburga5bafc42005-10-23 13:43:40 +0000447- Replaced most Unicode charmap codecs with new ones using the
448 new Unicode translate string feature in the builtin charmap
449 codec; the codecs were created from the mapping tables available
450 at ftp.unicode.org and contain a few updates (e.g. the Mac OS
451 encodings now include a mapping for the Apple logo)
452
Tim Peterse3547fd2005-12-16 23:13:57 +0000453- Added a few more codecs for Mac OS encodings
Marc-André Lemburga5bafc42005-10-23 13:43:40 +0000454
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000455- Sped up some Unicode operations.
Neal Norwitzfed9b3e2005-10-21 06:32:02 +0000456
Martin v. Löwisbd260da2006-02-26 19:42:26 +0000457- A new AST parser implementation was completed. The abstract
458 syntax tree is available for read-only (non-compile) access
Martin v. Löwis577b5b92006-02-27 15:23:19 +0000459 to Python code; an _ast module was added.
Neal Norwitzfed9b3e2005-10-21 06:32:02 +0000460
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000461- SF bug #1167751: fix incorrect code being produced for generator expressions.
Neal Norwitz16af7342005-10-21 06:25:33 +0000462 The following code now raises a SyntaxError: foo(a = i for i in range(10))
463
Neal Norwitz708e51a2005-10-03 04:48:15 +0000464- SF Bug #976608: fix SystemError when mtime of an imported file is -1.
465
Neal Norwitz11bd1192005-10-03 00:54:56 +0000466- SF Bug #887946: fix segfault when redirecting stdin from a directory.
467 Provide a warning when a directory is passed on the command line.
468
Neal Norwitz40d37812005-10-02 01:48:49 +0000469- Fix segfault with invalid coding.
470
471- SF bug #772896: unknown encoding results in MemoryError.
472
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000473- All iterators now have a Boolean value of True. Formerly, some iterators
Raymond Hettinger6b27cda2005-09-24 21:23:05 +0000474 supported a __len__() method which evaluated to False when the iterator
475 was empty.
476
Guido van Rossum630db602005-09-20 18:49:54 +0000477- On 64-bit platforms, when __len__() returns a value that cannot be
478 represented as a C int, raise OverflowError.
479
Skip Montanarof8948ca2005-09-19 03:54:46 +0000480- test__locale is skipped on OS X < 10.4 (only partial locale support is
Walter Dörwald6611a8b2005-10-09 19:28:35 +0000481 present).
Skip Montanarof8948ca2005-09-19 03:54:46 +0000482
Georg Brandl80bbf3f2005-09-14 19:38:29 +0000483- SF bug #893549: parsing keyword arguments was broken with a few format
484 codes.
485
Guido van Rossum8ee3e5a2005-09-14 18:09:42 +0000486- Changes donated by Elemental Security to make it work on AIX 5.3
487 with IBM's 64-bit compiler (SF patch #1284289). This also closes SF
488 bug #105470: test_pwd fails on 64bit system (Opteron).
489
Guido van Rossum539c6622005-09-14 17:49:54 +0000490- Changes donated by Elemental Security to make it work on HP-UX 11 on
491 Itanium2 with HP's 64-bit compiler (SF patch #1225212).
492
Georg Brandl4550b8d2005-08-26 06:43:52 +0000493- Disallow keyword arguments for type constructors that don't use them
Georg Brandl02c42872005-08-26 06:42:30 +0000494 (fixes bug #1119418).
495
Martin v. Löwisd35edda2005-08-24 08:39:24 +0000496- Forward UnicodeDecodeError into SyntaxError for source encoding errors.
497
Barry Warsawe2eca0b2005-08-15 18:14:19 +0000498- SF bug #900092: When tracing (e.g. for hotshot), restore 'return' events for
499 exceptions that cause a function to exit.
500
Raymond Hettinger9f1a6792005-07-31 01:16:36 +0000501- The implementation of set() and frozenset() was revised to use its
502 own internal data structure. Memory consumption is reduced by 1/3
503 and there are modest speed-ups as well. The API is unchanged.
504
Tim Petersde7990b2005-07-17 23:45:23 +0000505- SF bug #1238681: freed pointer is used in longobject.c:long_pow().
506
Michael W. Hudson0edc7a02005-07-12 10:21:19 +0000507- SF bug #1229429: PyObject_CallMethod failed to decrement some
508 reference counts in some error exit cases.
509
Tim Petersecc6e6a2005-07-10 22:30:55 +0000510- SF bug #1185883: Python's small-object memory allocator took over
511 a block managed by the platform C library whenever a realloc specified
512 a small new size. However, there's no portable way to know then how
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000513 much of the address space following the pointer is valid, so there's no
Tim Petersecc6e6a2005-07-10 22:30:55 +0000514 portable way to copy data from the C-managed block into Python's
515 small-object space without risking a memory fault. Python's small-object
516 realloc now leaves such blocks under the control of the platform C
517 realloc.
518
Michael W. Hudsonb8963812005-07-05 15:21:58 +0000519- SF bug #1232517: An overflow error was not detected properly when
520 attempting to convert a large float to an int in os.utime().
521
Raymond Hettinger3296e692005-06-29 23:29:56 +0000522- SF bug #1224347: hex longs now print with lowercase letters just
523 like their int counterparts.
524
Michael W. Hudson188d4362005-06-20 16:52:57 +0000525- SF bug #1163563: the original fix for bug #1010677 ("thread Module
526 Breaks PyGILState_Ensure()") broke badly in the case of multiple
527 interpreter states; back out that fix and do a better job (see
528 http://mail.python.org/pipermail/python-dev/2005-June/054258.html
529 for a longer write-up of the problem).
530
Michael W. Hudsondf888462005-06-03 14:41:55 +0000531- SF patch #1180995: marshal now uses a binary format by default when
532 serializing floats.
533
Michael W. Hudsonda85a902005-06-01 11:34:22 +0000534- SF patch #1181301: on platforms that appear to use IEEE 754 floats,
535 the routines that promise to produce IEEE 754 binary representations
536 of floats now simply copy bytes around.
537
Skip Montanarobbf12ba2005-05-20 03:07:06 +0000538- bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP
539 278.
540
Brett Cannonc3647ac2005-04-26 03:45:26 +0000541- patch #1109424: int, long, float, complex, and unicode now check for the
542 proper magic slot for type conversions when subclassed. Previously the
543 magic slot was ignored during conversion. Semantics now match the way
544 subclasses of str always behaved. int/long/float, conversion of an instance
Walter Dörwald78a78b02005-09-01 12:04:29 +0000545 to the base class has been moved to the proper nb_* magic slot and out of
Brett Cannonc3647ac2005-04-26 03:45:26 +0000546 PyNumber_*().
Neal Norwitzcfba5f82006-04-25 05:05:03 +0000547 Thanks Walter D�rwald.
Brett Cannonc3647ac2005-04-26 03:45:26 +0000548
Barry Warsawc8d907c2005-04-19 23:43:40 +0000549- Descriptors defined in C with a PyGetSetDef structure, where the setter is
550 NULL, now raise an AttributeError when attempting to set or delete the
551 attribute. Previously a TypeError was raised, but this was inconsistent
552 with the equivalent pure-Python implementation.
553
Michael W. Hudson774479c2005-04-18 08:46:17 +0000554- It is now safe to call PyGILState_Release() before
555 PyEval_InitThreads() (note that if there is reason to believe there
556 are multiple threads around you still must call PyEval_InitThreads()
557 before using the Python API; this fix is for extension modules that
558 have no way of knowing if Python is multi-threaded yet).
559
Michael W. Hudsone3afc592005-04-07 10:11:19 +0000560- Typing Ctrl-C whilst raw_input() was waiting in a build with threads
561 disabled caused a crash.
562
Michael W. Hudsonb330adf2005-03-31 09:35:44 +0000563- Bug #1165306: instancemethod_new allowed the creation of a method
564 with im_class == im_self == NULL, which caused a crash when called.
565
Tim Petersecc6e6a2005-07-10 22:30:55 +0000566- Move exception finalisation later in the shutdown process - this
Anthony Baxter12b6f6c2005-03-29 13:36:16 +0000567 fixes the crash seen in bug #1165761
568
Raymond Hettinger96229b12005-03-11 06:49:40 +0000569- Added two new builtins, any() and all().
570
Brett Cannon409d8f22005-03-05 06:47:57 +0000571- Defining a class with empty parentheses is now allowed
Brett Cannonf4189912005-04-09 02:30:16 +0000572 (e.g., ``class C(): pass`` is no longer a syntax error).
573 Patch #1176012 added support to the 'parser' module and 'compiler' package
574 (thanks to logistix for that added support).
Brett Cannon409d8f22005-03-05 06:47:57 +0000575
Martin v. Löwis96d743e2005-03-03 23:00:26 +0000576- Patch #1115086: Support PY_LONGLONG in structmember.
577
Raymond Hettingerb67cc802005-03-03 16:45:19 +0000578- Bug #1155938: new style classes did not check that __init__() was
579 returning None.
580
Tim Petersecc6e6a2005-07-10 22:30:55 +0000581- Patch #802188: Report characters after line continuation character
Martin v. Löwis4bf108d2005-03-03 11:45:45 +0000582 ('\') with a specific error message.
583
Martin v. Löwisff232d72005-03-03 09:24:38 +0000584- Bug #723201: Raise a TypeError for passing bad objects to 'L' format.
585
Michael W. Hudson8e1afab2005-02-17 14:55:21 +0000586- Bug #1124295: the __name__ attribute of file objects was
587 inadvertently made inaccessible in restricted mode.
588
Tim Petersecc6e6a2005-07-10 22:30:55 +0000589- Bug #1074011: closing sys.std{out,err} now causes a flush() and
Martin v. Löwis8e3ca8a2005-01-23 09:41:49 +0000590 an ferror() call.
591
Raymond Hettinger3b0c7c22004-12-03 08:30:39 +0000592- min() and max() now support key= arguments with the same meaning as in
593 list.sort().
594
Raymond Hettingerc34f8672005-01-02 06:17:33 +0000595- The peephole optimizer now performs simple constant folding in expressions:
596 (2+3) --> (5).
597
Raymond Hettingera422c342005-01-11 03:03:27 +0000598- set and frozenset objects can now be marshalled. SF #1098985.
599
Michael W. Hudsonfaa76482005-01-31 17:09:25 +0000600- Bug #1077106: Poor argument checking could cause memory corruption
601 in calls to os.read().
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000602
Jeremy Hyltonab630502005-02-04 18:44:06 +0000603- The parser did not complain about future statements in illegal
604 positions. It once again reports a syntax error if a future
605 statement occurs after anything other than a doc string.
606
Neil Schemenauercf52c072005-08-12 17:34:58 +0000607- Change the %s format specifier for str objects so that it returns a
608 unicode instance if the argument is not an instance of basestring and
609 calling __str__ on the argument returns a unicode instance.
610
Tim Petersf4e69282006-02-27 17:15:31 +0000611- Patch #1413181: changed ``PyThreadState_Delete()`` to forget about the
612 current thread state when the auto-GIL-state machinery knows about
613 it (since the thread state is being deleted, continuing to remember it
614 can't help, but can hurt if another thread happens to get created with
615 the same thread id).
616
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000617Extension Modules
618-----------------
619
Georg Brandl43f08a82006-03-31 18:01:16 +0000620- Patch #1380952: fix SSL objects timing out on consecutive read()s
621
Neal Norwitz05a45592006-03-20 06:30:08 +0000622- Patch #1309579: wait3 and wait4 were added to the posix module.
623
Anthony Baxterfa869072006-03-20 05:21:58 +0000624- Patch #1231053: The audioop module now supports encoding/decoding of alaw.
625 In addition, the existing ulaw code was updated.
626
Georg Brandlbc45a3f2006-03-17 19:17:34 +0000627- RFE #567972: Socket objects' family, type and proto properties are
Georg Brandl72d7a782006-03-22 06:44:14 +0000628 now exposed via new attributes.
Georg Brandlbc45a3f2006-03-17 19:17:34 +0000629
Neal Norwitz10be10c2006-03-16 06:50:13 +0000630- Everything under lib-old was removed. This includes the following modules:
631 Para, addpack, cmp, cmpcache, codehack, dircmp, dump, find, fmt, grep,
Tim Petersc9d78aa2006-03-26 23:27:58 +0000632 lockfile, newdir, ni, packmail, poly, rand, statcache, tb, tzparse,
Neal Norwitz10be10c2006-03-16 06:50:13 +0000633 util, whatsound, whrandom, zmod
634
635- The following modules were removed: regsub, reconvert, regex, regex_syntax.
636
637- re and sre were swapped, so help(re) provides full help. importing sre
Neal Norwitzefbeaef2006-03-16 06:40:39 +0000638 is deprecated. The undocumented re.engine variable no longer exists.
639
Hye-Shik Changabb903f2006-03-13 10:20:08 +0000640- Bug #1448490: Fixed a bug that ISO-2022 codecs could not handle
641 SS2 (single-shift 2) escape sequences correctly.
642
Martin v. Löwis480f1bb2006-03-09 23:38:20 +0000643- The unicodedata module was updated to the 4.1 version of the Unicode
644 database. The 3.2 version is still available as unicodedata.db_3_2_0
645 for applications that require this specific version (such as IDNA).
646
Neal Norwitzb62c4332006-03-04 18:35:47 +0000647- The timing module is no longer built by default. It was deprecated
648 in PEP 4 in Python 2.0 or earlier.
649
Guido van Rossum1968ad32006-02-25 22:38:04 +0000650- Patch 1433928: Added a new type, defaultdict, to the collections module.
651 This uses the new __missing__ hook behavior added to dict (see above).
652
Georg Brandldbd83392006-02-20 09:42:33 +0000653- Bug #854823: socketmodule now builds on Sun platforms even when
654 INET_ADDRSTRLEN is not defined.
655
Georg Brandlf4f44152006-02-18 22:29:33 +0000656- Patch #1393157: os.startfile() now has an optional argument to specify
657 a "command verb" to invoke on the file.
658
Neal Norwitz082b2df2006-02-07 07:04:46 +0000659- Bug #876637, prevent stack corruption when socket descriptor
660 is larger than FD_SETSIZE.
661
Neal Norwitz0e6bc8c2006-02-05 05:45:43 +0000662- Patch #1407135, bug #1424041: harmonize mmap behavior of anonymous memory.
663 mmap.mmap(-1, size) now returns anonymous memory in both Unix and Windows.
664 mmap.mmap(0, size) should not be used on Windows for anonymous memory.
665
Martin v. Löwis57a34e82006-02-04 19:12:37 +0000666- Patch #1422385: The nis module now supports access to domains other
667 than the system default domain.
668
Martin v. Löwis14694662006-02-03 12:54:16 +0000669- Use Win32 API to implement os.stat/fstat. As a result, subsecond timestamps
670 are reported, the limit on path name lengths is removed, and stat reports
671 WindowsError now (instead of OSError).
672
Gregory P. Smithcfc4a8d2006-01-29 19:46:23 +0000673- Add bsddb.db.DBEnv.set_tx_timestamp allowing time based database recovery.
674
Neal Norwitz62a21122006-01-25 05:21:55 +0000675- Bug #1413192, fix seg fault in bsddb if a transaction was deleted
676 before the env.
677
Martin v. Löwis11017b12006-01-14 18:12:57 +0000678- Patch #1103116: Basic AF_NETLINK support.
679
Neal Norwitz3b4fff82006-01-11 08:54:45 +0000680- Bug #1402308, (possible) segfault when using mmap.mmap(-1, ...)
681
Neal Norwitz88bbd732006-01-10 07:05:44 +0000682- Bug #1400822, _curses over{lay,write} doesn't work when passing 6 ints.
683 Also fix ungetmouse() which did not accept arguments properly.
684 The code now conforms to the documented signature.
685
Neal Norwitz5e3d8622006-01-09 06:24:35 +0000686- Bug #1400115, Fix segfault when calling curses.panel.userptr()
687 without prior setting of the userptr.
688
Neal Norwitz40c6b472006-01-05 05:43:35 +0000689- Fix 64-bit problems in bsddb.
690
Neal Norwitz8856fb72005-12-18 03:34:22 +0000691- Patch #1365916: fix some unsafe 64-bit mmap methods.
692
Hye-Shik Changc5c57e62005-12-12 11:48:32 +0000693- Bug #1290333: Added a workaround for cjkcodecs' _codecs_cn build
694 problem on AIX.
695
Georg Brandla13c2442005-11-22 19:30:31 +0000696- Bug #869197: os.setgroups rejects long integer arguments
697
Neal Norwitz0f46bbf2005-11-03 05:00:25 +0000698- Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint
699
Neal Norwitz7b631792005-11-02 05:26:07 +0000700- Bug #1344508, Fix UNIX mmap leaking file descriptors
701
Neal Norwitzf3396542005-10-28 05:52:22 +0000702- Patch #1338314, Bug #1336623: fix tarfile so it can extract
703 REGTYPE directories from tarfiles written by old programs.
704
Gregory P. Smithe101df92006-01-24 20:09:45 +0000705- Patch #1407992, fixes broken bsddb module db associate when using
706 BerkeleyDB 3.3, 4.0 or 4.1.
707
708- Get bsddb module to build with BerkeleyDB version 4.4
709
710- Get bsddb module to build with BerkeleyDB version 3.2
Neal Norwitzfed9b3e2005-10-21 06:32:02 +0000711
Neal Norwitz484d9a42005-09-30 04:46:49 +0000712- Patch #1309009, Fix segfault in pyexpat when the XML document is in latin_1,
713 but Python incorrectly assumes it is in UTF-8 format
714
Georg Brandle677adc2005-09-29 13:40:49 +0000715- Fix parse errors in the readline module when compiling without threads.
716
Hye-Shik Chang9ceebd52005-09-24 14:58:47 +0000717- Patch #1288833: Removed thread lock from socket.getaddrinfo on
718 FreeBSD 5.3 and later versions which got thread-safe getaddrinfo(3).
719
Michael W. Hudson10402a32005-09-22 09:19:01 +0000720- Patches #1298449 and #1298499: Add some missing checks for error
721 returns in cStringIO.c.
722
Neal Norwitz058bde12005-09-21 06:44:25 +0000723- Patch #1297028: fix segfault if call type on MultibyteCodec,
724 MultibyteStreamReader, or MultibyteStreamWriter
725
Neal Norwitzcfe7dd92005-09-19 06:49:27 +0000726- Fix memory leak in posix.access().
727
Martin v. Löwis8b291e22005-09-18 08:17:56 +0000728- Patch #1213831: Fix typo in unicodedata._getcode.
729
Georg Brandlfb1ef852005-09-14 20:53:32 +0000730- Bug #1007046: os.startfile() did not accept unicode strings encoded in
731 the file system encoding.
732
Georg Brandld2e3ba72005-08-26 08:34:00 +0000733- Patch #756021: Special-case socket.inet_aton('255.255.255.255') for
734 platforms that don't have inet_aton().
Georg Brandl02760f92005-08-25 13:10:41 +0000735
Georg Brandld2e3ba72005-08-26 08:34:00 +0000736- Bug #1215928: Fix bz2.BZ2File.seek() for 64-bit file offsets.
737
738- Bug #1191043: Fix bz2.BZ2File.(x)readlines for files containing one
Georg Brandl02760f92005-08-25 13:10:41 +0000739 line without newlines.
740
Georg Brandl38387b82005-08-24 07:17:40 +0000741- Bug #728515: mmap.resize() now resizes the file on Unix as it did
742 on Windows.
743
Walter Dörwalda05834e2005-10-09 19:38:21 +0000744- Patch #1180695: Add nanosecond stat resolution, and st_gen,
Martin v. Löwisebd9d5b2005-08-09 15:00:59 +0000745 st_birthtime for FreeBSD.
746
Michael W. Hudson8137bea2005-07-27 20:24:40 +0000747- Patch #1231069: The fcntl.ioctl function now uses the 'I' code for
748 the request code argument, which results in more C-like behaviour
749 for large or negative values.
750
Tim Petersecc6e6a2005-07-10 22:30:55 +0000751- Bug #1234979: For the argument of thread.Lock.acquire, the Windows
Andrew M. Kuchling88b85822005-08-23 00:57:07 +0000752 implementation treated all integer values except 1 as false.
Georg Brandlaf410b52005-07-08 22:26:13 +0000753
Georg Brandl6b95f1d2005-06-03 19:47:00 +0000754- Bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.
755
Hye-Shik Chang5f937a72005-06-02 13:09:30 +0000756- Patch #1212117: os.stat().st_flags is now accessible as a attribute
757 if available on the platform.
758
Skip Montanaro5ff14922005-05-16 02:42:22 +0000759- Patch #1103951: Expose O_SHLOCK and O_EXLOCK in the posix module if
760 available on the platform.
761
Michael W. Hudsonb330adf2005-03-31 09:35:44 +0000762- Bug #1166660: The readline module could segfault if hook functions
763 were set in a different thread than that which called readline.
764
Raymond Hettinger4aec61e2005-03-18 21:20:23 +0000765- collections.deque objects now support a remove() method.
766
Raymond Hettinger984f9bb2005-03-09 16:38:48 +0000767- operator.itemgetter() and operator.attrgetter() now support retrieving
768 multiple fields. This provides direct support for sorting on multiple
769 keys (primary, secondary, etc).
770
Martin v. Löwisb60ae992005-03-08 09:10:29 +0000771- os.access now supports Unicode path names on non-Win32 systems.
772
Martin v. Löwisfd78a6f2005-03-04 14:37:01 +0000773- Patches #925152, #1118602: Avoid reading after the end of the buffer
774 in pyexpat.GetInputContext.
775
Tim Petersecc6e6a2005-07-10 22:30:55 +0000776- Patches #749830, #1144555: allow UNIX mmap size to default to current
Martin v. Löwis7fe60c02005-03-03 11:22:44 +0000777 file size.
778
Raymond Hettinger9c323f82005-02-28 19:39:44 +0000779- Added functional.partial(). See PEP309.
780
Martin v. Löwis9533e342005-02-27 20:33:25 +0000781- Patch #1093585: raise a ValueError for negative history items in readline.
782 {remove_history,replace_history}
783
Fred Drake9c131f22005-01-23 15:16:08 +0000784- The spwd module has been added, allowing access to the shadow password
785 database.
Martin v. Löwisc3001752005-01-23 09:27:24 +0000786
Martin v. Löwisfe33d0b2005-01-16 08:57:39 +0000787- stat_float_times is now True.
788
Raymond Hettingerb0900e62004-12-16 16:23:40 +0000789- array.array objects are now picklable.
790
Raymond Hettingera6b45cc2004-12-07 07:05:57 +0000791- the cPickle module no longer accepts the deprecated None option in the
792 args tuple returned by __reduce__().
793
Raymond Hettingerb2594052004-12-05 09:25:51 +0000794- itertools.islice() now accepts None for the start and step arguments.
795 This allows islice() to work more readily with slices:
796 islice(s.start, s.stop, s.step)
797
Skip Montanaro0af3ade2005-01-13 04:12:31 +0000798- datetime.datetime() now has a strptime class method which can be used to
799 create datetime object using a string and format.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000800
Matthias Klosed77f8b32006-04-03 16:34:56 +0000801- Patch #1117961: Replace the MD5 implementation from RSA Data Security Inc
Matthias Klose8e39ec72006-04-03 16:27:50 +0000802 with the implementation from http://sourceforge.net/projects/libmd5-rfc/.
803
Raymond Hettinger4901a1f2004-12-02 08:59:14 +0000804Library
805-------
806
Nick Coghlan43832302006-04-23 17:04:07 +0000807- PEP 338: new module runpy defines a run_module function to support
808 executing modules which provide access to source code or a code object
809 via the PEP 302 import mechanisms.
810
Anthony Baxter93f5b932006-04-03 08:05:07 +0000811- The email module's parsedate_tz function now sets the daylight savings
812 flag to -1 (unknown) since it can't tell from the date whether it should
813 be set.
814
Fred Drakead5177c2006-04-01 22:14:43 +0000815- Patch #624325: urlparse.urlparse() and urlparse.urlsplit() results
816 now sport attributes that provide access to the parts of the result.
817
Georg Brandl7f6b67c2006-04-01 08:35:18 +0000818- Patch #1462498: sgmllib now handles entity and character references
819 in attribute values.
820
Anthony Baxterc51ee692006-04-01 00:57:31 +0000821- Added the sqlite3 package. This is based on pysqlite2.1.3, and provides
Georg Brandl828fdef2006-04-01 08:59:03 +0000822 a DB-API interface in the standard library. You'll need sqlite 3.0.8 or
Tim Peters3a5e8b12006-04-11 01:44:07 +0000823 later to build this - if you have an earlier version, the C extension
Anthony Baxterc51ee692006-04-01 00:57:31 +0000824 module will not be built.
825
Tim Petersc17976e2006-04-01 00:26:53 +0000826- Bug #1460340: ``random.sample(dict)`` failed in various ways. Dicts
827 aren't officially supported here, and trying to use them will probably
828 raise an exception some day. But dicts have been allowed, and "mostly
829 worked", so support for them won't go away without warning.
830
Georg Brandl338ef7d2006-03-31 18:42:16 +0000831- Bug #1445068: getpass.getpass() can now be given an explicit stream
832 argument to specify where to write the prompt.
833
Georg Brandl22ec80b2006-03-31 18:25:44 +0000834- Patch #1462313, bug #1443328: the pickle modules now can handle classes
835 that have __private names in their __slots__.
836
Neal Norwitz6974a512006-04-10 00:25:01 +0000837- Bug #1250170: mimetools now handles socket.gethostname() failures gracefully.
Georg Brandldd2245f2006-03-31 17:18:06 +0000838
Phillip J. Eby59821cf2006-03-30 02:16:40 +0000839- patch #1457316: "setup.py upload" now supports --identity to select the
840 key to be used for signing the uploaded code.
841
Raymond Hettingerfd3fcf02006-03-24 20:43:29 +0000842- Queue.Queue objects now support .task_done() and .join() methods
843 to make it easier to monitor when daemon threads have completed
844 processing all enqueued tasks. Patch #1455676.
845
Martin v. Löwisbd8dbab2006-03-23 18:18:35 +0000846- popen2.Popen objects now preserve the command in a .cmd attribute.
847
Thomas Hellerc61c0492006-03-22 10:09:27 +0000848- Added the ctypes ffi package.
849
Barry Warsaw4d90bbd2006-03-22 02:45:50 +0000850- email 4.0 package now integrated. This is largely the same as the email 3.0
851 package that was included in Python 2.3, except that PEP 8 module names are
852 now used (e.g. mail.message instead of email.Message). The MIME classes
853 have been moved to a subpackage (e.g. email.mime.text instead of
854 email.MIMEText). The old names are still supported for now. Several
855 deprecated Message methods have been removed and lots of bugs have been
856 fixed. More details can be found in the email package documentation.
857
Walter Dörwald40108c92006-03-27 08:15:44 +0000858- Patches #1436130/#1443155: codecs.lookup() now returns a CodecInfo object
859 (a subclass of tuple) that provides incremental decoders and encoders
860 (a way to use stateful codecs without the stream API). Python functions
861 codecs.getincrementaldecoder() and codecs.getincrementalencoder() as well
862 as C functions PyCodec_IncrementalEncoder() and PyCodec_IncrementalDecoder()
863 have been added.
Walter Dörwaldabb02e52006-03-15 11:35:15 +0000864
Walter Dörwald067db482006-03-15 22:17:27 +0000865- Patch #1359365: Calling next() on a closed StringIO.String object raises
866 a ValueError instead of a StopIteration now (like file and cString.String do).
867 cStringIO.StringIO.isatty() will raise a ValueError now if close() has been
868 called before (like file and StringIO.StringIO do).
Walter Dörwald197e8322006-03-15 22:13:13 +0000869
Martin v. Löwis04824ce2006-03-10 21:26:16 +0000870- A regrtest option -w was added to re-run failed tests in verbose mode.
871
Georg Brandle2b46772006-03-09 23:22:43 +0000872- Patch #1446372: quit and exit can now be called from the interactive
873 interpreter to exit.
874
Barry Warsawd3c38ff2006-03-07 09:46:03 +0000875- The function get_count() has been added to the gc module, and gc.collect()
876 grew an optional 'generation' argument.
877
Martin v. Löwisfbab90e2006-03-05 13:36:04 +0000878- A library msilib to generate Windows Installer files, and a distutils
879 command bdist_msi have been added.
880
Guido van Rossum1a5e21e2006-02-28 21:57:43 +0000881- PEP 343: new module contextlib.py defines decorator @contextmanager
882 and helpful context managers nested() and closing().
883
Martin v. Löwis415ed932006-02-27 19:56:30 +0000884- The compiler package now supports future imports after the module docstring.
885
Georg Brandl8f7c54e2006-02-20 08:40:38 +0000886- Bug #1413790: zipfile now sanitizes absolute archive names that are
887 not allowed by the specs.
888
Georg Brandlc98eeed2006-02-19 14:57:47 +0000889- Patch #1215184: FileInput now can be given an opening hook which can
890 be used to control how files are opened.
891
Georg Brandlc029f872006-02-19 14:12:34 +0000892- Patch #1212287: fileinput.input() now has a mode parameter for
893 specifying the file mode input files should be opened with.
894
Georg Brandl67e9fb92006-02-19 13:56:17 +0000895- Patch #1215184: fileinput now has a fileno() function for getting the
896 current file number.
897
Georg Brandl602b9ba2006-02-19 13:26:36 +0000898- Patch #1349274: gettext.install() now optionally installs additional
899 translation functions other than _() in the builtin namespace.
900
Georg Brandle4662172006-02-19 09:51:27 +0000901- Patch #1337756: fileinput now accepts Unicode filenames.
902
Georg Brandl7b4e7c22006-02-18 21:10:56 +0000903- Patch #1373643: The chunk module can now read chunks larger than
904 two gigabytes.
905
Georg Brandl21dd1af2006-02-17 13:35:13 +0000906- Patch #1417555: SimpleHTTPServer now returns Last-Modified headers.
907
Georg Brandlbd3bc4d2006-02-17 09:52:53 +0000908- Bug #1430298: It is now possible to send a mail with an empty
909 return address using smtplib.
910
Georg Brandl0e1abe22006-02-17 09:48:14 +0000911- Bug #1432260: The names of lambda functions are now properly displayed
912 in pydoc.
Georg Brandl501dd0d2006-02-17 09:45:40 +0000913
Martin v. Löwis00756902006-02-05 17:09:41 +0000914- Patch #1412872: zipfile now sets the creator system to 3 (Unix)
915 unless the system is Win32.
916
Tim Petersda1329b2006-02-27 16:50:01 +0000917- Patch #1349118: urllib now supports user:pass@ style proxy
Martin v. Löwis3e865952006-01-24 15:51:21 +0000918 specifications, raises IOErrors when proxies for unsupported protocols
919 are defined, and uses the https proxy on https redirections.
920
Georg Brandl531ceba2006-01-21 07:20:56 +0000921- Bug #902075: urllib2 now supports 'host:port' style proxy specifications.
922
923- Bug #1407902: Add support for sftp:// URIs to urlparse.
Georg Brandl89f35ac2006-01-20 17:24:23 +0000924
Georg Brandlb709c2c2006-01-20 09:07:35 +0000925- Bug #1371247: Update Windows locale identifiers in locale.py.
926
Neal Norwitzf60cd472006-01-14 07:05:13 +0000927- Bug #1394565: SimpleHTTPServer now doesn't choke on query parameters
Georg Brandl45ab2332006-01-13 17:05:56 +0000928 any more.
Georg Brandlb709c2c2006-01-20 09:07:35 +0000929
Georg Brandl4edd9892006-01-13 16:59:46 +0000930- Bug #1403410: The warnings module now doesn't get confused
931 when it can't find out the module name it generates a warning for.
Georg Brandlb709c2c2006-01-20 09:07:35 +0000932
Martin v. Löwis412ed3b2006-01-08 10:45:39 +0000933- Patch #1177307: Added a new codec utf_8_sig for UTF-8 with a BOM signature.
934
Neal Norwitzab86f8e2005-12-23 21:44:36 +0000935- Patch #1157027: cookielib mishandles RFC 2109 cookies in Netscape mode
936
Neal Norwitz338e7862005-12-23 21:27:46 +0000937- Patch #1117398: cookielib.LWPCookieJar and .MozillaCookieJar now raise
938 LoadError as documented, instead of IOError. For compatibility,
939 LoadError subclasses IOError.
940
Brett Cannon3cbd0382005-12-16 22:49:23 +0000941- Added the hashlib module. It provides secure hash functions for MD5 and
Tim Peterse3547fd2005-12-16 23:13:57 +0000942 SHA1, 224, 256, 384, and 512. Note that recent developments make the
943 historic MD5 and SHA1 unsuitable for cryptographic-strength applications.
944 In <http://mail.python.org/pipermail/python-dev/2005-December/058850.html>
945 Ronald L. Rivest offered this advice for Python:
946
947 "The consensus of researchers in this area (at least as
948 expressed at the NIST Hash Function Workshop 10/31/05),
949 is that SHA-256 is a good choice for the time being, but
950 that research should continue, and other alternatives may
951 arise from this research. The larger SHA's also seem OK."
Brett Cannon3cbd0382005-12-16 22:49:23 +0000952
Fredrik Lundh7e0aef02005-12-12 18:54:55 +0000953- Added a subset of Fredrik Lundh's ElementTree package. Available
954 modules are xml.etree.ElementTree, xml.etree.ElementPath, and
955 xml.etree.ElementInclude, from ElementTree 1.2.6.
956
Martin v. Löwis307021f2005-11-27 16:59:04 +0000957- Patch #1162825: Support non-ASCII characters in IDLE window titles.
958
Georg Brandl1f663572005-11-26 16:50:44 +0000959- Bug #1365984: urllib now opens "data:" URLs again.
960
Brett Cannonad07ff22005-11-23 02:15:50 +0000961- Patch #1314396: prevent deadlock for threading.Thread.join() when an exception
962 is raised within the method itself on a previous call (e.g., passing in an
963 illegal argument)
964
Brett Cannon5d0bf942005-11-02 23:04:26 +0000965- Bug #1340337: change time.strptime() to always return ValueError when there
966 is an error in the format string.
967
Georg Brandle8f24432005-10-03 14:16:44 +0000968- Patch #754022: Greatly enhanced webbrowser.py (by Oleg Broytmann).
969
Walter Dörwalda05834e2005-10-09 19:38:21 +0000970- Bug #729103: pydoc.py: Fix docother() method to accept additional
Georg Brandl8b813db2005-10-01 16:32:31 +0000971 "parent" argument.
972
Georg Brandlaa935172005-09-29 20:49:16 +0000973- Patch #1300515: xdrlib.py: Fix pack_fstring() to really use null bytes
974 for padding.
975
Georg Brandl80ba8e82005-09-29 20:16:07 +0000976- Bug #1296004: httplib.py: Limit maximal amount of data read from the
977 socket to avoid a MemoryError on Windows.
978
Matthias Klosef3f231f2005-09-20 07:02:49 +0000979- Patch #1166948: locale.py: Prefer LC_ALL, LC_CTYPE and LANG over LANGUAGE
980 to get the correct encoding.
981
982- Patch #1166938: locale.py: Parse LANGUAGE as a colon separated list of
983 languages.
984
Martin v. Löwis4ed67382005-09-18 08:34:39 +0000985- Patch #1268314: Cache lines in StreamReader.readlines for performance.
986
Brett Cannona783d062005-09-15 02:34:56 +0000987- Bug #1290505: Fix clearing the regex cache for time.strptime().
988
Martin v. Löwis5dbdc592005-08-27 10:07:56 +0000989- Bug #1167128: Fix size of a symlink in a tarfile to be 0.
990
Georg Brandl5a650a22005-08-26 08:51:34 +0000991- Patch #810023: Fix off-by-one bug in urllib.urlretrieve reporthook
992 functionality.
993
Martin v. Löwis8b595142005-08-25 11:03:38 +0000994- Bug #1163178: Make IDNA return an empty string when the input is empty.
995
Georg Brandl532efab2005-08-24 22:34:21 +0000996- Patch #848017: Make Cookie more RFC-compliant. Use CRLF as default output
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +0000997 separator and do not output trailing semicolon.
Georg Brandl532efab2005-08-24 22:34:21 +0000998
Georg Brandlb9256022005-08-24 18:46:39 +0000999- Patch #1062060: urllib.urlretrieve() now raises a new exception, named
1000 ContentTooShortException, when the actually downloaded size does not
1001 match the Content-Length header.
1002
Martin v. Löwis0a5d4a22005-08-24 14:55:22 +00001003- Bug #1121494: distutils.dir_utils.mkpath now accepts Unicode strings.
1004
Martin v. Löwis56066d22005-08-24 07:38:12 +00001005- Bug #1178484: Return complete lines from codec stream readers
1006 even if there is an exception in later lines, resulting in
Walter Dörwalda05834e2005-10-09 19:38:21 +00001007 correct line numbers for decoding errors in source code.
Martin v. Löwis56066d22005-08-24 07:38:12 +00001008
Georg Brandl6d2b3462005-08-24 07:36:17 +00001009- Bug #1192315: Disallow negative arguments to clear() in pdb.
1010
Martin v. Löwisb813c532005-08-07 20:51:04 +00001011- Patch #827386: Support absolute source paths in msvccompiler.py.
1012
Georg Brandl649f8e72005-08-03 07:30:12 +00001013- Patch #1105730: Apply the new implementation of commonprefix in posixpath
1014 to ntpath, macpath, os2emxpath and riscospath.
1015
Guido van Rossum755149f2005-07-27 00:00:44 +00001016- Fix a problem in Tkinter introduced by SF patch #869468: delete bogus
1017 __hasattr__ and __delattr__ methods on class Tk that were breaking
1018 Tkdnd.
1019
Georg Brandl5dbda752005-07-17 20:27:41 +00001020- Bug #1015140: disambiguated the term "article id" in nntplib docs and
1021 docstrings to either "article number" or "message id".
1022
Georg Brandla4a8b822005-07-15 09:13:21 +00001023- Bug #1238170: threading.Thread.__init__ no longer has "kwargs={}" as a
1024 parameter, but uses the usual "kwargs=None".
1025
Andrew M. Kuchling88b85822005-08-23 00:57:07 +00001026- textwrap now processes text chunks at O(n) speed instead of O(n**2).
Raymond Hettinger8bfa8932005-07-15 06:53:35 +00001027 Patch #1209527 (Contributed by Connelly).
1028
Georg Brandl5c5fe2f2005-07-14 06:40:47 +00001029- urllib2 has now an attribute 'httpresponses' mapping from HTTP status code
1030 to W3C name (404 -> 'Not Found'). RFE #1216944.
1031
Georg Brandl9e43acf2005-07-04 17:16:07 +00001032- Bug #1177468: Don't cache the /dev/urandom file descriptor for os.urandom,
1033 as this can cause problems with apps closing all file descriptors.
1034
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +00001035- Bug #839151: Fix an attempt to access sys.argv in the warnings module;
Andrew M. Kuchling88b85822005-08-23 00:57:07 +00001036 it can be missing in embedded interpreters
Georg Brandl5284b532005-06-26 22:54:58 +00001037
Georg Brandl2f210b62005-06-26 22:09:06 +00001038- Bug #1155638: Fix a bug which affected HTTP 0.9 responses in httplib.
1039
Georg Brandlfbff1bc2005-06-26 21:36:25 +00001040- Bug #1100201: Cross-site scripting was possible on BaseHTTPServer via
1041 error messages.
1042
Georg Brandl379f99d2005-06-26 21:09:38 +00001043- Bug #1108948: Cookie.py produced invalid JavaScript code.
1044
Raymond Hettingerda99d1c2005-06-21 07:43:58 +00001045- The tokenize module now detects and reports indentation errors.
1046 Bug #1224621.
1047
Raymond Hettinger68c04532005-06-10 11:05:19 +00001048- The tokenize module has a new untokenize() function to support a full
Andrew M. Kuchling7034f6b2006-04-01 10:50:08 +00001049 roundtrip from lexed tokens back to Python source code. In addition,
Raymond Hettinger68c04532005-06-10 11:05:19 +00001050 the generate_tokens() function now accepts a callable argument that
1051 terminates by raising StopIteration.
1052
Georg Brandl9166e1a2005-06-04 09:20:03 +00001053- Bug #1196315: fix weakref.WeakValueDictionary constructor.
1054
Georg Brandl268e61c2005-06-03 14:28:50 +00001055- Bug #1213894: os.path.realpath didn't resolve symlinks that were the first
1056 component of the path.
1057
Skip Montanaro174dd222005-05-14 20:54:16 +00001058- Patch #1120353: The xmlrpclib module provides better, more transparent,
1059 support for datetime.{datetime,date,time} objects. With use_datetime set
1060 to True, applications shouldn't have to fiddle with the DateTime wrapper
1061 class at all.
1062
Martin v. Löwis55f1bb82005-03-21 20:56:35 +00001063- distutils.commands.upload was added to support uploading distribution
1064 files to PyPI.
1065
Walter Dörwalda6e8a4a2005-03-31 13:57:38 +00001066- distutils.commands.register now encodes the data as UTF-8 before posting
1067 them to PyPI.
1068
Raymond Hettinger267b8682005-03-27 10:47:39 +00001069- decimal operator and comparison methods now return NotImplemented
1070 instead of raising a TypeError when interacting with other types. This
1071 allows other classes to implement __radd__ style methods and have them
1072 work as expected.
1073
Raymond Hettingerbea3f6f2005-03-15 04:59:17 +00001074- Bug #1163325: Decimal infinities failed to hash. Attempting to
1075 hash a NaN raised an InvalidOperation instead of a TypeError.
1076
Tim Petersecc6e6a2005-07-10 22:30:55 +00001077- Patch #918101: Add tarfile open mode r|* for auto-detection of the
Martin v. Löwis78be7df2005-03-05 12:47:42 +00001078 stream compression; add, for symmetry reasons, r:* as a synonym of r.
1079
Martin v. Löwis00a73e72005-03-04 19:40:34 +00001080- Patch #1043890: Add extractall method to tarfile.
1081
Martin v. Löwisc72dd382005-03-04 13:50:17 +00001082- Patch #1075887: Don't require MSVC in distutils if there is nothing
1083 to build.
1084
Martin v. Löwis637431b2005-03-03 23:12:42 +00001085- Patch #1103407: Properly deal with tarfile iterators when untarring
1086 symbolic links on Windows.
1087
Tim Petersecc6e6a2005-07-10 22:30:55 +00001088- Patch #645894: Use getrusage for computing the time consumption in
Martin v. Löwisa4dac402005-03-03 11:39:45 +00001089 profile.py if available.
1090
Martin v. Löwisdf37c8c2005-03-03 11:08:03 +00001091- Patch #1046831: Use get_python_version where appropriate in sysconfig.py.
1092
Martin v. Löwisc5574e82005-03-03 10:57:37 +00001093- Patch #1117454: Remove code to special-case cookies without values
1094 in LWPCookieJar.
1095
Martin v. Löwis4ea3ead2005-03-03 10:48:12 +00001096- Patch #1117339: Add cookielib special name tests.
1097
Martin v. Löwise869eb12005-03-03 09:46:07 +00001098- Patch #1112812: Make bsddb/__init__.py more friendly for modulefinder.
1099
Martin v. Löwisf2a8d632005-03-03 08:35:22 +00001100- Patch #1110248: SYNC_FLUSH the zlib buffer for GZipFile.flush.
1101
Martin v. Löwisdf241532005-03-03 08:17:42 +00001102- Patch #1107973: Allow to iterate over the lines of a tarfile.ExFileObject.
1103
Martin v. Löwis8ed338a2005-03-03 08:12:27 +00001104- Patch #1104111: Alter setup.py --help and --help-commands.
1105
Martin v. Löwis4afe1542005-03-01 08:09:28 +00001106- Patch #1121234: Properly cleanup _exit and tkerror commands.
1107
Martin v. Löwisc2a0ac22005-02-24 20:22:10 +00001108- Patch #1049151: xdrlib now unpacks booleans as True or False.
1109
Raymond Hettingerbab41432005-02-05 01:31:19 +00001110- Fixed bug in a NameError bug in cookielib. Patch #1116583.
1111
Guido van Rossumd0641422005-02-03 15:01:24 +00001112- Applied a security fix to SimpleXMLRPCserver (PSF-2005-001). This
1113 disables recursive traversal through instance attributes, which can
1114 be exploited in various ways.
1115
Tim Peterse3547fd2005-12-16 23:13:57 +00001116- Bug #1222790: in SimpleXMLRPCServer, set the reuse-address and close-on-exec
Andrew M. Kuchling3a976052005-12-04 15:07:41 +00001117 flags on the HTTP listening socket.
1118
Andrew M. Kuchlinge63fde72005-12-04 15:36:57 +00001119- Bug #792570: SimpleXMLRPCServer had problems if the request grew too large.
1120 Fixed by reading the HTTP body in chunks instead of one big socket.read().
1121
Tim Peterse3547fd2005-12-16 23:13:57 +00001122- Patches #893642, #1039083: add allow_none, encoding arguments to constructors of
Andrew M. Kuchling10a16de2005-12-04 16:34:40 +00001123 SimpleXMLRPCServer and CGIXMLRPCRequestHandler.
1124
Martin v. Löwis1d11de62005-01-29 13:29:23 +00001125- Bug #1110478: Revert os.environ.update to do putenv again.
1126
Thomas Hellerd6c6e222005-01-20 19:20:16 +00001127- Bug #1103844: fix distutils.install.dump_dirs() with negated options.
1128
Martin v. Löwis22b457e2005-01-16 08:40:58 +00001129- os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience.
1130
Andrew McNamaraa08eecb2005-01-12 03:25:27 +00001131- Enhancements to the csv module:
1132
1133 + Dialects are now validated by the underlying C code, better
Georg Brandl7eb4b7d2005-07-22 21:49:32 +00001134 reflecting its capabilities, and improving its compliance with
Tim Petersecc6e6a2005-07-10 22:30:55 +00001135 PEP 305.
Andrew McNamaraa08eecb2005-01-12 03:25:27 +00001136 + Dialect parameter parsing has been re-implemented to improve error
1137 reporting.
1138 + quotechar=None and quoting=QUOTE_NONE now work the way PEP 305
1139 dictates.
1140 + the parser now removes the escapechar prefix from escaped characters.
Andrew McNamara0f0599d2005-01-12 09:45:18 +00001141 + when quoting=QUOTE_NONNUMERIC, the writer now tests for numeric
Andrew M. Kuchling6db67822006-04-18 14:04:57 +00001142 types, rather than any object that can be represented as a numeric.
Andrew McNamara0f0599d2005-01-12 09:45:18 +00001143 + when quoting=QUOTE_NONNUMERIC, the reader now casts unquoted fields
1144 to floats.
Andrew McNamaraf69d94f2005-01-13 11:30:54 +00001145 + reader now allows \r characters to be quoted (previously it only allowed
1146 \n to be quoted).
Andrew McNamarac89f2842005-01-12 07:44:42 +00001147 + writer doublequote handling improved.
Andrew McNamaraa08eecb2005-01-12 03:25:27 +00001148 + Dialect classes passed to the module are no longer instantiated by
1149 the module before being parsed (the former validation scheme required
1150 this, but the mechanism was unreliable).
1151 + The dialect registry now contains instances of the internal
1152 C-coded dialect type, rather than references to python objects.
1153 + the internal c-coded dialect type is now immutable.
1154 + register_dialect now accepts the same keyword dialect specifications
1155 as the reader and writer, allowing the user to register dialects
1156 without first creating a dialect class.
1157 + a configurable limit to the size of parsed fields has been added -
1158 previously, an unmatched quote character could result in the entire
1159 file being read into the field buffer before an error was reported.
Andrew McNamara31d88962005-01-12 03:45:10 +00001160 + A new module method csv.field_size_limit() has been added that sets
Andrew McNamaraa08eecb2005-01-12 03:25:27 +00001161 the parser field size limit (returning the former limit). The initial
1162 limit is 128kB.
Andrew McNamara7f2053e2005-01-12 11:17:16 +00001163 + A line_num attribute has been added to the reader object, which tracks
1164 the number of lines read from the source iterator. This is not
1165 the same as the number of records returned, as records can span
1166 multiple lines.
Andrew McNamaraa08eecb2005-01-12 03:25:27 +00001167 + reader and writer objects were not being registered with the cyclic-GC.
1168 This has been fixed.
1169
Brett Cannone6539c42005-01-08 02:43:53 +00001170- _DummyThread objects in the threading module now delete self.__block that is
1171 inherited from _Thread since it uses up a lock allocated by 'thread'. The
1172 lock primitives tend to be limited in number and thus should not be wasted on
1173 a _DummyThread object. Fixes bug #1089632.
1174
Raymond Hettinger97db05d2005-01-07 08:15:41 +00001175- The imghdr module now detects Exif files.
1176
Raymond Hettinger6065d322004-12-20 23:51:53 +00001177- StringIO.truncate() now correctly adjusts the size attribute.
1178 (Bug #951915).
1179
Marc-André Lemburgbb4f1bd2004-12-10 21:58:14 +00001180- locale.py now uses an updated locale alias table (built using
1181 Tools/i18n/makelocalealias.py, a tool to parse the X11 locale
1182 alias file); the encoding lookup was enhanced to use Python's
Andrew M. Kuchling88b85822005-08-23 00:57:07 +00001183 encoding alias table.
Marc-André Lemburgbb4f1bd2004-12-10 21:58:14 +00001184
Raymond Hettinger3557f422004-12-07 12:02:02 +00001185- moved deprecated modules to Lib/lib-old: whrandom, tzparse, statcache.
1186
Raymond Hettingera6b45cc2004-12-07 07:05:57 +00001187- the pickle module no longer accepts the deprecated None option in the
1188 args tuple returned by __reduce__().
1189
Brett Cannon84667c02004-12-07 03:25:18 +00001190- optparse now optionally imports gettext. This allows its use in setup.py.
1191
Raymond Hettinger3489cad2004-12-05 05:20:42 +00001192- the pickle module no longer uses the deprecated bin parameter.
1193
Raymond Hettinger1bc82f82004-12-05 03:58:17 +00001194- the shelve module no longer uses the deprecated binary parameter.
1195
Raymond Hettinger6c92d762004-12-05 03:28:00 +00001196- the pstats module no longer uses the deprecated ignore() method.
1197
Raymond Hettingerf3fa9462004-12-05 01:58:09 +00001198- the filecmp module no longer uses the deprecated use_statcache argument.
1199
Raymond Hettinger664347b2004-12-04 21:21:53 +00001200- unittest.TestCase.run() and unittest.TestSuite.run() can now be successfully
1201 extended or overridden by subclasses. Formerly, the subclassed method would
1202 be ignored by the rest of the module. (Bug #1078905).
1203
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001204- heapq.nsmallest() and heapq.nlargest() now support key= arguments with
Raymond Hettinger3b0c7c22004-12-03 08:30:39 +00001205 the same meaning as in list.sort().
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001206
Walter Dörwald36733692004-12-22 12:50:50 +00001207- Bug #1076985: ``codecs.StreamReader.readline()`` now calls ``read()`` only
1208 once when a size argument is given. This prevents a buffer overflow in the
1209 tokenizer with very long source lines.
1210
Barry Warsaw538561e2006-01-01 21:48:54 +00001211- Bug #1083110: ``zlib.decompress.flush()`` would segfault if called
1212 immediately after creating the object, without any intervening
1213 ``.decompress()`` calls.
Andrew M. Kuchling3b585b32004-12-28 20:10:48 +00001214
Skip Montanaro05885812005-01-16 20:48:27 +00001215- The reconvert.quote function can now emit triple-quoted strings. The
1216 reconvert module now has some simple documentation.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001217
Walter Dörwaldaf3b39a2005-02-18 13:22:43 +00001218- ``UserString.MutableString`` now supports negative indices in
1219 ``__setitem__`` and ``__delitem__``
1220
Greg Ward40407942005-03-05 02:53:17 +00001221- Bug #1149508: ``textwrap`` now handles hyphenated numbers (eg. "2004-03-05")
1222 correctly.
1223
Walter Dörwaldbc8e6422005-04-21 21:32:03 +00001224- Partial fixes for SF bugs #1163244 and #1175396: If a chunk read by
1225 ``codecs.StreamReader.readline()`` has a trailing "\r", read one more
1226 character even if the user has passed a size parameter to get a proper
1227 line ending. Remove the special handling of a "\r\n" that has been split
1228 between two lines.
1229
Walter Dörwalda47d1c02005-08-30 10:23:14 +00001230- Bug #1251300: On UCS-4 builds the "unicode-internal" codec will now complain
1231 about illegal code points. The codec now supports PEP 293 style error
1232 handlers.
1233
Walter Dörwald78a78b02005-09-01 12:04:29 +00001234- Bug #1235646: ``codecs.StreamRecoder.next()`` now reencodes the data it reads
Walter Dörwaldc5238b82005-09-01 11:56:53 +00001235 from the input stream, so that the output is a byte string in the correct
1236 encoding instead of a unicode string.
Greg Ward40407942005-03-05 02:53:17 +00001237
Gustavo Niemeyer6fa0c5a2005-09-14 08:54:39 +00001238- Bug #1202493: Fixing SRE parser to handle '{}' as perl does, rather than
1239 considering it exactly like a '*'.
1240
Walter Dörwald007f8df2005-10-09 19:42:27 +00001241- Bug #1245379: Add "unicode-1-1-utf-7" as an alias for "utf-7" to
1242 ``encodings.aliases``.
Gustavo Niemeyer6fa0c5a2005-09-14 08:54:39 +00001243
Walter Dörwald09f0dd52005-11-21 19:10:07 +00001244- ` uu.encode()`` and ``uu.decode()`` now support unicode filenames.
1245
Gustavo Niemeyer548148812006-01-31 18:34:13 +00001246- Patch #1413711: Certain patterns of differences were making difflib
1247 touch the recursion limit.
1248
Walter Dörwald58917a62006-03-31 15:26:22 +00001249- Bug #947906: An object oriented interface has been added to the calendar
1250 module. It's possible to generate HTML calendar now and the module can be
Walter Dörwald48d5e502006-04-01 07:57:00 +00001251 called as a script (e.g. via ``python -mcalendar``). Localized month and
1252 weekday names can be ouput (even if an exotic encoding is used) using
1253 special classes that use unicode.
Walter Dörwald58917a62006-03-31 15:26:22 +00001254
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001255Build
1256-----
1257
Neal Norwitz602d3392006-03-31 08:21:40 +00001258- Fix test_float, test_long, and test_struct failures on Tru64 with gcc
1259 by using -mieee gcc option.
1260
Martin v. Löwis86d66262006-02-17 08:40:11 +00001261- Patch #1432345: Make python compile on DragonFly.
1262
Martin v. Löwis856bf9a2006-02-14 20:42:55 +00001263- Build support for Win64-AMD64 was added.
1264
Martin v. Löwisa55e55e2006-02-11 15:55:14 +00001265- Patch #1428494: Prefer linking against ncursesw over ncurses library.
1266
Martin v. Löwisfd9a72a2006-01-08 10:07:33 +00001267- Patch #881820: look for openpty and forkpty also in libbsd.
1268
Martin v. Löwis64c33dd2006-01-03 07:42:14 +00001269- The sources of zlib are now part of the Python distribution (zlib 1.2.3).
1270 The zlib module is now builtin on Windows.
1271
Martin v. Löwisd5845ec2005-12-30 12:31:38 +00001272- Use -xcode=pic32 for CCSHARED on Solaris with SunPro.
1273
Martin v. Löwis147fbe52005-08-07 21:09:30 +00001274- Bug #1189330: configure did not correctly determine the necessary
1275 value of LINKCC if python was built with GCC 4.0.
1276
Trent Mick8321b422005-07-26 02:29:21 +00001277- Upgrade Windows build to zlib 1.2.3 which eliminates a potential security
1278 vulnerability in zlib 1.2.1 and 1.2.2.
1279
Brett Cannon08cd5982005-04-24 22:26:38 +00001280- EXTRA_CFLAGS has been introduced as an environment variable to hold compiler
1281 flags that change binary compatibility. Changes were also made to
1282 distutils.sysconfig to also use the environment variable when used during
Martin v. Löwisd7c795e2005-04-25 07:14:03 +00001283 compilation of the interpreter and of C extensions through distutils.
Brett Cannon08cd5982005-04-24 22:26:38 +00001284
Bob Ippolitoed233462005-03-29 13:47:59 +00001285- SF patch 1171735: Darwin 8's headers are anal about POSIX compliance,
1286 and linking has changed (prebinding is now deprecated, and libcc_dynamic
1287 no longer exists). This configure patch makes things right.
1288
Martin v. Löwise2713be2005-03-08 15:03:08 +00001289- Bug #1158607: Build with --disable-unicode again.
1290
Brett Cannon46d96232005-02-16 00:07:19 +00001291- spwdmodule.c is built only if either HAVE_GETSPNAM or HAVE_HAVE_GETSPENT is
1292 defined. Discovered as a result of not being able to build on OS X.
1293
Brett Cannon516592f2004-12-07 00:42:59 +00001294- setup.py now uses the directories specified in LDFLAGS using the -L option
1295 and in CPPFLAGS using the -I option for adding library and include
1296 directories, respectively, for compiling extension modules against. This has
1297 led to the core being compiled using the values in CPPFLAGS. It also removes
1298 the need for the special-casing of both DarwinPorts and Fink for darwin since
1299 the proper directories can be specified in LDFLAGS (``-L/sw/lib`` for Fink,
1300 ``-L/opt/local/lib`` for DarwinPorts) and CPPFLAGS (``-I/sw/include`` for
1301 Fink, ``-I/opt/local/include`` for DarwinPorts).
1302
Brett Cannon43802422005-02-10 20:48:03 +00001303- Test in configure.in that checks for tzset no longer dependent on tm->tm_zone
1304 to exist in the struct (not required by either ISO C nor the UNIX 2 spec).
1305 Tests for sanity in tzname when HAVE_TZNAME defined were also defined.
1306 Closes bug #1096244. Thanks Gregory Bond.
1307
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001308C API
1309-----
1310
Tim Petersc9d78aa2006-03-26 23:27:58 +00001311- ``PyMem_{Del, DEL}`` and ``PyMem_{Free, FREE}`` no longer map to
1312 ``PyObject_{Free, FREE}``. They map to the system ``free()`` now. If memory
1313 is obtained via the ``PyObject_`` family, it must be released via the
1314 ``PyObject_`` family, and likewise for the ``PyMem_`` family. This has
1315 always been officially true, but when Python's small-object allocator was
1316 introduced, an attempt was made to cater to a few extension modules
1317 discovered at the time that obtained memory via ``PyObject_New`` but
1318 released it via ``PyMem_DEL``. It's years later, and if such code still
1319 exists it will fail now (probably with segfaults, but calling wrong
1320 low-level memory management functions can yield many symptoms).
1321
Raymond Hettingerbeb31012005-08-16 03:47:52 +00001322- Added a C API for set and frozenset objects.
1323
Raymond Hettinger66517482004-12-03 11:45:13 +00001324- Removed PyRange_New().
1325
Walter Dörwaldd1c1e102005-10-06 20:29:57 +00001326- Patch #1313939: PyUnicode_DecodeCharmap() accepts a unicode string as the
1327 mapping argument now. This string is used as a mapping table. Byte values
1328 greater than the length of the string and 0xFFFE are treated as undefined
1329 mappings.
1330
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001331
1332Tests
1333-----
1334
Martin v. Löwis4d394df2005-01-23 09:19:22 +00001335- In test_os, st_?time is now truncated before comparing it with ST_?TIME.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001336
Hye-Shik Changaaa2f1d2005-12-10 17:44:27 +00001337- Patch #1276356: New resource "urlfetch" is implemented. This enables
1338 even impatient people to run tests that require remote files.
1339
Brett Cannonced04e02005-02-13 22:53:22 +00001340
1341Documentation
1342-------------
1343
Georg Brandl8cb30772006-01-20 09:34:29 +00001344- Bug #1402224: Add warning to dl docs about crashes.
1345
Georg Brandla3a93ae2006-01-20 09:14:36 +00001346- Bug #1396471: Document that Windows' ftell() can return invalid
1347 values for text files with UNIX-style line endings.
1348
Georg Brandl32252422005-09-14 20:42:00 +00001349- Bug #1274828: Document os.path.splitunc().
1350
Georg Brandl79c122f2005-08-24 07:31:33 +00001351- Bug #1190204: Clarify which directories are searched by site.py.
1352
Georg Brandl6f2bbd32005-08-24 07:26:55 +00001353- Bug #1193849: Clarify os.path.expanduser() documentation.
1354
Georg Brandlf13c4ba2005-08-02 10:28:08 +00001355- Bug #1243192: re.UNICODE and re.LOCALE affect \d, \D, \s and \S.
1356
Georg Brandl150db732005-07-18 08:53:17 +00001357- Bug #755617: Document the effects of os.chown() on Windows.
1358
Georg Brandl379f99d2005-06-26 21:09:38 +00001359- Patch #1180012: The documentation for modulefinder is now in the library reference.
1360
1361- Patch #1213031: Document that os.chown() accepts argument values of -1.
1362
1363- Bug #1190563: Document os.waitpid() return value with WNOHANG flag.
1364
1365- Bug #1175022: Correct the example code for property().
1366
Georg Brandl40c71652005-06-25 21:08:46 +00001367- Document the IterableUserDict class in the UserDict module.
1368 Closes bug #1166582.
1369
Brett Cannonced04e02005-02-13 22:53:22 +00001370- Remove all latent references for "Macintosh" that referred to semantics for
1371 Mac OS 9 and change to reflect the state for OS X.
1372 Closes patch #1095802. Thanks Jack Jansen.
1373
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001374Mac
1375---
1376
1377
Hye-Shik Chang4e422812005-07-17 02:36:59 +00001378New platforms
1379-------------
1380
1381- FreeBSD 7 support is added.
1382
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001383
1384Tools/Demos
1385-----------
1386
Brett Cannonacde7342006-03-01 04:28:00 +00001387- Created Misc/Vim/vim_syntax.py to auto-generate a python.vim file in that
1388 directory for syntax highlighting in Vim. Vim directory was added and placed
1389 vimrc to it (was previous up a level).
1390
Georg Brandl56897312005-08-24 18:32:30 +00001391- Added two new files to Tools/scripts: pysource.py, which recursively
1392 finds Python source files, and findnocoding.py, which finds Python
1393 source files that need an encoding declaration.
1394 Patch #784089, credits to Oleg Broytmann.
1395
Georg Brandl379f99d2005-06-26 21:09:38 +00001396- Bug #1072853: pindent.py used an uninitialized variable.
1397
Martin v. Löwisab9ec162005-04-09 10:53:34 +00001398- Patch #1177597: Correct Complex.__init__.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001399
Barry Warsaw538561e2006-01-01 21:48:54 +00001400- Fixed a display glitch in Pynche, which could cause the right arrow to
1401 wiggle over by a pixel.
Raymond Hettinger4901a1f2004-12-02 08:59:14 +00001402
Skip Montanaroe5d7f7f2002-09-20 14:16:59 +00001403----
1404
1405**(For information about older versions, consult the HISTORY file.)**