5 (editors: check NEWS.help for information about editing NEWS using ReST.)
7 What's New in Python 2.6 beta 1?
8 ================================
10 *Release date: XX-June-2008*
15 - Issue #2790: sys.flags was not properly exposing its bytes_warning attribute.
23 - The stringold module has been deprecated for removal in Python 3.0.
25 - The mutex module has been deprecated for removal in Python 3.0.
27 - The imputil module has been deprecated for removal in Python 3.0.
29 - test.test_support.catch_warning() gained a 'record' argument.
34 What's New in Python 2.6 alpha 3?
35 =================================
37 *Release date: 08-May-2008*
42 - Issue #2719: backported the ``next()`` builtin from Python 3.
44 - Issue #2681: The octal literal ``0o8`` was incorrecly acctepted. Now it
45 properly raises a SyntaxError.
47 - Patch #2617: Reserved -J and -X arguments for Jython, IronPython and other
48 implementations of Python.
50 - Implemented PEP 370: Per user site-packages directory
55 - Issue #2670: Fix a failure in urllib2.build_opener(), when passed two
56 handlers that derive the same default base class.
58 - Added kill, terminate and send_signal(sig) to subprocess.Popen.
60 - Added phase(z) -> phi, polar(z) -> r, phi and rect(r, phi) -> z to the cmath
63 - Four new methods were added to the math and cmath modules:
64 acosh, asinh, atanh and log1p.
66 - zlib.decompressobj().flush(value) no longer crashes the interpreter when
67 passed a value less than or equal to zero.
69 - Issue #1631171: Re-implement the 'warnings' module in C (the original Python
70 code has been kept as backup). This will allow for using the 'warning's
71 machinery in such places as the parser where use of pure Python code is not
72 possible. Both the ``showarning()`` and ``formatwarning()`` gain an
73 optional 'line' argument which is not called by default for
74 backwards-compatibility reasons. Setting ``warnings.showwarning()`` to
75 an implementation that lacks support for the ``line`` argument will raise a
81 - The audiodev module has been deprecated for removal in Python 3.0.
83 - Issue #2750: Add the 'json' package. Based on simplejson 1.9 and contributed
86 - Issue #1734346: Support Unicode file names for zipfiles.
88 - Issue #2581: distutils: Vista UAC/elevation support for bdist_wininst
90 - Issue #2635: Fix bug in 'fix_sentence_endings' textwrap.fill option,
91 where an extra space was added after a word containing (but not
92 ending in) '.', '!' or '?'.
94 - Add from_buffer() and from_buffer_copy() class methods to ctypes
97 - Issue #2682: ctypes callback functions no longer contain a cyclic
98 reference to themselves.
100 - The getpass module has been improved on Unix. It now uses /dev/tty
101 by default and uses stderr instead of stdout. A GetPassWarning is
102 issued when input echo cannot be controlled.
104 - Issue #2014: Allow XML-RPC datetime objects to have dates before
107 - Issue #2439: Added new function pkgutil.get_data(), which is a
108 convenience wrapper for the PEP 302 get_data() API.
110 - Issue #2616: The ctypes.pointer() and ctypes.POINTER() functions are
111 now implemented in C for better performance.
113 - Issue #2408: The ``_types`` module, which was used as in implementation
114 detail of the public ``types`` module, has been removed and replaced by pure
117 - Issue #2513: distutils on Windows is now capable of cross-compiling
118 extension modules between 32 and 64 bit platforms. See the distutls
119 build documentation for more information.
121 - Issue #815646: Individual file objects may now be used from multiple
122 threads at once without fear of crashing the Python interpreter. If
123 file.close() is called while an object is in use by another thread
124 an IOError exception will be raised and the file will not be closed.
126 - The bundled libffi copy is now in sync with the recently released
127 libffi3.0.5 version, apart from some small changes to
128 Modules/_ctypes/libffi/configure.ac.
130 - Issue #2385: distutils.core.run_script() makes __file__ available, so the
131 controlled environment will more closely mirror the typical script
132 environment. This supports setup.py scripts that refer to data files.
136 - Issue #2550: The approach used by client/server code for obtaining ports
137 to listen on in network-oriented tests has been refined in an effort to
138 facilitate running multiple instances of the entire regression test suite
139 in parallel without issue. test_support.bind_port() has been fixed such
140 that it will always return a unique port -- which wasn't always the case
141 with the previous implementation, especially if socket options had been
142 set that affected address reuse (i.e. SO_REUSEADDR, SO_REUSEPORT). The
143 new implementation of bind_port() will actually raise an exception if it
144 is passed an AF_INET/SOCK_STREAM socket with either the SO_REUSEADDR or
145 SO_REUSEPORT socket option set. Furthermore, if available, bind_port()
146 will set the SO_EXCLUSIVEADDRUSE option on the socket it's been passed.
147 This currently only applies to Windows. This option prevents any other
148 sockets from binding to the host/port we've bound to, thus removing the
149 possibility of the 'non-deterministic' behaviour, as Microsoft puts it,
150 that occurs when a second SOCK_STREAM socket binds and accepts to a
151 host/port that's already been bound by another socket. The optional
152 preferred port parameter to bind_port() has been removed. Under no
153 circumstances should tests be hard coding ports!
155 test_support.find_unused_port() has also been introduced, which will pass
156 a temporary socket object to bind_port() in order to obtain an unused port.
157 The temporary socket object is then closed and deleted, and the port is
158 returned. This method should only be used for obtaining an unused port
159 in order to pass to an external program (i.e. the -accept [port] argument
160 to openssl's s_server mode) or as a parameter to a server-oriented class
161 that doesn't give you direct access to the underlying socket used.
163 Finally, test_support.HOST has been introduced, which should be used for
164 the host argument of any relevant socket calls (i.e. bind and connect).
166 The following tests were updated to following the new conventions:
167 test_socket, test_smtplib, test_asyncore, test_ssl, test_httplib,
168 test_poplib, test_ftplib, test_telnetlib, test_socketserver,
169 test_asynchat and test_socket_ssl.
171 It is now possible for multiple instances of the regression test suite to
172 run in parallel without issue.
177 - Issue #1496032: On alpha, use -mieee when gcc is the compiler.
179 - Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
180 gcc is used as compiler.
182 - Issue #2573: On MacOS X it is now possible to install the framework
183 with a different name using --with-framework-name=NAME.
188 - Added implementation of copysign, acosh, asinh, atanh and log1p
189 to the new files Include/pymath.h and Python/pymath.h for
190 platforms which provide the functions through their libm. The
191 files also contains several helpers and constants for math.
193 - Added a new convenience function, PyErr_WarnPy3k, for issuing Py3k
197 What's New in Python 2.6 alpha 2?
198 =================================
200 *Release date: 02-Apr-2008*
205 - Issue #1733757: The interpreter would hang on shutdown if the tracing
206 function set by sys.settrace is still active and happens to call
207 threading.currentThread().
209 - Patch #1442: properly report exceptions when the PYTHONSTARTUP file
212 - The compilation of a class nested in another class used to leak one
213 reference on the outer class name.
215 - Patch #1810: compile() can now compile _ast trees as returned by
216 compile(..., PyCF_ONLY_AST).
218 - Patch #2426: Added sqlite3.Connection.iterdump method to allow easy dumping
219 of databases. Contributed by Paul Kippes at PyCon 2008.
221 - Patch #2477: Added from __future__ import unicode_literals.
223 - Added backport of bytearray type.
225 - Issue #2355: add Py3k warning for buffer().
227 - Issue #1477: With narrow Unicode builds, the unicode escape sequence
228 \Uxxxxxxxx did not accept values outside the Basic Multilingual Plane. This
229 affected raw unicode literals and the 'raw-unicode-escape' codec. Now
230 UTF-16 surrogates are generated in this case, like normal unicode literals
231 and the 'unicode-escape' codec.
233 - Issue #2348: add Py3k warning for file.softspace.
235 - Issue #2346/#2347: add Py3k warnings for __methods__ and __members__.
237 - Issue #2358: Add a Py3k warning on sys.exc_clear() usage.
239 - Issue #2400: Allow relative imports to "import *".
241 - Issue 1745. Backport print function with:
242 from __future__ import print_function
244 - Issue 2332: add new attribute names for instance method objects.
245 The two changes are: im_self -> __self__ and im_func -> __func__
247 - Issue 2379: Raise a Py3K warning for __getitem__ or __getslice__ on
250 - Issue #2371: Add a Py3k warning when catching an exception that
251 doesn't derive from BaseException. Issue #2341: Add a Py3k warning
252 when raising an exception that doesn't derive from BaseException.
254 - Issue #2321: use pymalloc for unicode object string data to reduce
255 memory usage in some circumstances.
257 - PEP 3127: octal literals now start with "0o". Old-style octal literals
258 are still valid. There are binary literals with a prefix of "0b".
259 This also affects int(x, 0).
261 - Issue #2359: Adding deprecation warnings for array.{read,write}.
263 - Issue #1779871: Gnu gcc can now build Python on OS X because the
264 flags -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd are no
267 - Add a warning when asserting a non-empty tuple which is always true.
269 - Issue #2179: speed up with statement execution by storing the exit method
270 on the stack instead of in a temporary variable (patch by Jeffrey Yaskin)
272 - Issue #2238: Some syntax errors in *args and **kwargs expressions could give
273 bogus error messages.
275 - Issue #2143: Fix embedded readline() hang on SSL socket EOF.
280 - Patch #2240: Implement signal.setitimer and signal.getitimer.
285 - Issue #2315: logging.handlers: TimedRotatingFileHandler now accounts for
286 daylight savings time in calculating the next rollover.
288 - Issue #2316: logging.handlers: TimedRotatingFileHandler now calculates
289 rollovers correctly even when nothing is logged for a while.
291 - Issue #2317: logging.handlers: TimedRotatingFileHandler now uses improved
292 logic for removing old files.
294 - Issue #2495: tokenize.untokenize now inserts a space between two consecutive
295 string literals; previously, ["" ""] was rendered as [""""], which is
296 incorrect python code.
298 - Issue #2248: return the result of the QUIT command. from SMTP.quit().
300 - Backport of Python 3.0's io module.
302 - Issue #2482: Make sure that the coefficient of a Decimal is always
303 stored as a str instance, not as a unicode instance. This ensures
304 that str(Decimal) is always an instance of str.
306 - Issue #2478: fix failure of decimal.Decimal(0).sqrt()
308 - Issue #2432: give DictReader the dialect and line_num attributes
309 advertised in the docs.
311 - Issue #2460: Make Ellipsis object copyable.
313 - Issue #1681432: Add triangular distribution to the random module
315 - Issue #2136: urllib2's auth handler now allows single-quoted realms in the
316 WWW-Authenticate header.
318 - Issue #2434: Enhanced platform.win32_ver() to also work on Python
319 installation which do not have the win32all package installed.
321 - Added support to platform.uname() to also report the machine
322 and processor information on Windows XP and later. As a result,
323 platform.machine() and platform.processor() will report this
326 - The library implementing the 2to3 conversion, lib2to3, was added
327 to the standard distribution.
329 - Issue #1747858: Fix chown to work with large uid's and gid's on 64-bit
332 - Issue #1202: zlib.crc32 and zlib.adler32 no longer return different values
333 on 32-bit vs. 64-bit python interpreters. Both were correct, but they now
334 both return a signed integer object for consistency.
336 - Issue #1158: add %f format (fractions of a second represented as
337 microseconds) to datetime objects. Understood by both strptime and
340 - Issue #705836: struct.pack(">f", x) now raises OverflowError on all
341 platforms when x is too large to fit into an IEEE 754 float; previously
342 it only raised OverflowError on non IEEE 754 platforms.
344 - Issue #1106316: pdb.post_mortem()'s parameter, "traceback", is now
345 optional: it defaults to the traceback of the exception that is currently
346 being handled (is mandatory to be in the middle of an exception, otherwise
347 it raises ValueError).
349 - Issue #1193577: A .shutdown() method has been added to SocketServers
350 which terminates the .serve_forever() loop.
352 - Bug #2220: handle rlcompleter attribute match failure more gracefully.
354 - Issue #2225: py_compile, when executed as a script, now returns a non-
355 zero status code if not all files could be compiled successfully.
357 - Bug #1725737: In distutil's sdist, exclude RCS, CVS etc. also in the
358 root directory, and also exclude .hg, .git, .bzr, and _darcs.
360 - Issue #1872: The struct module typecode for _Bool has been changed
363 - The bundled libffi copy is now in sync with the recently released
364 libffi3.0.4 version, apart from some small changes to
365 Modules/_ctypes/libffi/configure.ac.
366 On OS X, preconfigured libffi files are used.
367 On all linux systems the --with-system-ffi configure option defaults
370 - Issue 1577: shutil.move() now calls os.rename() if the destination is a
371 directory instead of copying-then-remove-source.
376 - test_nis no longer fails when test.test_support.verbose is true and NIS is
377 not set up on the testing machine.
379 - Output comparison tests are no longer supported.
381 - Rewrite test_errno to use unittest and no longer be a no-op.
383 - GHOP 234: Convert test_extcall to doctest.
385 - GHOP 290: Convert test_dbm and test_dummy_threading to unittest.
387 - GHOP 293: Convert test_strftime, test_getargs, and test_pep247 to unittest.
389 - Issue #2055: Convert test_fcntl to unittest.
391 - Issue 1960: Convert test_gdbm to unittest.
393 - GHOP 294: Convert test_contains, test_crypt, and test_select to unittest.
395 - GHOP 238: Convert test_tokenize to use doctest.
397 - GHOP 237: Rewrite test_thread using unittest.
399 - Patch #2232: os.tmpfile might fail on Windows if the user has no
400 permission to create files in the root directory.
405 - A new script 2to3 is now installed, to run the 2.x to 3.x converter.
407 - Python/memmove.c and Python/strerror.c have been removed; both functions are
408 in the C89 standard library.
410 - Patch #2284: Add -x64 option to rt.bat.
415 - Patch #2477: Added PyParser_ParseFileFlagsEx() and
416 PyParser_ParseStringFlagsFilenameEx()
418 What's New in Python 2.6 alpha 1?
419 =================================
421 *Release date: 29-Feb-2008*
426 - Issue #2051: pyc and pyo files are no longer created with permission
427 644. The mode is now inherited from the py file.
429 - Issue #2067: file.__exit__() now calls subclasses' close() method.
431 - Patch #1759: Backport of PEP 3129 class decorators.
433 - Issue #1881: An internal parser limit has been increased. Also see
434 issue 215555 for a discussion.
436 - Added the future_builtins module, which contains hex() and oct().
437 These are the PEP 3127 version of these functions, designed to be
438 compatible with the hex() and oct() builtins from Python 3.0. They
439 differ slightly in their output formats from the existing, unchanged
440 Python 2.6 builtins. The expected usage of the future_builtins
442 from future_builtins import hex, oct
444 - Issue #1600: Modifed PyOS_ascii_formatd to use at most 2 digit
445 exponents for exponents with absolute value < 100. Follows C99
446 standard. This is a change on Windows, which would use 3 digits.
447 Also, added 'n' to the formats that PyOS_ascii_formatd understands,
448 so that any alterations it does to the resulting string will be
449 available in stringlib/formatter.h (for float.__format__).
451 - Implemented PEP 3101, Advanced String Formatting. This adds a new
452 builtin format(); a format() method for str and unicode; a
453 __format__() method to object, str, unicode, int, long, float, and
454 datetime; the class string.Formatter; and the C API
457 - Fixed several potential crashes, all caused by specially crafted __del__
458 methods exploiting objects in temporarily inconsistent state.
460 - Issue #2115: Important speedup in setting __slot__ attributes. Also
461 prevent a possible crash: an Abstract Base Class would try to access a slot
462 on a registered virtual subclass.
464 - Fixed repr() and str() of complex numbers with infinity or nan as real or
467 - Clear all free lists during a gc.collect() of the highest generation in order
468 to allow pymalloc to free more arenas. Python may give back memory to the
471 - Issue #2045: Fix an infinite recursion triggered when printing a subclass of
472 collections.defaultdict, if its default_factory is set to a bound method.
474 - Fixed a minor memory leak in dictobject.c. The content of the free
475 list was not freed on interpreter shutdown.
477 - Limit free list of method and builtin function objects to 256 entries
480 - Patch #1953: Added ``sys._compact_freelists()`` and the C API functions
481 ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
482 to compact the internal free lists of pre-allocted ints and floats.
484 - Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
485 Python expected the return type int but the fork familie returns pi_t.
487 - Issue #1678380: Fix a bug that identifies 0j and -0j when they appear
488 in the same code unit.
490 - Issue #2025 : Add tuple.count() and tuple.index() methods to comply with
491 the collections.Sequence API.
493 - Patch #1970 by Antoine Pitrou: Speedup unicode whitespace and linebreak
496 - Added ``PyType_ClearCache()`` and ``sys._clear_type_cache`` to clear the
497 internal lookup cache for ref leak tests.
499 - Patch #1473257: generator objects gain a gi_code attribute. This is the
500 same object as the func_code attribute of the function that produced the
503 - Issue #1920: "while 0" statements were completely removed by the compiler,
504 even in the presence of an "else" clause, which is supposed to be run when
505 the condition is false. Now the compiler correctly emits bytecode for the
508 - A few crashers fixed: weakref_in_del.py (issue #1377858);
509 loosing_dict_ref.py (issue #1303614, test67.py);
510 borrowed_ref_[34].py (not in tracker).
512 - Issue #1069410: The "can't load dll" message box on Windows is
513 suppressed while an extension is loaded by calling SetErrorMode in
514 dynload_win.c. The error is still reported properly.
516 - Bug #1915: Python compiles with --enable-unicode=no again. However
517 several extension methods and modules do not work without unicode
520 - Issue #1882: when compiling code from a string, encoding cookies in the
521 second line of code were not always recognized correctly.
523 - Issue #1679: "0x" was taken as a valid integer literal.
525 - Issue #1865: ``bytes`` as an alias for ``str`` and b"" as an alias "" were
528 - sys.float_info / PyFloat_GetInfo: The floating point information
529 object was converted from a dict to a specialized structseq object.
531 - Patch #1816: Added sys.flags structseq. It exposes the status of most
532 command line arguments and PYTHON* environment variables.
534 - Objects/structseq.c: Implemented new structseq representation. The patch
535 makes structseqs (e.g. the return value of os.stat) more readable.
537 - Patch #1700288: added a type attribute cache that caches method accesses,
538 resulting in speedups in heavily object-oriented code.
540 - Bug #1776: __import__() no longer accepts filenames on any platform.
541 The first parameter to __import__() must be a valid module name.
543 - Patch #1668: renamed THREADDEBUG envvar to PYTHONTHREADDEBUG.
545 - Patch #602345: Add -B command line option, PYTHONDONTWRITEBYTECODE envvar
546 and sys.dont_write_bytecode attribute. All these can be set to forbid Python
547 to attempt to write compiled bytecode files.
549 - Improve some exception messages when Windows fails to load an extension
550 module. Now we get for example '%1 is not a valid Win32 application' instead
553 - Bug #1481296: Fixed long(float('nan'))!=0L.
555 - Issue #1640: Added math.isinf(x), math.isnan(x) and math.copysign(x, y)
558 - Issue #1635: Platform independent creation and representation of NaN
559 and INF. float("nan"), float("inf") and float("-inf") now work on every
560 platform with IEEE 754 semantics.
562 - Compiler now generates simpler and faster code for dictionary literals.
563 The oparg for BUILD_MAP now indicates an estimated dictionary size.
564 There is a new opcode, STORE_MAP, for adding entries to the dictionary.
566 - Issue #1638: %zd configure test fails on Linux
568 - Issue #1620: New property decorator syntax was modifying the decorator
569 in place instead of creating a new decorator object.
571 - Issue #1538: Avoid copying string in split/rsplit if the split
574 - Issue #1553: An erroneous __length_hint__ can make list() raise a
577 - PEP 366: Allow explicit relative imports when executing modules
578 inside packages with the -m switch via a new module level
579 __package__ attribute.
581 - Issue #1402: Fix a crash on exit, when another thread is still running, and
582 if the deallocation of its frames somehow calls the PyGILState_Ensure() /
583 PyGILState_Release() functions.
585 - Expose the Py_Py3kWarningFlag as sys.py3kwarning.
587 - Issue #1445: Fix a SystemError when accessing the ``cell_contents``
588 attribute of an empty cell object.
590 - Issue #1460: The utf-7 incremental decoder did not accept truncated input.
591 It now correctly saves its state between chunks of data.
593 - Patch #1739468: Directories and zipfiles containing a __main__.py file can
594 now be directly executed by passing their name to the interpreter. The
595 directory/zipfile is automatically inserted as the first entry in sys.path.
597 - Issue #1265: Fix a problem with sys.settrace, if the tracing function uses a
598 generator expression when at the same time the executed code is closing a
601 - sets and frozensets now have an isdisjoint() method.
603 - optimize the performance of builtin.sum().
605 - Fix warnings found by the new version of the Coverity checker.
607 - The enumerate() builtin function is no longer bounded to sequences smaller
608 than LONG_MAX. Formerly, it raised an OverflowError. Now, automatically
609 shifts from ints to longs.
611 - Issue #1686386: Tuple's tp_repr did not take into account the possibility of
612 having a self-referential tuple, which is possible from C code. Nor did
613 object's tp_str consider that a type's tp_str could do something that could
614 lead to an inifinite recursion. Py_ReprEnter() and Py_EnterRecursiveCall(),
615 respectively, fixed the issues.
617 - Issue #1164: It was possible to trigger deadlock when using the 'print'
618 statement to write to a file since the GIL was not released as needed. Now
619 PyObject_Print() does the right thing along with various tp_print
620 implementations of the built-in types and those in the collections module.
622 - Issue #1147: Exceptions were directly allowing string exceptions in their
623 throw() method even though string exceptions no longer allowed.
625 - Issue #1096: Prevent a segfault from getting the repr of a very deeply nested
626 list by using the recursion counter.
628 - Issue #1202533: Fix infinite recursion calls triggered by calls to
629 PyObject_Call() never calling back out to Python code to trigger recursion
630 depth updates/checks. Required the creation of a static RuntimeError
631 instance in case normalizing an exception put the recursion check value past
632 its limit. Fixes crashers infinite_rec_(1|2|4|5).py.
634 - Patch #1031213: Decode source line in SyntaxErrors back to its original source
637 - Patch #1673759: add a missing overflow check when formatting floats
640 - Prevent expandtabs() on string and unicode objects from causing a segfault
641 when a large width is passed on 32-bit platforms.
643 - Bug #1733488: Fix compilation of bufferobject.c on AIX.
645 - Bug #1722485: remove docstrings again when running with -OO.
647 - Add new attribute names for function objects. All the func_* become
648 __*__ attributes. (Some already existed, e.g., __doc__ and __name__.)
650 - Add -3 option to the interpreter to warn about features that are
651 deprecated and will be changed/removed in Python 3.0.
653 - Patch #1686487: you can now pass any mapping after '**' in function
656 - except clauses may now be spelled either "except E, target:" or
657 "except E as target:". This is to provide forwards compatibility with
660 - Deprecate BaseException.message as per PEP 352.
662 - Bug #1303614: don't expose object's __dict__ when the dict is
663 inherited from a builtin base.
665 - When __slots__ are set to a unicode string, make it work the same as
666 setting a plain string, ie don't expand to single letter identifiers.
668 - Request #1191699: Slices can now be pickled.
670 - Request #1193128: str.translate() now allows a None argument for
671 translations that only remove characters without re-mapping the
672 remaining characters.
674 - Patch #1682205: a TypeError while unpacking an iterable is no longer
675 masked by a generic one with the message "unpack non-sequence".
677 - Remove unused file Python/fmod.c.
679 - Bug #1683368: The object.__init__() and object.__new__() methods are
680 now stricter in rejecting excess arguments. The only time when
681 either allows excess arguments is when it is not overridden and the
682 other one is. For backwards compatibility, when both are
683 overridden, it is a deprecation warning (for now; maybe a Py3k
684 warning later). Also, type.__init__() insists on the same signature
685 as supported by type.__new__().
687 - Patch #1675423: PyComplex_AsCComplex() now tries to convert an object
688 to complex using its __complex__() method before falling back to the
689 __float__() method. Therefore, the functions in the cmath module now
690 can operate on objects that define a __complex__() method.
692 - Patch #1623563: allow __class__ assignment for classes with __slots__.
693 The old and the new class are still required to have the same slot names.
695 - Patch #1642547: Fix an error/crash when encountering syntax errors in
696 complex if statements.
698 - Patch #1462488: Python no longer segfaults when ``object.__reduce_ex__()``
699 is called with an object that is faking its type.
701 - Patch #1680015: Don't modify __slots__ tuple if it contains an unicode
704 - Patch #1444529: the builtin compile() now accepts keyword arguments.
706 - Bug #1678647: write a newline after printing an exception in any
707 case, even when converting the value to a string failed.
709 - The dir() function has been extended to call the __dir__() method on
710 its argument, if it exists. If not, it will work like before. This allows
711 customizing the output of dir() in the presence of a __getattr__().
713 - Patch #922167: Python no longer segfaults when faced with infinitely
714 self-recursive reload() calls (as reported by bug #742342).
716 - Patch #1675981: remove unreachable code from ``type.__new__()`` method.
718 - Patch #1491866: change the complex() constructor to allow parthensized
719 forms. This means complex(repr(x)) now works instead of raising a
722 - Patch #703779: unset __file__ in __main__ after running a file. This
723 makes the filenames the warning module prints much more sensible when
724 a PYTHONSTARTUP file is used.
726 - Variant of patch #697613: don't exit the interpreter on a SystemExit
727 exception if the -i command line option or PYTHONINSPECT environment
728 variable is given, but break into the interactive interpreter just like
729 on other exceptions or normal program exit.
731 - Patch #1638879: don't accept strings with embedded NUL bytes in long().
733 - Bug #1674503: close the file opened by execfile() in an error condition.
735 - Patch #1674228: when assigning a slice (old-style), check for the
736 sq_ass_slice instead of the sq_slice slot.
738 - When printing an unraisable error, don't print exceptions. before the name.
739 This duplicates the behavior whening normally printing exceptions.
741 - Bug #1653736: Properly discard third argument to slot_nb_inplace_power.
743 - PEP 352: Raising a string exception now triggers a TypeError. Attempting to
744 catch a string exception raises DeprecationWarning.
746 - Bug #1377858: Fix the segfaulting of the interpreter when an object created
747 a weakref on itself during a __del__ call for new-style classes (classic
748 classes still have the bug).
750 - Bug #1579370: Make PyTraceBack_Here use the current thread, not the
751 frame's thread state.
753 - patch #1630975: Fix crash when replacing sys.stdout in sitecustomize.py
755 - Prevent seg fault on shutdown which could occur if an object
758 - Bug #1566280: Explicitly invoke threading._shutdown from Py_Main,
759 to avoid relying on atexit.
761 - Bug #1590891: random.randrange don't return correct value for big number
763 - Patch #1586791: Better exception messages for some operations on strings,
766 - Bug #1067760: Deprecate passing floats to file.seek.
768 - Bug #1591996: Correctly forward exception in instance_contains().
770 - Bug #1588287: fix invalid assertion for `1,2` in debug builds.
772 - Bug #1576657: when setting a KeyError for a tuple key, make sure that
773 the tuple isn't used as the "exception arguments tuple".
775 - Bug #1565514, SystemError not raised on too many nested blocks.
777 - Bug #1576174: WindowsError now displays the windows error code
778 again, no longer the posix error code.
780 - Patch #1549049: Support long values in structmember, issue warnings
781 if the assigned value for structmember fields gets truncated.
783 - Update the peephole optimizer to remove more dead code (jumps after returns)
784 and inline unconditional jumps to returns.
786 - Bug #1545497: when given an explicit base, int() did ignore NULs
787 embedded in the string to convert.
789 - Bug #1569998: break inside a try statement (outside a loop) is now
790 recognized and rejected.
792 - list.pop(x) accepts any object x following the __index__ protocol.
794 - A number of places, including integer negation and absolute value,
795 were fixed to not rely on undefined behaviour of the C compiler
798 - Bug #1566800: make sure that EnvironmentError can be called with any
799 number of arguments, as was the case in Python 2.4.
801 - Patch #1567691: super() and new.instancemethod() now don't accept
802 keyword arguments any more (previously they accepted them, but didn't
805 - Fix a bug in the parser's future statement handling that led to "with"
806 not being recognized as a keyword after, e.g., this statement:
807 from __future__ import division, with_statement
809 - Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).
811 - Fix %zd string formatting on Mac OS X so it prints negative numbers.
813 - Allow exception instances to be directly sliced again.
815 - Bug #1551432: Exceptions do not define an explicit __unicode__ method. This
816 allows calling unicode() on exceptions classes directly to succeed.
818 - Bug #1542051: Exceptions now correctly call PyObject_GC_UnTrack.
819 Also make sure that every exception class has __module__ set to
822 - Bug #1550983: emit better error messages for erroneous relative
823 imports (if not in package and if beyond toplevel package).
825 - Overflow checking code in integer division ran afoul of new gcc
826 optimizations. Changed to be more standard-conforming.
828 - Patch #1542451: disallow continue anywhere under a finally.
830 - Patch #1546288: fix seg fault in dict_equal due to ref counting bug.
832 - The return tuple from str.rpartition(sep) is (tail, sep, head) where
833 head is the original string if sep was not found.
835 - Bug #1520864: unpacking singleton tuples in list comprehensions and
836 generator expressions (x for x, in ... ) works again. Fixing this problem
837 required changing the .pyc magic number. This means that .pyc files
838 generated before 2.5c2 will be regenerated.
840 - ``with`` and ``as`` are now keywords.
842 - Bug #1664966: Fix crash in exec if Unicode filename can't be decoded.
844 - Issue #1537: Changed GeneratorExit's base class from Exception to
847 - Fix Issue #1703448: A joined thread could show up in the
848 threading.enumerate() list after the join() for a brief period until
855 - #2274 Add heapq.heappushpop().
857 - Add inspect.isabstract(object) to fix bug #2223
859 - Add a __format__ method to Decimal, to support PEP 3101.
861 - Add a timing parameter when using trace.Trace to print out timestamps.
863 - #1627: httplib now ignores negative Content-Length headers.
865 - #900744: If an invalid chunked-encoding header is sent by a server,
866 httplib will now raise IncompleteRead and close the connection instead
867 of raising ValueError.
869 - #1492: The content type of BaseHTTPServer error messages can now be
872 - Issue 1781: ConfigParser now does not let you add the "default" section
875 - Removed uses of dict.has_key() from distutils, and uses of
876 callable() from copy_reg.py, so the interpreter now starts up
877 without warnings when '-3' is given. More work like this needs to
878 be done in the rest of the stdlib.
880 - Issue #1916. Added isgenerator() and isgeneratorfunction() to inspect.py.
882 - #1224: Fixed bad url parsing when path begins with double slash.
884 - ctypes instances that are not or do not contain pointers can now be
887 - Patch #1966: Break infinite loop in httplib when the servers
888 implements the chunked encoding incorrectly.
890 - Rename rational.py to fractions.py and the rational.Rational class
891 to fractions.Fraction, to avoid the name clash with the abstract
892 base class numbers.Rational. See discussion in issue #1682.
894 - The pickletools module now provides an optimize() function
895 that eliminates unused PUT opcodes from a pickle string.
897 - #2021: Allow tempfile.NamedTemporaryFile and SpooledTemporaryFile
898 to be used in with statements by correctly supporting the context
901 - #1979: Add rich comparisons to Decimal, and make Decimal comparisons
902 involving a NaN follow the IEEE 754 standard.
904 - #2004: tarfile.py: Use mode 0700 for temporary directories and default
905 permissions for missing directories.
907 - #175006: The debugger used to skip the condition of a "while" statement
908 after the first iteration. Now it correctly steps on the expression, and
909 breakpoints on the "while" statement are honored on each loop.
911 - #1765140: add an optional delay argument to FileHandler and its
912 subclasses. Defaults to false (existing behaviour), but if true,
913 defers opening the file until the first call to emit().
915 - The pprint module now supports sets and frozensets.
917 - #1221598: add optional callbacks to ftplib.FTP's storbinary() and
918 storlines() methods. (Contributed by Phil Schwartz)
920 - #1715: include sub-extension modules in pydoc's text output.
922 - #1836: fix an off-by-one bug in TimedRotatingHandler's rollover
925 - #1021: fix a bug to allow basicConfig to accept NOTSET as a level.
927 - #932563: add LoggerAdapter convenience class to make it easier to add
928 contextual information in logging output.
930 - #1760556: fix a bug to avoid FileHandler throwing an exception in
933 - Bug #1530959: distutils' build command now uses different build directory
934 when building extension modules against versions of Python compiled
935 with ``--with-pydebug``.
937 - #1555501: move plistlib from plat-mac directory to general library.
939 - #1269: fix a bug in pstats.add_callers() and add a unit test file for
942 - #1669: don't allow shutil.rmtree() to be called on a symlink to a
945 - #1664522: in urllib, don't read non-existing directories in ftp mode,
946 returning a 0-byte file -- raise an IOError instead.
948 - #856047: respect the ``no_proxy`` environment variable when using the
949 ``http_proxy`` etc. environment variables in urllib.
951 - #1178141: add a getcode() method to the addinfourls that urllib.open()
952 returns so that you can retrieve the HTTP status code.
954 - Issue #1003: Fix zipfile decryption check, it would fail zip files
955 with extended local headers.
957 - #1189216: Fix the zipfile module to work on archives with headers
958 past the 2**31 byte boundary.
960 - #1336: fix a race condition in subprocess.Popen if the garbage
961 collector kicked in at the wrong time that would cause the process
962 to hang when the child wrote to stderr.
964 - #1146: fix how textwrap breaks a long word that would start in the
965 last column of a line.
967 - #1693149: trace.py --ignore-module - accept multiple comma-separated
970 - #1822: MIMEMultipart.is_multipart() behaves correctly for a just-created
971 (and empty) instance. Thanks Jonathan Share.
973 - #1861: Added an attribute to the sched module which returns an ordered
974 list of upcoming events (displayed as named tuples).
976 - #1837: The queue module now also supports a LIFO queue and a priority queue.
978 - Patch #1048820: Add insert-mode editing to curses.textpad.Textbox
979 (patch by Stefan Wehr). Also, fix an off-by-one bug in
982 - Issue #1831: ctypes now raises a TypeError if conflicting positional
983 and named arguments are passed to a Structure or Union initializer.
984 When too many positional arguments are passed, also a TypeError is
985 raised instead of a ValueError.
987 - Convert the internal ctypes array type cache to a WeakValueDict so
988 that array types do not live longer than needed.
990 - Issue #1786: pdb should use its own stdin/stdout around an exec call
991 and when creating a recursive instance.
993 - Issue #1698398 Zipfile.printdir() crashed because the format string
994 expected a tuple type of length six instead of time.struct_time object.
996 - Issue #1780: The Decimal constructor now accepts arbitrary leading
997 and trailing whitespace when constructing from a string.
998 Context.create_decimal no longer accepts trailing newlines.
1000 - Decimal.as_tuple(), difflib.find_longest_match() and inspect functions
1001 that returned a tuple now return a named tuple.
1003 - Doctest now returns results as a named tuple for readability:
1004 (0, 7) --> TestResults(failed=0, attempted=7)
1006 - Issue #846388. re.match is interruptible now, which is particularly
1007 good for long regular expression matches.
1009 - pyexpat, patch #1137: allow setting buffer_size attribute
1010 on Parser objects to set the character data buffer size.
1012 - Issue #1757: The hash of a Decimal instance is no longer affected by
1013 the current context.
1015 - Patch #467924: add ZipFile.extract() and ZipFile.extractall() in the
1018 - Issue #1646: Make socket support the TIPC protocol.
1020 - Bug #1742: return os.curdir from os.path.relpath() if both arguments are
1021 equal instead of raising an exception.
1023 - Patch #1637: fix urlparse for URLs like 'http://x.com?arg=/foo'.
1025 - Patch #1698: allow '@' in username parsed by urlparse.py.
1027 - Issue #1735: TarFile.extractall() now correctly sets directory permissions
1030 - Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a mountpoint.
1032 - Bug #1687: Fxed plistlib.py restricts <integer> to Python int when writing
1034 - Issue #1700: Regular expression inline flags incorrectly handle certain
1037 - Issue #1689: PEP 3141, numeric abstract base classes.
1039 - Tk issue #1851526: Return results from Python callbacks to Tcl as
1042 - Issue #1642: Fix segfault in ctypes when trying to delete attributes.
1044 - Issue #1727780: Support loading pickles of random.Random objects created
1045 on 32-bit systems on 64-bit systems, and vice versa. As a consequence
1046 of the change, Random pickles created by Python 2.6 cannot be loaded
1049 - Issue #1455: The distutils package now supports VS 2005 and VS 2008 for
1050 both the msvccompiler and cygwincompiler.
1052 - Issue #1531: tarfile.py: Read fileobj from the current offset, do not
1055 - Issue #1534: Added a dictionary sys.float_info with information about the
1056 internal floating point type to the sys module.
1058 - Issue 1429818: patch for trace and doctest modules so they play nicely
1061 - doctest made a bad assumption that a package's __loader__.get_data()
1062 method used universal newlines.
1064 - Issue #1705170: contextlib.contextmanager was still swallowing
1065 StopIteration in some cases. This should no longer happen.
1067 - Issue #1292: On alpha, arm, ppc, and s390 linux systems the
1068 --with-system-ffi configure option defaults to "yes".
1070 - IN module for FreeBSD 8 is added and preexisting FreeBSD 6 and 7
1073 - Issues #1181, #1287: unsetenv() is now called when the os.environ.pop()
1074 and os.environ.clear() methods are used.
1076 - ctypes will now work correctly on 32-bit systems when Python is
1077 configured with --with-system-ffi.
1079 - Patch #1203: ctypes now does work on OS X when Python is built with
1080 --disable-toolbox-glue.
1082 - collections.deque() now supports a "maxlen" argument.
1084 - itertools.count() is no longer bounded to LONG_MAX. Formerly, it raised
1085 an OverflowError. Now, automatically shifts from ints to longs.
1087 - Added itertools.product() which forms the Cartesian product of
1088 the input iterables.
1090 - Added itertools.combinations() and itertools.permutations().
1092 - Patch #1541463: optimize performance of cgi.FieldStorage operations.
1094 - Decimal is fully updated to the latest Decimal Specification (v1.66).
1096 - Bug #1153: repr.repr() now doesn't require set and dictionary items
1097 to be orderable to properly represent them.
1099 - A 'c_longdouble' type was added to the ctypes module.
1101 - Bug #1709599: Run test_1565150 only if the file system is NTFS.
1103 - When encountering a password-protected robots.txt file the RobotFileParser
1104 no longer prompts interactively for a username and password (bug 813986).
1106 - TarFile.__init__() no longer fails if no name argument is passed and
1107 the fileobj argument has no usable name attribute (e.g. StringIO).
1109 - The functools module now provides 'reduce', for forward compatibility
1112 - Server-side SSL support and cert verification added, by Bill Janssen.
1114 - socket.ssl deprecated; use new ssl module instead.
1116 - uuid creation is now threadsafe.
1118 - EUC-KR codec now handles the cheot-ga-keut composed make-up hangul
1121 - GB18030 codec now can encode additional two-byte characters that
1124 - Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
1126 - Bug #1704793: Return UTF-16 pair if unicodedata.lookup cannot
1127 represent the result in a single character.
1129 - Bug #978833: Close https sockets by releasing the _ssl object.
1131 - Change location of the package index to pypi.python.org/pypi
1133 - Bug #1701409: Fix a segfault in printing ctypes.c_char_p and
1134 ctypes.c_wchar_p when they point to an invalid location. As a
1135 sideeffect the representation of these instances has changed.
1137 - tarfile.py: Added "exclude" keyword argument to TarFile.add().
1139 - Bug #1734723: Fix repr.Repr() so it doesn't ignore the maxtuple attribute.
1141 - The urlopen function of urllib2 now has an optional timeout parameter (note
1142 that it actually works with HTTP, HTTPS, FTP and FTPS connections).
1144 - In ftplib, the FTP.ntransfercmd method, when in passive mode, now uses
1145 the socket.create_connection function, using the timeout specified at
1148 - Bug #1728403: Fix a bug that CJKCodecs StreamReader hangs when it
1149 reads a file that ends with incomplete sequence and sizehint argument
1150 for .read() is specified.
1152 - Bug #1730389: Change time.strptime() to use ``\s+`` instead of ``\s*`` when
1153 matching spaces in the specified format argument.
1155 - SF 1668596/1720897: distutils now copies data files
1156 even if package_dir is empty.
1158 - sha now raises a DeprecationWarning upon import.
1160 - md5 now raises a DeprecationWarning upon import.
1162 - Issue1385: The hmac module now computes the correct hmac when using hashes
1163 with a block size other than 64 bytes (such as sha384 and sha512).
1165 - mimify now raises a DeprecationWarning upon import.
1167 - MimeWriter now raises a DeprecationWarning upon import.
1169 - tarfile.py: Improved unicode support. Unicode input names are now
1170 officially supported. Added "errors" argument to the TarFile class.
1172 - urllib.ftpwrapper class now accepts an optional timeout.
1174 - shlex.split() now has an optional "posix" parameter.
1176 - The posixfile module now raises a DeprecationWarning.
1178 - Remove the gopherlib module. This also leads to the removal of gopher
1179 support in urllib/urllib2.
1181 - Fix bug in marshal where bad data would cause a segfault due to
1182 lack of an infinite recursion check.
1184 - Removed plat-freebsd2 and plat-freebsd3 directories (and IN.py in
1187 - HTML-escape the plain traceback in cgitb's HTML output, to prevent
1188 the traceback inadvertently or maliciously closing the comment and
1189 injecting HTML into the error page.
1191 - The popen2 module and os.popen* are deprecated. Use the subprocess module.
1193 - Added an optional credentials argument to SMTPHandler, for use with SMTP
1194 servers which require authentication.
1196 - Patch #1695948: Added optional timeout parameter to SocketHandler.
1198 - Bug #1652788: Minor fix for currentframe.
1200 - Patch #1598415: Added WatchedFileHandler to better support external
1201 log file rotation using e.g. newsyslog or logrotate. This handler is
1202 only useful in Unix/Linux environments.
1204 - Bug #1706381: Specifying the SWIG option "-c++" in the setup.py file
1205 (as opposed to the command line) will now write file names ending in
1208 - As specified in RFC 2616, an HTTP response like 2xx indicates that
1209 the client's request was successfully received, understood, and accepted.
1210 Now in these cases no error is raised in urllib (issue #1177) and urllib2.
1212 - Bug #1290505: time.strptime's internal cache of locale information is now
1213 properly recreated when the locale is changed.
1215 - Patch #1685563: remove (don't add) duplicate paths in distutils.MSVCCompiler.
1217 - Added a timeout parameter to the constructor of other protocols
1218 (telnetlib, ftplib, smtplib and poplib). This is second part of the
1219 work started with create_connection() and timeout in httplib, and
1220 closes patch #723312.
1222 - Patch #1676823: Added create_connection() to socket.py, which may be
1223 called with a timeout, and use it from httplib (whose HTTPConnection
1224 and HTTPSConnection now accept an optional timeout).
1226 - Bug #978833: Revert r50844, as it broke _socketobject.dup.
1228 - Bug #1675967: re patterns pickled with Python 2.4 and earlier can
1229 now be unpickled with Python 2.5 and newer.
1231 - Patch #1630118: add a SpooledTemporaryFile class to tempfile.py.
1233 - Patch #1273829: os.walk() now has a "followlinks" parameter. If set to
1234 True (which is not the default), it visits symlinks pointing to
1237 - Bug #1681228: the webbrowser module now correctly uses the default
1238 GNOME or KDE browser, depending on whether there is a session of one
1239 of those present. Also, it tries the Windows default browser before
1240 trying Mozilla variants.
1242 - Patch #1339796: add a relpath() function to os.path.
1244 - Patch #1681153: the wave module now closes a file object it opened if
1245 initialization failed.
1247 - Bug #767111: fix long-standing bug in urllib which caused an
1248 AttributeError instead of an IOError when the server's response didn't
1249 contain a valid HTTP status line.
1251 - Patch #957650: "%var%" environment variable references are now properly
1252 expanded in ntpath.expandvars(), also "~user" home directory references
1253 are recognized and handled on Windows.
1255 - Patch #1429539: pdb now correctly initializes the __main__ module for
1256 the debugged script, which means that imports from __main__ work
1259 - The nonobvious commands.getstatus() function is now deprecated.
1261 - Patch #1393667: pdb now has a "run" command which restarts the debugged
1262 Python program, optionally with different arguments.
1264 - Patch #1649190: Adding support for _Bool to ctypes as c_bool.
1266 - Patch #1530482: add pydoc.render_doc() which returns the documentation
1267 for a thing instead of paging it to stdout, which pydoc.doc() does.
1269 - Patch #1533909: the timeit module now accepts callables in addition to
1270 strings for the code to time and the setup code. Also added two
1271 convenience functions for instantiating a Timer and calling its methods.
1273 - Patch #1537850: tempfile.NamedTemporaryFile now has a "delete" parameter
1274 which can be set to False to prevent the default delete-on-close
1277 - Patch #1581073: add a flag to textwrap that prevents the dropping of
1278 whitespace while wrapping.
1280 - Patch #1603688: ConfigParser.SafeConfigParser now checks values that
1281 are set for invalid interpolation sequences that would lead to errors
1282 on reading back those values.
1284 - Added support for the POSIX.1-2001 (pax) format to tarfile.py. Extended
1285 and cleaned up the test suite. Added a new testtar.tar.
1287 - Patch #1449244: Support Unicode strings in
1288 email.message.Message.{set_charset,get_content_charset}.
1290 - Patch #1542681: add entries for "with", "as" and "CONTEXTMANAGERS" to
1291 pydoc's help keywords.
1293 - Patch #1555098: use str.join() instead of repeated string
1294 concatenation in robotparser.
1296 - Patch #1635454: the csv.DictWriter class now includes the offending
1297 field names in its exception message if you try to write a record with
1298 a dictionary containing fields not in the CSV field names list.
1300 - Patch #1668100: urllib2 now correctly raises URLError instead of
1301 OSError if accessing a local file via the file:// protocol fails.
1303 - Patch #1677862: Require a space or tab after import in .pth files.
1305 - Patch #1192590: Fix pdb's "ignore" and "condition" commands so they trap
1306 the IndexError caused by passing in an invalid breakpoint number.
1308 - Patch #1599845: Add an option to disable the implicit calls to server_bind()
1309 and server_activate() in the constructors for TCPServer, SimpleXMLRPCServer
1310 and DocXMLRPCServer.
1312 - Bug #1531963: Make SocketServer.TCPServer's server_address always
1313 be equal to calling getsockname() on the server's socket. Fixed by
1316 - Patch #742598: Add .timeout attribute to SocketServer that calls
1317 .handle_timeout() when no requests are received.
1319 - Bug #1651235: When a tuple was passed to a ctypes function call,
1320 Python would crash instead of raising an error.
1322 - Bug #1646630: ctypes.string_at(buf, 0) and ctypes.wstring_at(buf, 0)
1323 returned string up to the first NUL character.
1325 - Patch #957003: Implement smtplib.LMTP.
1327 - Patch #1481079: add support for HTTP_REFERER to CGIHTTPServer.
1329 - Patch #1675424: Added tests for uncovered code in the zipfile module.
1330 The KeyError raised by Zipfile.getinfo for nonexistent names now has
1331 a descriptive message.
1333 - Bug #1115886: os.path.splitext('.cshrc') gives now ('.cshrc', '').
1335 - unittest now verifies more of its assumptions. In particular, TestCase
1336 and TestSuite subclasses (not instances) are no longer accepted in
1337 TestSuite.addTest(). This should cause no incompatibility since it
1338 never made sense with ordinary subclasses -- the failure just occurred
1339 later, with a more cumbersome exception.
1341 - Patch #787789: allow to pass custom TestRunner instances to unittest's
1344 - Patches #1550273, #1550272: fix a few bugs in unittest and add a
1345 comprehensive test suite for the module.
1347 - Patch #1001604: glob.glob() now returns unicode filenames if it was
1348 given a unicode argument and os.listdir() returns unicode filenames.
1350 - Patch #1673619: setup.py identifies extension modules it doesn't know how
1351 to build and those it knows how to build but that fail to build.
1353 - Patch #912410: Replace HTML entity references for attribute values
1356 - Patch #1663234: you can now run doctest on test files and modules
1357 using "python -m doctest [-v] filename ...".
1359 - Patch #1121142: Implement ZipFile.open.
1361 - Taught setup.py how to locate Berkeley DB on Macs using MacPorts.
1363 - Added heapq.merge() for merging sorted input streams.
1365 - Added collections.namedtuple() for assigning field names to tuples.
1367 - Added itertools.izip_longest().
1369 - Have the encoding package's search function dynamically import using absolute
1372 - Patch #1647484: Renamed GzipFile's filename attribute to name.
1374 - Patch #1517891: Mode 'a' for ZipFile now creates the file if it
1377 - Patch #698833: Support file decryption in zipfile.
1379 - Patch #685268: Consider a package's __path__ in imputil.
1381 - Patch 1463026: Support default namespace in XMLGenerator.
1383 - Patch 1571379: Make trace's --ignore-dir facility work in the face of
1384 relative directory names.
1386 - Bug #1600860: Search for shared python library in LIBDIR,
1387 not lib/python/config, on "linux" and "gnu" systems.
1389 - Patch #1652681: tarfile.py: create nonexistent files in append mode and
1390 allow appending to empty files.
1392 - Bug #1124861: Automatically create pipes if GetStdHandle fails in
1395 - Patch #1634778: add missing encoding aliases for iso8859_15 and
1398 - Patch #1638243: the compiler package is now able to correctly compile
1399 a with statement; previously, executing code containing a with statement
1400 compiled by the compiler package crashed the interpreter.
1402 - Bug #1643943: Fix time.strptime's support for the %U directive.
1404 - Patch #1507247: tarfile.py: use current umask for intermediate
1407 - Patch #1627441: close sockets properly in urllib2.
1409 - Bug #494589: make ntpath.expandvars behave according to its docstring.
1411 - Changed platform module API python_version_tuple() to actually
1412 return a tuple (it used to return a list).
1414 - Added new platform module APIs python_branch(), python_revision(),
1415 python_implementation() and linux_distribution().
1417 - Added support for IronPython and Jython to the platform module.
1419 - The sets module has been deprecated. Use the built-in set/frozenset types
1422 - Bug #1610795: make ctypes.util.find_library work on BSD systems.
1424 - Fixes for 64-bit Windows: In ctypes.wintypes, correct the
1425 definitions of HANDLE, WPARAM, LPARAM data types. Make
1426 parameterless foreign function calls work.
1428 - The version number of the ctypes package changed to "1.1.0".
1430 - Bug #1627575: logging: Added _open() method to FileHandler which can
1431 be used to reopen files. The FileHandler instance now saves the
1432 encoding (which can be None) in an attribute called "encoding".
1434 - Bug #411881: logging.handlers: bare except clause removed from
1435 SMTPHandler.emit. Now, only ImportError is trapped.
1437 - Bug #411881: logging.handlers: bare except clause removed from
1438 SocketHandler.createSocket. Now, only socket.error is trapped.
1440 - Bug #411881: logging: bare except clause removed from LogRecord.__init__.
1441 Now, only ValueError, TypeError and AttributeError are trapped.
1443 - Patch #1504073: Fix tarfile.open() for mode "r" with a fileobj argument.
1445 - Patch #1182394 from Shane Holloway: speed up HMAC.hexdigest.
1447 - Patch #1262036: Prevent TarFiles from being added to themselves under
1450 - Patch #1230446: tarfile.py: fix ExFileObject so that read() and tell()
1451 work correctly together with readline().
1453 - Patch #1484695: The tarfile module now raises a HeaderError exception
1454 if a buffer given to frombuf() is invalid.
1456 - Bug #1503765: Fix a problem in logging.config with spaces in comma-
1457 separated lists read from logging config files.
1459 - Patch #1604907: Fix problems in logging.handlers caused at logging shutdown
1460 when syslog handlers fail to initialize because of syslogd problems.
1462 - Patch #1608267: fix a race condition in os.makedirs() if the directory
1463 to be created is already there.
1465 - Patch #1610437: fix a tarfile bug with long filename headers.
1467 - Patch #1371075: Make ConfigParser accept optional dict type
1468 for ordering, sorting, etc.
1470 - Bug #1563807: _ctypes built on AIX fails with ld ffi error.
1472 - Bug #1598620: A ctypes Structure cannot contain itself.
1474 - Patch #1070046: Marshal new-style objects like InstanceType
1477 - cStringIO.truncate(-1) now raises an IOError, like StringIO and
1480 - Patch #1472877: Fix Tix subwidget name resolution.
1482 - Patch #1594554: Always close a tkSimpleDialog on ok(), even
1483 if an exception occurs.
1485 - Patch #1538878: Don't make tkSimpleDialog dialogs transient if
1486 the parent window is withdrawn.
1488 - Bug #1597824: return the registered function from atexit.register()
1489 to facilitate usage as a decorator.
1491 - Patch #1360200: Use unmangled_version RPM spec field to deal with
1494 - Patch #1359217: Process 2xx response in an ftplib transfer
1495 that precedes an 1xx response.
1497 - Patch #1355023: support whence argument for GzipFile.seek.
1499 - Patch #1065257: Support passing open files as body in
1500 HTTPConnection.request().
1502 - Bug #1569790: mailbox.py: Maildir.get_folder() and MH.get_folder()
1503 weren't passing the message factory on to newly created Maildir/MH
1506 - Patch #1514543: mailbox.py: In the Maildir class, report errors if there's
1507 a filename clash instead of possibly losing a message. (Patch by David
1510 - Patch #1514544: Try to ensure that messages/indexes have been physically
1511 written to disk after calling .flush() or .close(). (Patch by David
1514 - Patch #1592250: Add elide argument to Tkinter.Text.search.
1516 - Patch #838546: Make terminal become controlling in pty.fork().
1518 - Patch #1351744: Add askyesnocancel helper for tkMessageBox.
1520 - Patch #1060577: Extract list of RPM files from spec file in
1523 - Bug #1586613: fix zlib and bz2 codecs' incremental en/decoders.
1525 - Patch #1583880: fix tarfile's problems with long names and posix/
1528 - Bug #1586448: the compiler module now emits the same bytecode for
1529 list comprehensions as the builtin compiler, using the LIST_APPEND
1532 - Fix codecs.EncodedFile which did not use file_encoding in 2.5.0, and
1533 fix all codecs file wrappers to work correctly with the "with"
1534 statement (bug #1586513).
1536 - Lib/modulefinder.py now handles absolute and relative imports
1539 - Patch #1567274: Support SMTP over TLS.
1541 - Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that
1542 ctypes isn't considered as requiring executable stacks.
1544 - ctypes callback functions only support 'fundamental' data types as
1545 result type. Raise an error when something else is used. This is a
1546 partial fix for Bug #1574584.
1548 - Fix turtle so that time.sleep is imported for the entire library. Allows
1549 the demo2 function to be executed on its own instead of only when the
1550 module is run as a script.
1552 - Bug #813342: Start the IDLE subprocess with -Qnew if the parent
1553 is started with that option.
1555 - Bug #1565150: Fix subsecond processing for os.utime on Windows.
1557 - Support for MSVC 8 was added to bdist_wininst.
1559 - Bug #1446043: correctly raise a LookupError if an encoding name given
1560 to encodings.search_function() contains a dot.
1562 - Bug #1560617: in pyclbr, return full module name not only for classes,
1563 but also for functions.
1565 - Bug #1457823: cgi.(Sv)FormContentDict's constructor now takes
1566 keep_blank_values and strict_parsing keyword arguments.
1568 - Bug #1566602: correct failure of posixpath unittest when $HOME ends
1571 - Bug #1565661: in webbrowser, split() the command for the default
1572 GNOME browser in case it is a command with args.
1574 - Made the error message for time.strptime when the data data and format do
1575 match be more clear.
1577 - Fix a bug in traceback.format_exception_only() that led to an error
1578 being raised when print_exc() was called without an exception set.
1579 In version 2.4, this printed "None", restored that behavior.
1581 - Make webbrowser.BackgroundBrowser usable in Windows (it wasn't because
1582 the close_fds arg to subprocess.Popen is not supported).
1584 - Reverted patch #1504333 to sgmllib because it introduced an infinite loop.
1586 - Patch #1553314: Fix the inspect.py slowdown that was hurting IPython & SAGE
1587 by adding smarter caching in inspect.getmodule()
1589 - Fix missing import of the types module in logging.config.
1591 - Patch #1550886: Fix decimal module context management implementation
1592 to match the localcontext() example from PEP 343.
1594 - Bug #1545341: The 'classifier' keyword argument to the Distutils setup()
1595 function now accepts tuples as well as lists.
1597 - Bug #1541863: uuid.uuid1 failed to generate unique identifiers
1598 on systems with low clock resolution.
1600 - Bug #1531862: Do not close standard file descriptors in subprocess.
1602 - idle: Honor the "Cancel" action in the save dialog (Debian bug #299092).
1604 - Fix utf-8-sig incremental decoder, which didn't recognise a BOM when the
1605 first chunk fed to the decoder started with a BOM, but was longer than 3
1608 - The implementation of UnicodeError objects has been simplified (start and end
1609 attributes are now stored directly as Py_ssize_t members).
1611 - Issue829951: In the smtplib module, SMTP.starttls() now complies with
1612 RFC 3207 and forgets any knowledge obtained from the server not obtained
1613 from the TLS negotiation itself. Patch contributed by Bill Fenner.
1615 - Issue1339: The smtplib.SMTP class has been refactored a bit such
1616 that the SMTP.starttls() caller no longer needs to call ehlo()
1617 beforehand. SMTP.starttls() now raises an exception of the server
1618 does not claim to support starttls. Adds the SMTP.ehlo_or_helo_if_needed()
1619 method. Patch contributed by Bill Fenner.
1621 - Patch #1089358: Add signal.siginterrupt, a wrapper around siginterrupt(3).
1626 - Patch #1657: added select.epoll and select.kqueue
1628 - Patch #1506171: added operator.methodcaller().
1630 - Patch #1826: operator.attrgetter() now supports dotted attribute paths.
1632 - Patch #1957: syslogmodule: Release GIL when calling syslog(3)
1634 - #2112: mmap.error is now a subclass of EnvironmentError and not a
1635 direct EnvironmentError
1637 - Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ
1639 - #2063: correct order of utime and stime in os.times() result on Windows.
1641 - Patch #1736: Fix file name handling of _msi.FCICreate.
1643 - Updated ``big5hkscs`` codec to the HKSCS revision of 2004.
1645 - #1940: make it possible to use curses.filter() before curses.initscr()
1646 as the documentation says.
1648 - Backport of _fileio module from Python 3.0.
1650 - #1087741: mmap.mmap is now a class, not a factory function. It is also
1653 - Patch #1648: added ``sys.getprofile()`` and ``sys.gettrace()``.
1655 - Patch #1663329: added ``os.closerange()`` function to quickly close a range
1656 of file descriptors without considering errors.
1658 - Patch 976880: ``mmap`` objects now have an ``rfind`` method that
1659 works as expected. ``mmap.find`` also takes an optional ``end``
1662 - _winreg's HKEY object has gained __enter__ and __exit__ methods to support
1663 the context manager protocol. The _winreg module also gained a new function
1664 ``ExpandEnvironmentStrings`` to expand REG_EXPAND_SZ keys.
1666 - itertools.starmap() now accepts any iterable input. Previously, it required
1667 the function inputs to be tuples.
1669 - itertools.chain() now has an alternate constructor, chain.from_iterable().
1671 - Issue #1646: Make socket support TIPC. The socket module now has support
1672 for TIPC under Linux, see http://tipc.sf.net/ for more information.
1674 - Added interface for Windows' WSAIoctl to socket object and added an example
1675 for a simple network sniffer.
1677 - Bug #1301: Bad assert in _tkinter fixed.
1679 - Added bdist_wininst executable for VS 2008.
1681 - Bug #1604: collections.deque.__init__(iterable) now clears any prior contents
1682 before adding elements from the iterable. This fix brings the behavior into
1683 line with that for list.__init__().
1685 - Added wide char functions to msvcrt module: getwch, getwche, putwch and
1686 ungetwch. The functions accept or return unicode.
1688 - os.access now returns True on Windows for any existing directory.
1690 - Added warnpy3k function to the warnings module.
1692 - Marshal.dumps() now expects exact type matches for int, long, float, complex,
1693 tuple, list, dict, set, and frozenset. Formerly, it would silently miscode
1694 subclasses of those types. Now, it raises a ValueError instead.
1696 - Patch #1388440: Add set_completion_display_matches_hook and
1697 get_completion_type to readline.
1699 - Bug #1649098: Avoid declaration of zero-sized array declaration in
1702 - Removed the rgbimg module; been deprecated since Python 2.5.
1704 - Bug #1721309: prevent bsddb module from freeing random memory.
1706 - Bug #1233: fix bsddb.dbshelve.DBShelf append method to work as
1707 intended for RECNO databases.
1709 - pybsddb.sf.net Bug #477182: Load the database flags at database open
1710 time so that opening a database previously created with the DB_DUP or
1711 DB_DUPSORT flag set will keep the proper behavior on subsequent opens.
1712 Specifically: dictionary assignment to a DB object will replace all
1713 values for a given key when the database allows duplicate values.
1714 DB users should use DB.put(k, v) when they want to store duplicates; not
1717 - Add the bsddb.db.DBEnv.lock_id_free method.
1719 - Bug #1686475: Support stat'ing open files on Windows again.
1721 - Patch #1185447: binascii.b2a_qp() now correctly quotes binary characters
1722 with ASCII value less than 32. Also, it correctly quotes dots only if
1723 they occur on a single line, as opposed to the previous behavior of
1724 quoting dots if they are the second character of any line.
1726 - Bug #1622896: fix a rare corner case where the bz2 module raised an
1727 error in spite of a succesful compression.
1729 - Patch #1654417: make operator.{get,set,del}slice use the full range
1732 - Patch #1646728: datetime.fromtimestamp fails with negative
1733 fractional times. With unittest.
1735 - Patch #1490190: posixmodule now includes os.chflags() and os.lchflags()
1736 functions on platforms where the underlying system calls are available.
1738 - Patch #1494140: Add documentation for the new struct.Struct object.
1740 - Patch #1432399: Support the HCI protocol for bluetooth sockets
1742 - Patch #1657276: Make NETLINK_DNRTMSG conditional.
1744 - Bug #1653736: Complain about keyword arguments to time.isoformat.
1746 - Bug #1486663: don't reject keyword arguments for subclasses of builtin
1749 - Patch #1610575: The struct module now supports the 't' code, for
1752 - Patch #1635058: ensure that htonl and friends never accept or
1753 return negative numbers, per the underlying C implementation.
1755 - Patch #1544279: Improve thread-safety of the socket module by moving
1756 the sock_addr_t storage out of the socket object.
1758 - Patch #1019808: fix bug that causes an incorrect error to be returned
1759 when a socket timeout is set and a connection attempt fails.
1761 - Speed up function calls into the math module.
1763 - Bug #1588217: don't parse "= " as a soft line break in binascii's
1764 a2b_qp() function, instead leave it in the string as quopri.decode()
1767 - Bug #1599782: Fix segfault on bsddb.db.DB().type().
1769 - Bug #1567666: Emulate GetFileAttributesExA for Win95.
1771 - Patch #1576166: Support os.utime for directories on Windows NT+.
1773 - Patch #1572724: fix typo ('=' instead of '==') in _msi.c.
1775 - Bug #1572832: fix a bug in ISO-2022 codecs which may cause segfault
1776 when encoding non-BMP unicode characters.
1778 - Bug #1556784: allow format strings longer than 127 characters in
1779 datetime's strftime function.
1781 - Fix itertools.count(n) to work with negative numbers again.
1783 - RLIMIT_SBSIZE was added to the resource module where available.
1785 - Bug #1551427: fix a wrong NULL pointer check in the win32 version
1788 - Bug #1548092: fix curses.tparm seg fault on invalid input.
1790 - Patch #1114: fix curses module compilation on 64-bit AIX, & possibly
1791 other 64-bit LP64 platforms where attr_t is not the same size as a long.
1792 (Contributed by Luke Mewburn.)
1794 - Bug #1550714: fix SystemError from itertools.tee on negative value for n.
1796 - Fixed a few bugs on cjkcodecs:
1797 - gbk and gb18030 codec now handle U+30FB KATAKANA MIDDLE DOT correctly.
1798 - iso2022_jp_2 codec now encodes into G0 for KS X 1001, GB2312
1799 codepoints to conform the standard.
1800 - iso2022_jp_3 and iso2022_jp_2004 codec can encode JIS X 0213:2
1803 - Bug #1552726: in readline.c, avoid repeatedly polling in interactive
1804 mode by only placing a timeout on the select() if an input hook has
1805 been defined. This prevents an interactive Python from waking up 10
1806 times per second. Patch by Richard Boulton.
1808 - fixed a bug with bsddb.DB.stat: the flags and txn keyword arguments
1811 - Added support for linking the bsddb module against BerkeleyDB 4.5.x
1814 - Bug #1633621: if curses.resizeterm() or curses.resize_term() is called,
1815 update _curses.LINES, _curses.COLS, curses.LINES and curses.COLS.
1817 - Fix an off-by-one bug in locale.strxfrm().
1819 - Fix libffi configure for hppa*-*-linux* | parisc*-*-linux*.
1821 - Build using system ffi library on arm*-linux*.
1823 - Bug #1372: zlibmodule.c: int overflow in PyZlib_decompress
1825 - bsddb module: Fix memory leak when using database cursors on
1826 databases without a DBEnv.
1828 - The sqlite3 module was updated to pysqlite 2.4.1.
1833 - Refactor test_logging to use unittest.
1835 - Refactor test_profile and test_cprofile to use the same code to profile.
1837 - Make test_runpy reentrant by fixing _check_module to clear out any module
1838 being tested. Was causing an error by __import__ doing a reload on the
1839 second run and thus suppressing bytecode recreation.
1841 - Capture socket connection resets and timeouts in test_socket_ssl and
1842 test_urllib2net and raise test.test_support.ResourceDenied.
1844 - Patch #1559413: Fix test_cmd_line if sys.executable contains a space.
1846 - Added test.test_support.TransientResource which is a context manager to
1847 surround calls to resources that are not guaranteed to work even if
1848 test.test_support.requires says that the resource should exist.
1850 - Added a test for slicing of an exception.
1852 - Added test.test_support.EnvironmentVarGuard. It's a class that provides a
1853 context manager so that one can temporarily set or unset environment
1856 - Added some tests for modulefinder.
1858 - Converted test_imp to use unittest.
1860 - Fix bsddb test_basics.test06_Transactions to check the version
1863 - test.test_support.catch_warning is a new context manager that can be used
1864 to catch the warnings issued by the warning framework.
1870 - Tools/scripts/reindent.py now creates the backup file using shutil.copy
1871 to preserve user/group and permissions. Added also a --nobackup option
1872 to not create the backup if the user is concerned regarding this. Check
1873 issue 1050828 for more details.
1875 - Tools/scripts/win_add2path.py was added. The simple script modifes the
1876 PATH environment var of the HKCU tree and adds the python bin and script
1879 - Tools/18n/pygettext.py was added to the list of scripts installed by
1880 Tools/scripts/setup.py (tracker item 642309).
1882 - Added IronPython and Jython support to pybench (part of which
1885 - Made some minor changes to pybench output to allow the user
1886 to see which Python version is running pybench
1888 - Added support for the new platform module feature
1889 platform.python_implementation(); this will now be saved
1890 in the benchmark pickle
1896 - RFE #1765140: Updated documentation on FileHandler and subclasses to
1897 include new optional delay argument.
1899 - Bug #932563: Added section on getting contextual information into logging
1900 output, and added documentation for the new LoggerAdapter class.
1902 - Bug #1295: Added information about caching of formatted exception
1903 information in the LogRecord by Formatter.format().
1905 - Bug #1637365: add subsection about "__name__ == __main__" to the
1908 - Patch #1698768: updated the "using Python on the Mac" intro.
1910 - Bug #1569057: Document that calling file.next() when the file is open for
1911 writing is undefined.
1913 - Patch #1489771: the syntax rules in Python Reference Manual were
1914 updated to reflect the current Python syntax.
1916 - Patch #1686451: Fix return type for
1917 PySequence_{Count,Index,Fast_GET_SIZE}.
1919 - Patch #1679379: add documentation for fnmatch.translate().
1921 - Bug #1629566: clarify the docs on the return values of parsedate()
1922 and parsedate_tz() in email.utils and rfc822.
1924 - Patch #1671450: add a section about subclassing builtin types to the
1925 "extending and embedding" tutorial.
1927 - Bug #1629125: fix wrong data type (int -> Py_ssize_t) in PyDict_Next
1930 - Bug #1565919: document set types in the Language Reference.
1932 - Bug #1546052: clarify that PyString_FromString(AndSize) copies the
1933 string pointed to by its parameter.
1935 - Bug #1566663: remove obsolete example from datetime docs.
1937 - Bug #1541682: Fix example in the "Refcount details" API docs.
1938 Additionally, remove a faulty example showing PySequence_SetItem applied
1939 to a newly created list object and add notes that this isn't a good idea.
1945 - Patch #1552024: add decorator support to unparse.py demo script.
1947 - Make auto-generated python.vim file list built-ins and exceptions in
1948 alphatbetical order. Makes output more deterministic and easier to tell if
1949 the file is stale or not.
1951 - Bug #1546372: Fixed small bugglet in pybench that caused a missing
1952 file not to get reported properly.
1958 - Have the search path for building extensions follow the declared order in
1959 $CPPFLAGS and $LDFLAGS when adding directories from those environment
1962 - Bug #1983: Added a check to pyport to verify that sizeof(pid_t) is
1963 smaller or equal sizeof(long).
1965 - Bug #1234: Fixed semaphore errors on AIX 5.2
1967 - Issue #1726: Remove Python/atof.c from PCBuild/pythoncore.vcproj
1969 - Removed PCbuild8/ directory and added a new build directory for VS 2005
1970 based on the VS 2008 build directory to PC/VS8.0. The script
1971 PCbuild/vs8to9.py was added to sync changes from PCbuild to PC/VS8.0.
1973 - Moved PCbuild/ directory for VS 2003 to PC/VS7.1 and renamed PCBuild9/
1974 directory to PCBuild/.
1976 - Bug #1699: Define _BSD_SOURCE only on OpenBSD.
1978 - Bug #1608: use -fwrapv when GCC supports it. This is important,
1979 newer GCC versions may optimize away overflow buffer overflow checks
1980 without this option!
1982 - Patch #1418: Make the AC_REPLACE_FUNCS object files actually work.
1984 - Add a FAST_LOOPS build option that speeds-up looping by trading away
1985 periodic threadstate and signal checking in tight loops. By default,
1986 this option is turned-off. It should only be enabled in debugged,
1987 performance critical applications.
1989 - Patch #786737: Allow building in a tree of symlinks pointing to
1992 - Bug #1737210: Change Manufacturer of Windows installer to PSF.
1994 - Bug #1746880: Correctly install DLLs into system32 folder on Win64.
1996 - Define _BSD_SOURCE, to get access to POSIX extensions on OpenBSD 4.1+.
1998 - Stop supporting AtheOS and cause a build error in configure for the platform.
2000 - Bug #1655392: don't add -L/usr/lib/pythonX.Y/config to the LDFLAGS
2001 returned by python-config if Python was built with --enable-shared
2002 because that prevented the shared library from being used.
2004 - Patch #1569798: fix a bug in distutils when building Python from a
2005 directory within sys.exec_prefix.
2007 - Bug #1675511: Use -Kpic instead of -xcode=pic32 on Solaris/x86.
2009 - Disable _XOPEN_SOURCE on NetBSD 1.x.
2011 - configure now checks whether gcc supports the PyArg_ParseTuple format
2014 - Bug #1578513: Cross compilation was broken by a change to configure.
2015 Repair so that it's back to how it was in 2.4.3.
2017 - Patch #1576954: Update VC6 build directory; remove redundant
2020 - Bug #1568842: Fix test for uintptr_t.
2022 - Patch #1540470, for OpenBSD 4.0.
2024 - Fix build failure on kfreebsd and on the hurd.
2026 - Fix the build of the library reference in info format.
2028 - Allow Emacs 22 for building the documentation in info format.
2030 - Makefile.pre.in(buildbottest): Run an optional script pybuildbot.identify
2031 to include some information about the build environment.
2037 - Unified naming convention for free lists and their limits. All free lists
2038 in Object/ are named ``free_list``, the counter ``numfree`` and the upper
2039 limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block.
2041 - ``PySet_Add()`` can now modify a newly created frozenset. Similarly to
2042 ``PyTuple_SetItem``, it can be used to populate a brand new frozenset; but
2043 it does not steal a reference to the added item.
2045 - Added ``PySet_Check()`` and ``PyFrozenSet_Check()`` to the set API.
2047 - Backport of PyUnicode_FromString(), _FromStringAndSize(), _Format and
2048 _FormatV from Python 3.0. Made PyLong_AsSsize_t and PyLong_FromSsize_t
2051 - Patch #1720595: add T_BOOL to the range of structmember types.
2053 - Issue #1534: Added ``PyFloat_GetMax()``, ``PyFloat_GetMin()`` and
2054 ``PyFloat_GetInfo()`` to the float API.
2056 - Issue #1521: On 64bit platforms, using PyArgs_ParseTuple with the t# of w#
2057 format code incorrectly truncated the length to an int, even when
2058 PY_SSIZE_T_CLEAN is set. The str.decode method used to return incorrect
2059 results with huge strings.
2061 - Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE
2064 - PEP 3123: Provide forward compatibility with Python 3.0, while keeping
2065 backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
2066 PyVarObject_HEAD_INIT.
2068 - Py_ssize_t fields work in structmember when HAVE_LONG_LONG is not defined.
2070 - Patch #1733960: Allow T_LONGLONG to accept ints.
2072 - T_PYSSIZET can now be used in PyMemberDef lists for Py_ssize_t members.
2074 - Added a new API function ``PyImport_ImportModuleNoBlock``.
2076 - Bug #1637022: Prefix AST symbols with _Py_.
2078 - Fix some leftovers from the conversion from int to Py_ssize_t
2079 (relevant to strings and sequences of more than 2**31 items).
2081 - Make _PyGILState_NoteThreadState() static, it was not used anywhere
2082 outside of pystate.c and should not be necessary.
2084 - ``PyImport_Import`` and ``PyImport_ImportModule`` now always do absolute
2085 imports. In earlier versions they might have used relative imports under
2088 - Added case insensitive comparison methods ``PyOS_stricmp(char*, char*)``
2089 and ``PyOS_strnicmp(char*, char*, Py_ssize_t)``.
2091 - Bug #1542693: remove semi-colon at end of PyImport_ImportModuleEx macro
2092 so it can be used as an expression.
2098 - Patch #1706: Drop support for Win9x, WinME and NT4. Python now requires
2099 Windows 2000 or greater. The _WINVER and NTDDI_VERSION macros are set to
2100 Win2k for x86/32bit builds and WinXP for AMD64 builds.
2102 - Conditionalize definition of _CRT_SECURE_NO_DEPRECATE
2103 and _CRT_NONSTDC_NO_DEPRECATE.
2105 - Bug #1216: Restore support for Visual Studio 2002.
2111 - cfmfile now raises a DeprecationWarning.
2113 - buildtools now raises a DeprecationWarning.
2115 - Removed the macfs module. It had been deprecated since Python 2.5. This
2116 lead to the deprecation of macostools.touched() as it relied solely on macfs
2117 and was a no-op under OS X.
2121 **(For information about older versions, consult the HISTORY file.)**