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* bpo-40993: Don't run Travis CI coverage on PRs (GH-20916)Victor Stinner2020-06-161-0/+12
* bpo-40474: Updated coverage.yml to better report coverage stats (#19851)lrjball2020-05-281-0/+2
* bpo-40503: PEP 615: Tests and implementation for zoneinfo (GH-19909)Paul Ganssle2020-05-161-0/+1
* PEP 617: Only run the CI with the new parser (GH-19664)Pablo Galindo2020-04-221-1/+0
* bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)Pablo Galindo2020-04-221-2/+5
* bpo-40162: Update Travis CI config to OpenSSL 1.1.1f (GH-19319)Victor Stinner2020-04-031-1/+1
* bpo-39704: Explicitly pass the path to codecov config (GH-18680)Ammar Askar2020-02-271-2/+2
* bpo-39035: travis: Don't use beta group (GH-17602)Inada Naoki2019-12-141-1/+0
* Bump Sphinx to 2.2.0. (GH-16532)Julien Palard2019-10-221-1/+1
* bpo-38117: Test with OpenSSL 1.1.1d (GH-15983)Christian Heimes2019-09-111-1/+1
* Remove macOS tests from Travis. (GH-15809)Benjamin Peterson2019-09-101-10/+0
* Future-proof .travis.yml for Python 3.10 (GH-14831)Anthony Sottile2019-09-091-1/+1
* bpo-30345: travis: use -Og with --with-pydebug (GH-14423)Inada Naoki2019-06-271-1/+2
* bpo-33926: enable GDB tests on Travis CI (GH-14395)Jeroen Demeyer2019-06-271-2/+2
* Doc: Bump Sphinx verison. (#13785)Julien Palard2019-06-151-1/+1
* bpo-37081: Test with OpenSSL 1.1.1c (GH-13631)Christian Heimes2019-06-031-1/+1
* Name individual Travis CI jobs (GH-13268)Gordon P. Hemsley2019-05-131-6/+12
* bpo-36684: Split out gcc and test coverage builds (GH-13146)Gordon P. Hemsley2019-05-121-4/+18
* bpo-36597: fix random doctest failure (GH-12776)Inada Naoki2019-04-111-16/+14
* bpo-36597: Disable Travis CI doctest job (GH-12775)Victor Stinner2019-04-111-14/+16
* bpo-36307: Travis: upgrade to Xenial environment (GH-12356)CAM Gerlach2019-03-181-2/+1
* bpo-35240: Add "doctest" job to Travis CI (GH-10753)Victor Stinner2018-11-281-4/+16
* Doc: Bump sphinx. (GH-10676)Julien Palard2018-11-241-1/+1
* Encrypt Zulip webhook address (GH-10010)Zachary Ware2018-10-201-5/+8
* Pin again sphinx version as stated in the comment. (GH-9824)Julien Palard2018-10-121-1/+1
* bpo-34962: make doctest in Doc/ now passes, and is enforced in CI (GH-9806)Stéphane Wirtel2018-10-121-4/+10
* bpo-34670: Add TLS 1.3 post handshake auth (GH-9460)Christian Heimes2018-09-231-1/+1
* Enable GUI testing on Travis Linux builds via Xvfb (GH-7887)Zachary Ware2018-07-111-2/+7
* Add test coverage reporting for C files (GH-7773)Ammar Askar2018-06-221-1/+6
* travis: Fix macOS build (GH-7250)INADA Naoki2018-06-041-1/+1
* bpo-33570: TLS 1.3 ciphers for OpenSSL 1.1.1 (GH-6976)Christian Heimes2018-05-221-1/+1
* Add a webhook for Zulip to the Travis configuration (GH-6379)Brett Cannon2018-04-051-0/+5
* bpo-30607: Use external python-doc-theme (GH-2017)Jon Wayne Parrott2018-03-011-1/+2
* bpo-31355: Travis-CI: re-enable macOS job (#5858)Antoine Pitrou2018-02-271-3/+12
* Clean up Travis config (GH-5727)Zachary Ware2018-02-181-48/+52
* bpo-30638: Add clinic to `make regen-all` (GH-5671)Zachary Ware2018-02-171-2/+2
* travis: Use -O3 option (GH-5599)INADA Naoki2018-02-101-1/+2
* bpo-32802: Fix Travis build (GH-5589)Stéphane Wirtel2018-02-081-1/+1
* Fix changed file detection on Travis (GH-3129)Ammar Askar2018-01-271-1/+15
* bpo-32549: Compile OpenSSL 1.1.0 on Travis CI (#5180)Christian Heimes2018-01-161-0/+24
* Revert "bpo-30487: automatically create a venv and install Sphinx when runnin...Ned Deily2017-11-271-1/+1
* bpo-30487: automatically create a venv and install Sphinx when running make (...Caleb Hattingh2017-11-261-1/+1
* bpo-31810: Add smelly.py to check exported symbols (#4057)Victor Stinner2017-10-241-0/+2
* bpo-31540: Allow passing multiprocessing context to ProcessPoolExecutor (#3682)Thomas Moreau2017-10-031-1/+1
* Travis CI: run coverage test using --fail-env-changed (#3541)Victor Stinner2017-09-131-1/+1
* bpo-31355: Travis CI: remove the macOS job (#3367)Victor Stinner2017-09-061-9/+0
* Include additional changes to support blurbified NEWS (#3340)Ned Deily2017-09-051-1/+1
* Travis: use ccache (#3307)Christian Heimes2017-09-041-2/+4
* bpo-31231: Fix pythoninfo in Travis config (#3134)Victor Stinner2017-08-181-1/+1
* bpo-30871: Add test.pythoninfo (#3075)Victor Stinner2017-08-171-0/+2
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+++++++++++
Python News
+++++++++++

(editors: check NEWS.help for information about editing NEWS using ReST.)

What's New in Python 2.6 alpha 1?
=================================

*Release date: XX-XXX-2008*

Core and builtins
-----------------

- sys.float_info / PyFloat_GetInfo: The floating point information
  object was converted from a dict to a specialized structseq object.

- Patch #1816: Added sys.flags structseq. It exposes the status of most
  command line arguments and PYTHON* environment variables. 

- Object/structseq.c: Implemented new structseq representation. The patch
  makes structseqs (e.g. the return value of os.stat) more readable.

- Patch #1700288: added a type attribute cache that caches method accesses,
  resulting in speedups in heavily object-oriented code.

- Bug #1776: __import__() no longer accepts filenames on any platform.
  The first parameter to __import__() must be a valid module name.

- Patch #1668: renamed THREADDEBUG envvar to PYTHONTHREADDEBUG.

- Patch #602345: Add -B command line option, PYTHONDONTWRITEBYTECODE envvar
  and sys.dont_write_bytecode attribute. All these can be set to forbid Python
  to attempt to write compiled bytecode files.

- Improve some exception messages when Windows fails to load an extension
  module. Now we get for example '%1 is not a valid Win32 application' instead
  of 'error code 193'.

- Bug #1481296: Fixed long(float('nan'))!=0L.

- Issue #1640: Added math.isinf(x), math.isnan(x) and math.copysign(x, y)
  functions.

- Issue #1635: Platform independent creation and representation of NaN
  and INF. float("nan"), float("inf") and float("-inf") now work on every
  platform with IEEE 754 semantics.

- Compiler now generates simpler and faster code for dictionary literals.
  The oparg for BUILD_MAP now indicates an estimated dictionary size.
  There is a new opcode, STORE_MAP, for adding entries to the dictionary.

- Issue #1638: %zd configure test fails on Linux

- Issue #1620: New property decorator syntax was modifying the decorator
  in place instead of creating a new decorator object.

- Issue #1580: New free format floating point representation based on
  "Floating-Point Printer Sample Code", by Robert G. Burger. For example
  repr(11./5) now returns '2.2' instead of '2.2000000000000002'.

- Issue #1538: Avoid copying string in split/rsplit if the split
  char is not found.

- Issue #1553: An erroneous __length_hint__ can make list() raise a
  SystemError.

- PEP 366: Allow explicit relative imports when executing modules
  inside packages with the -m switch via a new module level
  __package__ attribute.

- Issue #1534: Added ``PyFloat_GetMax()``, ``PyFloat_GetMin()`` and
  ``PyFloat_GetInfo()`` to the float API.

- Issue #1521: On 64bit platforms, using PyArgs_ParseTuple with the t# of w#
  format code incorrectly truncated the length to an int, even when
  PY_SSIZE_T_CLEAN is set.  The str.decode method used to return incorrect
  results with huge strings.

- Issue #1402: Fix a crash on exit, when another thread is still running, and
  if the deallocation of its frames somehow calls the PyGILState_Ensure() /
  PyGILState_Release() functions.

- Expose the Py_Py3kWarningFlag as sys.py3kwarning.

- Issue #1445: Fix a SystemError when accessing the ``cell_contents`` 
  attribute of an empty cell object.

- Issue #1460: The utf-7 incremental decoder did not accept truncated input.
  It now correctly saves its state between chunks of data.

- Patch #1739468: Directories and zipfiles containing a __main__.py file can
  now be directly executed by passing their name to the interpreter. The
  directory/zipfile is automatically inserted as the first entry in sys.path.

- Issue #1265: Fix a problem with sys.settrace, if the tracing function uses a
  generator expression when at the same time the executed code is closing a
  paused generator.

- sets and frozensets now have an isdisjoint() method.

- optimize the performance of builtin.sum().

- Fix warnings found by the new version of the Coverity checker.

- The enumerate() builtin function is no longer bounded to sequences smaller
  than LONG_MAX.  Formerly, it raised an OverflowError.  Now, automatically
  shifts from ints to longs.

- Issue #1686386: Tuple's tp_repr did not take into account the possibility of
  having a self-referential tuple, which is possible from C code.  Nor did
  object's tp_str consider that a type's tp_str could do something that could
  lead to an inifinite recursion.  Py_ReprEnter() and Py_EnterRecursiveCall(),
  respectively, fixed the issues.

- Issue #1164: It was possible to trigger deadlock when using the 'print'
  statement to write to a file since the GIL was not released as needed.  Now
  PyObject_Print() does the right thing along with various tp_print
  implementations of the built-in types and those in the collections module.

- Issue #1147: Exceptions were directly allowing string exceptions in their
  throw() method even though string exceptions no longer allowed.

- Issue #1096: Prevent a segfault from getting the repr of a very deeply nested
  list by using the recursion counter.

- Issue #1202533: Fix infinite recursion calls triggered by calls to
  PyObject_Call() never calling back out to Python code to trigger recursion
  depth updates/checks.  Required the creation of a static RuntimeError
  instance in case normalizing an exception put the recursion check value past
  its limit.  Fixes crashers infinite_rec_(1|2|4|5).py.

- Patch #1031213: Decode source line in SyntaxErrors back to its original source
  encoding.

- Py_ssize_t fields work in structmember when HAVE_LONG_LONG is not defined.

- PEP 3123: Provide forward compatibility with Python 3.0, while keeping
  backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
  PyVarObject_HEAD_INIT.

- Patch #1673759: add a missing overflow check when formatting floats
  with %G.

- Patch #1733960: Allow T_LONGLONG to accept ints.

- T_PYSSIZET can now be used in PyMemberDef lists for Py_ssize_t members.

- Prevent expandtabs() on string and unicode objects from causing a segfault
  when a large width is passed on 32-bit platforms.

- Bug #1733488: Fix compilation of bufferobject.c on AIX.

- Bug #1722485: remove docstrings again when running with -OO.

- Add new attribute names for function objects.  All the func_* become
  __*__ attributes.  (Some already existed, e.g., __doc__ and __name__.)

- Add -3 option to the interpreter to warn about features that are
  deprecated and will be changed/removed in Python 3.0.

- Patch #1686487: you can now pass any mapping after '**' in function
  calls.

- except clauses may now be spelled either "except E, target:" or
  "except E as target:". This is to provide forwards compatibility with
  Python 3.0.

- Deprecate BaseException.message as per PEP 352.

- Bug #1303614: don't expose object's __dict__ when the dict is
  inherited from a builtin base.

- When __slots__ are set to a unicode string, make it work the same as
  setting a plain string, ie don't expand to single letter identifiers.

- Request #1191699:  Slices can now be pickled.

- Request #1193128:  str.translate() now allows a None argument for
  translations that only remove characters without re-mapping the
  remaining characters.

- Patch #1682205: a TypeError while unpacking an iterable is no longer
  masked by a generic one with the message "unpack non-sequence".

- Remove unused file Python/fmod.c.

- Bug #1683368: The object.__init__() and object.__new__() methods are
  now stricter in rejecting excess arguments.  The only time when
  either allows excess arguments is when it is not overridden and the
  other one is.  For backwards compatibility, when both are
  overridden, it is a deprecation warning (for now; maybe a Py3k
  warning later).  Also, type.__init__() insists on the same signature
  as supported by type.__new__().

- Patch #1675423: PyComplex_AsCComplex() now tries to convert an object
  to complex using its __complex__() method before falling back to the
  __float__() method. Therefore, the functions in the cmath module now
  can operate on objects that define a __complex__() method.

- Patch #1623563: allow __class__ assignment for classes with __slots__.
  The old and the new class are still required to have the same slot names.

- Patch #1642547: Fix an error/crash when encountering syntax errors in
  complex if statements.

- Patch #1462488: Python no longer segfaults when ``object.__reduce_ex__()``
  is called with an object that is faking its type.

- Patch #1680015: Don't modify __slots__ tuple if it contains an unicode
  name.

- Patch #1444529: the builtin compile() now accepts keyword arguments.

- Bug #1678647: write a newline after printing an exception in any
  case, even when converting the value to a string failed.

- The dir() function has been extended to call the __dir__() method on
  its argument, if it exists. If not, it will work like before. This allows
  customizing the output of dir() in the presence of a __getattr__().

- Patch #922167: Python no longer segfaults when faced with infinitely
  self-recursive reload() calls (as reported by bug #742342).

- Patch #1675981: remove unreachable code from ``type.__new__()`` method.

- Patch #1491866: change the complex() constructor to allow parthensized
  forms. This means complex(repr(x)) now works instead of raising a
  ValueError.

- Patch #703779: unset __file__ in __main__ after running a file. This
  makes the filenames the warning module prints much more sensible when
  a PYTHONSTARTUP file is used.

- Variant of patch #697613: don't exit the interpreter on a SystemExit
  exception if the -i command line option or PYTHONINSPECT environment
  variable is given, but break into the interactive interpreter just like
  on other exceptions or normal program exit.

- Patch #1638879: don't accept strings with embedded NUL bytes in long().

- Bug #1674503: close the file opened by execfile() in an error condition.

- Patch #1674228: when assigning a slice (old-style), check for the
  sq_ass_slice instead of the sq_slice slot.

- When printing an unraisable error, don't print exceptions. before the name.
  This duplicates the behavior whening normally printing exceptions.

- Bug #1653736: Properly discard third argument to slot_nb_inplace_power.

- PEP 352: Raising a string exception now triggers a TypeError.  Attempting to
  catch a string exception raises DeprecationWarning.

- Bug #1377858: Fix the segfaulting of the interpreter when an object created
  a weakref on itself during a __del__ call for new-style classes (classic
  classes still have the bug).

- Bug #1579370: Make PyTraceBack_Here use the current thread, not the
  frame's thread state.

- patch #1630975: Fix crash when replacing sys.stdout in sitecustomize.py

- Bug #1637022: Prefix AST symbols with _Py_.

- Prevent seg fault on shutdown which could occur if an object
  raised a warning.

- Bug #1566280: Explicitly invoke threading._shutdown from Py_Main,
  to avoid relying on atexit.

- Bug #1590891: random.randrange don't return correct value for big number

- Patch #1586791: Better exception messages for some operations on strings,
  tuples and lists.

- Bug #1067760: Deprecate passing floats to file.seek.

- Bug #1591996: Correctly forward exception in instance_contains().

- Bug #1588287: fix invalid assertion for `1,2` in debug builds.

- Bug #1576657: when setting a KeyError for a tuple key, make sure that
  the tuple isn't used as the "exception arguments tuple".

- Bug #1565514, SystemError not raised on too many nested blocks.

- Bug #1576174: WindowsError now displays the windows error code
  again, no longer the posix error code.

- Patch #1549049: Support long values in structmember, issue warnings
  if the assigned value for structmember fields gets truncated.

- Update the peephole optimizer to remove more dead code (jumps after returns)
  and inline unconditional jumps to returns.

- Bug #1545497: when given an explicit base, int() did ignore NULs
  embedded in the string to convert.

- Bug #1569998: break inside a try statement (outside a loop) is now
  recognized and rejected.

- list.pop(x) accepts any object x following the __index__ protocol.

- Fix some leftovers from the conversion from int to Py_ssize_t
  (relevant to strings and sequences of more than 2**31 items).

- A number of places, including integer negation and absolute value,
  were fixed to not rely on undefined behaviour of the C compiler
  anymore.

- Bug #1566800: make sure that EnvironmentError can be called with any
  number of arguments, as was the case in Python 2.4.

- Patch #1567691: super() and new.instancemethod() now don't accept
  keyword arguments any more (previously they accepted them, but didn't
  use them).

- Fix a bug in the parser's future statement handling that led to "with"
  not being recognized as a keyword after, e.g., this statement:
  from __future__ import division, with_statement

- Bug #1557232: fix seg fault with def f((((x)))) and def f(((x),)).

- Fix %zd string formatting on Mac OS X so it prints negative numbers.

- Allow exception instances to be directly sliced again.

- Bug #1551432: Exceptions do not define an explicit __unicode__ method.  This
  allows calling unicode() on exceptions classes directly to succeed.

- Make _PyGILState_NoteThreadState() static, it was not used anywhere
  outside of pystate.c and should not be necessary.

- Bug #1542051: Exceptions now correctly call PyObject_GC_UnTrack.
  Also make sure that every exception class has __module__ set to
  'exceptions'.

- Bug #1550983: emit better error messages for erroneous relative
  imports (if not in package and if beyond toplevel package).

- Overflow checking code in integer division ran afoul of new gcc
  optimizations.  Changed to be more standard-conforming.

- Patch #1542451: disallow continue anywhere under a finally.

- Patch #1546288: fix seg fault in dict_equal due to ref counting bug.

- The return tuple from str.rpartition(sep) is (tail, sep, head) where
  head is the original string if sep was not found.

- Bug #1520864: unpacking singleton tuples in list comprehensions and
  generator expressions (x for x, in ... ) works again.  Fixing this problem
  required changing the .pyc magic number.  This means that .pyc files
  generated before 2.5c2 will be regenerated.

- with and as are now keywords.

- Bug #1664966: Fix crash in exec if Unicode filename can't be decoded.

- Issue #1537: Changed GeneratorExit's base class from Exception to
  BaseException.

Library
-------

- #1837: The queue module now also supports a LIFO queue and a priority queue.

- Issue #1831: ctypes now raises a TypeError if conflicting positional
  and named arguments are passed to a Structure or Union initializer.
  When too many positional arguments are passed, also a TypeError is
  raised instead of a ValueError.

- Convert the internal ctypes array type cache to a WeakValueDict so
  that array types do not live longer than needed.

- Issue #1786: pdb should use its own stdin/stdout around an exec call
  and when creating a recursive instance.

- Issue #1698398 Zipfile.printdir() crashed because the format string
  expected a tuple type of length six instead of time.struct_time object.

- Issue #1780: The Decimal constructor now accepts arbitrary leading
  and trailing whitespace when constructing from a string.
  Context.create_decimal no longer accepts trailing newlines.

- Decimal.as_tuple(), difflib.find_longest_match() and inspect functions
  that returned a tuple now return a named tuple.

- Doctest now returns results as a named tuple for readability:  
      (0, 7) --> TestResults(failed=0, attempted=7)

- Issue #846388. re.match is interruptible now, which is particularly
  good for long regular expression matches.

- pyexpat, patch #1137: allow setting buffer_size attribute 
  on Parser objects to set the character data buffer size.

- Issue #1757: The hash of a Decimal instance is no longer affected by
  the current context.

- Patch #467924: add ZipFile.extract() and ZipFile.extractall() in the
  zipfile module.

- Issue #1646: Make socket support the TIPC protocol.

- Bug #1742: return os.curdir from os.path.relpath() if both arguments are
  equal instead of raising an exception.

- Patch #1637: fix urlparse for URLs like 'http://x.com?arg=/foo'.

- Patch #1698: allow '@' in username parsed by urlparse.py.

- Issue #1735: TarFile.extractall() now correctly sets directory permissions
  and times.

- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a mountpoint.

- Bug #1687: Fxed plistlib.py restricts <integer> to Python int when writing

- Issue #1700: Regular expression inline flags incorrectly handle certain
  unicode characters.

- Issue #1689: PEP 3141, numeric abstract base classes.

- Tk issue #1851526: Return results from Python callbacks to Tcl as
  Tcl objects.

- Issue #1642: Fix segfault in ctypes when trying to delete attributes.

- Issue #1727780: Support loading pickles of random.Random objects created
  on 32-bit systems on 64-bit systems, and vice versa. As a consequence
  of the change, Random pickles created by Python 2.6 cannot be loaded
  in Python 2.5.

- Issue #1455: The distutils package now supports VS 2005 and VS 2008 for
  both the msvccompiler and cygwincompiler.

- Issue #1531: tarfile.py: Read fileobj from the current offset, do not
  seek to the start.

- Issue #1534: Added a dictionary sys.float_info with information about the
  internal floating point type to the sys module.

- Issue 1429818: patch for trace and doctest modules so they play nicely
  together.

- doctest made a bad assumption that a package's __loader__.get_data()
  method used universal newlines.

- Issue #1705170: contextlib.contextmanager was still swallowing
  StopIteration in some cases. This should no longer happen.

- Issue #1292: On alpha, arm, ppc, and s390 linux systems the
  --with-system-ffi configure option defaults to "yes".

- IN module for FreeBSD 8 is added and preexisting FreeBSD 6 and 7
  files are updated.

- Issues #1181, #1287: unsetenv() is now called when the os.environ.pop()
  and os.environ.clear() methods are used.

- ctypes will now work correctly on 32-bit systems when Python is
  configured with --with-system-ffi.

- Patch #1203: ctypes now does work on OS X when Python is built with
  --disable-toolbox-glue.

- collections.deque() now supports a "maxlen" argument.

- itertools.count() is no longer bounded to LONG_MAX.  Formerly, it raised
  an OverflowError.  Now, automatically shifts from ints to longs.

- Patch #1541463: optimize performance of cgi.FieldStorage operations.

- Decimal is fully updated to the latest Decimal Specification (v1.66).

- Bug #1153: repr.repr() now doesn't require set and dictionary items
  to be orderable to properly represent them.

- A 'c_longdouble' type was added to the ctypes module.

- Bug #1709599: Run test_1565150 only if the file system is NTFS.

- When encountering a password-protected robots.txt file the RobotFileParser
  no longer prompts interactively for a username and password (bug 813986).

- TarFile.__init__() no longer fails if no name argument is passed and
  the fileobj argument has no usable name attribute (e.g. StringIO).

- The functools module now provides 'reduce', for forward compatibility
  with Python 3000.

- Server-side SSL support and cert verification added, by Bill Janssen.

- socket.ssl deprecated; use new ssl module instead.

- uuid creation is now threadsafe.

- EUC-KR codec now handles the cheot-ga-keut composed make-up hangul
  syllables.

- GB18030 codec now can encode additional two-byte characters that
  are missing in GBK.

- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.

- Bug #1704793: Return UTF-16 pair if unicodedata.lookup cannot
  represent the result in a single character.

- Bug #978833: Close https sockets by releasing the _ssl object.

- Change location of the package index to pypi.python.org/pypi

- Bug #1701409: Fix a segfault in printing ctypes.c_char_p and
  ctypes.c_wchar_p when they point to an invalid location.  As a
  sideeffect the representation of these instances has changed.

- tarfile.py: Added "exclude" keyword argument to TarFile.add().

- Bug #1734723: Fix repr.Repr() so it doesn't ignore the maxtuple attribute.

- The urlopen function of urllib2 now has an optional timeout parameter (note 
  that it actually works with HTTP, HTTPS, FTP and FTPS connections).

- In ftplib, the FTP.ntransfercmd method, when in passive mode, now uses
  the socket.create_connection function, using the timeout specified at
  connection time.

- Bug #1728403: Fix a bug that CJKCodecs StreamReader hangs when it
  reads a file that ends with incomplete sequence and sizehint argument
  for .read() is specified.

- Bug #1730389: Change time.strptime() to use ``\s+`` instead of ``\s*`` when
  matching spaces in the specified format argument.

- SF 1668596/1720897: distutils now copies data files
  even if package_dir is empty.

- sha now raises a DeprecationWarning upon import.

- md5 now raises a DeprecationWarning upon import.

- Issue1385: The hmac module now computes the correct hmac when using hashes
  with a block size other than 64 bytes (such as sha384 and sha512).

- mimify now raises a DeprecationWarning upon import.

- MimeWriter now raises a DeprecationWarning upon import.

- tarfile.py: Improved unicode support. Unicode input names are now
  officially supported. Added "errors" argument to the TarFile class.

- urllib.ftpwrapper class now accepts an optional timeout.

- shlex.split() now has an optional "posix" parameter.

- The posixfile module now raises a DeprecationWarning.

- Remove the gopherlib module.  This also leads to the removal of gopher
  support in urllib/urllib2.

- Fix bug in marshal where bad data would cause a segfault due to
  lack of an infinite recursion check.

- Removed plat-freebsd2 and plat-freebsd3 directories (and IN.py in
  the directories).

- HTML-escape the plain traceback in cgitb's HTML output, to prevent
  the traceback inadvertently or maliciously closing the comment and
  injecting HTML into the error page.

- The popen2 module and os.popen* are deprecated.  Use the subprocess module.

- Added an optional credentials argument to SMTPHandler, for use with SMTP
  servers which require authentication.

- Patch #1695948: Added optional timeout parameter to SocketHandler.

- Bug #1652788: Minor fix for currentframe.

- Patch #1598415: Added WatchedFileHandler to better support external
  log file rotation using e.g. newsyslog or logrotate. This handler is
  only useful in Unix/Linux environments.

- Bug #1706381: Specifying the SWIG option "-c++" in the setup.py file
  (as opposed to the command line) will now write file names ending in
  ".cpp" too.

- As specified in RFC 2616, an HTTP response like 2xx indicates that
  the client's request was successfully received, understood, and accepted.
  Now in these cases no error is raised in urllib (issue #1177) and urllib2.

- Bug #1290505: time.strptime's internal cache of locale information is now
  properly recreated when the locale is changed.

- Patch #1685563: remove (don't add) duplicate paths in distutils.MSVCCompiler.

- Added a timeout parameter to the constructor of other protocols
  (telnetlib, ftplib, smtplib and poplib). This is second part of the
  work started with create_connection() and timeout in httplib, and
  closes patch #723312.

- Patch #1676823: Added create_connection() to socket.py, which may be
  called with a timeout, and use it from httplib (whose HTTPConnection
  and HTTPSConnection now accept an optional timeout).

- Bug #978833: Revert r50844, as it broke _socketobject.dup.

- Bug #1675967: re patterns pickled with Python 2.4 and earlier can
  now be unpickled with Python 2.5 and newer.

- Patch #1630118: add a SpooledTemporaryFile class to tempfile.py.

- Patch #1273829: os.walk() now has a "followlinks" parameter. If set to
  True (which is not the default), it visits symlinks pointing to
  directories.

- Bug #1681228: the webbrowser module now correctly uses the default
  GNOME or KDE browser, depending on whether there is a session of one
  of those present. Also, it tries the Windows default browser before
  trying Mozilla variants.

- Patch #1339796: add a relpath() function to os.path.

- Patch #1681153: the wave module now closes a file object it opened if
  initialization failed.

- Bug #767111: fix long-standing bug in urllib which caused an
  AttributeError instead of an IOError when the server's response didn't
  contain a valid HTTP status line.

- Patch #957650: "%var%" environment variable references are now properly
  expanded in ntpath.expandvars(), also "~user" home directory references
  are recognized and handled on Windows.

- Patch #1429539: pdb now correctly initializes the __main__ module for
  the debugged script, which means that imports from __main__ work
  correctly now.

- The nonobvious commands.getstatus() function is now deprecated.

- Patch #1393667: pdb now has a "run" command which restarts the debugged
  Python program, optionally with different arguments.

- Patch #1649190: Adding support for _Bool to ctypes as c_bool.

- Patch #1530482: add pydoc.render_doc() which returns the documentation
  for a thing instead of paging it to stdout, which pydoc.doc() does.

- Patch #1533909: the timeit module now accepts callables in addition to
  strings for the code to time and the setup code. Also added two
  convenience functions for instantiating a Timer and calling its methods.

- Patch #1537850: tempfile.NamedTemporaryFile now has a "delete" parameter
  which can be set to False to prevent the default delete-on-close
  behavior.

- Patch #1581073: add a flag to textwrap that prevents the dropping of
  whitespace while wrapping.

- Patch #1603688: ConfigParser.SafeConfigParser now checks values that
  are set for invalid interpolation sequences that would lead to errors
  on reading back those values.

- Added support for the POSIX.1-2001 (pax) format to tarfile.py. Extended
  and cleaned up the test suite. Added a new testtar.tar.

- Patch #1449244: Support Unicode strings in
  email.message.Message.{set_charset,get_content_charset}.

- Patch #1542681: add entries for "with", "as" and "CONTEXTMANAGERS" to
  pydoc's help keywords.

- Patch #1555098: use str.join() instead of repeated string
  concatenation in robotparser.

- Patch #1635454: the csv.DictWriter class now includes the offending
  field names in its exception message if you try to write a record with
  a dictionary containing fields not in the CSV field names list.

- Patch #1668100: urllib2 now correctly raises URLError instead of
  OSError if accessing a local file via the file:// protocol fails.

- Patch #1677862: Require a space or tab after import in .pth files.

- Patch #1192590: Fix pdb's "ignore" and "condition" commands so they trap
  the IndexError caused by passing in an invalid breakpoint number.

- Patch #1599845: Add an option to disable the implicit calls to server_bind()
  and server_activate() in the constructors for TCPServer, SimpleXMLRPCServer
  and DocXMLRPCServer.

- Bug #1531963: Make SocketServer.TCPServer's server_address always
  be equal to calling getsockname() on the server's socket. Fixed by
  patch #1545011.

- Bug #1651235: When a tuple was passed to a ctypes function call,
  Python would crash instead of raising an error.

- Bug #1646630: ctypes.string_at(buf, 0) and ctypes.wstring_at(buf, 0)
  returned string up to the first NUL character.

- Patch #957003: Implement smtplib.LMTP.

- Patch #1481079: add support for HTTP_REFERER to CGIHTTPServer.

- Patch #1675424: Added tests for uncovered code in the zipfile module. 
  The KeyError raised by Zipfile.getinfo for nonexistent names now has 
  a descriptive message.

- Bug #1115886: os.path.splitext('.cshrc') gives now ('.cshrc', '').

- unittest now verifies more of its assumptions. In particular, TestCase
  and TestSuite subclasses (not instances) are no longer accepted in
  TestSuite.addTest(). This should cause no incompatibility since it
  never made sense with ordinary subclasses -- the failure just occurred
  later, with a more cumbersome exception.

- Patch #787789: allow to pass custom TestRunner instances to unittest's
  main() function.

- Patches #1550273, #1550272: fix a few bugs in unittest and add a
  comprehensive test suite for the module.

- Patch #1001604: glob.glob() now returns unicode filenames if it was
  given a unicode argument and os.listdir() returns unicode filenames.

- Patch #1673619: setup.py identifies extension modules it doesn't know how
  to build and those it knows how to build but that fail to build.

- Patch #912410: Replace HTML entity references for attribute values
  in HTMLParser.

- Patch #1663234: you can now run doctest on test files and modules
  using "python -m doctest [-v] filename ...".

- Patch #1121142: Implement ZipFile.open.

- Taught setup.py how to locate Berkeley DB on Macs using MacPorts.

- Added heapq.merge() for merging sorted input streams.

- Added collections.namedtuple() for assigning field names to tuples.

- Added itertools.izip_longest().

- Have the encoding package's search function dynamically import using absolute
  import semantics.

- Patch #1647484: Renamed GzipFile's filename attribute to name.

- Patch #1517891: Mode 'a' for ZipFile now creates the file if it
  doesn't exist.

- Patch #698833: Support file decryption in zipfile.

- Patch #685268: Consider a package's __path__ in imputil.

- Patch 1463026: Support default namespace in XMLGenerator.

- Patch 1571379: Make trace's --ignore-dir facility work in the face of
  relative directory names.

- Bug #1600860: Search for shared python library in LIBDIR,
  not lib/python/config, on "linux" and "gnu" systems.

- Patch #1652681: tarfile.py: create nonexistent files in append mode and
  allow appending to empty files.

- Bug #1124861: Automatically create pipes if GetStdHandle fails in
  subprocess.

- Patch #1634778: add missing encoding aliases for iso8859_15 and
  iso8859_16.

- Patch #1638243: the compiler package is now able to correctly compile
  a with statement; previously, executing code containing a with statement
  compiled by the compiler package crashed the interpreter.

- Bug #1643943: Fix time.strptime's support for the %U directive.

- Patch #1507247: tarfile.py: use current umask for intermediate
  directories.

- Patch #1627441: close sockets properly in urllib2.

- Bug #494589: make ntpath.expandvars behave according to its docstring.

- Changed platform module API python_version_tuple() to actually
  return a tuple (it used to return a list).

- Added new platform module APIs python_branch(), python_revision(),
  python_implementation() and linux_distribution().

- Added support for IronPython and Jython to the platform module.

- The sets module has been deprecated.  Use the built-in set/frozenset types
  instead.

- Bug #1610795: make ctypes.util.find_library work on BSD systems.

- Fixes for 64-bit Windows: In ctypes.wintypes, correct the
  definitions of HANDLE, WPARAM, LPARAM data types.  Make
  parameterless foreign function calls work.

- The version number of the ctypes package changed to "1.1.0".

- Bug #1627575: logging: Added _open() method to FileHandler which can
  be used to reopen files. The FileHandler instance now saves the
  encoding (which can be None) in an attribute called "encoding".

- Bug #411881: logging.handlers: bare except clause removed from
  SMTPHandler.emit. Now, only ImportError is trapped.

- Bug #411881: logging.handlers: bare except clause removed from
  SocketHandler.createSocket. Now, only socket.error is trapped.

- Bug #411881: logging: bare except clause removed from LogRecord.__init__.
  Now, only ValueError, TypeError and AttributeError are trapped.

- Patch #1504073: Fix tarfile.open() for mode "r" with a fileobj argument.

- Patch #1182394 from Shane Holloway: speed up HMAC.hexdigest.

- Patch #1262036: Prevent TarFiles from being added to themselves under
  certain conditions.

- Patch #1230446: tarfile.py: fix ExFileObject so that read() and tell()
  work correctly together with readline().

- Patch #1484695: The tarfile module now raises a HeaderError exception
  if a buffer given to frombuf() is invalid.

- Bug #1503765: Fix a problem in logging.config with spaces in comma-
  separated lists read from logging config files.

- Patch #1604907: Fix problems in logging.handlers caused at logging shutdown
  when syslog handlers fail to initialize because of syslogd problems.

- Patch #1608267: fix a race condition in os.makedirs() if the directory
  to be created is already there.

- Patch #1610437: fix a tarfile bug with long filename headers.

- Patch #1371075: Make ConfigParser accept optional dict type
  for ordering, sorting, etc.

- Bug #1563807: _ctypes built on AIX fails with ld ffi error.

- Bug #1598620: A ctypes Structure cannot contain itself.

- Patch #1070046: Marshal new-style objects like InstanceType
  in xmlrpclib.

- cStringIO.truncate(-1) now raises an IOError, like StringIO and
  regular files.

- Patch #1472877: Fix Tix subwidget name resolution.

- Patch #1594554: Always close a tkSimpleDialog on ok(), even
  if an exception occurs.

- Patch #1538878: Don't make tkSimpleDialog dialogs transient if
  the parent window is withdrawn.

- Bug #1597824: return the registered function from atexit.register()
  to facilitate usage as a decorator.

- Patch #1360200: Use unmangled_version RPM spec field to deal with
  file name mangling.

- Patch #1359217: Process 2xx response in an ftplib transfer
  that precedes an 1xx response.

- Patch #1355023: support whence argument for GzipFile.seek.

- Patch #1065257: Support passing open files as body in
  HTTPConnection.request().

- Bug #1569790: mailbox.py: Maildir.get_folder() and MH.get_folder()
  weren't passing the message factory on to newly created Maildir/MH
  objects.

- Patch #1514543: mailbox.py: In the Maildir class, report errors if there's
  a filename clash instead of possibly losing a message.  (Patch by David
  Watson.)

- Patch #1514544: Try to ensure that messages/indexes have been physically
  written to disk after calling .flush() or .close(). (Patch by David
  Watson.)

- Patch #1592250: Add elidge argument to Tkinter.Text.search.

- Patch #838546: Make terminal become controlling in pty.fork()

- Patch #1351744: Add askyesnocancel helper for tkMessageBox.

- Patch #1060577: Extract list of RPM files from spec file in
  bdist_rpm

- Bug #1586613: fix zlib and bz2 codecs' incremental en/decoders.

- Patch #1583880: fix tarfile's problems with long names and posix/
  GNU modes.

- Bug #1586448: the compiler module now emits the same bytecode for
  list comprehensions as the builtin compiler, using the LIST_APPEND
  opcode.

- Fix codecs.EncodedFile which did not use file_encoding in 2.5.0, and
  fix all codecs file wrappers to work correctly with the "with"
  statement (bug #1586513).

- Lib/modulefinder.py now handles absolute and relative imports
  correctly.

- Patch #1567274: Support SMTP over TLS.

- Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that
  ctypes isn't considered as requiring executable stacks.

- ctypes callback functions only support 'fundamental' data types as
  result type.  Raise an error when something else is used.  This is a
  partial fix for Bug #1574584.

- Fix turtle so that time.sleep is imported for the entire library.  Allows
  the demo2 function to be executed on its own instead of only when the
  module is run as a script.

- Bug #813342: Start the IDLE subprocess with -Qnew if the parent
  is started with that option.

- Bug #1565150: Fix subsecond processing for os.utime on Windows.

- Support for MSVC 8 was added to bdist_wininst.

- Bug #1446043: correctly raise a LookupError if an encoding name given
  to encodings.search_function() contains a dot.

- Bug #1560617: in pyclbr, return full module name not only for classes,
  but also for functions.

- Bug #1457823: cgi.(Sv)FormContentDict's constructor now takes
  keep_blank_values and strict_parsing keyword arguments.

- Bug #1566602: correct failure of posixpath unittest when $HOME ends
  with a slash.

- Bug #1565661: in webbrowser, split() the command for the default
  GNOME browser in case it is a command with args.

- Made the error message for time.strptime when the data data and format do
  match be more clear.

- Fix a bug in traceback.format_exception_only() that led to an error
  being raised when print_exc() was called without an exception set.
  In version 2.4, this printed "None", restored that behavior.

- Make webbrowser.BackgroundBrowser usable in Windows (it wasn't because
  the close_fds arg to subprocess.Popen is not supported).

- Reverted patch #1504333 to sgmllib because it introduced an infinite loop.

- Patch #1553314: Fix the inspect.py slowdown that was hurting IPython & SAGE
  by adding smarter caching in inspect.getmodule()

- Fix missing import of the types module in logging.config.

- Patch #1550886: Fix decimal module context management implementation
  to match the localcontext() example from PEP 343.

- Bug #1545341: The 'classifier' keyword argument to the Distutils setup()
  function now accepts tuples as well as lists.

- Bug #1541863: uuid.uuid1 failed to generate unique identifiers
  on systems with low clock resolution.

- Bug #1531862: Do not close standard file descriptors in subprocess.

- idle: Honor the "Cancel" action in the save dialog (Debian bug #299092).

- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when the
  first chunk fed to the decoder started with a BOM, but was longer than 3 bytes.

- The implementation of UnicodeError objects has been simplified (start and end
  attributes are now stored directly as Py_ssize_t members).

- Issue829951: In the smtplib module, SMTP.starttls() now complies with 
  RFC 3207 and forgets any knowledge obtained from the server not obtained
  from the TLS negotiation itself.  Patch contributed by Bill Fenner.

- Issue1339: The smtplib.SMTP class has been refactored a bit such
  that the SMTP.starttls() caller no longer needs to call ehlo()
  beforehand.  SMTP.starttls() now raises an exception of the server
  does not claim to support starttls.  Adds the SMTP.ehlo_or_helo_if_needed()
  method.  Patch contributed by Bill Fenner.

Extension Modules
-----------------

- _winreg's HKEY object has gained __enter__ and __exit__ methods to support
  the context manager protocol.  The _winreg module also gained a new function
  ``ExpandEnvironmentStrings`` to expand REG_EXPAND_SZ keys.

- itertools.starmap() now accepts any iterable input. Previously, it required
  the function inputs to be tuples.

- Issue #1646: Make socket support TIPC. The socket module now has support
  for TIPC under Linux, see http://tipc.sf.net/ for more information.

- Added interface for Windows' WSAIoctl to socket object and added an example
  for a simple network sniffer.

- Bug #1301: Bad assert in _tkinter fixed.

- Added bdist_wininst executable for VS 2008.

- Bug #1604: collections.deque.__init__(iterable) now clears any prior contents
  before adding elements from the iterable.  This fix brings the behavior into
  line with that for list.__init__().

- Added wide char functions to msvcrt module: getwch, getwche, putwch and
  ungetwch. The functions accept or return unicode.

- os.access now returns True on Windows for any existing directory.

- Added warnpy3k function to the warnings module.

- Marshal.dumps() now expects exact type matches for int, long, float, complex,
  tuple, list, dict, set, and frozenset.  Formerly, it would silently miscode
  subclasses of those types.  Now, it raises a ValueError instead.

- Patch #1388440: Add set_completion_display_matches_hook and
  get_completion_type to readline.

- Bug #1649098: Avoid declaration of zero-sized array declaration in
  structure.

- Removed the rgbimg module; been deprecated since Python 2.5.

- Bug #1721309: prevent bsddb module from freeing random memory.

- Bug #1233: fix bsddb.dbshelve.DBShelf append method to work as
  intended for RECNO databases.

- pybsddb.sf.net Bug #477182: Load the database flags at database open
  time so that opening a database previously created with the DB_DUP or
  DB_DUPSORT flag set will keep the proper behavior on subsequent opens.
  Specifically: dictionary assignment to a DB object will replace all
  values for a given key when the database allows duplicate values.
  DB users should use DB.put(k, v) when they want to store duplicates; not
  DB[k] = v.

- Add the bsddb.db.DBEnv.lock_id_free method.

- Bug #1686475: Support stat'ing open files on Windows again.

- Patch #1185447: binascii.b2a_qp() now correctly quotes binary characters
  with ASCII value less than 32. Also, it correctly quotes dots only if
  they occur on a single line, as opposed to the previous behavior of
  quoting dots if they are the second character of any line.

- Bug #1622896: fix a rare corner case where the bz2 module raised an
  error in spite of a succesful compression.

- Patch #1654417: make operator.{get,set,del}slice use the full range
  of Py_ssize_t.

- Patch #1646728: datetime.fromtimestamp fails with negative
  fractional times.  With unittest.

- Patch #1490190: posixmodule now includes os.chflags() and os.lchflags()
  functions on platforms where the underlying system calls are available.

- Patch #1494140: Add documentation for the new struct.Struct object.

- Patch #1432399: Support the HCI protocol for bluetooth sockets

- Patch #1657276: Make NETLINK_DNRTMSG conditional.

- Bug #1653736: Complain about keyword arguments to time.isoformat.

- Bug #1486663: don't reject keyword arguments for subclasses of builtin
  types.

- Patch #1610575: The struct module now supports the 't' code, for
  C99 _Bool.

- Patch #1635058: ensure that htonl and friends never accept or
  return negative numbers, per the underlying C implementation.

- Patch #1544279: Improve thread-safety of the socket module by moving
  the sock_addr_t storage out of the socket object.

- Speed up function calls into the math module.

- Bug #1588217: don't parse "= " as a soft line break in binascii's
  a2b_qp() function, instead leave it in the string as quopri.decode()
  does.

- Bug #1599782: Fix segfault on bsddb.db.DB().type().

- Bug #1567666: Emulate GetFileAttributesExA for Win95.

- Patch #1576166: Support os.utime for directories on Windows NT+.

- Patch #1572724: fix typo ('=' instead of '==') in _msi.c.

- Bug #1572832: fix a bug in ISO-2022 codecs which may cause segfault
  when encoding non-BMP unicode characters.

- Bug #1556784: allow format strings longer than 127 characters in
  datetime's strftime function.

- Fix itertools.count(n) to work with negative numbers again.

- RLIMIT_SBSIZE was added to the resource module where available.

- Bug #1551427: fix a wrong NULL pointer check in the win32 version
  of os.urandom().

- Bug #1548092: fix curses.tparm seg fault on invalid input.

- Patch #1114: fix curses module compilation on 64-bit AIX, & possibly
  other 64-bit LP64 platforms where attr_t is not the same size as a long.  
  (Contributed by Luke Mewburn.)

- Bug #1550714: fix SystemError from itertools.tee on negative value for n.

- Fixed a few bugs on cjkcodecs:
  - gbk and gb18030 codec now handle U+30FB KATAKANA MIDDLE DOT correctly.
  - iso2022_jp_2 codec now encodes into G0 for KS X 1001, GB2312
    codepoints to conform the standard.
  - iso2022_jp_3 and iso2022_jp_2004 codec can encode JIS X 0213:2
    codepoints now.

- Bug #1552726: in readline.c, avoid repeatedly polling in interactive
  mode by only placing a timeout on the select() if an input hook has
  been defined.  This prevents an interactive Python from waking up 10
  times per second.  Patch by Richard Boulton.

- fixed a bug with bsddb.DB.stat: the flags and txn keyword arguments
  were transposed.

- Added support for linking the bsddb module against BerkeleyDB 4.5.x
  and 4.6.x.

- Bug #1633621: if curses.resizeterm() or curses.resize_term() is called,
  update _curses.LINES, _curses.COLS, curses.LINES and curses.COLS.

- Fix an off-by-one bug in locale.strxfrm().

- Fix libffi configure for hppa*-*-linux* | parisc*-*-linux*.

- Build using system ffi library on arm*-linux*.

- Bug #1372: zlibmodule.c: int overflow in PyZlib_decompress

Tests
-----

- Make test_runpy reentrant by fixing _check_module to clear out any module
  being tested.  Was causing an error by __import__ doing a reload on the
  second run and thus suppressing bytecode recreation.

- Capture socket connection resets and timeouts in test_socket_ssl and
  test_urllib2net and raise test.test_support.ResourceDenied.

- Patch #1559413: Fix test_cmd_line if sys.executable contains a space.

- Added test.test_support.TransientResource which is a context manager to
  surround calls to resources that are not guaranteed to work even if
  test.test_support.requires says that the resource should exist.

- Added a test for slicing of an exception.

- Added test.test_support.EnvironmentVarGuard.  It's a class that provides a
  context manager so that one can temporarily set or unset environment
  variables.

- Added some tests for modulefinder.

- Converted test_imp to use unittest.

- Fix bsddb test_basics.test06_Transactions to check the version
  number properly.

- test.test_support.catch_warning is a new context manager that can be used
  to catch the warnings issued by the warning framework.


Tools
-----

- Tools/18n/pygettext.py was added to the list of scripts installed by
  Tools/scripts/setup.py (tracker item 642309).

- Added IronPython and Jython support to pybench (part of which
  was patch #1563844)

- Made some minor changes to pybench output to allow the user
  to see which Python version is running pybench

- Added support for the new platform module feature
  platform.python_implementation(); this will now be saved
  in the benchmark pickle

Documentation
-------------

- Bug #1637365: add subsection about "__name__ == __main__" to the
  Python tutorial.

- Patch #1698768: updated the "using Python on the Mac" intro.

- Bug #1569057: Document that calling file.next() when the file is open for
  writing is undefined.

- Patch #1489771: the syntax rules in Python Reference Manual were
  updated to reflect the current Python syntax.

- Patch #1686451: Fix return type for
  PySequence_{Count,Index,Fast_GET_SIZE}.

- Patch #1679379: add documentation for fnmatch.translate().

- Bug #1629566: clarify the docs on the return values of parsedate()
  and parsedate_tz() in email.utils and rfc822.

- Patch #1671450: add a section about subclassing builtin types to the
  "extending and embedding" tutorial.

- Bug #1629125: fix wrong data type (int -> Py_ssize_t) in PyDict_Next
  docs.

- Bug #1565919: document set types in the Language Reference.

- Bug #1546052: clarify that PyString_FromString(AndSize) copies the
  string pointed to by its parameter.

- Bug #1566663: remove obsolete example from datetime docs.

- Bug #1541682: Fix example in the "Refcount details" API docs.
  Additionally, remove a faulty example showing PySequence_SetItem applied
  to a newly created list object and add notes that this isn't a good idea.


Tools/Demos
-----------

- Patch #1552024: add decorator support to unparse.py demo script.

- Make auto-generated python.vim file list built-ins and exceptions in
  alphatbetical order.  Makes output more deterministic and easier to tell if
  the file is stale or not.

- Bug #1546372: Fixed small bugglet in pybench that caused a missing
  file not to get reported properly.


Build
-----

- Issue #1726: Remove Python/atof.c from PCBuild/pythoncore.vcproj

- Removed PCbuild8/ directory and added a new build directory for VS 2005
  based on the VS 2008 build directory to PC/VS8.0. The script 
  PCbuild/vs8to9.py was added to sync changes from PCbuild to PC/VS8.0.

- Moved PCbuild/ directory for VS 2003 to PC/VS7.1 and renamed PCBuild9/
  directory to PCBuild/.

- Bug #1699: Define _BSD_SOURCE only on OpenBSD.

- Bug #1608: use -fwrapv when GCC supports it.  This is important,
  newer GCC versions may optimize away overflow buffer overflow checks
  without this option!

- Patch #1418: Make the AC_REPLACE_FUNCS object files actually work.

- Add a FAST_LOOPS build option that speeds-up looping by trading away
  periodic threadstate and signal checking in tight loops.  By default,
  this option is turned-off.  It should only be enabled in debugged,
  performance critical applications.

- Patch #786737: Allow building in a tree of symlinks pointing to
  a readonly source.

- Bug #1737210: Change Manufacturer of Windows installer to PSF.

- Bug #1746880: Correctly install DLLs into system32 folder on Win64.

- Define _BSD_SOURCE, to get access to POSIX extensions on OpenBSD 4.1+.

- Stop supporting AtheOS and cause a build error in configure for the platform.

- Bug #1655392: don't add -L/usr/lib/pythonX.Y/config to the LDFLAGS
  returned by python-config if Python was built with --enable-shared
  because that prevented the shared library from being used.

- Patch #1569798: fix a bug in distutils when building Python from a
  directory within sys.exec_prefix.

- Bug #1675511: Use -Kpic instead of -xcode=pic32 on Solaris/x86.

- Disable _XOPEN_SOURCE on NetBSD 1.x.

- configure now checks whether gcc supports the PyArg_ParseTuple format
  attribute.

- Bug #1578513: Cross compilation was broken by a change to configure.
  Repair so that it's back to how it was in 2.4.3.

- Patch #1576954: Update VC6 build directory; remove redundant
  files in VC7.

- Bug #1568842: Fix test for uintptr_t.

- Patch #1540470, for OpenBSD 4.0.

- Fix build failure on kfreebsd and on the hurd.

- Fix the build of the library reference in info format.

- Allow Emacs 22 for building the documentation in info format.

- Makefile.pre.in(buildbottest): Run an optional script pybuildbot.identify
  to include some information about the build environment.

C API
-----

- Added a new API function ``PyImport_ImportModuleNoBlock``.

- ``PyImport_Import`` and ``PyImport_ImportModule`` now always do absolute
  imports. In earlier versions they might have used relative imports under
  some conditions.

- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE
  and Py_REFCNT.

- Added case insensitive comparison methods ``PyOS_stricmp(char*, char*)``
  and ``PyOS_strnicmp(char*, char*, Py_ssize_t)``.

- Bug #1542693: remove semi-colon at end of PyImport_ImportModuleEx macro
  so it can be used as an expression.


Windows
-------

- Conditionalize definition of _CRT_SECURE_NO_DEPRECATE
  and _CRT_NONSTDC_NO_DEPRECATE.

- Bug #1216: Restore support for Visual Studio 2002.


Mac
---

- cfmfile now raises a DeprecationWarning.

- buildtools now raises a DeprecationWarning.

- Removed the macfs module.  It had been deprecated since Python 2.5.  This
  lead to the deprecation of macostools.touched() as it relied solely on macfs
  and was a no-op under OS X.


What's New in Python 2.5 release candidate 1?
=============================================

*Release date: 17-AUG-2006*

Core and builtins
-----------------

- Unicode objects will no longer raise an exception when being
  compared equal or unequal to a string and a UnicodeDecodeError
  exception occurs, e.g. as result of a decoding failure.

  Instead, the equal (==) and unequal (!=) comparison operators will
  now issue a UnicodeWarning and interpret the two objects as
  unequal. The UnicodeWarning can be filtered as desired using
  the warning framework, e.g. silenced completely, turned into an
  exception, logged, etc.

  Note that compare operators other than equal and unequal will still
  raise UnicodeDecodeError exceptions as they've always done.

- Fix segfault when doing string formatting on subclasses of long.

- Fix bug related to __len__ functions using values > 2**32 on 64-bit machines
  with new-style classes.

- Fix bug related to __len__ functions returning negative values with
  classic classes.

- Patch #1538606, Fix __index__() clipping.  There were some problems
  discovered with the API and how integers that didn't fit into Py_ssize_t
  were handled.  This patch attempts to provide enough alternatives
  to effectively use __index__.

- Bug #1536021: __hash__ may now return long int; the final hash
  value is obtained by invoking hash on the long int.

- Bug #1536786: buffer comparison could emit a RuntimeWarning.

- Bug #1535165: fixed a segfault in input() and raw_input() when
  sys.stdin is closed.

- On Windows, the PyErr_Warn function is now exported from
  the Python dll again.

- Bug #1191458: tracing over for loops now produces a line event
  on each iteration.  Fixing this problem required changing the .pyc
  magic number.  This means that .pyc files generated before 2.5c1
  will be regenerated.

- Bug #1333982: string/number constants were inappropriately stored
  in the byte code and co_consts even if they were not used, ie
  immediately popped off the stack.

- Fixed a reference-counting problem in property().


Library
-------

- Fix a bug in the ``compiler`` package that caused invalid code to be
  generated for generator expressions.

- The distutils version has been changed to 2.5.0. The change to
  keep it programmatically in sync with the Python version running
  the code (introduced in 2.5b3) has been reverted. It will continue
  to be maintained manually as static string literal.

- If the Python part of a ctypes callback function returns None,
  and this cannot be converted to the required C type, an exception is
  printed with PyErr_WriteUnraisable.  Before this change, the C
  callback returned arbitrary values to the calling code.

- The __repr__ method of a NULL ctypes.py_object() no longer raises
  an exception.

- uuid.UUID now has a bytes_le attribute. This returns the UUID in
  little-endian byte order for Windows. In addition, uuid.py gained some
  workarounds for clocks with low resolution, to stop the code yielding
  duplicate UUIDs.

- Patch #1540892: site.py Quitter() class attempts to close sys.stdin
  before raising SystemExit, allowing IDLE to honor quit() and exit().

- Bug #1224621: make tabnanny recognize IndentationErrors raised by tokenize.

- Patch #1536071: trace.py should now find the full module name of a
  file correctly even on Windows.

- logging's atexit hook now runs even if the rest of the module has
  already been cleaned up.

- Bug #1112549, fix DoS attack on cgi.FieldStorage.

- Bug #1531405, format_exception no longer raises an exception if
  str(exception) raised an exception.

- Fix a bug in the ``compiler`` package that caused invalid code to be
  generated for nested functions.


Extension Modules
-----------------

- Patch #1511317: don't crash on invalid hostname (alias) info.

- Patch #1535500: fix segfault in BZ2File.writelines and make sure it
  raises the correct exceptions.

- Patch # 1536908: enable building ctypes on OpenBSD/AMD64.  The
  '-no-stack-protector' compiler flag for OpenBSD has been removed.

- Patch #1532975 was applied, which fixes Bug #1533481: ctypes now
  uses the _as_parameter_ attribute when objects are passed to foreign
  function calls.  The ctypes version number was changed to 1.0.1.

- Bug #1530559, struct.pack raises TypeError where it used to convert.
  Passing float arguments to struct.pack when integers are expected
  now triggers a DeprecationWarning.


Tests
-----

- test_socketserver should now work on cygwin and not fail sporadically
  on other platforms.

- test_mailbox should now work on cygwin versions 2006-08-10 and later.

- Bug #1535182: really test the xreadlines() method of bz2 objects.

- test_threading now skips testing alternate thread stack sizes on
  platforms that don't support changing thread stack size.


Documentation
-------------

- Patch #1534922: unittest docs were corrected and enhanced.


Build
-----

- Bug #1535502, build _hashlib on Windows, and use masm assembler
  code in OpenSSL.

- Bug #1534738, win32 debug version of _msi should be _msi_d.pyd.

- Bug #1530448, ctypes build failure on Solaris 10 was fixed.


C API
-----

- New API for Unicode rich comparisons: PyUnicode_RichCompare()

- Bug #1069160.  Internal correctness changes were made to
  ``PyThreadState_SetAsyncExc()``.  A test case was added, and
  the documentation was changed to state that the return value
  is always 1 (normal) or 0 (if the specified thread wasn't found).


What's New in Python 2.5 beta 3?
================================

*Release date: 03-AUG-2006*

Core and builtins
-----------------

- _PyWeakref_GetWeakrefCount() now returns a Py_ssize_t; it previously
  returned a long (see PEP 353).

- Bug #1515471: string.replace() accepts character buffers again.

- Add PyErr_WarnEx() so C code can pass the stacklevel to warnings.warn().
  This provides the proper warning for struct.pack().
  PyErr_Warn() is now deprecated in favor of PyErr_WarnEx().

- Patch #1531113: Fix augmented assignment with yield expressions.
  Also fix a SystemError when trying to assign to yield expressions.

- Bug #1529871: The speed enhancement patch #921466 broke Python's compliance
  with PEP 302.  This was fixed by adding an ``imp.NullImporter`` type that is
  used in ``sys.path_importer_cache`` to cache non-directory paths and avoid
  excessive filesystem operations during imports.

- Bug #1521947: When checking for overflow, ``PyOS_strtol()`` used some
  operations on signed longs that are formally undefined by C.
  Unfortunately, at least one compiler now cares about that, so complicated
  the code to make that compiler happy again.

- Bug #1524310: Properly report errors from FindNextFile in os.listdir.

- Patch #1232023: Stop including current directory in search
  path on Windows.

- Fix some potential crashes found with failmalloc.

- Fix warnings reported by Klocwork's static analysis tool.

- Bug #1512814, Fix incorrect lineno's when code within a function
  had more than 255 blank lines.

- Patch #1521179: Python now accepts the standard options ``--help`` and
  ``--version`` as well as ``/?`` on Windows.

- Bug #1520864: unpacking singleton tuples in a 'for' loop (for x, in) works
  again.  Fixing this problem required changing the .pyc magic number.
  This means that .pyc files generated before 2.5b3 will be regenerated.

- Bug #1524317:  Compiling Python ``--without-threads`` failed.
  The Python core compiles again, and, in a build without threads, the
  new ``sys._current_frames()`` returns a dictionary with one entry,
  mapping the faux "thread id" 0 to the current frame.

- Bug #1525447: build on MacOS X on a case-sensitive filesystem.


Library
-------

- Correction of patch #1455898: In the mbcs decoder, set final=False
  for stream decoder, but final=True for the decode function.

- os.urandom no longer masks unrelated exceptions like SystemExit or
  KeyboardInterrupt.

- Bug #1525866: Don't copy directory stat times in
  shutil.copytree on Windows

- Bug #1002398: The documentation for os.path.sameopenfile now correctly
  refers to file descriptors, not file objects.

- The renaming of the xml package to xmlcore, and the import hackery done
  to make it appear at both names, has been removed.  Bug #1511497,
  #1513611, and probably others.

- Bug #1441397: The compiler module now recognizes module and function
  docstrings correctly as it did in Python 2.4.

- Bug #1529297:  The rewrite of doctest for Python 2.4 unintentionally
  lost that tests are sorted by name before being run.  This rarely
  matters for well-written tests, but can create baffling symptoms if
  side effects from one test to the next affect outcomes.  ``DocTestFinder``
  has been changed to sort the list of tests it returns.

- The distutils version has been changed to 2.5.0, and is now kept
  in sync with sys.version_info[:3].

- Bug #978833: Really close underlying socket in _socketobject.close.

- Bug #1459963: urllib and urllib2 now normalize HTTP header names with
  title().

- Patch #1525766: In pkgutil.walk_packages, correctly pass the onerror callback
  to recursive calls and call it with the failing package name.

- Bug #1525817: Don't truncate short lines in IDLE's tool tips.

- Patch #1515343: Fix printing of deprecated string exceptions with a
  value in the traceback module.

- Resync optparse with Optik 1.5.3: minor tweaks for/to tests.

- Patch #1524429: Use repr() instead of backticks in Tkinter again.

- Bug #1520914: Change time.strftime() to accept a zero for any position in its
  argument tuple.  For arguments where zero is illegal, the value is forced to
  the minimum value that is correct.  This is to support an undocumented but
  common way people used  to fill in inconsequential information in the time
  tuple pre-2.4.

- Patch #1220874: Update the binhex module for Mach-O.

- The email package has improved RFC 2231 support, specifically for
  recognizing the difference between encoded (name*0*=<blah>) and non-encoded
  (name*0=<blah>) parameter continuations.  This may change the types of
  values returned from email.message.Message.get_param() and friends.
  Specifically in some cases where non-encoded continuations were used,
  get_param() used to return a 3-tuple of (None, None, string) whereas now it
  will just return the string (since non-encoded continuations don't have
  charset and language parts).

  Also, whereas % values were decoded in all parameter continuations, they are
  now only decoded in encoded parameter parts.

- Bug #1517990: IDLE keybindings on MacOS X now work correctly

- Bug #1517996: IDLE now longer shows the default Tk menu when a
  path browser, class browser or debugger is the frontmost window on MacOS X

- Patch #1520294: Support for getset and member descriptors in types.py,
  inspect.py, and pydoc.py.  Specifically, this allows for querying the type
  of an object against these built-in types and more importantly, for getting
  their docstrings printed in the interactive interpreter's help() function.


Extension Modules
-----------------

- Patch #1519025 and bug #926423: If a KeyboardInterrupt occurs during
  a socket operation on a socket with a timeout, the exception will be
  caught correctly.  Previously, the exception was not caught.

- Patch #1529514: The _ctypes extension is now compiled on more
  openbsd target platforms.

- The ``__reduce__()`` method of the new ``collections.defaultdict`` had
  a memory leak, affecting pickles and deep copies.

- Bug #1471938: Fix curses module build problem on Solaris 8; patch by
  Paul Eggert.

- Patch #1448199: Release interpreter lock in _winreg.ConnectRegistry.

- Patch #1521817: Index range checking on ctypes arrays containing
  exactly one element enabled again.  This allows iterating over these
  arrays, without the need to check the array size before.

- Bug #1521375: When the code in ctypes.util.find_library was
  run with root privileges, it could overwrite or delete
  /dev/null in certain cases; this is now fixed.

- Bug #1467450: On Mac OS X 10.3, RTLD_GLOBAL is now used as the
  default mode for loading shared libraries in ctypes.

- Because of a misspelled preprocessor symbol, ctypes was always
  compiled without thread support; this is now fixed.

- pybsddb Bug #1527939: bsddb module DBEnv dbremove and dbrename
  methods now allow their database parameter to be None as the
  sleepycat API allows.

- Bug #1526460: Fix socketmodule compile on NetBSD as it has a different
  bluetooth API compared with Linux and FreeBSD.

Tests
-----

- Bug #1501330: Change test_ossaudiodev to be much more tolerant in terms of
  how long the test file should take to play.  Now accepts taking 2.93 secs
  (exact time) +/- 10% instead of the hard-coded 3.1 sec.

- Patch #1529686: The standard tests ``test_defaultdict``, ``test_iterlen``,
  ``test_uuid`` and ``test_email_codecs`` didn't actually run any tests when
  run via ``regrtest.py``. Now they do.

Build
-----

- Bug #1439538: Drop usage of test -e in configure as it is not portable.

Mac
---

- PythonLauncher now works correctly when the path to the script contains
  characters that are treated specially by the shell (such as quotes).

- Bug #1527397: PythonLauncher now launches scripts with the working directory
  set to the directory that contains the script instead of the user home
  directory. That latter was an implementation accident and not what users
  expect.


What's New in Python 2.5 beta 2?
================================

*Release date: 11-JUL-2006*

Core and builtins
-----------------

- Bug #1441486: The literal representation of -(sys.maxint - 1)
  again evaluates to a int object, not a long.

- Bug #1501934: The scope of global variables that are locally assigned
  using augmented assignment is now correctly determined.

- Bug #927248: Recursive method-wrapper objects can now safely
  be released.

- Bug #1417699: Reject locale-specific decimal point in float()
  and atof().

- Bug #1511381: codec_getstreamcodec() in codec.c is corrected to
  omit a default "error" argument for NULL pointer.  This allows
  the parser to take a codec from cjkcodecs again.

- Bug #1519018: 'as' is now validated properly in import statements.

- On 64 bit systems, int literals that use less than 64 bits are
  now ints rather than longs.

- Bug #1512814, Fix incorrect lineno's when code at module scope
  started after line 256.

- New function ``sys._current_frames()`` returns a dict mapping thread
  id to topmost thread stack frame.  This is for expert use, and is
  especially useful for debugging application deadlocks.  The functionality
  was previously available in Fazal Majid's ``threadframe`` extension
  module, but it wasn't possible to do this in a wholly threadsafe way from
  an extension.

Library
-------

- Bug #1257728: Mention Cygwin in distutils error message about a missing
  VS 2003.

- Patch #1519566: Update turtle demo, make begin_fill idempotent.

- Bug #1508010: msvccompiler now requires the DISTUTILS_USE_SDK
  environment variable to be set in order to the SDK environment
  for finding the compiler, include files, etc.

- Bug #1515998: Properly generate logical ids for files in bdist_msi.

- warnings.py now ignores ImportWarning by default

- string.Template() now correctly handles tuple-values. Previously,
  multi-value tuples would raise an exception and single-value tuples would
  be treated as the value they contain, instead.

- Bug #822974: Honor timeout in telnetlib.{expect,read_until}
  even if some data are received.

- Bug #1267547: Put proper recursive setup.py call into the
  spec file generated by bdist_rpm.

- Bug #1514693: Update turtle's heading when switching between
  degrees and radians.

- Reimplement turtle.circle using a polyline, to allow correct
  filling of arcs.

- Bug #1514703: Only setup canvas window in turtle when the canvas
  is created.

- Bug #1513223: .close() of a _socketobj now releases the underlying
  socket again, which then gets closed as it becomes unreferenced.

- Bug #1504333: Make sgmllib support angle brackets in quoted
  attribute values.

- Bug #853506: Fix IPv6 address parsing in unquoted attributes in
  sgmllib ('[' and ']' were not accepted).

- Fix a bug in the turtle module's end_fill function.

- Bug #1510580: The 'warnings' module improperly required that a Warning
  category be either a types.ClassType and a subclass of Warning.  The proper
  check is just that it is a subclass with Warning as the documentation states.

- The compiler module now correctly compiles the new try-except-finally
  statement (bug #1509132).

- The wsgiref package is now installed properly on Unix.

- A bug was fixed in logging.config.fileConfig() which caused a crash on
  shutdown when fileConfig() was called multiple times.

- The sqlite3 module did cut off data from the SQLite database at the first
  null character before sending it to a custom converter. This has been fixed
  now.

Extension Modules
-----------------

- #1494314: Fix a regression with high-numbered sockets in 2.4.3. This
  means that select() on sockets > FD_SETSIZE (typically 1024) work again.
  The patch makes sockets use poll() internally where available.

- Assigning None to pointer type fields in ctypes structures possible
  overwrote the wrong fields, this is fixed now.

- Fixed a segfault in _ctypes when ctypes.wintypes were imported
  on non-Windows platforms.

- Bug #1518190: The ctypes.c_void_p constructor now accepts any
  integer or long, without range checking.

- Patch #1517790: It is now possible to use custom objects in the ctypes
  foreign function argtypes sequence as long as they provide a from_param
  method, no longer is it required that the object is a ctypes type.

- The '_ctypes' extension module now works when Python is configured
  with the --without-threads option.

- Bug #1513646: os.access on Windows now correctly determines write
  access, again.

- Bug #1512695: cPickle.loads could crash if it was interrupted with
  a KeyboardInterrupt.

- Bug #1296433: parsing XML with a non-default encoding and
  a CharacterDataHandler could crash the interpreter in pyexpat.

- Patch #1516912: improve Modules support for OpenVMS.

Build
-----

- Automate Windows build process for the Win64 SSL module.

- 'configure' now detects the zlib library the same way as distutils.
  Previously, the slight difference could cause compilation errors of the
  'zlib' module on systems with more than one version of zlib.

- The MSI compileall step was fixed to also support a TARGETDIR
  with spaces in it.

- Bug #1517388: sqlite3.dll is now installed on Windows independent
  of Tcl/Tk.

- Bug #1513032: 'make install' failed on FreeBSD 5.3 due to lib-old
  trying to be installed even though it's empty.

Tests
-----

- Call os.waitpid() at the end of tests that spawn child processes in order
  to minimize resources (zombies).

Documentation
-------------

- Cover ImportWarning, PendingDeprecationWarning and simplefilter() in the
  documentation for the warnings module.

- Patch #1509163: MS Toolkit Compiler no longer available.

- Patch #1504046: Add documentation for xml.etree.


What's New in Python 2.5 beta 1?
================================

*Release date: 20-JUN-2006*

Core and builtins
-----------------

- Patch #1507676: Error messages returned by invalid abstract object operations
  (such as iterating over an integer) have been improved and now include the
  type of the offending object to help with debugging.

- Bug #992017: A classic class that defined a __coerce__() method that returned
  its arguments swapped would infinitely recurse and segfault the interpreter.

- Fix the socket tests so they can be run concurrently.

- Removed 5 integers from C frame objects (PyFrameObject).
  f_nlocals, f_ncells, f_nfreevars, f_stack_size, f_restricted.

- Bug #532646: object.__call__() will continue looking for the __call__
  attribute on objects until one without one is found.  This leads to recursion
  when you take a class and set its __call__ attribute to an instance of the
  class.  Originally fixed for classic classes, but this fix is for new-style.
  Removes the infinite_rec_3 crasher.

- The string and unicode methods startswith() and endswith() now accept
  a tuple of prefixes/suffixes to look for. Implements RFE #1491485.

- Buffer objects, at the C level, never used the char buffer
  implementation even when the char buffer for the wrapped object was
  explicitly requested (originally returned the read or write buffer).
  Now a TypeError is raised if the char buffer is not present but is
  requested.

- Patch #1346214: Statements like "if 0: suite" are now again optimized
  away like they were in Python 2.4.

- Builtin exceptions are now full-blown new-style classes instead of
  instances pretending to be classes, which speeds up exception handling
  by about 80% in comparison to 2.5a2.

- Patch #1494554: Update unicodedata.numeric and unicode.isnumeric to
  Unicode 4.1.

- Patch #921466: sys.path_importer_cache is now used to cache valid and
  invalid file paths for the built-in import machinery which leads to
  fewer open calls on startup.

- Patch #1442927: ``long(str, base)`` is now up to 6x faster for non-power-
  of-2 bases.  The largest speedup is for inputs with about 1000 decimal
  digits.  Conversion from non-power-of-2 bases remains quadratic-time in
  the number of input digits (it was and remains linear-time for bases
  2, 4, 8, 16 and 32).

- Bug #1334662: ``int(string, base)`` could deliver a wrong answer
  when ``base`` was not 2, 4, 8, 10, 16 or 32, and ``string`` represented
  an integer close to ``sys.maxint``.  This was repaired by patch
  #1335972, which also gives a nice speedup.

- Patch #1337051: reduced size of frame objects.

- PyErr_NewException now accepts a tuple of base classes as its
  "base" parameter.

- Patch #876206: function call speedup by retaining allocated frame
  objects.

- Bug #1462152: file() now checks more thoroughly for invalid mode
  strings and removes a possible "U" before passing the mode to the
  C library function.

- Patch #1488312, Fix memory alignment problem on SPARC in unicode

- Bug #1487966: Fix SystemError with conditional expression in assignment

- WindowsError now has two error code attributes: errno, which carries
  the error values from errno.h, and winerror, which carries the error
  values from winerror.h. Previous versions put the winerror.h values
  (from GetLastError()) into the errno attribute.

- Patch #1475845: Raise IndentationError for unexpected indent.

- Patch #1479181: split open() and file() from being aliases for each other.

- Patch #1497053 & bug #1275608: Exceptions occurring in ``__eq__()``
  methods were always silently ignored by dictionaries when comparing keys.
  They are now passed through (except when using the C API function
  ``PyDict_GetItem()``, whose semantics did not change).

- Bug #1456209: In some obscure cases it was possible for a class with a
  custom ``__eq__()`` method to confuse dict internals when class instances
  were used as a dict's keys and the ``__eq__()`` method mutated the dict.
  No, you don't have any code that did this ;-)

Extension Modules
-----------------

- Bug #1295808: expat symbols should be namespaced in pyexpat

- Patch #1462338: Upgrade pyexpat to expat 2.0.0

- Change binascii.hexlify to accept a read-only buffer instead of only a char
  buffer and actually follow its documentation.

- Fixed a potentially invalid memory access of CJKCodecs' shift-jis decoder.

- Patch #1478788 (modified version): The functional extension module has
  been renamed to _functools and a functools Python wrapper module added.
  This provides a home for additional function related utilities that are
  not specifically about functional programming. See PEP 309.

- Patch #1493701: performance enhancements for struct module.

- Patch #1490224: time.altzone is now set correctly on Cygwin.

- Patch #1435422: zlib's compress and decompress objects now have a
  copy() method.

- Patch #1454481: thread stack size is now tunable at runtime for thread
  enabled builds on Windows and systems with Posix threads support.

- On Win32, os.listdir now supports arbitrarily-long Unicode path names
  (up to the system limit of 32K characters).

- Use Win32 API to implement os.{access,chdir,chmod,mkdir,remove,rename,rmdir,utime}.
  As a result, these functions now raise WindowsError instead of OSError.

- ``time.clock()`` on Win64 should use the high-performance Windows
  ``QueryPerformanceCounter()`` now (as was already the case on 32-bit
  Windows platforms).

- Calling Tk_Init twice is refused if the first call failed as that
  may deadlock.

- bsddb: added the DB_ARCH_REMOVE flag and fixed db.DBEnv.log_archive() to
  accept it without potentially using an uninitialized pointer.

- bsddb: added support for the DBEnv.log_stat() and DBEnv.lsn_reset() methods
  assuming BerkeleyDB >= 4.0 and 4.4 respectively.  [pybsddb project SF
  patch numbers 1494885 and 1494902]

- bsddb: added an interface for the BerkeleyDB >= 4.3 DBSequence class.
  [pybsddb project SF patch number 1466734]

- bsddb: fix DBCursor.pget() bug with keyword argument names when no data
  parameter is supplied.  [SF pybsddb bug #1477863]

- bsddb: the __len__ method of a DB object has been fixed to return correct
  results.  It could previously incorrectly return 0 in some cases.
  Fixes SF bug 1493322 (pybsddb bug 1184012).

- bsddb: the bsddb.dbtables Modify method now raises the proper error and
  aborts the db transaction safely when a modifier callback fails.
  Fixes SF python patch/bug #1408584.

- bsddb: multithreaded DB access using the simple bsddb module interface
  now works reliably.  It has been updated to use automatic BerkeleyDB
  deadlock detection and the bsddb.dbutils.DeadlockWrap wrapper to retry
  database calls that would previously deadlock. [SF python bug #775414]

- Patch #1446489: add support for the ZIP64 extensions to zipfile.

- Patch #1506645: add Python wrappers for the curses functions
  is_term_resized, resize_term and resizeterm.

Library
-------

- Patch #815924: Restore ability to pass type= and icon= in tkMessageBox
  functions.

- Patch #812986: Update turtle output even if not tracing.

- Patch #1494750: Destroy master after deleting children in
  Tkinter.BaseWidget.

- Patch #1096231: Add ``default`` argument to Tkinter.Wm.wm_iconbitmap.

- Patch #763580: Add name and value arguments to Tkinter variable
  classes.

- Bug #1117556: SimpleHTTPServer now tries to find and use the system's
  mime.types file for determining MIME types.

- Bug #1339007: Shelf objects now don't raise an exception in their
  __del__ method when initialization failed.

- Patch #1455898: The MBCS codec now supports the incremental mode for
  double-byte encodings.

- ``difflib``'s ``SequenceMatcher.get_matching_blocks()`` was changed to
  guarantee that adjacent triples in the return list always describe
  non-adjacent blocks.  Previously, a pair of matching blocks could end
  up being described by multiple adjacent triples that formed a partition
  of the matching pair.

- Bug #1498146: fix optparse to handle Unicode strings in option help,
  description, and epilog.

- Bug #1366250: minor optparse documentation error.

- Bug #1361643: fix textwrap.dedent() so it handles tabs appropriately;
  clarify docs.

- The wsgiref package has been added to the standard library.

- The functions update_wrapper() and wraps() have been added to the functools
  module. These make it easier to copy relevant metadata from the original
  function when writing wrapper functions.

- The optional ``isprivate`` argument to ``doctest.testmod()``, and the
  ``doctest.is_private()`` function, both deprecated in 2.4, were removed.

- Patch #1359618: Speed up charmap encoder by using a trie structure
  for lookup.

- The functions in the ``pprint`` module now sort dictionaries by key
  before computing the display.  Before 2.5, ``pprint`` sorted a dictionary
  if and only if its display required more than one line, although that
  wasn't documented.  The new behavior increases predictability; e.g.,
  using ``pprint.pprint(a_dict)`` in a doctest is now reliable.

- Patch #1497027: try HTTP digest auth before basic auth in urllib2
  (thanks for J. J. Lee).

- Patch #1496206: improve urllib2 handling of passwords with respect to
  default HTTP and HTTPS ports.

- Patch #1080727: add "encoding" parameter to doctest.DocFileSuite.

- Patch #1281707: speed up gzip.readline.

- Patch #1180296: Two new functions were added to the locale module:
  format_string() to get the effect of  "format % items" but locale-aware,
  and currency() to format a monetary number with currency sign.

- Patch #1486962: Several bugs in the turtle Tk demo module were fixed
  and several features added, such as speed and geometry control.

- Patch #1488881: add support for external file objects in bz2 compressed
  tarfiles.

- Patch #721464: pdb.Pdb instances can now be given explicit stdin and
  stdout arguments, making it possible to redirect input and output
  for remote debugging.

- Patch #1484695: Update the tarfile module to version 0.8. This fixes
  a couple of issues, notably handling of long file names using the
  GNU LONGNAME extension.

- Patch #1478292. ``doctest.register_optionflag(name)`` shouldn't create a
  new flag when ``name`` is already the name of an option flag.

- Bug #1385040: don't allow "def foo(a=1, b): pass" in the compiler
  package.

- Patch #1472854: make the rlcompleter.Completer class usable on non-
  UNIX platforms.

- Patch #1470846: fix urllib2 ProxyBasicAuthHandler.

- Bug #1472827: correctly escape newlines and tabs in attribute values in
  the saxutils.XMLGenerator class.


Build
-----

- Bug #1502728: Correctly link against librt library on HP-UX.

- OpenBSD 3.9 is supported now.

- Patch #1492356: Port to Windows CE.

- Bug/Patch #1481770: Use .so extension for shared libraries on HP-UX for ia64.

- Patch #1471883: Add --enable-universalsdk.

C API
-----

Tests
-----

Tools
-----

Documentation
-------------



What's New in Python 2.5 alpha 2?
=================================

*Release date: 27-APR-2006*

Core and builtins
-----------------

- Bug #1465834: 'bdist_wininst preinstall script support' was fixed
  by converting these apis from macros into exported functions again:

    PyParser_SimpleParseFile PyParser_SimpleParseString PyRun_AnyFile
    PyRun_AnyFileEx PyRun_AnyFileFlags PyRun_File PyRun_FileEx
    PyRun_FileFlags PyRun_InteractiveLoop PyRun_InteractiveOne
    PyRun_SimpleFile PyRun_SimpleFileEx PyRun_SimpleString
    PyRun_String Py_CompileString

- Under COUNT_ALLOCS, types are not necessarily immortal anymore.

- All uses of PyStructSequence_InitType have been changed to initialize
  the type objects only once, even if the interpreter is initialized
  multiple times.

- Bug #1454485, array.array('u') could crash the interpreter.  This was
  due to PyArgs_ParseTuple(args, 'u#', ...) trying to convert buffers (strings)
  to unicode when it didn't make sense.  'u#' now requires a unicode string.

- Py_UNICODE is unsigned.  It was always documented as unsigned, but
  due to a bug had a signed value in previous versions.

- Patch #837242: ``id()`` of any Python object always gives a positive
  number now, which might be a long integer. ``PyLong_FromVoidPtr`` and
  ``PyLong_AsVoidPtr`` have been changed accordingly.  Note that it has
  never been correct to implement a ``__hash()__`` method that returns the
  ``id()`` of an object:

      def __hash__(self):
          return id(self)  # WRONG

  because a hash result must be a (short) Python int but it was always
  possible for ``id()`` to return a Python long.  However, because ``id()``
  could return negative values before, on a 32-bit box an ``id()`` result
  was always usable as a hash value before this patch.  That's no longer
  necessarily so.

- Python on OS X 10.3 and above now uses dlopen() (via dynload_shlib.c)
  to load extension modules and now provides the dl module. As a result,
  sys.setdlopenflags() now works correctly on these systems. (SF patch
  #1454844)

- Patch #1463867: enhanced garbage collection to allow cleanup of cycles
  involving generators that have paused outside of any ``try`` or ``with``
  blocks.  (In 2.5a1, a paused generator that was part of a reference
  cycle could not be garbage collected, regardless of whether it was
  paused in a ``try`` or ``with`` block.)

Extension Modules
-----------------

- Patch #1191065: Fix preprocessor problems on systems where recvfrom
  is a macro.

- Bug #1467952: os.listdir() now correctly raises an error if readdir()
  fails with an error condition.

- Fixed bsddb.db.DBError derived exceptions so they can be unpickled.

- Bug #1117761: bsddb.*open() no longer raises an exception when using
  the cachesize parameter.

- Bug #1149413: bsddb.*open() no longer raises an exception when using
  a temporary db (file=None) with the 'n' flag to truncate on open.

- Bug #1332852: bsddb module minimum BerkeleyDB version raised to 3.3
  as older versions cause excessive test failures.

- Patch #1062014: AF_UNIX sockets under Linux have a special
  abstract namespace that is now fully supported.

Library
-------

- Bug #1223937: subprocess.CalledProcessError reports the exit status
  of the process using the returncode attribute, instead of
  abusing errno.

- Patch #1475231: ``doctest`` has a new ``SKIP`` option, which causes
  a doctest to be skipped (the code is not run, and the expected output
  or exception is ignored).

- Fixed contextlib.nested to cope with exceptions being raised and
  caught inside exit handlers.

- Updated optparse module to Optik 1.5.1 (allow numeric constants in
  hex, octal, or binary; add ``append_const`` action; keep going if
  gettext cannot be imported; added ``OptionParser.destroy()`` method;
  added ``epilog`` for better help generation).

- Bug #1473760: ``tempfile.TemporaryFile()`` could hang on Windows, when
  called from a thread spawned as a side effect of importing a module.

- The pydoc module now supports documenting packages contained in
  .zip or .egg files.

- The pkgutil module now has several new utility functions, such
  as ``walk_packages()`` to support working with packages that are either
  in the filesystem or zip files.

- The mailbox module can now modify and delete messages from
  mailboxes, in addition to simply reading them.  Thanks to Gregory
  K. Johnson for writing the code, and to the 2005 Google Summer of
  Code for funding his work.

- The ``__del__`` method of class ``local`` in module ``_threading_local``
  returned before accomplishing any of its intended cleanup.

- Patch #790710: Add breakpoint command lists in pdb.

- Patch #1063914: Add Tkinter.Misc.clipboard_get().

- Patch #1191700: Adjust column alignment in bdb breakpoint lists.

- SimpleXMLRPCServer relied on the fcntl module, which is unavailable on
  Windows. Bug #1469163.

- The warnings, linecache, inspect, traceback, site, and doctest modules
  were updated to work correctly with modules imported from zipfiles or
  via other PEP 302 __loader__ objects.

- Patch #1467770: Reduce usage of subprocess._active to processes which
  the application hasn't waited on.

- Patch #1462222: Fix Tix.Grid.

- Fix exception when doing glob.glob('anything*/')

- The pstats.Stats class accepts an optional stream keyword argument to
  direct output to an alternate file-like object.

Build
-----

- The Makefile now has a reindent target, which runs reindent.py on
  the library.

- Patch #1470875: Building Python with MS Free Compiler

- Patch #1161914: Add a python-config script.

- Patch #1324762:Remove ccpython.cc; replace --with-cxx with
  --with-cxx-main. Link with C++ compiler only if --with-cxx-main was
  specified. (Can be overridden by explicitly setting LINKCC.) Decouple
  CXX from --with-cxx-main, see description in README.

- Patch #1429775: Link extension modules with the shared libpython.

- Fixed a libffi build problem on MIPS systems.

- ``PyString_FromFormat``, ``PyErr_Format``, and ``PyString_FromFormatV``
  now accept formats "%u" for unsigned ints, "%lu" for unsigned longs,
  and "%zu" for unsigned integers of type ``size_t``.

Tests
-----

- test_contextlib now checks contextlib.nested can cope with exceptions
  being raised and caught inside exit handlers.

- test_cmd_line now checks operation of the -m and -c command switches

- The test_contextlib test in 2.5a1 wasn't actually run unless you ran
  it separately and by hand.  It also wasn't cleaning up its changes to
  the current Decimal context.

- regrtest.py now has a -M option to run tests that test the new limits of
  containers, on 64-bit architectures. Running these tests is only sensible
  on 64-bit machines with more than two gigabytes of memory. The argument
  passed is the maximum amount of memory for the tests to use.

Tools
-----

- Added the Python benchmark suite pybench to the Tools/ directory;
  contributed by Marc-Andre Lemburg.

Documentation
-------------

- Patch #1473132: Improve docs for ``tp_clear`` and ``tp_traverse``.

- PEP 343: Added Context Types section to the library reference
  and attempted to bring other PEP 343 related documentation into
  line with the implementation and/or python-dev discussions.

- Bug #1337990: clarified that ``doctest`` does not support examples
  requiring both expected output and an exception.


What's New in Python 2.5 alpha 1?
=================================

*Release date: 05-APR-2006*

Core and builtins
-----------------

- PEP 338: -m command line switch now delegates to runpy.run_module
  allowing it to support modules in packages and zipfiles

- On Windows, .DLL is not an accepted file name extension for
  extension modules anymore; extensions are only found if they
  end in .PYD.

- Bug #1421664: sys.stderr.encoding is now set to the same value as
  sys.stdout.encoding.

- __import__ accepts keyword arguments.

- Patch #1460496: round() now accepts keyword arguments.

- Fixed bug #1459029 - unicode reprs were double-escaped.

- Patch #1396919: The system scope threads are reenabled on FreeBSD
  5.4 and later versions.

- Bug #1115379: Compiling a Unicode string with an encoding declaration
  now gives a SyntaxError.

- Previously, Python code had no easy way to access the contents of a
  cell object. Now, a ``cell_contents`` attribute has been added
  (closes patch #1170323).

- Patch #1123430: Python's small-object allocator now returns an arena to
  the system ``free()`` when all memory within an arena becomes unused
  again.  Prior to Python 2.5, arenas (256KB chunks of memory) were never
  freed.  Some applications will see a drop in virtual memory size now,
  especially long-running applications that, from time to time, temporarily
  use a large number of small objects.  Note that when Python returns an
  arena to the platform C's ``free()``, there's no guarantee that the
  platform C library will in turn return that memory to the operating system.
  The effect of the patch is to stop making that impossible, and in tests it
  appears to be effective at least on Microsoft C and gcc-based systems.
  Thanks to Evan Jones for hard work and patience.

- Patch #1434038: property() now uses the getter's docstring if there is
  no "doc" argument given. This makes it possible to legitimately use
  property() as a decorator to produce a read-only property.

- PEP 357, patch 1436368: add an __index__ method to int/long and a matching
  nb_index slot to the PyNumberMethods struct.  The slot is consulted instead
  of requiring an int or long in slicing and a few other contexts, enabling
  other objects (e.g. Numeric Python's integers) to be used as slice indices.

- Fixed various bugs reported by Coverity's Prevent tool.

- PEP 352, patch #1104669: Make exceptions new-style objects.  Introduced the
  new exception base class, BaseException, which has a new message attribute.
  KeyboardInterrupt and SystemExit to directly inherit from BaseException now.
  Raising a string exception now raises a DeprecationWarning.

- Patch #1438387, PEP 328: relative and absolute imports. Imports can now be
  explicitly relative, using 'from .module import name' to mean 'from the same
  package as this module is in. Imports without dots still default to the
  old relative-then-absolute, unless 'from __future__ import
  absolute_import' is used.

- Properly check if 'warnings' raises an exception (usually when a filter set
  to "error" is triggered) when raising a warning for raising string
  exceptions.

- CO_GENERATOR_ALLOWED is no longer defined. This behavior is the default.
  The name was removed from Include/code.h.

- PEP 308: conditional expressions were added: (x if cond else y).

- Patch 1433928:
  - The copy module now "copies" function objects (as atomic objects).
  - dict.__getitem__ now looks for a __missing__ hook before raising
    KeyError.

- PEP 343: with statement implemented. Needs ``from __future__ import
  with_statement``. Use of 'with' as a variable will generate a warning.
  Use of 'as' as a variable will also generate a warning (unless it's
  part of an import statement).
  The following objects have __context__ methods:
  - The built-in file type.
  - The thread.LockType type.
  - The following types defined by the threading module:
    Lock, RLock, Condition, Semaphore, BoundedSemaphore.
  - The decimal.Context class.

- Fix the encodings package codec search function to only search
  inside its own package. Fixes problem reported in patch #1433198.

  Note: Codec packages should implement and register their own
  codec search function. PEP 100 has the details.

- PEP 353: Using ``Py_ssize_t`` as the index type.

- ``PYMALLOC_DEBUG`` builds now add ``4*sizeof(size_t)`` bytes of debugging
  info to each allocated block, since the ``Py_ssize_t`` changes (PEP 353)
  now allow Python to make use of memory blocks exceeding 2**32 bytes for
  some purposes on 64-bit boxes.  A ``PYMALLOC_DEBUG`` build was limited
  to 4-byte allocations before.

- Patch #1400181, fix unicode string formatting to not use the locale.
  This is how string objects work.  u'%f' could use , instead of .
  for the decimal point.  Now both strings and unicode always use periods.

- Bug #1244610, #1392915, fix build problem on OpenBSD 3.7 and 3.8.
  configure would break checking curses.h.

- Bug #959576: The pwd module is now builtin. This allows Python to be
  built on UNIX platforms without $HOME set.

- Bug #1072182, fix some potential problems if characters are signed.

- Bug #889500, fix line number on SyntaxWarning for global declarations.

- Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter.

- Support for converting hex strings to floats no longer works.
  This was not portable.  float('0x3') now raises a ValueError.

- Patch #1382163: Expose Subversion revision number to Python.  New C API
  function Py_GetBuildNumber().  New attribute sys.subversion.  Build number
  is now displayed in interactive prompt banner.

- Implementation of PEP 341 - Unification of try/except and try/finally.
  "except" clauses can now be written together with a "finally" clause in
  one try statement instead of two nested ones.  Patch #1355913.

- Bug #1379994: Builtin unicode_escape and raw_unicode_escape codec
  now encodes backslash correctly.

- Patch #1350409: Work around signal handling bug in Visual Studio 2005.

- Bug #1281408: Py_BuildValue now works correctly even with unsigned longs
  and long longs.

- SF Bug #1350188, "setdlopenflags" leads to crash upon "import"
  It was possible for dlerror() to return a NULL pointer, so
  it will now use a default error message in this case.

- Replaced most Unicode charmap codecs with new ones using the
  new Unicode translate string feature in the builtin charmap
  codec; the codecs were created from the mapping tables available
  at ftp.unicode.org and contain a few updates (e.g. the Mac OS
  encodings now include a mapping for the Apple logo)

- Added a few more codecs for Mac OS encodings

- Sped up some Unicode operations.

- A new AST parser implementation was completed. The abstract
  syntax tree is available for read-only (non-compile) access
  to Python code; an _ast module was added.

- SF bug #1167751: fix incorrect code being produced for generator expressions.
  The following code now raises a SyntaxError:  foo(a = i for i in range(10))

- SF Bug #976608: fix SystemError when mtime of an imported file is -1.

- SF Bug #887946: fix segfault when redirecting stdin from a directory.
  Provide a warning when a directory is passed on the command line.

- Fix segfault with invalid coding.

- SF bug #772896: unknown encoding results in MemoryError.

- All iterators now have a Boolean value of True.  Formerly, some iterators
  supported a __len__() method which evaluated to False when the iterator
  was empty.

- On 64-bit platforms, when __len__() returns a value that cannot be
  represented as a C int, raise OverflowError.

- test__locale is skipped on OS X < 10.4 (only partial locale support is
  present).

- SF bug #893549: parsing keyword arguments was broken with a few format
  codes.

- Changes donated by Elemental Security to make it work on AIX 5.3
  with IBM's 64-bit compiler (SF patch #1284289).  This also closes SF
  bug #105470: test_pwd fails on 64bit system (Opteron).

- Changes donated by Elemental Security to make it work on HP-UX 11 on
  Itanium2 with HP's 64-bit compiler (SF patch #1225212).

- Disallow keyword arguments for type constructors that don't use them
  (fixes bug #1119418).

- Forward UnicodeDecodeError into SyntaxError for source encoding errors.

- SF bug #900092: When tracing (e.g. for hotshot), restore 'return' events for
  exceptions that cause a function to exit.

- The implementation of set() and frozenset() was revised to use its
  own internal data structure.  Memory consumption is reduced by 1/3
  and there are modest speed-ups as well.  The API is unchanged.

- SF bug #1238681:  freed pointer is used in longobject.c:long_pow().

- SF bug #1229429: PyObject_CallMethod failed to decrement some
  reference counts in some error exit cases.

- SF bug #1185883:  Python's small-object memory allocator took over
  a block managed by the platform C library whenever a realloc specified
  a small new size.  However, there's no portable way to know then how
  much of the address space following the pointer is valid, so there's no
  portable way to copy data from the C-managed block into Python's
  small-object space without risking a memory fault.  Python's small-object
  realloc now leaves such blocks under the control of the platform C
  realloc.

- SF bug #1232517: An overflow error was not detected properly when
  attempting to convert a large float to an int in os.utime().

- SF bug #1224347: hex longs now print with lowercase letters just
  like their int counterparts.

- SF bug #1163563: the original fix for bug #1010677 ("thread Module
  Breaks PyGILState_Ensure()") broke badly in the case of multiple
  interpreter states; back out that fix and do a better job (see
  http://mail.python.org/pipermail/python-dev/2005-June/054258.html
  for a longer write-up of the problem).

- SF patch #1180995: marshal now uses a binary format by default when
  serializing floats.

- SF patch #1181301: on platforms that appear to use IEEE 754 floats,
  the routines that promise to produce IEEE 754 binary representations
  of floats now simply copy bytes around.

- bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP
  278.

- patch #1109424: int, long, float, complex, and unicode now check for the
  proper magic slot for type conversions when subclassed.  Previously the
  magic slot was ignored during conversion.  Semantics now match the way
  subclasses of str always behaved.  int/long/float, conversion of an instance
  to the base class has been moved to the proper nb_* magic slot and out of
  PyNumber_*().
  Thanks Walter D�rwald.

- Descriptors defined in C with a PyGetSetDef structure, where the setter is
  NULL, now raise an AttributeError when attempting to set or delete the
  attribute.  Previously a TypeError was raised, but this was inconsistent
  with the equivalent pure-Python implementation.

- It is now safe to call PyGILState_Release() before
  PyEval_InitThreads() (note that if there is reason to believe there
  are multiple threads around you still must call PyEval_InitThreads()
  before using the Python API; this fix is for extension modules that
  have no way of knowing if Python is multi-threaded yet).

- Typing Ctrl-C whilst raw_input() was waiting in a build with threads
  disabled caused a crash.

- Bug #1165306: instancemethod_new allowed the creation of a method
  with im_class == im_self == NULL, which caused a crash when called.

- Move exception finalisation later in the shutdown process - this
  fixes the crash seen in bug #1165761

- Added two new builtins, any() and all().

- Defining a class with empty parentheses is now allowed
  (e.g., ``class C(): pass`` is no longer a syntax error).
  Patch #1176012 added support to the 'parser' module and 'compiler' package
  (thanks to logistix for that added support).

- Patch #1115086: Support PY_LONGLONG in structmember.

- Bug #1155938: new style classes did not check that __init__() was
  returning None.

- Patch #802188: Report characters after line continuation character
  ('\') with a specific error message.

- Bug #723201: Raise a TypeError for passing bad objects to 'L' format.

- Bug #1124295: the __name__ attribute of file objects was
  inadvertently made inaccessible in restricted mode.

- Bug #1074011: closing sys.std{out,err} now causes a flush() and
  an ferror() call.

- min() and max() now support key= arguments with the same meaning as in
  list.sort().

- The peephole optimizer now performs simple constant folding in expressions:
      (2+3) --> (5).

- set and frozenset objects can now be marshalled.  SF #1098985.

- Bug #1077106: Poor argument checking could cause memory corruption
  in calls to os.read().

- The parser did not complain about future statements in illegal
  positions.  It once again reports a syntax error if a future
  statement occurs after anything other than a doc string.

- Change the %s format specifier for str objects so that it returns a
  unicode instance if the argument is not an instance of basestring and
  calling __str__ on the argument returns a unicode instance.

- Patch #1413181:  changed ``PyThreadState_Delete()`` to forget about the
  current thread state when the auto-GIL-state machinery knows about
  it (since the thread state is being deleted, continuing to remember it
  can't help, but can hurt if another thread happens to get created with
  the same thread id).

Extension Modules
-----------------

- Patch #1380952: fix SSL objects timing out on consecutive read()s

- Patch #1309579: wait3 and wait4 were added to the posix module.

- Patch #1231053: The audioop module now supports encoding/decoding of alaw.
  In addition, the existing ulaw code was updated.

- RFE #567972: Socket objects' family, type and proto properties are
  now exposed via new attributes.

- Everything under lib-old was removed.  This includes the following modules:
    Para, addpack, cmp, cmpcache, codehack, dircmp, dump, find, fmt, grep,
    lockfile, newdir, ni, packmail, poly, rand, statcache, tb, tzparse,
    util, whatsound, whrandom, zmod

- The following modules were removed:  regsub, reconvert, regex, regex_syntax.

- re and sre were swapped, so help(re) provides full help.  importing sre
  is deprecated.  The undocumented re.engine variable no longer exists.

- Bug #1448490: Fixed a bug that ISO-2022 codecs could not handle
  SS2 (single-shift 2) escape sequences correctly.

- The unicodedata module was updated to the 4.1 version of the Unicode
  database. The 3.2 version is still available as unicodedata.db_3_2_0
  for applications that require this specific version (such as IDNA).

- The timing module is no longer built by default.  It was deprecated
  in PEP 4 in Python 2.0 or earlier.

- Patch 1433928: Added a new type, defaultdict, to the collections module.
  This uses the new __missing__ hook behavior added to dict (see above).

- Bug #854823: socketmodule now builds on Sun platforms even when
  INET_ADDRSTRLEN is not defined.

- Patch #1393157: os.startfile() now has an optional argument to specify
  a "command verb" to invoke on the file.

- Bug #876637, prevent stack corruption when socket descriptor
  is larger than FD_SETSIZE.

- Patch #1407135, bug #1424041: harmonize mmap behavior of anonymous memory.
  mmap.mmap(-1, size) now returns anonymous memory in both Unix and Windows.
  mmap.mmap(0, size) should not be used on Windows for anonymous memory.

- Patch #1422385: The nis module now supports access to domains other
  than the system default domain.

- Use Win32 API to implement os.stat/fstat. As a result, subsecond timestamps
  are reported, the limit on path name lengths is removed, and stat reports
  WindowsError now (instead of OSError).

- Add bsddb.db.DBEnv.set_tx_timestamp allowing time based database recovery.

- Bug #1413192, fix seg fault in bsddb if a transaction was deleted
  before the env.

- Patch #1103116: Basic AF_NETLINK support.

- Bug #1402308, (possible) segfault when using mmap.mmap(-1, ...)

- Bug #1400822, _curses over{lay,write} doesn't work when passing 6 ints.
  Also fix ungetmouse() which did not accept arguments properly.
  The code now conforms to the documented signature.

- Bug #1400115, Fix segfault when calling curses.panel.userptr()
  without prior setting of the userptr.

- Fix 64-bit problems in bsddb.

- Patch #1365916: fix some unsafe 64-bit mmap methods.

- Bug #1290333: Added a workaround for cjkcodecs' _codecs_cn build
  problem on AIX.

- Bug #869197: os.setgroups rejects long integer arguments

- Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint

- Bug #1344508, Fix UNIX mmap leaking file descriptors

- Patch #1338314, Bug #1336623: fix tarfile so it can extract
  REGTYPE directories from tarfiles written by old programs.

- Patch #1407992, fixes broken bsddb module db associate when using
  BerkeleyDB 3.3, 4.0 or 4.1.

- Get bsddb module to build with BerkeleyDB version 4.4

- Get bsddb module to build with BerkeleyDB version 3.2

- Patch #1309009, Fix segfault in pyexpat when the XML document is in latin_1,
  but Python incorrectly assumes it is in UTF-8 format

- Fix parse errors in the readline module when compiling without threads.

- Patch #1288833: Removed thread lock from socket.getaddrinfo on
  FreeBSD 5.3 and later versions which got thread-safe getaddrinfo(3).

- Patches #1298449 and #1298499: Add some missing checks for error
  returns in cStringIO.c.

- Patch #1297028: fix segfault if call type on MultibyteCodec,
  MultibyteStreamReader, or MultibyteStreamWriter

- Fix memory leak in posix.access().

- Patch #1213831: Fix typo in unicodedata._getcode.

- Bug #1007046: os.startfile() did not accept unicode strings encoded in
  the file system encoding.

- Patch #756021: Special-case socket.inet_aton('255.255.255.255') for
  platforms that don't have inet_aton().

- Bug #1215928: Fix bz2.BZ2File.seek() for 64-bit file offsets.

- Bug #1191043: Fix bz2.BZ2File.(x)readlines for files containing one
  line without newlines.

- Bug #728515: mmap.resize() now resizes the file on Unix as it did
  on Windows.

- Patch #1180695: Add nanosecond stat resolution, and st_gen,
  st_birthtime for FreeBSD.

- Patch #1231069: The fcntl.ioctl function now uses the 'I' code for
  the request code argument, which results in more C-like behaviour
  for large or negative values.

- Bug #1234979: For the argument of thread.Lock.acquire, the Windows
  implementation treated all integer values except 1 as false.

- Bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly.

- Patch #1212117: os.stat().st_flags is now accessible as a attribute
  if available on the platform.

- Patch #1103951: Expose O_SHLOCK and O_EXLOCK in the posix module if
  available on the platform.

- Bug #1166660: The readline module could segfault if hook functions
  were set in a different thread than that which called readline.

- collections.deque objects now support a remove() method.

- operator.itemgetter() and operator.attrgetter() now support retrieving
  multiple fields.  This provides direct support for sorting on multiple
  keys (primary, secondary, etc).

- os.access now supports Unicode path names on non-Win32 systems.

- Patches #925152, #1118602: Avoid reading after the end of the buffer
  in pyexpat.GetInputContext.

- Patches #749830, #1144555: allow UNIX mmap size to default to current
  file size.

- Added functional.partial().  See PEP309.

- Patch #1093585: raise a ValueError for negative history items in readline.
  {remove_history,replace_history}

- The spwd module has been added, allowing access to the shadow password
  database.

- stat_float_times is now True.

- array.array objects are now picklable.

- the cPickle module no longer accepts the deprecated None option in the
  args tuple returned by __reduce__().

- itertools.islice() now accepts None for the start and step arguments.
  This allows islice() to work more readily with slices:
      islice(s.start, s.stop, s.step)

- datetime.datetime() now has a strptime class method which can be used to
  create datetime object using a string and format.

- Patch #1117961: Replace the MD5 implementation from RSA Data Security Inc
  with the implementation from http://sourceforge.net/projects/libmd5-rfc/.

Library
-------

- Patch #1388073: Numerous __-prefixed attributes of unittest.TestCase have
  been renamed to have only a single underscore prefix.  This was done to
  make subclassing easier.

- PEP 338: new module runpy defines a run_module function to support
  executing modules which provide access to source code or a code object
  via the PEP 302 import mechanisms.

- The email module's parsedate_tz function now sets the daylight savings
  flag to -1 (unknown) since it can't tell from the date whether it should
  be set.

- Patch #624325: urlparse.urlparse() and urlparse.urlsplit() results
  now sport attributes that provide access to the parts of the result.

- Patch #1462498: sgmllib now handles entity and character references
  in attribute values.

- Added the sqlite3 package. This is based on pysqlite2.1.3, and provides
  a DB-API interface in the standard library. You'll need sqlite 3.0.8 or
  later to build this - if you have an earlier version, the C extension
  module will not be built.

- Bug #1460340: ``random.sample(dict)`` failed in various ways.  Dicts
  aren't officially supported here, and trying to use them will probably
  raise an exception some day.  But dicts have been allowed, and "mostly
  worked", so support for them won't go away without warning.

- Bug #1445068: getpass.getpass() can now be given an explicit stream
  argument to specify where to write the prompt.

- Patch #1462313, bug #1443328: the pickle modules now can handle classes
  that have __private names in their __slots__.

- Bug #1250170: mimetools now handles socket.gethostname() failures gracefully.

- patch #1457316: "setup.py upload" now supports --identity to select the
  key to be used for signing the uploaded code.

- Queue.Queue objects now support .task_done() and .join() methods
  to make it easier to monitor when daemon threads have completed
  processing all enqueued tasks.  Patch #1455676.

- popen2.Popen objects now preserve the command in a .cmd attribute.

- Added the ctypes ffi package.

- email 4.0 package now integrated.  This is largely the same as the email 3.0
  package that was included in Python 2.3, except that PEP 8 module names are
  now used (e.g. mail.message instead of email.Message).  The MIME classes
  have been moved to a subpackage (e.g. email.mime.text instead of
  email.MIMEText).  The old names are still supported for now.  Several
  deprecated Message methods have been removed and lots of bugs have been
  fixed.  More details can be found in the email package documentation.

- Patches #1436130/#1443155: codecs.lookup() now returns a CodecInfo object
  (a subclass of tuple) that provides incremental decoders and encoders
  (a way to use stateful codecs without the stream API). Python functions
  codecs.getincrementaldecoder() and codecs.getincrementalencoder() as well
  as C functions PyCodec_IncrementalEncoder() and PyCodec_IncrementalDecoder()
  have been added.

- Patch #1359365: Calling next() on a closed StringIO.String object raises
  a ValueError instead of a StopIteration now (like file and cString.String do).
  cStringIO.StringIO.isatty() will raise a ValueError now if close() has been
  called before (like file and StringIO.StringIO do).

- A regrtest option -w was added to re-run failed tests in verbose mode.

- Patch #1446372: quit and exit can now be called from the interactive
  interpreter to exit.

- The function get_count() has been added to the gc module, and gc.collect()
  grew an optional 'generation' argument.

- A library msilib to generate Windows Installer files, and a distutils
  command bdist_msi have been added.

- PEP 343: new module contextlib.py defines decorator @contextmanager
  and helpful context managers nested() and closing().

- The compiler package now supports future imports after the module docstring.

- Bug #1413790: zipfile now sanitizes absolute archive names that are
  not allowed by the specs.

- Patch #1215184: FileInput now can be given an opening hook which can
  be used to control how files are opened.

- Patch #1212287: fileinput.input() now has a mode parameter for
  specifying the file mode input files should be opened with.

- Patch #1215184: fileinput now has a fileno() function for getting the
  current file number.

- Patch #1349274: gettext.install() now optionally installs additional
  translation functions other than _() in the builtin namespace.

- Patch #1337756: fileinput now accepts Unicode filenames.

- Patch #1373643: The chunk module can now read chunks larger than
  two gigabytes.

- Patch #1417555: SimpleHTTPServer now returns Last-Modified headers.

- Bug #1430298: It is now possible to send a mail with an empty
  return address using smtplib.

- Bug #1432260: The names of lambda functions are now properly displayed
  in pydoc.

- Patch #1412872: zipfile now sets the creator system to 3 (Unix)
  unless the system is Win32.

- Patch #1349118: urllib now supports user:pass@ style proxy
  specifications, raises IOErrors when proxies for unsupported protocols
  are defined, and uses the https proxy on https redirections.

- Bug #902075: urllib2 now supports 'host:port' style proxy specifications.

- Bug #1407902: Add support for sftp:// URIs to urlparse.

- Bug #1371247: Update Windows locale identifiers in locale.py.

- Bug #1394565: SimpleHTTPServer now doesn't choke on query parameters
  any more.

- Bug #1403410: The warnings module now doesn't get confused
  when it can't find out the module name it generates a warning for.

- Patch #1177307: Added a new codec utf_8_sig for UTF-8 with a BOM signature.

- Patch #1157027: cookielib mishandles RFC 2109 cookies in Netscape mode

- Patch #1117398: cookielib.LWPCookieJar and .MozillaCookieJar now raise
  LoadError as documented, instead of IOError.  For compatibility,
  LoadError subclasses IOError.

- Added the hashlib module.  It provides secure hash functions for MD5 and
  SHA1, 224, 256, 384, and 512.  Note that recent developments make the
  historic MD5 and SHA1 unsuitable for cryptographic-strength applications.
  In <http://mail.python.org/pipermail/python-dev/2005-December/058850.html>
  Ronald L. Rivest offered this advice for Python:

      "The consensus of researchers in this area (at least as
      expressed at the NIST Hash Function Workshop 10/31/05),
      is that SHA-256 is a good choice for the time being, but
      that research should continue, and other alternatives may
      arise from this research.  The larger SHA's also seem OK."

- Added a subset of Fredrik Lundh's ElementTree package.  Available
  modules are xml.etree.ElementTree, xml.etree.ElementPath, and
  xml.etree.ElementInclude, from ElementTree 1.2.6.

- Patch #1162825: Support non-ASCII characters in IDLE window titles.

- Bug #1365984: urllib now opens "data:" URLs again.

- Patch #1314396: prevent deadlock for threading.Thread.join() when an exception
  is raised within the method itself on a previous call (e.g., passing in an
  illegal argument)

- Bug #1340337: change time.strptime() to always return ValueError when there
  is an error in the format string.

- Patch #754022: Greatly enhanced webbrowser.py (by Oleg Broytmann).

- Bug #729103: pydoc.py: Fix docother() method to accept additional
  "parent" argument.

- Patch #1300515: xdrlib.py: Fix pack_fstring() to really use null bytes
  for padding.

- Bug #1296004: httplib.py: Limit maximal amount of data read from the
  socket to avoid a MemoryError on Windows.

- Patch #1166948: locale.py: Prefer LC_ALL, LC_CTYPE and LANG over LANGUAGE
  to get the correct encoding.

- Patch #1166938: locale.py: Parse LANGUAGE as a colon separated list of
  languages.

- Patch #1268314: Cache lines in StreamReader.readlines for performance.

- Bug #1290505: Fix clearing the regex cache for time.strptime().

- Bug #1167128: Fix size of a symlink in a tarfile to be 0.

- Patch #810023: Fix off-by-one bug in urllib.urlretrieve reporthook
  functionality.

- Bug #1163178: Make IDNA return an empty string when the input is empty.

- Patch #848017: Make Cookie more RFC-compliant. Use CRLF as default output
  separator and do not output trailing semicolon.

- Patch #1062060: urllib.urlretrieve() now raises a new exception, named
  ContentTooShortException, when the actually downloaded size does not
  match the Content-Length header.

- Bug #1121494: distutils.dir_utils.mkpath now accepts Unicode strings.

- Bug #1178484: Return complete lines from codec stream readers
  even if there is an exception in later lines, resulting in
  correct line numbers for decoding errors in source code.

- Bug #1192315: Disallow negative arguments to clear() in pdb.

- Patch #827386: Support absolute source paths in msvccompiler.py.

- Patch #1105730: Apply the new implementation of commonprefix in posixpath
  to ntpath, macpath, os2emxpath and riscospath.

- Fix a problem in Tkinter introduced by SF patch #869468: delete bogus
  __hasattr__ and __delattr__ methods on class Tk that were breaking
  Tkdnd.

- Bug #1015140: disambiguated the term "article id" in nntplib docs and
  docstrings to either "article number" or "message id".

- Bug #1238170: threading.Thread.__init__ no longer has "kwargs={}" as a
  parameter, but uses the usual "kwargs=None".

- textwrap now processes text chunks at O(n) speed instead of O(n**2).
  Patch #1209527 (Contributed by Connelly).

- urllib2 has now an attribute 'httpresponses' mapping from HTTP status code
  to W3C name (404 -> 'Not Found'). RFE #1216944.

- Bug #1177468: Don't cache the /dev/urandom file descriptor for os.urandom,
  as this can cause problems with apps closing all file descriptors.

- Bug #839151: Fix an attempt to access sys.argv in the warnings module;
  it can be missing in embedded interpreters

- Bug #1155638: Fix a bug which affected HTTP 0.9 responses in httplib.

- Bug #1100201: Cross-site scripting was possible on BaseHTTPServer via
  error messages.

- Bug #1108948: Cookie.py produced invalid JavaScript code.

- The tokenize module now detects and reports indentation errors.
  Bug #1224621.

- The tokenize module has a new untokenize() function to support a full
  roundtrip from lexed tokens back to Python source code.  In addition,
  the generate_tokens() function now accepts a callable argument that
  terminates by raising StopIteration.

- Bug #1196315: fix weakref.WeakValueDictionary constructor.

- Bug #1213894: os.path.realpath didn't resolve symlinks that were the first
  component of the path.

- Patch #1120353: The xmlrpclib module provides better, more transparent,
  support for datetime.{datetime,date,time} objects.  With use_datetime set
  to True, applications shouldn't have to fiddle with the DateTime wrapper
  class at all.

- distutils.commands.upload was added to support uploading distribution
  files to PyPI.

- distutils.commands.register now encodes the data as UTF-8 before posting
  them to PyPI.

- decimal operator and comparison methods now return NotImplemented
  instead of raising a TypeError when interacting with other types.  This
  allows other classes to implement __radd__ style methods and have them
  work as expected.

- Bug #1163325:  Decimal infinities failed to hash.  Attempting to
  hash a NaN raised an InvalidOperation instead of a TypeError.

- Patch #918101: Add tarfile open mode r|* for auto-detection of the
  stream compression; add, for symmetry reasons, r:* as a synonym of r.

- Patch #1043890: Add extractall method to tarfile.

- Patch #1075887: Don't require MSVC in distutils if there is nothing
  to build.

- Patch #1103407: Properly deal with tarfile iterators when untarring
  symbolic links on Windows.

- Patch #645894: Use getrusage for computing the time consumption in
  profile.py if available.

- Patch #1046831: Use get_python_version where appropriate in sysconfig.py.

- Patch #1117454: Remove code to special-case cookies without values
  in LWPCookieJar.

- Patch #1117339: Add cookielib special name tests.

- Patch #1112812: Make bsddb/__init__.py more friendly for modulefinder.

- Patch #1110248: SYNC_FLUSH the zlib buffer for GZipFile.flush.

- Patch #1107973: Allow to iterate over the lines of a tarfile.ExFileObject.

- Patch #1104111: Alter setup.py --help and --help-commands.

- Patch #1121234: Properly cleanup _exit and tkerror commands.

- Patch #1049151: xdrlib now unpacks booleans as True or False.

- Fixed bug in a NameError bug in cookielib.  Patch #1116583.

- Applied a security fix to SimpleXMLRPCserver (PSF-2005-001).  This
  disables recursive traversal through instance attributes, which can
  be exploited in various ways.

- Bug #1222790: in SimpleXMLRPCServer, set the reuse-address and close-on-exec
  flags on the HTTP listening socket.

- Bug #792570: SimpleXMLRPCServer had problems if the request grew too large.
  Fixed by reading the HTTP body in chunks instead of one big socket.read().

- Patches #893642, #1039083: add allow_none, encoding arguments to
  constructors of SimpleXMLRPCServer and CGIXMLRPCRequestHandler.

- Bug #1110478: Revert os.environ.update to do putenv again.

- Bug #1103844: fix distutils.install.dump_dirs() with negated options.

- os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience.

- Enhancements to the csv module:

  + Dialects are now validated by the underlying C code, better
    reflecting its capabilities, and improving its compliance with
    PEP 305.
  + Dialect parameter parsing has been re-implemented to improve error
    reporting.
  + quotechar=None and quoting=QUOTE_NONE now work the way PEP 305
    dictates.
  + the parser now removes the escapechar prefix from escaped characters.
  + when quoting=QUOTE_NONNUMERIC, the writer now tests for numeric
    types, rather than any object that can be represented as a numeric.
  + when quoting=QUOTE_NONNUMERIC, the reader now casts unquoted fields
    to floats.
  + reader now allows \r characters to be quoted (previously it only allowed
    \n to be quoted).
  + writer doublequote handling improved.
  + Dialect classes passed to the module are no longer instantiated by
    the module before being parsed (the former validation scheme required
    this, but the mechanism was unreliable).
  + The dialect registry now contains instances of the internal
    C-coded dialect type, rather than references to python objects.
  + the internal c-coded dialect type is now immutable.
  + register_dialect now accepts the same keyword dialect specifications
    as the reader and writer, allowing the user to register dialects
    without first creating a dialect class.
  + a configurable limit to the size of parsed fields has been added -
    previously, an unmatched quote character could result in the entire
    file being read into the field buffer before an error was reported.
  + A new module method csv.field_size_limit() has been added that sets
    the parser field size limit (returning the former limit). The initial
    limit is 128kB.
  + A line_num attribute has been added to the reader object, which tracks
    the number of lines read from the source iterator. This is not
    the same as the number of records returned, as records can span
    multiple lines.
  + reader and writer objects were not being registered with the cyclic-GC.
    This has been fixed.

- _DummyThread objects in the threading module now delete self.__block that is
  inherited from _Thread since it uses up a lock allocated by 'thread'.  The
  lock primitives tend to be limited in number and thus should not be wasted on
  a _DummyThread object.  Fixes bug #1089632.

- The imghdr module now detects Exif files.

- StringIO.truncate() now correctly adjusts the size attribute.
  (Bug #951915).

- locale.py now uses an updated locale alias table (built using
  Tools/i18n/makelocalealias.py, a tool to parse the X11 locale
  alias file); the encoding lookup was enhanced to use Python's
  encoding alias table.

- moved deprecated modules to Lib/lib-old:  whrandom, tzparse, statcache.

- the pickle module no longer accepts the deprecated None option in the
  args tuple returned by __reduce__().

- optparse now optionally imports gettext.  This allows its use in setup.py.

- the pickle module no longer uses the deprecated bin parameter.

- the shelve module no longer uses the deprecated binary parameter.

- the pstats module no longer uses the deprecated ignore() method.

- the filecmp module no longer uses the deprecated use_statcache argument.

- unittest.TestCase.run() and unittest.TestSuite.run() can now be successfully
  extended or overridden by subclasses.  Formerly, the subclassed method would
  be ignored by the rest of the module.  (Bug #1078905).

- heapq.nsmallest() and heapq.nlargest() now support key= arguments with
  the same meaning as in list.sort().

- Bug #1076985: ``codecs.StreamReader.readline()`` now calls ``read()`` only
  once when a size argument is given. This prevents a buffer overflow in the
  tokenizer with very long source lines.

- Bug #1083110: ``zlib.decompress.flush()`` would segfault if called
  immediately after creating the object, without any intervening
  ``.decompress()`` calls.

- The reconvert.quote function can now emit triple-quoted strings.  The
  reconvert module now has some simple documentation.

- ``UserString.MutableString`` now supports negative indices in
  ``__setitem__`` and ``__delitem__``

- Bug #1149508: ``textwrap`` now handles hyphenated numbers (eg. "2004-03-05")
  correctly.

- Partial fixes for SF bugs #1163244 and #1175396: If a chunk read by
  ``codecs.StreamReader.readline()`` has a trailing "\r", read one more
  character even if the user has passed a size parameter to get a proper
  line ending. Remove the special handling of a "\r\n" that has been split
  between two lines.

- Bug #1251300: On UCS-4 builds the "unicode-internal" codec will now complain
  about illegal code points. The codec now supports PEP 293 style error
  handlers.

- Bug #1235646: ``codecs.StreamRecoder.next()`` now reencodes the data it reads
  from the input stream, so that the output is a byte string in the correct
  encoding instead of a unicode string.

- Bug #1202493: Fixing SRE parser to handle '{}' as perl does, rather than
  considering it exactly like a '*'.

- Bug #1245379: Add "unicode-1-1-utf-7" as an alias for "utf-7" to
  ``encodings.aliases``.

- ` uu.encode()`` and ``uu.decode()`` now support unicode filenames.

- Patch #1413711: Certain patterns of differences were making difflib
  touch the recursion limit.

- Bug #947906: An object oriented interface has been added to the calendar
  module. It's possible to generate HTML calendar now and the module can be
  called as a script (e.g. via ``python -mcalendar``). Localized month and
  weekday names can be ouput (even if an exotic encoding is used) using
  special classes that use unicode.

Build
-----

- Fix test_float, test_long, and test_struct failures on Tru64 with gcc
  by using -mieee gcc option.

- Patch #1432345: Make python compile on DragonFly.

- Build support for Win64-AMD64 was added.

- Patch #1428494: Prefer linking against ncursesw over ncurses library.

- Patch #881820: look for openpty and forkpty also in libbsd.

- The sources of zlib are now part of the Python distribution (zlib 1.2.3).
  The zlib module is now builtin on Windows.

- Use -xcode=pic32 for CCSHARED on Solaris with SunPro.

- Bug #1189330: configure did not correctly determine the necessary
  value of LINKCC if python was built with GCC 4.0.

- Upgrade Windows build to zlib 1.2.3 which eliminates a potential security
  vulnerability in zlib 1.2.1 and 1.2.2.

- EXTRA_CFLAGS has been introduced as an environment variable to hold compiler
  flags that change binary compatibility.  Changes were also made to
  distutils.sysconfig to also use the environment variable when used during
  compilation of the interpreter and of C extensions through distutils.

- SF patch 1171735: Darwin 8's headers are anal about POSIX compliance,
  and linking has changed (prebinding is now deprecated, and libcc_dynamic
  no longer exists). This configure patch makes things right.

- Bug #1158607: Build with --disable-unicode again.

- spwdmodule.c is built only if either HAVE_GETSPNAM or HAVE_HAVE_GETSPENT is
  defined.  Discovered as a result of not being able to build on OS X.

- setup.py now uses the directories specified in LDFLAGS using the -L option
  and in CPPFLAGS using the -I option for adding library and include
  directories, respectively, for compiling extension modules against.  This has
  led to the core being compiled using the values in CPPFLAGS.  It also removes
  the need for the special-casing of both DarwinPorts and Fink for darwin since
  the proper directories can be specified in LDFLAGS (``-L/sw/lib`` for Fink,
  ``-L/opt/local/lib`` for DarwinPorts) and CPPFLAGS (``-I/sw/include`` for
  Fink, ``-I/opt/local/include`` for DarwinPorts).

- Test in configure.in that checks for tzset no longer dependent on tm->tm_zone
  to exist in the struct (not required by either ISO C nor the UNIX 2 spec).
  Tests for sanity in tzname when HAVE_TZNAME defined were also defined.
  Closes bug #1096244.  Thanks Gregory Bond.

C API
-----

- ``PyMem_{Del, DEL}`` and ``PyMem_{Free, FREE}`` no longer map to
  ``PyObject_{Free, FREE}``.  They map to the system ``free()`` now.  If memory
  is obtained via the ``PyObject_`` family, it must be released via the
  ``PyObject_`` family, and likewise for the ``PyMem_`` family.  This has
  always been officially true, but when Python's small-object allocator was
  introduced, an attempt was made to cater to a few extension modules
  discovered at the time that obtained memory via ``PyObject_New`` but
  released it via ``PyMem_DEL``.  It's years later, and if such code still
  exists it will fail now (probably with segfaults, but calling wrong
  low-level memory management functions can yield many symptoms).

- Added a C API for set and frozenset objects.

- Removed PyRange_New().

- Patch #1313939: PyUnicode_DecodeCharmap() accepts a unicode string as the
  mapping argument now. This string is used as a mapping table. Byte values
  greater than the length of the string and 0xFFFE are treated as undefined
  mappings.


Tests
-----

- In test_os, st_?time is now truncated before comparing it with ST_?TIME.

- Patch #1276356: New resource "urlfetch" is implemented.  This enables
  even impatient people to run tests that require remote files.


Documentation
-------------

- Bug #1402224: Add warning to dl docs about crashes.

- Bug #1396471: Document that Windows' ftell() can return invalid
  values for text files with UNIX-style line endings.

- Bug #1274828: Document os.path.splitunc().

- Bug #1190204: Clarify which directories are searched by site.py.

- Bug #1193849: Clarify os.path.expanduser() documentation.

- Bug #1243192: re.UNICODE and re.LOCALE affect \d, \D, \s and \S.

- Bug #755617: Document the effects of os.chown() on Windows.

- Patch #1180012: The documentation for modulefinder is now in the library reference.

- Patch #1213031: Document that os.chown() accepts argument values of -1.

- Bug #1190563: Document os.waitpid() return value with WNOHANG flag.

- Bug #1175022: Correct the example code for property().

- Document the IterableUserDict class in the UserDict module.
  Closes bug #1166582.

- Remove all latent references for "Macintosh" that referred to semantics for
  Mac OS 9 and change to reflect the state for OS X.
  Closes patch #1095802.  Thanks Jack Jansen.

Mac
---


New platforms
-------------

- FreeBSD 7 support is added.


Tools/Demos
-----------

- Created Misc/Vim/vim_syntax.py to auto-generate a python.vim file in that
  directory for syntax highlighting in Vim.  Vim directory was added and placed
  vimrc to it (was previous up a level).

- Added two new files to Tools/scripts: pysource.py, which recursively
  finds Python source files, and findnocoding.py, which finds Python
  source files that need an encoding declaration.
  Patch #784089, credits to Oleg Broytmann.

- Bug #1072853: pindent.py used an uninitialized variable.

- Patch #1177597: Correct Complex.__init__.

- Fixed a display glitch in Pynche, which could cause the right arrow to
  wiggle over by a pixel.

----

**(For information about older versions, consult the HISTORY file.)**
generated by cgit v0.12 at 2025-03-15 21:06:48 (GMT)