diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-win32-2.6.1/NEWS.txt --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-win32-2.6.1/NEWS.txt Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,3283 @@ ++++++++++++ +Python News ++++++++++++ + +(editors: check NEWS.help for information about editing NEWS using ReST.) + +What's New in Python 2.6.1 +========================== + +*Release date: 04-Dec-2008* + +Core and Builtins +----------------- + +- Issue #3996: On Windows, the PyOS_CheckStack function would cause the + interpreter to abort ("Fatal Python error: Could not reset the stack!") + instead of throwing a MemoryError. + +- Issue #4367: Python would segfault during compiling when the unicodedata + module couldn't be imported and \N escapes were present. + +- Issue #4348: Some bytearray methods returned that didn't cause any change to + the bytearray, returned the same bytearray instead of a copy. + +- Issue #4317: Fixed a crash in the imageop.rgb2rgb8() function. + +- Issue #4230: If ``__getattr__`` is a descriptor, it now functions correctly. + +- Issue #4048: The parser module now correctly validates relative imports. + +- Issue #4225: ``from __future__ import unicode_literals`` didn't work in an + exec statement. + +- Issue #4176: Fixed a crash when pickling an object which ``__reduce__`` + method does not return iterators for the 4th and 5th items. + +- Issue #4209: Enabling unicode_literals and the print_function in the same + __future__ import didn't work. + +- On windows, os.chdir given unicode was not working if GetCurrentDirectoryW + returned a path longer than MAX_PATH. (But It's doubtful this code path is + really executed because I cannot move to such directory on win2k) + +- Issue #4069: When set.remove(element) is used with a set element, the element + is temporarily replaced with an equivalent frozenset. But the eventual + KeyError would always report the empty frozenset([]) as the missing key. Now + it correctly refers to the initial element. + +- Fixed C99 style comments in several files. Python is now C89 compatible + again. + +Library +------- + +- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an + exception. + +- Issue #4363: The uuid.uuid1() and uuid.uuid4() functions now work even if + the ctypes module is not present. + +- Issue #4116: Resolve member name conflict in ScrolledCanvas.__init__. + +- Issue #3774: Fixed an error when create a Tkinter menu item without command + and then remove it. + +- Fixed a modulefinder crash on certain relative imports. + +- Issue #4150: Pdb's "up" command now works for generator frames in post-mortem + debugging. + +- Issue #4092: Return ArgInfo as promised in the documentation from + inspect.getargvalues. + +- Issue #3935: Properly support list subclasses in bisect's C implementation. + +- Issue #4014: Don't claim that Python has an Alpha release status, in addition + to claiming it is Mature. + +Build +----- + +- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". + +- Issue #4289: Remove Cancel button from AdvancedDlg. + +- Issue #1656675: Register a drop handler for .py* files on Windows. + +- Issue #4120: Exclude manifest from extension modules in VS2008. + +- Issue #4091: Install pythonxy.dll in system32 again. + +- Issue #4018: Disable "for me" installations on Vista. + +- Issue #3758: Add ``patchcheck`` build target to .PHONY. + +- Issue #4204: Fixed module build errors on FreeBSD 4. + +C-API +----- + +- Issue #4122: On Windows, fix a compilation error when using the + Py_UNICODE_ISSPACE macro in an extension module. + +Extension Modules +----------------- + +- Issue #4365: Add crtassem.h constants to the msvcrt module. + +- Issue #4396: The parser module now correctly validates the with statement. + + +What's New in Python 2.6 final +============================== + +*Release date: 01-Oct-2008* + +Core and Builtins +----------------- + +- Issue #3967: Fixed a crash in the count() and find() methods of string-like + objects, when the "start" parameter is a huge value. + +- Issue #3965: Fixed a crash on Windows when open() is given an invalid + filename or mode, and the filename is a unicode string. + +- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default. + +Library +------- + +- Issue #3965: Allow repeated calls to turtle.Screen, by making it a + true singleton object. + +- Issue #3895: It was possible to crash the interpreter when an external timer + was used with cProfile that returned an object that could not be converted + into a float. + +- Issue #3950: Made turtle respect scale factors. + +- Issue #3547: Fixed ctypes structures bitfields of varying integer + sizes. + +- Issue #3879: A regression in urllib.getproxies_enviroment was fixed. + +- Issue #3863: Disabled a unit test of fork being called from a thread + when running on platforms known to exhibit OS bugs when attempting that. + +Build +----- + +- Bug #3989: Package the 2to3 script (as 2to3.py) in the Windows + installer. + +- Bug #3887: Package x64 version of CRT for AMD64 Windows binaries. + + +What's New in Python 2.6 release candidate 2? +============================================= + +*Release date: 17-Sep-2008* + +Core and Builtins +----------------- + +Extension Modules +----------------- + +- Security Issue #2: imageop did not validate arguments correctly and could + segfault as a result. + +- Issue #3886: Possible integer overflows in the _hashopenssl module were + closed. + +Tools/Demos +----------- + +- Issue #3850: recursion tests in Misc/find_recursion_limit.py can raise + AttributeError instead of RuntimeError, depending in which C API call + exactly the recursion limit is exceeded. Consequently, both exception types + are caught and silenced. + +Build +----- + +- Issue #3617: Include a licensing statement regarding the Microsoft + C runtime in the Windows installer. + + +What's New in Python 2.6 release candidate 1? +============================================= + +*Release date: 12-Sep-2008* + +Core and Builtins +----------------- + +- Issue #3642: Suppress warning in obmalloc when size_t is larger than uint. + +- Issue #3743: In a few places, PY_FORMAT_SIZE_T was incorrectly used with + PyString_FromFormat or PyErr_Format to display size_t values. The macro + PY_FORMAT_SIZE_T is designed to select the correct format for the OS + ``printf`` function, whereas PyString_FromFormat has an independent + implementation and uses "%zd" on all platforms for size_t values. + This makes a difference on win64, where ``printf`` needs "%Id" to display + 64bit values. + +- Issue #3634: _weakref.ref(Exception).__init__() gave invalid return value on + error. + +- Issue #3777: long() applied to a float object now always return a long + object; previously an int would be returned for small values. the __long__ + method is allowed to return either an int or a long, but the behaviour of + float objects should not change to respect backward compatibility. + +- Issue #3751: str.rpartition would perform a left-partition when called with + a unicode argument. + +- Issue #3683: Fix compilation when --without-threads is given. + +- Issue #3668: Fix a memory leak with the "s*" argument parser in + PyArg_ParseTuple and friends, which occurred when the argument for "s*" + was correctly parsed but parsing of subsequent arguments failed. + +- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to + match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__ + mechanism. In the process, fix a bug where isinstance() and issubclass(), + when given a tuple of classes as second argument, were looking up + __instancecheck__ / __subclasscheck__ on the tuple rather than on each + type object. + +- Fix crashes on memory allocation failure found with failmalloc. + +- Fix memory leaks found with valgrind and update suppressions file. + +- Fix compiler warnings in opt mode which would lead to invalid memory reads. + +- Fix problem using wrong name in decimal module reported by pychecker. + +- Silenced another compiler warning about a used but not defined + function 'stringlib_contains_obj'. + +- Added warnings on the use of ``__getslice__``, ``__setslice__``, or + ``__delslice__``. + +- Issue #3678: Correctly pass LDFLAGS and LDLAST to the linker on shared + library targets in the Makefile. + +- Issue #1204: The configure script now tests for additional libraries + that may be required when linking against readline. This fixes issues + with x86_64 builds on some platforms (a few Linux flavors and OpenBSD). + +C-API +----- + +- Aliased PyObject_Bytes to PyObject_Str. + +Library +------- + +- Issue #3640: Pickling a list or a dict uses less local variables, to reduce + stack usage in the case of deeply nested objects. + +- Issue #3629: Fix sre "bytecode" validator for an end case. + +- Issue #3811: The Unicode database was updated to 5.1. + +- Issue #3781: Further warnings.catch_warnings() cleanup to prevent + silent misbehaviour when a single instance is nested in multiple + with statements, or when the methods are invoked in the wrong order. + +- Issue #3809: Fixed spurious 'test.blah' file left behind by test_logging. + +- Issue #3781: Clean up the API for warnings.catch_warnings() by having it + return a list or None rather than a custom object. + +- Issue #1638033: Cookie.Morsel gained the httponly attribute. + +- Issue #3535: zipfile couldn't read some zip files larger than 2GB. + +- Issue #3776: Deprecate the bsddb package for removal in 3.0. + +- Issue #3762: platform.architecture() fails if python is lanched via + its symbolic link. + +- Issue #3772: Fixed regression problem in StreamHandler.emit(). + +- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module + to the urlparse one. Added a PendingDeprecationWarning in the old + module, it will be deprecated in the future. + +- Issue #2562: Fix distutils PKG-INFO writing logic to allow having + non-ascii characters and Unicode in setup.py meta-data. + +- Issue #3726: Allow spaces in separators in logging configuration files. + +- Issue #3719: platform.architecture() fails if there are spaces in the + path to the Python binary. + +- Issue 3602: Moved test.test_support.catch_warning() to + warnings.catch_warnings() along with some API cleanup. Expanding the tests + for catch_warnings() also led to an improvement in the raising of a + DeprecationWarning related to warnings.warn_explicit(). + +- The deprecation warnings for the old camelCase threading API were removed. + +- logging: fixed lack of use of encoding attribute specified on a stream. + +- Silenced a trivial compiler warning in the sqlite module. + +- Fixed two format strings in the _collections module. + +- Issue #3703: _fileio.FileIO gave unhelpful error message when trying to open a + directory. + +- Issue #3708: os.urandom no longer goes into an infinite loop when passed a + non-integer floating point number. + +- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing + SEM_VALUE_MAX. + +Extension Modules +----------------- + +- Issue #2975: When compiling several extension modules with Visual Studio 2008 + from the same python interpreter, some environment variables would grow + without limit. + +- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by + exploitation of poor argument checking. + +- sqlite3: Changed docstring of iterdump() to mark method as "Non-standard". + +- Issue #3103: Reduced globals symbols used by sqlite3 module and made sure all + remaining ones have "pysqlite_" prefix. + +- Issue #3846: Release the GIL during sqlite3_prepare calls. This improves + concurrent access to the same SQLite database from multiple + threads/processes. + +Tests +----- + +- Issue #3781: Add test.test_support.check_warnings() as a convenience + wrapper for warnings.catch_warnings() that makes it easier to check + that expected warning messages are being reported. + +- Issue #3796: Some tests functions were not enabled in test_float. + +- Issue #3768: Move test_py3kwarn over to the new API for catch_warnings(). + +Build +----- + +- Issue #3833: Use a different upgrade code for Win64 installers. + +- Issue #2271: Set SecureCustomProperties so that installation will properly + use the TARGETDIR even for unprivileged users. + +- Allow passing the MSI file name to merge.py. + +- Issue #3758: Rename the 'check' target to 'patchcheck' so as to not clash + with GNU build target guidelines. + + +What's New in Python 2.6 beta 3? +================================ + +*Release date: 20-Aug-2008* + +Core and Builtins +----------------- + +- Issue #1878: Remove Py_TPFLAGS_HAVE_VERSION_TAG from + Py_TPFLAGS_DEFAULT when not building the core. This means 3rd party + extensions do not automatically benefit from the class attribute + cache; they will have to explicitly add Py_TPFLAGS_HAVE_VERSION_TAG + to their tp_flags field if they care. This is a backwards + compatibility feature; in 3.0, all types will use the cache by + default. + +- Keyword arguments can now follow starred arguments. (``f(a, *args, + keyword=23)`` is now valid syntax.) + +- ctypes function pointers that are COM methods have a boolean True + value again. + +- Issue #3139: Make buffer-interface thread-safe wrt. PyArg_ParseTuple, + by denying s# to parse objects that have a releasebuffer procedure, + and introducing s*. + +- Issue #3537: Fix an assertion failure when an empty but presized dict + object was stored in the freelist. + +- Issue #1481296: Make long(float('nan')) and int(float('nan')) raise + ValueError consistently across platforms. + +- Issue #3479: On platforms where sizeof(int) is smaller than sizeof(long) + (64bit Unix, for example), unichr() would truncate its argument and return + u'\x00' for unichr(2**32). Now it properly raises an OverflowError. + +- Apply security patches from Apple. + +- Issue #2542: Now that issubclass() may call arbitrary code, ensure that + PyErr_ExceptionMatches returns 0 when an exception occurs there. + +- Issue #1819: function calls with several named parameters are now on + average 35% faster (as measured by pybench). + +- Issue #2378: An unexpected UnboundLocalError or NameError could appear when + the python debugger steps into a class statement: the free variables (local + variables defined in an outer scope) would be deleted from the outer scope. + +- Issue #2620: Overflow checking when allocating or reallocating memory + was not always being done properly in some python types and extension + modules. PyMem_MALLOC, PyMem_REALLOC, PyMem_NEW and PyMem_RESIZE have + all been updated to perform better checks and places in the code that + would previously leak memory on the error path when such an allocation + failed have been fixed. + +Library +------- + +- Issue #3612: Added some missing basic types in ctypes.wintypes. + +- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of + symtable.Symbol have been deprecated for removal in 3.0 and the next release. + +- Issue #2234: distutils failed for some versions of the cygwin compiler. The + version reported by these tools does not necessarily follow the python + version numbering scheme, so the module is less strict when parsing it. + +- Issue #2235: Added Py3k warnings for types which will become unhashable + under the stricter __hash__ inheritance rules in 3.0. Several types + which did not meet the rules for hash invariants and were already + unhashable in 3.0 have now been explicitly flagged as unhashable in + 2.6 as well (collections.Mapping, collections.Set, unittest.TestSuite, + xml.dom.minidom.NamedNodeMap, numbers.Number, UserList.UserList) + +- Update __all__ for cookielib, csv, os, urllib2, and weakref to include things + imported into the module but exposed as part of the module's API. + +- Remove an unneeded import of abc.ABCMeta from 'inspect'. + +- Remove unneeded imports of 'sys' and 'warnings' from 'io'. + +- Remove unneeded imports of 'warnings' from shelve, filecmp, and dummy_thread. + +- Issue #3575: Incremental decoder's decode function now takes bytearray + by using 's*' instead of 't#'. + +- Issue #2222: Fixed reference leak when occured os.rename() + fails unicode conversion on 2nd parameter. (windows only) + +- Issue 2464. urllib2 now supports a malformation in the URL received + in a redirect. + +- Silence the DeprecationWarning raised when importing mimetools in + BaseHTTPServer, cgi (and rfc822), httplib. + +- Issue #2776: fixed small issue when handling an URL with double slash + after a 302 response in the case of not going through a proxy. + +- Issue #2676: in the email package, content-type parsing was hanging on + pathological input because of quadratic or exponential behaviour of a + regular expression. + +- Issue #3476: binary buffered reading through the new "io" library is now + thread-safe. + +- Silence the DeprecationWarning of rfc822 when it is imported by mimetools + since mimetools itself is deprecated. Because modules are cached, all + subsequent imports of rfc822 will not raise a visible DeprecationWarning. + +- Issue #3134: shutil referenced undefined WindowsError symbol. + +- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to + menu entries were not deleted. + +- Copied the implementation of reduce() to _functools.reduce() to have a + version that did not raise a DeprecationWarning under -3. + +- Issue #3205: When iterating over a BZ2File fails allocating memory, raise + a MemoryError rather than silently stop the iteration. + +- Issue #3487: sre "bytecode" validator. Passing invalid "re-bytecode" + to _sre.compile() will now be rejected. This should not affect anybody + since the re.compile() function never generates invalid re-bytecode. + +- Issue #3436: Make csv.DictReader's fieldnames attribute a property so that + upon first access it can be automatically initialized from the csv file if + it wasn't initialized during instantiation. + +- Issue #2338: Create imp.reload() to help with transitioning to Python 3.0 as + the reload() built-in has been removed. + +- Changed code in the following modules/packages to remove warnings raised + while running under the ``-3`` flag: aifc, asynchat, asyncore, bdb, bsddb, + ConfigParser, cookielib, csv, difflib, distutils, DocXMLRPCServer, email, + filecmp, fileinput, inspect, logging, modulefinder, pdb, pickle, profile, + pstats, pydoc, re, rlcompleter, SimpleXMLRPCServer, shelve, socket, + subprocess, sqlite3, tarfile, Tkinter, test.test_support, textwrap, + threading, tokenize, traceback, urlparse, wsgiref, xml, xmlrpclib. + +- Issue #3039: Fix tarfile.TarFileCompat.writestr() which always + raised an AttributeError. + +- Issue #2523: Fix quadratic behaviour when read()ing a binary file without + asking for a specific length. This problem only affected files opened + using the new "io" module, not the built-in open() function. + +- Issue #3449: Update decimal module to use most recent specification + (v. 1.68) and tests (v. 2.58) from IBM. + +- Issue 3437: Bug fix in robotparser parsing of Allow: lines. + +- Issue 1592: Improve error reporting when operations are attempted + on a closed shelf. + +- Deprecate the "ast" parser function aliases. + +- Issue #3120: On 64-bit Windows the subprocess module was truncating handles. + +- Issue #3303: Fix a crash in locale.strcoll() when calling it with + invalid arguments. + +- Issue #3302: Fix several crashes when calling locale's gettext functions + with None arguments. + +- Issue #3389: Allow resolving dotted names for handlers in logging + configuration files. + +- Deprecate the sunaudio module for removal in Python 3.0. + +- Issue #3394: zipfile.writestr sets external attributes when passed a + file name rather than a ZipInfo instance, so files are extracted with + mode 0600 rather than 000 under Unix. + +- Issue #1857: subprocess.Popen.poll gained an additional _deadstate keyword + argument in python 2.5, this broke code that subclassed Popen to include its + own poll method. Fixed my moving _deadstate to an _internal_poll method. + +Build +----- + +- Generate the PatternGrammar pickle during "make install". + +Documentation +------------- + +- Issue #2235: the C API function PyObject_HashNotImplemented and its + interaction with the tp_hash slot (added in 2.6b2) are now documented + +- Issue #643841: The language reference now provides more detailed + coverage of the lookup process for special methods. The disclaimers + regarding lack of coverage of new-style classes have also been + removed, since the coverage is now fairly reasonable. + + +What's New in Python 2.6 beta 2? +================================ + +*Release date: 17-Jul-2008* + +Core and Builtins +----------------- + +- Issue #3156: Fix inconsistent behavior of the bytearray type: all + its methods now allow for items objects that can be converted to + an integer using operator.index(). + +- Issue #3360: Fix incorrect parsing of '020000000000.0', which + produced a ValueError instead of giving the correct float. + +- Issue #3083: Add alternate (#) formatting for bin, oct, hex output + for str.format(). This adds the prefix 0b, 0o, or 0x, respectively. + +- Issue #3008: the float type has a new instance method 'float.hex' + and a new class method 'float.fromhex' to convert floating-point + numbers to and from hexadecimal strings, respectively. + +- Issue #2235: __hash__ is once again inherited by default. To allow + collections.Hashable to remain meaningful in the presence of the + default hash implementation (object.__hash__), it is now possible + to explicit block inheritance of hash by setting __hash__=None at + the Python level, or tp_hash=PyObject_HashNotImplemented at the C + level. + +- Issue #3221: Issue a RuntimeWarning instead of raising SystemError if + the parent module cannot be found while performing an absolute import. + This means that an incorrectly defined __package__ attribute will + now only prevent relative imports in that module rather than causing + all imports from that module to fail. + +- Issue #2517: Allow unicode messages in Exceptions again by correctly + bypassing the instance dictionary when looking up __unicode__ on + new-style classes. + +- Issue #3242: Fix a crash inside the print statement, if sys.stdout is + set to a custom object whose write() method happens to install + another file in sys.stdout. + +- Issue #3088: Corrected a race condition in classes derived from + threading.local: the first member set by a thread could be saved in + another thread's dictionary. + +- Issue #3004: Minor change to slice.indices(): the start and stop + arguments are now treated identically, making the behaviour easier + to describe and understand. For example, slice(None, -10, + 1).indices(9) now returns (0, 0, 1) instead of (0, -1, 1), and + slice(None, 10, -1).indices(10) returns (9, 9, -1) instead of (9, + 10, -1). + +- Issue #3219: Calling a function with repeated keyword arguments, + f(a=2, a=23), would not cause a syntax error. This was a regression + from 2.4 caused by the switch to the new compiler. + +- Issue #2862: Make int and float freelist management consistent with + other freelists. Changes their CompactFreeList apis into + ClearFreeList apis and calls them via gc.collect(). + +Library +------- + +- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python + api functions without holding the GIL, which could lead to a fatal + error when they failed. + +- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects. + +- Issue #3395: fix reference in test_multiprocessing to old debugInfo method + +- Issue #3312: Fix two crashes in sqlite3. + +- Issue #1608818: Fix misbehavior in os.listdir() if readdir() fails. + +- Issue #3125: Remove copy_reg in multiprocessing and replace it with + ForkingPickler.register() to resolve conflict with ctypes. + +- Issue #3090: Fixed ARCHFLAGS parsing on OS/X + +- Issue #3313: Fixed a crash when a failed dlopen() call does not set + a valid dlerror() message. + +- Issue #3258: Fixed a crash when a ctypes POINTER type to an + incomplete structure was created. + +- Issue #3339: dummy_thread.acquire() should not return None. + +- Issue #3285: Fractions from_float() and from_decimal() accept Integral arguments. + +- Issue #3301: Bisect module behaved badly when lo was negative. + +- Issue #839496: SimpleHTTPServer used to open text files in text mode. This is + both unnecessary (HTTP allows text content to be sent in several forms) and + wrong because the actual transmitted size could differ from the + content-length. The problem had been corrected in the 2.4 branch, but never + merged into trunk. + +- Issue #2663: add filtering capability to shutil.copytree(). + +- Issue #1622: Correct interpretation of various ZIP header fields. + +- Issue #1526: Allow more than 64k files to be added to Zip64 file. + +- Issue #1746: Correct handling of zipfile archive comments (previously + archives with comments over 4k were flagged as invalid). Allow writing + Zip files with archives by setting the 'comment' attribute of a ZipFile. + +- Issue #449227: The rlcompleter module now adds "(" to callable objects + when completed. + +- Issue #3190: Pydoc now hides the automatic module attribute __package__ (the + handling is now the same as that of other special attributes like __name__). + +- Issue #2885 (partial): The urllib.urlopen() function has been deprecated for + removal in Python 3.0 in favor of urllib2.urlopen(). + +- Issue #2113: Fix error in subprocess.Popen if the select system call is + interrupted by a signal. + +- Issue #3309: Fix bz2.BZFile iterator to release its internal lock + properly when raising an exception due to the bz2file being closed. + Prevents a deadlock. + +- Issue #3094: httplib.HTTPSConnection Host: headers no longer include the + redundant ":443" port number designation when the connection is using the + default https port (443). + +- Issue #874900: after an os.fork() call the threading module state is cleaned + up in the child process to prevent deadlock and report proper thread counts + if the new process uses the threading module. + +Tests +----- + +- test.test_support.catch_warning now keeps track of all warnings it sees + and is now better documented. Explicit unit tests for this context manager + have been added to test_warnings. + +Build +----- + +- Issue #3215: Build sqlite3 as sqlite3.dll, not sqlite3.pyd. + + +Documentation +------------- + +- Document that robotparser has been renamed to urllib.robotparser in + Python 3.0. + +- Document that urlparse has been renamed to urllib.parse in Python 3.0. + +- Document that urllib2 is split across multiple modules and renamed in + Python 3.0. + +- Document that urllib is split across multiple modules and renamed in + Python 3.0. + + +What's New in Python 2.6 beta 1? +================================ + +*Release date: 18-June-2008* + +Core and Builtins +----------------- + +- Issue #3211: warnings.warn_explicit() did not guard against its 'registry' + argument being anything other than a dict or None. Also fixed a bug in error + handling when 'message' and 'category' were both set to None, triggering a + bus error. + +- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which + holds the last (strong) reference to its referent. + +- Add future_builtins.ascii(). + +- Several set methods now accept multiple arguments: update(), union(), + intersection(), intersection_update(), difference(), and difference_update(). + +- Issue #2898: Added sys.getsizeof() to retrieve size of objects in bytes. + +- New environment variable PYTHONIOENCODING. + +- Patch #2488: Add sys.maxsize. + +- Issue #2353: file.xreadlines() now emits a Py3k warning. + +- Issue #2863: generators now have a ``gen.__name__`` attribute that + equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals + ``func.func_code.co_name``. The repr() of a generator now also + contains this name. + +- Issue #2831: enumerate() now has a ``start`` argument. + +- Issue #2801: fix bug in the float.is_integer method where a + ValueError was sometimes incorrectly raised. + +- Issue #2790: sys.flags was not properly exposing its bytes_warning + attribute. + +- Issue #2196: hasattr() now lets exceptions which do not inherit + Exception (KeyboardInterrupt, and SystemExit) propagate instead of + ignoring them. + +- Added checks for integer overflows, contributed by Google. Some are + only available if asserts are left in the code, in cases where they + can't be triggered from Python code. + + +Extension Modules +----------------- +- Issue #1179: [CVE-2007-4965] Integer overflow in imageop module. + +- Issue #3116: marshal.dumps() had quadratic behavior for strings > 32Mb. + +- Issue #2138: Add factorial() to the math module. + +- The heapq module does comparisons using LT instead of LE. This + makes its implementation match that used by list.sort(). + +- Issue #2819: add full-precision summation function to math module, + based on Hettinger's ASPN Python Cookbook recipe. + +- Issue #2592: delegate nb_index and the floor/truediv slots in + weakref.proxy. + +- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the + platform. + +- Support for Windows 9x has been removed from the winsound module. + +- bsddb module updated to version 4.7.3. + http://www.jcea.es/programacion/pybsddb.htm#bsddb3-4.7.3. This + code should be compatible with Python 3.0. + +- Issue #2858: Fix potential memory corruption when + bsddb.db.DBEnv.lock_get and other bsddb.db object constructors + raised an exception. + +- Issue #2669: bsddb/__init__.py iteration no longer silently fails when + the database has changed size during iteration. It now raises a + RuntimeError in the same manner as a dictionary. + +- Issue #2870: cmathmodule.c compile error. + +- Added a threading.Thread.ident property. + +Library +------- + +- logging.config: Removed out-of-date comment in _install_handlers and + used issubclass in place of equality comparison of classes. + +- Issue #2722: Now the os.getcwd() supports very long path names. + +- Issue #2888: Fixed the behaviour of pprint when working with nested + structures, to match the behaviour of 2.5 and 3.0 (now follows the common + sense). + +- Issue #1817: cgi now correctly handles the querystring on POST requests + +- Issue #3136: fileConfig()'s disabling of old loggers is now conditional via + an optional disable_existing_loggers parameter, but the default value is + such that the old behaviour is preserved. Thanks to Leandro Lucarella for + the patch. + +- Issue #3126: StreamHandler and FileHandler check before calling "flush" and + "close" that the stream object has these, using hasattr (thanks to bobf for + the patch). + +- Issue #2912: platform.uname now tries to determine unknown information even if + os.uname exists. + +- The rfc822 module has been deprecated for removal in 3.0. + +- The mimetools module has been deprecated for removal in 3.0. + +- The ctypes.byref function now takes an optional second parameter + which allows to specify an offset in bytes for the constructed + pointer-like object. + +- Added the ast module. + +- Added the multiprocessing module, PEP 371. + +- Factored out the indentation cleaning from inspect.getdoc() into + inspect.cleandoc() to ease standalone use. + +- Issue #1798: Add ctypes calling convention that allows safe access + to errno. + +- Issue #2404: ctypes objects support the new pep3118 buffer interface. + +- Patch #2125: Add GetInteger and GetString methods for + msilib.Record objects. + +- Issue #2782: The datetime module's strftime methods now accept + unicode format strings just as time.strftime always has. + +- The sgmllib and htmllib modules have been deprecated for removal + in Python 3.0. + +- Issue #3011: locale module alias table was updated to the latest + version from the X.org locale.alias file. + +- Issue #1797 (partial fix): ctypes NULL function pointers have a + False boolean value now. + +- Issue #2985: Allow 64-bit integer responses (````) in XMLRPC + transfers. + +- Issue #2877: The UserString.MutableString class has been removed in + Python 3.0. + +- Do not close external file objects passed to tarfile.open(mode='w:bz2') + when the TarFile is closed. + +- Issue #2959: For consistency with other file-like objects, gzip's + GzipFile.close() can now be called multiple times without raising + an exception. + +- Issue #1390: Raise ValueError in toxml when an invalid comment would + otherwise be produced. + +- Issue #2914: TimedRotatingFileHandler now takes an optional keyword + argument "utc" to use UTC time rather than local time. + +- Issue #2929: TimedRotatingFileHandler was using the wrong path when + deleting old log files (filename only instead of full path). + +- Issue #1775025: You can now specify zipfile members to open(), + read() or extract() via a ZipInfo instance. This allows handling + duplicate filenames in zipfiles. + +- Issue #961805: Fix Text.edit_modified() in Tkinter. + +- Issue #1793: Function ctypes.util.find_msvcrt() added that returns + the name of the C runtime library that Python uses. + ctypes.util.find_library(name) now call this function when name is + 'm' or 'c'. + +- The statvfs module has been deprecated for removal in Python 3.0. + +- The sunaudiodev and SUNAUDIODEV modules have been deprecated for + removal in Python 3.0. + +- The WAIT module from IRIX has been deprecated for removal in Python + 3.0. + +- The torgb module from IRIX has been deprecated for removal in Python + 3.0. + +- The SV module from IRIX has been deprecated for removal in Python + 3.0. + +- The readcd module from IRIX has been deprecated for removal in + Python 3.0. + +- The panelparser module from IRIX has been deprecated for removal in + Python 3.0. + +- The panel module from IRIX has been deprecated for removal in Python + 3.0. + +- The jpeg module from IRIX has been deprecated for removal in Python + 3.0. + +- The IOCTL module from IRIX has been deprecated for removal in Python + 3.0. + +- The IN module from IRIX has been deprecated for removal in Python + 3.0. + +- The imgfile module from IRIX has been deprecated for removal in + Python 3.0. + +- The GLWS module from IRIX has been deprecated for removal in Python + 3.0. + +- The GET module from IRIX has been deprecated for removal in Python + 3.0. + +- The fm module from IRIX has been deprecated for removal in Python + 3.0. + +- The FL, flp, and fl modules from IRIX have been deprecated for + removal in Python 3.0. + +- The FILE module on IRIX has been deprecated for removal in Python + 3.0. + +- The ERRNO module on IRIX has been deprecated for removal in Python + 3.0. + +- The DEVICE, GL, gl, and cgen modules (which indirectly includes + cgensupport) have been deprecated for removal in Python 3.0. + +- The CL, CL_old, and cl modules for IRIX have been deprecated for + removal in Python 3.0. + +- The cdplayer module for IRIX has been deprecated for removal in + Python 3.0. + +- The cddb module for IRIX has been deprecated for removal in Python + 3.0. + +- The cd and CD modules for IRIX have been deprecated for removal in + Python 3.0. + +- The al and AL modules for IRIX have been deprecated for removal in + Python 3.0. + +- Issue #1713041: fix pprint's handling of maximum depth. + +- The timing module has been deprecated for removal in Python 3.0. + +- The sv module has been deprecated for removal in Python 3.0. + +- The multifile module has been deprecated as per PEP 4. + +- The imageop module has been deprecated for removal in Python 3.0. + +- Issue #2250: Exceptions raised during evaluation of names in + rlcompleter's ``Completer.complete()`` method are now caught and + ignored. + +- Issue #2659: Added ``break_on_hyphens`` option to textwrap + TextWrapper class. + +- The mhlib module has been deprecated for removal in Python 3.0. + +- The linuxaudiodev module has been deprecated for removal in Python + 3.0. + +- The ihooks module has been deprecated for removal in Python 3.0. + +- The fpformat module has been deprecated for removal in Python 3.0. + +- The dl module has been deprecated for removal in Python 3.0. + +- The Canvas module has been deprecated for removal in Python 3.0. + +- The compiler package has been deprecated for removal in Python 3.0. + +- The Bastion and rexec modules have been deprecated for removal in + Python 3.0. + +- The bsddb185 module has been deprecated for removal in Python 3.0. + +- The pure module has been deprecated for removal in Python 3.0. + +- Issue #2487: change the semantics of math.ldexp(x, n) when n is too + large to fit in a C long. ldexp(x, n) now returns a zero (with + suitable sign) if n is large and negative; previously, it raised + OverflowError. + +- The toaiff module has been deprecated for removal in Python 3.0. + +- The test.testall module has been deprecated for removal in Python + 3.0. + +- The new module has been deprecated for removal in Python 3.0. + +- The user module has been deprecated for removal in Python 3.0. + +- The stringold module has been deprecated for removal in Python 3.0. + +- The mutex module has been deprecated for removal in Python 3.0. + +- The imputil module has been deprecated for removal in Python 3.0. + +- test.test_support.catch_warning() gained a 'record' argument. + +- os.path.walk is deprecated in favor of os.walk. + +- pdb gained the "until" command. + +- The Mac Modules (including Carbon) have been deprecated for removal + in Python 3.0. + +- Library: on MacOS X you can now set ``ARCHFLAGS`` in the shell + environment to control the '-arch' flags that are used to build + an extension. This was added for compatibility with Apple's build + of Python. + +- The bundled OSX-specific copy of libbffi is now in sync with the version + shipped with PyObjC 2.0 and includes support for x86_64 and ppc64 platforms. + +- The threading module gained aliases for names that will be removed in the + 3.x series. + +Build +----- + +- The Windows installer now includes Tk 8.5, bzip2 1.0.5, and SQLite 3.5.9. + +- Patch #1722225: Support QNX 6. + +- ``Lib/lib-old`` is now added to sys.path. + +- On MacOS X it is now possible to install the framework in 64-bit + mode or even as a 4-way universal binary (that is, PPC, i386, + PPC64 and x86_64 support in one binary). + + This is controlled by the configure argument ``--with-universal-archs``: + + - ``--with-universal-archs=all``: install 4-way universal + + - ``--with-universal-archs=32-bit``: install 2-way universal, 32-bit (the default) + + - ``--with-universal-archs=64-bit``: install 2-way universal, 64-bit + + This option should be used in combination with ``--enable-universalsdk=``. + + NOTE: 64-bit and 4-way builds are only suppported on Mac OS X 10.5 (or later). + + +C API +----- + +- Add ``PyType_Modified()`` as a public API to clear the type cache. + +- The PyBytes functions have been renamed to PyByteArray. + +- The PyString functions have been renamed to PyBytes. A batch of + defines were added so that the linker still sees the original + PyString names. + + +What's New in Python 2.6 alpha 3? +================================= + +*Release date: 08-May-2008* + +Core and builtins +----------------- + +- Issue #2719: backported the ``next()`` builtin from Python 3. + +- Issue #2681: The octal literal ``0o8`` was incorrecly acctepted. Now + it properly raises a SyntaxError. + +- Issue #2617: Reserved -J and -X arguments for Jython, IronPython and + other implementations of Python. + +- Implemented PEP 370: Per user site-packages directory. + +Extension Modules +----------------- + +- Issue #2670: Fix a failure in urllib2.build_opener(), when passed + two handlers that derive the same default base class. + +- Added kill, terminate and send_signal(sig) to subprocess.Popen. + +- Added phase(z) -> phi, polar(z) -> r, phi and rect(r, phi) -> z to + the cmath module. + +- Four new methods were added to the math and cmath modules: acosh, + asinh, atanh and log1p. + +- zlib.decompressobj().flush(value) no longer crashes the interpreter + when passed a value less than or equal to zero. + +- Issue #1631171: Re-implement the 'warnings' module in C (the + original Python code has been kept as backup). This will allow for + using the 'warning's machinery in such places as the parser where + use of pure Python code is not possible. Both the ``showarning()`` + and ``formatwarning()`` gain an optional 'line' argument which is + not called by default for backwards-compatibility reasons. Setting + ``warnings.showwarning()`` to an implementation that lacks support + for the ``line`` argument will raise a DeprecationWarning. + +Library +------- + +- The audiodev module has been deprecated for removal in Python 3.0. + +- Issue #2750: Add the 'json' package. Based on simplejson 1.9 and + contributed by Bob Ippolito. + +- Issue #1734346: Support Unicode file names for zipfiles. + +- Issue #2581: distutils: Vista UAC/elevation support for + bdist_wininst. + +- Issue #2635: Fix bug in 'fix_sentence_endings' textwrap.fill option, + where an extra space was added after a word containing (but not + ending in) '.', '!' or '?'. + +- Add from_buffer() and from_buffer_copy() class methods to ctypes + data types. + +- Issue #2682: ctypes callback functions no longer contain a cyclic + reference to themselves. + +- The getpass module has been improved on Unix. It now uses /dev/tty + by default and uses stderr instead of stdout. A GetPassWarning is + issued when input echo cannot be controlled. + +- Issue #2014: Allow XML-RPC datetime objects to have dates before + 1900-01-01. + +- Issue #2439: Added new function pkgutil.get_data(), which is a + convenience wrapper for the PEP 302 get_data() API. + +- Issue #2616: The ctypes.pointer() and ctypes.POINTER() functions are + now implemented in C for better performance. + +- Issue #2408: The ``_types`` module, which was used as in + implementation detail of the public ``types`` module, has been + removed and replaced by pure python code. + +- Issue #2513: distutils on Windows is now capable of cross-compiling + extension modules between 32 and 64 bit platforms. See the distutls + build documentation for more information. + +- Issue #815646: Individual file objects may now be used from multiple + threads at once without fear of crashing the Python interpreter. If + file.close() is called while an object is in use by another thread + an IOError exception will be raised and the file will not be closed. + +- The bundled libffi copy is now in sync with the recently released + libffi3.0.5 version, apart from some small changes to + Modules/_ctypes/libffi/configure.ac. + +- Issue #2385: distutils.core.run_script() makes __file__ available, + so the controlled environment will more closely mirror the typical + script environment. This supports setup.py scripts that refer to + data files. + +Tests +----- + +- Issue #2550: The approach used by client/server code for obtaining + ports to listen on in network-oriented tests has been refined in an + effort to facilitate running multiple instances of the entire + regression test suite in parallel without issue. + test_support.bind_port() has been fixed such that it will always + return a unique port -- which wasn't always the case with the + previous implementation, especially if socket options had been set + that affected address reuse (i.e. SO_REUSEADDR, SO_REUSEPORT). The + new implementation of bind_port() will actually raise an exception + if it is passed an AF_INET/SOCK_STREAM socket with either the + SO_REUSEADDR or SO_REUSEPORT socket option set. Furthermore, if + available, bind_port() will set the SO_EXCLUSIVEADDRUSE option on + the socket it's been passed. This currently only applies to + Windows. This option prevents any other sockets from binding to the + host/port we've bound to, thus removing the possibility of the + 'non-deterministic' behaviour, as Microsoft puts it, that occurs + when a second SOCK_STREAM socket binds and accepts to a host/port + that's already been bound by another socket. The optional preferred + port parameter to bind_port() has been removed. Under no + circumstances should tests be hard coding ports! + + test_support.find_unused_port() has also been introduced, which will + pass a temporary socket object to bind_port() in order to obtain an + unused port. The temporary socket object is then closed and + deleted, and the port is returned. This method should only be used + for obtaining an unused port in order to pass to an external program + (i.e. the -accept [port] argument to openssl's s_server mode) or as + a parameter to a server-oriented class that doesn't give you direct + access to the underlying socket used. + + Finally, test_support.HOST has been introduced, which should be used + for the host argument of any relevant socket calls (i.e. bind and + connect). + + The following tests were updated to following the new conventions: + test_socket, test_smtplib, test_asyncore, test_ssl, test_httplib, + test_poplib, test_ftplib, test_telnetlib, test_socketserver, + test_asynchat and test_socket_ssl. + + It is now possible for multiple instances of the regression test + suite to run in parallel without issue. + +Build +----- + +- Issue #1496032: On alpha, use -mieee when gcc is the compiler. + +- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when + gcc is used as compiler. + +- Issue #2573: On MacOS X it is now possible to install the framework + with a different name using --with-framework-name=NAME. + +C API +----- + +- Added implementation of copysign, acosh, asinh, atanh and log1p to + the new files Include/pymath.h and Python/pymath.h for platforms + which provide the functions through their libm. The files also + contains several helpers and constants for math. + +- Added a new convenience macro, PyErr_WarnPy3k, for issuing Py3k warnings. + + +What's New in Python 2.6 alpha 2? +================================= + +*Release date: 02-Apr-2008* + +Core and builtins +----------------- + +- Issue #1733757: The interpreter would hang on shutdown if the + tracing function set by sys.settrace is still active and happens to + call threading.currentThread(). + +- Patch #1442: properly report exceptions when the PYTHONSTARTUP file + cannot be executed. + +- The compilation of a class nested in another class used to leak one + reference on the outer class name. + +- Patch #1810: compile() can now compile _ast trees as returned by + ``compile(..., PyCF_ONLY_AST)``. + +- Patch #2426: Added sqlite3.Connection.iterdump method to allow easy + dumping of databases. Contributed by Paul Kippes at PyCon 2008. + +- Patch #2477: Added from __future__ import unicode_literals. + +- Added backport of bytearray type. + +- Issue #2355: add Py3k warning for buffer(). + +- Issue #1477: With narrow Unicode builds, the unicode escape sequence + \Uxxxxxxxx did not accept values outside the Basic Multilingual + Plane. This affected raw unicode literals and the + 'raw-unicode-escape' codec. Now UTF-16 surrogates are generated in + this case, like normal unicode literals and the 'unicode-escape' + codec. + +- Issue #2348: add Py3k warning for file.softspace. + +- Issue #2346/#2347: add Py3k warnings for __methods__ and + __members__. + +- Issue #2358: Add a Py3k warning on sys.exc_clear() usage. + +- Issue #2400: Allow relative imports to "import *". + +- Issue #1745: Backport print function with ``from __future__ import + print_function``. + +- Issue #2332: add new attribute names for instance method objects. + The two changes are: im_self -> __self__ and im_func -> __func__ + +- Issue #2379: Raise a Py3K warning for __getitem__ or __getslice__ on + exception instances. + +- Issue #2371: Add a Py3k warning when catching an exception that + doesn't derive from BaseException. + +- Issue #2341: Add a Py3k warning when raising an exception that + doesn't derive from BaseException. + +- Issue #2321: use pymalloc for unicode object string data to reduce + memory usage in some circumstances. + +- PEP 3127: octal literals now start with "0o". Old-style octal + literals are still valid. There are binary literals with a prefix of + "0b". This also affects int(x, 0). + +- Issue #2359: Adding deprecation warnings for array.{read,write}. + +- Issue #1779871: GNU gcc can now build Python on OS X because the + flags -Wno-long-double, -no-cpp-precomp, and -mno-fused-madd are no + longer passed. + +- Add a warning when asserting a non-empty tuple which is always true. + +- Issue #2179: speed up with statement execution by storing the exit + method on the stack instead of in a temporary variable (patch by + Jeffrey Yaskin) + +- Issue #2238: Some syntax errors in *args and **kwargs expressions + could give bogus error messages. + +- Issue #2143: Fix embedded readline() hang on SSL socket EOF. + +Extension Modules +----------------- + +- Patch #2240: Implement signal.setitimer and signal.getitimer. + +Library +------- + +- Issue #2315: logging.handlers: TimedRotatingFileHandler now accounts + for daylight savings time in calculating the next rollover. + +- Issue #2316: logging.handlers: TimedRotatingFileHandler now + calculates rollovers correctly even when nothing is logged for a + while. + +- Issue #2317: logging.handlers: TimedRotatingFileHandler now uses + improved logic for removing old files. + +- Issue #2495: tokenize.untokenize now inserts a space between two + consecutive string literals; previously, ["" ""] was rendered as + [""""], which is incorrect python code. + +- Issue #2248: return the result of the QUIT command. from + SMTP.quit(). + +- Backport of Python 3.0's io module. + +- Issue #2482: Make sure that the coefficient of a Decimal is always + stored as a str instance, not as a unicode instance. This ensures + that str(Decimal) is always an instance of str. + +- Issue #2478: fix failure of decimal.Decimal(0).sqrt() + +- Issue #2432: give DictReader the dialect and line_num attributes + advertised in the docs. + +- Issue #2460: Make Ellipsis object copyable. + +- Issue #1681432: Add triangular distribution to the random module + +- Issue #2136: urllib2's auth handler now allows single-quoted realms + in the WWW-Authenticate header. + +- Issue #2434: Enhanced platform.win32_ver() to also work on Python + installation which do not have the win32all package installed. + +- Added support to platform.uname() to also report the machine and + processor information on Windows XP and later. As a result, + platform.machine() and platform.processor() will report this + information as well. + +- The library implementing the 2to3 conversion, lib2to3, was added to + the standard distribution. + +- Issue #1747858: Fix chown to work with large uid's and gid's on + 64-bit platforms. + +- Issue #1202: zlib.crc32 and zlib.adler32 no longer return different + values on 32-bit vs. 64-bit python interpreters. Both were correct, + but they now both return a signed integer object for consistency. + +- Issue #1158: add %f format (fractions of a second represented as + microseconds) to datetime objects. Understood by both strptime and + strftime. + +- Issue #705836: struct.pack(">f", x) now raises OverflowError on all + platforms when x is too large to fit into an IEEE 754 float; + previously it only raised OverflowError on non IEEE 754 platforms. + +- Issues #2166, #1741 and #1531505: now distutils deals with HOME + correctly under win32 + +- Patch #1858: distutils: added multiple server support in .pypirc + +- Issue #1106316: pdb.post_mortem()'s parameter, "traceback", is now + optional: it defaults to the traceback of the exception that is + currently being handled (is mandatory to be in the middle of an + exception, otherwise it raises ValueError). + +- Issue #1193577: A .shutdown() method has been added to SocketServers + which terminates the .serve_forever() loop. + +- Issue #2220: handle rlcompleter attribute match failure more + gracefully. + +- Issue #2225: py_compile, when executed as a script, now returns a + non- zero status code if not all files could be compiled + successfully. + +- Bug #1725737: In distutils' sdist, exclude RCS, CVS etc. also in the + root directory, and also exclude .hg, .git, .bzr, and _darcs. + +- Issue #1872: The struct module typecode for _Bool has been changed + from 't' to '?'. + +- The bundled libffi copy is now in sync with the recently released + libffi3.0.4 version, apart from some small changes to + Modules/_ctypes/libffi/configure.ac. On OS X, preconfigured libffi + files are used. On all linux systems the --with-system-ffi + configure option defaults to "yes". + +- Issue #1577: shutil.move() now calls os.rename() if the destination + is a directory instead of copying-then-remove-source. + +Tests +----- + +- test_nis no longer fails when test.test_support.verbose is true and + NIS is not set up on the testing machine. + +- Output comparison tests are no longer supported. + +- Rewrite test_errno to use unittest and no longer be a no-op. + +- GHOP 234: Convert test_extcall to doctest. + +- GHOP 290: Convert test_dbm and test_dummy_threading to unittest. + +- GHOP 293: Convert test_strftime, test_getargs, and test_pep247 to + unittest. + +- Issue #2055: Convert test_fcntl to unittest. + +- Issue 1960: Convert test_gdbm to unittest. + +- GHOP 294: Convert test_contains, test_crypt, and test_select to + unittest. + +- GHOP 238: Convert test_tokenize to use doctest. + +- GHOP 237: Rewrite test_thread using unittest. + +- Patch #2232: os.tmpfile might fail on Windows if the user has no + permission to create files in the root directory. + +Build +----- + +- A new script 2to3 is now installed, to run the 2.x to 3.x converter. + +- Python/memmove.c and Python/strerror.c have been removed; both + functions are in the C89 standard library. + +- Patch #2284: Add -x64 option to rt.bat. + +C API +----- + +- Patch #2477: Added PyParser_ParseFileFlagsEx() and + PyParser_ParseStringFlagsFilenameEx(). + + +What's New in Python 2.6 alpha 1? +================================= + +*Release date: 29-Feb-2008* + +Core and builtins +----------------- + +- Issue #2051: pyc and pyo files are no longer created with permission + 644. The mode is now inherited from the py file. + +- Issue #2067: file.__exit__() now calls subclasses' close() method. + +- Patch #1759: Backport of PEP 3129 class decorators. + +- Issue #1881: An internal parser limit has been increased. Also see + issue 215555 for a discussion. + +- Added the future_builtins module, which contains hex() and oct(). + These are the PEP 3127 version of these functions, designed to be + compatible with the hex() and oct() builtins from Python 3.0. They + differ slightly in their output formats from the existing, unchanged + Python 2.6 builtins. The expected usage of the future_builtins + module is: + from future_builtins import hex, oct + +- Issue #1600: Modifed PyOS_ascii_formatd to use at most 2 digit + exponents for exponents with absolute value < 100. Follows C99 + standard. This is a change on Windows, which would use 3 digits. + Also, added 'n' to the formats that PyOS_ascii_formatd understands, + so that any alterations it does to the resulting string will be + available in stringlib/formatter.h (for float.__format__). + +- Implemented PEP 3101, Advanced String Formatting. This adds a new + builtin format(); a format() method for str and unicode; a + __format__() method to object, str, unicode, int, long, float, and + datetime; the class string.Formatter; and the C API + PyObject_Format(). + +- Fixed several potential crashes, all caused by specially crafted + __del__ methods exploiting objects in temporarily inconsistent + state. + +- Issue #2115: Important speedup in setting __slot__ attributes. Also + prevent a possible crash: an Abstract Base Class would try to access + a slot on a registered virtual subclass. + +- Fixed repr() and str() of complex numbers with infinity or nan as + real or imaginary part. + +- Clear all free lists during a gc.collect() of the highest generation + in order to allow pymalloc to free more arenas. Python may give back + memory to the OS earlier. + +- Issue #2045: Fix an infinite recursion triggered when printing a + subclass of collections.defaultdict, if its default_factory is set + to a bound method. + +- Fixed a minor memory leak in dictobject.c. The content of the free + list was not freed on interpreter shutdown. + +- Limit free list of method and builtin function objects to 256 + entries each. + +- Patch #1953: Added ``sys._compact_freelists()`` and the C API + functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` + to compact the internal free lists of pre-allocted ints and floats. + +- Issue #1983: Fixed return type of fork(), fork1() and forkpty() + calls. Python expected the return type int but the fork familie + returns pi_t. + +- Issue #1678380: Fix a bug that identifies 0j and -0j when they + appear in the same code unit. + +- Issue #2025: Add tuple.count() and tuple.index() methods to comply + with the collections.Sequence API. + +- Patch #1970 by Antoine Pitrou: Speedup unicode whitespace and + linebreak detection + +- Added ``PyType_ClearCache()`` and ``sys._clear_type_cache`` to clear + the internal lookup cache for ref leak tests. + +- Patch #1473257: generator objects gain a gi_code attribute. This is + the same object as the func_code attribute of the function that + produced the generator. + +- Issue #1920: "while 0" statements were completely removed by the + compiler, even in the presence of an "else" clause, which is + supposed to be run when the condition is false. Now the compiler + correctly emits bytecode for the "else" suite. + +- A few crashers fixed: weakref_in_del.py (issue #1377858); + loosing_dict_ref.py (issue #1303614, test67.py); + borrowed_ref_[34].py (not in tracker). + +- Issue #1069410: The "can't load dll" message box on Windows is + suppressed while an extension is loaded by calling SetErrorMode in + dynload_win.c. The error is still reported properly. + +- Issue #1915: Python compiles with --enable-unicode=no again. However + several extension methods and modules do not work without unicode + support. + +- Issue #1882: when compiling code from a string, encoding cookies in the + second line of code were not always recognized correctly. + +- Issue #1679: "0x" was taken as a valid integer literal. + +- Issue #1865: ``bytes`` as an alias for ``str`` and b"" as an alias "" were + added. + +- 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. + +- Objects/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 #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 #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. + +- Patch #1673759: add a missing overflow check when formatting floats + with %G. + +- Prevent expandtabs() on string and unicode objects from causing a + segfault when a large width is passed on 32-bit platforms. + +- Issue #1733488: Fix compilation of bufferobject.c on AIX. + +- Issue #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. + +- Issue #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. + +- 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. + +- 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. + +- 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. + +- Issue #1703448: A joined thread could show up in the + threading.enumerate() list after the join() for a brief period until + it actually exited. + + +Library +------- + +- Patch #2274: Add heapq.heappushpop(). + +- Add inspect.isabstract(object) to fix bug #2223 + +- Add a __format__ method to Decimal, to support PEP 3101. + +- Add a timing parameter when using trace.Trace to print out + timestamps. + +- Issue #1627: httplib now ignores negative Content-Length headers. + +- Issue #900744: If an invalid chunked-encoding header is sent by a + server, httplib will now raise IncompleteRead and close the + connection instead of raising ValueError. + +- Issue #1492: The content type of BaseHTTPServer error messages can + now be overridden. + +- Issue #1781: ConfigParser now does not let you add the "default" section + (ignore-case) + +- Removed uses of dict.has_key() from distutils, and uses of + callable() from copy_reg.py, so the interpreter now starts up + without warnings when '-3' is given. More work like this needs to + be done in the rest of the stdlib. + +- Issue #1916: added isgenerator() and isgeneratorfunction() to + inspect.py. + +- Issue #1224: Fixed bad url parsing when path begins with double + slash. + +- ctypes instances that are not or do not contain pointers can now be + pickled. + +- Patch #1966: Break infinite loop in httplib when the servers + implements the chunked encoding incorrectly. + +- Rename rational.py to fractions.py and the rational.Rational class + to fractions.Fraction, to avoid the name clash with the abstract + base class numbers.Rational. See discussion in issue #1682. + +- The pickletools module now provides an optimize() function that + eliminates unused PUT opcodes from a pickle string. + +- Patch #2021: Allow tempfile.NamedTemporaryFile and + SpooledTemporaryFile to be used in with statements by correctly + supporting the context management protocol. + +- Patch #1979: Add rich comparisons to Decimal, and make Decimal + comparisons involving a NaN follow the IEEE 754 standard. + +- Issue #2004: tarfile.py: Use mode 0700 for temporary directories and + default permissions for missing directories. + +- Issue #175006: The debugger used to skip the condition of a "while" + statement after the first iteration. Now it correctly steps on the + expression, and breakpoints on the "while" statement are honored on + each loop. + +- Issue #1765140: add an optional delay argument to FileHandler and + its subclasses. Defaults to false (existing behaviour), but if true, + defers opening the file until the first call to emit(). + +- The pprint module now supports sets and frozensets. + +- Issue #1221598: add optional callbacks to ftplib.FTP's storbinary() + and storlines() methods. (Contributed by Phil Schwartz) + +- Issue #1715: include sub-extension modules in pydoc's text output. + +- Issue #1836: fix an off-by-one bug in TimedRotatingHandler's + rollover time calculation. + +- Issue #1021: fix a bug to allow basicConfig to accept NOTSET as a + level. + +- Issue #932563: add LoggerAdapter convenience class to make it easier + to add contextual information in logging output. + +- Issue #1760556: fix a bug to avoid FileHandler throwing an exception + in flush(). + +- Bug #1530959: distutils' build command now uses different build + directory when building extension modules against versions of Python + compiled with ``--with-pydebug``. + +- Issue #1555501: move plistlib from plat-mac directory to general + library. + +- Issue #1269: fix a bug in pstats.add_callers() and add a unit test + file for pstats. + +- Issue #1669: don't allow shutil.rmtree() to be called on a symlink + to a directory. + +- Issue #1664522: in urllib, don't read non-existing directories in + ftp mode, returning a 0-byte file -- raise an IOError instead. + +- Issue #856047: respect the ``no_proxy`` environment variable when + using the ``http_proxy`` etc. environment variables in urllib. + +- Issue #1178141: add a getcode() method to the addinfourls that + urllib.open() returns so that you can retrieve the HTTP status code. + +- Issue #1003: Fix zipfile decryption check, it would fail zip files + with extended local headers. + +- Issue #1189216: Fix the zipfile module to work on archives with + headers past the 2**31 byte boundary. + +- Issue #1336: fix a race condition in subprocess.Popen if the garbage + collector kicked in at the wrong time that would cause the process + to hang when the child wrote to stderr. + +- Issue #1146: fix how textwrap breaks a long word that would start in + the last column of a line. + +- Issue #1693149: trace.py --ignore-module - accept multiple + comma-separated modules to be given. + +- Issue #1822: MIMEMultipart.is_multipart() behaves correctly for a + just-created (and empty) instance. Thanks Jonathan Share. + +- Issue #1861: Added an attribute to the sched module which returns an + ordered list of upcoming events (displayed as named tuples). + +- Issue #1837: The queue module now also supports a LIFO queue and a + priority queue. + +- Patch #1048820: Add insert-mode editing to curses.textpad.Textbox + (patch by Stefan Wehr). Also, fix an off-by-one bug in + Textbox.gather(). + +- 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:q re.match is interruptible now, which is particularly + good for long regular expression matches. + +- Patch #1137: allow setting buffer_size attribute on pyexpat 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 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. + +- Added itertools.product() which forms the Cartesian product of the + input iterables. + +- Added itertools.combinations() and itertools.permutations(). + +- 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. + +- Bugs #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. + +- Issue #1385: 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. + +- Patch #742598: Add .timeout attribute to SocketServer that calls + .handle_timeout() when no requests are received. + +- 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 elide 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). + +- Issue #829951: 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. + +- Issue #1339: 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. + +- Patch #1089358: Add signal.siginterrupt, a wrapper around + siginterrupt(3). + +Extension Modules +----------------- + +- Patch #1657: added select.epoll and select.kqueue. + +- Patch #1506171: added operator.methodcaller(). + +- Patch #1826: operator.attrgetter() now supports dotted attribute paths. + +- Patch #1957: syslogmodule: Release GIL when calling syslog(3). + +- Bug #2112: mmap.error is now a subclass of EnvironmentError and not + a direct EnvironmentError. + +- Bug #2111: mmap segfaults when trying to write a block opened with + PROT_READ. + +- Bug #2063: correct order of utime and stime in os.times() result on + Windows. + +- Patch #1736: Fix file name handling of _msi.FCICreate. + +- Updated ``big5hkscs`` codec to the HKSCS revision of 2004. + +- Issue #1940: make it possible to use curses.filter() before + curses.initscr() as the documentation says. + +- Backport of _fileio module from Python 3.0. + +- Patch #1087741: mmap.mmap is now a class, not a factory function. It + is also subclassable now. + +- Patch #1648: added ``sys.getprofile()`` and ``sys.gettrace()``. + +- Patch #1663329: added ``os.closerange()`` function to quickly close + a range of file descriptors without considering errors. + +- Patch #976880: ``mmap`` objects now have an ``rfind`` method that + works as expected. ``mmap.find`` also takes an optional ``end`` + parameter. + +- _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. + +- itertools.chain() now has an alternate constructor, + chain.from_iterable(). + +- 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. + +- Patch #1019808: fix bug that causes an incorrect error to be + returned when a socket timeout is set and a connection attempt + fails. + +- 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, + 4.6.x and 4.7.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 + +- bsddb module: Fix memory leak when using database cursors on + databases without a DBEnv. + +- The sqlite3 module was updated to pysqlite 2.4.1. + +Tests +----- + +- Refactor test_logging to use unittest. + +- Refactor test_profile and test_cprofile to use the same code to + profile. + +- 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/scripts/reindent.py now creates the backup file using + shutil.copy to preserve user/group and permissions. Added also a + --nobackup option to not create the backup if the user is concerned + regarding this. Check issue 1050828 for more details. + +- Tools/scripts/win_add2path.py was added. The simple script modifes + the PATH environment var of the HKCU tree and adds the python bin + and script directory. + +- 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 +------------- + +- RFE #1765140: Updated documentation on FileHandler and subclasses to + include new optional delay argument. + +- Bug #932563: Added section on getting contextual information into + logging output, and added documentation for the new LoggerAdapter + class. + +- Bug #1295: Added information about caching of formatted exception + information in the LogRecord by Formatter.format(). + +- 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 +----- + +- Have the search path for building extensions follow the declared + order in $CPPFLAGS and $LDFLAGS when adding directories from those + environment variables. + +- Bug #1983: Added a check to pyport to verify that sizeof(pid_t) is + smaller or equal sizeof(long). + +- Bug #1234: Fixed semaphore errors on AIX 5.2 + +- 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 +----- + +- Unified naming convention for free lists and their limits. All free + lists in Object/ are named ``free_list``, the counter ``numfree`` + and the upper limit is a macro ``PyName_MAXFREELIST`` inside an + #ifndef block. + +- ``PySet_Add()`` can now modify a newly created frozenset. Similarly + to ``PyTuple_SetItem``, it can be used to populate a brand new + frozenset; but it does not steal a reference to the added item. + +- Added ``PySet_Check()`` and ``PyFrozenSet_Check()`` to the set API. + +- Backport of PyUnicode_FromString(), _FromStringAndSize(), _Format + and _FormatV from Python 3.0. Made PyLong_AsSsize_t and + PyLong_FromSsize_t public functions. + +- Patch #1720595: add T_BOOL to the range of structmember types. + +- 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 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, + Py_TYPE and Py_REFCNT. + +- PEP 3123: Provide forward compatibility with Python 3.0, while + keeping backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, + and PyVarObject_HEAD_INIT. + +- Py_ssize_t fields work in structmember when HAVE_LONG_LONG is not + defined. + +- Patch #1733960: Allow T_LONGLONG to accept ints. + +- T_PYSSIZET can now be used in PyMemberDef lists for Py_ssize_t members. + +- Added a new API function ``PyImport_ImportModuleNoBlock``. + +- Bug #1637022: Prefix AST symbols with _Py_. + +- Fix some leftovers from the conversion from int to Py_ssize_t + (relevant to strings and sequences of more than 2**31 items). + +- Make _PyGILState_NoteThreadState() static, it was not used anywhere + outside of pystate.c and should not be necessary. + +- ``PyImport_Import`` and ``PyImport_ImportModule`` now always do + absolute imports. In earlier versions they might have used relative + imports under some conditions. + +- 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 +------- + +- Patch #1706: Drop support for Win9x, WinME and NT4. Python now + requires Windows 2000 or greater. The _WINVER and NTDDI_VERSION + macros are set to Win2k for x86/32bit builds and WinXP for AMD64 + builds. + +- 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. + +---- + +**(For information about older versions, consult the HISTORY file.)**