What's New in Python 2.6.5?
===========================
*Release date: 2010-03-18*
What's New in Python 2.6.5 rc 2?
================================
*Release date: 2010-03-09*
Core and Builtins
-----------------
- Issue #8089: a OS X framework build with --with-universal-archs=3-way|intel
had no way to select a 32-bit executable.
- Issue #8084: fixes build issues on OSX 10.6 when targetting OSX 10.4.
Library
-------
- Reverting the changes made in r78432. Discussed in the tracker issue #7540.
- Issue #8107: Fixed test_distutils so it doesn't crash when the source
directory cannot be found.
Extension Modules
-----------------
- Issue #7670: sqlite3: Fixed crashes when operating on closed connections.
- Issue #8053: logic was inverted on which platforms to run a test on.
caused test_thread to fail on Windows.
What's New in Python 2.6.5 rc 1?
================================
*Release date: 2010-03-01*
Core and Builtins
-----------------
- Issue #7309: Fix unchecked attribute access when converting
UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
strings.
- Issue #7649: "u'%c' % char" now behaves like "u'%s' % char" and raises a
UnicodeDecodeError if 'char' is a byte string that can't be decoded using
the default encoding.
- Issue #5677: Explicitly forbid write operations on read-only file objects,
and read operations on write-only file objects. On Windows, the system C
library would return a bogus result; on Solaris, it was possible to crash
the interpreter. Patch by Stefan Krah.
- Issue #4978: Passing keyword arguments as unicode strings is now allowed.
- Issue #7819: Check sys.call_tracing() arguments types.
- Issue #7788: Fix an interpreter crash produced by deleting a list
slice with very large step value.
- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
could crash in many places because of the PyByteArray_AS_STRING() macro
returning NULL. The macro now returns a statically allocated empty
string instead.
- Issue #7604: Deleting an unset slotted attribute did not raise an
AttributeError.
- Issue #7413: Passing '\0' as the separator to datetime.datetime.isoformat()
used to drop the time part of the result.
- Issue #6108: unicode(exception) and str(exception) should return the same
message when only __str__ (and not __unicode__) is overridden in the
subclass.
- Issue #7491: Metaclass's __cmp__ method was ignored.
- Add Py3k warnings for parameter names in parenthesis.
- Issue #7362: Give a proper error message for def f((x)=3): pass.
- Issue #7085: Fix crash when importing some extensions in a thread
on MacOSX 10.6.
- Issue #7070: Fix round bug for large odd integer arguments.
- Issue #7078: Set struct.__doc__ from _struct.__doc__.
- Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which
fixes the problem of some exceptions being thrown at shutdown when the
interpreter is killed. Patch by Adam Olsen.
- Issue #7084: Fix a (very unlikely) crash when printing a list from one
thread, and mutating it from another one. Patch by Scott Dial.
- Issue #1747858: Fix lchown & fchown to work with large uid's and gid's on
64-bit platforms.
Library
-------
- Issue #7250: Fix info leak of os.environ across multi-run uses of
wsgiref.handlers.CGIHandler.
- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
- Issue #691291: codecs.open() should not convert end of lines on reading and
writing.
- Issue #7975: correct regression in dict methods supported by bsddb.dbshelve.
- Issue #7959: ctypes callback functions are now registered correctly
with the cycle garbage collector.
- Issue #6243: curses.getkey() can segfault when used with ungetch.
Fix by Trundle and Jerry Chen.
- Issue #7597: curses.use_env() can now be called before initscr().
Noted by Kan-Ru Chen.
- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
messages parsed by email.Parser.HeaderParser.
- Issue #3426: ``os.path.abspath`` now returns unicode when its arg is unicode.
- Issue #7835: shelve should no longer produce mysterious warnings during
interpreter shutdown.
- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
specified, rather than fall through to AF_PACKET (in the `socket` module).
Also, raise ValueError rather than TypeError when an unknown TIPC address
type is specified. Patch by Brian Curtin.
- Issue #6939: Fix file I/O objects in the `io` module to keep the original
file position when calling `truncate()`. It would previously change the
file position to the given argument, which goes against the tradition of
ftruncate() and other truncation APIs. Patch by Pascal Chambon.
- Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when
the release file is empty.
- Issue #7748: Since unicode values are supported for some metadata options
in Distutils, the DistributionMetadata get_* methods will now return an utf-8
encoded string for them. This ensure that the upload and register commands
send the right values to PyPI without any error.
- Issue #1670765: Prevent email.generator.Generator from re-wrapping
headers in multipart/signed MIME parts, which fixes one of the sources of
invalid modifications to such parts by Generator.
- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
1-byte argument. Patch by Victor Stinner.
- Issue #3299: Fix possible crash in te _sre module when given bad
argument values in debug mode. Patch by Victor Stinner.
- Issue #5827: Make sure that normpath preserves unicode. Initial patch
by Matt Giuca.
- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
ing the .c
file). Initial patch by Collin Winter.
- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
gcc when it has a fully qualified configuration prefix. Initial patch
by Arfrever.
- Issue #7071: byte-compilation in Distue.
- Issue #7092: Remove py3k warning when importing cPickle. 2to3 handles
renaming of `cPickle` to `pickle`. The warning was annoying since there's
no alternative to cPickle if you care about performance. Patch by Florent
Xicluna.
- Issue #745tch by
Victor Stinner.
- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
opening an empty or very small file.
- Issue #7552: Removed line feed in the base64 Authorization header in
the Distutils upload command to avoid an ers on long passwords. Initial patch by JP St. Pierre.
- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
Tatsuhiro Tsujikawa.
- Issue #7348: StringIO.StringIO.readline(-1) now acts as if it got no argument
like other file objects.
- Issue #5949: fixed IMAP4_SSL hang when the IMAP server response is
missing proper end-of-line termination.
- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
generated in Distutils. Patch by Stephen Emslie.
- Issue #4120: Drop reference to CRT from manifest when building extensions
with msvc9compiler.
- Issue #7410: deepcopy of itertools.count() erroneously reset the count.
- Issue #7403: logging: Fixed possible race condition in lock creation.
- Issue #7341: Close the internal file object in the TarFile constructor in
case of an error.
- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
- Issue #7318: multiprocessing now uses a timeout when it fails to establish
a connection with another process, rather than looping endlessly. The
default timeout is 20 seconds, which should be amply sufficient for
local connections.
- Issue #7282: Fix a memory leak when an RLock was used in a thread other
than those started through `threading.Thread` (for example, using
`thread.start_new_thread()`.
- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
which are part of a reference cycle.
- Issue #7249: Methods of io.BytesIO now allow `long` as well as `int`
arguments.
- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
- Issue #1008086: Fixed socket.inet_aton() to always return 4 bytes even on
LP64 platforms (most 64-bit Linux, bsd, unix systems).
- Issue #7246 & Issue #7208: getpass now properly flushes input before
reading from stdin so that existing input does not confuse it and
lead to incorrect entry or an IOError. It also properly flushes it
afterwards to avoid the terminal echoing the input afterwards on
OSes such as Solaris.
- Issue #7244: itertools.izip_longest() no longer ignores exceptions
raised during the formation of an output tuple.
- Issue #7233: Fix a number of two-argument Decimal methods to make
sure that they accept an int or long as the second argument. Also
fix buggy handling of large arguments (those with coefficient longer
than the current precision) in shift and rotate.
- Issue #7082: When falling back to the MIME 'name' parameter, the
correct place to look for it is the Content-Type header.
- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
larger than emax.
- Issue #7205: Fix a possible deadlock when using a BZ2File object from
several threads at once.
- Issue #7048: Force Decimal.logb to round its result when that result
is too large to fit in the current precision.
- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
- Issue #5037: Proxy the __unicode__ special method to __unicode__ instead of
__str__.
- Issue #7481: When a threading.Thread failed to start it would leave the
instance stuck in initial state and present in threading.enumerate().
- Issue #1068268: The subprocess module now handles EINTR in internal
os.waitpid and os.read system calls where appropriate.
Extension Modules
-----------------
- Issue #7808: Fix reference leaks in _bsddb and related tests.
- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
msvcr100.dll is not a platform assembly anymore.
- Issue #6877: Make it possible to link the readline extension to libedit
on OSX.
- Expat: Fix DoS via XML document with malformed UTF-8 sequences
(CVE_2009_3560).
- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a
thread could raise an incorrect RuntimeError about not holding the import
lock. The import lock is now reinitialized after fork.
- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
parameter on some platforms such as OS X.
Build
-----
- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
- Issue #7661: Allow ctypes to be built from a non-ASCII directory path.
Patch by Florent Xicluna.
- Issue #7589: Only build the nis module when the correct header files are
found.
- Switch to OpenSSL 0.9.8l on Windows.
- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
compiles correctly under gcc on x86-64. This fixes a reported
problem with the --with-tsc build on x86-64.
- Ensure that it possible to build extensions for the default
binary distribution on OSX 10.6 even when the user does not
have the 10.4u SDK installed.
- Issue #7541: when using ``python-config`` with a framework install the
compiler might use the wrong library.
Documentation
-------------
- Updating `Using Python` documentation to include description of CPython's
-J, -U and -X options.
- Update python manual page (options -B, -O0, -s, environment variables
PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
Tests
-----
- issue #7728: test_timeout was changed to use test_support.bind_port
instead of a hard coded port.
- Issue #7498: test_multiprocessing now uses test_support.find_unused_port
instead of a hardcoded port number in test_rapid_restart.
- Issue #7431: use TESTFN in test_linecache instead of trying to create a
file in the Lib/test directory, which might be read-only for the
user running the tests.
- Issue #7324: add a sanity check to regrtest argument parsing to
catch the case of an option with no handler.
- Issue #7295: Do not use a hardcoded file name in test_tarfile.
- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
primitives such as Lock, RLock, Condition, Event and Semaphore.
- Issue #7055: test___all__ now greedily detects all modules which have an
__all__ attribute, rather than using a hardcoded and incomplete list.
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