3.5.0a2

.. bpo: 23571 .. date: 8990 .. nonce: GTkAkq .. release date: 2015-03-09 .. section: Core and Builtins

PyObject_Call() and PyCFunction_Call() now raise a SystemError if a function returns a result and raises an exception. The SystemError is chained to the previous exception.

..

.. bpo: 22524 .. date: 8989 .. nonce: Ks6_2x .. section: Library

New os.scandir() function, part of the :pep:471: "os.scandir() function -- a better and faster directory iterator". Patch written by Ben Hoyt.

..

.. bpo: 23103 .. date: 8988 .. nonce: I3RLIV .. section: Library

Reduced the memory consumption of IPv4Address and IPv6Address.

..

.. bpo: 21793 .. date: 8987 .. nonce: GQtYMM .. section: Library

BaseHTTPRequestHandler again logs response code as numeric, not as stringified enum. Patch by Demian Brecht.

..

.. bpo: 23476 .. date: 8986 .. nonce: 82QV9I .. section: Library

In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST flag on certificate stores when it is available.

..

.. bpo: 23576 .. date: 8985 .. nonce: 98F-PP .. section: Library

Avoid stalling in SSL reads when EOF has been reached in the SSL layer but the underlying connection hasn't been closed.

..

.. bpo: 23504 .. date: 8984 .. nonce: o31h5I .. section: Library

Added an all to the types module.

..

.. bpo: 23563 .. date: 8983 .. nonce: iQB-ba .. section: Library

Optimized utility functions in urllib.parse.

..

.. bpo: 7830 .. date: 8982 .. nonce: irvPdC .. section: Library

Flatten nested functools.partial.

..

.. bpo: 20204 .. date: 8981 .. nonce: DorA4b .. section: Library

Added the module attribute to _tkinter classes.

..

.. bpo: 19980 .. date: 8980 .. nonce: whwzL_ .. section: Library

Improved help() for non-recognized strings. help('') now shows the help on str. help('help') now shows the help on help(). Original patch by Mark Lawrence.

..

.. bpo: 23521 .. date: 8979 .. nonce: HvwFfd .. section: Library

Corrected pure python implementation of timedelta division. Eliminated OverflowError from timedelta * float for some floats; Corrected rounding in timedelta true division.

..

.. bpo: 21619 .. date: 8978 .. nonce: uL0SZh .. section: Library

Popen objects no longer leave a zombie after exit in the with statement if the pipe was broken. Patch by Martin Panter.

..

.. bpo: 22936 .. date: 8977 .. nonce: JrhGYd .. section: Library

Make it possible to show local variables in tracebacks for both the traceback module and unittest.

..

.. bpo: 15955 .. date: 8976 .. nonce: _8nYPy .. section: Library

Add an option to limit the output size in bz2.decompress(). Patch by Nikolaus Rath.

..

.. bpo: 6639 .. date: 8975 .. nonce: rmjUmG .. section: Library

Module-level turtle functions no longer raise TclError after closing the window.

..

.. bpo: 814253 .. date: 8974 .. nonce: icZb-I .. section: Library

Group references and conditional group references now work in lookbehind assertions in regular expressions. (See also: bpo-9179)

..

.. bpo: 23215 .. date: 8973 .. nonce: VHVSVX .. section: Library

Multibyte codecs with custom error handlers that ignores errors consumed too much memory and raised SystemError or MemoryError. Original patch by Aleksi Torhamo.

..

.. bpo: 5700 .. date: 8972 .. nonce: iA5yzL .. section: Library

io.FileIO() called flush() after closing the file. flush() was not called in close() if closefd=False.

..

.. bpo: 23374 .. date: 8971 .. nonce: 8A9LuZ .. section: Library

Fixed pydoc failure with non-ASCII files when stdout encoding differs from file system encoding (e.g. on Mac OS).

..

.. bpo: 23481 .. date: 8970 .. nonce: ZWwliG .. section: Library

Remove RC4 from the SSL module's default cipher list.

..

.. bpo: 21548 .. date: 8969 .. nonce: CmO_Yh .. section: Library

Fix pydoc.synopsis() and pydoc.apropos() on modules with empty docstrings.

..

.. bpo: 22885 .. date: 8968 .. nonce: p8FnYk .. section: Library

Fixed arbitrary code execution vulnerability in the dbm.dumb module. Original patch by Claudiu Popa.

..

.. bpo: 23239 .. date: 8967 .. nonce: PGUq7T .. section: Library

ssl.match_hostname() now supports matching of IP addresses.

..

.. bpo: 23146 .. date: 8966 .. nonce: PW-O3u .. section: Library

Fix mishandling of absolute Windows paths with forward slashes in pathlib.

..

.. bpo: 23096 .. date: 8965 .. nonce: Ftrmf3 .. section: Library

Pickle representation of floats with protocol 0 now is the same for both Python and C implementations.

..

.. bpo: 19105 .. date: 8964 .. nonce: ZK07Ff .. section: Library

pprint now more efficiently uses free space at the right.

..

.. bpo: 14910 .. date: 8963 .. nonce: zueIhP .. section: Library

Add allow_abbrev parameter to argparse.ArgumentParser. Patch by Jonathan Paugh, Steven Bethard, paul j3 and Daniel Eriksson.

..

.. bpo: 21717 .. date: 8962 .. nonce: Knut81 .. section: Library

tarfile.open() now supports 'x' (exclusive creation) mode.

..

.. bpo: 23344 .. date: 8961 .. nonce: ieu8C1 .. section: Library

marshal.dumps() is now 20-25% faster on average.

..

.. bpo: 20416 .. date: 8960 .. nonce: cwEgkL .. section: Library

marshal.dumps() with protocols 3 and 4 is now 40-50% faster on average.

..

.. bpo: 23421 .. date: 8959 .. nonce: eckzoV .. section: Library

Fixed compression in tarfile CLI. Patch by wdv4758h.

..

.. bpo: 23367 .. date: 8958 .. nonce: kHnFiz .. section: Library

Fix possible overflows in the unicodedata module.

..

.. bpo: 23361 .. date: 8957 .. nonce: I_w0-z .. section: Library

Fix possible overflow in Windows subprocess creation code.

..

.. bpo: 0 .. date: 8956 .. nonce: sfmjTs .. section: Library

logging.handlers.QueueListener now takes a respect_handler_level keyword argument which, if set to True, will pass messages to handlers taking handler levels into account.

..

.. bpo: 19705 .. date: 8955 .. nonce: WLzTRV .. section: Library

turtledemo now has a visual sorting algorithm demo. Original patch from Jason Yeo.

..

.. bpo: 23801 .. date: 8954 .. nonce: jyJK3z .. section: Library

Fix issue where cgi.FieldStorage did not always ignore the entire preamble to a multipart body.

..

.. bpo: 23445 .. date: 8953 .. nonce: 7fmkYO .. section: Build

pydebug builds now use "gcc -Og" where possible, to make the resulting executable faster.

..

.. bpo: 23686 .. date: 8952 .. nonce: B7jDXY .. section: Build

Update OS X 10.5 installer build to use OpenSSL 1.0.2a.

..

.. bpo: 20204 .. date: 8951 .. nonce: M_jcNK .. section: C API

Deprecation warning is now raised for builtin types without the module attribute.

..

.. bpo: 23465 .. date: 8950 .. nonce: qBauCy .. section: Windows

Implement :pep:486 - Make the Python Launcher aware of virtual environments. Patch by Paul Moore.

..

.. bpo: 23437 .. date: 8949 .. nonce: ro9X8r .. section: Windows

Make user scripts directory versioned on Windows. Patch by Paul Moore.