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Andrew M. Kuchling 2010-04-13 01:32:51 +00:00
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Doc/whatsnew/2.7.rst
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@ -854,6 +854,25 @@ changes, or look through the Subversion logs for all the details.
* The :mod:`imaplib` module now supports IPv6 addresses. * The :mod:`imaplib` module now supports IPv6 addresses.
(Contributed by Derek Morr; :issue:`1655`.) (Contributed by Derek Morr; :issue:`1655`.)
* New function: the :mod:`inspect` module's :func:`~inspect.getcallargs`
takes a callable and its positional and keyword arguments,
and figures out which of the callable's parameters will receive each argument,
returning a dictionary mapping argument names to their values. For example::
>>> from inspect import getcallargs
>>> def f(a, b=1, *pos, **named):
... pass
>>> getcallargs(f, 1, 2, 3)
{'a': 1, 'named': {}, 'b': 2, 'pos': (3,)}
>>> getcallargs(f, a=2, x=4)
{'a': 2, 'named': {'x': 4}, 'b': 1, 'pos': ()}
>>> getcallargs(f)
Traceback (most recent call last):
...
TypeError: f() takes at least 1 argument (0 given)
Contributed by George Sakkis; :issue:`3135`.
* Updated module: The :mod:`io` library has been upgraded to the version shipped with * Updated module: The :mod:`io` library has been upgraded to the version shipped with
Python 3.1. For 3.1, the I/O library was entirely rewritten in C Python 3.1. For 3.1, the I/O library was entirely rewritten in C
and is 2 to 20 times faster depending on the task being performed. The and is 2 to 20 times faster depending on the task being performed. The
@ -1478,9 +1497,10 @@ Changes to Python's build process and to the C API include:
building the :mod:`pyexpat` module to use the system Expat library. building the :mod:`pyexpat` module to use the system Expat library.
(Contributed by Arfrever Frehtes Taifersar Arahesis; :issue:`7609`.) (Contributed by Arfrever Frehtes Taifersar Arahesis; :issue:`7609`.)
* New configure option: Compiling Python with the * New configure option: compiling Python with the
:option:`--with-valgrind` option will now disable the pymalloc :option:`--with-valgrind` option will now disable the pymalloc
allocator, which is difficult for the Valgrind to analyze correctly. allocator, which is difficult for the Valgrind memory-error detector
to analyze correctly.
Valgrind will therefore be better at detecting memory leaks and Valgrind will therefore be better at detecting memory leaks and
overruns. (Contributed by James Henstridge; :issue:`2422`.) overruns. (Contributed by James Henstridge; :issue:`2422`.)