[issue27830] Add _PyObject_FastCallKeywords(): avoid the creation of a temporary dictionary for keyword arguments

[Roundup Robot]

Roundup Robot added the comment:

New changeset 18d2d128cd1e by Victor Stinner in branch 'default':
Add _PyObject_FastCallKeywords()
https://hg.python.org/cpython/rev/18d2d128cd1e

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27830>
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