STINNER Victor added the comment:

INADA Naoki: "LOAD_METHOD support was based on tp_fastcall. (...) Other ideas 
to support LOAD_METHOD for C function are: * Add 
_PyMethodDescr_FastCallKeywords and call it in call_function."

It seems like a very small subset of tp_fastcall. If it provides a significant 
speedup, I really like the idea :-) I would be happy to see a "subset of 
tp_fastcall" merged. At least my whole tp_fastcall experiment wouldn't be 
worthless :-)

What would be the main change which would provide a speedup? Avoid the creation 
of a temporary tuple to pass positional arguments?

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue29263>
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