[issue46323] Use _PyObject_Vectorcall in Modules/_ctypes/callbacks.c

[Dong-hee Na]

Dong-hee Na <donghee.na at python.org> added the comment:

@hydroflask

I am one of the big fans of applying vectorcall :)

> The benchmark you did is not reflective of my use-case. I have a codebase that I have completely converted into a C extension using mypyc.

Can you provide me a minimal benchmarkable script(if you need to include mypyc it's okay) to persuade other core dev?

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