[Python-Dev] Experiment an opt-in new C API for Python? (leave current API unchanged)

[Victor Stinner]

Le mar. 20 nov. 2018 à 23:08, Stefan Krah <stefan at bytereef.org> a écrit :
> Intuitively, it should probably not be part of a limited API, but I never
> quite understood the purpose of this API, because I regularly need any
> function that I can get my hands on.
> (...)
> Reading typed strings directly into an array with minimal overhead.

IMHO performance and hiding implementation details are exclusive. You
should either use the C API with impl. details for best performances,
or use a "limited" C API for best compatibility.

Since I would like to not touch the C API with impl. details, you can
imagine to have two compilation modes: one for best performances on
CPython, one for best compatibility (ex: compatible with PyPy). I'm
not sure how the "compilation mode" will be selected.

Victor