[Python-Dev] [PEP 576/580] Reserve one type slot for Cython (original) (raw)

Stefan Behnel stefan_ml at behnel.de
Mon Jul 30 14:03:54 EDT 2018

Jeroen Demeyer schrieb am 30.07.2018 um 16:40:

On 2018-07-30 15:35, INADA Naoki wrote:

As repeatedly said, PEP 580 is very complicated protocol when just implementing callable object. Can you be more concrete what you find complicated? Maybe I can improve the PEP to explain it more. Also, I'm open to suggestions to make it less complicated.

It is optimized for implementing custom method object, although almost only Cython want the custom method type. For the record, Numba also seems interested in the PEP: https://groups.google.com/a/continuum.io/d/msg/numba-users/2G6k2R92MIM/P-cFKW7xAgAJ

To add to that record, I (briefly) talked to Ronan Lamy about this at EuroPython and PyPy could also be interested in generalising the call protocol, especially with the future goal of extending it into a C level call protocol that their JIT could understand and build a cffi-like interface on.

Stefan

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