[Python-Dev] PEP 575 (Unifying function/method classes) update (original) (raw)

INADA Naoki songofacandy at gmail.com
Sun Jun 17 21:34:16 EDT 2018

Hi Jeroen.

It's interesting, but I think we need reference implementation to compare it's benefit with it's complexity.

Victor had tried to add tp_fastcall slot, but he suspended his effort because it's benefit is not enough for it's complexity. https://bugs.python.org/issue29259

I think if your idea can reduce complexity of current special cases without any performance loss, it's nice.

On the other hand, if your idea increase complexity, I doubt it's benefit.

Increasing performance of all Python defined methods + most of builtin methods affects total application performance because it covers most calls. But calling callable object other than them are relatively rare. It may not affect real world performance of most applications.

So, until I can compare it's complexity and benefits, I can say only "it's interesting."

Regards,

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