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

Le mer. 14 nov. 2018 ? 03:24, Nathaniel Smith <njs at> a ?crit :
> So I think what you're saying is that your goal is to get a
> new/better/shinier VM, and the plan to accomplish that is:
> 1. Define a new C API.
> 2. Migrate projects to the new C API.
> 3. Build a new VM that gets benefits from only supporting the new API.
> This sounds exactly backwards to me?
> If you define the new API before you build the VM, then no-one is
> going to migrate, because why should they bother? You'd be asking
> overworked third-party maintainers to do a bunch of work with no
> benefit, except that maybe someday later something good might happen.

Oh, I should stop to promote my "CPython fork" idea.

There is already an existing VM which is way faster than CPython but
its performances are limited by the current C API. The VM is called...

The bet is that migrating to a new C API would make your C extension faster.