[Python-Dev] Making PyInterpreterState an opaque type

[Antoine Pitrou]

On Thu, 21 Feb 2019 13:45:05 +0100
Victor Stinner <vstinner at redhat.com> wrote:
> Le jeu. 21 févr. 2019 à 12:36, Antoine Pitrou <solipsis at pitrou.net> a écrit :
> >
> > On Thu, 21 Feb 2019 12:13:51 +0100
> > Victor Stinner <vstinner at redhat.com> wrote:  
> > >
> > > Premature optimization is the root of all evil. Most C extensions use
> > > premature optimization  
> >
> > How do you know it's premature?  Some extensions _are_ meant for speed.  
> 
> Sorry, I don't ask to stop optimizing C extension. I'm asking to stop
> to use low-level C API like PyTuple_GET_ITEM() if the modified code is
> the not the performance bottleneck.

As long as some people need that API, you'll have to maintain it
anyway, even if _less_ people use it.  Ingesting lists and tuples as
fast as possible is important for some use cases.  I have worked
personally on some of them (on e.g. Numba or PyArrow).

Regards

Antoine.