Re: [Python] pypy3 integration

[Lars-Dominik Braun <lars@6xq.net>]

Hi,

> pypy3 works somewhat well for me already in this regard:
indeed, you’re right.

This will probably break for some packages, because python provides
Python 3.8 whereas pypy3 provides Python 3.6.  (They’ve always lagged
behind and given that we’re going towards 3.10, well…) One example are
packages depending on importlib.resources, which only became available
with Python 3.7. Unfortunately this includes the widely-used pytest (or
rather: its dependency python-pluggy).

Also Python’s C ABI is not stable[1] and thus extensions compiled for 3.8
can fail in unpredictable ways with 3.6. And looking at python-numpy,
it seems they won’t even load.

So, does this justify creating pypy3-* packages?

Cheers,
Lars

[1] https://docs.python.org/3/c-api/stable.html