Paul A. Patience schreef op vr 22-04-2022 om 19:26 [+0000]:
> The setup.py file lists psutil and mkl in extras_require, meaning they
> are optional.

The manual has the following to say about optional dependencies:

   • If a Python package has optional dependencies (‘extras_require’),
     it is up to you to decide whether to add them or not, based on
     their usefulness/overhead ratio (*note ‘guix size’: Submitting
     Patches.).

I don't know if this changes anything here.

> mkl (https://pypi.org/project/mkl/) is released under the Intel
> Simplified Software License, which I suspect is ideologically
> incompatible with Guix (and therefore not already packaged for Guix), so
> I didn't include it.

Ok -- the pypi.org page even says ‘proprietary license’!

Greetings,
Maxime.