bug#64309: Python dlopen()s musl libc

[Lars-Dominik Braun]

Hi Josselin,

> Woah, looks like a neat solution.  Do you think it would scale for all
> our Python packages without manual intervention?  If so, this would
> definitely be the way forward.

I hope so, but haven’t tried it yet.

> I mostly agree with you, but for this rather common case of having also
> a usercustomize it would be nice to circumvent it.  In general, I don't
> think we ever want a Guix-produced Python script to load the
> usercustomize, hence my suggestion.  The other case of PYTHONPATH is
> also annoying but can be tamed by modifying the env variable
> temporarily.

True, PYTHONPATH can be unset more easily than moving the user site
dir. I’ll have a look at #64573, which should work around this issue.

Cheers,
Lars