Re: [gentoo-user] Q: What is "python-exec2c"? Why would "python3" dispatched through it not see an installed copy of pyyaml?

[Arve Barsnes]

On Sun, 7 Mar 2021 at 17:00, Steven Lembark <lembark@×××××××.com> wrote:
> I believe there isn't any PYTHON_TARGET-ish setting on the system:
>
>      $ grep PYTHON_TARGET /etc/portage/make.conf /etc/portage/package.use/*
>     /etc/portage/make.conf:#PYTHON_TARGETS="python3_7 python2_7"
>     /etc/portage/package.use/dizzy:#*/* PYTHON_TARGETS: python3_6 python3_7
>     /etc/portage/package.use/dizzy~:#*/* PYTHON_TARGETS: python3_6 python3_7

What this is telling you is that you have no manual *override* of the
default python target setting. Check yours with something like:
$ emerge --info | grep PYTHON_TARGETS

The default at the moment is 3.8, and as eselect showed you, your
default python interpreter is 3.9. Did you set this explicitly? If you
have no particular need to move to 3.9 early, you could set 3.8 as the
default and probably be rid of your problems immediately.

> Q: Is this related to the fact that I'm not actually checking
>    python but a wrapper named "python-exec2c":
>
>     $ ls -l /usr/bin/python3
>     lrwxrwxrwx 1 root root 13 Oct 20 10:46 /usr/bin/python3 -> python-exec2c
>
>
>    i.e., could the wrapper be mis-diagnosing the correct python
>    version at install time?

It is finding python 3.9, which your system has set up to be the
wanted version. The link is the same on my system, but I have 3.8 as
my default interpreter, so I would not have these problems.

Regards,
Arve