Freeradius Python version

[Dan M]

We have been using python with freeradius for a little over a year with much
success.
Now we would like to upgrade Python from 2.7 to 3.x.

Perhaps this only reflects my ignorance, but how can I configure freeradius
to use python3?
Currently, the python executable is a symlink /usr/bin/python -> python2
I don't expect this symlink to change based on the way our enterprise does
things.
Or does it actually even use that?

Maybe it is only configured via python_path  in mods-available/python.

Please advise.

Dan Mullen