problem running tox with site module

[vahtras]

The Python version that tox executes has a fundamentally different site module than the standard distrubution. Why is that? The resulting error I have had boils down to the following line

$ ./.tox/py36/bin/python3.6 -c 'import site; print(site.getuserbase())'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
AttributeError: module 'site' has no attribute 'getuserbase'

$ ./.tox/py36/bin/python3.6 --version
Python 3.6.8

to be compared with

$ /usr/bin/python3.6 -c 'import site; print(site.getuserbase())'
/home/olav/.local
$ /usr/bin/python3.6 --version
Python 3.6.8

[gaborbernat]

This is a side-effect of how virtualenv works. See https://www.youtube.com/watch?v=o1Vue9CWRxU for an in-depth detail. The next iteration of virtualenv will solve this (pypa/virtualenv#1377); in the meantime you can switch tox to use venv instead by using https://pypi.org/project/tox-venv/

YouTube

Bernat Gabor - status quo of virtual environments

"status quo of virtual environments [EuroPython 2019 - Talk - 2019-07-12 - MongoDB] [Basel, CH] By Bernat Gabor Python is easy to learn and use programming l...

PyPI

tox-venv

Use Python 3 venvs for Python 3 tox testenvs

[vahtras]

ok, thanks!