Comment 5 for bug 1956472

You may also have the "xdg" package installed somewhere else. Both pyxdg & xdg provide the "xdg" namespace. There is a conflict here...
https://github.com/srstevenson/xdg/issues/35

Either remove it or use python venv
sudo pip3 uninstall xdg

or venv...
https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/