It's a tiny library that has not been updated in years, and it was
leading to a warning on startup:
DeprecationWarning: invalid escape sequence \W
return re.sub("\W+", "", string)
You can then do './scripts/python -m venv /path/to/venv' to create
a virtual env based on the bundled Python, which can be handy if
you don't happen to have the appropriate version of Python installed
separately.
