Using python -m sphinx instead of sphinx-build allows us to use --sitepackages if we want.
(tox --sitepackages is very useful if you just want to run some tests quickly without re-installing packages that you already have installed. See https://tox.readthedocs.io/en/latest/config.html#conf-sitepackages.)
Using python -m sphinx instead of sphinx-build allows us to use --sitepackages if we want. (
tox --sitepackagesis very useful if you just want to run some tests quickly without re-installing packages that you already have installed. See https://tox.readthedocs.io/en/latest/config.html#conf-sitepackages.)