docs: Use python3 for building docs
python2 is EOL.
@@ -60,11 +60,11 @@ deps=
commands=flake8 --select=F,E9 {posargs:teuthology scripts}
[testenv:docs]
+basepython=python3
install_command = pip install --upgrade {opts} {packages}
-basepython=python
changedir=docs
deps=
- -r{toxinidir}/requirements2.txt
+ -r{toxinidir}/requirements3.txt
sphinx
mock==2.0.0
commands=
