Just a quick pointer that the oslosphinx theme does not work with Sphinx 2.0, which was released yesterday, failing with the following error: Exception occurred: File "/home/zuul/src/git.openstack.org/openstack/nova-specs/.tox/docs/lib/python3.6/site-packages/oslosphinx/__init__.py", line 76, in builder_inited app.info('Using openstack theme from %s' % theme_dir) AttributeError: 'Sphinx' object has no attribute 'info' The oslo team have decided not to fix these issues, given that oslosphinx is EOL since Pike, and we suggest that people instead migrate to openstackdocstheme [1] (for projects that are able to use the OpenStack brand [2]) or something else (for projects that are not). For the former, I suggest follow the openstackdocstheme [1] or look at what we've done in nova-specs [3] for an existing example. If you have issues, please reach out on #openstack-doc and one of us will try our best to help you migrate. I'll work with infra to get the repo shuttered and avoid any further confusion with this theme going forward. Stephen [1] https://docs.openstack.org/openstackdocstheme/latest/ [2] https://www.openstack.org/brand [3] https://review.openstack.org/#/c/648670/