That is correct. python-sphinx-rtd-theme cannot be installed as this package was removed:
https://launchpad.net/ubuntu/+source/sphinx-rtd-theme/0.4.3+dfsg-3 Use python3-sphinx-rtd-theme (the Python 3 package) instead. ** Changed in: sphinx-rtd-theme (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872646 Title: python-sphinx-rtd-theme dependency mistchatch with sphinx-rtd-theme- common[0.4.3+dfsg-3] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sphinx-rtd-theme/+bug/1872646/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs