MarsSeed [1] filed a deletion request for python-mujoco-py [2]: Obsolete since 2021 ([a]): "mujoco-py does not support versions of MuJoCo after 2.1.0. New users should depend on the official MuJoCo Python bindings." The mentioned official Python library is available on AUR. [b] [a]: https://github.com/openai/mujoco-py [b]: https://aur.archlinux.org/packages/python-mujoco [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-mujoco-py/