MarsSeed [1] filed a deletion request for python-graph [2]: This Python graph utility has not been developed since 2012. [a]
There seems to be a good alternative for this use case - one which is continually maintained: https://aur.archlinux.org/packages/python-graph-tool [a]: https://pypi.org/project/python-graph-core/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-graph/
