MarsSeed [1] filed a deletion request for cadnano-git [2]: Broken package from 2017, missing a now nonexistent legacy dependency ('python-sip', a.k.a. 'python-sip4'). Upstream is unmaintained since 2018. [a] [a]: https://github.com/cadnano/cadnano2.5 [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/cadnano-git/