MarsSeed [1] filed a deletion request for python2-pybrain [2]: Unneeded Python2 machine learning library from 2015 [a], seems not used or useful to keep. No other pkg depends on it. [a]: https://github.com/pybrain/pybrain/releases [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-pybrain/