MarsSeed [1] filed a deletion request for python2-sherpa [2]: I suggest to drop this legacy Python 2 package as well, for the same reason I submitted for all scientific and astronomy packages for which the Python 2 ecosystem is essentially defunct and dead now. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-sherpa/