MarsSeed [1] filed a deletion request for python2-msrplib [2]: I suggest to delete this. Source has been deleted and the newer version only supports Python 3.
Also this package's dependencies cannot be built because of the missing python2-pip. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-msrplib/
