MarsSeed [1] filed a deletion request for python-plumbum-git [2]: Seems no one is using this VCS package from AUR, so it's better to delete it than maintain it to make it work again.
Extra repo carries the latest stable build: https://archlinux.org/packages/?q=python-plumbum [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-plumbum-git/
