MarsSeed [1] filed a deletion request for python2-supplement-git [2]: Abandoned package, last updated in 2015. Python module discontinued in 2013, GitHub repo archived. Nothing on AUR depends on it, so I suggest to delete it.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-supplement-git/
