MarsSeed [1] filed a deletion request for python2-matplotlib [2]: No longer used prebuilt x86_64 '-bin' package in disguise, compiled 4.5+ years ago (Feb 2020). [a]
Upstream discontinued Python2 support since then. Full AUR dependency chain has been unbuildable for at least a year. [a]: https://pypi.org/project/matplotlib/2.2.5 [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-matplotlib/
