micwoj92 [1] filed a deletion request for python-numdifftools [2]: Check fails. Was mentioned in comments year ago and still not fixed. Upstream itself seems to be abandoned, with no activity past 3 years.
[1] https://aur.archlinux.org/account/micwoj92/ [2] https://aur.archlinux.org/pkgbase/python-numdifftools/
