MarsSeed [1] filed a deletion request for ironpython [2]: Unmaintained old package from 2018, with a wrong name (should have been ironpython2). This is a Python2 interpreter & runtime for Mono/Dotnet. Meanwhile upstream has released IronPython3 (for Python3). Not useful to keep this defunct package. Nothing depends on it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ironpython/