MarsSeed [1] filed a deletion request for python-pyvisa-py-git [2]: Unmaintained, broken Python2/Python3 VCS package from 2018. Upstream doesn't support Python2. Not useful to keep in this state. Last comment apart from mine is from 2018, so it seems no one is using this git build. There's a working and up-to-date stable package on AUR. [a] [a]: https://aur.archlinux.org/packages/python-pyvisa-py [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-pyvisa-py-git/