rst0aur [1] filed a orphan request for virt-bootstrap-git [2]: Hello I would like to update the list of dependencies of this package. virt-bootstrap is compatible with Python 3, therefore we don't need python2 as dependency and python2-passlib. It also depends on libguestfs-python which is available on AUR.
[1] https://aur.archlinux.org/account/rst0aur/ [2] https://aur.archlinux.org/pkgbase/virt-bootstrap-git/
