For openSUSE Tumbleweed ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:crameleon:LibertaCasa/openSUSE_Tumbleweed_ARM/home:crameleon:LibertaCasa.repo
zypper refresh
zypper install python-pytest-runner
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:crameleon:LibertaCasa/openSUSE_Tumbleweed/home:crameleon:LibertaCasa.repo
zypper refresh
zypper install python-pytest-runner
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:crameleon:LibertaCasa/15.6/home:crameleon:LibertaCasa.repo
zypper refresh
zypper install python-pytest-runner