For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dadistromaker:os/openSUSE_Tumbleweed/home:dadistromaker:os.repo
zypper refresh
zypper install python-xml
For openSUSE Leap 15.2 ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dadistromaker:os/openSUSE_Leap_15.2_ARM/home:dadistromaker:os.repo
zypper refresh
zypper install python-xml
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dadistromaker:os/15.4/home:dadistromaker:os.repo
zypper refresh
zypper install python-xml