rubygem-xmlrpc from home:Leen-Meyer:puppet project
Select Your Operating System
Add repository and install manually
For 42.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:puppet/42.3/home:Leen-Meyer:puppet.repo zypper refresh zypper install rubygem-xmlrpc