For 15.7 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pinvernizzi:Uyuni:Utils/15.7/home:pinvernizzi:Uyuni:Utils.repo
zypper refresh
zypper install pyhcl
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pinvernizzi:Uyuni:Utils/15.6/home:pinvernizzi:Uyuni:Utils.repo
zypper refresh
zypper install pyhcl
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pinvernizzi:Uyuni:Utils/15.5/home:pinvernizzi:Uyuni:Utils.repo
zypper refresh
zypper install pyhcl