For SLE 15 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:spacewalk/SLE_15/systemsmanagement:spacewalk.repo
zypper refresh
zypper install python-jabberpy
For SLE 12 SP5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:spacewalk/SLE_12_SP5/systemsmanagement:spacewalk.repo
zypper refresh
zypper install python-jabberpy
For SLE 12 SP4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:spacewalk/SLE_12_SP4/systemsmanagement:spacewalk.repo
zypper refresh
zypper install python-jabberpy
For SLE 12 SP3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:spacewalk/SLE_12_SP3/systemsmanagement:spacewalk.repo
zypper refresh
zypper install python-jabberpy