需要 SLE 15 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:Uyuni:Master:SLE15-Uyuni-Client-Tools/SLE_15/systemsmanagement:Uyuni:Master:SLE15-Uyuni-Client-Tools.repo
zypper refresh
zypper install python-websocket-client