对于 SLE 12 SP4，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:saltstack:products:next:sles12-dependencies/SLE_12_SP4/systemsmanagement:saltstack:products:next:sles12-dependencies.repo
zypper refresh
zypper install python-tornado
对于 SLE 12 SP3，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/systemsmanagement:saltstack:products:next:sles12-dependencies/SLE_12_SP3/systemsmanagement:saltstack:products:next:sles12-dependencies.repo
zypper refresh
zypper install python-tornado