Traceback (most recent call last):
  File "./nagios.py", line 18, in ?
    import cache
  File "/usr/lib/nagios/plugins/webreboot/cache.py", line 16, in ?
    from wre_1_2.WebReboot import WebReboot as WRE
  File "/usr/lib/nagios/plugins/webreboot/wre_1_2/WebReboot.py", line 18, in ?
    from WebRebootService_services import *
  File "/usr/lib/nagios/plugins/webreboot/wre_1_2/WebRebootService_services.py", line 7, in ?
    from WebRebootService_services_types import *
  File "/usr/lib/nagios/plugins/webreboot/wre_1_2/WebRebootService_services_types.py", line 7, in ?
    import ZSI
ImportError: No module named ZSI