Calendar indicator crashes since it cannot parse a specific time string

When I install and run the indicator, I encountered with this exception:

Traceback (most recent call last):
  File "/usr/bin/calendar-indicator", line 43, in <module>
    ci=CalendarIndicator()
  File "/usr/share/calendar-indicator/calendarindicator.py", line 211, in __init__
    self.update_menu()
  File "/usr/share/calendar-indicator/calendarindicator.py", line 316, in update_menu
    com =getTimeAndDateV2(self.events[0]['start'][key_event_time])
  File "/usr/share/calendar-indicator/calendarindicator.py", line 101, in getTimeAndDateV2
    com2 = datetime.datetime.strptime(temp2[0],'%H:%M:%S')
UnboundLocalError: local variable 'temp2' referenced before assignment

When I print the relevant time_string parameter of getTimeAndDateV2 method, I see "2012-12-04T12:00:00Z" string. I think the inner else part of getTimeAndDateV2 function has a typo, since there is no temp2 variable. It may be changed to temp[1] but this does not fix my case.

strptime(temp[1],'%H:%M:%S') must also be changed to strptime(temp[1],'%H:%M:%SZ') but I don't know what Z stands for.