problems with pisi sync

[Robin Paulson]

i'm trying to sync data from google calendar to openmoko dates, using
pisi, but get this error message. my google calendar account is set up
in the pisi conf file

---------------------------------------------------------------------------

root at om-gta02:~# pisi googleCalendar pimlicodates
Traceback (most recent call
last):....................................................] Starting
Configuration
  File "/bin/pisi", line 156, in <module>
    pisicli.startCLI()
  File "/opt/pisi/pisicli.py", line 215, in startCLI
    source = pisi.importModules(configfolder,  config,  modulesToLoad,
 modulesNamesCombined, soft)
  File "/opt/pisi/pisi.py", line 81, in importModules
    exec "from modules import " + modulename + " as module"+i.__str__()
  File "<string>", line 1, in <module>
  File "/opt/pisi/modules/calendar_google.py", line 20, in <module>
    import gdata.calendar.service
ImportError: No module named gdata.calendar.service

---------------------------------------------------------------------------

python-gdata is installed

does anyone have any ideas?