2012-03-30 10:09:36.885915 [ERR] mod_python.c:293 Error calling python script
2012-03-30 10:09:36.885915 [ERR] mod_python.c:164 Python Error by calling script "python.mytest": <type 'exceptions.TypeError'>
Message: in method 'CoreSession_setDTMFCallback', argument 2 of type 'void *'
Exception: None

Traceback (most recent call last)
        File: "/opt/freeswitch/scripts/python/mytest.py", line 26, in handler
        File: "/usr/lib/python2.6/dist-packages/freeswitch.py", line 288, in setDTMFCallback