>>> import datetime,time
>>> def dateDiffInSeconds(date1, date2):
... timedelta = date2 - date1
... return timedelta.days*24*3600 + timedelta.seconds
...
>>> date1 = datetime.datetime(2006,02,17,15,30,00)
>>> date2 = datetime.datetime(2006,05,18,11,01,00)
>>> print dateDiffInSeconds(date1,date2)
7759860
>>>
