I tried to declared a variable contains of Datetime like this
ts1.departure_date = \'2012-03-03 10:10:10\'
but then I got this error
expiration_year = int(form.expiration_date.data[:4]) expiration_month = int(form.expiration_date.data[5:7]) expiration_date = int(form.expiration_date.data[8:10]) expiration_date =datetime(expiration_year,expiration_month,expiration_date)