Validation of Turkish Identification Number in Python

def turkish_id_no_check(tc_no):
    ''' turkish_id_no_check(long) -> bool
       
    Return the validation of Turkish Identification Number
     
    >>> turkish_id_no_check(98768109974)
    True 
    '''

    list_tc = map(int,str(tc_no))
    tc10 = (sum(list_tc[0:10:2])*7 - sum(list_tc[1:9:2])) % 10
    tc11 = (sum(list_tc[0:9]) + tc10) % 10
    return True if list_tc[9] == tc10 and list_tc[10] == tc11 else False