returns True if row should NOT be included according to filters

def row_is_filtered(self, row_subs, filters):
        '''returns True if row should NOT be included according to filters'''
        for filtername in filters:
            filtervalue = filters[filtername]
            if filtername in row_subs:
                row_subs_value = row_subs[filtername]
                if str(row_subs_value) != str(filtervalue):
                    return True
            else:
                print("fw: Unknown filter keyword (%s)" % (filtername,))
        return False