callproc not returning multiple results

Hi there

I am having some problems with the callproc() when trying to receive the recordsets. I am calling a procedure that returns two recordsets and two output parameters. I am able to retrieve the output parameters but I am not able to access the two recordsets. The script that I have written is below, and appears to be correct as far as I can see based upon what I have read on the mySQL site. Can someone give me some pointers as to what I have done wrong.

        import mysql.connector
        try:
            self.connection = mysql.connector.connect(**{'user':'xxx', 'host':'localhost', 'database':'xxx'})
            curs = self.connection.cursor(buffered=True)
            curs.callproc('procname', 'input/output parameters')

            for result in curs.stored_results():
                rows = result.fetchall()

Thanks

Jake