TypeError：execute（）得到了一个意外的关键字参数＆＃39; multi＆＃39;

Question

我正在尝试使用MySQLdb模块删除数据库中的记录。 在https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlcursor-execute.html中，我发现multi = True表示在执行中执行多个quires但它会产生错误。有人能帮助我知道我所缺少的东西吗？

query = "DELETE FROM Service_Machine WHERE Id=(SELECT Id FROM Machines WHERE Id="+id+");" \
        "DELETE FROM Machine_Usage WHERE Id=(SELECT Id FROM Machines WHERE Id="+id+");" \
                    "DELETE FROM Machines WHERE Id="+id+");"
print(query)
self.cursor.execute(query, multi=True)