是否可以在MySQL中暂时禁用约束？

我有两个Django模型，每个模型都有一个外键。由于ForeignKey约束，删除模型实例将返回错误：

cursor.execute("DELETE FROM myapp_item WHERE n = %s", n)
transaction.commit_unless_managed()  #a foreign key constraint fails here

cursor.execute("DELETE FROM myapp_style WHERE n = %s", n)
transaction.commit_unless_managed()

是否可以暂时禁用约束并仍然删除？