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Python奇异类问题_Python_Overriding - Fatal编程技术网

Python奇异类问题

Python奇异类问题,python,overriding,Python,Overriding,我有下面一段代码,试图重写一个方法: import Queue class PriorityQueue(Queue.PriorityQueue): def put(self, item): super(PriorityQueue, self).put((item.priority, item)) 但是,当我运行它时,我得到TypeError异常: super() argument 1 must be type, not classobj 问题出在哪里?Queue.Pr

我有下面一段代码,试图重写一个方法:

import Queue
class PriorityQueue(Queue.PriorityQueue):
    def put(self, item):
        super(PriorityQueue, self).put((item.priority, item))
但是,当我运行它时,我得到
TypeError
异常:

super() argument 1 must be type, not classobj

问题出在哪里?

Queue.PriorityQueue
不是一个新样式的类,而且
super
。你必须使用

import Queue
class PriorityQueue(Queue.PriorityQueue):
    def put(self, item):
        Queue.PriorityQueue.put(self,(item.priority, item))

实际上,您还需要显式地传递“self”:Queue.PriorityQueue.put(self,(item.priority,item))