怎么把Python 2的'from Queue import Queue，Empty'转换成Python 3?

问题描述

我正在将用Python 2编写的源代码转换为Python 3，我偶然发现了这一点:

I'm converting a source code written in Python 2 to Python 3 and I stumbled into this:

from Queue import Queue, Empty

我将其更改为:

from multiprocessing import Queue, Empty

但这给了我一个例外:

ImportError: cannot import name 'Empty'

我该如何解决?

推荐答案

multiprocessing.Queue 用于过程，不要让大小写混淆您. Queue ，它已重命名为 queue 用于线程.

multiprocessing.Queue is used for processes, don't let the capitalization confuse you. Queue, which was renamed to queue in Python 3, is for threads.

Empty 和 Queue 位于queue模块中，因此请从那里获取它们.

Both Empty and Queue are located in the queue module, so grab them from there.

这篇关于怎么把Python 2的'from Queue import Queue，Empty'转换成Python 3?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！