如何使用泡菜来保存字典? [英] How can I use pickle to save a dict?

问题描述

我已经查看了 Python 文档 提供的信息，但我还是有点糊涂.有人可以发布示例代码来编写一个新文件，然后使用 pickle 将字典转储到其中吗?

I have looked through the information that the Python docs give, but I'm still a little confused. Could somebody post sample code that would write a new file then use pickle to dump a dictionary into it?

推荐答案

试试这个:

import pickle

a = {'hello': 'world'}

with open('filename.pickle', 'wb') as handle:
    pickle.dump(a, handle, protocol=pickle.HIGHEST_PROTOCOL)

with open('filename.pickle', 'rb') as handle:
    b = pickle.load(handle)

print a == b

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