泡菜还是json? [英] Pickle or json?

问题描述

我需要将一个密钥为str类型且值为int s 的dict对象保存到磁盘上，然后将其恢复.像这样:

I need to save to disk a little dict object whose keys are of the type str and values are ints and then recover it. Something like this:

{'juanjo': 2, 'pedro':99, 'other': 333}

什么是最佳选择，为什么?用pickle或simplejson序列化它?

What is the best option and why? Serialize it with pickle or with simplejson?

我正在使用Python 2.6.

I am using Python 2.6.

推荐答案

如果您没有任何互操作性要求(例如，您将要在Python中使用数据)并且二进制格式也可以，请使用 cPickle ，它可以使您真正快速地进行Python对象序列化.

If you do not have any interoperability requirements (e.g. you are just going to use the data with Python) and a binary format is fine, go with cPickle which gives you really fast Python object serialization.

如果您希望互操作性或想要一种文本格式来存储数据，请使用JSON(或其他一些适当的格式，具体取决于您的约束).

If you want interoperability or you want a text format to store your data, go with JSON (or some other appropriate format depending on your constraints).

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