pickle 持久化对象

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# -*- coding: utf-8 -*-
 
import pickle
# 也可以这样：
# import cPickle as pickle
 
obj = {"a": 1, "b": 2, "c": 3}
 
# 将 obj 持久化保存到文件 tmp.txt 中
pickle.dump(obj, open("tmp.txt", "w"))
 
# do something else ...
 
# 从 tmp.txt 中读取并恢复 obj 对象
obj2 = pickle.load(open("tmp.txt", "r"))
 
print obj2