pickle 模块 序列化

使用pickle模块将数据对象保存到文件

import pickle
 
data1 = {'a': [1, 2.0, 3, 4+6j],
         'b': ('string', u'Unicode string'),
         'c': None}
 
selfref_list = [1, 2, 3]
selfref_list.append(selfref_list)
 
output = open('data.pkl', 'wb')
 
# Pickle dictionary using protocol 0.
pickle.dump(data1, output)
 
# Pickle the list using the highest protocol available.
pickle.dump(selfref_list, output, -1)
 
output.close()

使用pickle模块从文件中重构python对象

import pprint, pickle
 
pkl_file = open('data.pkl', 'rb')
 
data1 = pickle.load(pkl_file)
pprint.pprint(data1)
 
data2 = pickle.load(pkl_file)
pprint.pprint(data2)
 
pkl_file.close()