shelve模块

 1 import shelve
 2  
 3 f = shelve.open(r'shelve.txt')
 4  
 5 # f['stu1_info']={'name':'alex','age':'18'}
 6 # f['stu2_info']={'name':'alvin','age':'20'}
 7 # f['school_info']={'website':'oldboyedu.com','city':'beijing'}
 8 #
 9 #
10 # f.close()
11  
12 print(f.get('stu_info')['age'])

 shelve模块比pickle模块简单，只有一个open函数，返回类似字典的对象，可读可写;key必须为字符串，而值可以是python所支持的数据类型