7.2__getattr____getattribute__魔法函数

Posted 2022-05-23 zydeboke

 1 #!/user/bin/env python
 2 # -*- coding:utf-8 -*-
 3 # __getattr__、__getattribute__
 4 # __getattr__ 就是在查找不到属性的时候调用
 5 # __getattribute__ 无条件进入__getattribute__
 6 from datetime import date
 7 
 8 
 9 class User:
10     def __init__(self, name, birthday, info=):
11         self.name = name
12         self.birthday = birthday
13         self.info = info
14 
15     def __getattr__(self, item):
16         return self.info[item]
17 
18     # def __getattribute__(self, item):
19     #     return ‘__getattribute__‘
20 
21 
22 if __name__ == ‘__main__‘:
23     user = User(‘zy‘, date(year=1998, month=6, day=8), ‘company‘: ‘imooc‘)
24     print(user.company)
25     print(user.name)

imooc
zy

　　

#!/user/bin/env python
# -*- coding:utf-8 -*-
# __getattr__、__getattribute__
# __getattr__ 就是在查找不到属性的时候调用
# __getattribute__ 无条件进入__getattribute__
from datetime import date


class User:
    def __init__(self, name, birthday, info=):
        self.name = name
        self.birthday = birthday
        self.info = info

    def __getattr__(self, item):
        return self.info[item]

    def __getattribute__(self, item):
        return ‘__getattribute__‘


if __name__ == ‘__main__‘:
    user = User(‘zy‘, date(year=1998, month=6, day=8), ‘company‘: ‘imooc‘)
    print(user.company)
    print(user.name)

__getattribute__
__getattribute__