Programmer Think

A concept of encapsulation In fact, packaging is everywhere in our life, such as televisions, computers, mobile phones and other items. Usually, we can only see the external shape and use the functions provided by them, but we can't see the complex hardware composition inside. These are encapsulated and can't be seen by us. We can avoid so ...

Introduce Property dynamic propertygetattr,__ getattribute__ Magic functionAttribute descriptor and attribute lookup processThe difference between new and initCustom metaclassImplement ORM through metaclass 1, Property dynamic property from datetime import date class User: def __init__(self, name, birthday): self.name = name ...