Python 装饰器看起来像魔法，但其实就是 一个函数，包裹另一个函数，实现不改源代码的前提下扩展功能。 很多人初学时一看 @ 符号就晕，其实掌握了套路就会发现： 写得妙，用得香！ 🧠一句话理解： 装饰器 = 外层函数 + 内层函数 + 返回内层函数。 📦最简单的装饰器写法： python 复制编辑 def my ...

A helper repo to illustrate how and why python decorators work. There are some examples of some decorators to start.

Python Decorator enables developers to modify or extend a function or class’s functionalities by wrapping it using a single line of code.

In this post I want to focus mainly on the last of the issues above. That is the interaction between decorators and descriptors, where a function wrapper is applied to a Python object which is ...

Many Pythonistas are familiar with using decorators, but far fewer understand what’s happening under the hood and can write their own. It takes a little effort to learn their subtleties but, … ...