如今，随着 Python 3.10 beta 版的发布，终于将 switch-case 语句纳入其中。 带圆括号的上下文管理器：现在支持在上下文管理器中跨多行使用括号进行延续。

Rejoice! Gone are the long chains of if…else statements, because switch statements will soon be here — sort of. What the Python gods are actually giving us are match statements. match s… ...

Learn about Python metaclasses, how to define and use them, and explore examples to understand their functionality with this comprehensive tutorial.