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为什么 Python 不支持函数重载？ #3

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chinesehuazhou opened this issue Dec 7, 2022 · 0 comments

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good first issue help wanted

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chinesehuazhou commented Dec 7, 2022

函数重载指的是有多个同名的函数，但是它们的签名或实现有不同。

Python 中使用装饰器（例如 functools 库的 singledispatch），可以实现函数重载的效果。

然而，原生 Python 语法层面不支持函数重载。

初步原因：locals 命名空间中不允许出现同名函数

TODO：语言设计时的考虑？相关历史讨论线索？

chinesehuazhou added help wanted good first issue labels

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