Python 3 文档 - 函数注释

Question

我使用以下格式记录我的 Python 代码：

def my_function(param: str) -> dict:
   some code

我不知道如何记录传递给另一个函数的函数。

例如：

def my_function(my_other_function: ???) -> dict:
    some code

如何做函数注解？

Answer 1

First Thoughts: "Everything in python is an object"

我在文档中找不到任何内容，但作为 everything in python is an object 我会争取 object。

def my_function(my_other_function: object) -> dict:
    some code

证明：

if isinstance(my_function, my_function, object):
    print("yes")
    >yes

无论如何，这可能不是太明确，因此：

Seconds thoughts: Using proper type hints

根据 COLDSPEED 的评论，更明确的类型提示将使用 typing

import typing
def my_function(my_other_function:typing.Callable):->dict:
    pass

"The only way that annotations take on meaning is when they are interpreted by third-party libraries". Which means, for your source-code itself, it doesn't change anything. Just wanted to mention it.

Python 3 文档 - 函数注释

Python 3 Documentation - Function Annotation

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