function 是 python 中内置 class '函数'的实例吗？

Question

In python, when we create a function, the class or type of that function is function :

 def temp():
    pass

>>> type(temp)
<class 'function'>
>>> temp.__class__
<class 'function'>

I wonder if the code def ~(): calls the __call__ function of the built-in class function . I want to check the source code of the built-in class function , but I don't know where it is.

If you know, please answer.

Answer 1

From the link given by @IainShelvington in the comments: https://github.com/python/cpython/blob/master/Objects/funcobject.c

There is no __call__ call or reference anywhere in the source code.