Python中的Overload()运算符 [英] Overload () operator in Python

问题描述

我正在尝试为我的课程学习Python中的currying，并且必须为此重载()运算符.但是，我不知道如何才能重载()运算符.您能解释一下括号重载背后的逻辑吗?我应该先重载，然后再重载吗?另外，圆括号运算符是否有特殊名称?

I am trying to learn currying in Python for my class and I have to overload the () operator for it. However, I do not understand how can I can go about overloading the () operator. Can you explain the logic behind overloading the parentheses? Should I overload first ( and then ) or can I do any of these? Also, is there special name for parentheses operator?

推荐答案

您可以通过实现__call__方法来使对象可调用:

You can make an object callable by implementing the __call__ method:

class FunctionLike(object):
    def __call__(self, a):
        print("I got called with {!r}!".format(a))

fn = FunctionLike()
fn(10)

# --> I got called with 10!

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