如何在我的 static 方法中调用运算符重载方法？

Question

I'm slowly teaching myself Classes in Python and have hit a brick wall. I could desperately use some help.

I have created the base class, Number , and would like to figure out how to do two things:

1. Overload the function of addition() of the class Number through the child class Rational(Number) , and update the object from which it is called
2. Create a static method addition that calls the overload function in its return statement and serves as a method override of its parent class

I've managed to write the following lines of code:

class Number:
    def __init__(self, number):
        self.number = number

    def addition(self, other_rational_num):
        pass

class Rational(Number):
    def __init__(self, p, q, number):
        super().__init__(number)
        self.__p = p
        self.__q = q

    def __add__(self, other_rational_num):
        number = self.number + other_rational_num.number
        return Number(number)

    @staticmethod
    def addition(number, other_rational_num):
        return Rational.__add__(number, other_rational_num)

If I type the basic operation in the static method's return statement return number + other_rational_num , I don't get an error. But how can I leverage the overload method I already created?

Any support is much appreciated!

Answer 1

Why is it a static method? Why not just:

    def addition(self, other_rational_num):
        return self.__add__(other_rational_num)

And do you really want a Rational plus a Rational to return a Number? That seems odd.