Overriding a specific setter/getter method without having to redefine both in the subclass

override.py

#!/usr/bin/env python3


class A:
    def __init__(self, value):
        self._x = value

    @property
    def x(self):
        return self._x

    @x.setter
    def x(self, value):
        self._x = value


class B(A):
    def __init__(self, value):
        super().__init__(value)

    @A.x.setter
    def x(self, value):
        self._x += value


if __name__ == "__main__":
    a, b = A(2), B(3)

    print(a.x)  # 2
    print(b.x)  # 3

    a.x, b.x = 4, 4

    print(a.x)  # 4
    print(b.x)  # 7