بردار با رفتار طبیعی

class Vector:
    def __init__(self, x, y):
        self.x, self.y = x, y
    def __add__(self, other):
        return Vector(self.x + other.x, self.y + other.y)
    def __eq__(self, other):
        return (self.x, self.y) == (other.x, other.y)
    def __len__(self):
        return 2
    def __repr__(self):
        return f"Vector({self.x}, {self.y})"

a, b = Vector(1, 2), Vector(3, 4)
print(a + b)            # Vector(4, 6)
print((a + b) == Vector(4, 6))  # True