def __sub__(self, rhs):
        x, y = self._v
        xx, yy = rhs
        return Vector2.from_floats(x-xx, yy-y)
dataset/ETHPy150Open PythonProgramming/Beginning-Game-Development-with-Python-and-Pygame/gameobjects/vector2.py/Vector2.__sub__/swapped operands of `-`