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