def __sub__(self, p): #p - p
        if not isinstance(p, self.__class__):
            return self.__class__(self.x - p, self.y - p)
        return self.__class__(self.x - p.x, self.y - p.y)
dataset/ETHPy150Open gferreira/hTools2/Lib/hTools2/extras/outline.py/MathPoint.__sub__/original