def __sub__(self, p): 
        return Point(self.x - p.x, self.y - p.y)
JRPC test: configuration.sc.list
dataset/ETHPy150Open boldport/pcbmode/pcbmode/utils/point.py/Point.__sub__--crossover with--dataset/ETHPy150Open satnet-project/server/services/configuration/jrpc/views/segments/spacecraft.py/list_spacecraft