def diff(self, pose):
        """
        Return a pose that is the difference between self and pose (in
        x, y, z, and theta)
        """
        return Pose(self.x-pose.x,
                    self.y-pose.y,
                    self.z-pose.z,
                    fixAnglePlusMinusPi(pose.theta-self.theta))
dataset/ETHPy150Open rll/lfd/lfd/rapprentice/util.py/Pose.diff/swapped operands of `-`