def update(self):

        tNow = time.time()
        dt = self.tLast - tNow
        self.tLast = tNow

        if self.activeTracker:
            self.activeTracker.dt = dt
            self.activeTracker.update()
dataset/ETHPy150Open RobotLocomotion/director/src/python/director/cameracontrol.py/CameraTrackerManager.update/swapped operands of `-`