How to move robot forward and backward until the execution is stop in python

[bayodesegun]

@AmirulJ

and when I aborting the program, the robot keep moving. May I know why?

See this post:

How to stop your robot when ROS is shutting down

You might already know that ROS topics operate in “obey the last command” mode when working with robots in Gazebo simulations. In other words, the robot continues to execute the last message published to a given topic, even after you stop publishing the message. What this means, for example, is that if you publish a Twist message to move your robot and then shut down the ROS system, the robot continues moving. But this is not always desirable, so how do you ensure the robot stops when the ROS s…