chapter 4: Writing Your First Application 4.1 Understanding the Integrated DeveLopment Environment 4.1.1 Linux Automatic Install Script $ sudo wget -qO- https://get.docker.com/ | sh remove hell-world $ sudo docker rm `sudo docker ps -aq` $ sudo docker rmi hello-world . 4.2 Starting IDLE 4.3 Creating the Application 4.4 Running the Application 4.5 Understanding the Use of Indentation 4.6 Adding Comments 4.7 Loading and Running Existing Applications 4.8 Closing IDLE