Labs 4 and 5 require a few daemon processes to monitor SQS messages. To make it easier for you, there is a Daemon class you can use. Simply subclass it and override the run() method. You can find the code listing here:
A simple unix/linux daemon in Python by Sander Marechal
I’d link to put some links here for other languages like PHP and C#, too. If you have information about those, please leave a comment below.