Python - Writing a simple function; input and return value. HD

Series playlist: http://www.youtube.com/playlist?list=PLG59E6Un18vgYleWjrk09rYuKI9JzrG2u&feature=view_all In this brief tutorial, I start with a blank template Python module and add a single function that squares its input. I discuss the importance of using a return statement to ensure that the function can be used as part of a larger calculation.