Flask Tutorial – Creating a Simple Micro Blogging Application. Do you want to develop an application using Python and Flask? Here you have the opportunity to learn through examples. In this flask tutorial for beginners, Coding compiler will create a simple microblogging application. It only supports one user who can create a plain text entry without pushing or commenting, but it still has everything you need to start. I will use Flask and SQLite from the Python framework as a database, so you don’t need anything else. Let’s start learning Python Flask.