Building a Receipt Generator with Flask and...

Have you ever wondered how receipt generators work? Like the ones used in Nadia, Stop2Shop or even Mat-Ice. Even before I became a techie, I always wondered how text written on the interface magically turned into a formatted receipt with the company's branding and all. At that point in my life, I didn't question things so much. Because I believed that some things don't have answers, or was it because I didn't have much tech-savvy peeps around me then? I guess we'll never know. Well... all that h