In this session I show you how you can take Flask, a so-called "microframework", and write readable, usable, testable and intelligent code for all of your macro-scale applications. We'll go through basic API design, ORM integration (including some popular non-relational databases), modular design with blueprints, and testing. By the end of this talk, you'll understand why Flask is the little framework that lets you do a lot, and be armed with the tools & knowledge to write applications of all sizes.