Do you want to write concise, readable, and efficient code? Well, python decorators may help you on your journey. — In chapter 7 of Fluent Python, Luciano Ramalho discusses decorators and closures. They are not super common in basic DS work, however as you start building production models writing async code, they become an invaluable tool. Without further ado, let’s dive in. 1 — What’s a decorator?