Learn to Code: Programming Fundamentals in Python

Never written a line of code? Start here. In four lessons you go from what a program is to building small, real tools in Python: a bill splitter, a guessing game and a budget checker. You learn variables, decisions, loops, functions, lists and dictionaries, and the skills that separate people who can program from people who have only read about it: tracing code by hand, reading error messages, debugging, and testing your own work.