Includes index.

Getting started -- Remember this: memory and variables -- Basic math -- Types of data -- Input -- GUIs: graphical user interfaces -- Decisions, decisions -- Loop the loop -- Just for you: comments -- Game time -- Nested and variable loops -- Collecting things together: lists and dictionaries -- Functions -- Objects -- Modules -- Graphics -- Sprites and collision detection -- A new kind of input: events -- Sound -- More GUIs -- Print formatting and strings -- File input and output -- Take a chance: randomness -- Computer simulations -- Skier explained -- Python battle -- What's next? -- Variable naming rules -- Differences between Python 2 and 3 -- Answers to self-test questions.

Learn to talk to your computer in its own language! Whether you want to create a game, start a business, or solve an important problem, the first step is learning to write your own programs. Programming is a fun challenge, and it's easy to get started! This updated and revised edition of Hello World! introduces the world of computer programming in a clear and engaging style. It is full of examples that will get you thinking and learning. Reviewed by professional educators, this book is kid-tested and parent-approved. You don't need to know anything about programming to use the book, just the basics of using a computer. If you can start a program and save a file, you'll be off and running! -- Source other than Library of Congress.