Looking for a reliable way to learn how to program on your own, without being overwhelmed by confusing concepts? *Head First Programming* introduces the core concepts of writing computer programs — variables, decisions, loops, functions, and objects — which apply regardless of the programming language. This book offers concrete examples and exercises in the dynamic and versatile Python language to demonstrate and reinforce these concepts. Learn the basic tools to start writing the programs that interest you, and get a better understanding of what software can (and cannot) do. When you’re finished, you’ll have the necessary foundation to learn any programming language or tackle any software project you choose. With a focus on programming concepts, this book teaches you how to: Understand the core features of all programming languages, including: variables, statements, decisions, loops, expressions, and operators Reuse code with functions Use library code to save time and effort Select the best data structure to manage complex data Write programs that talk to the Web Share your data with other programs Write programs that test themselves and help you avoid embarrassing coding errors. *Contents* Intro xxiii 1 Starting to Code: Finding Your Way 2 Textual Data: Every String Has Its Place 3 Functions: Let’s Get Organized 4 Data Files and Arrays: Sort It Out 5 Hashes and Databases: Putting Data in Its Place 6 Modular Programming: Keeping Things Straight 7 Building a Graphical User Interface: Going All Gooey 8 GUIs and Data: Data Entry Widgets 8 1/2 Exceptions and Message Boxes: Get the Message? 9 Graphical Interface Elements: Selecting the Right Tool 10 Custom Widgets and Classes: With an Object in Mind Appendix i Leftovers: The Top Ten Things (We Didn’t Cover)