This covers the basics of making graphical games with the Pygame framework. Of course, just reading about these functions probably isn’t enough to help you learn how to make games using these functions. The rest of the chapters in this book each focus on the source code for a small, complete game. This will give you an idea of what complete game programs "look like", so you can then get some ideas for how to code your own game programs.
Unlike the "Invent Your Own Computer Games with Python" book, this book assumes that you know the basics of Python programming. If you have trouble remembering how variables, functions, loops,
if-else statements, and conditions work, you can probably figure it out just by seeing what’s in the code and how the program behaves. But if you are still stuck, you can read the "Invent with Python" book (it’s for people who are completely new to programming) for free online at http://inventwithpython.com.