Throughout this chapter we will be writing a basic Python application. You don't have to download any code to follow along with this chapter as we'll be creating files from scratch. However, if you ever get lost and need more guidance, you can view the resulting code on GitHub:
https://github.com/PacktPublishing/Mastering-Vim/tree/master/Chapter01
We will be using Vim to primarily write Python code throughout this book, and it is assumed that the reader is somewhat familiar with the language. Examples assume you're using Python 3 syntax.