Test-Driven Development with Python, 2nd Edition

Prerequisites and Assumptions

Here’s an outline of what I’m assuming about you and what you already know, as well as what software you’ll need ready and installed on your computer.

Python 3 and Programming

I’ve tried to write this book with beginners in mind, but if you’re new to programming, I’m assuming that you’ve already learned the basics of Python. So if you haven’t already, do run through a Python beginner’s tutorial or get an introductory book like Dive Into Python or Learn Python the Hard Way, or, just for fun, Invent Your Own Computer Games with Python, all of which are excellent introductions.

If you’re an experienced programmer but new to Python, you should get along just fine. Python is joyously simple to understand.

I’m using Python 3 for this book. When I wrote the first edition in 2013–14, Python 3 had been around for several years, and the world was just about on the tipping point at which it was the preferred choice. You should be able to follow this book on Mac, Windows, or Linux. Detailed installation instructions for each OS follow.

Tip

This book was tested against Python 3.6. If you’re on an earlier version, you will find minor differences (the f-string syntax, for example), so you’re best off upgrading if you can.

I wouldn’t recommend trying to use Python 2, as the differences are more substantial. You’ll still be able to carry across all the lessons you learn in this book if your next project happens to be in Python 2. But spending time figuring out whether ...