We will exclusively be using Python 3.x, and specifically in my case 3.6.1. While Mac and Linux normally have Python version 2 installed, and Windows systems do not. So it is likely that in any case that Python 3 will need to be installed. You can find references for Python installers at www.python.org.
You can check Python's version with python --version
pip comes installed with Python 3.x, so we will omit instructions on its installation. Additionally, all command line examples in this book are run on a Mac. For Linux users the commands should be identical. On Windows, there are alternate commands (like dir instead of ...
