Installing Python 3

We will be using Python 3 throughout this book. Make sure you have installed the latest version of Python 3 on your machine. Type the following command to check:

$ python3 --version

If you see something like Python 3.x.x (where x.x are version numbers) printed out, you are good to go. If not, installing it is straightforward.

Installing on Ubuntu

Python 3 is already installed by default on Ubuntu 14.xx and above. If not, you can install it using the following command:

$ sudo apt-get install python3

Run the check command like we did earlier:

$ python3 --version

You should see the version number as output.

Installing on Mac OS X

If you are on Mac OS X, it is recommended that you use Homebrew to install Python 3. It is a great package installer for Mac OS X and it is really easy to use. If you don't have Homebrew, you can install it using the following command:

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew...