The basics of ZPL and how it handles graphics in a bit more detail.

CheckIp is a python package used to resolve public (WAN) IP from one of many supported providers.

A virtual environment is a Python environment such that the Python interpreter, libraries and scripts installed into it are isolated from those installed in other virtual environments, and (by default) any libraries installed in a “system” Python.

The built-in Django User model follows the pattern consisted of username, email and password. In this tutorial you will learn to RESTfully simplify it to just email and password.