Functions & Methods: How Do I Work with Program Functions to Work with Data and Trigger Actions?

In this chapter, we will look at how to work with functions that provide all the functionality and actions we want to use in our programs. We will also discuss how you can write your own functions to make code reusable, and how to work with the Python Package Index (PyPI) when you want to use functions that are not in the standard Python language set and that you don’t want to program yourself.