ROT-13 is a simple substitution cipher that transforms text and substitutes each character with another, thirteen characters after it. For example, the letter a would be substituted with the letter n and vice versa. Elements such as numbers, special characters, and a character's case are unaffected by the cipher. While Python does offer a built-in way of decoding ROT-13, we are going to pretend that it doesn't exist and manually decode ROT-13 data. We will use the built-in ROT-13 decoding method in our script.
Before we pretend that this functionality doesn't exist, let's quickly use it to illustrate how we could encode and decode ROT-13 data with Python 2:
>>> original_data = 'Why, ...
