Map is a common way to transform lists in most programming languages. In Python, map is a function that loops over a list and applies a function (that you provide) to each item. Your function receives ...

That way, you wouldn’t need to know how to add to a list in Python as you could simply update your text file. But that is a story for another time! Also read: How to call a function in Python.

If you only want to grab a random element from a list in Python, you can do this with the random package as well. Import the random package by including import random near the top of your code.