Learn Web Development with Python

About the names

You may have noticed that, in order to keep the examples as short as possible, I have called many objects using simple letters, like a, b, c, d, and so on. This is perfectly OK when you debug on the console or when you show that a + b == 7, but it's bad practice when it comes to professional coding (or any type of coding, for that matter). I hope you will indulge me if I sometimes do it; the reason is to present the code in a more compact way.

In a real environment though, when you choose names for your data, you should choose them carefully and they should reflect what the data is about. So, if you have a collection of Customer objects, customers is a perfectly good name for it. Would customers_list, customers_tuple, or ...