Author: microwave sam

In this video, we’ll talk about dictionaries and sets. For strings, lists, and tuples, we have been using integers as the indices and position numbers in order to get their values. Dictionaries are similar to lists except that instead of using integers as the indices, dictionaries can use any string or number or immutable type as the index. Let’s create a dictionary to demonstrate how it works. We will create a dictionary called states. Instead of using number indices, we...

In the last video, we talked about lists. There are a couple of more things that we need to talk about lists including matrices. Let’s say that we had two lists:

With lists, a and b are the same thing. If I change b, then a is also changed. Let’s test changing b.

When we run the program, we can see that even though a was a list with 1, 2, 3, 4, and 5, and we didn’t...

In this video, we’ll talk about lists. List is the term used for an ordered sequence of values where each value has an index. Before we continue to talk about lists, there is also a term called arrays from other programming languages that you might have heard about. Arrays are almost exactly like lists in Python. There’s an array module in Python for using arrays. In Python, arrays can only hold data of the same type. Lists can hold multiple...