Exercise 38: Doing Things to Lists
You have learned about lists. When you learned about while-loops you "appended" numbers to the end of a list and printed them out. There were also Study Drills where you were supposed to find all the other things you can do to lists in the Python documentation. That was a while back, so review those topics if you do not know what I'm talking about.
Found it? Remember it? Good. When you did this you had a list, and you "called" the function append on it. However, you may not really understand what's going on so let's see what we can do to lists.