Understand Immutability with Python Tuples
Tuples are immutable so there is no way to add or replace items in tuples. There is a way to get around this by adding two tuples into one.
Ceora Ford: [0:01] Working from my_tuple, we're going to try to add another item to the end of this tuple. We'll do this by using the append() method. I'm going to append a list of my favorite foods which includes pizza, lasagna, and cookies.
[0:30] As you can see, we get an error. This is because tuples are immutable which means that after they've been created, we cannot change or alter them. There is a way to get around this though if you really want to add a new item into your tuple.
[0:44] You can do this by adding two tuples together into one. We'll create a variable called my_tuple2 and we'll combine the original my_tuple with a one-item tuple that contains the list of my favorite foods. We'll remember also to add the ending comma since this is a one-item tuple.
[1:09] Now when we type my_tuple2 into the [inaudible] , you can see it returns back to us a combination of the original my_tuple and the list of my favorite foods.