How to Append a List in Python. Appending a list means adding new items to an existing list. To add an item to a list, we use the append() function, which adds the item to the end of the list. Here is ...

Python has several ways you can add or remove items from a list: .append() inserts an item at the end of the list. For example, list_of_ints.append(4) would turn list_of_ints into the list [1,2,3,4] .