How to get the last element of a list in Python

Let’s say that you have a Python list with the following 5 foods:

foods = ["pizza", "pasta", "steak", "chicken", "olives"]
Code language: Python (python)

How do we go about getting the last item?

Option 1

It’s actually really easy, you can select the index item by it’s total length minus one.

last_item = foods[len(foods)-1] # "olives"
Code language: Python (python)

Option 2

Python has some really fantastic functionality around making your life easier. One of those such things is the ability to use slices.

You can return an item by it’s index if you know this, or you can return it’s value from the place within a list.

last_item = foods[-1] # "olives
Code language: Python (python)

By stipulating an index of -1, we tell Python to return the last item; we can also return the second last item by using the index -2.

Additional safety checking

As with option2 above, this is a nice and simple way to achieve our objective, but what if the str() or list() object is empty?

List example

alist = [] # Generates an IndexError exception alist[-1] # Return an empty list alist[-1:]
Code language: Python (python)

String example

astr = '' # Generate an IndexError exception astr[-1] # Return an empty string astr[-1:]
Code language: Python (python)
Tags:
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments