Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics (2015) Python Data Types List cleanup

Alex Figueroa
Alex Figueroa
2,148 Points

How to delete an item of a list

I'm going back to my notes and looked online it specifically says to remove 8 from my list. I then use del messy[8] which is obvious however I get an index error. How could this be?

lists.py
messy = [5, 2, 8, 1, 3]
del messy[8]

1 Answer

Wade Williams
Wade Williams
24,476 Points

When you delete using del you need to provide the index of the item you want to delete and not the value. You're getting an index error because you're trying to delete the item at index 8 and there's only 5 items in the list.

To delete the number 8, you would delete the item at index number 2

messy = [5, 2, 8, 1, 3]
del messy[2]