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 Functional Python Functional Workhorses Map

Please help? This keeps saying wrong.

Please help us solve with two programmers it keeps saying incorrect.

maps.py
backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(x):
    x.reverse()
    return x

1 Answer

Steven Parker
Steven Parker
229,771 Points

This looks like a duplicate of your previous question, see the answer posted there.

As I said in my previous answer, this challenge is to reverse any kind of iterable including strings. And strings don't have a reverse() method, so you can't use it here.

Hint: try using a slice instead, since that works on any kind of iterable.