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


Stuck on code challenge on python basics

Make a new variable, var_two, with "e" at index -2. Remember, negative indexes start at the right side of the iterable.

Can anyone provide the answer and explain it to me? Thank you!

1 Answer

Python has reverse index as well. For example:

string = "ABCDE"
#inde:   0 1 2 3 4 
#string[4] = string[-1]
#string[3] = string[-2]
#and so on...

It is to remember that forward index starts from 0 whereas backward index starts with -1.

Now lets talk about the question/task

we need variable that has 'e' at index -2.

var_two = "ef"
var_two = "abcef"

are both examples that has 'e' at index -2

Hope this helps.