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Python Python Collections (Retired) Slices Slice Functions

gibran erlangga
gibran erlangga
5,539 Points

make odd index in iterable question

Need a little help here guys.

I'm trying to solve this problem, but I'm stuck with this.

Any help will be highly appreciated. Thanks!

def first_4(iterab):
    return iterab[:4]
def odds(iterab):
    a = iterab%2
    if a != 0:
        return odds

1 Answer

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi gibran erlangga! You're doing great and I can see you've given this some thought. But before I show you how I did it, let's take a moment and look at some things in your code first. Your odds function is trying to return itself. Also your variable a is not looking at the index of a place in your iterab variable. It's looking at the entire iterable. That being said, here's what you need:

def odds(iterab):
    return iterab[1::2]

This will start at the first index in our iterable. Remember the iterable has a 0 index, but we don't want that one. Then it will go down to the end of the iterable by steps of 2. So every other one :smiley: Hope this helps! :sparkles: