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Python Python Collections (2016, retired 2019) Slices Slice Functions

Posted by Itai Shin
Itai Shin
9,928 Points

ODD index literable

Hi.

In the course "Python Collections" there is a question about Slices.

Create a new function named odds that returns every item with an odd index in a provided iterable. For example, it would return the items at index 1, 3, and so on. Write a function that returns new literable, with only the odd indexes.

Here is my answer

def odds(iterable):
    reverse_list = iterable[::-2]
    return new_list[::-1]

The website says that its wrong. Is there anybody that knows what is wrong with my answer?

Thanks :-)

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

You’re thinking in the correct direction. First, the function name should be reverse_evens. And new_list should be reverse_list.

Your code reverses the evens from the back of the list. Then it reverses this again.

Instead, get the evens in regular order, then reverse that result.

Post back if you need more help. Good luck!!!