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

Nicolae Laurentiu
Nicolae Laurentiu
1,538 Points
Posted by Nicolae Laurentiu
Nicolae Laurentiu
1,538 Points

Why it doesn't work?

Not sure why it doesn't work

slices.py 
def first_4(iterable):
    return iterable[:4]

def first_and_last_4(iterable):
    return first_4(iterable) + iterable[-4:]

def odds(itera):
    return itera[::2]

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

You are very close. The third task ask for the odd indexes: 1, 3, 5, etc. Using [::2] returns the even indexes.

Hint: the slice notation is [start, stop, step]. What might start be set at to get the odd instead of the even indexes?

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