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

Puffy wuff
Puffy wuff
9,573 Points
Posted by Puffy wuff
Puffy wuff
9,573 Points

Not sure why my code isn't working here. Probably a silly mistake :)

Trying to make a function that returns every item with an odd index in a provided iterable.

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

def first_and_last_4(thing):
    return thing[:4] + thing[-4:]

def odds(thing):
    return thing[-len(thing)::2]

1 Answer

reanimator313
reanimator313
6,005 Points

Your code return the even index, not the odd index.

return thing[-len(thing)+1::2]
# Or simpler

return thing[1::2]
reanimator313
reanimator313
6,005 Points

I'm glad I can help