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

Posted by behar
behar
10,799 Points

Python slices.. Not working

Am i missing something here?

slices.py 
def first_4(itr):
    return itr[0:4]


def first_and_last_4(itr):
    return itr[0:4] + itr[-1:-5:-1]

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

1 Answer

Wesley Trayer
Wesley Trayer
13,812 Points
Wesley Trayer
Wesley Trayer
13,812 Points

It looks like your problem is in the function first_and_last_4. You are returning the last four items of the list backward! Instead of returning "16, 17, 18, 19" you return "19, 18, 17, 16".

It would be nice if they had specified that order was important in the challenge goals. :)

behar
behar
10,799 Points

Got it. Ty!