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Python Functional Python Functional Workhorses Map

Posted by kgoldthorpe
kgoldthorpe
7,802 Points

I'm not sure If I'm just wrong or misunderstanding the question

This code reverses the list and it works in my command line. but maybe I'm not understanding what the question is asking?

maps.py 
backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(iterable):
    return iterable.reverse()

1 Answer

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

iterable.reverse() reverses a list in place but the return value is None. So your function returns None.

I get the same results from the following code:

backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(iterable):
    return iterable[::-1]

print(reverse(backwards))  

backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(iterable):
    iterable.reverse()
    return iterable

print(reverse(backwards))

But only the slice method is accepted by the challenge