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

Tim T. Bigelow-Martin
Tim T. Bigelow-Martin
5,744 Points

Slice Functions challange 4 of 4

The hint for this one is very misleading. Am i anywhere close to getting this right?

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

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

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

def reverse_evens(itr):
    lista = itr[::2]

    if len(itr) %2 <= 1:
        lista.pop()
        return lista[::-1]
    else:
        return lista[::-1]

1 Answer

you need to get the iterable even indexes then reverse them

def first_4(iterable):
    return iterable[:4]

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

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

def reverse_evens(iterable):
    return iterable[::2][::-1]