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

Abdullah Jassim
Abdullah Jassim
4,551 Points
Posted by Abdullah Jassim
Abdullah Jassim
4,551 Points

Ive gone through previous solutions but why doesnt .extend work? Anything else wrong with my code?

def first_4(iterable):
    iter_list = list(iterable)
    return iter_list[:4]

def last_4(iterable):
    iter_list2 = list(iterable)
    return iter_list2[-4:]

def first_and_last_4(iterable):
    return iter_list.extend(iter_list2)
slices.py 
def first_4(iterable):
    iter_list = list(iterable)
    return iter_list[:4]

def last_4(iterable):
    iter_list2 = list(iterable)
    return iter_list2[-4:]

def first_and_last_4(iterable):
    return iter_list.extend(iter_list2)

1 Answer

Alexander Davison
Alexander Davison
65,456 Points
Alexander Davison
Alexander Davison
65,456 Points

Within the first_and_last_4 function, it does not have access to neither iter_list nor iter_list2.