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

what do you mean by single item?

i dont understand the requirment of code. can you give me sample input and its output

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

def first_and_last_4(iterable2):
    return(list(iterable2[0:4]+iterable2[-1:-5:-1]))

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 67,989 Points

"return the first four and last four items as a single value." means, return the result as a single entity. A string in yields a string and a list in yields a list.

>>> print(first_and_last_4("abcdefghijklmnopqrstuvwxyz"))
"abcdwxyz"

>>> print(first_and_last_4([1,2,3,4,5,6,7,8,9,10,11,12]))
[1, 2, 3, 4, 9, 10, 11, 12]

Post back if you need more help. Good luck!!!