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

sarvienn thevendran
sarvienn thevendran
734 Points
Posted by sarvienn thevendran
sarvienn thevendran
734 Points

first and last 4 function

i've tried this on a normal code editor it seems to work but the treehouse editor doesnt accept this as an answer. anyone?

slices.py 
def first_4(it):
    it = it[:4]
    return it 

def first_and_last_4(it):
    return str(it[:4]) + str(it[-4:])

1 Answer

John Lack-Wilson
John Lack-Wilson
8,181 Points
John Lack-Wilson
John Lack-Wilson
8,181 Points

Hi Sarvienn, it's because you're returning them as a string value. Whereas the function should be able to return it as a list or a string or anything other type of iterable it passes to it.

So the return statement on your first_and_last_4 function should be:

return it[:4] + it[-4:]