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Python Python Collections (Retired) Slices Slice Functions

Oti Oritsejafor
Oti Oritsejafor
3,281 Points

Make a function name first_and_last_4 that accepts an iterable and returns the first 4 and last 4 items in the iterable.

I'm not sure what's wrong

slices.py
def first_4(item):
    return item[:4]
def odds(num):
    return num[1::2]
def first_and_last(num):
    return num[:4] + num[len(num)-4:len(num)]

2 Answers

John Lindsey
John Lindsey
15,641 Points

You're missing "_4" in the name of your function.

def first_and_last_4(num):
Oti Oritsejafor
Oti Oritsejafor
3,281 Points

Thank you! I can't believe I didn't see that

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

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

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