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Python Python Collections (Retired) Slices Slice Functions

David Valles
David Valles
9,367 Points

What is the problem with my solution in the 3 challenge

def first_and_last_4(item): first4 = item[:4] last4 = item[-1:-5:-1] x = (first4+last4).sort() return x

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

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

def first_and_last_4(item):
  first4 = item[:4]
  last4 = item[-1:-5:-1]
  x = (first4+last4).sort()
   return  x

1 Answer

I think your last4 slice should probably use len(item) to get the length of the iterable object that is passed in so it can handle items of different lengths.