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Python Python Collections (Retired) Slices Slice Functions

John Schut
John Schut
2,317 Points
Posted by John Schut
John Schut
2,317 Points

Function first_4

My solution is: def first_4(argument): print(argument[:4])

first_4([1,2,3,4,5,6])

But the response is given that a None is returned in stead of [1,2,3,4].

In a seperate Workspace of mine, the same function returns [1,2,3,4]...(?)

What goes wrong?

slices.py 
def first_4(argument):
    print(argument[:4])

first_4([1,2,3,4,5,6])

4 Answers

Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points
Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points

You are doing it right but the code challenge is asking for you to make a function that returns the first 4 instead of printing them. Do it like this:

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

I hope that helps a little bit

John Schut
John Schut
2,317 Points
John Schut
John Schut
2,317 Points

Hi Carlos, thanks!

Sharon Walls
Sharon Walls
9,234 Points
Sharon Walls
Sharon Walls
9,234 Points

Return vs. print gets me all the time. I've learned to read carefully as a result.

Good luck!

John Schut
John Schut
2,317 Points
John Schut
John Schut
2,317 Points

Hi Sharon, thanks! Reading is indead a big challenge.... :-)