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

Posted by Andrew Mlamba
Andrew Mlamba
15,642 Points

Slice Functions

Getting confused by this statement 'return the first four and last four items as a single value'

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

def first_and_last_4(iterable):
    iterable[:4]
    iterable[6:]
    return iterable[:4] + iterable[6:]
Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

:mailbox_with_mail: I got your message.

It looks like Phillip already took care of you. Happy holidays to you both.

Andrew Mlamba
Andrew Mlamba
15,642 Points

Thank you! Happy coding and holidays to you too.

2 Answers

Philip Gales
Philip Gales
15,193 Points

Watch the previous video about slicing again and see how he uses a negative 2 at 2:25.

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

def first_and_last_4(iterable):
    return iterable[:4] + iterable[-4:]
Lazarus Mbofana
Lazarus Mbofana
10,941 Points
Lazarus Mbofana
Lazarus Mbofana
10,941 Points

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

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