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

Posted by simplyb
simplyb
27,883 Points

Im stuck on the slices challenge :(

Hello,

I am stuck on task 2, where it asks for the first and last 4 items in a given iterable, returned as a single value. I have attached my code, as it keeps saying the function does not return the right answer. Any suggestions would be much appreciated :(

slices.py 
def first_4(numbers):
     return numbers[0:4]

def first_and_last_4(numbers2):
    numbers3 = numbers2[0:4] + numbers2[-1:-5:-1]
    numbers3 = ''.join(str(element) for element in numbers3)
    return numbers3

1 Answer

simplyb
simplyb
27,883 Points
simplyb
simplyb
27,883 Points

I have since solved it, I was overthinking. The challenge wanted the last four items in the same order, the piece of code below reverses them: numbers3 = numbers2[0:4] + numbers2[-1:-5:-1]

Solution: numbers3 = numbers2[0:4] + numbers2[-4::]

Thanks anyway.