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

Leo Marco Corpuz
Leo Marco Corpuz
18,975 Points

Returning two sets of numbers from a slice method

How do you use the slice method when you're trying to get more than one set of numbers from a list?

slices.py
def first_4(numberSet):
    return numberSet[0:4]
def first_and_last4(numberSet):
    return numberSet[[0:4],[-4:0:-1]]

1 Answer

You can just add them together. BTW, you can select the first four with [:4] and last four with [-4:].

Set is a special type of collection; I would just call the variable numbers, or nums.

And in Python variable names use snake case, not camel case. https://www.python.org/dev/peps/pep-0008/#naming-conventions

def first_and_last4(nums):
    return nums[:4] + nums[-4:]