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

Leo Marco Corpuz
Leo Marco Corpuz
18,975 Points
Posted by 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

ursaminor
ursaminor
11,271 Points
ursaminor
ursaminor
11,271 Points

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:]