Walrus one-liner clear solution for Split List by tom-tom - python coding challenges

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Walrus one-liner solution in Clear category for Split List by tom-tom

def split_list(items: list) -> list:
    return [items[:(split_index := (len(items) + 1) // 2)], items[split_index:]]

Jan. 4, 2020

Comments:

oduvan on Jan. 5, 2020, 12:45 p.m.
+5 for ":=" ))

dsibi on April 13, 2020, 2:26 p.m.
What does it mean?

tom-tom on April 13, 2020, 7:41 p.m.
Assignment expression, aka <a href="https://www.python.org/dev/peps/pep-0572/">the walrus operator</a>

hao.daniel on Jan. 26, 2020, 12:28 p.m.
Not knowing here already support 3.8!

plepleple on April 9, 2020, 8:47 a.m.
same, but before 3.8: <pre class='brush: python'>return [items[:(len(items) + 1 // 2)], items[(len(items) + 1 // 2):]] </pre>

RezaCoder on April 9, 2020, 9:03 a.m.
i did this actually, but not linear!

tom-tom on April 9, 2020, 4:03 p.m.
I know. But it will not be a "Walrus one-liner" ;)

Spiritusvini on Nov. 4, 2020, 7:33 p.m.
The walrus operator is cool! But there is a bit shorter: <pre class='brush: python'>return [[items.pop(0) for i in range((len(items)+1)//2)], items] </pre>

tom-tom on Nov. 5, 2020, 5:29 p.m.
Well, interesting solution, right for the Creative category. But: - it will make 500 intermediate lists for 1000-item input list - it changes input list (may be OK) Good job!

Spiritusvini on Nov. 5, 2020, 6:52 p.m.
Thank you very much for your comment. I'm just learning and it's important for me to get comments. Even if they are flatter me.

Ken_w on Jan. 28, 2021, 8:27 a.m.
Vote for Educational:)

a276397873 on July 8, 2021, 4:01 a.m.
very clever for len(items)+1

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