and next creative solution for Sort Except Zero by veky - python coding challenges

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and next solution in Creative category for Sort Except Zero by veky

def except_zero(L):
    s = iter(sorted(filter(None, L)))
    return [x and next(s) for x in L]

Jan. 11, 2020

Comments:

Sim0000 on Jan. 14, 2020, 9:53 a.m.
I like your AND :-)

veky on Jan. 14, 2020, 11:16 a.m.
It fits perfectly. ;-)

vvm70 on Jan. 6, 2022, 4:33 a.m.
Every your code is for me as a masterpiece. filter(None, list) is new for me. And your and is great!

Klimchick on March 6, 2022, 2:34 p.m.
aaaaa my brain, if someone can explain me what does this and I will glad!!!

veky on March 6, 2022, 4:36 p.m.
You sure you want to know? :-] Warning: you can never get that sense of wonder back. At least until you look at the next solution of mine. :-DD Ok, so `s` iterates through sorted `L`, filtered on truth. That means that every time I execute `next(s)`, I get the next element from `L` in their natural order (as integers), except the zeros (which are false). Now, the semantics of `and` are that it evaluates the right operand only if the left one is true -- that is, in this context, nonzero. Moreover, if the left one is false -- that is, zero -- it will be the value of `and`. So, I go through the elements of `L` (in the comprehension). For each zero there, I put it into the returned list. For each nonzero, I put the next element of sorted list instead. It's like a riffle shuffle, only zeros are left in place, while nonzeros are in-shuffled between them in their sorted order. Got it?

Klimchick on March 6, 2022, 7:14 p.m.
It's exelent and perfect))Thank you so much! You made me understand!

Kosuke_Yanai on April 17, 2022, 6:39 a.m.
great 'and' and filter(None, list)!

StefanPochmann on April 30, 2023, 9:24 a.m.
I did almost the same, just decided to go with `filter(None, sorted(L))` so I don't need to type `iter()` :-)

veky on April 30, 2023, 5:02 p.m.
:-D

Xiao_Yunjie on Nov. 24, 2023, 3:07 a.m.
Bro, do remember the whole python library? o.O

veky on Nov. 24, 2023, 3:13 a.m.
Probably, yes. And I keep it under my pillow (on a Kindle, of course). ;)

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