penjee . com and non-pythonic code

[wavic]

Warning: using a comprehension for the side effects should only be attempted by trained professionals.

numbers = [12, 37, 5, 42, 8, 3]
even,odd=[],[]
_=[[even,odd][i%2].append(i) for i in numbers]

I am totally lost here.   What did you do? 

@buran, thank you for this. I was thinking that list.next() is next element from the list but it is next index. And it's reindexing all when I change the list.

[zivoni]

I am totally lost here.   What did you do? 

Ofnuts uses n % 2 (0 or 1) to select either odd or even list to append number. Comprehension is used to iterate over numbers while external variables - even and odd lists - are modified. Comprehension's result is unimportant and discarded (list of None's).

[nilamo]

Warning: using a comprehension for the side effects should only be attempted by trained professionals.

numbers = [12, 37, 5, 42, 8, 3]
even,odd=[],[]
_=[[even,odd][i%2].append(i) for i in numbers]

 *vomit*

[ichabod801]

Oh, yeah?

def even_odd(n, even = [], odd = []):
    [even, odd][n % 2].append(n)
list(map(even_odd, [12, 37, 5 42, 8, 3]))
even, odd = even_odd.__defaults__

[Ofnuts]

Oh, yeah?

def even_odd(n, even = [], odd = []):
    [even, odd][n % 2].append(n)
list(map(even_odd, [12, 37, 5 42, 8, 3]))
even, odd = even_odd.__defaults__

You can't run it several times, because the data is accumulated in the two lists that are used as default values.

[ichabod801]

You can't run it several times, because the data is accumulated in the two lists that are used as default values.

That wasn't in the requirements. If you want new features you'll have to extend the contract.