Converting a set into list

[Duncan Booth]

Chris Torek <nospam at torek.net> wrote:

>     >>> x = [3, 1, 4, 1, 5, 9, 2, 6]
>     >>> x
>     [3, 1, 4, 1, 5, 9, 2, 6]
>     >>> list(set(x))
>     [1, 2, 3, 4, 5, 6, 9]
>     >>>
> 
> Of course, this trick only works if all the list elements are
> hashable.
> 
> This might not be the best example since the result is sorted
> "by accident", while other list(set(...)) results are not. 

A minor change to your example makes it out of order even for integers:

>>> x = [7, 8, 9, 1, 4, 1]
>>> list(set(x))
[8, 9, 1, 4, 7]

or for that mattter:

>>> list(set([3, 32, 4, 32, 5, 9, 2, 6]))
[32, 2, 3, 4, 5, 6, 9]


-- 
Duncan Booth http://kupuguy.blogspot.com