Reading a random element from a set

[Peter Otten]

ast wrote:

> Hello
> 
> random.choice on a set doesn't work because sets are
> not indexable
> 
> so I found nothing better than taking an element and
> puting it back
> 
> a = {5, 7, 8, 3, 0, 8, 1, 15, 16, 34, 765443}
> elt = a.pop()
> a.add(elt)
> 
> any better idea, in a single instruction ?

>>> next(itertools.islice(a, random.randrange(len(a)), None))
0

While this gives you a random element I agree that it's not nice in every 
other aspect.