On Sun, Oct 26, 2014 at 11:09 AM, Mark Lawrence <breamoreboy at yahoo.co.uk> wrote: > Horrible IMHO, it just doesn't fit in my mind set. Still each to their own. Yeah, the comprehension version is way more explicit (though it probably ought to be a set and a set comp, not a tuple and a list comp), and not as good, IMO. But it explains and justifies the original. ChrisA