Paul McGuire wrote: > "Steve Holden" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > <snip> > > >>> [x for x in enumerate(a)] > [(0, 9), (1, 4), (2, 3), (3, 5), (4, 2), (5, 6), (6, 7), (7, 1), (8, 2)] > > > Just curious, Steve, but why do this list comprehension when: > > list(enumerate(a)) > > works just as well? > Dumb stupidity would account for that. Knowing that enumerate(a) was an iterator I simply used the first iterative context that came to mind. List is somewhat more effective.
> In the interests of beating a dead horse into the ground (metaphor-mixing?), > I looked at using map to one-line the OP's request, and found an interesting > inconsistency. > > I tried using map(reversed, list(enumerate(a))), but got back a list of > iterators. To create the list of tuples, I have to call the tuple > constructor on each one, as in: > > map(tuple,map(reversed,list(enumerate(a)))) > > However, sorted returns a list, not a listsortediterator. Why the > difference in these two builtins? > Ask the developers. Beats me ... > I guess you can beat a dead horse into the ground, but you can't make him > drink. > I guess. Thanks for flogging this horse so effectively. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC/Ltd http://www.holdenweb.com Skype: holdenweb http://holdenweb.blogspot.com Recent Ramblings http://del.icio.us/steve.holden -- http://mail.python.org/mailman/listinfo/python-list
