[Python-Dev] Re: PEP 322: Reverse Iteration (original) (raw)

Jeremy Fincher fincher.8 at osu.edu
Wed Nov 5 17:00:31 EST 2003

On Wednesday 05 November 2003 10:56 am, Alex Martelli wrote:

def reversed(sequence): for x in xrange(len(sequence)-1, -1, -1): yield sequence[x]

no reversed, no complications, "no nuttin'". Putting that in the current 2.4 pre-alpha will let us start getting some experience with it and see if in the future we want to add refinements (always easier to add than to remove...:-) -- either to reverse or to other iterator-returning calls (e.g. reverse= optional arguments just like in the sort method of lists).

It seems like a perfect candidate for that "tools" hierarchy you proposed before. As a builtin, I'd be surprised if it saw significant use.

Jeremy

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