[Python-ideas] Reversable

[cool-RR]

On Thu, Apr 29, 2010 at 1:01 PM, Paul Moore <p.f.moore at gmail.com> wrote:

> On 29 April 2010 02:15, cool-RR <cool-rr at cool-rr.com> wrote:
> > Though this leads me to another thought: Maybe we should have an argument
> to
> > `reversed` which will instruct it to make a list out of the iterable and
> > then return the `reversed` of that list, but only when the original
> iterable
> > is not naturally reversible. This way you could be sure that `reversed`
> will
> > work on any iterable. (When you don't care much about performance, of
> > course.)
>
> def reversed_anything(a):
>    try:
>        return reversed(a)
>    except TypeError:
>        return reversed(list(a))
>
> Paul
>

Yes, I'm aware the implementation is simple. I was not asking for an
implementation. I was just raising the idea that it should be part of the
builtin `reversed`. But since there are no +1s, I guess not.

Ram.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-ideas/attachments/20100429/3bc8f697/attachment.html>