Sorted Returns List and Reversed Returns Iterator

++imanshu himanshu.garg at gmail.com
Fri Aug 22 07:17:42 CEST 2008


On Aug 22, 8:40 am, John Machin <sjmac... at lexicon.net> wrote:
> On Aug 22, 1:35 pm, John Machin <sjmac... at lexicon.net> wrote:
>
>
>
> > On Aug 22, 12:12 pm, "++imanshu" <himanshu.g... at gmail.com> wrote:
>
> > > Hi,
>
> > >      Is there a reason why two similarly named functions Sorted and
> > > Reversed return different types of data or is it an accident.
>
> > You seem to have an interesting notion of "similarly named".
> > name0[-2:] == name1[-2:], perhaps? The two functions (eventually, in
> > the case of "reversed") return data in the order one would expect from
> > their names.
>
> > >>> x = [1, 3, 5, 2, 4, 6]
> > >>> sorted(x)
> > [1, 2, 3, 4, 5, 6]
> > >>> reversed(x)
>
> > <listreverseiterator object at 0x00AA5550>
>
> > >>> list(reversed(x))
> > [6, 4, 2, 5, 3, 1]-
>
> Sorry; having re-read the message subject:
>
> reversed came later; returning an iterator rather than a list provides
> more flexibility.
>
> Cheers,
> John

I agree. Iterator is more flexible. Together and both might have
returned the same types.

Thanks,
++imanshu



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