[Python-Dev] Confusing listreverseiterator Behavior

[Raymond Hettinger]

From: "Armin Ronacher" <armin.ronacher at active-4.com>
>>>> len(ri)
> 4
>>>> ri.next()
> 4
>>>> len(ri)
> 3
> 
> This is the only reverse iterator with that sort of behavior.  

Use the bug tracker please and assign to me.
At one time, some iterators had the ability to know
their own length and that would change as the
iterator got consumed.  Later, it was decided
that iterators should not report length and should
instead report a length hint.  It looks like listreversediterator
got missed when this was changed.


Raymond