dicts + amb

[Marc 'BlackJack' Rintsch]

In <1160601017.272078.63240 at h48g2000cwc.googlegroups.com>, bearophileHUGS
wrote:

> I have implemented yet another Odict class:
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/498195
> It's very slow, but it is O(1) for get, set and del too.
> 
> I have added ritervalues(), rkeys(), etc methods because I presume I
> can't use the reversed(). So can an __riter__ hook be generally useful?
> (I have seen few comments about it in the discussion regarding PEP
> 322).

I don't know if this is documented somewhere but the `reversed()` function
looks for a `__reversed__()` method that returns an iterator.

Ciao,
	Marc 'BlackJack' Rintsch