conflicting __getitem__ and __iter__ orderings harmful?

[Just]

In article <radsa.24272$xw4.9216 at nwrdny01.gnilink.net>,
 "Raymond Hettinger" <vze4rx4y at verizon.net> wrote:

> > If I implement __getitem__ and __delitem__ by id, but
> > __iter__ ordered by seq, am I committing heinous crimes against
> > python abstractions and conventions?
> 
> The code smells a bit like an impending heinous
> crime against a future maintainer.

I don't agree, as long as you see id's as keys, there's absolutely 
nothing wrong with what the OP proposes. But you're right in pointing 
him towards the dict API...

Just