[Python-ideas] Fwd: Why do equality tests between OrderedDict keys/values views behave not as expected?

[Alexandre Figura]

If we put technical considerations aside, maybe we should just ask to
ourselves what behavior do we expect when doing equality tests between
ordered dictionaries. As a reminder:

>>> xy = OrderedDict([('x', None), ('y', None)])
>>> yx = OrderedDict([('y', None), ('x', None)])
>>> xy == yx
False
>>> xy.items() == yx.items()
True
>>> xy.keys() == yx.keys()
True
>>> xy.values() == yx.values()
False

So, it appears that:
1. equality tests between odict_values use objects identity and not
equality,
2. equality tests between odict_keys do not respect order.

If it is not technically possible to change the current implementation,
maybe all we can do is just add a warning about current behavior in the
documentation?

On Mon, Jan 11, 2016 at 4:17 AM, Guido van Rossum <guido at python.org> wrote:

> Seems like we dropped the ball... Is there any action item here?
>
> --
> --Guido van Rossum (python.org/~guido)
>
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