[Python-ideas] issubclass(collections.OrderedDict, collections.Sequence)

[Ram Rachum]

You're right, I didn't think of that case. So the best definition I can
come up with is: "The iteration order is defined and meaningful, and not
random." Is this specific enough? I know it's something which isn't
testable programmatically (same as `tuple(x) == tuple(x)` which is
impractical to test.)

On Tue, Oct 7, 2014 at 11:10 PM, Alexander Belopolsky <
alexander.belopolsky at gmail.com> wrote:

>
> On Tue, Oct 7, 2014 at 4:01 PM, Ram Rachum <ram at rachum.com> wrote:
>
>> you asked for the meaning of when something is ordered. Ed answered
>> something and I said I meant exactly what he said, but maybe I should have
>> been more explicit: I meant that it's guaranteed that `tuple(x) ==
>> tuple(x)`.
>
>
> I don't think this is a very useful definition:
>
> >>> x = iter('abc')
> >>> tuple(x) == tuple(x)
> False
> >>> x = set('abc')
> >>> tuple(x) == tuple(x)
> True
>
>
>
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