Re: Inconsistent viewkeys behaviour

From	Gregory Ewing <greg.ewing@canterbury.ac.nz>
Newsgroups	comp.lang.python
Subject	Re: Inconsistent viewkeys behaviour
Date	2014-04-29 12:08 +1200
Message-ID	<bs88shF6fvqU1@mid.individual.net> (permalink)
References	<CAN1F8qWEO6N6MOXpFUM0rNa9nNAjF79WOD+De9n1pFZpibDF-w@mail.gmail.com> <mailman.9546.1398680984.18130.python-list@python.org>

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Terry Reedy wrote:
> The left operand determines the result. The manual specifies that < and 
>  > do not have to be consistent. But I suspect that when 3.x dict.keys() 
> was backported to 2.7.0, no one thought to update set, whereas the 
> backported key view code already had the comparison.

The question is why set() is raising an exception
instead of returning NotImplemented to give the
other operand a chance.

-- 
Greg

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Re: Inconsistent viewkeys behaviour Terry Reedy <tjreedy@udel.edu> - 2014-04-28 06:28 -0400
  Re: Inconsistent viewkeys behaviour Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-04-29 12:08 +1200

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