On 20/05/2010 17:02, geremy condra wrote:
On Wed, May 19, 2010 at 1:56 AM, Gustavo Narea<m...@gustavonarea.net> wrote:
Hello, Oleg.
class UnorderedList(list):
def __eq__(self, other):
if not isinstance(other, UnorderedList):
return False
return sorted(self) == sorted(other)
def __ne__(self, other):
return not self.__eq__(other)
Do you need more than that?
Oleg.
That's what I had in mind.
I think it'd be useful enough to go in the standard library. Now that
there's a sample implementation, should I still try to demonstrate why I
believe it's worth adding to the stdlib and get support?
Cheers,
- Gustavo.
I'm generally in favor of adding more data structures to Python,
but I'm at best -0 on this. Besides being trivial to code and
questionably useful, a much better implementation could be
written using heap.
-1 from me, a trivial implementation of an uncommon use case. At this
point the discussion belongs on python-ideas anyway.
(The trouble with sorted is how it breaks with un-orderable types. There
are at least two places now in the py3k standard library that have
techniques for comparing sequences of heterogenous types - both
prettyprint and unittest I believe. Perhaps a standard recipe for
comparing or sorting such containers *does* belong somewhere more obvious.)
All the best,
Michael
Maybe with a better implementation I would go +0, but I'm
hard pressed to see a case where this would be needed and
could not be trivially written.
Geremy Condra
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