Unfortunate exception on dict item assignment (and why aren't slices hashable?)

[Aahz]

In article <mailman.1058757391.658.python-list at python.org>,
Jeff Epler  <jepler at unpythonic.net> wrote:
>
>I don't see what's problematic about letting slices be hashable: they
>don't appear to be mutable, for instance.
>>>> s.start
>0
>>>> s.start = -1
>TypeError: readonly attribute
>... it may merely be an oversight.  Hashing them as
>    hash((s.start,s.stop,s.step))
>might be a reasonable definition.

Makes sense to me.  Feel free to submit a patch to SF.  ;-)
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

This is Python.  We don't care much about theory, except where it intersects 
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