On Mar 20, 11:04 pm, David Harvey <[EMAIL PROTECTED]> wrote:
> On Mar 21, 2007, at 1:37 AM, Robert Bradshaw wrote:
>
> > One could also force all keys of a
> > hashtable to live in a given ring.
>
> I don't think you'd want to do that. First, it wouldn't even solve
> the problem (e.g. because of the precision issues you raised before
> -- you can have two elements of the same ring with different
> precision and hence presumably different hashes, which still compare
> equal). Second, I can't even see technically how you would do that
> without modifying python in some horrible way.
Are RealField(100) and RealField(200) the same ring? To me, they
aren't, but there is a canonical coercion in one direction. And you
can expect __call__ to map between both.
Is that right?
Nick
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