I think it's fine to remove 3-arg pow() from the ABC; implementations are of course free to provide it. Raymond, why don't you cook up a patch? It should patch both the PEP and numbers.py. On Wed, Jun 4, 2008 at 8:44 PM, Mark Dickinson <dickinsm at gmail.com> wrote: > On Sun, Jun 1, 2008 at 2:15 AM, Raymond Hettinger <python at rcn.com> wrote: >> >> Proposal >> -------- >> Remove non-essential abstract methods like __index__, three argument >> __pow__, >> __lshift__, __rlshift__, __rshift__, __rrshift__, __and__, __rand__, >> __xor__, >> __rxor__, __or__, __ror__, and __invert__, numerator, and denominator. > > +1 from me. > I'd support removing all these, minus the exceptions already pointed out > (__index__, numerator, denominator). As a (so far incomplete) effort > to speed up the Decimal type I recently implemented a decimal-based > integer type; this type would seem a natural candidate to inherit > from Integral, but the logical and shift operators above make less sense > for this type. > The other odd man out here is three-argument pow; this *is* a > method that makes sense for integers without reference to the > way they're stored. So maybe this should stay. (Though I've > occasionally wondered why three-argument pow is part of the > core language, rather than being in the standard library.) > Mark > > _______________________________________________ > Python-Dev mailing list > Python-Dev at python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/guido%40python.org > > -- --Guido van Rossum (home page: http://www.python.org/~guido/)
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