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On Sun, Jun 1, 2008 at 2:15 AM, Raymond Hettinger <python@rcn.com> wrote:

Proposal
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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