On 11-Nov-08, at 4:16 PM, Mark Dickinson wrote:

More generally, what are the guidelines for determining
when it's appropriate to make something a property rather
than a method?

Both are awkward on numeric types in python, necessitating brackets or a space before the dot:

(1).__doc__
1 .__doc__

I'd suggest a third alternative, which is a standalone function in math:

from math import numbits:
numbits(1)

-Mike
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