On Jul 12, 8:37 pm, Alan Isaac <[EMAIL PROTECTED]> wrote: > I do not like that bool(False-True) is True.
I've never seen the "A-B" used to represent "A and not B", nor have I seen any other operator used for that purpose in boolean algebra, though my experience is limited. Where have you seen it used? What's wrong with 'and', 'or', and 'not'? I think that redefining *, +, and - to return booleans would only encourage programmers to use them as shortcuts for standard boolean operations--I'd hate to see code like this: >>> if user.registered * (user.age > 13) - user.banned: ... I don't mind that arithmatic operations are _possible_ with bools, but I would strongly prefer to see the boolean keywords used for operations on booleans. -Miles -- http://mail.python.org/mailman/listinfo/python-list
