Chetan wrote: >>> I am joining after some network downtime here, so I seem to have missed what >>> the real issue here is. At the risk of being completely irrelevant to the >>> discussion here, I think it doesn't seem to be just about something or >>> nothing - is None something or nothing? It seems to be neither: >> >> If is, of course, nothing. You may have misunderstood the semantics of the >> "and" and "or" operators. > > I have not. I just posted another message on the subject. All I am trying to > point out is that the "nothingness" evaluation does not occur at the level of > expressions. It is only when the expression is needed to make decisions about > control flow that this comes into picture.
This is not correct. "and" and "or" involve truth (or "somethingness") evaluation, as you can see from this example: Python 2.5 (r25:51908, Sep 22 2006, 10:45:03) >>> class A: ... def __nonzero__(self): ... print "nonzero" ... return True ... >>> A() and 1 nonzero 1 >>> Georg -- http://mail.python.org/mailman/listinfo/python-list
