Does Python need a semantics for and/or over generators ? was : 'xor' operator?

[Grant Edwards]

In article <3CBABA71.3040909 at geneva-link.ch>, Boris Borcic wrote:

> For the shortcut semantics, we'd like to have :
>      a xor b
> 
> behave exactly like :
>      (not b and a) or (not a and b)

I don't understand how that's a shortcut (assuming that means
the same thing as short-circuit).  You have to evaluate both
operands of an xor operator.  There is no possibly way to
short-circuit the expression so that only one is evaluated.

-- 
Grant Edwards                   grante             Yow!  I'm protected by
                                  at               a ROLL-ON I rented from
                               visi.com            AVIS...