derivation: sick Python trick of the week

[Greg Ewing (using news.cis.dfn.de)]

has wrote:
> Raised this idea on the PythonMac SIG last week; it died a quick death
> once someone pointed out that boolean operators also perform flow
> control

I do have a plan for handling that. Yes, it'll be non-trivial
(although not too complicated, I hope), and yes, Guido probably
won't like it much, but you never know 'till you try...

-- 
Greg Ewing, Computer Science Dept,
University of Canterbury,	
Christchurch, New Zealand
http://www.cosc.canterbury.ac.nz/~greg