missing 'xor' Boolean operator

Steven D'Aprano steven at REMOVE.THIS.cybersource.com.au
Thu Jul 16 04:19:21 EDT 2009


On Thu, 16 Jul 2009 09:43:53 +0200, Hendrik van Rooyen wrote:

> "Hrvoje Niksic" <hniksic at x..s.org> wrote:
> 
> 
>> Note that in Python A or B is in fact not equivalent to not(not A and
>> not B).
> 
> De Morgan would turn in his grave.

No he wouldn't. Python isn't Boolean algebra, and there is no requirement 
to limit Python's operators to the semantics of Boolean algebra.



-- 
Steven



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