[Python-Dev] Adding any() and all()

Bill Janssen janssen at parc.com
Fri Mar 11 04:40:50 CET 2005

> Over time, I've gotten feedback about these and other itertools recipes.
> No one has objected to the True/False return values in those recipes or
> in Guido's version.  
> Guido's version matches the normal expectation of any/all being a
> predicate.  Also, it avoids the kind of errors/confusion that people
> currently experience with Python's unique implementation of "and" and
> "or".
> Returning the last element is not evil; it's just weird, unexpected, and
> non-obvious.  Resist the urge to get tricky with this one.  

Fine, but then let's keep reduce(), which has this nice property.


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