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

Aahz aahz at pythoncraft.com
Fri Mar 11 06:53:22 CET 2005

On Thu, Mar 10, 2005, Bill Janssen wrote:
>Raymond Hettinger:
>> 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.

Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

"The joy of coding Python should be in seeing short, concise, readable
classes that express a lot of action in a small amount of clear code -- 
not in reams of trivial code that bores the reader to death."  --GvR

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