[Python-Dev] Small any/all enhancement (original) (raw)

Alex Martelli aleaxit at gmail.com
Tue Dec 27 22:50:37 CET 2005

On Dec 27, 2005, at 12:45 PM, Valentino Volonghi aka Dialtone wrote: ...

any(iterable, test=bool) and all(iterable, test=bool) ... any(someobjects, test=operator.attrgetter('someattribute'))

Why would that be better than any(o.some_attribute for o in some_objects) ?

def zerop(x): return x==0

all(someobjects, zerop)

and why would that be better than all(o==0 for o in some_objects) ?

instead of preprocessing the generator with a generator expression before passing it to any/all.

I guess I just don't see the advantage, along any plane, since the
genexp fits so snugly right there inside the any/all's parentheses.
What am I missing?

Alex

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