[Python-Dev] Small any/all enhancement

[Bob Ippolito]

On Dec 27, 2005, at 5:48 PM, Valentino Volonghi aka Dialtone wrote:

> On Tue, Dec 27, 2005 at 01:50:37PM -0800, Alex Martelli wrote:
>
> I'll answer here for all the people who kindly answered.
>
>> Why would that be better than
>> any(o.some_attribute for o in some_objects)
>> ?
>
> I think it's because lately I've been using common lisp a lot and  
> the approach
> with the test function is pretty common there.
>
> Of course I already knew all the alternatives using map and the  
> generator
> expression, but I felt like mine was clearer for a reader, this is  
> probably
> true but not enough to justify the change.

I think that generator/list expressions are more common practice than  
attrgetter/itemgetter, so I'm not even sure it's clearer.

I don't see the harm in a "key" argument like sorted has, but without  
a key argument it could be extended to take more arguments like max/ 
min do for convenience.  e.g. any(a, b, c) instead of any((a, b, c)).

-bob