[Import-SIG] PEP 420: Implicit Namespace Packages

["Martin v. Löwis"]

On 02.05.2012 12:23, Eric V. Smith wrote:
> On 5/2/2012 3:17 AM, "Martin v. Löwis" wrote:
>>> About the only question I have is: Is everyone okay with the changes to
>>> the finders, described in the PEP?
>>
>> It looks good to me. It's a somewhat surprising change, but I can see no
>> flaw in it.
>
> Surprising in that any change to find_module is needed, or surprising
> that it now returns one of {None, loader, str}?
>

Both, actually. I had expected that new API (i.e. a new method of some 
kind) would be necessary, so it has elegance that this is not required.
OTOH, explicit type checking is despised in the OO world, and varying
result types are disliked by Guido van Rossum (not sure whether this
reservation applies to this case as well, or only to cases where the
return type depends on the parameter types).

Regards,
Martin