Alex Martelli wrote:
> On Apr 4, 2006, at 5:29 PM, Guido van Rossum wrote:
> [excellent example, mostly snipped]
>
> Just for when this will be published/blogged (as it deserves to be!),
> tiny nit:
>
>> if hasattr(obj, "__iter__"):
>> return obj.__iter__()
>> raise TypeError("Can't iterate over a %s object" %
>> obj.__class__.__name__)
>
> I think we should check/get __iter__ from obj.__class__, not from obj
> itself (new style classes only take special methods from the type,
> not from the instance). This applies to other occurrences of this
> pattern later, too.
>
>> def register(self, T, A):
>> self.registry[T] = A
>
> Why not accept more than one type (for the same adapter) at one gulp?
>
> def register(self, A, *Ts):
> for T in Ts:
> self.registry[T] = A
Assuming isinstance(obj, tuple_of_types) will still work, the natural
analog here would be:
def register(self, T, A):
if isinstance(T, tuple):
for one_T in T:
self.registry[one_T] = A
else:
self.registry[T] = A
--
Ian Bicking | [EMAIL PROTECTED] | http://blog.ianbicking.org
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