[Zope-dev] improving the utility and adapter lookup APIs

Gary Poster gary.poster at gmail.com
Wed Nov 25 12:03:03 EST 2009

On Nov 25, 2009, at 11:54 AM, Chris McDonough wrote:

> Gary Poster wrote:
>> FWIW, I'm saying that utilities and adapters are different.  I share your/Martijn's/other people's general thoughts about merging adapters and multiadapters in the interface __call__ syntax.
> There might should be more obvious APIs for just *retrieving* an adapter based on a set of interfaces; it's useful to be able to retrieve an adapter without invoking it.  Currently this is possible via registry.adapters.loookup, which is fine.
> And I know it's heresy, but sometimes I register something as an "adapter" that is not callable with the number of arguments I'm adapting it with.  Sometimes its convenient to register something that gets adapted using a number of arguments that doesn't match the adaptation arguments.
> If some set of ZCA APIs made it the responsibility of the *caller* to invoke the adapter with arguments would go a long way between normalizing the difference between utilities and adapters (because they would essentially then be the same thing).

Yeah, this is one of my goals too.


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