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

[Benji York]

On Thu, Nov 26, 2009 at 9:04 AM, Leonardo Rochael Almeida
<leorochael at gmail.com> wrote:
> On Thu, Nov 26, 2009 at 14:34, Benji York <benji at zope.com> wrote:
>> On Wed, Nov 25, 2009 at 11:17 AM, Matthew Wilkes
>>> I know it's probably a spurious use case, but what if I want to adapt a
>>> tuple?
>>
>> There could be an optional keyword argument to be explicit.
>>
>> This would be a single-adapter lookup:
>>
>> IFoo(from=my_tuple)
>
> You probably already realized it by now, but this is a syntax error
> (remember: "from module import name").

Nope, it hadn't occurred to me.  Some other argument name could be used
instead.

>> While this would be a multi-adapter lookup:
>>
>> IFoo(my_tuple)
>
> To take my stab at this bikeshed painting, and since it doesn't seem
> likely we'd want to break backward compatibility, I think I'd prefer
> the other way around:
>
> IFoo(multi=my_tuple)
>
> and leave the first parameter for single adaptation, although what I'd
> really prefer is multi-adaptation on multiple positional parameter.

I'd rather have the common case (of adapting a non-tuple) be the simpler
form and the exception (adapting a tuple) require more verbiage.
-- 
Benji York