[Python-Dev] Supporting functools.singledispatch with classes.

[Ethan Smith]

Okay, if there is no further feedback, I will work on a
singledispatchmethod decorator like partialmethod.

For the future perhaps, would it not be possible to tell that the passed
argument is a descriptor/function and dispatch to the correct
implementation, thus not needing two functions for essentially the same
thing?

It seems more straightforward to make the implementation a bit more complex
to provide a single, simple API to users.

Cheers,

Ethan

On Tue, Dec 26, 2017 at 3:29 PM, Ivan Levkivskyi <levkivskyi at gmail.com>
wrote:

> On 26 December 2017 at 01:41, Nick Coghlan <ncoghlan at gmail.com> wrote:
>
>> On 25 December 2017 at 12:32, Ethan Smith <ethan at ethanhs.me> wrote:
>> > So at the moment, I don't think it is possible to implement
>> singledispatch
>> > on classmethod or staticmethod decorated functions.
>>
>> I've posted this to the PR, but adding it here as well: I think this
>> is a situation very similar to the case with functools.partialmethod,
>> where you're going to need to write a separate
>> functools.singledispatchmethod class that's aware of the descriptor
>> protocol, rather than trying to add the functionality directly to
>> functools.singledispatch.
>>
>
> I agree with Nick here. Adding a separate decorator looks like the right
> approach,
> especially taking into account the precedent of @partialmethod.
>
> --
> Ivan
>
>
>
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