[Python-Dev] inspect() and dir()

[Nick Coghlan]

On 10 Oct 2013 08:07, "Ethan Furman" <ethan at stoneleaf.us> wrote:
>
> On 10/09/2013 02:46 PM, Nick Coghlan wrote:
>
>> On 10 Oct 2013 03:39, "Ethan Furman" wrote:
>>>
>>>
>>> My apologies.  I am actually talking about the module.  I meant
>>>  inspect.get_members() and inspect.classify_class_attrs(), which,
>>>  as near as I can tell, are the only two functions in inspect that
>>>  attempt to retrieve/look at all of an object's attributes.
>>
>>
>> Those have to depend on __dir__ so classes (especially proxies) can
accurately report *extra* dynamically accessible names.
>
>
> Indeed, my rough idea is to use the results of the new dir() and
combining that with the results of the old dir().  The use case being that
some classes *ahem* Enum *ahem* may report *less* than is actually
available, but introspection should reveal whatever is there even if dir()
is not reporting it.

Not necessarily. For autocompletion, for example, you probably only want
the public stuff. That's why I'm inclined to suggest the existing functions
should continue to only report advertised attributes, with a separate
introspection API that tries harder to find all accessible attributes
(potentially including those from the metaclass). That way users can choose
the one most appropriate to their use case, as well as being able to use
the latter to help test custom dir support.

Cheers,
Nick.

>
> --
> ~Ethan~
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