[Python-Dev] PEP 362 Third Revision

[Alexandre Zani]

On Wed, Jun 13, 2012 at 8:06 PM, Yury Selivanov <yselivanov at gmail.com> wrote:
> On 2012-06-13, at 10:52 PM, Yury Selivanov wrote:
>> 2. signature() function support all kinds of callables:
>> classes, metaclasses, methods, class- & staticmethods,
>> 'functools.partials', and callable objects.  If a callable
>> object has a '__signature__' attribute it does a deepcopy
>> of it before return.
>
>
> Properly decorated functions are also supported.
>
> -
> Yury
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This is really exciting! A couple questions/points:

Why do we look at __wrapped__ only if the object is a FunctionType?
Why not support __wrapped__ on all callables?

Why special-case functools.partial? Couldn't functools.partial just
set __signature__ itself? Is that because of inspect's dependency on
functools?

Just a thought: Do we want to include the docstring? A function's
docstring is often intimately tied to its signature. (Or at least, a
lot of us try to write docstrings that effectively describe the
function's signature)