[Python-Dev] PEP 362 Second Revision

Thu Jun 7 22:54:52 CEST 2012

On 2012年06月07日, at 3:54 PM, Terry Reedy wrote:
> On 6/7/2012 10:41 AM, Yury Selivanov wrote:
>> Hello,
>>>> The new revision of PEP 362 has been posted:
>> http://www.python.org/dev/peps/pep-0362/
>>>> Thanks to Brett, Larry, Nick, and everybody else on python-dev
>> for your corrections/suggestions.
>>>> Summary of changes:
>>>> 1. We don't cache signatures in __signature__ attribute implicitly
>>>> 2. signature() function is now more complex, but supports methods,
>> partial objects, classes, callables, and decorated functions
>>>> 3. Signatures are always constructed on demand
>>>> 4. Dropped the deprecation section
>> I like this now. Being more able to get the actual signature of partials and wraps will be a win. If the signature object has a decent __str__/__repr__ method, I would (try to remember) to revise idle tooltips (for whichever version) to check for .__signature__ before inspect'ing.

I think we'll add a 'format' method to the Signature, that will work
like 'inspect.formatargspec'. 'Signature.__str__' will use it with
default parameters/formatters.
I'm not sure how __repr__ should look like. Maybe default repr
(object.__repr__) is good enough.
-
Yury