On 4 December 2013 18:19, Andrew Barnert <abarnert@yahoo.com> wrote:
I don't understand what you mean here. ABCs can check methods. They do so at runtime. You're free to define or not define any protocol you want.
What you have to add is checking the argspecs of the methods rather than just their names. That's a great idea, but it's a much better idea as an addition to what's already there than as a complete parallel API to very similar functionality. And if this were added to the stdlib, I'm pretty sure it would be a modification/extension of the abc module, not a competing and similar but not identical module.
It should also be based on the rich function inspect.signature API (introduced in http://www.python.org/dev/peps/pep-0362/), not on the older low level interfaces (the function signature API has been backported to Python 2.x as the funcsigs module on PyPI). Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia