Sept. 23, 2010
4:54 p.m.
On Thu, Sep 23, 2010 at 9:37 AM, Tarek Ziadé <ziade.tarek@gmail.com> wrote:
The problem is that the implemented method could have a different list of arguments and will eventually fail.
A slightly different argument list is okay if it is more permissive. For example, the collections.Sequence ABC defines a count method with one parameter. However, the list implementation's count method takes one mandatory parameter plus two optional parameters. I'm not sure how easy it would be to detect a valid but more general signature. You might be interested in the related Issue 9731 ("Add ABCMeta.has_methods and tests that use it"). -- Daniel Stutzbach, Ph.D. President, Stutzbach Enterprises, LLC <http://stutzbachenterprises.com/>