[Python-3000] Discussions with no PEPs (original) (raw)

Barry Warsaw barry at python.org
Tue Mar 13 16:51:47 CET 2007

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On Mar 13, 2007, at 11:06 AM, Phillip J. Eby wrote:

I prefer to think of adaptation as being a way to provide a namespace for generic functions. :)

See http://mail.python.org/pipermail/python-3000/2006-November/ 004717.html for an implementation of this idea. Basically, you define an interface by creating generic functions in the body of an 'Interface' subclass... and the resulting Interface can then be used to adapt any object to it. The 26 lines of code I gave can be used are not specific to any particular generic function implementation, so they could be used with simplegeneric, RuleDispatch, PEAK-Rules, Guido's prototype, or anything else you might come up with.

Interesting, and thanks for the links. I'm not 100% I got it all on
the first reading, but I think I see where you're going. I'm glad to
see my question is just plowing the same ground for the third tiem
(at least :).

One thing is still missing though, and that's the documentation
aspects of something like zope.interfaces. You could say that
generics.interfaces could just use docstrings, which is fine for
methods, but how would you document attributes in a discoverable way?

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