[Python-3000] Need help completing ABC pep

[Guido van Rossum]

I've started a PEP on Abstract Base Classes (ABCs), PEP 3119:

    http://www.python.org/dev/peps/pep-3119/

While I'm not ready yet to answer tough questions about this compared
to alternative proposals, I *am* ready for feedback on the various
open issues sprinkled throughout the current text, especially
concerning decisions regarding exactly which operations to include in
the various ABCs, and also regarding the level of detail required in
the PEP.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)