I've checked draft (!) PEP 3003, "Python Language Moratorium", into
SVN. As authors I've listed Jesse, Brett and myself.

On python-ideas the moratorium idea got fairly positive responses
(more positive than I'd expected, in fact) but I'm bracing myself for
fierce discussion here on python-dev. It's important to me that if if
this is accepted it is a "rough consensus" decision (working code we
already have plenty of :-), not something enforced by a vocal minority
or an influential individual such as myself. If there's too much
opposition I'll withdraw the PEP so as not to waste everybody's time
with a fruitless discussion.

The PEP tries to spell out some gray areas but I'm sure there will be
others; that's life. Do note that the PEP proposes to be *retroactive*
back to the 3.1 release, i.e. the "frozen" version of the language is
the state in which it was released as 3.1.

-- 
--Guido van Rossum (python.org/~guido)