[Victor Stinner <vstinner@redhat.com>]
I'm not sure that the discussion on python-dev was really efficient (I didn't follow the discussion on python-ideas). It seems like many people said the same thing.
Only hundreds of times ;-)
I'm not sure that arguments of the supporters of the PEP have been heard. Likely lost in the high number of emails...
It's really the PEP's job to lay out the pros and cons - you shouldn't have to read emails at all for that, unless you want to follow the development in real time. I think moving the PEP from python-ideas to python-dev was premature, because even among proponents there wasn't yet consensus that the then-current state of the PEP was sufficiently focused.
The simpler the PEP has gotten, the more I've warmed to it. My current +1 isn't really about the PEP as it stands, but about what I _assume_ Guido will be talking about (plain-name "binding expressions" alone, and not also, e.g., about changing some corner case scope behaviors, but also about tightening the language spec with respect to guaranteeing a specific order-of-operation (OOO) in some currently fuzzy cases - although, to be fair, both scope behaviors and OOO guarantees are issues on their own quite independent of this PEP).
And, frankly, everyone else should be +1 too on whatever it is Guido is privately thinking ;-)