Larry> Well, for now I assume it really truly genuinely isn't going in 3.5.0.

This is an unfortunate outcome.

Larry> I suppose we can debate about 3.4.x and 3.5.1 later

It is even more unfortunate that the question of whether this regression is a bug or not is up for debate again.

Victor> The code will be new, I'm not condifent enough to push it immedialty into python 3.5.

I don't understand why any new code is needed to fix a regression.  All you need to do is to revert a few chunks of 1e9cc1a03365 where the regression was introduced.