Back posting anything to 2.7 was a mistake. It shouldn’t have happened because it offered a crutch to stand on instead of spurring ports to 3. 3.x has been around for years now. There was no excuse to have started porting an application that would have taken 3 or four years to do, 3 or four years ago. What did everyone think that 3.x python was a fad and not going anywhere?
I think it was an all or nothing thing. If they could have packported everything (the whole point of 2.7 was to be a bridge) then everyone would have moved up like they do for every point release. Only backporting the fun stuff left only the not-fun stuff when migrating your code.
