[skierscott]

> If python3 adoption is the goal

So the goal should be to have codebases in Python 3.

> python3 should be the input and not the output

How would this accomplish that goal? All the codebases would be in Python 2 then. I bet that removing barriers to run Python 2 code would cause it to stay around longer.

[dec0dedab0de]

All the code bases are already in 2. This would allow someone to write new internal libraries in 3.6, or migrate existing code one at a time, but still have the project as a whole run on a python2.7 until it is ready.