I feel like Python 3 is going so fast and doing so much. It's a gain momentum. I see more and more projects that say either we're Python 3 first or Python 3 only. And if people want to backport it, that's fine. The really good news is that basically all important libraries work as well with Python 3 as they do with Python 2 or better. NumPy, Django, Flask, everything you can think of works with Python 3. Even date you till.