I just saw this tweet which I actually found a little discouraging. As of March 2017, only 12% of PyPI downloads were initiated by Python3.
As an avid user of Python3 this anti-Python3 attitude continues to baffle me. Hell, even Flask now recommends using Python3. It's been quite a while since I found a Python package that doesn't support Python3 as well and I use Python almost daily.
At the end of this year Django will release version 2 which will only support Python3. Django clearly makes up a large portion of the Python landscape so I wonder if that will turn things around?