No actually phasing out of Python 2 has already begun. Several libs today are Python 3 only. Many, many more are not going to pay the cost of supporting Python

No actually phasing out of Python 2 has already begun. Several libs today are Python 3 only. Many, many more are not going to pay the cost of supporting Python2 and drop it in next few years. Unless you are retiring next couple years or live with head in sand, any new code you write should either by python2-3 compatible (it's not hard at all, do it all day every day) or Python 3 only.