Py3 is for all practical purposes a language fork of Py2. So it doesn't really make sense to talk of a "migration". If Py2 becomes unworkable somehow then people will rewrite stuff. Some of it might even be in Py3.
Considering all the stuff that is written in Py2 I really don't see it being out and out abandoned. That wouldn't really make any sense. With computer languages stuff never goes away.
Considering all the stuff that is written in Py2 I really don't see it being out and out abandoned. That wouldn't really make any sense. With computer languages stuff never goes away.