Brett Cannon recently published an updated version of the Python 3
migration guide: https://docs.python.org/3/howto/pyporting.html
One addition I found particularly noteworthy is the "pylint --py3k"
mode, which is designed to allow a project to keep their own code
"Python 3 ready", even if their dependencies aren't available in
Python 3 yet.
Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia