Most significant libraries and tools work with 3.x by this point. SQLAlchemy, numpy, scipy, cherrypy, WebOb, pymongo (as pymongo3), virtualenv, pip, pygments, j

Most significant libraries and tools work with 3.x by this point. SQLAlchemy, numpy, scipy, cherrypy, WebOb, pymongo (as pymongo3), virtualenv, pip, pygments, jinja2, tox, nose, ... It's too bad that django, zope and werkzeug (flask) aren't there yet. I understand that a lot of people on this site use django and so these discussions are always dominated by people complaining that they can't use Python 3 because their dependencies (django) aren't available. But the Python community is much bigger than django and today most of the rest of the ecosystem is ready and working fine. The parts that aren't, are getting there rapidly.