[Igglyboo]

This is completely not true, on PyPi there are more libraries supporting 3.x than 2.x. The only major 2.x packages that I can think of that haven't been ported are twisted and gevent(?).

http://python3wos.appspot.com/

[Luyt]

And in Python 3.4+, much of the async functionality of Twisted will also be available in the Python standard lib itself (asyncio, Tulip, http://legacy.python.org/dev/peps/pep-3156/).

[tshepang]

You are reading that wrong. Having 3.x support does not imply lacking 2.x support. In fact, I believe all those libraries support both 2.x and 3.x.