Most libraries support Python 3 (http://py3readiness.org/ http://py3readiness.org/). 3.4 added asyncio, 3.3 added the 'yield from'. Python 3 has a saner print s

Most libraries support Python 3 (http://py3readiness.org/ http://py3readiness.org/). 3.4 added asyncio, 3.3 added the 'yield from'. Python 3 has a saner print statement, type annotations. I guess that it isn't that much, but I moved mostly due to the fact that a) the libraries I need support python3 anyway b) the stuff I write might need 'yield from' c) what if Python 3.x adds some awesome feature that you'll need, and by that time, you're stuck with a ton of code you need to convert?