I wrote most of the docs, and my default day-to-day python is Python 3, so it&#x27;s really just a matter of forgetting that &quot;Python 3 ready&quot; is something still needs to be mentioned at all. In fact we even have a python 3 <i>only</i> feature at the moment (python-&gt;JS compilation) But yes, just to clarify our CI tests run on python 2.7, 3.4 and 3.5