> Fabric is reacting to what the most conservative group or Linux users (sysadmins for RHEL) are asking for.
I'm not familiar with the details, but does this mean that they're resisting patches to support 3.x? Given the existence of a fork it seems likely. It's not-at-all difficult to write a single Python package that works on both 2.7 and 3.x. Especially if you are willing to use `six`.
I'll admit that it's a little harder to stay compatible with earlier-than-2.7, though.