I'll happily submit python 3.6 to Leap, if the managers allow this :) Also only after bug 1026174 is resolved. Definitely not going for 3.6 into SLE. Also no 3.5 in any released distribution; if we're straying from SLE, let's at least keep with Factory for as long as possible. Also there are some python 3.6 related incompatibilities; vim test suite comes to mind, there might be others (astroid is the one recently discovered).