This bug was fixed in the package virtualbox - 5.1.4-dfsg-3
--------------- virtualbox (5.1.4-dfsg-3) unstable; urgency=low
* Revert to Python2, building with Python3 seems still not supported even if at runtime it might work.
-- Gianfranco Costamagna <email address hidden> Thu, 08 Sep 2016 11:39:40 +0200
This bug was fixed in the package virtualbox - 5.1.4-dfsg-3
---------------
virtualbox (5.1.4-dfsg-3) unstable; urgency=low
* Revert to Python2, building with Python3 seems still not supported
even if at runtime it might work.
-- Gianfranco Costamagna <email address hidden> Thu, 08 Sep 2016 11:39:40 +0200