A global package called "managers" would cause a conflict (and this will break in python 3 when we get there ;) )
Should probably be changed to one of;
from __future__ import absolute_import
from .managers import StateMachineManager
from ostinato.statemachine managers import StateMachineManager
I've not checked to see how often this occurs.
The ostinato.statemachine app is due to be completly rewritten. The aimed release for this is 0.8. You can track the tickets and stories for this here: https://www.pivotaltracker.com/projects/417365
Will take into account absolute imports when doing that rewrite :).