
According to the OpenStack style guide (http://docs.openstack.org/developer/hacking/), for Python 3.x compatibility use "six.add_metaclass" instead of " __metaclass__." Change-Id: Ic7733a22294ecad30d185851d4f550f1386581fc
According to the OpenStack style guide (http://docs.openstack.org/developer/hacking/), for Python 3.x compatibility use "six.add_metaclass" instead of " __metaclass__." Change-Id: Ic7733a22294ecad30d185851d4f550f1386581fc