Comment 2 for bug 1414708

To recreate with the master branch, simply comment out or remove the libvirt-python entry from test-requirements.txt and then:

tox -r -e py27 -- nova.tests.unit.virt.libvirt.test_driver

I think we should just mock out host.Host.has_min_version to always return True for the LibvirtConnTestCase since we should assume any code we're unit testing should be available on the latest libvirt available from a/the distro we're running integration tests against.