Fix TypeError for six.text_type
Fix TypeError for six.text_type

Change-Id: Ib0d668a6ddadb0fec60c964dc5e1e1bd83b74be4
Closes-Bug: #1408529

venusource/python-neutronclient,huntxu/python-neutronclient,huntxu/python-neutronclient,cryptickp/python-neutronclient,roaet/python-neutronclient,Stavitsky/python-neutronclient,cryptickp/python-neutronclient,Juniper/python-neutronclient,Juniper/python-neutronclient,johnpbatty/python-neutronclient,eayunstack/python-neutronclient,openstack/python-neutronclient,mangelajo/python-neutronclient,venusource/python-neutronclient,Stavitsky/python-neutronclient,noironetworks/python-neutronclient,roaet/python-neutronclient,cernops/python-neutronclient,mangelajo/python-neutronclient,noironetworks/python-neutronclient,rackerlabs/rackspace-python-neutronclient,openstack/python-neutronclient,NeCTAR-RC/python-neutronclient,cernops/python-neutronclient,NeCTAR-RC/python-neutronclient,eayunstack/python-neutronclient,johnpbatty/python-neutronclient,rackerlabs/rackspace-python-neutronclient