Comment 23 for bug 1783519

eventlet of version 0.20.x and 0.21.x requires enum-compat in setup.py.
enum-compat is not available in RedHat repos and in openstack-ocata repos (CentOS)

there are two solutions:

1) patch eventlet of used version 0.20.1 and store it into our tpc repo (remove enum-compat from setup.py or change it to enum34 that is present as a package and present in teh system)

2) use eventlet of version 0.18.2 that works well in Ocata