tox -egenconfig creates empty file

congress master (ocata)
Note: config file generation works in stable/newton
I am trying to generate the congress.conf.sample configuration file.
http://docs.openstack.org/developer/congress/deployment.html

tox -egenconfig creates a file with only [DEFAULT] and no configuration entries. This happens locally and in my Ocata DevStack VM. I also cloned Congress in a Docker container running Ubuntu 16.04, installed dependencies, cloned master, and tox -egenconfig threw the following traceback:

genconfig runtests: commands[1] | oslo-config-generator --config-file=etc/congress-config-generator.conf
Traceback (most recent call last):
  File "/home/congress/.tox/genconfig/bin/oslo-config-generator", line 11, in <module>
    sys.exit(main())
  File "/home/congress/.tox/genconfig/local/lib/python2.7/site-packages/oslo_config/generator.py", line 526, in main
    generate(conf)
  File "/home/congress/.tox/genconfig/local/lib/python2.7/site-packages/oslo_config/generator.py", line 506, in generate
    groups = _get_groups(_list_opts(conf.namespace))
  File "/home/congress/.tox/genconfig/local/lib/python2.7/site-packages/oslo_config/generator.py", line 430, in _list_opts
    for namespace, loader in loaders
  File "/home/congress/congress/opts.py", line 36, in list_opts
    ('dse', congress.dse2.dse_node._dse_opts)
AttributeError: 'module' object has no attribute '_dse_opts'
ERROR: InvocationError: '/home/congress/.tox/genconfig/bin/oslo-config-generator --config-file=etc/congress-config-generator.conf'
ERROR: genconfig: commands failed

I looked at congress/congress/opts.py line 36
https://github.com/openstack/congress/blob/master/congress/opts.py#L36
and at congress.dse2.dse_node.py -- _dse_opts is clearly defined on line 46
https://github.com/openstack/congress/blob/master/congress/dse2/dse_node.py#L42
The issue is a combo of https://github.com/openstack/congress/blob/master/congress/dse2/dse_node.py#L61 and that _dse_opts become dse_opts.