Comment 21 for bug 1783519

This issue is seen in queens-5.0-176

/usr/bin/opencontrail-vrouter-netns create source-nat b2e77959-1c62-4e1d-9952-37895746cd89 d9ebaa1e-a7a0-4f92-9f3f-750460c56534 5bce3098-5d2d-4899-879a-1fbad12a0b8a --vmi-left-ip 100.64.0.4/29 --vmi-right-ip 10.204.220.203/29 --vmi-left-mac 02:dd:61:60:b8:54 --vmi-right-mac 02:f4:02:73:ec:e9 --gw-ip 100.64.0.6

Traceback (most recent call last):
  File "/usr/bin/opencontrail-vrouter-netns", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2927, in <module>
    @_call_aside
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2913, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 635, in _build_master
    ws.require(__requires__)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 943, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 829, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'enum-compat' distribution was not found and is required by eventlet