So I had a look at the node provided by Chandan. While debugging it seems to fail loading the identity plugin with the below traceback. Looks like some 'keyring.backends' entrypoints are incorrect. Very difficult to know what has caused this.



WARNING: Failed to import plugin identity.
Traceback (most recent call last):
  File "/usr/bin/openstack", line 6, in <module>
    from openstackclient.shell import main
  File "/usr/lib/python3.6/site-packages/openstackclient/shell.py", line 28, in <module>
    from openstackclient.common import clientmanager
  File "/usr/lib/python3.6/site-packages/openstackclient/common/clientmanager.py", line 183, in <module>
    'openstack.cli.base',
  File "/usr/lib/python3.6/site-packages/openstackclient/common/clientmanager.py", line 149, in get_plugin_modules
    __import__(ep.module_name)
  File "/usr/lib/python3.6/site-packages/openstackclient/identity/client.py", line 18, in <module>
    from keystoneclient.v2_0 import client as identity_client_v2
  File "/usr/lib/python3.6/site-packages/keystoneclient/v2_0/__init__.py", line 1, in <module>
    from keystoneclient.v2_0.client import Client  # noqa
  File "/usr/lib/python3.6/site-packages/keystoneclient/v2_0/client.py", line 21, in <module>
    from keystoneclient import httpclient
  File "<frozen importlib._bootstrap>", line 1020, in _handle_fromlist
  File "/usr/lib/python3.6/site-packages/keystoneclient/__init__.py", line 72, in __getattr__
    return importlib.import_module('keystoneclient.%s' % name)
  File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/usr/lib/python3.6/site-packages/keystoneclient/httpclient.py", line 43, in <module>
    import keyring
  File "/usr/lib/python3.6/site-packages/keyring/__init__.py", line 1, in <module>
    from .core import (
  File "/usr/lib/python3.6/site-packages/keyring/core.py", line 192, in <module>
    init_backend()
  File "/usr/lib/python3.6/site-packages/keyring/core.py", line 96, in init_backend
    filter(limit, backend.get_all_keyring()),
  File "/usr/lib/python3.6/site-packages/keyring/util/__init__.py", line 22, in wrapper
    func.always_returns = func(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/keyring/backend.py", line 216, in get_all_keyring
    _load_plugins()
  File "/usr/lib/python3.6/site-packages/keyring/backend.py", line 199, in _load_plugins
    entry_points = metadata.entry_points()['keyring.backends']
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 893, in entry_points
    return SelectableGroups.load(eps).select(**params)
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 331, in load
    ordered = sorted(eps, key=by_group)
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 891, in <genexpr>
    dist.entry_points for dist in unique(distributions())
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 517, in entry_points
    return EntryPoints._from_text_for(self.read_text('entry_points.txt'), self)
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 244, in _from_text_for
    return cls(ep._for(dist) for ep in cls._from_text(text))
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 244, in <genexpr>
    return cls(ep._for(dist) for ep in cls._from_text(text))
  File "/usr/local/lib/python3.6/site-packages/importlib_metadata/__init__.py", line 255, in <genexpr>
    for name, value in values
ValueError: not enough values to unpack (expected 2, got 1)