Public bug reported:

Logs show:

2018-03-05 20:50:01.665 35 WARNING stevedore.named [-] Could not load uuid
2018-03-05 20:50:01.666 35 CRITICAL keystone [-] Unhandled error: ImportError: 
(u'Unable to find %(name)r driver in %(namespace)r.',
 {'namespace': 'keystone.token.provider', 'name': 'uuid'})
2018-03-05 20:50:01.666 35 ERROR keystone Traceback (most recent call last):
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/bin/keystone-manage", line 10, in <module>
2018-03-05 20:50:01.666 35 ERROR keystone     sys.exit(main())
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/manage.py", line 
45, 
in main
2018-03-05 20:50:01.666 35 ERROR keystone     cli.main(argv=sys.argv, 
config_files=config_files)
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
1349, i
n main
2018-03-05 20:50:01.666 35 ERROR keystone     CONF.command.cmd_class.main()
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
397, in
 main
2018-03-05 20:50:01.666 35 ERROR keystone     klass = cls()
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 66, 
in 
__init__
2018-03-05 20:50:01.666 35 ERROR keystone     self.load_backends()
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
129, in
 load_backends
2018-03-05 20:50:01.666 35 ERROR keystone     drivers = backends.load_backends()
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/server/backends.py", 
line
 53, in load_backends
2018-03-05 20:50:01.666 35 ERROR keystone     drivers = {d._provides_api: d() 
for d in managers}
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/server/backends.py", 
line
 53, in <dictcomp>
2018-03-05 20:50:01.666 35 ERROR keystone     drivers = {d._provides_api: d() 
for d in managers}
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/token/provider.py", 
line 
65, in __init__
2018-03-05 20:50:01.666 35 ERROR keystone     super(Manager, 
self).__init__(CONF.token.provider)
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/common/manager.py", 
line 
181, in __init__
2018-03-05 20:50:01.666 35 ERROR keystone     self.driver = 
load_driver(self.driver_namespace, driver_name)
2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/common/manager.py", 
line 
81, in load_driver
2018-03-05 20:50:01.666 35 ERROR keystone     raise ImportError(msg, {'name': 
driver_name, 'namespace': namespace})
2018-03-05 20:50:01.666 35 ERROR keystone ImportError: (u'Unable to find 
%(name)r driver in %(namespace)r.', {'namespace': 'keystone
.token.provider', 'name': 'uuid'})
2018-03-05 20:50:01.666 35 ERROR keystone 

which is misleading.  The correct error should be:

2018-03-05 20:50:25.517 47 ERROR keystone ImportError: Unable to find
'uuid' driver in 'keystone.token.provider'.

** Affects: keystone
     Importance: Undecided
         Status: New

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You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Identity (keystone).
https://bugs.launchpad.net/bugs/1753584

Title:
  incorrect ImportError message raised

Status in OpenStack Identity (keystone):
  New

Bug description:
  Logs show:

  2018-03-05 20:50:01.665 35 WARNING stevedore.named [-] Could not load uuid
  2018-03-05 20:50:01.666 35 CRITICAL keystone [-] Unhandled error: 
ImportError: (u'Unable to find %(name)r driver in %(namespace)r.',
   {'namespace': 'keystone.token.provider', 'name': 'uuid'})
  2018-03-05 20:50:01.666 35 ERROR keystone Traceback (most recent call last):
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/bin/keystone-manage", line 10, in <module>
  2018-03-05 20:50:01.666 35 ERROR keystone     sys.exit(main())
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/manage.py", line 
45, 
  in main
  2018-03-05 20:50:01.666 35 ERROR keystone     cli.main(argv=sys.argv, 
config_files=config_files)
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
1349, i
  n main
  2018-03-05 20:50:01.666 35 ERROR keystone     CONF.command.cmd_class.main()
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
397, in
   main
  2018-03-05 20:50:01.666 35 ERROR keystone     klass = cls()
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 66, 
in 
  __init__
  2018-03-05 20:50:01.666 35 ERROR keystone     self.load_backends()
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/cmd/cli.py", line 
129, in
   load_backends
  2018-03-05 20:50:01.666 35 ERROR keystone     drivers = 
backends.load_backends()
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/server/backends.py", 
line
   53, in load_backends
  2018-03-05 20:50:01.666 35 ERROR keystone     drivers = {d._provides_api: d() 
for d in managers}
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/server/backends.py", 
line
   53, in <dictcomp>
  2018-03-05 20:50:01.666 35 ERROR keystone     drivers = {d._provides_api: d() 
for d in managers}
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/token/provider.py", 
line 
  65, in __init__
  2018-03-05 20:50:01.666 35 ERROR keystone     super(Manager, 
self).__init__(CONF.token.provider)
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/common/manager.py", 
line 
  181, in __init__
  2018-03-05 20:50:01.666 35 ERROR keystone     self.driver = 
load_driver(self.driver_namespace, driver_name)
  2018-03-05 20:50:01.666 35 ERROR keystone   File 
"/var/lib/kolla/venv/lib/python2.7/site-packages/keystone/common/manager.py", 
line 
  81, in load_driver
  2018-03-05 20:50:01.666 35 ERROR keystone     raise ImportError(msg, {'name': 
driver_name, 'namespace': namespace})
  2018-03-05 20:50:01.666 35 ERROR keystone ImportError: (u'Unable to find 
%(name)r driver in %(namespace)r.', {'namespace': 'keystone
  .token.provider', 'name': 'uuid'})
  2018-03-05 20:50:01.666 35 ERROR keystone 

  which is misleading.  The correct error should be:

  2018-03-05 20:50:25.517 47 ERROR keystone ImportError: Unable to find
  'uuid' driver in 'keystone.token.provider'.

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