old_contents: #!/usr/bin/env python
  # Copyright 2014 Hewlett-Packard Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  # implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """
  Barbican Keystone notification listener server.
  """
  
  import eventlet
  import os
  import sys
  
  # Oslo messaging notification server uses eventlet.
  #
  # To have remote debugging, thread module needs to be disabled.
  # eventlet.monkey_patch(thread=False)
  eventlet.monkey_patch()
  
  
  # 'Borrowed' from the Glance project:
  # If ../barbican/__init__.py exists, add ../ to Python search path, so that
  # it will override what happens to be installed in /usr/(local/)lib/python...
  possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
                                     os.pardir,
                                     os.pardir))
  if os.path.exists(os.path.join(possible_topdir, 'barbican', '__init__.py')):
      sys.path.insert(0, possible_topdir)
  
  
  from barbican.common import config
  from barbican import queue
  from barbican.queue import keystone_listener
  
  from oslo_log import log
  from oslo_service import service
  
  
  def fail(returncode, e):
      sys.stderr.write("ERROR: {0}\n".format(e))
      sys.exit(returncode)
  
  
  if __name__ == '__main__':
      try:
          config.setup_remote_pydev_debug()
          # Import and configure logging.
          log.setup('barbican')
  
          LOG = log.getLogger(__name__)
          LOG.info("Booting up Barbican Keystone listener node...")
  
          # Queuing initialization
          CONF = config.CONF
          queue.init(CONF)
  
          if getattr(getattr(CONF, queue.KS_NOTIFICATIONS_GRP_NAME), 'enable'):
              service.launch(
                  CONF,
                  keystone_listener.MessageServer(CONF)
              ).wait()
          else:
              LOG.info("Exiting as Barbican Keystone listener is not enabled...")
      except RuntimeError as e:
          fail(1, e)
  
new_contents: #!/usr/bin/env python
  # Copyright 2014 Hewlett-Packard Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  # implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """
  Barbican Keystone notification listener server.
  """
  
  import eventlet
  import os
  import sys
  
  # Oslo messaging notification server uses eventlet.
  #
  # To have remote debugging, thread module needs to be disabled.
  # eventlet.monkey_patch(thread=False)
  eventlet.monkey_patch()
  
  
  # 'Borrowed' from the Glance project:
  # If ../barbican/__init__.py exists, add ../ to Python search path, so that
  # it will override what happens to be installed in /usr/(local/)lib/python...
  possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
                                     os.pardir,
                                     os.pardir))
  if os.path.exists(os.path.join(possible_topdir, 'barbican', '__init__.py')):
      sys.path.insert(0, possible_topdir)
  
  
  from barbican.common import config
  from barbican import queue
  from barbican.queue import keystone_listener
  
  from oslo_log import log
  from oslo_service import service
  
  
  def fail(returncode, e):
      sys.stderr.write("ERROR: {0}\n".format(e))
      sys.exit(returncode)
  
  
  def main():
      try:
          config.setup_remote_pydev_debug()
  
          CONF = config.CONF
  
          # Import and configure logging.
          log.setup(CONF, 'barbican')
  
          LOG = log.getLogger(__name__)
          LOG.info("Booting up Barbican Keystone listener node...")
  
          # Queuing initialization
          queue.init(CONF)
  
          if getattr(getattr(CONF, queue.KS_NOTIFICATIONS_GRP_NAME), 'enable'):
              service.launch(
                  CONF,
                  keystone_listener.MessageServer(CONF)
              ).wait()
          else:
              LOG.info("Exiting as Barbican Keystone listener is not enabled...")
      except RuntimeError as e:
          fail(1, e)
  
  if __name__ == '__main__':
      sys.exit(main())
  
subject: Fix keystone_listener.py