old_contents: # Copyright 2011 OpenStack Foundation
  # Copyright 2013 Rackspace Hosting
  # Copyright 2013 Hewlett-Packard Development Company, L.P.
  # All Rights Reserved.
  #
  #    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.
  
  """
  Exception definitions
  """
  
  # flake8: noqa
  # alias exceptions from apiclient for users of this module
  from troveclient.openstack.common.apiclient.exceptions import *
  
  
  class NoTokenLookupException(Exception):
      """This form of authentication does not support looking up
         endpoints from an existing token.
      """
      pass
  
  
  class ResponseFormatError(Exception):
      """Could not parse the response format."""
      pass
  
  
  class GuestLogNotFoundError(Exception):
      """The specified guest log does not exist."""
      pass
  
new_contents: # Copyright 2011 OpenStack Foundation
  # Copyright 2013 Rackspace Hosting
  # Copyright 2013 Hewlett-Packard Development Company, L.P.
  # All Rights Reserved.
  #
  #    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.
  
  """
  Exception definitions
  """
  
  # alias exceptions from apiclient for users of this module
  from troveclient.openstack.common.apiclient.exceptions import *  # noqa
  
  
  class NoTokenLookupException(Exception):
      """This form of authentication does not support looking up
         endpoints from an existing token.
      """
      pass
  
  
  class ResponseFormatError(Exception):
      """Could not parse the response format."""
      pass
  
  
  class GuestLogNotFoundError(Exception):
      """The specified guest log does not exist."""
      pass
  
subject: Use "# noqa" instead of "#flake8: noqa"