+
−# Copyright 2009 the Melange authors.
+
−#
+
−# 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.
+
−
+
−__authors__ = [
+
−    # alphabetical order by last name, please
+
−    '"David Anderson" <dave@natulte.net>',
+
−    ]
+
−
+
−
+
−class Error(Exception):
+
−  """Base class for release script exceptions."""
+
−  pass
+
−
+
−
+
−class ObstructionError(Error):
+
−  """An operation was obstructed by existing data."""
+
−  pass
+
−
+
−
+
−class ExpectationFailed(Error):
+
−  """An unexpected state was encountered by an automated step."""
+
−  pass
+
−
+
−
+
−class AbortedByUser(Error):
+
−  """The operation was aborted by the user."""
+
−  pass