text: # -*- coding: utf-8 -*-
  
  # Copyright 2017 IBM RESEARCH. 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 for errors raised by the QISKit SDK.
  """
  
  
  class QISKitError(Exception):
      """Base class for errors raised by the QISKit SDK."""
  
      def __init__(self, *message):
          """Set the error message."""
          super().__init__(' '.join(message))
          self.message = ' '.join(message)
  
      def __str__(self):
          """Return the message."""
          return repr(self.message)
  
  
  class QISKitIndexError(QISKitError, IndexError):
      """Raised when a sequence subscript is out of range."""
      pass
  