new_contents: """
  This module defines exception classes for flickipedia
  """
  
  class WikiAPICallError(Exception):
      """ Basic exception class for Wiki api calls """
      def __init__(self, message="Wiki api call error."):
          Exception.__init__(self, message)
  
  
  class FlickrAPICallError(Exception):
      """ Basic exception class for Flickr api calls"""
      def __init__(self, message="Flickr api call error."):
          Exception.__init__(self, message)
  
subject: add - module defining error modes for service