old_contents: # -*- coding: utf-8 -*-
  
  class SpamBLError(Exception):
      ''' Base exception class for spambl module '''
      
  class UnknownCodeError(SpamBLError):
      ''' Raise when trying to use an unexpected value of dnsbl return code '''
      
  class UnathorizedAPIKeyError(SpamBLError):
      ''' Raise when trying to use an unathorized api key '''
  
new_contents: # -*- coding: utf-8 -*-
  
  class SpamBLError(Exception):
      '''There was an error during testing a url or host'''
      
  class UnknownCodeError(SpamBLError):
      '''The classification code from the service was not recognized'''
      
  class UnathorizedAPIKeyError(SpamBLError):
      '''The API key used to query the service was not authorized'''
  
subject: Reword docstrings for exception classes