old_contents: # -*- coding: utf-8 -*-
  
  MISSING_CORPUS_MESSAGE = """
  Looks like you are missing some required data for this feature.
  
  To download the necessary data, simply run
  
      curl https://raw.github.com/sloria/TextBlob/master/download_corpora.py | python
  
  Or use the NLTK downloader to download the missing data: http://nltk.org/data.html
  If this doesn't fix the problem, file an issue at https://github.com/sloria/TextBlob/issues.
  """
  
  class MissingCorpusException(Exception):
  
      '''Exception thrown when a user tries to use a feature that requires a
      dataset or model that the user does not have on their system.
      '''
  
      def __init__(self, message=MISSING_CORPUS_MESSAGE, *args, **kwargs):
          super(MissingCorpusException, self).__init__(message, *args, **kwargs)
  
new_contents: # -*- coding: utf-8 -*-
  
  MISSING_CORPUS_MESSAGE = """
  Looks like you are missing some required data for this feature.
  
  To download the necessary data, simply run
  
      curl https://raw.github.com/sloria/TextBlob/master/download_corpora.py | python
  
  Or use the NLTK downloader to download the missing data: http://nltk.org/data.html
  If this doesn't fix the problem, file an issue at https://github.com/sloria/TextBlob/issues.
  """
  
  class TextBlobException(Exception):
      '''A TextBlob-related exception.'''
  
  class MissingCorpusException(TextBlobException):
  
      '''Exception thrown when a user tries to use a feature that requires a
      dataset or model that the user does not have on their system.
      '''
  
      def __init__(self, message=MISSING_CORPUS_MESSAGE, *args, **kwargs):
          super(MissingCorpusException, self).__init__(message, *args, **kwargs)
  
subject: Add TextBlobException