old_contents: import unittest
  
  __all__ = ( 'BANNER', 'BORDER', 'HEADERS', 'StopWord', 'dev_null', 'flatten'
            , 'load')
  
  
  
  C = '-'
  BANNER = C*31 + "<| assertEquals |>" + C*31
  BORDER = C * 80
  HEADERS = ' '.join(["MODULE".ljust(60), "PASS", "FAIL", " ERR", " ALL"])
  
  
  class StopWord(StandardError):
      """Signals a stop word within a dotted module name.
      """
  
  
  class dev_null:
      """Output buffer that swallows everything.
      """
      def write(self, wheeeee):
          pass
  
  
  def flatten(_suite):
      """Given a TestSuite, return a flattened TestSuite.
      """
      suite = unittest.TestSuite()
      for item in _suite:
          if isinstance(item, unittest.TestCase):
              suite.addTest(item)
          if isinstance(item, unittest.TestSuite):
              suite.addTests(flatten(item))
      return suite
  
  
  def load(name):
      """Given a dotted name, return the last-named module instead of the first.
  
          http://docs.python.org/lib/built-in-funcs.html
  
      """
      module = __import__(name)
      for _name in name.split('.')[1:]:
          module = getattr(module, _name)
      return module
  
new_contents: import unittest
  
  __all__ = ( 'BANNER', 'BORDER', 'HEADERS', 'StopWord', 'dev_null', 'flatten'
            , 'load')
  
  
  
  C = '-'
  BANNER = C*31 + "<| assertEquals |>" + C*31
  BORDER = C * 80
  HEADERS = ' '.join(["MODULE".ljust(60), "PASS", "FAIL", " ERR", " ALL"])
  
  
  class StopWord(StandardError):
      """Signals a stop word within a dotted module name.
      """
  
  
  class dev_null:
      """Output buffer that swallows everything.
      """
      def write(self, wheeeee):
          pass
      def flush(self):
          pass
  
  
  def flatten(_suite):
      """Given a TestSuite, return a flattened TestSuite.
      """
      suite = unittest.TestSuite()
      for item in _suite:
          if isinstance(item, unittest.TestCase):
              suite.addTest(item)
          if isinstance(item, unittest.TestSuite):
              suite.addTests(flatten(item))
      return suite
  
  
  def load(name):
      """Given a dotted name, return the last-named module instead of the first.
  
          http://docs.python.org/lib/built-in-funcs.html
  
      """
      module = __import__(name)
      for _name in name.split('.')[1:]:
          module = getattr(module, _name)
      return module
  
subject: Improve dev_null stub; #2