old_contents: """
  Exporter for exporting full HTML documents.
  """
  
  #-----------------------------------------------------------------------------
  # Copyright (c) 2013, the IPython Development Team.
  #
  # Distributed under the terms of the Modified BSD License.
  #
  # The full license is in the file COPYING.txt, distributed with this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  from IPython.utils.traitlets import Unicode
  
  # local import
  import basichtml
  
  from IPython.config import Config
  
  #-----------------------------------------------------------------------------
  # Classes
  #-----------------------------------------------------------------------------
  
  class FullHtmlExporter(basichtml.BasicHtmlExporter):
      """
      Exports a full HTML document.
      """
  
      template_file = Unicode(
              'fullhtml', config=True,
              help="Name of the template file to use")
  
      def _register_transformers(self):
          """
          Register all of the transformers needed for this exporter.
          """
  
          #Register the transformers of the base class.
          super(FullHtmlExporter, self)._register_transformers()
  
      @property
      def default_config(self):
          c = Config({'CSSHtmlHeaderTransformer':{'enabled':True}})
          c.merge(super(FullHtmlExporter,self).default_config)
          return c
new_contents: """
  Exporter for exporting full HTML documents.
  """
  
  #-----------------------------------------------------------------------------
  # Copyright (c) 2013, the IPython Development Team.
  #
  # Distributed under the terms of the Modified BSD License.
  #
  # The full license is in the file COPYING.txt, distributed with this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  from IPython.utils.traitlets import Unicode
  
  # local import
  import basichtml
  
  from IPython.config import Config
  
  #-----------------------------------------------------------------------------
  # Classes
  #-----------------------------------------------------------------------------
  
  class FullHtmlExporter(basichtml.BasicHtmlExporter):
      """
      Exports a full HTML document.
      """
  
      template_file = Unicode(
              'fullhtml', config=True,
              help="Name of the template file to use")
  
      @property
      def default_config(self):
          c = Config({'CSSHtmlHeaderTransformer':{'enabled':True}})
          c.merge(super(FullHtmlExporter,self).default_config)
          return c
  
subject: remove method calling only super