old_contents: """
  Filters for converting plain text to HTML and enhancing the
  typographic appeal of text on the Web.
  
  """
  
  from django.conf import settings
  from django.template import Library
  from template_utils.markup import formatter
  
  def apply_markup(value, arg=None):
      """
      Applies text-to-HTML conversion.
      
      Takes an optional argument to specify the name of a filter to use.
      
      """
      if arg is not None:
          return formatter(value, filter_name=arg)
      return formatter(value)
  
  def smartypants(value):
      """
      Applies SmartyPants to a piece of text, applying typographic
      niceties.
      
      Requires the Python SmartyPants library to be installed; see
      http://web.chad.org/projects/smartypants.py/
      
      """
      try:
          from smartypants import smartyPants
      except ImportError:
          if settings.DEBUG:
              raise template.TemplateSyntaxError("Error in smartypants filter: the Python smartypants module is not installed or could not be imported")
          return value
      else:
          return smartyPants(value)
  
  register = Library()
  register.filter(apply_markup)
  
new_contents: """
  Filters for converting plain text to HTML and enhancing the
  typographic appeal of text on the Web.
  
  """
  
  from django.conf import settings
  from django.template import Library
  from template_utils.markup import formatter
  
  def apply_markup(value, arg=None):
      """
      Applies text-to-HTML conversion.
      
      Takes an optional argument to specify the name of a filter to use.
      
      """
      if arg is not None:
          return formatter(value, filter_name=arg)
      return formatter(value)
  
  def smartypants(value):
      """
      Applies SmartyPants to a piece of text, applying typographic
      niceties.
      
      Requires the Python SmartyPants library to be installed; see
      http://web.chad.org/projects/smartypants.py/
      
      """
      try:
          from smartypants import smartyPants
      except ImportError:
          if settings.DEBUG:
              raise template.TemplateSyntaxError("Error in smartypants filter: the Python smartypants module is not installed or could not be imported")
          return value
      else:
          return smartyPants(value)
  
  register = Library()
  register.filter(apply_markup)
  register.filter(smartypants)
  
subject: Enable the SmartyPants filter; need to document it later