old_contents: from pyramid import mako_templating
  from pyjade.ext.mako import preprocessor
  
  def includeme(config):
      config.add_renderer(".jade", PyjadeRenderer)
  
  class PyjadeRenderer(object):
      """
      The jade renderer
      """
      def __init__(self, info):
          info.settings['mako.preprocessor'] = preprocessor
          self.makoRenderer = mako_templating.renderer_factory(info)
  
      def __call__(self, value, system):
          return self.makoRenderer(value, system)
  
new_contents: from pyjade.ext.mako import preprocessor
  try:
      from pyramid_mako import MakoRendererFactory
      from pyramid_mako import parse_options_from_settings
      from pyramid_mako import PkgResourceTemplateLookup
      is_pyramid_mako = True
  except ImportError:
      from pyramid import mako_templating
  
  class PyjadeRenderer(object):
      """
      The jade renderer
      """
      def __init__(self, info):
          info.settings['mako.preprocessor'] = preprocessor
          self.makoRenderer = mako_templating.renderer_factory(info)
  
      def __call__(self, value, system):
          return self.makoRenderer(value, system)
  
  
  def add_jade_renderer(config, extension, mako_settings_prefix='mako.'):
  
      renderer_factory = MakoRendererFactory()
      config.add_renderer(extension, renderer_factory)
  
      def register():
          settings = config.registry.settings
          settings['{0}preprocessor'.format(mako_settings_prefix)] = preprocessor
  
          opts = parse_options_from_settings(settings, mako_settings_prefix, config.maybe_dotted)
          lookup = PkgResourceTemplateLookup(**opts)
  
          renderer_factory.lookup = lookup
  
      config.action(('jade-renderer', extension), register)
  
  
  def includeme(config):
      if not is_pyramid_mako:
          config.add_renderer(".jade", renderer)
      else:
          config.add_directive('add_jade_renderer', add_jade_renderer)
          config.add_jade_renderer('.jade')
  
subject: add support for pyramid_mako and pyramid >= 1.5