docs: def _write_html(self, filename):
          """Read the html site with the given filename
          from the data directory and write it to :data:`RedirectHandler.wfile`.
  
          :param filename: the filename to read
          :type filename: :class:`str`
          :returns: None
          :rtype: None
          :raises: None
          """
          datapath = os.path.join('html', filename)
          sitepath = pkg_resources.resource_filename('pytwitcherapi', datapath)
          with open(sitepath, 'r') as f:
              html = f.read()
          self.wfile.write(html.encode('utf-8'))