text: from jinja2 import Environment, FileSystemLoader
  
  class MyWSGIApplication(object):
      def __call__(self, environ, start_response):
          jinja2_env = Environment(loader=FileSystemLoader('./templates', encoding='utf8'))
          template = jinja2_env.get_template('hello.html')
          html = template.render()
  
          start_response('200 OK', [('Content-Type', 'text/html')])
          return [html.encode('utf-8')]
  
  
  app = MyWSGIApplication()
  