code: def render_as_html(self, full=False):
          
          from jinja2.debugrenderer import render_traceback
          return u'%s\n\n<!--\n%s\n-->' % (
              render_traceback(self, full=full),
              self.render_as_text().decode('utf-8', 'replace')
          )
docs: Return a unicode string with the traceback as rendered HTML.