Jinja2 / Bootstrap Navigation Active Page highlighting

gistfile1.txt

<ul class="nav nav-pills pull-right">
  {%- for endpoint, caption in [
  ('index', 'Index'),
  ('add_user', 'Add User')
  ] %}
    <li{% if endpoint == request.endpoint %} class="active"{% endif %}>
      <a href={{ url_for(endpoint) }}>{{ caption }}</a>
    </li>
  {%- endfor %}
</ul>