<div class="col-md-offset-1 col-md-3" id="sidebar">
  {% include "rp-advert.html" %}
  <div class="panel">
      <div class="panel-heading"><h3 class="panel-head">{% for p in pages|sort(attribute='sortorder') %}{% if page and p.slug == page.slug %}{{ p.title }}{% endif %}{% endfor %}{% if not page %}Full Stack Python{% endif %}</h3></div>
      <div class="panel-body">
          {% if not page %}
          <a href="/">Full Stack Python</a> 是一本开源图书，它用朴实的语言阐释概念并提供�