django模板在base.html中导入include中再添加自定义标签 错误

 base.html

......

<!-- 侧边栏目 -->
{% include 'blog/secondary.html' %}

......

secondary.html

{# 热点文章 #}
    {% block hotnews %}
        <aside id="views-4" class="widget widget_views"><h3 class="widget-title">Hot Views</h3>
            <ul>
                {% hot_news_tag as hot_news_list %}
                {% for news in hot_news_list %}
                    <li>
                        <a href="{{ news.get_absolute_url }}" title="{{ news.title }}">
                            {{ news.title }}
                        </a> - 阅读({{ news.views }})
                    </li>
                {% endfor %}
            </ul>

        </aside>
    {% endblock %}

django.template.exceptions.TemplateSyntaxError: Invalid block tag on line 32: 'hot_news_tag', expected 'endblock'. Did you forget to register or load this tag?

这里报出错误说 "是否忘记注册或加载此标记?"

解决方式:

在secondary.html 文件首行添加

{% load blog_tags %}

{# 这里需要注册 #}
{% load blog_tags %}


{# 热点文章 #}
{% block hotnews %}
    <aside id="views-4" class="widget widget_views"><h3 class="widget-title">Hot Views</h3>
        <ul>
            {% hot_news_tag as hot_news_list %}
            {% for news in hot_news_list %}
                <li>
                    <a href="{{ news.get_absolute_url }}" title="{{ news.title }}">
                        {{ news.title }}
                    </a> - 阅读({{ news.views }})
                </li>
            {% endfor %}
        </ul>

    </aside>
{% endblock %}