{% url "catalogue_lessons" as lessons_url %}
{% for level, course_list in object_list %}
<section class="levelth" style="float: left;">{{ level }}:
<ul class="link-list">
        {% for course in course_list %}
            <li><a href="{{ lessons_url }}#{{ level.slug }}_{{ course.slug }}">
            {% if accusative %}
                {{ course.accusative }}{% else %}
                {{ course|lower }}{% endif %}</a>
                </li>
        {% endfor %}
</ul>
</section>
{% endfor %}