{% regroup people by gender as gender_list %}

<h1>Users ({{ people|length }} in {{ gender_list|length }} genders)</h1>
<ul>
{% for i,gender in gender_list %}
    <li>"{{ gender.grouper }}" is equals to "{{ gender_list[i]["grouper"] }}"
    <ul>
        {% for item in gender.list %}
        <li>{{ item.first_name|upper|safe }} {{ item.last_name|safe }} ({% firstof item.foobar item.bar "unset both" %}) {{ item.bar|default:"default value"|upper }} 
        {% if "das" in item.last_name %}
            (Last name contains "das")
        {% endif %}
        {% if forloop.last %} 
             { Last item }
        {% endif %}</li>


        {% endfor %}
    </ul>
    </li>
{% endfor %}
</ul>

{% if "ab" in "abcd" %}
    <h1>here</h1>
{% endif %}

{# Show list of dates #}
{% for date in days %}
    {% ifchanged %}<h3>{{ date|date:"F" }}</h3>{% endifchanged %}
    <a href="{{ date|date:"M/d"|lower }}/">{{ date|date:"j" }}</a>
{% endfor %}

{% include templates.base %}