Is there a way to pass a variable to an 'extended' template in Django?
<p>I want to add some flexibility to my layout template, but I can't find any way to do so. </p>

<p>I'm looking for a way to <code>extend</code> my layout template with variable, i.e. to pass a variable up in the template tree, not down.</p>

<pre><code># views.py
def my_view_func(request):
    return render(request, "child.html")
</code></pre>

<hr>

<pre><code># child.html
{% extends 'layout.html' with show_sidebar=True sidebar_width_class="width_4" %}

&lt;div&gt;Templates stuff here&lt;/div&gt;
</code></pre>

<hr>

<pre><code># layout.html
{% if show_sidebar %}
    &lt;div class="{{ sidebar_width_class }}"&gt;
        {% block sidebar %}{% endblock %}
    &lt;/div&gt;
{% endif %}
</code></pre>

<p>I have to maintain four templates with a difference in a few lines of code. For example, I have two templates that differ from each other by a sidebar width class. Am I doing something wrong?</p>