How to declare variables inside Django templates

Question

How do I declare a variable in Django 1.8 Templates for example like this:

{% my_var = "My String" %}

And so that I can access it like this:

<h1>{% trans my_var %}</h1>

Edit:

To demonstrate my purpose of this, this is my code:

{% my_var = "String Text" %}

{% block meta_title %}{% trans my_var %}{% endblock %}

{% block breadcrumb_menu %}
{{ block.super }}
<li>{% trans my_var %}</li>
{% endblock %}

{% block main %}

<h1>{% trans my_var %}</h1>

Answer 1

Try using the with tag.

{% with my_var="my string" %}
{% endwith %}

The other answer is more correct for what you're trying to do, but this is better for more generic cases.

Those who come here solely from the question title will need this.

Answer 2

One way I like to use is:

{% firstof "variable contents" as variable %}

Then you use it as {{variable}} wherever you want without the necessity for nesting with blocks, even if you define several variables.