Show messages and errors in Django templates. Useful to just throw in a base template.

messages_and_errors_django_template.html

  {% if messages %}
    {% for message in messages %}
      <div class="alert {% if message.tags %} alert-{{ message.tags }}{% endif %}">{{ message|safe }}</div>
    {% endfor %}
  {% endif %}

  {% if form.errors %}
    <div class="alert alert-error">
      <h4>Please fix the following errors</h4>
      <ul>
        {% for field in form %}
          {% if field.errors %}
            {% for error in field.errors %}
              <li><a href="#id_{{ field.name }}" class="error">{{ error|escape }}</a></li>
            {% endfor %}
          {% endif %}
        {% endfor %}
      </ul>
      {% if form.non_field_errors %}
        {{ form.non_field_errors }}
      {% endif %}
    </div>
  {% endif %}

what makes escape?

It is a built-in filter: https://docs.djangoproject.com/en/3.1/ref/templates/builtins/#escape.