Usar tostadas en Django
{% if messages %}
{% for message in messages %}
{% if message.tags == 'success'%}
<script type=text/javascript>toastr.{{ message.tags }}('{{ message }}')</script>
{% elif message.tags == 'info' %}
<script type=text/javascript>toastr.{{ message.tags }}('{{ message }}')</script>
{% elif message.tags == 'warning' %}
<script type=text/javascript>toastr.{{ message.tags }}('{{ message }}')</script>
{% elif message.tags == 'error' %}
<script type=text/javascript>toastr.{{ message.tags }}('{{ message }}')</script>
{% endif %}
{% endfor %}
{% endif %}
Yucky Yak