Get your own Django server
template.html
views.py
 
<!DOCTYPE html>
<html>
<body>

{% if totalsum|divisibleby:5 %}
  <h1>Yes, it is!</h1>
{% endif %}

<p>In views.py you can see what the totalsum variable looks like.</p>

</body>
</html>                  
from django.http import HttpResponse
from django.template import loader

def testing(request):
  template = loader.get_template('template.html')
  context = {
    'totalsum': 40,
  }
  return HttpResponse(template.render(context, request))                    
127.0.0.1:8000/testing