W3Schools Tryit Editor

template.html

views.py

<!DOCTYPE html>
<html>
<body>

<h1>
  {% templatetag openblock %}
    extends
  {% templatetag closeblock %}
</h1>

</body>
</html>

from django.http import HttpResponse
from django.template import loader

def testing(request):
  template = loader.get_template('template.html')
  return HttpResponse(template.render())