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template.html

views.py

<!DOCTYPE html>
<html>
<body>

{% if firstname|length_is:5 %}
  <h1>Hello</h1>
{% endif %}

<p>In views.py you can see what the fruits 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 = {
    'firstname': 'Linus',
    'lastname': 'Refsnes',    
    }
  return HttpResponse(template.render(context, request))