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template.html

views.py

<!DOCTYPE html>
<html>
<body>

{{ mytext|truncatewords_html:3 }}

<p>In views.py you can see what the mytext 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 = {
    'mytext': '&lt;h1>Hello my friend, do you like DJANGO?&lt;/h1>',   
  }
  return HttpResponse(template.render(context, request))