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

{{ cars|json_script:"mycars" }}

<p>Right-click in this frame and check out the frame source to see the added &lt;script&gt; element.</p>

<p>In views.py you can see what the cars 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 = {
    'cars': [
      {'brand': 'Ford', 'model': 'Mustang', 'year': 1964},
    ]
  }
  return HttpResponse(template.render(context, request))                    
127.0.0.1:8000/testing