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

<h1>{{ name|center:20 }}</h1>

<p>In HTML the display does not show more than one space,
but if you view the page source you will see that there are
20 characters between &lt;h1&gt; and &lt;/h1&gt;.</p>

<p>Or, to demonstrate we can use a textarea to see that "Tobias" is center aligned:</p>

<textarea>{{ name|center:20 }}</textarea>

<p>In views.py you can see what the name 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 = {
    'name': 'Tobias',
  }
  return HttpResponse(template.render(context, request))                    
127.0.0.1:8000/testing