code: def current_url_name(context):
      
      url_name = False
      if context.request.resolver_match:
          url_name = "{}:{}".format(
                                  context.request.resolver_match.namespace,
                                  context.request.resolver_match.url_name
                              )
      return url_name
docs: Returns the name of the current URL, namespaced, or False.
  
      Example usage:
  
          {% current_url_name as url_name %}
  
          <a href="#"{% if url_name == 'myapp:home' %} class="active"{% endif %}">Home</a>