def _user_cert_subject(user_id, project_id):
 return (CONF.crypto.user_cert_subject % (project_id, user_id, utils.isotime()))

def _user_cert_subject ( user_id , project_id ) : return ( CONF . crypto . user_cert_subject % ( project_id , user_id , utils . isotime ( ) ) )
helper to generate user cert subject .