@elight.. thats a tricky one there.  All the other opentstacky tools seem to use this technique, i.e skip inclusion of the tenant identifier and get unscoped tokens.. While I would agree that clearly named methods/requests are better, it might create a bit of an impedance mismatch when jumping from openstack tool to openstack tool.  Chris may be better positioned to comment on this given that he also works python (and my recollection of the other tools maybe somewhat dated by now)... /cc @wchrisjohnson