Comment 7 for bug 1031139

It is a problem/limitation of nova not of python-novaclient.

What nova do for this API -
nova takes the API request and if no project id is given, curent tenant quotas will be displayed.
Again if we are taking "--tenant <tenant id >" option then it will be ignored as per current implementation.

As per current implementation of nova -
It will treat filtering on basis of current tenant and different users in current tenant.

So changing it to nova.

And also it is a Duplicate of https://bugs.launchpad.net/nova/+bug/1118066