python-barbicanclient authentication with Rackspace Identity

gistfile1.py

from barbicanclient.common import auth
from barbicanclient import client

# using username and password
rack_auth = auth.RackspaceAuthV2(auth_url='http://identity.rackspace...',
                                 username='username',
                                 password='password')
                                 
# alternatively you can use an api-key instead of a password
rack_auth = auth.RackspaceAuthV2(auth_url='http://identity.rackspace...',
                                 username='username',
                                 api_key='api-key')
                                 
# now instantiate the client, this will authenticate and 
# retrieve the barbican endpoint from the catalog
barbican = client.Client(auth_plugin=rack_auth)

# alternatively, you can specify the barbican endpoint
barbican = client.Client(auth_plugin=rack_auth, endpoint='htttp://barbican.rackspace...')

# now you can use the client to start the verification process
barbican.verifications.create(resource_ref='server_id', resource_type='image', resource_action='vm_attach')