accessing eucalyptus with boto

gistfile1.py

import boto
from boto.ec2.connection import EC2Connection
from boto.ec2.regioninfo import RegionInfo

region = RegionInfo(name="eucalyptus", endpoint=hostname)
#conn = EC2Connection('<aws access key>', '<aws secret key>')


connection = boto.connect_ec2(aws_access_key_id=access_key,
                              aws_secret_access_key=secret_key,
                              is_secure=False,
                              region=region,
                              port=8773,
                              path="/services/Eucalyptus")
#Run command

images = connection.get_all_images()
print images

instances_reservations = connection.get_all_instances()
print instances_reservations