rackspace LB API - timing async actions

rackspace_lb_lc.py

test_lb = [b for b in balancers if b.name == 'Mark - T1'][0]
updated_balancer = conn.update_balancer(test_lb,
                         name='Mark - T2',
                         protocol='HTTPS',
                         port=84,
                         algorithm=Algorithm.ROUND_ROBIN)

import time
start = time.time()
while updated_balancer.state != State.RUNNING:
    updated_balancer = conn.get_balancer(updated_balancer.id)
    print "state is still %d, need %d" % (updated_balancer.state, State.RUNNING)
    time.sleep(2)
delta = time.time() - start
print "took %d seconds" % delta