I have added the two methods ex_create_balancer_policy(self, balancer, policy_name, policy_type) and ex_destroy_balancer_policy(self, balancer, policy_name) and also the dependent methods to get policy_name and policy_type. here is the link to the added methods in elb.py http://fpaste.org/79441/39305322/.
I am facing problem in debugging individual files and hence my test suits are failing. I have followed the official documentation i.e. executing this $ PYTHONPATH=. python libcloud/test/<path to test file> command on the root directory of the project but still it is yelling those methods ex_create_balancer_policy() are not the Attributes of ElasticLBDriver object error.
here is the link to the test_elb.py file http://fpaste.org/79446/39305442/

I'll have a look shortly.

Next time it would be a lot easier for both of us to just open a pull request with your work in progress changes. It makes it easier to add line comments, etc.

If you are worried about opening a pr for a working in progress thing, it's not a big deal and it's a pretty standard work-flow (you can always squash the commits once all the things have been addressed).

added the patch. Still some extension methods are left which can be added in future.