Release unused elastic IPs

gistfile1.txt

import boto
import boto.ec2

conn = boto.connect_ec2()

eips = conn.get_all_addresses()

for eip in eips:
  if eip.association_id is None:
    try:
      conn.release_address(public_ip=eip.public_ip)
    except boto.exception.EC2ResponseError:
      conn.release_address(allocation_id=eip.allocation_id)