yaml2

#!/usr/bin/env python2.7
import yaml

def ip():
    try:
        with open("ecs.yml") as stream:
            data=yaml.load(stream)
            location=["us-east-1","us-west-1"]
            for x in location:
                for value in data[x]:
                    print(value)
    except yaml.YAMLError as exc:
        print(exc)
ip()