[AWS] display metrics and contexts

aws.py

import boto
import boto.ec2
import boto.ec2.cloudwatch
accounts = [
        ('<key>', '<secret>'),
]

regions = [r.name for r in boto.ec2.regions()]
for key, secret in accounts:
    for region in regions:
        print region
        try:
            ccw = boto.ec2.cloudwatch.connect_to_region(region, aws_access_key_id=key, aws_secret_access_key=secret)
            metrics = ccw.list_metrics(namespace='AWS/AutoScaling')
            for metric in metrics:
                print metric.name, metric.dimensions
        except Exception as e:
            print e