new_contents: import argparse
  import boto.ec2
  
  access_key = ''
  secret_key = ''
  
  def get_ec2_instances(region):
      ec2_conn = boto.ec2.connect_to_region(region,
                  aws_access_key_id=access_key,
                  aws_secret_access_key=secret_key)
      reservations = ec2_conn.get_all_reservations()
      for reservation in reservations:    
          print region+':',reservation.instances
  
      for vol in ec2_conn.get_all_volumes():
          print region+':',vol.id
  
      
  
  def main():
      regions = ['us-east-1','us-west-1','us-west-2','eu-west-1','sa-east-1',
                  'ap-southeast-1','ap-southeast-2','ap-northeast-1']
      parser = argparse.ArgumentParser()
      parser.add_argument('access_key', help='Access Key');
      parser.add_argument('secret_key', help='Secret Key');
      args = parser.parse_args()
      global access_key
      global secret_key
      access_key = args.access_key
      secret_key = args.secret_key
      
      for region in regions: get_ec2_instances(region)
  
  if  __name__ =='__main__':main()
  
subject: Create list.py