#!/usr/bin/env python3
import botocore
import boto3
import sys


def main():
    client = boto3.client('s3')
    response = client.list_buckets()
    for bucket in response['Buckets']:
        try:
            response = client.get_bucket_ownership_controls(Bucket=bucket['Name'])
        except botocore.exceptions.ClientError as error:
            if error.response['Error']['Code'] == 'OwnershipControlsNotFoundError':
                print(bucket['Name'])
            else:
                raise error


if __name__ == '__main__':
    main()