def get_targets_from_bucket(client, src_bucket):
    """
    Find the 'TargetBucket' tag on a bucket and return
    a list of all targets
    """
    bucket_tagging = client.get_bucket_tagging(Bucket=src_bucket)
    tags = bucket_tagging["TagSet"]

    # Look for the 'TargetBucket' string
    for t in tags:
        if t["Key"] == "TargetBucket":
            return t["Value"].split(" ")

    return None