def parse_url(url):
    """
    Parse a 'swift://CONTAINER/OBJECT' style URL
    :param url:
    :return: dictionary with "container" and "obj" keys
    """
    url = url.replace("swift://", "")
    if url.find("/") == -1:
        raise ValueError("Swift url must be 'swift://container/object'")
    pieces = url.split("/")
    containername = pieces[0]
    objname = "/".join(pieces[1:])
    return {
        "container": containername,
        "obj": objname,
    }