def check_session_file():
    data = file_utils.read_from_session_file()
    if data:
        ok = all(k in data for k in SESSION_INFO)
        if ok:
            ok = all(six.itervalues(data))
        return ok
    return False
def get_session_info():
    if check_session_file():
        data = file_utils.read_from_session_file()
        return _create_namedtuple('Session', data)