def _list_archive_members(archive):
    """
    :param archive:
        An archive from _open_archive()

    :return:
        A list of info objects to be used with _info_name() and _extract_info()
    """

    if isinstance(archive, zipfile.ZipFile):
        return archive.infolist()
    return archive.getmembers()
:param archive:
        An archive from _open_archive()

    :return:
        A list of info objects to be used with _info_name() and _extract_info()