def is_df_file_exist(rrd_dir, dev):
    ret = True

    rrd_filepath = ("%s/df/df-%s.rrd" % (rrd_dir, dev),
                    )

    for filepath in rrd_filepath:
        if is_readable(filepath) is False:
            ret = False

    return ret
dataset/ETHPy150Open karesansui/karesansui/karesansui/lib/rrd/df.py/is_df_file_exist/original