demod_tetrapol_tx.grc isn't working with Dragon_OS_focale R28

As I generate the demod_tetrapol_tx.py, I have the following errors

 def __init__(self, args=, freq=380000000, freq_offs=200000, in_file=, out_file=, oversample=10, ppm=0):
        gr.top_block.__init__(self, "TETRAPOL TX", catch_exceptions=True)

No quote at in_file and out file

on line 175 on python file

ef main(top_block_cls=tetrapol_tx, options=None):
    if options is None:
        options = argument_parser().parse_args()
    tb = top_block_cls(freq=options.freq, freq_offs=options.freq_offs, oversample=options.oversample, ppm=options.ppm)

    def sig_handler(sig=None, frame=None):
        tb.stop()
        tb.wait()

there are no arguments for infile and outfile

here is what it look like with previous version (gnuradio 3.7)

def main(top_block_cls=tetrapol_tx, options=None):
    if options is None:
        options, _ = argument_parser().parse_args()

    tb = top_block_cls(args=options.args, freq=options.freq, freq_offs=options.freq_offs, in_file=options.in_file, out_file=options.out_file, oversample=options.oversample, ppm=options.ppm)
    tb.start()
    tb.wait()

Even with modifications still can't work

If some one has a good demod_tetrapol_tx.py workin

Thanks