parser.parseArgs().py

def parse_args():
    parser = argparse.ArgumentParser()
    parser.add_argument(
        '--device',
        type=int, 
        default=None,
        dest='device',
        help='pyaudio (portaudio) device index'
    )
    parser.add_argument(
        '--height',
        type=int,
        default=450, 
        dest='height',
        help='height, in pixels, of the visualizer window'
    )
    parser.add_argument(
        '--n_frequency_bins',
        type=int,
        default=400,
        dest='frequency_bins',
        help='The FFT features are grouped in bins'
    )
    parser.add_argument(
        '--verbose',
        action='store_true'
    )
    parser.add_argument(
        '--window_ratio', 
        default='24/9', 
        dest='window_ratio',
        help='float ratio of the visualizer window. e.g. 24/9'
    )
    parser.add_argument(
         '--sleep_between_frames',
         dest='sleep_between_frames',
         action='store_true',
         help='when true process sleeps between frames to reduce CPU usage (recommended for low update rates)'
    )
    return parser.parse_args()