pride-flag-loop.py

while True:
    for infile in glob.glob("pride/*.png"):
        im = Image.open(infile)
        pixel_grid = list(im.getdata())

        for channel in range(8):
            pixels = pixel_grid[channel:-1:8]
            for num, pixel in enumerate(pixels):
                pixel = darken_color(pixel[0], pixel[1], pixel[2], factor=0.3)
                set_pixel(mote_hosts, channel + 1, num, pixel[0], pixel[1], pixel[2])
        motes_show()
        time.sleep(0.4)