I wrote a module to display a random video based on the  successful evaluation of the FacialRecognition module… It executes  without any obvious errors but only the following output appears on the mirror.
//         helloworld
//module_0_helloworld
I modified the hellowworld module as follows
Module.register("helloworld",{
#!/usr/bin/env python
        import os, random
        def rndvid ():
        randomfile = random.choice(os.listdir("/home/pi/Videos"))
        file = ' /home/pi/Videos/'+ randomfile
        os.system ('omxplayer' + file)
         rndvid ()
}
});
I would love som help