mpv window freeze before video end

[rfeyer]

OK,so I have tried dozens of different avenues to loop through a tuple, no success.
I have been able to write the tuple files to a file called mplaylist.e3u
However, now I can not find any coding or explanation which shows how to play a playlist from within python.
What I have now is:

import mpv
player = mpv.MPV(ytdl=True,input_default_bindings=True,input_vo_keyboard=True,osc=True)

def ViewFile():
     files_list = WidgetFrame.files_list
    # loop through files
    with open( 'mPlaylist.u3e', 'w+' ) as playlist:
        for f in files_list:
            print(f)
            playlist.write( f + '\n' )
        
        player.play("mPlylist.u3e")
    player.wait_for_playback
    playlist.close()

ANY suggestions would be greatly appreciated