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import pygame,Tkinter,glob,time,thread,random
filelist=glob.glob("*.mp3")
pygame.mixer.init(22050,-16,2,4096)
main = Tkinter.Tk()
global start
start = 0

def back():
    global start
    if start > 2:
        start -= 2
        forward = 1
        thread.start_new_thread(play,())
        
def skip():
    forward = 1
    thread.start_new_thread(play,())
    
def resume():
    pygame.mixer.music.unpause()
    pause["text"] = "pause"
    pause["command"] = play_pause
    
def play_pause():
    pygame.mixer.music.pause()
    pause["text"] = "play"
    pause["command"] = resume
    
def shuffle_list():
    global start
    start = 0
    random.shuffle(filelist)
    shuffle_var = 1
    thread.start_new_thread(play,())
    
lb = Tkinter.Label(main)
lb.pack()
back_button = Tkinter.Button(main,text = "back",command = back)
back_button.pack()
pause = Tkinter.Button(main,text = "pause",command = play_pause)
pause.pack()
skip_button = Tkinter.Button(main,text = "skip", command = skip)
skip_button.pack()
shuffle = Tkinter.Button(main,text = "shuffle",command = shuffle_list)
shuffle.pack()
scb = Tkinter.Scrollbar(main,orient = "vertical")
file_list = Tkinter.Listbox(main,height = 10, yscrollcommand = scb.set)
scb["command"] = file_list.yview
file_list.pack(side = "left")
scb.pack(side = "left")

def play():
    global start
    shuffle_var = 0
    forward = 0
    file_list.delete(0,"end")
    for file in filelist:
        file_list.insert("end",file)
    for file in filelist[start:len(filelist)]:
        start += 1
        pygame.mixer.music.load(file)
        pygame.mixer.music.play()
        lb["text"] = file
        while pygame.mixer.music.get_busy():
            if shuffle_var == 1 or forward == 1:
                break
            else:
                time.sleep(5)
        if shuffle_var == 1 or forward == 1:
            break

thread.start_new_thread(play,())
main.mainloop()