Tkinter==>Label/Msg present only 1 item in the list. How to resolve?

Question

Well, the goal is to make, on the same label or msg, all the items on the list appear. I’m not very experienced at Tkinter, so I don’t know if there’s a limit to that. Follow part of the code below.

prod=['Exemplo-10.00','Exemplo2-20.00','Exemplo3-30.00']
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def create_window():
    top = tk.Toplevel()
    top.title('Tabela de Preços')
    h=Message(top, width=310 , text='' )
    h.place(x=50,y=50)
    h.config(font=('Courier', 20))
    h.pack()
    def listagem():
        for i in prod:
            yo=int(i.find('-'))
            h['text']=str(i[0:yo]+'.......'+str(i[yo:-1]))
    bto=Button(top, width=22 , height=2 ,text='Clique para mostrar a tabela', command=listagem)
    bto.place(x=0,y=5)
    bto.pack()
    top.geometry('400x600+300+60')