Here's a program using Tkinter to scroll text in a box. See 1 and 2 regarding options for label()
; see 3 about the after()
method.
import Tkinter as tk
root = tk.Tk()
deli = 100 # milliseconds of delay per character
svar = tk.StringVar()
labl = tk.Label(root, textvariable=svar, height=10 )
def shif():
shif.msg = shif.msg[1:] + shif.msg[0]
svar.set(shif.msg)
root.after(deli, shif)
shif.msg = ' Is this an alert, or what? '
shif()
labl.pack()
root.mainloop()