from time import time, sleep
from Tkinter import *
def empty_textbox():
textbox.insert(END, 'This is a test')
sleep(5)
textbox.delete("1.0", END)
root = Tk()
frame = Frame(root, width=300, height=100)
textbox = Text(frame)
frame.pack_propagate(0)
frame.pack()
textbox.pack()
empty_textbox()
root.mainloop()
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