load text file line in listbox python tkinter site:stackoverflow.com code example

Example: load text file line in listbox python tkinter site:stackoverflow.com

from tkinter import *

root = Tk()
Lb = Listbox(root)
Lb.grid()
f = open("test.txt","r")
for x in f:
    Lb.insert(END,x)
    print(x)
f.close()
root.mainloop()