Загрузите строку текстового файла в Listbox Python Tkkinter Sate: 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()
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