How to copy items in a listbox to another in a different frame-CodePudding

I'm trying to take all the items from a listbox and move them to another listbox in another frame. I tried this but listbox2 wont update when listbox1 is changed.

for i in range(listbox1.size()):
    listbox2.insert(i, (listbox2.get(i)))

CodePudding user response：

If you just want to synchronize the content of the two listboxes, set the listvariable option of the two listboxes to the same StringVar():

import tkinter as tk

...
var1 = tk.StringVar()

listbox1 = tk.Listbox(..., listvariable=var1)
...
listbox2 = tk.Listbox(..., listvariable=var1)
...