[Tkinter] list box select event triggers when selecting another listbox

[Roshan]

Hi !

I have 2 list box.

i have attached event with both list box.

but after 1st click in both list box, when i click any list box both event triggered.

can some one have any idea

here is event code & declaring of both list box

import tkinter as tk

root = tk.Tk()
label = tk.Label(root)

listbox = tk.Listbox(root)
listbox1 = tk.Listbox(root)

label.pack(side="bottom", fill="x")

listbox.pack(side="top", fill="both", expand=True)
listbox1.pack(side="bottom", fill="both", expand=True)

listbox.insert("end", "one", "two", "three", "four", "five")
listbox1.insert("end", "one", "two", "three", "four", "five")

def callback(event):
    print("1")

def callback1(event1):
    print("2")

listbox.bind("<<ListboxSelect>>", callback)
listbox1.bind("<<ListboxSelect>>", callback1)

root.mainloop()

[Yoriz]

An empty selection is being triggered when changing another listbox.
Issue30200: tkinter ListboxSelect
You can add a check for the current selection in the event handler and return if it is empty.

import tkinter as tk
 
root = tk.Tk()
label = tk.Label(root)
 
listbox = tk.Listbox(root)
listbox1 = tk.Listbox(root)
 
label.pack(side="bottom", fill="x")
 
listbox.pack(side="top", fill="both", expand=True)
listbox1.pack(side="bottom", fill="both", expand=True)
 
listbox.insert("end", "one", "two", "three", "four", "five")
listbox1.insert("end", "one", "two", "three", "four", "five")
 
def callback(event):
    if not event.widget.curselection():
        return
    print("1")
 
def callback1(event1):
    if not event1.widget.curselection():
        return
    print("2")

listbox.bind("<<ListboxSelect>>", callback)
listbox1.bind("<<ListboxSelect>>", callback1)

root.mainloop()