CODEWITHSUNDEEP
pythonpython-3.xtkinterlistbox
Thomas Caio
Thomas Caio

Reputation: 81

Python tkinter listbox getting index

I'm inserting some data into listbox and when I try to read that placed in index, the program is returning a consecutive numbers like 0,1,2,3 as index and not the id used in lb.insert.

import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.geometry('300x200')
lb = tk.Listbox(root)
lb.insert(5,'data1')
lb.insert(8,'data2')
lb.insert(13,'data3')
lb.insert(55,'data4')
lb.insert(21,'data5')
but = ttk.Button(root,text='command',command=lambda:ReadIndex())
lb.pack()
but.pack()
def ReadIndex():
    index = lb.index(lb.curselection())
    print(index)

How can i get the index that wrote in .insert?

Upvotes: 1

Views: 2108

Answers (1)

Bryan Oakley
Bryan Oakley

Reputation: 385890

How can i get the index that wrote in .insert?

You can't.

The "id" that you think you're giving isn't an id, it's an index. And if the index is larger than the last index, it's ignored and the item is placed at the end.

In other words, when you do this:

lb.insert(5,'data1')
lb.insert(8,'data2')

Then 'data1 will be inserted at index 0 (zero), and 'data2' will be inserted at index 1 (one). There is no way to retrieve the original values 5 and 8.

Upvotes: 3

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