[Tkinter] Default Values for radiobuttons

[menator01]

Please use tags when posting code.
This works for me.

move the .place to radio_1.place() and radio_2.place()

import tkinter as tk

root = tk.Tk()

var = tk.IntVar()
r1 = tk.Radiobutton(root, text='Option 1', variable=var, value=1)
r1.pack(anchor='w')

r2 = tk.Radiobutton(root, text='Option 2', variable=var, value=2)
r2.pack(anchor='w')
r2.invoke()

r3 = tk.Radiobutton(root, text='Option 3', variable=var, value=3)
r3.pack(anchor='w')



root.mainloop()