How could i make a blinking text on Listbox
item
import tkinter
window = tkinter.Tk()
ncbox = tkinter.Listbox(window, width=14, height=7, fg="blue", font=("Helvetica", 20))
ncbox.grid(row=2, column=2,columnspan=4,sticky=NW)
ncbox.insert("apple")
ncbox.insert("banana")
ncbox.insert("grape")
Now i want to blink apple on the listbox. how to do that?