No input possible after tk

Question

If have this piece of code:

import Tkinter as tk
import tkFileDialog

menu = tk.Tk()
res = tkFileDialog.askopenfilename() # un-/comment this line
label = tk.Labe         


        

Answer 1

askopenfilenamehas it's own event loop. The programm stops, until you selected a filename, and continues afterwards.