Error in a minimal tkSimpleDialog example

Question

I was trying out a python code example at Rosetta Code - a programming chrestomathy site, where solutions to the same task are presented in as many different programming languag

Answer 1

The error message is telling you that the dialog needs a parent window.

With Python 2.x, you create the root window with:

import tkinter
from tkinter import simpledialog
root = tkinter.Tk()

To hide the root window if you don't want it, use:

root.withdraw()

See the Python Tkinter Docs for more info.