tkinter newbie question

[KP]

See my code below (which works). I'd like to have the 2nd window as a class in a separate unit. How do I code that unit and how do I call it from my first unit?

As always, thanks for all help!




#!/usr/bin/env python
"""
""" 
from tkinter import *
from settings import *

class window1():

    def open_window2(self):
        t = Toplevel(self.root)
        t.title('New window')
        t.geometry('262x65+200+250')
        t.transient(self.root)

    def setup_menu(self):
        self.menubar = Menu(self.root)
        self.menu1 = Menu(self.menubar, tearoff=0 ) 
        self.menu1.add_command(label="Settings",   accelerator='Ctrl+S', command=self.open_window2)
        self.menubar.add_cascade(label="Menu 1", menu=self.menu1)  
        self.root.config(menu=self.menubar)        

    def __init__(self):
        self.root = Tk()
        self.root.title('Window #1')
        self.setup_menu()
        self.root.geometry('800x600+200+200')
        #
        self.root.mainloop()

if __name__ == '__main__':
    
    w1 = window1()