Tkinter program crashes

[srijit at yahoo.com]

Hello,

Any idea - why the following code crashes on my Win 98 machine with
Python 2.3? Everytime I run this code, I have to reboot my machine.
I also have Win32all-157 installed.

from Tkinter import *

class App:

    def __init__(self, master):

        frame = Frame(master)
        frame.pack()

        self.button = Button(
            frame, text="QUIT", fg="red", command=frame.quit
            )
        self.button.pack(side=LEFT)

        self.hi_there = Button(frame, text="Hello",
command=self.say_hi)
        self.hi_there.pack(side=LEFT)

    def say_hi(self):
        print "hi there, everyone!"

root = Tk()

app = App(root)

root.mainloop()


Regards,
Srijit