On 2/29/2012 10:22 PM, Rick Johnson wrote:
I do not know what book the OP is referring to,
but the current doc example is
http://docs.python.org/py3k/library/tkinter.html#a-simple-hello-world-program
My current replacement (see below) can be downloaded from the tracker:
http://bugs.python.org/issue14163

If you want to keep things simple, i would:

  1. Create the root window explicitly!

It already does that.

  2. Bind the command of the button to root.destroy
(command=root.destroy)

That works great. My current replacement example is uploaded to the issue http://bugs.python.org/issue14163

PS: I would highly suggest against using the "from Tkinter import *".
Instead, use "import Tkinter as tk" and prefix all module contents
with "tk.".

I have changed the example to do that. I also showed the alternate to initialize a widget. Here is the current version, tested on Windows 3.2.2.

import tkinter as tk

class Application(tk.Frame):
    def __init__(self, master=None):
        tk.Frame.__init__(self, master)
        self.pack()
        self.createWidgets()

    def createWidgets(self):
        self.hi_there = tk.Button(self)
        self.hi_there["text"] = "Hello_World\n(click_me)",
        self.hi_there["command"] = self.say_hi
        self.hi_there.pack({"side": "top"})

self.QUIT = tk.Button(self, text = "QUIT", fg = "red", command = root.destroy)
        self.QUIT.pack({"side": "bottom"})

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

root = tk.Tk()
app = Application(master=root)
app.mainloop()

There is a minor problem left. The hi_there Button text has underscores because if I use spaces instead, tk surrounds the text with {bra ces}. This seems bizarre. Is there any way to have Button text with spaces and no braces?

--
Terry Jan Reedy

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