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Sun Apr 1 10:50:16 EDT 2001 · http://mail.python.org/pipermail/python-list/2001-April/103893.html

Thanks David. That seems to work. I still have a "sys.exit(0)"
following the "root.destroy()" because the root=Tk() is inside the
application class __init__ definition. So I guess the sequence

Create application class
  Create Tk root
    Run app
  Destroy Tk root
Exit the application class

sorta makes sense.

On Sat, 31 Mar 2001 21:56:32 GMT, "David Allen" <mda at idatar.com>
wrote:

>In article <dktbct8ul4jmbnlh4h6acplkauofdh5tup at 4ax.com>, "David Fuess"
><fuess at att.net> wrote:
>
>> I am building Tkinter applications on W2K using ActivePython2.0 and Tcl
>> 8.3.2 with Pmw wigets. The problem is that if I try to exit the program
>> using a button handler I get an error. I have tried both
>> 'sys.exit(0)' and 'root.quit()' in the button handler. In both cases I
>> often get the error:
>> 
>> pythonw.exe - Application Error, The instruction at "0x01744727" referenced
>> memory at "0x00000000". The memory could not be "read".
>> 
>> This never happens if I close the application using the X in the window
>> decorations.
>> 
>> Dave
>
>Much easier is simply this:
>
>toplevelwidget.destroy()

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Problem stopping Tkinter apps