How to prevent python closing on red keypress

From Forum Nokia Wiki

The simple code snippet in PyS60 will help all developers to prevent python closing on a red keypress.

import sys, e32, appuifw
lock = e32.Ao_lock()
def myexitfunc():
    s = appuifw.app.screen
    appuifw.app.screen = 'large'
    appuifw.app.screen = s
    lock.wait()
sys.exitfunc = myexitfunc

Retrieved from "http://wiki.forum.nokia.com/index.php/How_to_prevent_python_closing_on_red_keypress"

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