diff -r b1b35583967a Lib/idlelib/PyShell.py
--- a/Lib/idlelib/PyShell.py	Thu Dec 22 09:10:47 2011 +0200
+++ b/Lib/idlelib/PyShell.py	Thu Dec 22 13:09:15 2011 -0600
@@ -950,10 +950,6 @@
             self.top.quit()
         self.canceled = True
         self.closing = True
-        # Wait for poll_subprocess() rescheduling to stop
-        self.text.after(2 * self.pollinterval, self.close2)
-
-    def close2(self):
         return EditorWindow.close(self)
 
     def _close(self):