From 7ea8f8404c8291563a77af1fd6acd7920d24b24e Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 25 Jun 1999 15:53:54 +0000
Subject: [PATCH] Break some cycles when the widget is destroyed.

---
 Lib/lib-tk/tkSimpleDialog.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
index 1e7ed4668cd..1830d66cbb7 100644
--- a/Lib/lib-tk/tkSimpleDialog.py
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -48,6 +48,10 @@ class Dialog(Toplevel):
 
         self.wait_window(self)
 
+    def destroy(self):
+        self.initial_focus = None
+        Toplevel.destroy(self)
+
     #
     # construction hooks
 
@@ -131,6 +135,10 @@ class _QueryDialog(Dialog):
 
         Dialog.__init__(self, parent, title)
 
+    def destroy(self):
+        self.entry = None
+        Dialog.destroy(self)
+
     def body(self, master):
 
         w = Label(master, text=self.prompt, justify=LEFT)