From 38507ae614b2b5ef4a888e3b94a3707576021291 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Sat, 11 Aug 2001 04:37:07 +0000
Subject: Finally fix SF bug #441172, using a variant of patch ##443626:
 canceling an edit operation would not revert the value of the field. The fix
 takes care to destroy the Entry object, as suggested in the patch.

---
 Tools/idle/TreeWidget.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Tools/idle/TreeWidget.py b/Tools/idle/TreeWidget.py
index 60eefdc..be80a63 100644
--- a/Tools/idle/TreeWidget.py
+++ b/Tools/idle/TreeWidget.py
@@ -291,6 +291,12 @@ class TreeNode:
         self.canvas.focus_set()
 
     def edit_cancel(self, event=None):
+        try:
+            entry = self.entry
+            del self.entry
+        except AttributeError:
+            return
+        entry.destroy()
         self.drawtext()
         self.canvas.focus_set()
 
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