From dac444703d1b7022bf3c2307af9232775bf6f2d9 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Thu, 14 Aug 1997 19:49:27 +0000
Subject: Add try-finally around main loop.

---
 Demo/tkinter/guido/electrons.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Demo/tkinter/guido/electrons.py b/Demo/tkinter/guido/electrons.py
index f3b8008..d764380 100755
--- a/Demo/tkinter/guido/electrons.py
+++ b/Demo/tkinter/guido/electrons.py
@@ -52,8 +52,11 @@ class Electrons:
 
 	# Run -- never returns
 	def run(self):
-		while 1:
-			self.random_move(self.n)
+		try:
+			while 1:
+				self.random_move(self.n)
+		finally:
+			self.tk.destroy()
 
 
 # Main program
-- 
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