From b8352e7253e61e24f6ba3f06cda6135a3c976884 Mon Sep 17 00:00:00 2001
From: Terry Jan Reedy <tjreedy@udel.edu>
Date: Wed, 23 Jul 2014 17:27:57 -0400
Subject: Issue #22053: Cleanup turtledemo start and stop and fix debug
 shutdown warning.

---
 Lib/turtledemo/__main__.py | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/Lib/turtledemo/__main__.py b/Lib/turtledemo/__main__.py
index 35b1651..0c151a3 100755
--- a/Lib/turtledemo/__main__.py
+++ b/Lib/turtledemo/__main__.py
@@ -252,27 +252,11 @@ class DemoWindow(object):
 
     def _destroy(self):
         self.root.destroy()
-        sys.exit()
 
 
-if __name__ == '__main__':
+def main():
     demo = DemoWindow()
-    RUN = True
-    while RUN:
-        try:
-            #print("ENTERING mainloop")
-            demo.root.mainloop()
-        except AttributeError:
-            #print("AttributeError!- WAIT A MOMENT!")
-            time.sleep(0.3)
-            print("GOING ON ..")
-            demo.ckearCanvas()
-        except TypeError:
-            demo.screen._delete("all")
-            #print("CRASH!!!- WAIT A MOMENT!")
-            time.sleep(0.3)
-            #print("GOING ON ..")
-            demo.clearCanvas()
-        except:
-            print("BYE!")
-            RUN = False
+    demo.root.mainloop()
+
+if __name__ == '__main__':
+    main()
-- 
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