From a6d0e9765a312f15d47ccea9bc0ac431020e5a87 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Sat, 12 Mar 2011 06:29:31 +0000
Subject: [PATCH] protect from self-modifying callbacks

---
 direct/src/showbase/ShowBase.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/direct/src/showbase/ShowBase.py b/direct/src/showbase/ShowBase.py
index 12114fd488..619fba962d 100644
--- a/direct/src/showbase/ShowBase.py
+++ b/direct/src/showbase/ShowBase.py
@@ -432,7 +432,7 @@ class ShowBase(DirectObject.DirectObject):
 
         This function is designed to be safe to call multiple times."""
 
-        for cb in self.finalExitCallbacks:
+        for cb in self.finalExitCallbacks[:]:
             cb()
 
         # [gjeon] restore sticky key settings