From f1cca2b59367c738a18617e4c4552f208ac8f5c2 Mon Sep 17 00:00:00 2001
From: Raymond Hettinger <python@rcn.com>
Date: Tue, 4 Mar 2008 22:29:44 +0000
Subject: Fix refleak in chain().

---
 Modules/itertoolsmodule.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 76c8484..d8e14d0 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -1682,8 +1682,8 @@ chain_next(chainobject *lz)
 			return NULL;			/* no more input sources */
 		}
 		lz->active = PyObject_GetIter(iterable);
+		Py_DECREF(iterable);
 		if (lz->active == NULL) {
-			Py_DECREF(iterable);
 			Py_CLEAR(lz->source);
 			return NULL;			/* input not iterable */
 		}
-- 
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