From e5920bc4c67ca8c12b3dd87b1047e144c2f3b3c3 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Mon, 26 Aug 1996 14:58:03 +0000
Subject: [PATCH] Use getstringsize where available instead of strlen.

---
 Objects/classobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Objects/classobject.c b/Objects/classobject.c
index 191b5568c0e..9b12d1876a8 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -550,7 +550,7 @@ instance_setattr(inst, name, v)
 	if (sname[0] == '_' && sname[1] == '_'
 	    && (strcmp(sname, "__dict__") == 0 ||
 		strcmp(sname, "__class__") == 0)) {
-	        int n = strlen(sname);
+	        int n = getstringsize(name);
 		if (sname[n-1] == '_' && sname[n-2] == '_') {
 			err_setstr(TypeError, "read-only special attribute");
 			return -1;