From 019f424a0a88e97e3df2e83ea6b66aa50943702f Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Wed, 21 Aug 1996 14:54:28 +0000
Subject: More efficient handling of "__doc__" lookup.

---
 Objects/classobject.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Objects/classobject.c b/Objects/classobject.c
index d7be15a..5776898 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -43,8 +43,14 @@ newclassobject(bases, dict, name)
 #endif
 	classobject *op, *dummy;
 	static object *getattrstr, *setattrstr, *delattrstr;
-	if (dictlookup(dict, "__doc__") == NULL) {
-		if (dictinsert(dict, "__doc__", None) < 0)
+	static object *docstr;
+	if (docstr == NULL) {
+		docstr= newstringobject("__doc__");
+		if (docstr == NULL)
+			return NULL;
+	}
+	if (mappinglookup(dict, docstr) == NULL) {
+		if (mappinginsert(dict, docstr, None) < 0)
 			return NULL;
 	}
 	if (bases == NULL) {
-- 
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