From 36b9f7908a168957d151595817b2c06a2fcb9a40 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 14 Feb 1997 16:29:22 +0000
Subject: [PATCH] Slight tweak: in string_hash(), if the hash hasn't been
 computed yet, and if there's a pointer to an interned version of the string,
 use its hash and store its hash in this object, rather than recomputing it.

---
 Objects/stringobject.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index 283e219d34a..724121f0b11 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -433,6 +433,11 @@ string_hash(a)
 #ifdef CACHE_HASH
 	if (a->ob_shash != -1)
 		return a->ob_shash;
+#ifdef INTERN_STRINGS
+	if (a->ob_sinterned != NULL)
+		return (a->ob_shash =
+			((stringobject *)(a->ob_sinterned))->ob_shash);
+#endif
 #endif
 	len = a->ob_size;
 	p = (unsigned char *) a->ob_sval;