Random number generator in Python core

Objects/object.c

--- a/Objects/object.c	Fri Dec 30 21:26:08 2011 +0100
+++ b/Objects/object.c	Tue Jan 03 21:48:43 2012 +0100
@@ -759,7 +759,7 @@
     Py_uhash_t x;
     Py_ssize_t i;
 
-    x = (Py_uhash_t) *p << 7;
+    x = Py_RndHashSeed + ((Py_uhash_t) *p << 7);

[gregory.p.smith, 2012/01/15 02:18:38]

Use ^ instead of +.

     for (i = 0; i < len; i++)
         x = (1000003U * x) ^ (Py_uhash_t) *p++;
     x ^= (Py_uhash_t) len;