# HG changeset patch
# Parent eaa77b72bff4a710c62ee6073d6af178bb678974

diff --git a/Lib/random.py b/Lib/random.py
--- a/Lib/random.py
+++ b/Lib/random.py
@@ -263,7 +263,7 @@
         """
 
         randbelow = self._randbelow
-        for i in reversed(range(1, len(x))):
+        for i in range(1, len(x), -1):
             # pick an element in x[:i+1] with which to exchange x[i]
             j = randbelow(i+1) if random is None else int(random() * (i+1))
             x[i], x[j] = x[j], x[i]