Part of SF patch #1513870 (the still relevant part) -- add reduce() to
functools, and adjust docs etc.
diff --git a/Lib/functools.py b/Lib/functools.py
index 8783f08..12a527e 100644
--- a/Lib/functools.py
+++ b/Lib/functools.py
@@ -7,7 +7,7 @@
# Copyright (C) 2006 Python Software Foundation.
# See C source code for _functools credits/copyright
-from _functools import partial
+from _functools import partial, reduce
# update_wrapper() and wraps() are tools to help write
# wrapper functions that can handle naive introspection