SF patch #941881:  PEP 309 Implementation (Partial Function Application).

Combined efforts of many including Peter Harris, Hye-Shik Chang,
Martin v. Löwis, Nick Coghlan, Paul Moore, and Raymond Hettinger.
diff --git a/setup.py b/setup.py
index 9b41f4c..85322a8 100644
--- a/setup.py
+++ b/setup.py
@@ -355,6 +355,8 @@
         exts.append( Extension("_heapq", ["_heapqmodule.c"]) )
         # operator.add() and similar goodies
         exts.append( Extension('operator', ['operator.c']) )
+        # functional
+        exts.append( Extension("functional", ["functionalmodule.c"]) )
         # Python C API test module
         exts.append( Extension('_testcapi', ['_testcapimodule.c']) )
         # static Unicode character database