diff -r 183386082eba Lib/collections/__init__.py
--- a/Lib/collections/__init__.py	Sat Nov 14 01:29:17 2015 +0000
+++ b/Lib/collections/__init__.py	Sat Nov 14 10:02:21 2015 +0200
@@ -275,10 +275,11 @@ class OrderedDict(dict):
 
 
 try:
+    _OrderedDict = OrderedDict
     from _collections import OrderedDict
 except ImportError:
     # Leave the pure Python version in place.
-    pass
+    del _OrderedDict
 
 
 ################################################################################