We have two of the exact same backported file. Get rid of one. Also, handle the except if we can't import so we don't get stacktraces. (Currently the three functions affected are not used.)

utils/compat.py

@@ -9,7 +9,7 @@ except ImportError:
 try:
     from _abcoll import KeysView, ValuesView, ItemsView
 except ImportError:
-    pass
+    KeysView = ValuesView = ItemsView = None
 
 
 class OrderedDict(dict):
@@ -250,12 +250,21 @@ class OrderedDict(dict):
 
     def viewkeys(self):
         "od.viewkeys() -> a set-like object providing a view on od's keys"
-        return KeysView(self)
+        if KeysView:
+            return KeysView(self)
+        else:
+            return None
 
     def viewvalues(self):
         "od.viewvalues() -> an object providing a view on od's values"
-        return ValuesView(self)
+        if ValuesView:
+            return ValuesView(self)
+        else:
+            return None
 
     def viewitems(self):
         "od.viewitems() -> a set-like object providing a view on od's items"
-        return ItemsView(self)
+        if ItemsView:
+            return ItemsView(self)
+        else:
+            return None