Index: Lib/collections.py
===================================================================
--- Lib/collections.py	(revision 63766)
+++ Lib/collections.py	(working copy)
@@ -70,6 +70,8 @@
         _fields = %(field_names)r \n
         def __new__(cls, %(argtxt)s):
             return tuple.__new__(cls, (%(argtxt)s)) \n
+        def __getnewargs__(self):
+            return tuple.__getnewargs__(self)[0] \n
         @classmethod
         def _make(cls, iterable, new=tuple.__new__, len=len):
             'Make a new %(typename)s object from a sequence or iterable'