commit c98556e72e3850532fb0801af4f6ca83e920fa54
author Raymond Hettinger <python@rcn.com> Tue Apr 19 16:53:07 2011 -0700
committer Raymond Hettinger <python@rcn.com> Tue Apr 19 16:53:07 2011 -0700
tree 8b4ad17b08808498f4fc9d68d77b14e2377c9ba8
parent b4923786fa7671d1bfeca5fc1692a11eb9beb488

Issue #11875: Alter the previous fix to work better with subclasses

Lib/collections.py

diff --git a/Lib/collections.py b/Lib/collections.py
index 83d928c..28a2abf 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -116,7 +116,7 @@
         'Return state information for pickling'
         items = [[k, self[k]] for k in self]
         inst_dict = vars(self).copy()
-        for k in vars(self.__class__()):
+        for k in vars(OrderedDict()):
             inst_dict.pop(k, None)
         if inst_dict:
             return (self.__class__, (items,), inst_dict)