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-rw-r--r--Lib/collections.py5
1 files changed, 2 insertions, 3 deletions
diff --git a/Lib/collections.py b/Lib/collections.py
index fb9464fa87..9381f51676 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -101,10 +101,9 @@ class OrderedDict(dict):
def __reduce__(self):
'Return state information for pickling'
items = [[k, self[k]] for k in self]
- tmp = self.__map, self.__root, self.__in_repr
- del self.__map, self.__root, self.__in_repr
inst_dict = vars(self).copy()
- self.__map, self.__root, self.__in_repr = tmp
+ for k in vars(self.__class__()):
+ inst_dict.pop(k, None)
if inst_dict:
return (self.__class__, (items,), inst_dict)
return self.__class__, (items,)