.

wcfs/internal/xbtree.py

@@ -195,7 +195,7 @@ class Bucket(object):
     __repr__ = __str__
 
     def copy(b):
-        return Bucket(*b.keyv)
+        return Bucket(b.keyv, b.valuev)
 
 
 # StructureOf returns internal structure of a ZODB BTree.