Replace bsddb3 and _db occurrences.
diff --git a/Lib/bsddb/dbshelve.py b/Lib/bsddb/dbshelve.py
index ce4a466..ab63636 100644
--- a/Lib/bsddb/dbshelve.py
+++ b/Lib/bsddb/dbshelve.py
@@ -31,7 +31,7 @@
 #------------------------------------------------------------------------
 
 import cPickle
-from bsddb3 import db
+from bsddb import db
 
 #------------------------------------------------------------------------