Index: Lib/mailbox.py
===================================================================
--- Lib/mailbox.py	(revision 63867)
+++ Lib/mailbox.py	(working copy)
@@ -910,7 +910,7 @@
                     _unlock_file(f)
         finally:
             f.close()
-        for name, key_list in self.get_sequences():
+        for name, key_list in self.get_sequences().iteritems():
             if key in key_list:
                 msg.add_sequence(name)
         return msg
@@ -1023,6 +1023,9 @@
         try:
             all_keys = set(self.keys())
             for line in f:
+                line = line.strip()
+                if not line:
+                    break
                 try:
                     name, contents = line.split(':')
                     keys = set()