Index: poplib.py
===================================================================
--- poplib.py	(revision 74276)
+++ poplib.py	(working copy)
@@ -282,7 +282,7 @@
 
         NB: mailbox is locked by server from here to 'quit()'
         """
-        secret = bytes(secret, self.encoding)
+        secret = bytes(password, self.encoding)
         m = self.timestamp.match(self.welcome)
         if not m:
             raise error_proto('-ERR APOP not supported by server')