diff -r 917295aaad76 Lib/cmd.py
--- a/Lib/cmd.py	Mon Jul 30 00:01:44 2012 +0200
+++ b/Lib/cmd.py	Sun Jul 29 23:16:25 2012 -0400
@@ -279,9 +279,27 @@
             return None
 
     def get_names(self):
-        # This method used to pull in base class attributes
-        # at a time dir() didn't do it yet.
-        return dir(self.__class__)
+        """Get completion candidates for commands and help topics.
+
+        By default this method returns all 'do_' prefixed methods as command
+        completion candidates, and all 'help_' prefixed methods as help topic
+        candidates.
+
+        :Returns: a list of zero or more valid command / help completions.
+        """
+
+        filter_fn = lambda name: ((name.startswith('do_') or
+                                   name.startswith('help_')) and
+                                   not name.endswith('EOF'))
+
+        # NOTE: use dir(self) so one can get all of the dynamic attributes
+        # associated with a given class, as dir(self.__class__) lists all of
+        # the static members defined in the class defintion.
+
+        # XXX: this really shouldn't have to be recalculated all the time as
+        #      most classes remain static.
+        return list(filter(filter_fn, dir(self)))
+
 
     def complete_help(self, *args):
         commands = set(self.completenames(*args))