use add_global_handler on pubmsg/privmsg to learn from IRC.

this rather than inside do(), which could internal commands and stuff
that probably counts as noise

modules/MegaHAL.py

@@ -37,6 +37,9 @@ class MegaHAL(Module):
 
         Module.__init__(self, irc, config, server)
 
+        self.server.add_global_handler('pubmsg', self.learn_from_irc_event)
+        self.server.add_global_handler('privmsg', self.learn_from_irc_event)
+
         mh_python.initbrain()
 
     def save(self):
@@ -47,8 +50,13 @@ class MegaHAL(Module):
         """Sync the megahal brain."""
         mh_python.cleanup()
 
+    def learn_from_irc_event(self, connection, event):
+        """Learn text when an irc event happens."""
+        what = event.arguments()[0]
+        mh_python.learn(what)
+
     def do(self, connection, event, nick, userhost, what, admin_unlocked):
-        """Say something on IRC if the bot is being addressed, or at least learn what was said."""
+        """Say something on IRC if the bot is being addressed."""
 
         # i think this megahal module is corrupting the object while walking it,
         # so give it a stupid copy of the string. stupid stupid stupid.
@@ -66,8 +74,6 @@ class MegaHAL(Module):
             reply = mh_python.doreply(line)
         elif re.search('^!megahal$', line, re.IGNORECASE) is not None:
             reply = mh_python.doreply('')
-        else:
-            mh_python.learn(line)
 
         if reply is not "":
             if append_nick: