Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/pymsn/switchboard_manager.py", line 365, in _sb_message_received
    handler._on_message_received(message)
  File "/usr/lib/python2.5/site-packages/pymsn/conversation.py", line 374, in _on_message_received
    self._dispatch("on_conversation_nudge_received", sender)
  File "/usr/lib/python2.5/site-packages/pymsn/event/__init__.py", line 44, in _dispatch
    if event_handler._dispatch_event(name, *args):
  File "/usr/lib/python2.5/site-packages/pymsn/event/__init__.py", line 65, in _dispatch_event
    handler(*params)
  File "/usr/lib/python2.5/site-packages/butterfly/channel/text.py", line 121, in on_conversation_nudge_received
    text = unicode(_("sends you a nudge"), "utf-8")
NameError: global name '_' is not defined