code: def find_handlers(event_name, registry=HANDLER_REGISTRY):
      
      handlers = []
  
      # event_name can be a BaseEvent or the string representation
      if isinstance(event_name, basestring):
          matched_events = [event for event in registry.keys()
              if fnmatch.fnmatchcase(event_name, event)]
          for matched_event in matched_events:
              handlers.extend(registry.get(matched_event))
      else:
          handlers = registry.get(find_event(event_name), [])
  
      return handlers
docs: Small helper to find all handlers associated to a given event
  
      If the event can't be found, an empty list will be returned, since
      this is an internal function and all validation against the event
      name and its existence was already performed.