# This is displayed when a player looks at the room.
    def return_appearance(self, looker, **kwargs):

        if not looker:
            return ''

        string = ''

        # Cache the looker's screen width.
        len = looker.screenwidth

        # Note: I want the looker to be the first player in the list so I remove them
        # from the contents list and add them manually to 'players', but only
        # if they're not doing a remote look.
        visible = (con for con in self.contents if con != looker and con.access(looker, "view"))
        exits, players, things, views = [], [], [], []

        if looker.location is self:
            players = [looker]


        # Filter the visible objects into lists based on their type.
        for con in visible:
            if con.destination:
                exits.append(con)
            elif con.has_account:
                if con.sessions > 0:
                    players.append(con)
            else:
                things.append(con)

        # Start with the name of the room.
        string += self.format_name(len)
        # Add the description.
        string += self.format_desc(len)
        #string += utils.subheader('', len, nonewline=True)
        # Add players if there are any.
        if players:
            string += self.format_players(len, players, looker)
        # Add non-player things if there are any.
        if things:
            string += self.format_contents(len, things)
        # Add exits if there are any.
        if exits:
            string += self.format_exits(len, exits)

        # Add footer.
        string += self.format_footer(len)

        # Return the formatted string.
        return string