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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_lobbies(session, game_id):
 """Get lobbies for a game."""

    if isinstance(game_id, str):
        game_id = lookup_game_id(game_id)
    lobbies = _make_request(session, LOBBY_URL, game_id)
    for lobby in lobbies:
        # pylint: disable=len-as-condition
        if len(lobby['ladders']) > 0:
            lobby['ladders'] = lobby['ladders'][:-1].split('|')
    return lobbies