class Tag(list):

def __init__(self, *args, **kwargs):

    super(Tag, self).__init__(args)

    self.attr = self.Attr(**kwargs) 

def unicode(self, indent=2):

    from py.__.xmlobj.visit import SimpleUnicodeVisitor 

    l = []

    SimpleUnicodeVisitor(l.append, indent).visit(self) 

    return u"".join(l) 

def __repr__(self):

    name = self.__class__.__name__ 

    return "<%r tag object %d>" % (name, id(self))

def __unicode__(self):

    return self.unicode(indent=0)