ehp.py 文件源码

def take(self, *args):
        """
        It returns the first object whose one of its
        attributes matches (key0, value0), (key1, value1), ... .

        Example:

        data = '<a><b id="foo" size="1"></b></a>'
        html = Html()
        dom = html.feed(data)

        print dom.take(('id', 'foo'))
        print dom.take(('id', 'foo'), ('size', '2'))
        """

        seq = self.match(*args)

        try:
            item = seq.next()
        except StopIteration:
            return None
        else:
            return item