python 获取html置顶标签文本信息

class MyParser(HTMLParser):
    def __init__(self,key):
        self.data=[]
        self.key=key
        self.falg=False
        self.linkname=''
        HTMLParser.__init__(self)
    def handle_starttag(self,tag,attrs):
        if self.key and tag ==self.key:
            self.falg=True
    def handle_data(self,data):
        if self.falg and data:
            self.data.append(unicode(eval(repr(data)),"utf-8"))
    def handle_endtag(self,tag):
        if self.key and tag ==self.key:
            self.falg=False
    def getresult(self):
        return self.data
    
def get_html_tagdata(data,tag):
    IParser = MyParser(tag)
    IParser.feed(data)
    result=IParser.getresult()
    IParser.close()
    return result