gsearch.py 文件源码

def handle_starttag(self, tag, attrs):
        if tag == 'h3' and attrs == [('class', 'r')]:
            self.h3_flag = True

        if tag == 'a' and self.h3_flag:
            self.a_flag = True

        if tag == 'b' and self.a_flag:
            self.b_flag = True

        if self.a_flag:
            for (key, value) in attrs:
                if key == 'href':
                    if value.startswith("/url?"):
                        m = match('/url\?(url|q)=(.+?)&', value)
                        if m and len(m.groups()) == 2:
                            href = urllib2.unquote(m.group(2))
                            self.link = href
                    else:
                        self.link = value