无法从标记中检索HREF

Question

您好，我正在尝试从HTML页面检索第3个HREF标记。但是下面的代码不会返回任何结果。任何提示/答案是真的我试图解析useful.The网址如下：

http://pr4e.dr-chuck.com/tsugi/mod/python-data/data/known_by_Fikret.html

代码是这样的：

# This python code will parse an html and 
    # find href content from a particular position 

    import urllib 
    from BeautifulSoup import * 

    url = raw_input('Enter - ') 
    html = urllib.urlopen(url).read() 
    soup = BeautifulSoup(html) 

    # Retrieve all of the anchor tags 
    tags = soup('a',limit=3)[2] 
    for tag in tags: 
     print tag.get('href', None) 

Answer 1

使用

tags = soup('a', limit=3)[2] 

print tags.get('href', None) 

或删除[2]

tags = soup('a', limit=3) 

for tag in tags: 
    print tag.get('href', None)