获取使用BeautifulSoup属性值 [英] Getting attribute's value using BeautifulSoup

问题描述

我正在写一个python脚本从网页解析后，将提取的脚本的位置。
比方说，有两种情况：

I'm writing a python script which will extract the script locations after parsing from a webpage. Lets say there are two scenarios :

<script type="text/javascript" src="http://example.com/something.js"></script>

和

<script>some JS</script>

我能够从所述第二场景获取JS，即当JS在标签内写入。

I'm able to get the JS from the second scenario, that is when the JS is written within the tags.

但有什么办法，我可以从第一个方案中得到的src的值（即如的 http://example.com/something.js ）

But is there any way, I could get the value of src from the first scenario (i.e extracting all the values of src tags within script such as http://example.com/something.js)

下面是我的code

#!/usr/bin/python

import requests 
from bs4 import BeautifulSoup

r  = requests.get("http://rediff.com/")
data = r.text
soup = BeautifulSoup(data)
for n in soup.find_all('script'):
    print n 

输出：一些JS

输出所需： http://example.com/something.js

推荐答案

它会得到所有的的src 值仅当它们是present。否则，将跳过＆LT;脚本＆GT; 标签

It will get all the src values only if they are present. Or else it would skip that <script> tag

from bs4 import BeautifulSoup
import urllib2
url="http://rediff.com/"
page=urllib2.urlopen(url)
soup = BeautifulSoup(page.read())
sources=soup.findAll('script',{"src":True})
for source in sources:
 print source['src']

我得到以下两个的src 值结果

http://imworld.rediff.com/worldrediff/js_2_5/ws-global_hm_1.js
http://im.rediff.com/uim/common/realmedia_banner_1_5.js

我想这是你想要的。希望这是有益的。

I guess this is what you want. Hope this is useful.

这篇关于获取使用BeautifulSoup属性值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！