用Python篡改道琼斯指数的雅虎财经

Question

我正试图用雅虎金融与美丽的汤羹在Python中刮去道琼斯股票指数。

这是我曾尝试：

from bs4 import BeautifulSoup 

myurl = "http://finance.yahoo.com/q/cp?s=^DJI" 
soup = BeautifulSoup(html) 

for item in soup: 
    date = row.find('span', 'time_rtq_ticker').text.strip() 
    print date 

下面是来自谷歌的镀铬元素检查：

如何，我只刮去跨度标签17,555.47多少？

Answer 1

只需使用find，确实很容易，就像这样：

from bs4 import BeautifulSoup 
import requests 

myurl = "http://finance.yahoo.com/q/cp?s=^DJI" 
# I use requests to get the html content 
html = requests.get(myurl).content 
soup = BeautifulSoup(html) 

# you don't need to iterate the children, just use find 
# and you need to use attrs { key: value }, not just 'time_rtq_ticker' 
soup.find('span', attrs={'class':'time_rtq_ticker'}).text 
u'17,554.47'