用Python篡改道瓊斯指數的雅虎財經

Question

我正試圖用雅虎金融與美麗的湯羹在Python中颳去道瓊斯股票指數。

這是我曾嘗試：

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 

下面是來自谷歌的鍍鉻元素檢查：

如何，我只颳去跨度標籤17,555.47多少？

Answer 1

只需使用find，確實很容易，就像這樣：

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'