使用美丽汤和选择器检索内容

Question

正在尝试检索嵌入在html中的内容(文本(。 无法获取内容。

尝试使用格式的选择器来查找price_box：
price_box = soup2.find('div', attrs={'title class': 'Fw(600)'})

# Import libraries
import requests
import urllib.request
import time
from bs4 import BeautifulSoup
# Set the URL you want to webscrape from
url = 'https://finance.yahoo.com/quote/NVDA?p=NVDA'
# Connect to the URL
response = requests.get(url)
# Parse HTML and save to BeautifulSoup object¶
soup = BeautifulSoup(response.text, "html.parser")
beta = soup.find('h1')
#print (beta)
link = beta.contents
variable = 'NVDA - NVIDIA Corporation'
test = 'NVDA - NVIDIA Corporation'
#<..>
url2 = 'https://finance.yahoo.com/calendar/earnings?from=2019-09-01&to=2019-09-07&day=2019-09-01'
response2 = requests.get(url2)
soup2 = BeautifulSoup(response2.text, "html.parser")
# alpha = soup2.find('')
# div = soup.find('a', {class_ ='D(ib) '})
# text = div.string
price_box = soup2.find('div', attrs={'title class': 'Fw(600)'})
#price = price_box.text
print("Price Box: "+ str(price_box)) # THIS IS WHAT I WANT

希望看到"塞尼亚"。 而是看到"无"-"价格框： 没有">

Answer 1

很多内容都是动态的。您可以轻松更正该信息

import requests, re
p = re.compile(r'"YFINANCE:(.*?)"')
r = requests.get('https://finance.yahoo.com/calendar/earnings?from=2019-09-01&to=2019-09-07&day=2019-09-01&guccounter=1')
print(p.findall(r.text)[0])

另一种方法是完全避免动态外观类

import requests
from bs4 import BeautifulSoup as bs
r = requests.get('https://finance.yahoo.com/calendar/earnings?from=2019-09-01&to=2019-09-07&day=2019-09-01&guccounter=1')
soup = bs(r.content, 'lxml')
print(soup.select_one('#cal-res-table a').text)

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读数：

1. CSS 选择器