Python 3.x 我试图提取span_id中的文本，但使用python beautifulsoup获得空白输出

我试图提取span id标记内的文本，但得到的是空白输出屏幕

我也尝试过使用父元素div文本，但无法提取，请任何人帮助我。 下面是我的代码

 import requests
 from bs4 import BeautifulSoup

 r = requests.get('https://www.paperplatemakingmachines.com/')
 soup = BeautifulSoup(r.text,'lxml')
 mob = soup.find('span',{"id":"tollfree"})
 print(mob.text)

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我希望文本位于给定手机号码的范围内。

数据实际上是通过脚本动态呈现的。您需要做的是从脚本解析数据：

import requests
import re
from bs4 import BeautifulSoup

r = requests.get('https://www.paperplatemakingmachines.com/')
soup = BeautifulSoup(r.text,'lxml')
script= soup.find('script')
mob = re.search("(?<=pns_no = \")(.*)(?=\";)", script.text).group()
print(mob)

导入请求
进口稀土
从bs4导入BeautifulSoup
r=请求。获取（'https://www.paperplatemakingmachines.com/')
soup=BeautifulSoup（r.text，'lxml'）
script=soup.find（'script'）
mob=re.search（（？您必须使用Selenium，因为该文本在初始请求中不存在，或者在不搜索
标记的情况下至少不存在

from bs4 import BeautifulSoup as soup
from selenium import webdriver
import time

driver = webdriver.Chrome('C:\chromedriver_win32\chromedriver.exe')

url='https://www.paperplatemakingmachines.com/'
driver.get(url)

# It's better to use Selenium's WebDriverWait, but I'm still learning how to use that correctly
time.sleep(5)

soup = BeautifulSoup(driver.page_source, 'html.parser')
driver.close()

mob = soup.find('span',{"id":"tollfree"})
print(mob.text)

使用正则表达式查找数字的另一种方法

import requests
import re
from bs4 import BeautifulSoup as bs

r = requests.get('https://www.paperplatemakingmachines.com/',)
soup = bs(r.content, 'lxml')
r = re.compile(r'var pns_no = "(\d+)"')
data = soup.find('script', text=r).text
script = r.findall(data)[0]
print('+91-' + script)