Python Script to extract Sector and Industry for a company stock listed on Google Finance

GFinSectorIndustryBasic.py

from urllib import urlopen
from lxml.html import parse

'''
Returns a tuple (Sector, Indistry)
Usage: GFinSectorIndustry('IBM')
'''
def GFinSectorIndustry(name):
  tree = parse(urlopen('http://www.google.com/finance?&q='+name))
  return tree.xpath("//a[@id='sector']")[0].text, tree.xpath("//a[@id='sector']")[0].getnext().text

Nice function. I am trying to implement it in python --version 3.8 and I got to this point:

from urllib.request import Request, urlopen
from lxml.html import parse

name="IBM"
req = Request('http://www.google.com/finance?&q='+name, headers={'User-Agent': 'Mozilla/5.0'})
webpage = urlopen(req)

tree = parse(webpage)

However the following line is not working and I have not been able to figured out why:

tree.xpath("//a[@id='sector']")[0].text, tree.xpath("//a[@id='sector']")[0].getnext().text

Do you have any ideas or suggestions?

Hello.
Go to web page. On MS Window's browser (Chrome). Mous right click on desireble element in web page and then "Inspect" => browser showd HTML script and selects element that you have clicked. Right click on selected item and chose simple XPath.
I recomend to find in google tutorial of XPath