Возможно, вам потребуется указать больше заголовков, попробуйте это:
import urllib.request
url = "https://www.fragrantica.com/perfume/Tom-Ford/Tobacco-Vanille-1825.html"
headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.4 Safari/605.1.15',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
'Accept-Encoding': 'none',
'Accept-Language': 'en-US,en;q=0.8',
'Connection': 'keep-alive'}
request=urllib.request.Request(url=url, headers=headers) #The assembled request
response = urllib.request.urlopen(request)
data = response.read() # The data u need