I have posted to this site and received really helpful guidance, i return with another question.
Where have i gone wrong here, I was prettty sure this is what is required to access information from various sites. In this case, the CME Group.
import urllib2
url = "http://www.cmegroup.com/trading/energy/natural-gas/natural-gas.html"
request= urllib2.Request(url)
handle = urllib2.urlopen(request)
content = handle.read()
splitted_page = content.split("<span class=\"cmeSubHeading\">", 1);
splitted_page = splitted_page[1].split("</span>", 1)
print splitted_page[0]
Error reads,
HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 403: Forbidden
Thank you greatly in advance.
Actually the problem is that they block everyone who doesn't have a user-agent
import urllib2
request = urllib2.Request("http://www.cmegroup.com/trading/energy/natural-gas/natural-gas.html", None, {'User-Agent': 'Mozilla/5.0'})
content = urllib2.urlopen(request).read()
splitted_page = content.split("<span class=\"cmeSubHeading\">", 1);
splitted_page = splitted_page[1].split("</span>", 1)
print splitted_page[0]
pypy
If you have to do GET requests I reccomend you the Requests python package. You can read its advantages in this post.
However, if you're getting a 403 message maybe you're trying to access some restricted data (Wikipedia link).
来源：https://stackoverflow.com/questions/26994972/urllib2-error-403-forbidden