How to disable automatic redirects in python3 urllib.request?

The library "requests" makes it easier, but if you need or want to use urllib.request, this works:

from urllib import request
import urllib.error

class NoRedirect(request.HTTPRedirectHandler):
    def redirect_request(self, req, fp, code, msg, headers, newurl):
        return None


opener = request.build_opener(NoRedirect)
request.install_opener(opener)

try:
    r = request.urlopen('http://google.com')
except urllib.error.HTTPError as e:
    r = e

print(r.status)
print(dir(r))