How to download a file over http with authorization in python 3.0, working around bugs?

Question

I have a script that I\'d like to continue using, but it looks like I either have to find some workaround for a bug in Python 3, or downgrade back to 2.6, and thus having to

Answer 1

Direct from the Py3k docs: http://docs.python.org/dev/py3k/library/urllib.request.html#examples

import urllib.request
# Create an OpenerDirector with support for Basic HTTP Authentication...
auth_handler = urllib.request.HTTPBasicAuthHandler()
auth_handler.add_password(realm='PDQ Application',
                          uri='https://mahler:8092/site-updates.py',
                          user='klem',
                          passwd='kadidd!ehopper')
opener = urllib.request.build_opener(auth_handler)
# ...and install it globally so it can be used with urlopen.
urllib.request.install_opener(opener)
urllib.request.urlopen('http://www.example.com/login.html')

Answer 2

My advice would be to maintain your 2.* branch as your production branch until you can get the 3.0 stuff sorted.

I am going to wait a while before moving over to Python 3.0. There seems a lot of people in a rush, but I just want everything sorted out, and a decent selection of third-party libraries. This may take a year, it may take 18 months, but the pressure to "upgrade" is really low for me.