urllib2 vs requests

0_urllib2.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import urllib2

gh_url = 'https://api.github.com'

req = urllib2.Request(gh_url)

password_manager = urllib2.HTTPPasswordMgrWithDefaultRealm()
password_manager.add_password(None, gh_url, 'user', 'pass')

auth_manager = urllib2.HTTPBasicAuthHandler(password_manager)
opener = urllib2.build_opener(auth_manager)

urllib2.install_opener(opener)

handler = urllib2.urlopen(req)

print handler.getcode()
print handler.headers.getheader('content-type')

# ------
# 200
# 'application/json'

1_requests.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import requests

r = requests.get('https://api.github.com', auth=('user', 'pass'))

print r.status_code
print r.headers['content-type']

# ------
# 200
# 'application/json'

@source-creator wrote...

Unfortunately, code to format an url with requests is longer and more bloated than urllib:

# requests
from requests import Request
url = Request(None, 'http://example.com/?', params={'Data1': 'data'}).prepare().url

# urllib
import urllib
url = 'http://example.com/?' + urllib.parse.urlencode({'Data1': 'data'})

Just read this: https://stackoverflow.com/a/46783596
You can just use requests.utils (and other submodules, I've seen annother one for functions included in urllib.parse but I don't remember it) instead of urllib.parse in most cases I think.
(and it does not requires requests.utils to be imported because importing requests also imports requests.utils)
NOTE: The functions are comming right from the URLLIB package, so the actual documentation is in URLLIB for some (not all) of the function of this submodule of requests.