gistfile1.py

from urllib import request

url = 'http://google.com'

req = request.Request(url)

print(req.__dict__)

# reqDict это собственно это req.__dict__
reqDict = {'_full_url': 'http://google.com', 'fragment': None, 'type': 'http', 'host': 'google.com', 'selector': '', 'headers': {}, 'unredirected_hdrs': {}, '_data': None, '_tunnel_host': None, 'origin_req_host': 'google.com', 'unverifiable': False}

res = request.urlopen(reqDict)

print(res)