TypeError: __init__() got an unexpected keyword argument 'auth'

[FaizalReza007]

Windows: 10
Python: 3.5

I m trying to make a post request using urllib.request and urllib.parse. I am using HTTPBasic Auth which is not right because I dont know what exactly to use for username and password in base64 so my Oracle Eloqua would understand it

import urllib.parse
import urllib.request
import base64
from requests.auth import HTTPBasicAuth
url = 'https://secure.p03.eloqua.com/API/REST/1.0/assets/contact/segment'
values = {
"name":"NewRestContactSegment"
}
data = urllib.parse.urlencode(values)
data = data.encode('UTF-8') # data should be bytes
req = urllib.request.Request(url, data, headers={"content-type":"application/json"}, auth=HTTPBasicAuth('companyname\xxx.xxx', 'xxxxx@123'))
resp = urllib.request.urlopen(req)
responseD = resp.read()
print (responseD)