Dim postData As String
Dim myHttp2 As WinHttp.WinHttpRequest

'postData is the form data sent in the request body that contains a users login credentials

postData = "SMNC-ISO&LOC=US&target=HTTPS%3AIntranetSite.net&postpreservationdata=&USER=usr123&PASSWORD=pwd123"

set myHttp2 = CreateObject("winHTTP.WinHTTPrequest.5.1")
myHttp2.Open "GET", "https://login.someintranetsite.net", true

myHttp2.setRequestHeader "Request", "GET /abcd123/4567 HTTP/1.1"
myHttp2.setRequestHeader "Accept", "stuff"
myHttp2.setRequestHeader "Accept-Language", "en-US"
myHttp2.setRequestHeader "User-Agent", "stuff"
myHttp2.setRequestHeader "Accept-Encoding", "stuff"
myHttp2.setRequestHeader "Host", "login.someintranetsite.net"

myHttp2.send postData
myHttp2.WaitForResponse

Debug.Print myHttp2.responseText

'obtains the session cookie needed for other requests not shown here
cookie = myHttp2.getResponseHeader("Set-Cookie")

from bs4 import BeautifulSoup
import requests



payload = 'SMNC-ISO&LOC=US&target=HTTPS%3AIntranetSite.net&postpreservationdata=&USER=usr123&PASSWORD=pwd123'

headers = {'Request':   'GET /abcd123/4567 HTTP/1.1',
           'Accept' :  'stuff',
           'Accept-Language':  'en-US',
           'Connection':  'stuff',
           'Host':  'someintranetsite.net',
           'User-Agent': 'stuff',
           'Accept-Encoding':  'stuff'
           }

result = requests.get(url="https://login.someintranetsite.net", headers=headers, data=payload)

print result.content

File "C:Program Files (x86)Anacondalibsite-packagesrequestsapi.py", line 55, in get
return request('get', url, **kwargs)

File "C:Program Files (x86)Anacondalibsite-packagesrequestsapi.py", line 44, in request
return session.request(method=method, url=url, **kwargs)

File "C:Program Files (x86)Anacondalibsite-packagesrequestssessions.py", line 456, in request
resp = self.send(prep, **send_kwargs)

File "C:Program Files (x86)Anacondalibsite-packagesrequestssessions.py", line 559, in send
r = adapter.send(request, **kwargs)

File "C:Program Files (x86)Anacondalibsite-packagesrequestsadapters.py", line 378, in send
raise ProxyError(e)

ProxyError: ('Cannot connect to proxy.', error(10061, 'No connection could be made because the target machine actively refused it'))