gistfile1.py

    c = pycurl.Curl()

    url = 'https://api.twitter.com/oauth/access_token'
    url += '?x_auth_username=USER&x_auth_password=PASS&x_auth_mode=client_auth'

    #print url
    c.setopt(c.URL, str(url))

    c.setopt(c.POST, 1)
    form = CurlForm([])
    form.add_string("x_auth_mode", "client_auth")
    form.add_string("x_auth_password", "karamba")
    form.add_string("x_auth_username", "mlowicki")
    c.setopt(pycurl.HTTPPOST, form)

    headers = [
        "Authorization: " + str(req.META.get("HTTP_AUTHORIZATION")),
        "Expect: ",
        "Content-type: application/x-www-form-urlencoded",
    ]
    c.setopt(c.HTTPHEADER, headers)

    buffer = StringIO.StringIO()
    c.setopt(c.WRITEFUNCTION, buffer.write)
    c.setopt(c.FOLLOWLOCATION, 1)
    c.setopt(c.MAXREDIRS, 5)
    c.setopt(c.VERBOSE, 1)
    c.perform()