import requests
from selenium import webdriver

Password = 'YOURPASS'
Username = 'YOURUSERNAME'

browser = webdriver.Chrome(os.getcwd()+"/"+"Chromedriver.exe")
browser.get('https://www.bet365affiliates.com/ui/pages/affiliates/Affiliates.aspx')
VIEWSTATE=browser.find_element_by_xpath('//*[@id="__VIEWSTATE"]')
SESSIONID=browser.find_element_by_xpath('//*[@id="CMSessionId"]')
PREVPAG=browser.find_element_by_xpath('//*[@id="__PREVIOUSPAGE"]')
EVENTVALIDATION=browser.find_element_by_xpath('//* [@id="__EVENTVALIDATION"]')
cookies = browser.get_cookies()

session = requests.session()
for cookie in cookies:
    print cookie['name']
    print cookie['value']
    session.cookies.set(cookie['name'], cookie['value'])

payload = {'ctl00_AjaxScriptManager_HiddenField':'',
           '__EVENTTARGET':'ctl00$MasterHeaderPlaceHolder$ctl00$goButton',
           '__EVENTARGUMENT':'',
           '__VIEWSTATE':VIEWSTATE,
           '__PREVIOUSPAGE':PREVPAG,
           '__EVENTVALIDATION':EVENTVALIDATION,
           'txtPassword':Username,
           'txtUserName':Password,
           'CMSessionId':SESSIONID,
           'returnURL':'/ui/pages/affiliates/Affiliates.aspx',
           'ctl00$MasterHeaderPlaceHolder$ctl00$userNameTextbox':Username,
           'ctl00$MasterHeaderPlaceHolder$ctl00$passwordTextbox':Password,
           'ctl00$MasterHeaderPlaceHolder$ctl00$tempPasswordTextbox':'Password'}


session.post('https://www.bet365affiliates.com/Members/CMSitePages/SiteLogin.aspx?lng=1',data=payload)