import requests
import sys
USERNAME = 'username'
PASSWORD = 'password'
URL = 'http://edline.net/Index.page'

def main():
     session = requests.session(config = {'verbose': sys.stderr})

     login_data = {
     'screenName': USERNAME,
     'btnSignIn' : 'signIn',
     'password' : PASSWORD,
     }

     r = session.post(URL,data=login_data)

     r = session.get("https://www.edline.net/UserDocList.page?")
     #access a page requiring login
     print r.text
if __name__ == '__main__':
    main()

import requests
url = 'url'
data = {
      "screenName" : "username",
      "password" : "password",
      "btnSignIn" : "signIn",
}
r = requests.post(url, data=data)