title: Cannot Logging to Website using Requests in Python? Probably Missmatch between types
body: <p>The code doesn't work, and I cannot figure out why.
  I found the input values using FireFox developer  inspector. password is of type password, pwdtext is a text, but only password is connected to the input field.  Submit is called login and its content is Log In.  Still I cannot logging, and I cannot figure out what I'm doing wrong.<br>
  Cookies is always empty. I believe that I have type missmatch, or I'm missing additional inputs.</p>
  
  <pre><code>login_data = {
   'username' : 'UserName',
   'password' : "Password", #This a password type in the html
   'pwdtext'  :'Password',  #This has no value and no html widget connected to
   'login'    : "Log In"
  
  
  }
  headers = {'User-agent':
    'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7)'}
  with requests.session() as c:
        request = c.post('http://share.food.com/registration/login.esi',    data=login_data,headers=headers)
        print(request.url)
        print(request.cookies)
        request = c.get('http://www.food.com/recipe-finder/all/shrimp?pn=25')
        print (request.cookies)
  </code></pre>