title: How can I maintain session after login using Selenium in Python?
body: <p>I'm succeeded logging in sites using Selenium in Python 3.4
  The login process is like below:</p>
  
  <pre><code>browser = webdriver.PhantomJS()
  browser.get('url')
  
  emailElem = self.browser.find_element_by_name('user_id')
  emailElem.send_keys(user_id)
  
  passwordElem = self.browser.find_element_by_name('password') 
  passwordElem.send_keys(user_pwd)
  
  passwordElem.submit()
  </code></pre>
  
  <p>After I login, I'm trying to access certain page where the log-in session is required,</p>
  
  <pre><code>browser.get('login-session-required-page-url')
  </code></pre>
  
  <p>It lost its session and not allowed to access.</p>
  
  <p>I think that this is related with session and cookies, but I have no idea how to deal with it.</p>