title: python3 how to make a cookie string to cookiejar
body: <p>python3.4</p>
  
  <pre><code>import http.cookiejar
  
  cj = http.cookiejar.CookieJar()
  
  str_cookie = 'sg=89f;tb_token_=b711be336563;tt=login.gwcool.com'
  </code></pre>
  
  <p>now, how can i translate str_cookie to cj?</p>