title: how to install modules correctly in Pycharm?
body: <p>I want to install PIL in python, but it seems I can't install the module correctly, is there anything that can solve the problem?
  (My python version is 2.7)</p>
  
  <p><a href="https://i.stack.imgur.com/4p2X4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4p2X4.png" alt="enter image description here"></a></p>