title: Pycharm can not auto complete selenium package
body: <p>I install selenium through Python pip and write a simple file called  crawlTest.py, it works well.Later, I install Pycharm and try to  auto complete method  from selenium, but it doesn't work.  </p>
  
  <p>I guess Pycharm didn't  know where I install selenium and an external library is needed.But I try by myself and search on google and StackOverflow, I didn't  get proper  solution.</p>
  
  <p>I have read the flowing posts, but still not work. It is very useful and
   time-saving for those who use selenium and Pycharm if some one could give me .</p>
  
  <p>here is post list I hava viewed:  </p>
  
  <p><a href="https://stackoverflow.com/questions/5309279/how-to-get-pycharm-to-auto-complete-code-in-methods">How to get PyCharm to auto-complete code in methods?</a><br>
  <a href="https://stackoverflow.com/questions/12517535/pycharm-autocomplete"> PyCharm doesn't auto-completes very simple cases such as: import pickle</a></p>