title: No module named 'numpy' in pycharm
body: <p>I am quite new to python and pycharm.<br>
  I installed python 3.6 through anaconda, and I can see many packages including numpy are installed as I can see them in cmd (im using windows) by typing 'conda list'. Also, it works if i type 'import numpy' in python through window command prompt.</p>
  
  <p>However, if I open pycharm and run "import numpy" there, it gives me 'No module named 'numpy' in pycharm'. May I know whats wrong with my setting? I guess it must be some problem with my interpreter setting.</p>
  
  <p>I think my python is installed in C:\Users\AAA\Anaconda3\python.exe
  I checked in pycharm, project interpreter is "C:\Users\AAA\PycharmProjects\untitled\venv\Scripts\python.exe"</p>
  
  <p>Should I change it to the one under anaconda3 folder?<br>
  What is venv folder under "pycharmprejcts"? Is it a virtual environment? It shows (see the attached screenshot) the base interpreter is the one under anaconda? Should I choose to inherit global site-packages?</p>
  
  <p><img src="https://i.stack.imgur.com/IpuZi.jpg" alt="Please click here to see the screenshot of my current project interpreter location"></p>