title: PyCharm on MAC - ModuleNotFoundError: No module named 'sklearn'
body: <p>I'm using PyCharm and learning the basics of Machine Learning through a Mooc. </p>
  
  <p>As always, things don't go as expected when you try things shown by the teacher by yourself and until now I was able to fix the issues by myself but I'm stuck since quite a while and that's why I created an account here :) </p>
  
  <p>when I try <code>import sklearn as pd</code> (can't find how to do this as "code") I get <code>ModuleNotFoundError: No module named 'sklearn'</code></p>
  
  <p>I've had the same issue with pandas and numpy previously and was able to solve it by adding </p>
  
  <pre><code>import sys
  
  sys.path.append("numpy_path/pandas_path")
  </code></pre>
  
  <p>and trying some things on the terminal (I'm on Mac) like <code>pip install numpy</code> or <code>conda install numpy</code> but this time nothing seems to work. </p>
  
  <p>I suspect the issue to be that sklearn is somewhere else on my computer than where the Python program is searching but am not sure.. Let me know if you can help :) </p>