title: installed modules not working in various python enviorments
body: <ul>
  <li><p>I am trying to use various imported modules such as, numpy, guiqwt,
  and matplotlib. When I import the modules I get:</p>
  
  <pre><code>           ModuleNotFoundError: No module named " "
  </code></pre></li>
  <li><p>However, I have successfully installed all of these libraries using
  pip install. </p>
  
  <p>From what I have gathered so far, I do not think this is a problem
  with having dependencies to the modules and instead a path issue. </p>
  
  <p>I noticed this error on pyCharm and Idle, although is not occurring
  on Anaconda. I understand this may have to do with the fact that
  Anaconda installed its own Python (for lack of better terms).</p></li>
  </ul>
  
  <p>Can someone help explain why this is happening?
  Thanks in advance, </p>
  
  <p>Here is a screenshot of my env. variables if it matters:</p>
  
  <p><a href="https://i.stack.imgur.com/gJt0w.png" rel="nofollow noreferrer">a screenshot of my environment variables</a></p>