title: Python: matplotlib not recognize even when it's installed
body: <p>I am importing matplotlib into my python script as follows</p>
  
  <pre><code>import matplotlib.pyplot as plt
  </code></pre>
  
  <p>I have matplotlib installed on my machine and I did it through the command prompt. It's located in the folder</p>
  
  <pre><code>C:\Users\Br. David Klecker\Downloads\WPy-3701\python-3.7.0.amd64\Lib\site-packages
  </code></pre>
  
  <p>This is the error I am getting from the IDLE screen. </p>
  
  <pre><code>import matplotlib.pyplot as plt
      ModuleNotFoundError: No module named 'matplotlib'
  </code></pre>
  
  <p>I could have sworn this was working yesterday, so the fact that it is not working today is strange. Can anyone provide a hint so to how this could have changed or if there is something I may have overlooked?</p>