title: Globally setting module paths
body: <p>After I install Python modules using pip3, they install to my site-packages sub folder in my python3.7 folder. </p>
  
  <p>When beginning a new Python project, I have to set the path each time like so:</p>
  
  <pre><code>    import sys
      sys.path.append('/usr/local/lib/python3.7/site-packages')
  </code></pre>
  
  <p>I thought simply add the following to the terminal would solve this problem</p>
  
  <pre><code>PYTHONPATH="/usr/local/lib/python3.7/site-packages/":"${PYTHONPATH}"
  export PYTHONPATH
  </code></pre>
  
  <p>However, this does not seem to resolve the problem. I continue to receive the error </p>
  
  <pre><code>ModuleNotFoundError: No module named 'X'
  </code></pre>
  
  <p>I appreciate any help on this basic task, as I am not very familiar with the terminal environment.</p>