title: Why do I have this error when using pyplot?
body: <p>Ok, now this is just an example code: </p>
  
  <pre><code>from matplotlib import pyplot   
  
  time = [0, 1, 2, 3]
  position = [0, 100, 200, 300]
  
  pyplot.plot(time, position)
  pyplot.xlabel('Time (hr)')
  pyplot.ylabel('Position (km)')
  </code></pre>
  
  <p>And the output is this:</p>
  
  <pre><code>= RESTART: C:/Users/Utente/AppData/Local/Programs/Python/Python38/pyplot_test.py
  </code></pre>
  
  <p>Where <code>C:/Users/Utente/AppData/Local/Programs/Python/Python38/pyplot_test.py</code> is the path file of this example code. Any help?</p>
  
  <p>Windows 10<br>
  Python 3.8.2</p>