title: What does "MEIPASS" stand for?
body: <p>PyInstaller sets the <code>sys._MEIPASS</code> attribute to let the application know where to find its bundled resources. Source: <a href="https://stackoverflow.com/q/7674790/119527">this answer</a>.</p>
  
  <p>I know what <code>_MEIPASS</code> does. <em>What does the name <code>_MEIPASS</code> mean? What does it stand for?</em></p>
  
  <ul>
  <li>This was changed from an <code>MEIPASS2</code> environment variable in <a href="https://github.com/pyinstaller/pyinstaller/blob/4ed9c00ccbe70587709cdf1674c68d39c758cfbd/doc/CHANGES.rst#20-2012-08-08" rel="noreferrer">version 2.0</a>.</li>
  <li>Nothing in the <a href="https://github.com/pyinstaller/pyinstaller/blob/master/doc/advanced-topics.rst" rel="noreferrer">official documentation</a> even alludes to the etymology of this variable.</li>
  <li>It appears to have been around since the beginning of PyInstaller.</li>
  </ul>