title: PyQt5 cannot import name 'QApplication'
body: <p>I am trying convert my code from PyQt4 to PyQt5 but I am getting errors.</p>
  
  <pre><code>from PyQt5.QtGui import QApplication, QPixmap
  desktop = QApplication.desktop()
  QPixmap.grabWindow(desktop.screen().winId()).save("screen.png", "PNG")
  
  
  3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:44:40) [MSC v.1600 64 bit (AMD64)]
  Traceback (most recent call last):
    File "C:\Python34\Projects\name.py", line 7, in &lt;module&gt;
      from PyQt5.QtGui import QApplication, QPixmap
  ImportError: cannot import name 'QApplication'
  </code></pre>