PyQt5 - Failed to load platform plugin “windows”. Available platforms are: windows, minimal

Question

When I try to run any PyQt5 program from Eclipse, I got this error.

Failed to load platform plugin \"windows\". Available platforms are: windows, mini

Answer 1

I encountered this issue with PyQt5 5.0.2, Windows 8, Python 3.3.2; slightly different error message:

Failed to load platform plugin "windows". Available platforms are:

Set the following environment variable and then run the application.

$env:QT_QPA_PLATFORM_PLUGIN_PATH="C:\Python33\Lib\site-packages\PyQt5\plugins\platforms"