After I wrote on “How to automatically convert files to UTF-8 using Notepad++”, I came across an issue which seems common for “Python Script” plugin users – “Unknown Exception”.

This is how to fix the error.

  1. Go to
  2. Download
  3. Close Notepad++
  4. Extract the downloaded file to Notepad++ main folder i.e. c:\Program file (x86)\Notepad++
  5. launch Notepad++ and try run Python script again

Woohoo! the error is gone now!

Hope this help!