Has anyone got the feature working that lets you choose from the image menu in the image editor to edit an image in an external program? I want it to automatically open in GIMP and have set GIMP as my external editor in the user preferences but it doesn’t work.
Windows XP.
I used a method, which you might not want to use. 
But if you don’t care about choosing your image editor or editing the python script itself…
I opened “image_edit.py” and changed line 116 as my system is win64 to:
if platform == ‘win64’:
Then I put in line 124 the Gimp path like it is shown in the example in line 118.
So there is:
appstring = ‘“E:\PortableAps\GIMPPortable\GIMPPortable.exe” %f’
Then saved the file and got everytime the image opened with Gimp.
I hope someone else knows a better solution. 