GIMP Python plug-in template from gimpbook.com with additional notes

gimp-script.py

#!/usr/bin/env python

# GIMP Python plug-in template.

# To run the plugin, place it in .config/GIMP/plug-ins/PLUG_DIR/PLUG_NAME.py
# Where PLUG_DIR and PLUG_NAME are the name of your script e.g. myscript/myscript.py
# Note for AppImage version replace GIMP with GIMP-AppImage
# make the script executable (chmod +x myscript.py)

from gimpfu import *

def do_stuff(img, layer, howmuch) :
    gimp.progress_init("Doing stuff to " + layer.name + "...")

    # Set up an undo group, so the operation will be undone in one step.
    pdb.gimp_undo_push_group_start(img)

    # Do stuff here.
    pdb.gimp_invert(layer)

    # Close the undo group.
    pdb.gimp_undo_push_group_end(img)

register(
    "python_fu_do_stuff",
    "Do stuff",
    "Longer description of doing stuff",
    "Your Name",
    "Your Name",
    "2010",
    "Do Stuff...",
    "*",      # Alternately use RGB, RGB*, GRAY*, INDEXED etc.
    [
        (PF_INT, "howmuch", "How much stuff?", 50)
    ],
    [],
    do_stuff, menu="<Image>/Filters/Enhance")

main()