itch.io

init python:
  item_pen = Item(
    name=__("Pen"),
    cost=100,
    descr=__("Basic pen"),
    shop="tenten",
    icon="my_mod_folder/pen.webp",
    ), <--- REMOVE THIS LINE
  )

Like so:

init python:
  item_pen = Item(
    name=__("Pen"),
    cost=100,
    descr=__("Basic pen"),
    shop="tenten",
    icon="my_mod_folder/pen.webp",
  )