Python Fu

[Ofnuts]

This is because you are using the "old style" registration model (where the 7th arg is the complete menu path).

Code:

register(
    id,
    desc,help,
    author,author,'2023',
    '<Image>/Test/The menu item',  # Full menu path
    imageFilter,
    [argsIn],
    [argsOut],
    function
    )

In the new style, the 7th arg is only the menu item label, and there is an additional keyword argument menu= that specifies the menu hierarchy:

Code:

register(
    id,
    desc,help,
    author,author,'2023',
    'The menu item',  # Menu label
    imageFilter,
    [argsIn],
    [argsOut],
    function,
    menu='<Image>/Test'  # Menu hierarchy
    )

and when you use it, the image/drawable parameters are no longer implicit, and must be specified. But they are set automatically from current Image/drawable and are not shown  in the parameter dialog when Gimp can figure them out.