[Gimp-user] Help with python-fu

[Alussam <forums gimpusers com>]

> Your script registers (shows up in menus, listed in pluginrc), so you
> have it basically right.
>
> When you run it you get his message (may require to use Gimp-console
> if
> you are on Windows):
>
> Traceback (most recent call last):
>  File "/app/lib/gimp/2.0/python/gimpfu.py", line 857, in _run
>  res = apply(func, params[1:])
> TypeError: crop_all_layers() takes exactly 1 argument (2 given)
>
> This is because your function takes one single argument ("image"), and
> since your plugin is using old-style registration, an image and a
> layer
> are always implied as the first two arguments, so you need at least
> two
> arguments in your function (and you can ignore the second).
>
> A better approach is to use new-style registration. In this
> registration
> model, the menu entry is split in two: the menu label as before, but
> without any path, and a named "menu" argument with the path:
>
> Old style:
>
> register(
>  "crop-all-layers","","","Alex","Alex","2020",
>  "<Image>/Filters/Artistic/_croplayers...",
>  "RGB*, GRAY*",
>  [],
>  [],
>  crop_all_layers,
> )
>
> New style:
>
> register(
>  "crop-all-layers","","","Alex","Alex","2020",
>  "_croplayers...",
>  "RGB*, GRAY*",
>  [],
>  [],
>  crop_all_layers,
>  menu="<Image>/Filters/Artistic/"
> )
>
> However with the new style registration, there are no implicit
> arguments, so you have to declare your image argument:
>
> register(
>  "crop-all-layers","","","Alex","Alex","2020",
>  "_croplayers...",
>  "RGB*, GRAY*",
>  [(PF_IMAGE, "image", "Input image", None)],
>  [],
>  crop_all_layers,
>  menu="<Image>/Filters/Artistic/"
> )
>
> And then of course use a function that takes a single argument, the
> image.
>
> Some hints to debug your scripts, especially if you are on Windows:
>
> https://www.gimp-forum.net/Thread-Debugging-python-fu-scripts-in-Windows
>
> PS: Couldn't see anything useful in your video, it is too fuzzy to see
> the labels. Best make static screenshots, and copy/paste any error
> messages as text.
 Thanks a lot! I will try it now

-- 
Alussam (via www.gimpusers.com/forums)