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The Laplacian Lightning Generator addon broke with some recent API changes, as reported in this bug.

Attempting to enable it results in this:

Traceback (most recent call last):
  File "/usr/share/blender/2.68/scripts/modules/addon_utils.py", line 294, in enable
    mod = __import__(module_name)
  File "/usr/share/blender/2.68/scripts/addons_contrib/object_laplace_lightning.py", line 117, in <module>
    scn = bpy.context.scene
AttributeError: '_RestrictContext' object has no attribute 'scene'

As it was only some API changes that broke this, I assume (also from looking at the error) that this might be a fairly trivial problem (I'm inexperienced with python, so that might be a false assumption)

Are there a few simple changes I can make to get this addon working?

I know it works to run it in the text editor, however I would like to be able to use it as an addon without having to re run it every time I start blender.

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  • $\begingroup$ Did you tried to run the script from text-editor, as specified on the website of the link you posted ? --> "UPDATE – 02.14.13 (...) An API change has made the addon not load. It has something to do bpy.scene.context. I’ll look into it when I have a chance. Fortunately the script will still run as a regular script. If you want to use it, just use the .blend file below or just load it in the text editor and hit run" $\endgroup$
    – Polosson
    Commented Oct 11, 2013 at 21:14
  • $\begingroup$ @Polosson I did try that, and it works :). However I would like to be able to enable it once without having to restart it each time I restart blender. (I forgot to add this to the question originally..) $\endgroup$
    – gandalf3
    Commented Oct 12, 2013 at 0:34

1 Answer 1

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Read about the API change:
http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.66/Addons#Restricted_Context

And here I posted an example script to show a possible solution:
http://wiki.blender.org/index.php/Extensions:2.6/Py/API_Changes#Restricted_Context

There's also a hack to circumvent the context restriction: Add an app handler for the scene_update_post event, let it remove itself and run the initialization code in the body.

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