[Bf-python] RNA paths

[Campbell Barton]

Hi James,

>>> D.materials['Material'].path_from_id()

The path_from_id function is intended to get the path from a property
to the ID it comes from.
This fails in the example above because the material is it's self an ID.

An example of where you could use this function:

>>> D.materials[0].raytrace_mirror.path_from_id()
'raytrace_mirror'

This doesn't seem so useful, however if you have a constraint or a
modifier, the path isn't simply the property name.

Also note, that you can use Python's repr command to get the full path, eg:

>>> text = repr(C.object.modifiers[0])
>>> print(text)
bpy.data.objects['Cube'].modifiers["Subsurf"]


On Wed, Jun 8, 2016 at 5:34 PM, James Crowther
<jamesharrycrowther at gmail.com> wrote:
> Hi there, I am experimenting with using RNA paths, I would really like a way
> to access the bps.ops.ui.copy_data-_path_button() from python. however it
> doesn't look like this is possible. I have also tried using the method
> path_from_id() with no argument on a number of id blocks but I don't think I
> understand what this is really used for since it keeps on giving me the
> following error:
>
>>>> D.materials['Material'].path_from_id()
> Traceback (most recent call last):
>   File "<blender_console>", line 1, in <module>
> ValueError: Material.path_from_id() does not support path creation for this
> type
>
> I have tried this with other ID blocks but keep getting the same error.
>
> Currently running 2.76 on windows 7 can do a system info dump if that would
> help.
>
> My current goal is to be able to generate a path to the active object
> dynamically in python so something like bpy.data.objects['Cube']
>
> Thanks
>
> _______________________________________________
> Bf-python mailing list
> Bf-python at blender.org
> https://lists.blender.org/mailman/listinfo/bf-python
>



-- 
- Campbell