There are no custom classes in bpy.types #76606

New Issue

Sergey · 2020-05-10T07:16:25+02:00

Sergey commented

2020-05-10 07:16:25 +02:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 416.34

Blender Version
Broken: version: 2.83 (sub 13), branch: master, commit date: 2020-04-21 17:59, hash: 13e3a1c532

Short description of error
I'm reading current documentation:
https://docs.blender.org/api/current/info_overview.html#class-registration

Once this class is loaded you can access it from bpy.types, using the bl_idname rather than the classes original name.

When I'm trying get my class I get attributeerror

Exact steps for others to reproduce the error

import bpy

class MyCustomTree(bpy.types.NodeTree):
    bl_idname = 'CustomTreeType'
    bl_label = "Custom Node Tree"
    bl_icon = 'NODETREE'

bpy.utils.register_class(MyCustomTree)

>>> bpy.types.CustomTreeType

Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
AttributeError: 'RNA_Types' object has no attribute 'CustomTreeType'

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 416.34 **Blender Version** Broken: version: 2.83 (sub 13), branch: master, commit date: 2020-04-21 17:59, hash: `13e3a1c532` **Short description of error** I'm reading current documentation: https://docs.blender.org/api/current/info_overview.html#class-registration > Once this class is loaded you can access it from bpy.types, using the bl_idname rather than the classes original name. When I'm trying get my class I get attributeerror **Exact steps for others to reproduce the error** ``` import bpy class MyCustomTree(bpy.types.NodeTree): bl_idname = 'CustomTreeType' bl_label = "Custom Node Tree" bl_icon = 'NODETREE' bpy.utils.register_class(MyCustomTree) ``` ``` >>> bpy.types.CustomTreeType Traceback (most recent call last): File "<blender_console>", line 1, in <module> AttributeError: 'RNA_Types' object has no attribute 'CustomTreeType' ```

Sergey commented

2020-05-10 07:16:25 +02:00

Added subscriber: @randum

Sergey changed title from ~~There is no custom classes in bpy.types~~ to There are no custom classes in bpy.types

2020-05-10 07:19:36 +02:00

Campbell Barton commented

2020-05-11 10:25:33 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2020-05-11 10:25:33 +02:00

Changed status from 'Needs Triage' to: 'Resolved'

Campbell Barton closed this issue

2020-05-11 10:25:33 +02:00

Campbell Barton self-assigned this 2020-05-11 10:25:33 +02:00

Campbell Barton commented

2020-05-11 10:25:33 +02:00

Added note in docs: f4d65b0d6e

Added note in docs: f4d65b0d6e

Sergey commented

2020-05-11 11:13:53 +02:00

Can you clarify how this should be done in my example? According new note I'm writing something like this but it is raising the error:

>>> bpy.types.Struct.bl_rna_get_subclass('CustomTreeType')

Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
ValueError: Class type "Struct" not supported

Can you clarify how this should be done in my example? According new note I'm writing something like this but it is raising the error: ``` >>> bpy.types.Struct.bl_rna_get_subclass('CustomTreeType') Traceback (most recent call last): File "<blender_console>", line 1, in <module> ValueError: Class type "Struct" not supported ```

Himanshi Kalra commented

2020-05-11 23:08:18 +02:00

Added subscriber: @Calra

Himanshi Kalra commented

2020-05-11 23:08:18 +02:00

@randum try bpy.types.NodeTree.bl_rna_get_subclass_py('CustomTreeType')

@randum try `bpy.types.NodeTree.bl_rna_get_subclass_py('CustomTreeType')`

Sergey commented

2020-05-12 07:16:30 +02:00

@Calra Yes it works. Thanks a lot. I was close to figure it out by myself.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

There are no custom classes in bpy.types #76606