Bpy/Python is letting create inputs at the node level for node groups that make blend file unsaveable #62732

New Issue

iszotic · 2019-03-19T04:36:56+01:00

iszotic commented

2019-03-19 04:36:56 +01:00

System Information
Operating system: Linux-4.15.0-46-generic-x86_64-with-Ubuntu-18.04-bionic 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13542 Core Profile Context 18.50.1.418

Blender Version
Broken: version: 2.80 (sub 49)
Worked: Create the inputs at the node_tree level
Short description of error
bpy is letting create inputs at the node level for node groups that make blend file unsaveable by crashing blender saving.

Exact steps for others to reproduce the error

Go to compositor view
Create a group by adding a Mix node and then group it
Execute this line in the python console

the node now has a new input, but then entering the group the new input is not there
save, here it crashes and it doesn't save the file.

The blend file is in step 2)
{F6847403}

**System Information** Operating system: Linux-4.15.0-46-generic-x86_64-with-Ubuntu-18.04-bionic 64 Bits Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13542 Core Profile Context 18.50.1.418 **Blender Version** Broken: version: 2.80 (sub 49) Worked: Create the inputs at the node_tree level **Short description of error** bpy is letting create inputs at the node level for node groups that make blend file unsaveable by crashing blender saving. **Exact steps for others to reproduce the error** 1) Go to compositor view 2) Create a group by adding a Mix node and then group it 3) Execute this line in the python console ```bpy.context.scene.node_tree.nodes['Group'].inputs.new('NodeSocketColor','stuff') ``` 4) the node now has a new input, but then entering the group the new input is not there 5) save, here it crashes and it doesn't save the file. The blend file is in step 2) {F6847403}

iszotic commented

2019-03-19 04:36:56 +01:00

Added subscriber: @iszotic

Bastien Montagne commented

2019-03-19 14:23:03 +01:00

Added subscriber: @mont29

Bastien Montagne commented

2019-03-19 14:23:03 +01:00

Confirmed, bpy.context.scene.node_tree.nodes['Group'].node_tree.inputs.new('NodeSocketColor','stuff') is working as expected (the direct access from Group node's inputs should be a shortcut to that one I think, or not allow this operation at all, checking code…)

Confirmed, `bpy.context.scene.node_tree.nodes['Group'].node_tree.inputs.new('NodeSocketColor','stuff')` is working as expected (the direct access from Group node's inputs should be a shortcut to that one I think, or not allow this operation at all, checking code…)

Bastien Montagne self-assigned this 2019-03-19 14:23:16 +01:00

Jacques Lucke commented

2019-03-19 14:23:28 +01:00

Added subscribers: @brecht, @JacquesLucke

Jacques Lucke commented

2019-03-19 14:23:28 +01:00

I'm pretty sure that this is not supposed to work.
I actually don't know the API to add sockets to groups, but I guess it has to be done "from the inside".

I'm pretty sure that this is not supposed to work. I actually don't know the API to add sockets to groups, but I guess it has to be done "from the inside".

Bastien Montagne commented

2019-03-19 14:40:56 +01:00

@JacquesLucke I think this is fairly easy to add (just call the function adding sockets to group's nodetree instead in RNA code), trying it currently…

blender-admin commented

2019-03-19 14:43:14 +01:00

This issue was referenced by blender/blender@e8777a7290

This issue was referenced by blender/blender@e8777a729013d04dcb854b0b9f327e9b90191747

Jacques Lucke commented

2019-03-19 14:43:18 +01:00

It's nice to hear you say that something is easy, related to node trees haha

Bastien Montagne commented

2019-03-19 14:45:18 +01:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2019-03-19 14:45:18 +01:00

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Bpy/Python is letting create inputs at the node level for node groups that make blend file unsaveable #62732