"RNA_float_get: xxx.default_value not found." in pynode

Coding Python Support
1

Blender 2.67.1 r57620
win7 64bit sp1

I replacing some code on “custom_nodes.py”[a template in Text Editor]
For testing pynode in each node_tree type. eg [‘Composite’, ‘Material’, ‘Texture’…].

Origin File Path:
/Blender Foundation/blender 2.6/2.67/scripts/templates_py/custom_nodes.py

Changing:
1:


class MyCustomTreeNode :
@classmethod
    def poll(cls, ntree):
        return ntree.bl_idname == 'CustomTreeType'

# To

class MyCustomTreeNode :
    pass

2:


class MyNodeCategory(NodeCategory):
    @classmethod
    def poll(cls, context):
        return context.space_data.tree_type == 'CustomTreeType'

# To

class MyNodeCategory(NodeCategory):
    pass

So. We can get custom_node in each node_tree type.
There’s no waring Except “RNA_float_get: CustomSocketType.default_value not found.” in console.
Any suggestion for the right way?

Thanks!