Blender Pythonからマテリアルのノードへアクセス（２）

import bpy

nodetree = bpy.context.active_object.material_slots["Material-red"].material.node_tree

nodes = nodetree.nodes

nodes.new('ShaderNodeBsdfDiffuse')

import bpy

nodetree = bpy.context.active_object.material_slots["Material-red"].material.node_tree

nodes = nodetree.nodes

nodes.remove(  nodes['Diffuse BSDF']  )

import bpy

nodetree = bpy.context.active_object.material_slots["Material-red"].material.node_tree

nodes = nodetree.nodes

diffuse = nodes['Diffuse BSDF']
MaterialOutput = nodes['Material Output']

nodetree.links.new(diffuse.outputs[0],MaterialOutput.inputs[0])

import bpy

nodetree = bpy.context.active_object.material_slots["Material-red"].material.node_tree

nodes = nodetree.nodes

diffuse = nodes['Diffuse BSDF']

diffuse.label = "Diffuse BSDF -added"