I am currently trying to write a python script with bpy and Blender 2.9 to render images of a couple of thousand wavefront objects with material information. I only need the "true colors" of the objects, without shading, so I first tried to disable all light sources in the scene, what I could not accomplish because I am completely new to blender.
What would be the best approach to achieve this? Is there a way to set a uniform light source like the Hemi Lamp in previous blender versions? Is there a way to pass only the diffuse color of the materials? I am quite stuck at the moment and would really appreciate any advice and bpy code examples.