copy attr

from pxr import Usd, UsdShade

# Assume stage is your loaded USD stage
# Replace '/LightPrimPath' and '/ShadingPrimPath' with the actual paths of the light and shading prims
stage = Usd.Stage.Open("path_to_your_stage.usda")
light_path = "/LightPrimPath"
shading_path = "/ShadingPrimPath"

# Fetch the light prim and the shading prim
light_prim = stage.GetPrimAtPath(light_path)
shading_prim = stage.GetPrimAtPath(shading_path)

# Check if the light prim has the 'inputs:texture:file' attribute
light_texture_attr = light_prim.GetAttribute("inputs:texture:file")
if light_texture_attr:
    # Get the value of the attribute
    texture_file = light_texture_attr.Get()

    # Fetch or create the shading prim's 'inputs:file' attribute
    shading_shader = UsdShade.Shader(shading_prim)
    file_attr = shading_shader.CreateInput("file", Sdf.ValueTypeNames.Asset)

    # Apply the texture file path to the 'inputs:file' attribute on the shading prim
    file_attr.Set(texture_file)
    print(f"Applied texture file '{texture_file}' from light prim to shading prim.")

else:
    print("The light prim does not have an 'inputs:texture:file' attribute.")