Cleanup: scripts, unused variables & re-declaring built-ins

doc/python_api/examples/bpy.types.USDHook.py

@@ -307,8 +307,8 @@ class USDHookExample(bpy.types.USDHook):
         source = surf_output.GetConnectedSource()
         # Get the shader prim from the source
         shader = UsdShade.Shader(source[0])
-        id = shader.GetShaderId()
-        if id != "ND_standard_surface_surfaceshader":
+        shader_id = shader.GetShaderId()
+        if shader_id != "ND_standard_surface_surfaceshader":
             return False
 
         color_attr = shader.GetInput("base_color")

scripts/startup/bl_ui/properties_render.py

@@ -775,8 +775,6 @@ class CompositorDenoisePerformanceButtonsPanel:
         layout.use_property_decorate = False
 
         col = layout.column()
-        row = col.row()
-
         col.prop(rd, "compositor_denoise_preview_quality", text="Preview Quality")
         col.prop(rd, "compositor_denoise_final_quality", text="Final Quality")
 

scripts/startup/bl_ui/space_userpref.py

@@ -2762,7 +2762,7 @@ class USERPREF_PT_studiolight_light_editor(StudioLightPanel, Panel):
         flow = layout.grid_flow(row_major=True, columns=2, even_rows=True, even_columns=True)
         flow.active = system.use_studio_light_edit
 
-        for i, light in enumerate(system.solid_lights):
+        for light in system.solid_lights:
             self.opengl_light_buttons(flow, light)
 
         layout.prop(system, "light_ambient")