Operators (bpy. ops) - Blender Python API Common return values are {'FINISHED'} and {'CANCELLED'}, the latter meaning that the operator execution was aborted without making any changes or saving an undo history entry
Operator Return Items - Blender Python API - Blender Documentation RUNNING_MODAL: Running Modal Keep the operator running with blender CANCELLED: Cancelled The operator exited without doing anything, so no undo entry should be pushed FINISHED: Finished The operator exited after completing its action PASS_THROUGH: Pass Through Do nothing and pass the event on INTERFACE: Interface Handled but not
python - Return values of operators - Blender Stack Exchange Quoting from the API documentation Operators don’t have return values as you might expect, instead they return a set () which is made up of: {‘RUNNING_MODAL’, ‘CANCELLED’, ‘FINISHED’, ‘PASS_THROUGH’}
Operators (bpy. ops) — UPBGE Blender Python API Common return values are {'FINISHED'} and {'CANCELLED'}, the latter meaning that the operator execution was aborted without making any changes or saving an undo history entry