import bpy  
  
class MoveWhiteKnightLeft(bpy.types.Operator):  
    bl_idname = "object.movewhiteknightleft_operator"  
    bl_label = "Move White Knight Left"  
  
    def execute(self, context):  
        context.active_object.location.y += 5.50  
        context.active_object.location.x -= 2.75
        return {'FINISHED'}  
  
def register():  
    bpy.utils.register_class(MoveWhiteKnightLeft)  
  
if __name__ == "__main__":  
    register()