Added a blender operator to replace objects for empties, matching the orientation of the objects

python/blender.op.emptify.py

@@ -0,0 +1,45 @@
+import bpy
+
+def main(context):
+    obs = list(context.selected_objects)
+    for ob in obs:
+        empty = bpy.data.objects.new(ob.name+"_empty", None)
+        scene = bpy.context.scene
+        scene.objects.link(empty)
+        bpy.ops.object.select_pattern(pattern=empty.name,extend=False)
+        bpy.ops.object.select_pattern(pattern=ob.name,extend=True)
+        bpy.ops.object.parent_no_inverse_set()
+        bpy.ops.object.select_pattern(pattern=empty.name,extend=False)
+        bpy.ops.object.parent_clear(type='CLEAR_KEEP_TRANSFORM')
+        bpy.ops.object.select_pattern(pattern=ob.name,extend=False)
+        bpy.ops.object.delete(use_global=False)
+        
+        scene.update()
+        
+class Emptyfy(bpy.types.Operator):
+    """Tooltip"""
+    bl_idname = "object.emptyfy"
+    bl_label = "Emptify"
+
+    @classmethod
+    def poll(cls, context):
+        return context.active_object is not None
+
+    def execute(self, context):
+        main(context)
+        return {'FINISHED'}
+
+
+def register():
+    bpy.utils.register_class(Emptyfy)
+
+
+def unregister():
+    bpy.utils.unregister_class(Emptyfy)
+
+
+if __name__ == "__main__":
+    register()
+
+    # test call
+    #bpy.ops.object.emptyfy()