User callbacks for Operators

often there is a need to at least supplement the behavior of an already existing specific operator (for example, to do something before executing it, or after). As far as I know, there is no functionality for this

My suggestion is to add certain callbacks to the Operator class (execute_pre, execute_post, etc...). This will make it EASY to extend existing functionality, regardless of how the operator is implemented: in the core on C++, or in the Python addon

An example of what it might look like:

def callback(self, context):
     print(context.active_object.name)

...

if __name__ == "__main__":
     bpy.ops.mesh.primitive_cube_add.execute_post.append(callback)

...

Now when you add a cube, its name will be displayed in the console

in the general perspective, the design will look something like this. it is definitely worth supplementing. I think more experienced scripters will definitely find something else to add