ui_ops4_.py

import json

def sv_main(items_in=[]):
 
    in_sockets = [
        ['v', 'items_in', items_in]]
 
    Verts = []
 
    def func1():
        # directly from incoming Object_in socket.
        sn = bpy.context.node
        print(items_in)
        
        # safe? or return early
        if not (sn.inputs and sn.inputs[0].links):
            msg = 'no input socket, or nothing connected'
            print(dir(sn))
            return
        
        # will try to find objects_local in from_node, else return None
        obj_in = sn.inputs[0].links[0].from_node
        obj_names = obj_in.get('objects_local', None)
        if not obj_names:
            return
        
        obj_names = ast.literal_eval(obj_names)
        verts = SvGetSocketAnyType(sn, sn.inputs['items_in'])

        obj_dict = {}
        for idx, obj_name in enumerate(obj_names):
            obj_dict[obj_name] = {'verts': verts[idx]}
        
        json_string = json.dumps(obj_dict)
        print(json_string)
        # return json_string
            
 
    out_sockets = [['v', 'Verts', [Verts]]]
    ui_operators = [['print_names', func1]]
 
    return in_sockets, out_sockets, ui_operators