Python json list as json and write in json file,tkinter popup as messagebox

import uuid
import datetime
import time
import json
import tkinter as tk
import tkinter.messagebox as msgBoxclass Book():def __init__(self,id,name,isbn,comment,content,summary,title,topic):self.id=idself.name=nameself.isbn=isbnself.comment=commentself.content=contentself.summary=summaryself.title=titleself.topic=topicdef __str__(self):return f'Id:{self.id},name:{self.name},isbn:{self.isbn},comment:{self.comment},content:{self.content},summary:{self.summary},title:{self.title},topic:{self.topic}'book_list=[]arr=range(1,100001)
for a in arr:book_list.append(Book(f'{a}',f'Name_{a}',f'ISBN_{a}',f'Comment_{a}',f'Content_{a}',f'Summary_{a}',f'Title_{a}',f'Topic_{a}'))book_data=[]
for bk in book_list:dic={'id':bk.id,'name':bk.name,'isbn':bk.isbn,'comment':bk.comment,'content':bk.content,'summary':bk.summary,'title':bk.title,'topic':bk.topic}book_data.append(dic)jsonFile=f'Json_{datetime.datetime.now().strftime("%Y%m%d%H%M%S%f")}.json'
with open(jsonFile,'a+',encoding='utf-8') as jsonWriteFile:json.dump(book_data,jsonWriteFile,indent=4)msgBox.showinfo(f'json serialization finished!',f'{datetime.datetime.now()} save {len(book_list)} items in {jsonFile}')