Inserting python iteration of lists into mysql Database

I am trying to extract medium data and save it to the database. I am able to extract data into lists and clubbed them using zip function. But when I am inserting the data it is not getting inserted.

I have iterated to zip function to save data to a database. But not getting the required outcome. I have crawled medium posts successfully and there is nothing wrong with the sequence of my tables in the database.

import mysql.connector
mydb = mysql.connector.connect(host="localhost", user="root", 
       password="Jai@1998", database="crawldb")
cursor = mydb.cursor()


from selenium import webdriver
from selenium.webdriver.chrome.options import Options
opts = webdriver.ChromeOptions()
opts.set_headless()
assert opts.headless
browser = webdriver.Chrome(options=opts)
browser.get('https://medium.com/')


comp = browser.find_elements_by_xpath('//div[@class = "streamItem 
       streamItem-extremePostPreview js-streamItem"]')

authors = []
timeline = []

for i in range(len(comp)):
    x = comp[i].find_element_by_xpath('.//div[@class = "postMetaInline 
        postMetaInline-authorLockup u-padding0 u-flexShrink1 u- 
        noWrapWithEllipsis"]')
    authors.append(x)
    y = comp[i].find_element_by_xpath('.//div[@class = "ui-caption u- 
        noWrapWithEllipsis"] ')
    timeline.append(y)




 topics = browser.find_elements_by_xpath('//h2[@class = "ui-h2 ui-xs-h4 
          ui-clamp3"]')
 descriptions = browser.find_elements_by_xpath('//div[@class = "ui- 
                summary ui-clamp2 u-marginTop2"]')


for title, desc, author, time in zip(topics, descriptions, authors, 
                                     timeline):
    print("topics : descriptions : authors : timeline")
    print(title.text + ": " + desc.text + ": "+ author.text + ": " + 
          time.text, '\n')


    sql = "INSERT INTO `DATAS`(topics, descriptions, authors, time) 
           VALUES(%s , %s , %s , %s)", (title.text, desc.text , 
           author.text , time.text)

    try:
        cursor.executemany(sql)
        mydb.commit()
        print("data inserted!!")

    except:
          mydb.rollback()

          mydb.close()                
          print("data not inserted!!")

The output is the extracting data and data not inserted! in SQL.