doc으로 잡아서 doc으로 넣는데 에러가 납니다요 ㅜㅜ

/Users/yuyeongjae/Desktop/sparta/pythoneparc/venv/bin/python /Users/yuyeongjae/Desktop/sparta/pythoneparc/hello.py 

Traceback (most recent call last):

 File "/Users/yuyeongjae/Desktop/sparta/pythoneparc/hello.py", line 30, in <module>

  db.movies.insert_one(doc)

NameError: name 'doc' is not defined

종료 코드 1(으)로 완료된 프로세스

  import requests
from bs4 import BeautifulSoup

headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36'}
data = requests.get('https://movie.naver.com/movie/sdb/rank/rmovie.naver?sel=pnt&date=20210829',headers=headers)

soup = BeautifulSoup(data.text, 'html.parser')

from pymongo import MongoClient
import certifi

ca = certifi.where()

client = MongoClient('mongodb+srv://test:sparta@cluster0.im2ccmy.mongodb.net/Cluster0?retryWrites=true&w=majority', tlsCAFile=ca)
db = client.dbsparta

movies = soup.select('#old_content > table > tbody > tr')
for movie in movies:
    a = movie.select_one('td.title > div > a')
    if a is not None:
        title = a.text
        rank = movie.select_one('td:nth-child(1) > img')['alt']
        star = movie.select_one('td.point').text
        doc = {
            'title':title,
            'rank':rank,
            'star':star
        }

    db.movies.insert_one(doc)