👇 정답코드

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')

title = soup.select_one('#old_content > table > tbody > tr:nth-child(2) > td.title > div > a')

movies = soup.select('#old_content > table > tbody > tr')

for movie in movies:
    a = movie.select_one('td.title > div > a')

  a is not != None:
        title = a.text
        rank = movie.select_one('td:nth-child(1) > img')['alt']
        star = movie.select_one('td.point').text

        print(rank, title, star)

👇 오답코드

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')

title = soup.select_one('#old_content > table > tbody > tr:nth-child(2) > td.title > div > a')

movies = soup.select('#old_content > table > tbody > tr')

for movie in movies:
    a = movie.select_one('td.title > div > a')
    b = movie.select_one('td:nth-child(1) > img')['alt']
    c = movie.select_one('td.point')

    if a  != None:
        title = a.text
        rank = b.text
        star = c.text

        print(rank, title, star)

정답코드로 실행해보니 정상적으로 실행되는데, 제가 한 코드가 왜 오류가 나는 지 궁금해서요!

구체적으로는 'for movie in movies' 단락 다음에 왜 title에 대한 .select.one('td.title > div > a')만 들어가야하는 지 모르겠습니다.