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')

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')
    c = movie.select_one('td.point')

    if a is not None:
        title = a.text
        rank = b['alt']
        star = c.text
        print(title,rank,star)
#old_content > table > tbody > tr:nth-child(2) > td.title > div > a
#old_content > table > tbody > tr:nth-child(2) > td:nth-child(1) > img
#old_content > table > tbody > tr:nth-child(2) > td.point

*************

 b = movie.select_one('td:nth-child(1) > img') 를

 b = movie.select_one('td:nth-child(1)')    >img를 빼고 이렇게해서 

print(b) 하면
<td class="ac"><img alt="50" height="13" src="https://ssl.pstatic.net/imgmovie/2007/img/common/bullet_r_g50.gif" width="14"/></td>

 이렇게 나오는데여, 여기서 ['alt']값을 못 빼는 이유가 있을까용???