과제를 수행하는 코드가 작동은 하는데 오류를 뱉습니다.

좋은 강의 열심히 듣고 있습니다~ 다름이 아니라 과제로 다음 실시간 검색어 10개를 스크래핑 하는 코드를 작성했습니다. 검색어와 주소를 깔끔하게 출력하는데는 성공했는데 오류가 발생합니다.

코드와 오류 및 결과를 첨부하겠습니다.

from bs4 import BeautifulSoup
import sys
import io
import urllib.request as req

sys.stdout = io.TextIOWrapper(sys.stdout.detach(), encoding = 'utf-8')
sys.stderr = io.TextIOWrapper(sys.stderr.detach(), encoding = 'utf-8')

url = "https://www.daum.net"
up = req.urlopen(url).read()
soup = BeautifulSoup(up, 'html.parser')

selector = "#mArticle > div.cmain_tmp > div.section_media > div.hotissue_builtin.hide > div.realtime_part > ol > li:nth-child({}) > div > div:nth-child(1) > span.txt_issue > a"


def Print_Issue_And_Link(selector, num):
    #검색어를 출력
    print(num, "위: ", soup.select_one(selector.format(num)).string)
    print("link: ", soup.select_one(selector.format(num)).attrs['href'])

for i in range(1,21):
    Print_Issue_And_Link(selector, i)


-------------------------------------------------------------------------------------------------------------
/Users/sangsoohan/opt/anaconda3/envs/section2/bin/python /Users/sangsoohan/Documents/Programing_Project/Project_Moneyball/python_crawling/section2/daum_ontime_issue.py
1 위:  전광렬
link:  https://search.daum.net/search?w=tot&q=%EC%A0%84%EA%B4%91%EB%A0%AC&DA=ATG&rtmaxcoll=1TH
2 위:  박술녀
link:  https://search.daum.net/search?w=tot&q=%EB%B0%95%EC%88%A0%EB%85%80&DA=ATG&rtmaxcoll=1TH
3 위:  박희영
link:  https://search.daum.net/search?w=tot&q=%EB%B0%95%ED%9D%AC%EC%98%81&DA=ATG&rtmaxcoll=1TH
4 위:  차준환
link:  https://search.daum.net/search?w=tot&q=%EC%B0%A8%EC%A4%80%ED%99%98&DA=ATG&rtmaxcoll=1TH
5 위:  25번째 코로나 환자
link:  https://search.daum.net/search?w=tot&q=25%EB%B2%88%EC%A7%B8+%EC%BD%94%EB%A1%9C%EB%82%98+%ED%99%98%EC%9E%90&DA=ATG&rtmaxcoll=1TH
6 위:  유승민
link:  https://search.daum.net/search?w=tot&q=%EC%9C%A0%EC%8A%B9%EB%AF%BC&DA=ATG&rtmaxcoll=1TH
7 위:  시흥시 매화동
link:  https://search.daum.net/search?w=tot&q=%EC%8B%9C%ED%9D%A5%EC%8B%9C+%EB%A7%A4%ED%99%94%EB%8F%99&DA=ATG&rtmaxcoll=1TH
8 위:  최혜진
link:  https://search.daum.net/search?w=tot&q=%EC%B5%9C%ED%98%9C%EC%A7%84&DA=ATG&rtmaxcoll=1TH
9 위:  ufc
link:  https://search.daum.net/search?w=tot&q=ufc&DA=ATG&rtmaxcoll=1TH
10 위:  인교진
link:  https://search.daum.net/search?w=tot&q=%EC%9D%B8%EA%B5%90%EC%A7%84&DA=ATG&rtmaxcoll=1TH
Traceback (most recent call last):
  File "/Users/sangsoohan/Documents/Programing_Project/Project_Moneyball/python_crawling/section2/daum_ontime_issue.py", line 22, in <module>
    Print_Issue_And_Link(selector, i)
  File "/Users/sangsoohan/Documents/Programing_Project/Project_Moneyball/python_crawling/section2/daum_ontime_issue.py", line 18, in Print_Issue_And_Link
    print(num, "위: ", soup.select_one(selector.format(num)).string)
AttributeError: 'NoneType' object has no attribute 'string'

Process finished with exit code 1