why I can't scrape a website?

[metulburr]

try adding in a bogus header

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/71.0.3578.98 Safari/537.36"
}

url = 'https://map.naver.com'
req = requests.get(url, headers=headers)
bs = BeautifulSoup(req.text, 'html.parser')
print(bs)

However based on the results being javascript, you may need selenium instead of requests to obtain the correct HTML.