Simple requests + bs4 example

bs4_requests.py

from bs4 import BeautifulSoup
from requests import get as req_get


# Stating the bot's identification
headers = {'user-agent': 'topsongs:v0.1.0 by me@mail.com'}
url = 'http://www.billboard.com/charts/billboard-200'

request = req_get(url, headers=headers)
request.raise_for_status()  # in case something goes wrong

soup = BeautifulSoup(request.text, 'html.parser')
songs = soup.find_all('div', class_='chart-row__title')  # top 200 list

top = []
for song in songs:
    name = song.find(class_='chart-row__song').text.strip()
    artist = song.find(class_='chart-row__artist').text.strip()
    # list with song and artist in dict format
    top.append({'name': name, 'artist': artist})

# You don't need this second for, you could print it in the previous for
# This is just an example showcasing how you could access the dictionary
for position, song in enumerate(top, 1):
    name = song['name']
    artist = song['artist']
    print(f'#{position:03} {name} by {artist}')

Data should be scraped responsibly, here follows a good guide talking about the best practices for web scraping.
There are some bad articles that will teach how to spoof the header in order to not be detected. Bear in mind that this is not ethical at all! I'd advise updating the header with the name and version of the app and some means of contacting the owner. I'd also suggest reading reddit's guide for their API explaining why the bot's header should be updated with good information instead of spoofing!