canciones de un artista en LaCuerda.net

artista_la_cuerda.py

import requests
from bs4 import BeautifulSoup
from operator import methodcaller

url_bs = lambda url: BeautifulSoup(requests.get(url).text,'html5lib')  # magic!

def recopila_acordes(artista = 'Manu Chao'):       # "Manu Chao" -> manu_chao
    fartist = '_'.join(map(methodcaller("lower"),artista.split()))   
    url = f'https://acordes.lacuerda.net/{fartist}/'
    
    songs = url_bs(url).find_all('ul',attrs={'class':'b_main'})[0].find_all('a')   
    songs = [(s.text, url+s['href']+'.shtml') for s in songs]
    fetch = {' '.join(s[0].split()[:-1]): url_bs(s[1]) for s in songs}
    fetched = {}
    for song_name, song_page in fetch.items():
        fv = song_page.find_all('div',attrs={'id':'t_body'})
        try:
            fetched[song_name] = fv[0].text 
        except:
            print("Unexpected error:", sys.exc_info()[0])
    
    print('Encontré %d canciones para %s' %(len(fetched), artista))