Ultimate Guitar Chord Scraper

server.py

from flask import Flask, request, jsonify
import re
import requests
from bs4 import BeautifulSoup
app = Flask(__name__)

@app.route('/')
def main():
    arg = request.args.get('url')
    match = re.search("https://tabs.ultimate-guitar.com/(.*)crd_(.*).htm", arg)
    if match is not None:
        url = match.group(0)
        page = requests.get(url)
        soup = BeautifulSoup(page.text, 'html.parser')

        # Get the song title
        try:
            raw_title = soup.select(".t_title > div > h1")[0].text.strip()
            title_words = raw_title.split(' ')
            song_title = ' '.join(title_words[:len(title_words) - 1])
        except:
            song_title = "UNKNOWN"

        # Get the author of the song
        try:
            song_author = soup.select(".t_autor > a")[0].text
        except:
            song_author = "UNKNOWN"

        # Get the lyrics and chords of the song
        try:
            raw_content = filter(None, soup.select(".js-tab-content")[0].text.replace("\r", "").replace('\"', """).split("\n"))
            content = [i for i in raw_content if i != ""]
        except:
            content = "UNKNOWN"

        return jsonify(title = song_title, author = song_author, content = content)
    else:
        return jsonify(error = "Invalid argument")