main.py

#!/usr/bin/env python3

import requests
import configparser
import time
import os

def authenticate():
        authUrl = 'https://accounts.spotify.com/api/token'
        data = {
                'grant_type': 'refresh_token',
                'refresh_token': f'{refreshToken}',
                'Content-Type': 'application/x-www-form-urlencoded',
                'client_id': f'{clientId}',
                'client_secret': f'{clientSecret}'
        }
        r = (requests.post(authUrl, data=data))
        token = r.json()['access_token']
        return token

def extractTracks(response):
        tracks = response['items']
        output = ''

        for t in tracks:
                unseparatedArtists = []
                searchArtists = t['track']['artists']
                for a in searchArtists:
                        unseparatedArtists.append(a['name'])

                mySong = t['track']['name']
                myAlbum = t['track']['album']['name']
                myArtists = ', '.join(unseparatedArtists)

                output += f'{myArtists} - {myAlbum} - {mySong}\n'

        return output

def processPlaylists(playlist, token, date, datePrefix):
        headers = {
                'Authorization': f'Bearer {token}',
                'Content-Type': 'application/json',
                'Accept': 'application/json'
        }
        baseUrl = f'https://api.spotify.com/v1/playlists/{playlist}/tracks?fields=items(track(name%2Cartists(name)%2Calbum(name))),next'
        doloop = True

        result = ''
        while doloop:
                r = requests.get(baseUrl, headers=headers)
                response = r.json()
                result += extractTracks(response)

                if response['next'] is not None:
                        baseUrl = response['next']
                else:
                        doloop = False
                        if datePrefix:
                                with open(f'{outputFolder}/{date}{playlist}.txt', 'w', encoding='utf-8') as f:
                                        print(result, end='', file=f)
                        else:
                                with open(f'{outputFolder}/{playlist}.txt', 'w', encoding='utf-8') as f:
                                        print(result, end='', file=f)


config = configparser.ConfigParser()
config.read(os.path.join(os.path.dirname(__file__), 'config.ini'))

playlists = config['main']['playlists'].split(", ")
outputFolder = config['main']['output_folder']
datePrefix = config.getboolean('filename', 'date_prefix')
clientId = config['auth']['client_id']
clientSecret = config['auth']['client_secret']
refreshToken = config['auth']['refresh_token']

date = time.strftime("%Y%m%d-")

token = authenticate()
for p in playlists:
        processPlaylists(p, token, date, datePrefix)