Fix release cover arts whose canonical URL has changed

fix_release_art.py

import requests
from multiprocessing import Pool
from model import Model, NotFound
from mb_api_import import get_album_art_urls

def safe_print(*args):
    try:
        print(*args)
    except:
        pass
        
def is_url_valid_and_live(url):
    try:
        return requests.head(url).status_code == 200
        
    except requests.RequestException:
        return False


def fix_release_art(mbid, release_id, title, full, thumb, n):
    if n % 50 == 0:
        print(n)
    
    if not mbid:
        safe_print("No mbid:", title)
        return
        
    if not (full and thumb):
        pass#return
        
    if all(is_url_valid_and_live(url) for url in [full, thumb]):
        return
    
    safe_print("Getting art for ", title)
    full, thumb = get_album_art_urls(mbid, group=False)
    print(full, thumb)
    
    with Model() as model:
        model.execute("update releases set full_art_url=?, thumb_art_url=?"
                      "where id=?", full, thumb, release_id)
    
if __name__ == '__main__':    
    with Model() as model:
        with Pool(processes=100) as pool:
            done = 0
            
            for release_id, title, full, thumb \
                in model.query("select id, title, full_art_url, thumb_art_url from releases"):
                mbid = model.get_link(release_id, "musicbrainz")
                pool.apply_async(fix_release_art, (mbid, release_id, title, full, thumb, done))
                done += 1
                
            pool.close()
            pool.join()