continue if download fails

backup_films.py

@@ -64,7 +64,10 @@ if __name__ == '__main__':
             if not os.path.exists(abspath):
                 url = 'https://%s/%s/download/source/%s' % (site, id, part)
                 print('downloading', abspath[len(target):])
+                try:
                     api.save_url(url, abspath)
+                except:
+                    print('failed to download', url)
             keep.append(unicodedata.normalize('NFD', abspath))
 
     for root, folders, files in os.walk(target):