Spotify API无法获取Discover Weekly歌单问题求助

问题描述 #

我用Python编写了一个Flask应用，目的是自动将Spotify Discover Weekly中的歌曲保存到自定义歌单，但代码始终无法找到Discover Weekly歌单。目前代码能正常列出其他所有歌单，我也已经手动关注了Discover Weekly，但它就是不出现在API返回结果里。补充说明：有人建议检查返回结果的最大限制，但我的情况不适用——默认限制是50，而我总共只有41个歌单（包含Discover Weekly）。

原代码如下：

def save_discover_weekly(token_info):
    sp = spotipy.Spotify(auth=token_info['access_token'])
    cur_playlists = sp.current_user_playlists()['items']
    discover_weekly_id = None
    saved_weekly_id = None
    for playlist in cur_playlists:
        print(playlist['name'])
        if playlist['name'] == 'Discover Weekly':
            discover_weekly_id = playlist['id']
            print(discover_weekly_id)
            break
        if playlist['name'] == 'Saved Weekly':
            saved_weekly_id = playlist['id']
            print(saved_weekly_id)

    if discover_weekly_id is None:
        return "Discover Weekly not found"
    if not saved_weekly_id:
        print("Creating saved weekly playlist")
        saved_weekly = sp.user_playlist_create(sp.current_user()['id'],
                                               "Saved Weekly", True)
        saved_weekly_id = saved_weekly['id']

    discover_weekly_songs = sp.playlist_items(discover_weekly_id)
    song_uris = [song['track']['uri'] for song in discover_weekly_songs['items']]

    sp.user_playlist_add_tracks(sp.current_user()['id'], saved_weekly_id, 
                                song_uris)

    return "Discover Weekly songs saved to Saved Weekly playlist!"

问题原因 #

Spotify的current_user_playlists()接口默认仅返回用户自行创建的歌单，而Discover Weekly是Spotify官方生成的歌单，即使用户关注了它，也不会出现在该接口的返回结果中。要获取用户关注的所有歌单（包括官方歌单），需要调用current_user_followed_playlists()接口。

解决方案 #

修改代码，分开获取用户自己创建的歌单和关注的歌单：

1. 用current_user_playlists()找自定义的Saved Weekly歌单
2. 用current_user_followed_playlists()获取用户关注的所有歌单，从中查找Discover Weekly
3. 处理current_user_followed_playlists()的分页逻辑，确保不会遗漏歌单

修改后的代码：

def save_discover_weekly(token_info):
    sp = spotipy.Spotify(auth=token_info['access_token'])
    discover_weekly_id = None
    saved_weekly_id = None

    # 获取用户自行创建的歌单，查找Saved Weekly
    cur_playlists = sp.current_user_playlists()['items']
    for playlist in cur_playlists:
        print(playlist['name'])
        if playlist['name'] == 'Saved Weekly':
            saved_weekly_id = playlist['id']
            print(saved_weekly_id)
            break

    # 获取用户关注的所有歌单，查找Discover Weekly（处理分页）
    followed_playlists = []
    results = sp.current_user_followed_playlists(limit=50)
    followed_playlists.extend(results['items'])
    
    while results['next']:
        results = sp.next(results)
        followed_playlists.extend(results['items'])
    
    for item in followed_playlists:
        playlist = item['playlist']
        print(playlist['name'])
        if playlist['name'] == 'Discover Weekly':
            discover_weekly_id = playlist['id']
            print(discover_weekly_id)
            break

    if discover_weekly_id is None:
        return "Discover Weekly not found"
    if not saved_weekly_id:
        print("Creating saved weekly playlist")
        saved_weekly = sp.user_playlist_create(sp.current_user()['id'],
                                               "Saved Weekly", True)
        saved_weekly_id = saved_weekly['id']

    discover_weekly_songs = sp.playlist_items(discover_weekly_id)
    song_uris = [song['track']['uri'] for song in discover_weekly_songs['items']]

    sp.user_playlist_add_tracks(sp.current_user()['id'], saved_weekly_id, 
                                song_uris)

    return "Discover Weekly songs saved to Saved Weekly playlist!"

关键说明 #

• current_user_followed_playlists()的返回结构与current_user_playlists()不同，每个元素是包含playlist字段的字典，需要通过item['playlist']获取歌单详情
• 分页逻辑可以确保即使未来关注的歌单数量超过50，也能完整获取所有数据
• 分开处理两类歌单，既符合接口的设计逻辑，也能提升查找效率

内容的提问来源于stack exchange，提问作者Brandon Pardi