调用YouTube API时遭遇HttpError 403请求被拦截问题求助

我已将API令牌嵌入到YouTube API调用函数中，但仍收到HttpError 403响应。该函数直接复制自Google GitHub仓库中的search.py文件。

DEVELOPER_KEY = 'my_token_here'
YOUTUBE_API_SERVICE_NAME = 'youtube'
YOUTUBE_API_VERSION = 'v3'

def youtube_search():
  youtube = build(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION,
    developerKey=DEVELOPER_KEY)

  # Call the search.list method to retrieve results matching the specified
  # query term.
  search_response = youtube.search().list(
    #q=options.q,
    part='id,snippet',
    #maxResults=options.max_results
  ).execute()

  videos = []
  channels = []
  playlists = []

  # Add each result to the appropriate list, and then display the lists of
  # matching videos, channels, and playlists.
  for search_result in search_response.get('items', []):
    if search_result['id']['kind'] == 'youtube#video':
      videos.append('%s (%s)' % (search_result['snippet']['title'],
                                 search_result['id']['videoId']))
    elif search_result['id']['kind'] == 'youtube#channel':
      channels.append('%s (%s)' % (search_result['snippet']['title'],
                                   search_result['id']['channelId']))
    elif search_result['id']['kind'] == 'youtube#playlist':
      playlists.append('%s (%s)' % (search_result['snippet']['title'],
                                    search_result['id']['playlistId']))

  print('Videos:\n', '\n'.join(videos), '\n')
  print('Channels:\n', '\n'.join(channels), '\n')
  print('Playlists:\n', '\n'.join(playlists), '\n')

调用youtube_search函数时，出现如下错误：

<HttpError 403 when requesting https://youtube.googleapis.com/youtube/v3/search?part=id%2Csnippet&key='my_token'=json returned "Requests to this API youtube method youtube.api.v3.V3DataSearchService.List are blocked.". Details: "[{'message': 'Requests to this API youtube method youtube.api.v3.V3DataSearchService.List are blocked.', 'domain': 'global', 'reason': 'forbidden'}]">

排查解决思路 #

• 确认API服务已启用：登录Google Cloud控制台，检查YouTube Data API v3是否处于启用状态。未启用服务是触发403的常见原因。
• 验证API密钥限制规则：查看密钥的IP/HTTP referrer限制设置，确保当前运行代码的环境符合限制规则。本地测试可暂时关闭限制来验证问题。
• 检查API配额是否耗尽：YouTube Data API有每日调用配额，search.list接口的配额消耗较高。去控制台配额页面确认是否已用完当日额度。
• 核对请求参数：尝试取消q和maxResults的注释，填入合法参数（比如q="python"、maxResults=5）后重新测试，排除参数缺失导致的权限问题。
• 确认密钥正确性：再次检查DEVELOPER_KEY中的令牌是否与控制台生成的完全一致，避免引号、空格等输入错误。

内容的提问来源于stack exchange，提问作者Bryson Crimmins