headers = {}
headers['User-Agent'] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/79.0.3945.88 Safari/537.36"
api_key = "some-key"
channel_id = "some-channel-ID"

base_video_url = "https://www.youtube.com/watch?v="
base_search_url = 'https://wwww.googleapis.com/youtube/v3/search?'

url = base_search_url + 'part=snippet,id&order=date&maxResults=1&key={}&channelId={}'.format(api_key,channel_id)
req = urllib.request.Request(url,headers = headers)
inp = urllib.request.urlopen(req)
resp = json.loads(inp.read())

浏览以前的一些帖子，并发现相同的错误。然后，添加了用户代理，但错误仍然存​​在。任何帮助将不胜感激...