ERROR: Unable to download webpage: HTTP Error 429: Too Many Requests

[rbtcx]

D:>youtube-dl.exe --no-mtime --verbose -f worst https://www.youtube.com/watch?v=HE8h4wmtFGw
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--no-mtime', '--verbose', '-f', 'worst', 'https://www.youtube.com/watch?v=HE8h4wmtFGw']
[debug] Encodings: locale cp936, fs mbcs, out cp936, pref cp936
[debug] youtube-dl version 2019.09.12.1
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17134
[debug] exe versions: ffmpeg N-94619-gb29c7bcbf6
[debug] Proxy map: {'https': 'https://127.0.0.1:52679', 'http': 'http://127.0.0.1:52679', 'ftp': 'ftp://127.0.0.1:52679'}
[youtube] HE8h4wmtFGw: Downloading webpage
ERROR: Unable to download webpage: HTTP Error 429: Too Many Requests (caused by HTTPError()); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs4t\build\youtube_dl\extractor\common.py", line 627, in _request_webpage
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs4t\build\youtube_dl\YoutubeDL.py", line 2229, in urlopen
File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
File "C:\Python\Python34\lib\urllib\request.py", line 502, in error
File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
File "C:\Python\Python34\lib\urllib\request.py", line 685, in http_error_302
File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_default