AttributeError: 'NoneType' object has no attribute 'close'

[TheSnoozer]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.09.12.1
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Log

[download]  17.2% of ~3.93GiB at  3.83KiB/s ETA --:--:--Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/http.py", line 230, in download
    data_block = ctx.data.read(block_size if not is_test else min(block_size, data_len - byte_counter))
  File "/usr/lib/python3.6/http/client.py", line 459, in read
    n = self.readinto(b)
  File "/usr/lib/python3.6/http/client.py", line 503, in readinto
    n = self.fp.readinto(b)
  File "/usr/lib/python3.6/socket.py", line 586, in readinto
    return self._sock.recv_into(b)
  File "/usr/lib/python3.6/ssl.py", line 1012, in recv_into
    return self.read(nbytes, buffer)
  File "/usr/lib/python3.6/ssl.py", line 874, in read
    return self._sslobj.read(len, buffer)
  File "/usr/lib/python3.6/ssl.py", line 631, in read
    v = self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/__init__.py", line 474, in main
    _real_main(argv)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/__init__.py", line 464, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 2010, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 807, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 861, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 1642, in process_video_result
    self.process_info(new_info)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 1917, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/YoutubeDL.py", line 1856, in dl
    return fd.download(name, info)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/hls.py", line 148, in real_download
    ctx, frag_url, info_dict, headers)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/fragment.py", line 102, in _download_fragment
    'http_headers': headers or info_dict.get('http_headers'),
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/http.py", line 342, in real_download
    return download()
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/http.py", line 234, in download
    retry(e)
  File "/usr/local/lib/python3.6/dist-packages/youtube_dl/downloader/http.py", line 222, in retry
    ctx.stream.close()
AttributeError: 'NoneType' object has no attribute 'close'

Description

Use potato Internet and download with retry attempts (youtube-dl --retries 99999999999 --format 720p --keep-fragments URL). Some fragments could be downloaded already so I guess it seems to be a rare issue and doesn#t seem to be critical since I just can restart the download manually.