Connection is being broken for long downloading sessions

[KhazAkar]

Hi,
I wanted to download my rather big collection from packtpub (~430 books) and after some long time this errors end execution of script.
Python 3.9, Fedora 33.
`
Traceback (most recent call last):###############################################1 | 292k/423k [01:39<00:43, 2.99kKB/s]
File "/usr/local/lib/python3.9/site-packages/urllib3/contrib/pyopenssl.py", line 294, in recv_into
return self.connection.recv_into(*args, **kwargs)
File "/usr/lib/python3.9/site-packages/OpenSSL/SSL.py", line 1840, in recv_into
self._raise_ssl_error(self._ssl, result)
File "/usr/lib/python3.9/site-packages/OpenSSL/SSL.py", line 1663, in _raise_ssl_error
raise SysCallError(errno, errorcode.get(errno))
OpenSSL.SSL.SysCallError: (104, 'ECONNRESET')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/urllib3/response.py", line 360, in _error_catcher
yield
File "/usr/local/lib/python3.9/site-packages/urllib3/response.py", line 442, in read
data = self._fp.read(amt)
File "/usr/lib64/python3.9/http/client.py", line 458, in read
n = self.readinto(b)
File "/usr/lib64/python3.9/http/client.py", line 502, in readinto
n = self.fp.readinto(b)
File "/usr/lib64/python3.9/socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "/usr/local/lib/python3.9/site-packages/urllib3/contrib/pyopenssl.py", line 299, in recv_into
raise SocketError(str(e))
OSError: (104, 'ECONNRESET')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/requests/models.py", line 750, in generate
for chunk in self.raw.stream(chunk_size, decode_content=True):
File "/usr/local/lib/python3.9/site-packages/urllib3/response.py", line 494, in stream
data = self.read(amt=amt, decode_content=decode_content)
File "/usr/local/lib/python3.9/site-packages/urllib3/response.py", line 459, in read
raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
File "/usr/lib64/python3.9/contextlib.py", line 135, in exit
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python3.9/site-packages/urllib3/response.py", line 378, in _error_catcher
raise ProtocolError('Connection broken: %r' % e, e)
urllib3.exceptions.ProtocolError: ('Connection broken: OSError("(104, 'ECONNRESET')")', OSError("(104, 'ECONNRESET')"))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/khazakar/downloadedwithgit/packtpub-downloader/main.py", line 226, in
main(sys.argv[1:])
File "/home/khazakar/downloadedwithgit/packtpub-downloader/main.py", line 218, in main
download_book(filename, url)
File "/home/khazakar/downloadedwithgit/packtpub-downloader/main.py", line 111, in download_book
for chunk in tqdm(r.iter_content(chunk_size=1024), total=math.ceil(total//1024), unit='KB', unit_scale=True):
File "/usr/local/lib/python3.9/site-packages/tqdm/_tqdm.py", line 1000, in iter
for obj in iterable:
File "/usr/local/lib/python3.9/site-packages/requests/models.py", line 753, in generate
raise ChunkedEncodingError(e)
requests.exceptions.ChunkedEncodingError: ('Connection broken: OSError("(104, 'ECONNRESET')")', OSError("(104, 'ECONNRESET')"))
`