SSL Handshare Errors

[RebelCoder]

Hello everyone!

I am trying to access some DB with requests, and this code worked about a month ago:

print(f"\n[Protein function based on www.uniprot.org DB]:")
protein_db = {}
with open("materials/protein_db.txt", 'r') as f:
    for line in f:
        protein_db[line[-11:-5]] = line.strip()

pattern = re.compile(r'\bP:(.*);')
for protein, url in protein_db.items():
    protein_db = requests.get(url, timeout=20)
    result = pattern.finditer(protein_db.text)

But now fails and shows the following error:

Error:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 453, in wrap_socket
    cnx.do_handshake()
  File "/home/jurisl/.local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1915, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "/home/jurisl/.local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1647, in _raise_ssl_error
    _raise_current_error()
  File "/home/jurisl/.local/lib/python3.7/site-packages/OpenSSL/_util.py", line 54, in exception_from_error_queue
    raise exception_type(errors)
OpenSSL.SSL.Error: [('SSL routines', 'ssl3_read_bytes', 'sslv3 alert handshake failure')]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 841, in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 344, in connect
    ssl_context=context)
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 344, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 459, in wrap_socket
    raise ssl.SSLError('bad handshake: %r' % e)
ssl.SSLError: ("bad handshake: Error([('SSL routines', 'ssl3_read_bytes', 'sslv3 alert handshake failure')])",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 398, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.uniprot.org', port=443): Max retries exceeded with url: /uniprot/B5ZC00.txt (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'ssl3_read_bytes', 'sslv3 alert handshake failure')])")))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/media/Work/Work/Rosalind/bio_armory.py", line 23, in <module>
    protein_db = requests.get(url, timeout=20)
  File "/usr/lib/python3/dist-packages/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='www.uniprot.org', port=443): Max retries exceeded with url: /uniprot/B5ZC00.txt (Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'ssl3_read_bytes', 'sslv3 alert handshake failure')])")))

I found that I needed the following libs, pip-installed:
pyOpenSSL
ndg-httpsclient
pyasn1

Installing/re-installing them did not solve the issue.
Any ideas/suggestions ?

Regards.