I cannot connect and access DSS REST API through Python code

Hi,

I am trying to use Python to access DSS REST API and I got the result all time correctly. But in recent days, I got the error about SSLError. I am not sure what happened. Could you please help to see whether my account issue or DSS REST API issue?

Here is the code:

import requests, json
from requests import Request, Session
from collections import OrderedDict
urlGetToken = 'https://hosted.datascopeapi.reuters.com/RestApi/v1/Authentication/RequestToken'
header1 = {'Content-Type': 'application/json'}
tokenRequestBody = json.dumps({'Credentials': {'Password': '<password>', 'Username': '<username>'}})
response = requests.post(urlGetToken, tokenRequestBody, headers = header1)
statusCode = response.status_code
if statusCode != 200:
    print('ERROR: Get Token failed with HTTP status code: ' + str(statusCode))
    sys.exit(-1)
else:
    result = response.json()
    token = result['value']
    print(token)

Here is the error message thrown from Python

---------------------------------------------------------------------------
SysCallError                              Traceback (most recent call last)
/anaconda3/lib/python3.6/site-packages/urllib3/contrib/pyopenssl.py in wrap_socket(self, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname)
    440             try:
--> 441cnx.do_handshake()
    442             except OpenSSL.SSL.WantReadError:

/anaconda3/lib/python3.6/site-packages/OpenSSL/SSL.py in do_handshake(self)
   1805         result = _lib.SSL_do_handshake(self._ssl)
-> 1806self._raise_ssl_error(self._ssl, result)
   1807 

/anaconda3/lib/python3.6/site-packages/OpenSSL/SSL.py in _raise_ssl_error(self, ssl, result)
   1537                     if errno != 0:
-> 1538raise SysCallError(errno, errorcode.get(errno))
   1539                 raise SysCallError(-1, "Unexpected EOF")

SysCallError: (54, 'ECONNRESET')

During handling of the above exception, another exception occurred:

SSLError                                  Traceback (most recent call last)
/anaconda3/lib/python3.6/site-packages/urllib3/connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
    600                                                   body=body, headers=headers,
--> 601                                                   chunked=chunked)
    602 

/anaconda3/lib/python3.6/site-packages/urllib3/connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
    345         try:
--> 346self._validate_conn(conn)
    347         except (SocketTimeout, BaseSSLError) as e:

/anaconda3/lib/python3.6/site-packages/urllib3/connectionpool.py in _validate_conn(self, conn)
    849         if not getattr(conn, 'sock', None):  # AppEngine might not have  `.sock`
--> 850conn.connect()
    851 

/anaconda3/lib/python3.6/site-packages/urllib3/connection.py in connect(self)
    325             server_hostname=hostname,
--> 326             ssl_context=context)
    327 

/anaconda3/lib/python3.6/site-packages/urllib3/util/ssl_.py in ssl_wrap_socket(sock, keyfile, certfile, cert_reqs, ca_certs, server_hostname, ssl_version, ciphers, ssl_context, ca_cert_dir)
    328     if HAS_SNI:  # Platform-specific: OpenSSL with enabled SNI
--> 329return context.wrap_socket(sock, server_hostname=server_hostname)
    330 

/anaconda3/lib/python3.6/site-packages/urllib3/contrib/pyopenssl.py in wrap_socket(self, sock, server_side, do_handshake_on_connect, suppress_ragged_eofs, server_hostname)
    447             except OpenSSL.SSL.Error as e:
--> 448raise ssl.SSLError('bad handshake: %r' % e)
    449             break

SSLError: ("bad handshake: SysCallError(54, 'ECONNRESET')",)

During handling of the above exception, another exception occurred:

MaxRetryError                             Traceback (most recent call last)
/anaconda3/lib/python3.6/site-packages/requests/adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
    439                     retries=self.max_retries,
--> 440timeout=timeout
    441                 )

/anaconda3/lib/python3.6/site-packages/urllib3/connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
    638             retries = retries.increment(method, url, error=e, _pool=self,
--> 639                                         _stacktrace=sys.exc_info()[2])
    640             retries.sleep()

/anaconda3/lib/python3.6/site-packages/urllib3/util/retry.py in increment(self, method, url, response, error, _pool, _stacktrace)
    387         if new_retry.is_exhausted():
--> 388raise MaxRetryError(_pool, url, error or ResponseError(cause))
    389 

MaxRetryError: HTTPSConnectionPool(host='hosted.datascopeapi.reuters.com', port=443): Max retries exceeded with url: /RestApi/v1/Authentication/RequestToken (Caused by SSLError(SSLError("bad handshake: SysCallError(54, 'ECONNRESET')",),))

During handling of the above exception, another exception occurred:

SSLError                                  Traceback (most recent call last)
<ipython-input-4-ae8e97f611da> in <module>()
      6 header1 = {'Content-Type': 'application/json'}
      7 tokenRequestBody = json.dumps({'Credentials': {'Password': 'xxx', 'Username': 'xxx'}})
----> 8response = requests.post(urlGetToken, tokenRequestBody, headers = header1)
      9 statusCode = response.status_code
     10 if statusCode != 200:

/anaconda3/lib/python3.6/site-packages/requests/api.py in post(url, data, json, **kwargs)
    110     """
    111 
--> 112return request('post', url, data=data, json=json, **kwargs)
    113 
    114 

/anaconda3/lib/python3.6/site-packages/requests/api.py in request(method, url, **kwargs)
     56     # cases, and look like a memory leak in others.
     57     with sessions.Session() as session:
---> 58return session.request(method=method, url=url, **kwargs)
     59 
     60 

/anaconda3/lib/python3.6/site-packages/requests/sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
    506         }
    507         send_kwargs.update(settings)
--> 508resp = self.send(prep, **send_kwargs)
    509 
    510         return resp

/anaconda3/lib/python3.6/site-packages/requests/sessions.py in send(self, request, **kwargs)
    616 
    617         # Send the request
--> 618r = adapter.send(request, **kwargs)
    619 
    620         # Total elapsed time of the request (approximately)

/anaconda3/lib/python3.6/site-packages/requests/adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
    504             if isinstance(e.reason, _SSLError):
    505                 # This branch is for urllib3 v1.22 and later.
--> 506raise SSLError(e, request=request)
    507 
    508             raise ConnectionError(e, request=request)

SSLError: HTTPSConnectionPool(host='hosted.datascopeapi.reuters.com', port=443): Max retries exceeded with url: /RestApi/v1/Authentication/RequestToken (Caused by SSLError(SSLError("bad handshake: SysCallError(54, 'ECONNRESET')",),))