Script exit with no output

Traceback (most recent call last):
  File "./venv/lib/python3.7/site-packages/urllib3/connection.py", line 160, in _new_conn
    (self._dns_host, self.port), self.timeout, **extra_kw
  File "./venv/lib/python3.7/site-packages/urllib3/util/connection.py", line 61, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
  File "/usr/lib/python3.7/socket.py", line 748, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./venv/lib/python3.7/site-packages/urllib3/connectionpool.py", line 677, in urlopen
    chunked=chunked,
  File "./venv/lib/python3.7/site-packages/urllib3/connectionpool.py", line 381, in _make_request
    self._validate_conn(conn)
  File "./venv/lib/python3.7/site-packages/urllib3/connectionpool.py", line 976, in _validate_conn
    conn.connect()
  File "./venv/lib/python3.7/site-packages/urllib3/connection.py", line 308, in connect
    conn = self._new_conn()
  File "./venv/lib/python3.7/site-packages/urllib3/connection.py", line 172, in _new_conn
    self, "Failed to establish a new connection: %s" % e
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0x7f477d9bcf98>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./venv/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
    timeout=timeout
  File "./venv/lib/python3.7/site-packages/urllib3/connectionpool.py", line 725, in urlopen
    method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
  File "./venv/lib/python3.7/site-packages/urllib3/util/retry.py", line 439, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.bbc.com', port=443): Max retries exceeded with url: /russian (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f477d9bcf98>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "src/tgnews.py", line 3, in <module>
    from tgnews_server import TGNewsServer
  File "./src/tgnews_server.py", line 32, in <module>
    tgnews_server_classifier = TGNewsServerClassifier()
  File "./src/tgnews_server.py", line 21, in __init__
    self.classifier_configs = ClassifierConfigs(True)
  File "./src/configs.py", line 55, in __init__
    actual_threads_for_russian = self.get_actual_news_threads_for_russian()
  File "./src/configs.py", line 17, in get_actual_news_threads_for_russian
    fetch_res = requests.get('https://www.bbc.com/russian', verify=False)
  File "./venv/lib/python3.7/site-packages/requests/api.py", line 76, in get
    return request('get', url, params=params, **kwargs)
  File "./venv/lib/python3.7/site-packages/requests/api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "./venv/lib/python3.7/site-packages/requests/sessions.py", line 530, in request
    resp = self.send(prep, **send_kwargs)
  File "./venv/lib/python3.7/site-packages/requests/sessions.py", line 643, in send
    r = adapter.send(request, **kwargs)
  File "./venv/lib/python3.7/site-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='www.bbc.com', port=443): Max retries exceeded with url: /russian (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f477d9bcf98>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution'))