URLError: <urlopen error [Errno 110] Connection timed out>

[zhoufengfan]

When I run examples/lfw_evaluate.ipynb in the 12th code block, there occur this error:

---------------------------------------------------------------------------
TimeoutError                              Traceback (most recent call last)
/lib/python3.8/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
   1353             try:
-> 1354                 h.request(req.get_method(), req.selector, req.data, headers,
   1355                           encode_chunked=req.has_header('Transfer-encoding'))

/lib/python3.8/http/client.py in request(self, method, url, body, headers, encode_chunked)
   1255         """Send a complete request to the server."""
-> 1256         self._send_request(method, url, body, headers, encode_chunked)
   1257 

/lib/python3.8/http/client.py in _send_request(self, method, url, body, headers, encode_chunked)
   1301             body = _encode(body, 'body')
-> 1302         self.endheaders(body, encode_chunked=encode_chunked)
   1303 

/lib/python3.8/http/client.py in endheaders(self, message_body, encode_chunked)
   1250             raise CannotSendHeader()
-> 1251         self._send_output(message_body, encode_chunked=encode_chunked)
   1252 

/lib/python3.8/http/client.py in _send_output(self, message_body, encode_chunked)
   1010         del self._buffer[:]
-> 1011         self.send(msg)
   1012 

/lib/python3.8/http/client.py in send(self, data)
    950             if self.auto_open:
--> 951                 self.connect()
    952             else:

/lib/python3.8/http/client.py in connect(self)
   1417 
-> 1418             super().connect()
   1419 

/lib/python3.8/http/client.py in connect(self)
    921         """Connect to the host and port specified in __init__."""
--> 922         self.sock = self._create_connection(
    923             (self.host,self.port), self.timeout, self.source_address)

/lib/python3.8/socket.py in create_connection(address, timeout, source_address)
    807         try:
--> 808             raise err
    809         finally:

/lib/python3.8/socket.py in create_connection(address, timeout, source_address)
    795                 sock.bind(source_address)
--> 796             sock.connect(sa)
    797             # Break explicitly a reference cycle

TimeoutError: [Errno 110] Connection timed out

During handling of the above exception, another exception occurred:

URLError                                  Traceback (most recent call last)
/tmp/ipykernel_96110/651026656.py in <module>
      1 # Load pretrained resnet model
----> 2 resnet = InceptionResnetV1(
      3     classify=False,
      4     pretrained='vggface2'
      5 ).to(device)

/lib/python3.8/site-packages/facenet_pytorch/models/inception_resnet_v1.py in __init__(self, pretrained, classify, num_classes, dropout_prob, device)
    260         if pretrained is not None:
    261             self.logits = nn.Linear(512, tmp_classes)
--> 262             load_weights(self, pretrained)
    263 
    264         if self.classify and self.num_classes is not None:

/lib/python3.8/site-packages/facenet_pytorch/models/inception_resnet_v1.py in load_weights(mdl, name)
    325     cached_file = os.path.join(model_dir, os.path.basename(path))
    326     if not os.path.exists(cached_file):
--> 327         download_url_to_file(path, cached_file)
    328 
    329     state_dict = torch.load(cached_file)

/lib/python3.8/site-packages/facenet_pytorch/models/utils/download.py in download_url_to_file(url, dst, hash_prefix, progress)
     60     # certificates in older Python
     61     req = Request(url, headers={"User-Agent": "torch.hub"})
---> 62     u = urlopen(req)
     63     meta = u.info()
     64     if hasattr(meta, 'getheaders'):

/lib/python3.8/urllib/request.py in urlopen(url, data, timeout, cafile, capath, cadefault, context)
    220     else:
    221         opener = _opener
--> 222     return opener.open(url, data, timeout)
    223 
    224 def install_opener(opener):

/lib/python3.8/urllib/request.py in open(self, fullurl, data, timeout)
    523 
    524         sys.audit('urllib.Request', req.full_url, req.data, req.headers, req.get_method())
--> 525         response = self._open(req, data)
    526 
    527         # post-process response

/lib/python3.8/urllib/request.py in _open(self, req, data)
    540 
    541         protocol = req.type
--> 542         result = self._call_chain(self.handle_open, protocol, protocol +
    543                                   '_open', req)
    544         if result:

/lib/python3.8/urllib/request.py in _call_chain(self, chain, kind, meth_name, *args)
    500         for handler in handlers:
    501             func = getattr(handler, meth_name)
--> 502             result = func(*args)
    503             if result is not None:
    504                 return result

/lib/python3.8/urllib/request.py in https_open(self, req)
   1395 
   1396         def https_open(self, req):
-> 1397             return self.do_open(http.client.HTTPSConnection, req,
   1398                 context=self._context, check_hostname=self._check_hostname)
   1399 

/lib/python3.8/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
   1355                           encode_chunked=req.has_header('Transfer-encoding'))
   1356             except OSError as err: # timeout error
-> 1357                 raise URLError(err)
   1358             r = h.getresponse()
   1359         except:

URLError: <urlopen error [Errno 110] Connection timed out>