runtime error

f.sock = self._create_connection( File "/usr/local/lib/python3.8/socket.py", line 787, in create_connection for res in getaddrinfo(host, port, 0, SOCK_STREAM): File "/usr/local/lib/python3.8/socket.py", line 918, 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 "app.py", line 51, in <module> resnet = models.resnet101(pretrained=True) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/resnet.py", line 342, in resnet101 return _resnet("resnet101", Bottleneck, [3, 4, 23, 3], pretrained, progress, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/resnet.py", line 296, in _resnet state_dict = load_state_dict_from_url(model_urls[arch], progress=progress) File "/home/user/.local/lib/python3.8/site-packages/torch/hub.py", line 591, in load_state_dict_from_url download_url_to_file(url, cached_file, hash_prefix, progress=progress) File "/home/user/.local/lib/python3.8/site-packages/torch/hub.py", line 457, in download_url_to_file u = urlopen(req) File "/usr/local/lib/python3.8/urllib/request.py", line 222, in urlopen return opener.open(url, data, timeout) File "/usr/local/lib/python3.8/urllib/request.py", line 525, in open response = self._open(req, data) File "/usr/local/lib/python3.8/urllib/request.py", line 542, in _open result = self._call_chain(self.handle_open, protocol, protocol + File "/usr/local/lib/python3.8/urllib/request.py", line 502, in _call_chain result = func(*args) File "/usr/local/lib/python3.8/urllib/request.py", line 1397, in https_open return self.do_open(http.client.HTTPSConnection, req, File "/usr/local/lib/python3.8/urllib/request.py", line 1357, in do_open raise URLError(err) urllib.error.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>

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