出现以下错误是什么原因？
['4065529837148919']
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Exception in thread Thread-51:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/
connection.py", line 137, in _new_conn
(self.host, self.port), self.timeout, **extra_kw)
File "/usr/lib/python3/dist-packages/urllib3/util/
connection.py", line 67, in create_connection
for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
File "/usr/lib/python3.5/
socket.py", line 732, 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 "/usr/lib/python3/dist-packages/urllib3/
connectionpool.py", line 559, in urlopen
body=body, headers=headers)
File "/usr/lib/python3/dist-packages/urllib3/
connectionpool.py", line 353, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.5/http/
client.py", line 1106, in request
self._send_request(method, url, body, headers)
File "/usr/lib/python3.5/http/
client.py", line 1151, in _send_request
self.endheaders(body)
File "/usr/lib/python3.5/http/
client.py", line 1102, in endheaders
self._send_output(message_body)
File "/usr/lib/python3.5/http/
client.py", line 934, in _send_output
self.send(msg)
File "/usr/lib/python3.5/http/
client.py", line 877, in send
self.connect()
File "/usr/lib/python3/dist-packages/urllib3/
connection.py", line 162, in connect
conn = self._new_conn()
File "/usr/lib/python3/dist-packages/urllib3/
connection.py", line 146, in _new_conn
self, "Failed to establish a new connection: %s" % e)
requests.packages.urllib3.exceptions.NewConnectionError: <requests.packages.urllib3.connection.HTTPConnection object at 0x7f6d60069b00>: 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 "/usr/lib/python3/dist-packages/requests/
adapters.py", line 376, in send
timeout=timeout