使用python的requests进行post，之前一直没有问题，昨天刚出现，报错如下 Traceback (most recent call last):   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen     httplib_response = self._make_request(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 381, in _make_request     self._validate_conn(conn)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 976, in _validate_conn     conn.connect()   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connection.py", line 361, in connect     self.sock = ssl_wrap_socket(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/util/ssl_.py", line 377, in ssl_wrap_socket     return context.wrap_socket(sock, server_hostname=server_hostname)   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 500, in wrap_socket     return self.sslsocket_class._create(   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 1040, in _create     self.do_handshake()   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 1309, in do_handshake     self._sslobj.do_handshake() ConnectionResetError: [Errno 104] Connection reset by peer During handling of the above exception, another exception occurred: Traceback (most recent call last):   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/adapters.py", line 439, in send     resp = conn.urlopen(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 724, in urlopen     retries = retries.increment(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/util/retry.py", line 403, in increment     raise six.reraise(type(error), error, _stacktrace)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/packages/six.py", line 734, in reraise     raise value.with_traceback(tb)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen     httplib_response = self._make_request(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 381, in _make_request     self._validate_conn(conn)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connectionpool.py", line 976, in _validate_conn     conn.connect()   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/connection.py", line 361, in connect     self.sock = ssl_wrap_socket(   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/urllib3/util/ssl_.py", line 377, in ssl_wrap_socket     return context.wrap_socket(sock, server_hostname=server_hostname)   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 500, in wrap_socket     return self.sslsocket_class._create(   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 1040, in _create     self.do_handshake()   File "/home/yong_sun/Python-3.8.3/lib/python3.8/ssl.py", line 1309, in do_handshake     self._sslobj.do_handshake() urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer')) During handling of the above exception, another exception occurred: Traceback (most recent call last):   File "<stdin>", line 1, in <module>   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/api.py", line 119, in post     return request('post', url, data=data, json=json, **kwargs)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/api.py", line 61, in request     return session.request(method=method, url=url, **kwargs)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/sessions.py", line 530, in request     resp = self.send(prep, **send_kwargs)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/sessions.py", line 643, in send     r = adapter.send(request, **kwargs)   File "/home/yong_sun/bin/workflow/venv/lib/python3.8/site-packages/requests/adapters.py", line 498, in send     raise ConnectionError(err, request=request) requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer'))