我使用创建一个会话requests.Session()
。由于某种原因,服务器端关闭了此连接,所以我必须重新连接。问题是,这个会话在很多地方都使用,所以我想知道是否可以重建 TCP 连接但保留会话对象,以便我仍然可以使用它?
Example:
s = requests.Session()
class B:
def __init__(self, session):
self._session = session
def get(self):
self._session.get('some_url')
b1 = B(s)
b2 = B(s)
b3 = B(s)
# some get calls
...
# then connection is closed
# some get calls
...
如果我可以保留会话对象,则无需替换每个_session
在每一个B
实例。
错误日志:
Traceback (most recent call last):
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 376, in _make_request
httplib_response = conn.getresponse(buffering=True)
TypeError: getresponse() got an unexpected keyword argument 'buffering'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 559, in urlopen
body=body, headers=headers)
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 378, in _make_request
httplib_response = conn.getresponse()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 1174, in getresponse
response.begin()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 282, in begin
version, status, reason = self._read_status()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 243, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/socket.py", line 571, in readinto
return self._sock.recv_into(b)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 924, in recv_into
return self.read(nbytes, buffer)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 786, in read
return self._sslobj.read(len, buffer)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 570, in read
v = self._sslobj.read(len, buffer)
ConnectionResetError: [Errno 54] Connection reset by peer
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.5/site-packages/requests/adapters.py", line 376, in send
timeout=timeout
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 609, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/util/retry.py", line 247, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/packages/six.py", line 309, in reraise
raise value.with_traceback(tb)
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 559, in urlopen
body=body, headers=headers)
File "/usr/local/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 378, in _make_request
httplib_response = conn.getresponse()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 1174, in getresponse
response.begin()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 282, in begin
version, status, reason = self._read_status()
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 243, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/socket.py", line 571, in readinto
return self._sock.recv_into(b)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 924, in recv_into
return self.read(nbytes, buffer)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 786, in read
return self._sslobj.read(len, buffer)
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/ssl.py", line 570, in read
v = self._sslobj.read(len, buffer)
requests.packages.urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionResetError(54, 'Connection reset by peer'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/laike9m/ICT/zhihu-analysis/dynamic/main.py", line 108, in <module>
main()
File "/Users/laike9m/ICT/zhihu-analysis/dynamic/main.py", line 89, in main
m.detect_new_question()
File "/Users/laike9m/ICT/zhihu-analysis/dynamic/monitor.py", line 32, in detect_new_question
question = latest_question = next(it)
File "/usr/local/lib/python3.5/site-packages/zhihu/topic.py", line 269, in questions
res = self._session.get(question_url, params=params)
File "/usr/local/lib/python3.5/site-packages/requests/sessions.py", line 480, in get
return self.request('GET', url, **kwargs)
File "/usr/local/lib/python3.5/site-packages/requests/sessions.py", line 468, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python3.5/site-packages/requests/sessions.py", line 576, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python3.5/site-packages/requests/adapters.py", line 426, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionResetError(54, 'Connection reset by peer'))
这是一个非常常见的问题:Python处理socket.error:[Errno 104]连接被对等方重置 https://stackoverflow.com/questions/20568216/python-handling-socket-error-errno-104-connection-reset-by-peer。我无法控制服务器,所以我不知道为什么或如何发生这种情况。
服务器确实支持保持活动,因为我能够发出数百个请求(该期间持续一个小时或更长时间)。