Python Requests get doesn't return unless a timeout is specified -


this request never returns (or @ least not within patience):

import requests r = requests.get('http://en.wikipedia.org/w/api.php?rcprop=ids&format=json&action=query&rclimit=10&rctype=edit&list=recentchanges&rcnamespace=0', headers={'user-agent': 'api test'})

hitting ctrl+c produces traceback:

^ctraceback (most recent call last):   file "<stdin>", line 1, in <module>   file "/usr/lib/python2.7/dist-packages/requests/api.py", line 55, in     return request('get', url, **kwargs)   file "/usr/lib/python2.7/dist-packages/requests/api.py", line 44, in request     return session.request(method=method, url=url, **kwargs)   file "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 383, in request     resp = self.send(prep, **send_kwargs)   file "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 486, in send     r = adapter.send(request, **kwargs)   file "/usr/lib/python2.7/dist-packages/requests/adapters.py", line 330, in send     timeout=timeout   file "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 542, in urlopen     body=body, headers=headers)   file "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 367, in _make_request     conn.request(method, url, **httplib_request_kw)   file "/usr/lib/python2.7/httplib.py", line 973, in request     self._send_request(method, url, body, headers)   file "/usr/lib/python2.7/httplib.py", line 1007, in _send_request     self.endheaders(body)   file "/usr/lib/python2.7/httplib.py", line 969, in endheaders     self._send_output(message_body)   file "/usr/lib/python2.7/httplib.py", line 829, in _send_output     self.send(msg)   file "/usr/lib/python2.7/httplib.py", line 791, in send     self.connect()   file "/usr/lib/python2.7/httplib.py", line 772, in connect     self.timeout, self.source_address)   file "/usr/lib/python2.7/socket.py", line 562, in create_connection     sock.connect(sa)   file "/usr/lib/python2.7/socket.py", line 224, in meth     return getattr(self._sock,name)(*args)

adding timeout=5 request causes request succeed, after timeout has expired (ie correct data returned api request). of course adds 5 seconds of latency application every api request.

what's going wrong here?

this due ipv6 not working on network. httplib (and therefore requests) seems prefer ipv6 if it's available, if it's not working can have long wait while ipv6 request times out. setting timeout causes fall ipv4 following expiry of timeout, succeeds. disabling ipv6 on network has fixed (as, assume, fixing ipv6).


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