A socket timeout exception in Python 3 shows also a TypeError

When a timout occurs it also shows the TypeError because you first try to call it with a buffering keyword argument, which does not exist in Python 3. I’m not sure if there is a good way in Python 3 to clear that TypeError exception. See also #537.

ERROR: Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 331, 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/lib/python3/dist-packages/urllib3/connectionpool.py", line 333, in _make_request
    httplib_response = conn.getresponse()
  File "/usr/lib/python3.4/http/client.py", line 1172, in getresponse
    response.begin()
  File "/usr/lib/python3.4/http/client.py", line 351, in begin
    version, status, reason = self._read_status()
  File "/usr/lib/python3.4/http/client.py", line 313, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "/usr/lib/python3.4/socket.py", line 371, in readinto
    return self._sock.recv_into(b)
  File "/usr/lib/python3.4/ssl.py", line 745, in recv_into
    return self.read(nbytes, buffer)
  File "/usr/lib/python3.4/ssl.py", line 617, in read
    v = self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 362, in send
    timeout=timeout
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 559, in urlopen
    _pool=self, _stacktrace=stacktrace)
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 245, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "/usr/lib/python3/dist-packages/six.py", line 625, in reraise
    raise value
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 516, in urlopen
    body=body, headers=headers)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 336, in _make_request
    self, url, "Read timed out. (read timeout=%s)" % read_timeout)
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='commons.wikimedia.org', port=443): Read timed out. (read timeout=30)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/matanya/core/pywikibot/data/api.py", line 1911, in submit
    body=body, headers=headers)
  File "/home/matanya/core/pywikibot/tools/__init__.py", line 1227, in wrapper
    return obj(*__args, **__kw)
  File "/home/matanya/core/pywikibot/comms/http.py", line 240, in request
    r = fetch(baseuri, method, body, headers, **kwargs)
  File "/home/matanya/core/pywikibot/comms/http.py", line 359, in fetch
    error_handling_callback(request)
  File "/home/matanya/core/pywikibot/comms/http.py", line 276, in error_handling_callback
    raise request.data
  File "/home/matanya/core/pywikibot/comms/http.py", line 255, in _http_process
    auth=auth, timeout=timeout, verify=True)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 457, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 569, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 422, in send
    raise ReadTimeout(e, request=request)
requests.exceptions.ReadTimeout: HTTPSConnectionPool(host='commons.wikimedia.org', port=443): Read timed out. (read timeout=30)

[Lukasa]

Yeah, this is a known issue that causes lots of bug reports on Requests. There is no way to do anything about this, though: the CPython developers believe this is a feature, not a bug.

[jayvdb]

This was fixed in #861