File "/home/cmin/Repos/skillin/lib/requests/sessions.py", line 555, in post
    return self.request('POST', url, data=data, json=json, **kwargs)
  File "/home/cmin/Repos/skillin/lib/requests/sessions.py", line 508, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/cmin/Repos/skillin/lib/requests/sessions.py", line 618, in send
    r = adapter.send(request, **kwargs)
  File "/home/cmin/Repos/skillin/lib/requests/adapters.py", line 440, in send
    timeout=timeout
  File "/home/cmin/Repos/skillin/lib/urllib3/connectionpool.py", line 589, in urlopen
    conn = self._get_conn(timeout=pool_timeout)
  File "/home/cmin/Repos/skillin/lib/urllib3/connectionpool.py", line 242, in _get_conn
    if conn and is_connection_dropped(conn):
  File "/home/cmin/Repos/skillin/lib/urllib3/util/connection.py", line 27, in is_connection_dropped
    return bool(wait_for_read(sock, timeout=0.0))
  File "/home/cmin/Repos/skillin/lib/urllib3/util/wait.py", line 33, in wait_for_read
    return _wait_for_io_events(socks, EVENT_READ, timeout)
  File "/home/cmin/Repos/skillin/lib/urllib3/util/wait.py", line 26, in _wait_for_io_events
    selector.select(timeout) if key[1] & events]
  File "/home/cmin/Repos/skillin/lib/urllib3/util/selectors.py", line 320, in select
    self._writers, timeout)
  File "/home/cmin/Repos/skillin/lib/urllib3/util/selectors.py", line 94, in _syscall_wrapper
    result = func(*args, **kwargs)
  File "/home/cmin/Repos/skillin/lib/urllib3/util/selectors.py", line 310, in _select
    return select.select(r, w, [], timeout)
  File "/opt/google-cloud-sdk/platform/google_appengine/google/appengine/api/remote_socket/_remote_socket.py", line 483, in select
    _SetState(request, _GetSocket(value), POLLIN)
  File "/opt/google-cloud-sdk/platform/google_appengine/google/appengine/api/remote_socket/_remote_socket.py", line 425, in _GetSocket
    raise ValueError('select only supported on socket objects.')
ValueError: select only supported on socket objects.