botocore: filedescriptor out of range in select() while calling message.delete

s = boto3.session.Session(aws_access_key_id=aws_access_key_id, aws_secret_access_key=aws_secret_access_key, region_name=region_name)
session = s.resource('sqs')

queue = sqs.get_queue_by_name(QueueName=queue_name)
while True:
    messages = queue.receive_messages(MaxNumberOfMessages=10, AttributeNames=['All'], MessageAttributeNames=['All'])
    if len(messages) == 0:
        break
    for message in messages:
        save_message(message)
        message.delete()

Stack Trace

Exception in thread Thread-4:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 763, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/ws/amazon/bin/sqs", line 59, in each_thread
    message.delete()
  File "/usr/local/lib/python2.7/dist-packages/boto3/resources/factory.py", line 455, in do_action
    response = action(self, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/boto3/resources/action.py", line 79, in __call__
    response = getattr(parent.meta.client, operation_name)(**params)
  File "/usr/local/lib/python2.7/dist-packages/botocore/client.py", line 310, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/usr/local/lib/python2.7/dist-packages/botocore/client.py", line 384, in _make_api_call
    operation_model, request_dict)
  File "/usr/local/lib/python2.7/dist-packages/botocore/endpoint.py", line 111, in make_request
    return self._send_request(request_dict, operation_model)
  File "/usr/local/lib/python2.7/dist-packages/botocore/endpoint.py", line 140, in _send_request
    success_response, exception):
  File "/usr/local/lib/python2.7/dist-packages/botocore/endpoint.py", line 213, in _needs_retry
    caught_exception=caught_exception)
  File "/usr/local/lib/python2.7/dist-packages/botocore/hooks.py", line 226, in emit
    return self._emit(event_name, kwargs)
  File "/usr/local/lib/python2.7/dist-packages/botocore/hooks.py", line 209, in _emit
    response = handler(**kwargs)
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 183, in __call__
    if self._checker(attempts, response, caught_exception):
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 250, in __call__
    caught_exception)
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 265, in _should_retry
    return self._checker(attempt_number, response, caught_exception)
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 313, in __call__
    caught_exception)
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 222, in __call__
    return self._check_caught_exception(attempt_number, caught_exception)
  File "/usr/local/lib/python2.7/dist-packages/botocore/retryhandler.py", line 355, in _check_caught_exception
    raise caught_exception
ValueError: filedescriptor out of range in select()