Traceback (most recent call last):


 "/home/username/anaconda3/lib/python3.5/site-packages/tensorflow/python/client/session.py", line 696, in __del__
TypeError: 'NoneType' object is not callable`
Traceback (most recent call last):


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/nose/case.py", line 198, in runTest

self.test(*self.arg)


 "/Users/nsutton/Code/moto/moto/core/models.py", line 71, in wrapper

result = func(*args, **kwargs)


 "/Users/nsutton/Code/moto/tests/test_sqs/test_sqs.py", line 1213, in test_receive_message_for_queue_with_receive_message_wait_time_seconds_set

queue.receive_messages()


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/boto3/resources/factory.py", line 520, in do_action

response = action(self, *args, **kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/boto3/resources/action.py", line 83, in __call__

response = getattr(parent.meta.client, operation_name)(**params)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/client.py", line 314, in _api_call

return self._make_api_call(operation_name, kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/client.py", line 599, in _make_api_call

operation_model, request_dict)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/endpoint.py", line 148, in make_request

return self._send_request(request_dict, operation_model)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/endpoint.py", line 177, in _send_request

success_response, exception):


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/endpoint.py", line 273, in _needs_retry

caught_exception=caught_exception, request_dict=request_dict)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/hooks.py", line 227, in emit

return self._emit(event_name, kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/hooks.py", line 210, in _emit

response = handler(**kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 183, in __call__

if self._checker(attempts, response, caught_exception):


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 251, in __call__

caught_exception)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 269, in _should_retry

return self._checker(attempt_number, response, caught_exception)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 317, in __call__

caught_exception)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 223, in __call__

attempt_number, caught_exception)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/retryhandler.py", line 359, in _check_caught_exception

raise caught_exception


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/endpoint.py", line 222, in _get_response

proxies=self.proxies, timeout=self.timeout)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/botocore/vendored/requests/sessions.py", line 573, in send

r = adapter.send(request, **kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/responses.py", line 572, in unbound_on_send

return self._on_request(adapter, request, *a, **kwargs)


 "/Users/nsutton/.asdf/installs/python/3.6.6/lib/python3.6/site-packages/responses.py", line 548, in _on_request

match.get_response(request), )


 "/Users/nsutton/Code/moto/moto/core/models.py", line 137, in get_response

result = self.callback(request)


 "/Users/nsutton/Code/moto/moto/core/utils.py", line 172, in __call__

result = self.callback(request, request.url, request.headers)


 "/Users/nsutton/Code/moto/moto/core/responses.py", line 117, in dispatch

return cls()._dispatch(*args, **kwargs)


 "/Users/nsutton/Code/moto/moto/core/responses.py", line 200, in _dispatch

return self.call_action()


 "/Users/nsutton/Code/moto/moto/core/utils.py", line 231, in _wrapper

response = f(*args, **kwargs)


 "/Users/nsutton/Code/moto/moto/core/utils.py", line 263, in _wrapper

response = f(*args, **kwargs)


 "/Users/nsutton/Code/moto/moto/sqs/responses.py", line 62, in call_action

status_code, headers, body = super(SQSResponse, self).call_action()


 "/Users/nsutton/Code/moto/moto/core/responses.py", line 274, in call_action

response = method()


 "/Users/nsutton/Code/moto/moto/sqs/responses.py", line 341, in receive_message

if wait_time < 0 or wait_time > 20:
TypeError: '<' not supported between instances of 'str' and 'int'
