New submission from David Parks <davidpark...@gmail.com>:
Original question posted here: https://stackoverflow.com/questions/58019939/attributeerror-str-object-has-no-attribute-errno?noredirect=1#comment102443264_58019939 The following exception is encountered when placing an `aiohttp.client_exceptions.ClientConnectionError` on a `multiprocessing.Queue`. The problem appears to occur during deserialization. ``` Traceback (most recent call last): File "model_neural_simplified.py", line 318, in <module> main(**arg_parser()) File "model_neural_simplified.py", line 314, in main globals()[command](**kwargs) File "model_neural_simplified.py", line 304, in predict next_neural_data, next_sample = reader.get_next_result() File "/project_neural_mouse/src/asyncs3/s3reader.py", line 174, in get_next_result result = future.result() File "/usr/lib/python3.6/concurrent/futures/_base.py", line 432, in result return self.__get_result() File "/usr/lib/python3.6/concurrent/futures/_base.py", line 384, in __get_result raise self._exception File "/usr/lib/python3.6/concurrent/futures/thread.py", line 56, in run result = self.fn(*self.args, **self.kwargs) File "model_neural_simplified.py", line 245, in read_sample f_bytes = s3f.read(read_size) File "/project_neural_mouse/src/asyncs3/s3reader.py", line 374, in read size, b = self._issue_request(S3Reader.READ, (self.url, size, self.position)) File "/project_neural_mouse/src/asyncs3/s3reader.py", line 389, in _issue_request response = self.communication_channels[uuid].get() File "/usr/lib/python3.6/multiprocessing/queues.py", line 113, in get return _ForkingPickler.loads(res) File "/usr/local/lib/python3.6/dist-packages/aiohttp/client_exceptions.py", line 133, in __init__ super().__init__(os_error.errno, os_error.strerror) AttributeError: 'str' object has no attribute 'errno' ``` A similar issue is reproducible using the following code snippet: ``` import multiprocessing import aiohttp connection_key = aiohttp.client_reqrep.ConnectionKey ose = OSError('test') e = aiohttp.client_exceptions.ClientConnectorError(connection_key, ose) q = multiprocessing.Queue() q.put(e) q.get(e) ``` ---------- components: asyncio messages: 352818 nosy: asvetlov, davidparks21, yselivanov priority: normal severity: normal status: open title: ClientConnectionError exception doesn't serialize propertly type: crash versions: Python 3.6 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38229> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
