New submission from Timur Irmatov <irma...@gmail.com>:
Sometimes during shutdown of our simple http server based on asyncio/ aiohttp
we get following stack trace:
ERROR [2018-01-24 08:28:33,398]: Exception in default exception handler
while handling an unexpected error in custom exception handler
Traceback (most recent call last):
File "/opt/alt/python35/lib64/python3.5/asyncio/base_events.py", line 1293,
in call_exception_handler
self._exception_handler(self, context)
File "/opt/alt/python35/bin/imunify360-captchaserver", line 640, in
_error_handler
loop.default_exception_handler(context)
File "/opt/alt/python35/lib64/python3.5/asyncio/base_events.py", line 1256,
in default_exception_handler
value = repr(value)
File "/opt/alt/python35/lib64/python3.5/asyncio/futures.py", line 213, in
__repr__
info = self._repr_info()
File "/opt/alt/python35/lib64/python3.5/asyncio/tasks.py", line 96, in
_repr_info
info = super()._repr_info()
File "/opt/alt/python35/lib64/python3.5/asyncio/futures.py", line 205, in
_repr_info
if self._callbacks:
AttributeError: 'Task' object has no attribute '_callbacks'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/alt/python35/lib64/python3.5/asyncio/base_events.py", line 1301,
in call_exception_handler
'context': context,
File "/opt/alt/python35/lib64/python3.5/asyncio/base_events.py", line 1256,
in default_exception_handler
value = repr(value)
File "/opt/alt/python35/lib64/python3.5/asyncio/futures.py", line 213, in
__repr__
info = self._repr_info()
File "/opt/alt/python35/lib64/python3.5/asyncio/tasks.py", line 96, in
_repr_info
info = super()._repr_info()
File "/opt/alt/python35/lib64/python3.5/asyncio/futures.py", line 205, in
_repr_info
if self._callbacks:
AttributeError: 'Task' object has no attribute '_callbacks'
Is this some bug or consequence of our code not cancelling/ waiting for all
coroutines?
----------
components: asyncio
messages: 310616
nosy: Timur Irmatov, asvetlov, yselivanov
priority: normal
severity: normal
status: open
title: AttributeError: 'Task' object has no attribute '_callbacks'
type: behavior
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32653>
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