[issue22572] NoneType object is not iterable error when asyncio Server.close() called
STINNER Victor
report at bugs.python.org
Tue Oct 7 11:59:12 CEST 2014
STINNER Victor added the comment:
Oh, I didn't notice that waiter_bug.py does nothing :-) I added "unittest.main()". With PYTHONASYNCIODEBUG=1, I get *two* errors, maybe we don't need to add more checks in debug mode.
Again, maybe the debug mode should be better documented?
https://docs.python.org/dev/library/asyncio-dev.html#debug-mode-of-asyncio
Currently, it's at the end of the documentation.
ERROR:asyncio:<CoroWrapper Server.wait_closed() running at /home/haypo/prog/python/default/Lib/asyncio/base_events.py:143, created at waiter_bug.py:32> was never yielded from
Coroutine object created at (most recent call last):
File "waiter_bug.py", line 43, in <module>
unittest.main()
File "/home/haypo/prog/python/default/Lib/unittest/main.py", line 93, in __init__
self.runTests()
File "/home/haypo/prog/python/default/Lib/unittest/main.py", line 244, in runTests
self.result = testRunner.run(self.test)
File "/home/haypo/prog/python/default/Lib/unittest/runner.py", line 168, in run
test(result)
File "/home/haypo/prog/python/default/Lib/unittest/suite.py", line 87, in __call__
return self.run(*args, **kwds)
File "/home/haypo/prog/python/default/Lib/unittest/suite.py", line 125, in run
test(result)
File "/home/haypo/prog/python/default/Lib/unittest/suite.py", line 87, in __call__
return self.run(*args, **kwds)
File "/home/haypo/prog/python/default/Lib/unittest/suite.py", line 125, in run
test(result)
File "/home/haypo/prog/python/default/Lib/unittest/case.py", line 625, in __call__
return self.run(*args, **kwds)
File "/home/haypo/prog/python/default/Lib/unittest/case.py", line 582, in run
self.doCleanups()
File "/home/haypo/prog/python/default/Lib/unittest/case.py", line 618, in doCleanups
function(*args, **kwargs)
File "waiter_bug.py", line 32, in _stop_server
self.server.wait_closed()
DEBUG:asyncio:Using selector: EpollSelector
E
======================================================================
ERROR: test_version (__main__.Test)
----------------------------------------------------------------------
Traceback (most recent call last):
File "waiter_bug.py", line 33, in _stop_server
self.server_loop.stop()
File "/home/haypo/prog/python/default/Lib/asyncio/base_events.py", line 285, in stop
self.call_soon(_raise_stop_error)
File "/home/haypo/prog/python/default/Lib/asyncio/base_events.py", line 373, in call_soon
handle = self._call_soon(callback, args, check_loop=True)
File "/home/haypo/prog/python/default/Lib/asyncio/base_events.py", line 382, in _call_soon
self._assert_is_current_event_loop()
File "/home/haypo/prog/python/default/Lib/asyncio/base_events.py", line 404, in _assert_is_current_event_loop
"Non-thread-safe operation invoked on an event loop other "
RuntimeError: Non-thread-safe operation invoked on an event loop other than the current one
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<http://bugs.python.org/issue22572>
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