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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[easy][asyncio] test_asyncio logs traceback with \"NotImplementedError\"","articleBody":"Running test_asyncio logs traceback with \"NotImplementedError\":\r\n\r\n```\r\n$ ./python -m test test_asyncio --verbose\r\n(...)\r\ntest_interrupt_call_soon (test.test_asyncio.test_runners.RunnerTests.test_interrupt_call_soon) ... Exception in callback interrupt_self() at /home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py:18\r\nhandle: \u003cTimerHandle when=93104.58238161601 interrupt_self() at /home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py:18\u003e\r\nTraceback (most recent call last):\r\n  File \"/home/vstinner/python/main/Lib/asyncio/events.py\", line 80, in _run\r\n    self._context.run(self._callback, *self._args)\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py\", line 19, in interrupt_self\r\n    _thread.interrupt_main()\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/runners.py\", line 145, in _on_sigint\r\n    self._loop.call_soon_threadsafe(lambda: None)\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 809, in call_soon_threadsafe\r\n    self._write_to_self()\r\n    ^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 511, in _write_to_self\r\n    raise NotImplementedError\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^\r\nNotImplementedError\r\nok\r\n\r\ntest_interrupt_cancelled_task (test.test_asyncio.test_runners.RunnerTests.test_interrupt_cancelled_task) ... Task exception was never retrieved\r\nfuture: \u003cTask finished name='Task-1657' coro=\u003cRunnerTests.test_interrupt_cancelled_task.\u003clocals\u003e.subtask() done, defined at /home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py:366\u003e exception=NotImplementedError()\u003e\r\nTraceback (most recent call last):\r\n  File \"/home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py\", line 369, in subtask\r\n    interrupt_self()\r\n    ^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py\", line 19, in interrupt_self\r\n    _thread.interrupt_main()\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/runners.py\", line 145, in _on_sigint\r\n    self._loop.call_soon_threadsafe(lambda: None)\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 809, in call_soon_threadsafe\r\n    self._write_to_self()\r\n    ^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 511, in _write_to_self\r\n    raise NotImplementedError\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^\r\nNotImplementedError\r\nok\r\n\r\ntest_interrupt_wait (test.test_asyncio.test_runners.RunnerTests.test_interrupt_wait) ... Exception in callback interrupt_self() at /home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py:18\r\nhandle: \u003cTimerHandle when=93104.694901935 interrupt_self() at /home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py:18\u003e\r\nTraceback (most recent call last):\r\n  File \"/home/vstinner/python/main/Lib/asyncio/events.py\", line 80, in _run\r\n    self._context.run(self._callback, *self._args)\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/test/test_asyncio/test_runners.py\", line 19, in interrupt_self\r\n    _thread.interrupt_main()\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/runners.py\", line 145, in _on_sigint\r\n    self._loop.call_soon_threadsafe(lambda: None)\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 809, in call_soon_threadsafe\r\n    self._write_to_self()\r\n    ^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/home/vstinner/python/main/Lib/asyncio/base_events.py\", line 511, in _write_to_self\r\n    raise NotImplementedError\r\n    ^^^^^^^^^^^^^^^^^^^^^^^^^\r\nNotImplementedError\r\nok\r\n(...)\r\n```","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2022-06-15T11:09:12.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/93850/cpython/issues/93850"}