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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Coroutine with asyncio.sleep() hangs when run in a different thread","articleBody":"Here is my code:\n\n``` python\nimport asyncio\nfrom threading import Thread\n\n\nasync def onRequest(data):\n    print('got request: {}'.format(data))\n    await asyncio.sleep(1)\n    print('finished processing request {}'.format(data))\n\nloop = asyncio.get_event_loop()\nloop.set_debug(True)\n\ndef child_executor():\n    loop.run_forever()\n\nchild = Thread(target=child_executor, name=\"child\")\n\ndef request(data):\n    asyncio.run_coroutine_threadsafe(onRequest(data), loop)\n\nchild.start()\n\nrequest(4)\n```\n\nThis produces the following output:\n\n```\ngot request: 4\n```\n\nand then it just hangs, without the 'finished processing request' message. If I press ctrl^C, it outputs the following message, which doesn't look very interesting:\n\n```\nException ignored in: \u003cmodule 'threading' from '/home/ubuntu/lib/python3.5/threading.py'\u003e\nTraceback (most recent call last):\n  File \"/home/ubuntu/lib/python3.5/threading.py\", line 1288, in _shutdown\n    t.join()\n  File \"/home/ubuntu/lib/python3.5/threading.py\", line 1054, in join\n    self._wait_for_tstate_lock()\n  File \"/home/ubuntu/lib/python3.5/threading.py\", line 1070, in _wait_for_tstate_lock\n    elif lock.acquire(block, timeout):\nKeyboardInterrupt\n```\n","author":{"url":"https://github.com/mikeyhew","@type":"Person","name":"mikeyhew"},"datePublished":"2016-01-15T14:42:30.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":14},"url":"https://github.com/312/asyncio/issues/312"}