René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_threading: test_default_timeout() fails randomly ands logs \"Warning -- Unraisable exception\"","articleBody":"Example from issue #108987:\r\n\r\n```\r\ntest_default_timeout (test.test_threading.BarrierTests.test_default_timeout)\r\nTest the barrier's default timeout ... Warning -- Unraisable exception\r\nException ignored in thread started by: \u003cfunction Bunch.__init__.\u003clocals\u003e.task at 0x053F5270\u003e\r\nTraceback (most recent call last):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 48, in task\r\n    f()\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 1020, in f\r\n    i = barrier.wait()\r\n        ^^^^^^^^^^^^^^\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 709, in wait\r\n    self._wait(timeout)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 749, in _wait\r\n    raise BrokenBarrierError\r\nthreading.BrokenBarrierError: \r\nERROR\r\ntest_repr (test.test_threading.BarrierTests.test_repr) ... Warning -- Unraisable exception\r\nException ignored in thread started by: \u003cfunction Bunch.__init__.\u003clocals\u003e.task at 0x053F5270\u003e\r\nTraceback (most recent call last):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 48, in task\r\n    f()\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 1020, in f\r\n    i = barrier.wait()\r\n        ^^^^^^^^^^^^^^\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 709, in wait\r\n    self._wait(timeout)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 749, in _wait\r\n    raise BrokenBarrierError\r\nthreading.BrokenBarrierError: \r\nWarning -- Unraisable exception\r\nException ignored in thread started by: \u003cfunction Bunch.__init__.\u003clocals\u003e.task at 0x053F5270\u003e\r\nTraceback (most recent call last):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 48, in task\r\n    f()\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 1020, in f\r\n    i = barrier.wait()\r\n        ^^^^^^^^^^^^^^\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 709, in wait\r\n    self._wait(timeout)\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 749, in _wait\r\n    raise BrokenBarrierError\r\nthreading.BrokenBarrierError: \r\nWarning -- Unraisable exception\r\nException ignored in thread started by: \u003cfunction Bunch.__init__.\u003clocals\u003e.task at 0x053F5270\u003e\r\nTraceback (most recent call last):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 48, in task\r\n    f()\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\lock_tests.py\", line 1020, in f\r\n    i = barrier.wait()\r\n        ^^^^^^^^^^^^^^\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 700, in wait\r\n    self._enter() # Block while the barrier drains.\r\n    ^^^^^^^^^^^^^\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\threading.py\", line 724, in _enter\r\n    raise BrokenBarrierError\r\nthreading.BrokenBarrierError: \r\nok\r\n```\r\n\r\nbuild: https://github.com/python/cpython/actions/runs/6094370280/job/16535778004#step:5:103\r\n\r\nIn issue #108987, I fixed a crashed which occurred in this test when the test failed.\r\n\r\nI create this issue to focus on the **test failure** and ``Warning -- Unraisable exception``.\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-109875\n* gh-109876\n* gh-109877\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2023-09-14T11:43:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/109401/cpython/issues/109401"}