René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_external_inspection.test_only_active_thread is flaky","articleBody":"# Bug report\n\n### Bug description:\n\n```\ntest test_external_inspection failed -- Traceback (most recent call last):\n  File \"/home/runner/work/cpython/cpython/Lib/test/test_external_inspection.py\", line 991, in test_only_active_thread\n    self.assertEqual(len(gil_traces), 1, \"Should have exactly one GIL holder\")\n    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError: 0 != 1 : Should have exactly one GIL holder\n```\n\nSee the failures in https://github.com/python/cpython/actions/runs/16006058028/job/45152923015 on main\n\ncc @pablogsal \n\nSee also:\n* https://github.com/python/cpython/pull/136005\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-136347\n* gh-136416\n* gh-143110\n* gh-143235\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/colesbury","@type":"Person","name":"colesbury"},"datePublished":"2025-07-01T18:35:05.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/136186/cpython/issues/136186"}