René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_implied_dirs_performance is flaky","articleBody":"Reported [in discord](https://discord.com/channels/854719841091715092/868504620970962944/1078325012651593768), since #102018, the timing check was added to `test_implied_dirs_performance` and this check is frequently failing ([example](https://github.com/python/cpython/actions/runs/4248047744/jobs/7386765925)):\r\n\r\n```\r\nERROR: test_implied_dirs_performance (test.test_zipfile.test_path.TestPath.test_implied_dirs_performance)\r\n----------------------------------------------------------------------\r\nTraceback (most recent call last):\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\contextlib.py\", line 80, in inner\r\n    with self._recreate_cm():\r\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\test_zipfile\\_context.py\", line 30, in __exit__\r\n    raise DeadlineExceeded(duration, self.max_duration)\r\ntest.test_zipfile._context.DeadlineExceeded: (3.140999999999849, 3)\r\n```\r\n\r\nThese failures aren't occurring on [zipp](/jaraco/zipp), where the check has been running for years without fail.\r\n\r\nFurthermore, the check is currently not capturing the failure case because the invocation fails to consume the generator:\r\n\r\nhttps://github.com/python/cpython/blob/9f3ecd1aa3566947648a053bd9716ed67dd9a718/Lib/test/test_zipfile/test_path.py#L336\r\n\r\nThat indicates that the flaky failures are due to the construction of test data:\r\n\r\nhttps://github.com/python/cpython/blob/9f3ecd1aa3566947648a053bd9716ed67dd9a718/Lib/test/test_zipfile/test_path.py#L335\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-102225\n* gh-102232\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/jaraco","@type":"Person","name":"jaraco"},"datePublished":"2023-02-24T09:58:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/102209/cpython/issues/102209"}