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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_cmd_line: test_python_legacy_windows_stdio() fails with STATUS_DLL_INIT_FAILED (hex: c0000142, dec: 3221225794)","articleBody":"# Bug report\n\nWindows (free-threading) / Build and test (x64, switch-case): https://github.com/python/cpython/actions/runs/26421370296/job/77776609299?pr=150432\n\n```\nFAIL: test_python_legacy_windows_stdio (test.test_cmd_line.CmdLineTest.test_python_legacy_windows_stdio)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"D:\\a\\cpython\\cpython\\Lib\\test\\test_cmd_line.py\", line 1047, in test_python_legacy_windows_stdio\n    self.assertEqual(p.returncode, 0)\n    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^\nAssertionError: 3221225794 != 0\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-150704\n* gh-150713\n* gh-150715\n* gh-150721\n* gh-150972\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2026-05-25T22:37:17.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/150436/cpython/issues/150436"}