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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"``test_ioctl`` fails on macOS","articleBody":"# Bug report\n\n### Bug description:\n\n```python\n./python.exe -m test -v test_ioctl\n== CPython 3.14.0a0 (heads/main:a5fef800d3, May 30 2024, 09:48:26) [Clang 15.0.0 (clang-1500.3.9.4)]\n== macOS-14.5-arm64-arm-64bit-Mach-O little-endian\n== Python build: debug\n== cwd: /Users/admin/Projects/cpython/build/test_python_worker_4187æ\n== CPU count: 8\n== encodings: locale=UTF-8 FS=utf-8\n== resources: all test resources are disabled, use -u option to unskip tests\n\nUsing random seed: 2309191984\n0:00:00 load avg: 63.19 Run 1 test sequentially\n0:00:00 load avg: 63.19 [1/1] test_ioctl\ntest_ioctl (test.test_ioctl.IoctlTests.test_ioctl) ... ok\ntest_ioctl_mutate (test.test_ioctl.IoctlTests.test_ioctl_mutate) ... ok\ntest_ioctl_mutate_1024 (test.test_ioctl.IoctlTests.test_ioctl_mutate_1024) ... ok\ntest_ioctl_mutate_2048 (test.test_ioctl.IoctlTests.test_ioctl_mutate_2048) ... ok\ntest_ioctl_signed_unsigned_code_param (test.test_ioctl.IoctlTests.test_ioctl_signed_unsigned_code_param) ... ERROR\n\n======================================================================\nERROR: test_ioctl_signed_unsigned_code_param (test.test_ioctl.IoctlTests.test_ioctl_signed_unsigned_code_param)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/Users/admin/Projects/cpython/Lib/test/test_ioctl.py\", line 85, in test_ioctl_signed_unsigned_code_param\n    new_winsz = fcntl.ioctl(mfd, set_winsz_opcode_maybe_neg, our_winsz)\nOSError: [Errno 25] Inappropriate ioctl for device\n\n----------------------------------------------------------------------\nRan 5 tests in 0.003s\n\nFAILED (errors=1)\ntest test_ioctl failed\ntest_ioctl failed (1 error)\n\n== Tests result: FAILURE ==\n\n1 test failed:\n    test_ioctl\n\nTotal duration: 96 ms\nTotal tests: run=5\nTotal test files: run=1/1 failed=1\nResult: FAILURE\n```\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nmacOS\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-119818\n* gh-119840\n* gh-119862\n* gh-119863\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/Eclips4","@type":"Person","name":"Eclips4"},"datePublished":"2024-05-30T06:50:48.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/119770/cpython/issues/119770"}