Description

kraj

opened on Sep 9, 2025

Issue body actions

Bug report

Bug description:

This test depends on platform C library defining NODEV which is there on glibc but not on musl C library implementation on Linux. This is introduced with

#31794

Alpine has disabled portions of above patch to get it going on musl by applying this patch

diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
index 7ed45ac..a35c6db 100644
--- a/Lib/test/test_posix.py
+++ b/Lib/test/test_posix.py
@@ -724,7 +724,7 @@ def test_makedev(self):
             self.assertRaises((ValueError, OverflowError), posix.makedev, x, minor)
             self.assertRaises((ValueError, OverflowError), posix.makedev, major, x)

-        if sys.platform == 'linux':
+        if False:
             NODEV = -1
             self.assertEqual(posix.major(NODEV), NODEV)
             self.assertEqual(posix.minor(NODEV), NODEV)

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Activity

1. kraj

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Sep 9, 2025
2. StanFromIreland

   added

   testsTests in the Lib/test dirTests in the Lib/test dir

   OS-unsupported

   on Sep 9, 2025
3. github-project-automation

   added this to Unsupported platformson Sep 9, 2025
4. zware commented on Sep 9, 2025

   

   zware

   on Sep 9, 2025

   Member

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   See gh-90548, and particularly GH-138593. This is "fixed" in 3.14 and 3.15, though I believe @serhiy-storchaka had plans to add an os.NODEV constant which could be used to properly test this rather than relying on a check for musl. We could go ahead and backport the test change to 3.13, but I'm unsure of its worth.
5. kraj commented on Sep 9, 2025

   

   kraj

   on Sep 9, 2025

   Author

   More actions

   See gh-90548, and particularly GH-138593. This is "fixed" in 3.14 and 3.15, though I believe @serhiy-storchaka had plans to add an os.NODEV constant which could be used to properly test this rather than relying on a check for musl. We could go ahead and backport the test change to 3.13, but I'm unsure of its worth.

   ah thanks, I will test it with 3.13 in yocto and report back.
6. zware commented on Sep 9, 2025

   

   zware

   on Sep 9, 2025

   Member

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   The change from GH-138593 is now merged on 3.13; GH-138713. I'll go ahead and close this as a duplicate of gh-90548.
7. zware

   closed this as a duplicateof Multiple test failures on Alpine 3.15 / musl-1.2.2-r7 #90548 on Sep 9, 2025
8. github-project-automation

   moved this to Done in Unsupported platformson Sep 9, 2025
9. serhiy-storchaka commented on Sep 10, 2025

   

   serhiy-storchaka

   on Sep 10, 2025

   Member

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   though I believe @serhiy-storchaka had plans to add an os.NODEV constant which could be used to properly test this rather than relying on a check for musl.

   See #138712. It does not help in testing, because what we test (functions returning NODEV) is platform-specific and cannot be reproduced on all platforms that define NODEV.

   Reacted by Zachary Ware

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