Description

Oleg-Deomidoff

opened on Dec 3, 2024

Issue body actions

Bug report

Bug description:

# Add a code block here, if required
import os
os.PIDFD_NONBLOCK

https://docs.python.org/3/library/os.html#os.PIDFD_NONBLOCK

python3.13 Wed 04 Dec 2024 01:57:39 AM +03
Python 3.13.0 (main, Oct 8 2024, 00:00:00) [GCC 14.2.1 20240912 (Red Hat 14.2.1-3)] on linux
Type "help", "copyright", "credits" or "license" for more information.

import os
os.PIDFD_NONBLOCK
Traceback (most recent call last):
File "", line 1, in
os.PIDFD_NONBLOCK
AttributeError: module 'os' has no attribute 'PIDFD_NONBLOCK'. Did you mean: 'EFD_NONBLOCK'?

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Activity

1. Oleg-Deomidoff

   added

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

   on Dec 3, 2024
2. JelleZijlstra commented on Dec 3, 2024

   

   JelleZijlstra

   on Dec 3, 2024

   Member

   More actions

   The docs say the constant is available on Linux >= 5.10.

   However, I can replicate this on a Linux system running kernel 5.15 using current main:

   $ uname -a
   Linux devshared41 5.15.0-1070-aws #76~20.04.1-Ubuntu SMP Mon Sep 2 12:20:36 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
   $ ./python -c 'import os; print(hasattr(os, "PIDFD_NONBLOCK"))'
   False
   

   The code looks correct:

   cpython/Modules/posixmodule.c

   Line 17410 in 12397a5

   #ifdef PIDFD_NONBLOCK

   And manpages confirm the constant should exist: https://man7.org/linux/man-pages/man2/pidfd_open.2.html

   Maybe we're missing an #include?

   cc @kumaraditya303 who added this in #93313
3. stephen-hansen commented on Dec 4, 2024

   

   stephen-hansen

   on Dec 4, 2024

   Contributor

   More actions

   just browsing through here, looks like relevant kernel thread: https://lore.kernel.org/all/ZkrZb91EgZoaOybZ@t420/T/

   Seems like the missing #include is on <linux/pidfd.h>.

   Reacted by Jelle Zijlstra and Tomas R.
4. picnixz

   added

   extension-modulesC modules in the Modules dirC modules in the Modules dir

   easy

   on Dec 5, 2024
5. kumaraditya303 commented on Dec 6, 2024

   

   kumaraditya303

   on Dec 6, 2024

   Contributor

   More actions

   Fixed by #127593
6. kumaraditya303

   closed this as completedon Dec 6, 2024

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