8000 gh-82616: Add process_group support to subprocess.Popen by gpshead · Pull Request #23930 · python/cpython · GitHub
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Merged
merged 18 commits into from
May 5, 2022
Merged

gh-82616: Add process_group support to subprocess.Popen #23930

merged 18 commits into from
May 5, 2022

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@gpshead gpshead commented Dec 25, 2020 •
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Adds a process_group= parameter to subprocess APIs to help us deprecate
uses of preexec_fn.

https://bugs.python.org/issue38435

@gpshead
Add setpgid support to subprocess.POpen
1454088 
Adds a setpgid parameter to subprocess APIs to help us deprecate
uses of preexec_fn.
@gpshead gpshead added the type-feature A feature request or enhancement label Dec 25, 2020
@gpshead gpshead changed the title Add setpgid support to subprocess.POpen bpo-38435: Add setpgid support to subprocess.POpen Dec 25, 2020
@gpshead gpshead self-assigned this Dec 25, 2020
@gpshead gpshead marked this pull request as draft December 25, 2020 04:42
@gpshead gpshead marked this pull request as ready for review December 25, 2020 04:51
@gpshead gpshead requested 8000 a review from vstinner December 25, 2020 05:23
ZackerySpytz
ZackerySpytz reviewed Dec 25, 2020
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It is subprocess.Popen, not subprocess.POpen. Please fix the title and the news entry.

@serhiy-storchaka serhiy-storchaka changed the title bpo-38435: Add setpgid support to subprocess.POpen bpo-38435: Add setpgid support to subprocess.Popen Dec 29, 2020
serhiy-storchaka
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This PR is stale because it has been open for 30 days with no activity.

@github-actions github-actions bot added the stale Stale PR or inactive for long period of time. label Jan 29, 2021
gpshead and others added 7 commits May 5, 2022 10:59
@gpshead
Merge branch 'main' into subprocess-issue38435
645256e
@gpshead @ZackerySpytz
Add missing \ in Doc/library/subprocess.rst
b58758b 
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
@gpshead @serhiy-storchaka
better ReST in Doc/library/subprocess.rst
acba394 
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
@gpshead @serhiy-storchaka
improve formatting in Doc/library/subprocess.rst
cef3bbe 
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
@gpshead @serhiy-storchaka
improve formatting in Doc/library/subprocess.rst
e594a01 
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
@gpshead
better formatting
ab9f0a5
@gpshead
versionadded 3.11
3b3a5d0
@gpshead gpshead added stdlib Python modules in the Lib dir extension-modules C modules in the Modules dir and removed stale Stale PR or inactive for long period of time. labels May 5, 2022
@gpshead gpshead changed the title bpo-38435: Add setpgid support to subprocess.Popen gh-82616: Add setpgid support to subprocess.Popen May 5, 2022
@gpshead gpshead changed the title gh-82616: Add setpgid support to subprocess.Popen gh-82616: Add process_group support to subprocess.Popen May 5, 2022
serhiy-storchaka
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gpshead commented May 5, 2022 •
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The Address sanitizer failure blocking this makes no logical sense. I cannot reproduce it on my systems because an address sanitizer build doesn't even work at all.

Update: Zach Ware pointed out that I also needed to export ASAN_OPTIONS=detect_leaks=0:allocator_may_return_null=1:handle_segv=0 for that run. With that I can get a functioning ASAN build at least, but am still unable to reproduce the issue.
Update 2: You need an ubuntu 20.04 gcc 9.4 based system to reproduce it. anything more modern does not. regardless, the asan failure didn't make sense. I'm having those tests skipped under asan.

@gpshead gpshead requested review from 1st1 and asvetlov as code owners May 5, 2022 22:15
@gpshead gpshead merged commit f6dd14c into python:main May 5, 2022
@gpshead gpshead deleted the subprocess-issue38435 branch May 5, 2022 23:22
@gpshead gpshead mentioned this pull request May 5, 2022
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vstinner commented May 5, 2022

(post-merge review ;-)) LGTM.

It might help to add a build check (C11 static_assert()) that the pid_t type is unsigned. A macro like that can be used:

#define IS_TYPE_UNSIGNED(type) (((type)0 - 1) > 0)

@JelleZijl BC2B stra JelleZijlstra mentioned this pull request May 7, 2022
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JelleZijlstra added a commit to JelleZijlstra/typeshed that referenced this pull request May 7, 2022
@JelleZijlstra
Add new arguments to subprocess.Poopen
07c8716 
Most recent one in python/cpython#23930. This makes me wish we
could have had type evaluation functions.
@mattip mattip mentioned this pull request Oct 7, 2024
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