GV

GeezerVison

The World Wide Web, restored to 800 pixels of glory.

Home|About|Gaming cabinet|Archives|How it works|Starter sites

On this site

  • Sign in
  • ActionsCI/CD and automation
  • CodespacesCloud development environments
  • All Features
  • Documentation
  • Training
  • Certifications
  • Build with Copilot
  • Customize Copilot
  • Integrations
  • Trending repos
  • GitHub Sponsors
  • Developer articles
  • Enterprises

This view

  • Original page
  • New address

GeezerVison is showing github.com — [3.13] gh-129204: Add _PYTHON_SUBPROCESS_USE_POSIX_SPAWN environment knob (GH-132184) by miss-islington · Pull Request #132191 · python/cpython

Conversation

@miss-islington

@miss-islington miss-islington commented Apr 7, 2025 •
edited by bedevere-app Bot
Loading

Uh oh!

There was an error while loading. Please reload this page.

Copy link
Copy Markdown
Contributor
  • Add _PYTHON_SUBPROCESS_USE_POSIX_SPAWN environment knob

Add support for disabling the use of posix_spawn via a variable in
the process environment.

While it was previously possible to toggle this by modifying the value
of subprocess._USE_POSIX_SPAWN, this required either patching CPython
or modifying it within the interpreter instance which is not always
possible, such as when running applications or scripts not under a
user's control.

Signed-off-by: Vincent Fazio [email protected]

  • fixup NEWS entry

(cherry picked from commit 4c5dcc6)

Co-authored-by: Vincent Fazio [email protected]
Signed-off-by: Vincent Fazio [email protected]

  • Issue: Doc: mention a minimal version of QEMU user emulation necessary for 3.13+? #129204

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions
@vfazio @miss-islington
pythongh-129204: Add _PYTHON_SUBPROCESS_USE_POSIX_SPAWN environment k…
458033a 
…nob (pythonGH-132184)

* Add _PYTHON_SUBPROCESS_USE_POSIX_SPAWN environment knob

Add support for disabling the use of `posix_spawn` via a variable in
the process environment.

While it was previously possible to toggle this by modifying the value
of `subprocess._USE_POSIX_SPAWN`, this required either patching CPython
or modifying it within the interpreter instance which is not always
possible, such as when running applications or scripts not under a
user's control.

Signed-off-by: Vincent Fazio <[email protected]>

* fixup NEWS entry

---------
(cherry picked from commit 4c5dcc6)

Co-authored-by: Vincent Fazio <[email protected]>
Signed-off-by: Vincent Fazio <[email protected]>
@miss-islington
miss-islington requested a review from gpshead as a code owner April 7, 2025 03:53
@bedevere-app bedevere-app Bot added the awaiting review label Apr 7, 2025
This was referenced Apr 7, 2025
Doc: mention a minimal version of QEMU user emulation necessary for 3.13+? #129204
Closed
gh-129204: Add _PYTHON_SUBPROCESS_USE_POSIX_SPAWN environment knob #132184
Merged
@gpshead gpshead added the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Apr 7, 2025
@bedevere-bot

bedevere-bot commented Apr 7, 2025

Copy link
Copy Markdown

🤖 New build scheduled with the buildbot fleet by @gpshead for commit 458033a 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F132191%2Fmerge

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.
All reactions

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
@bedevere-bot bedevere-bot removed the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Apr 7, 2025
@gpshead gpshead self-assigned this Apr 7, 2025
@gpshead
gpshead merged commit 68bbdd9 into python:3.13 Apr 7, 2025
@bedevere-app bedevere-app Bot removed the awaiting review label Apr 7, 2025
@miss-islington
miss-islington deleted the backport-4c5dcc6-3.13 branch January 2, 2026 16:47
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@gpshead gpshead Awaiting requested review from gpshead gpshead is a code owner

Uh oh!

There was an error while loading. Please reload this page.

Assignees

@gpshead gpshead

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

Uh oh!

There was an error while loading. Please reload this page.

4 participants

@miss-islington @bedevere-bot @gpshead @vfazio
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
You are visitor 01402503 — GeezerVison does not store the pages you look up.
Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required.