René's URL Explorer Experiment


Title: [3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) by johng · Pull Request #159048 · python/cpython · GitHub

Open Graph Title: [3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) by johng · Pull Request #159048 · python/cpython

X Title: [3.15] gh-157468: Validate correct builtins used under JIT (GH-157766) by johng · Pull Request #159048 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Expose two possible builtin JIT gaps Add trace and runtime guard for builtin dict Check _GUARD_BUILTINS_IS_CANONICAL once per frame Add check and fix for globals being folded (cherry picked f...

X Description: Expose two possible builtin JIT gaps Add trace and runtime guard for builtin dict Check _GUARD_BUILTINS_IS_CANONICAL once per frame Add check and fix for globals being folded (cherry picked f...

Mail addresses
me@joh.ng

Opengraph URL: https://github.com/python/cpython/pull/159048

X: @github

direct link

Domain: github.com

react-profiling0
react-import-mapreact,react-dom,react-dom/client,react-dom/profiling,react-is,react-reconciler,react/compiler-runtime,react/jsx-dev-runtime,react/jsx-runtime,scheduler@d5750093facf
route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:a2a4584d-66d2-a59b-6ad4-880c0cbbd604
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-id989E:148328:4F2E3A:6B1107:6AECCFF7
html-safe-noncec009213fac36c962b763b8a0962efe364a66fddb1f63cc8cbd41a8e1ae8dfa09
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI5ODlFOjE0ODMyODo0RjJFM0E6NkIxMTA3OjZBRUNDRkY3IiwidmlzaXRvcl9pZCI6IjU2NzAxNjAxMzYzOTI0MTcxOSIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmacd6c4bd71ae451b9264ac824c4f39053dda4c1e1dc7ae67d2396ed9cfe93cac6e
hovercard-subject-tagpull_request:4797127344
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/python/cpython/159048/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/ea5415ca95b537821d19caadfbe21abb518458f3fd94e46d2376e9fc2ca726fa/python/cpython/pull/159048
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/ea5415ca95b537821d19caadfbe21abb518458f3fd94e46d2376e9fc2ca726fa/python/cpython/pull/159048
og:image:altExpose two possible builtin JIT gaps Add trace and runtime guard for builtin dict Check _GUARD_BUILTINS_IS_CANONICAL once per frame Add check and fix for globals being folded (cherry picked f...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamejohng
hostnamegithub.com
expected-hostnamegithub.com
None0d8e13d765457347e0bc9664aa9103874b0a754f8a1ffe4e190178ab258dd8cc
turbo-cache-controlno-cache
go-importgithub.com/python/cpython git https://github.com/python/cpython.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id81598961
octolytics-dimension-repository_nwopython/cpython
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id81598961
octolytics-dimension-repository_network_root_nwopython/cpython
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
releasee2ab5c9355284de552dd38ea36155a4fa132df68
ui-targetfull
theme-color#1e2327
color-schemelight dark
react-app-namepull-requests

Links:

Skip to contenthttps://github.com/python/cpython/pull/159048#start-of-content
https://github.com/
Sign inhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F159048
GitHubRepository hosting, code review, and collaborationhttps://github.com/platform
CopilotAI coding agent for tasks, projects, and automated workhttps://github.com/features/copilot
ActionsCI/CD and automationhttps://github.com/features/actions
Code QualityQuality analysis, fixes, and enforcementhttps://github.com/features/code-quality
CodespacesCloud development environmentshttps://github.com/features/codespaces
Code SecurityVulnerability detection and remediationhttps://github.com/security/advanced-security/code-security
Secret ProtectionSecret scanning and leak preventionhttps://github.com/security/advanced-security/secret-protection
All Featureshttps://github.com/features
Documentationhttps://docs.github.com/en
Traininghttps://learn.github.com/skills
Certificationshttps://learn.github.com/credentials
Build with Copilothttps://github.com/features/ai
Customize Copilothttps://docs.github.com/en/copilot/how-tos/copilot-on-github/customize-copilot/customize-copilot-overview
Integrationshttps://github.com/marketplace
Trending reposhttps://github.com/trending
GitHub Sponsorshttps://github.com/open-source/sponsors
Developer articleshttps://github.com/resources/articles
ChangelogYour source for the latest features, improvements, and fixes across GitHub products, all in one place.https://github.blog/changelog/
Enterpriseshttps://github.com/enterprise
Teamhttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
See all industrieshttps://github.com/solutions/industry
Why GitHubhttps://github.com/why-github
Customer Storieshttps://github.com/customer-stories
Business insightshttps://github.com/solutions/executive-insights
Trust Centerhttps://github.com/trust-center
GitHub Advanced SecurityEnterprise-grade code securityhttps://github.com/security/advanced-security
Copilot for businessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Documentationhttps://docs.github.com/en
Resource centerhttps://github.com/resources
Bloghttps://github.blog/
Events & webinarshttps://github.com/resources/events
Community Forumhttps://github.com/orgs/community/discussions
Customer Storieshttps://github.com/customer-stories
Integrationshttps://github.com/marketplace
Customer supporthttps://help.github.com/
Traininghttps://learn.github.com/skills
GitHub Statushttps://www.githubstatus.com/
Abouthttps://github.com/about
Partnershttps://github.com/partners
Changeloghttps://github.blog/changelog/
GitHub UniverseThe event for developers, by developers — talks, workshops, and what’s next for GitHub.https://githubuniverse.com/
Pricinghttps://github.com/pricing
Sign inhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F159048
Sign uphttps://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/pull/159048
Reloadhttps://github.com/python/cpython/pull/159048
Reloadhttps://github.com/python/cpython/pull/159048
pythonhttps://github.com/python
cpythonhttps://github.com/python/cpython
Codehttps://github.com/python/cpython
Issues5k+ (5k+)https://github.com/python/cpython/issues
Pull requests2.3k (2.3k)https://github.com/python/cpython/pulls
Actionshttps://github.com/python/cpython/actions
Projectshttps://github.com/python/cpython/projects
Security and qualityhttps://github.com/python/cpython/security
Insightshttps://github.com/python/cpython/pulse
https://github.com/python/cpython
encukouhttps://github.com/encukou
python:3.15https://github.com/python/cpython/tree/3.15
johng:backport-0906d2a-3.15https://github.com/johng/cpython/tree/backport-0906d2a-3.15
Conversationhttps://github.com/python/cpython/pull/159048
Commits1 (1)https://github.com/python/cpython/pull/159048/commits
Checkshttps://github.com/python/cpython/pull/159048/checks
Files changedhttps://github.com/python/cpython/pull/159048/files
[3.15] gh-157468: Validate correct builtins used under JIT (GH-157766)https://github.com/python/cpython/pull/159048#top
encukouhttps://github.com/encukou
python:3.15https://github.com/python/cpython/tree/3.15
johng:backport-0906d2a-3.15https://github.com/johng/cpython/tree/backport-0906d2a-3.15
https://github.com/johng
johnghttps://github.com/johng
Oct 9, 2026https://github.com/python/cpython/pull/159048#issue-5774155706
Please reload this pagehttps://github.com/python/cpython/pull/159048
0906d2ahttps://github.com/python/cpython/commit/0906d2ab93fc9f4c7e0db031c965e7d8a0db7d37
Tier 2 optimizer may use canonical builtins for functions with a copied __builtins__ dictionary #157468https://github.com/python/cpython/issues/157468
Please reload this pagehttps://github.com/python/cpython/pull/159048
https://github.com/johng
[3.15]https://github.com/python/cpython/pull/159048/commits/f50e78d9b6511aa3792beb8e04890a667a1e4253
pythongh-157468https://github.com/python/cpython/issues/157468
: Validate correct builtins used under JIT (https://github.com/python/cpython/pull/159048/commits/f50e78d9b6511aa3792beb8e04890a667a1e4253
pyt…https://github.com/python/cpython/pull/157766
f50e78dhttps://github.com/python/cpython/pull/159048/commits/f50e78d9b6511aa3792beb8e04890a667a1e4253
…honGH-157766https://github.com/python/cpython/pull/157766
0906d2ahttps://github.com/johng/cpython/commit/0906d2ab93fc9f4c7e0db031c965e7d8a0db7d37
https://github.com/johng
johnghttps://github.com/johng
Fidget-Spinnerhttps://github.com/Fidget-Spinner
markshannonhttps://github.com/markshannon
methanehttps://github.com/methane
savannahostrowskihttps://github.com/savannahostrowski
tomasr8https://github.com/tomasr8
code ownershttps://github.com/python/cpython/blob/19fd4df98a1878c78961888625e0962fe2232806/.github/CODEOWNERS#L304
October 9, 2026 06:53https://github.com/python/cpython/pull/159048#event-32853134656
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Oct 9, 2026 https://github.com/python/cpython/pull/159048#ref-issue-5445895900
Tier 2 optimizer may use canonical builtins for functions with a copied __builtins__ dictionary #157468 https://github.com/python/cpython/issues/157468
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Oct 9, 2026https://github.com/python/cpython/pull/159048#event-32853140280
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Oct 9, 2026 https://github.com/python/cpython/pull/159048#ref-pullrequest-5503838123
gh-157468: Validate correct builtins used under JIT #157766 https://github.com/python/cpython/pull/157766
https://github.com/johng
johnghttps://github.com/johng
Oct 12, 2026https://github.com/python/cpython/pull/159048#issuecomment-6119641910
@markshannonhttps://github.com/markshannon
Please reload this pagehttps://github.com/python/cpython/pull/159048
https://github.com/encukou
encukouhttps://github.com/encukou
4df287dhttps://github.com/python/cpython/commit/4df287d276a890bca3c0b9b2807584c7cbc78bb0
Oct 12, 2026https://github.com/python/cpython/pull/159048#event-33055661331
Please reload this pagehttps://github.com/python/cpython/pull/159048
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Oct 12, 2026https://github.com/python/cpython/pull/159048#event-33055665633
https://github.co/hiddenchars
https://github.com/python/cpython/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F159048
https://github.com/markshannon
markshannon https://github.com/markshannon
https://github.com/tomasr8
tomasr8 https://github.com/tomasr8
https://github.com/Fidget-Spinner
Fidget-Spinner https://github.com/Fidget-Spinner
https://github.com/savannahostrowski
savannahostrowski https://github.com/savannahostrowski
https://github.com/methane
methane https://github.com/methane
Please reload this pagehttps://github.com/python/cpython/pull/159048
Please reload this pagehttps://github.com/python/cpython/pull/159048
https://github.com/johng
https://github.com/encukou
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.