René's URL Explorer Experiment


Title: gh-151722: Defer GC tracking of frozendict.fromkeys() result until fully built by tonghuaroot · Pull Request #151967 · python/cpython · GitHub

Open Graph Title: gh-151722: Defer GC tracking of frozendict.fromkeys() result until fully built by tonghuaroot · Pull Request #151967 · python/cpython

X Title: gh-151722: Defer GC tracking of frozendict.fromkeys() result until fully built by tonghuaroot · Pull Request #151967 · python/cpython

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

Open Graph Description: frozendict.fromkeys() fills its result by iterating the keys and inserting them one at a time with PyIter_Next(), which runs user code (the iterable's __next__). In the free-threaded build the...

X Description: frozendict.fromkeys() fills its result by iterating the keys and inserting them one at a time with PyIter_Next(), which runs user code (the iterable's __next__). In the free-threaded build...

Opengraph URL: https://github.com/python/cpython/pull/151967

X: @github

direct link

Domain: github.com

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:f47c2ed8-72ec-e6d8-2a5e-393cb9b584aa
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-id9434:1B445F:516320B:737B32E:6A4FF815
html-safe-nonce6e9f6dda093fbd03988373d0ae67cb54153ca2666d335e9be2ea15e721202f57
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI5NDM0OjFCNDQ1Rjo1MTYzMjBCOjczN0IzMkU6NkE0RkY4MTUiLCJ2aXNpdG9yX2lkIjoiMTUxNzY1ODg1NjU0MDMzODE5NyIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac8ab6fb2f4d3e0ee4f53619dd649ad28313caf1745dbee92c4789abada14b82b7
hovercard-subject-tagpull_request:3917817592
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/151967/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/5508a4485850bac16c5ff6e1ba6919df4c69775279ccd24874f088fe90de6b61/python/cpython/pull/151967
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/5508a4485850bac16c5ff6e1ba6919df4c69775279ccd24874f088fe90de6b61/python/cpython/pull/151967
og:image:altfrozendict.fromkeys() fills its result by iterating the keys and inserting them one at a time with PyIter_Next(), which runs user code (the iterable's __next__). In the free-threaded build the...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernametonghuaroot
hostnamegithub.com
expected-hostnamegithub.com
None3bd0ff5d28a87b4801a63fb38c2a21a91b0a700dca159dc9416aeae05771b899
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
release67a336083e4dcb40224dc2c01cd4c7ed413bdb09
ui-targetcanary-2
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/151967#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F151967
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
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
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://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
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F151967
Sign up https://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/151967
Reloadhttps://github.com/python/cpython/pull/151967
Reloadhttps://github.com/python/cpython/pull/151967
Please reload this pagehttps://github.com/python/cpython/pull/151967
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/151967
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 34.9k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 73.6k https://github.com/login?return_to=%2Fpython%2Fcpython
Code https://github.com/python/cpython
Issues 5k+ https://github.com/python/cpython/issues
Pull requests 2.3k https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality 0 https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Code https://github.com/python/cpython
Issues https://github.com/python/cpython/issues
Pull requests https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
tonghuaroothttps://github.com/tonghuaroot
python:mainhttps://github.com/python/cpython/tree/main
tonghuaroot:gh-151722-frozendict-fromkeys-ft-racehttps://github.com/tonghuaroot/cpython/tree/gh-151722-frozendict-fromkeys-ft-race
Conversationhttps://github.com/python/cpython/pull/151967
Commits1 (1)https://github.com/python/cpython/pull/151967/commits
Checkshttps://github.com/python/cpython/pull/151967/checks
Files changedhttps://github.com/python/cpython/pull/151967/files
gh-151722: Defer GC tracking of frozendict.fromkeys() result until fully builthttps://github.com/python/cpython/pull/151967#top
tonghuaroothttps://github.com/tonghuaroot
python:mainhttps://github.com/python/cpython/tree/main
tonghuaroot:gh-151722-frozendict-fromkeys-ft-racehttps://github.com/tonghuaroot/cpython/tree/gh-151722-frozendict-fromkeys-ft-race
https://github.com/tonghuaroot
tonghuaroothttps://github.com/tonghuaroot
Jun 23, 2026https://github.com/python/cpython/pull/151967#issue-4723437360
Please reload this pagehttps://github.com/python/cpython/pull/151967
gh-151740https://github.com/python/cpython/pull/151740
gh-151740https://github.com/python/cpython/pull/151740
@corona10https://github.com/corona10
#151722https://github.com/python/cpython/issues/151722
Data race on frozendict reads during construction in the free-threading build #151722https://github.com/python/cpython/issues/151722
Please reload this pagehttps://github.com/python/cpython/pull/151967
https://github.com/tonghuaroot
tonghuaroothttps://github.com/tonghuaroot
ericsnowcurrentlyhttps://github.com/ericsnowcurrently
markshannonhttps://github.com/markshannon
methanehttps://github.com/methane
code ownershttps://github.com/python/cpython/blob/868d9a82cab556a8f5ad1f54e81d39dd325d3f52/.github/CODEOWNERS#L267
June 23, 2026 07:02https://github.com/python/cpython/pull/151967#event-27079042423
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Jun 23, 2026 https://github.com/python/cpython/pull/151967#ref-issue-4699629762
Data race on frozendict reads during construction in the free-threading build #151722 https://github.com/python/cpython/issues/151722
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
Jun 23, 2026https://github.com/python/cpython/pull/151967#event-27079047285
https://github.com/tonghuaroot
pythongh-151722https://github.com/python/cpython/issues/151722
: Defer GC tracking of frozendict.fromkeys() result un…https://github.com/python/cpython/pull/151967/commits/d45e42d901b14167d1a2ee3c88bb5c6625eb7d81
d45e42dhttps://github.com/python/cpython/pull/151967/commits/d45e42d901b14167d1a2ee3c88bb5c6625eb7d81
https://github.com/tonghuaroot
tonghuaroothttps://github.com/tonghuaroot
force-pushedhttps://github.com/python/cpython/compare/302e6465d12542b9164ec4d3911163c95a145a6a..d45e42d901b14167d1a2ee3c88bb5c6625eb7d81
302e646https://github.com/python/cpython/commit/302e6465d12542b9164ec4d3911163c95a145a6a
d45e42dhttps://github.com/python/cpython/commit/d45e42d901b14167d1a2ee3c88bb5c6625eb7d81
Compare https://github.com/python/cpython/compare/302e6465d12542b9164ec4d3911163c95a145a6a..d45e42d901b14167d1a2ee3c88bb5c6625eb7d81
June 23, 2026 07:07https://github.com/python/cpython/pull/151967#event-27079258932
https://github.com/corona10
corona10https://github.com/corona10
Jun 23, 2026https://github.com/python/cpython/pull/151967#event-27081830883
https://github.com/corona10
corona10https://github.com/corona10
Jun 23, 2026https://github.com/python/cpython/pull/151967#issuecomment-4778541922
Please reload this pagehttps://github.com/python/cpython/pull/151967
https://github.com/corona10
corona10https://github.com/corona10
Jun 23, 2026 https://github.com/python/cpython/pull/151967#ref-pullrequest-4728016811
[WIP] gh-151722: Defer GC tracking of frozendict.fromkeys() as possible #152021 https://github.com/python/cpython/pull/152021
https://github.com/vstinner
vstinnerhttps://github.com/vstinner
Jun 25, 2026https://github.com/python/cpython/pull/151967#issuecomment-4803134585
#152067https://github.com/python/cpython/pull/152067
Please reload this pagehttps://github.com/python/cpython/pull/151967
https://github.com/vstinner
vstinnerhttps://github.com/vstinner
Jun 25, 2026https://github.com/python/cpython/pull/151967#event-27215709175
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%2F151967
https://github.com/ericsnowcurrently
ericsnowcurrently https://github.com/ericsnowcurrently
https://github.com/methane
methane https://github.com/methane
https://github.com/markshannon
markshannon https://github.com/markshannon
https://github.com/corona10
corona10 https://github.com/corona10
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Please reload this pagehttps://github.com/python/cpython/pull/151967
https://github.com/tonghuaroot
https://github.com/corona10
https://github.com/vstinner
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.