René's URL Explorer Experiment


Title: [3.14] gh-139103: fix free-threading `dataclass.__init__` perf issue (gh-141596) by colesbury · Pull Request #141750 · python/cpython · GitHub

Open Graph Title: [3.14] gh-139103: fix free-threading `dataclass.__init__` perf issue (gh-141596) by colesbury · Pull Request #141750 · python/cpython

X Title: [3.14] gh-139103: fix free-threading `dataclass.__init__` perf issue (gh-141596) by colesbury · Pull Request #141750 · python/cpython

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

Open Graph Description: The dataclasses __init__ function is generated dynamically by a call to exec() and so doesn't have deferred reference counting enabled. Enable deferred reference counting on functions when assi...

X Description: The dataclasses __init__ function is generated dynamically by a call to exec() and so doesn't have deferred reference counting enabled. Enable deferred reference counting on functions when ...

Opengraph URL: https://github.com/python/cpython/pull/141750

X: @github

direct link

Domain: github.com

route-pattern/:user_id/:repository/pull/:id/checks(.:format)
route-controllerpull_requests
route-actionchecks
fetch-noncev2:72804a70-c2f3-1c45-fea0-24af934d9bff
current-catalog-service-hash87dc3bc62d9b466312751bfd5f889726f4f1337bdff4e8be7da7c93d6c00a25a
request-idB7C4:3B15E4:D5744D:11E1964:6A56B056
html-safe-nonceda44f14a34be95f588af8f295c9ee9764509a4a3976789b018fd85899fd0fabc
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJCN0M0OjNCMTVFNDpENTc0NEQ6MTFFMTk2NDo2QTU2QjA1NiIsInZpc2l0b3JfaWQiOiI2MDU3NzEyNzkxOTMwMTg3ODYzIiwicmVnaW9uX2VkZ2UiOiJpYWQiLCJyZWdpb25fcmVuZGVyIjoiaWFkIn0=
visitor-hmac19ffe41f1e032129f4a6855259a08f06d9d31ff84e75c25d14bdeb4e6dc98318
hovercard-subject-tagpull_request:3026070353
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,checks,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///pull_requests/show/checks
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/python/cpython/pull/141750/checks
twitter:imagehttps://opengraph.githubassets.com/c5458dbc1d2bf6594d755f27ccb64dd85443bb3a0896cd7b11c9ec3437df6342/python/cpython/pull/141750
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/c5458dbc1d2bf6594d755f27ccb64dd85443bb3a0896cd7b11c9ec3437df6342/python/cpython/pull/141750
og:image:altThe dataclasses __init__ function is generated dynamically by a call to exec() and so doesn't have deferred reference counting enabled. Enable deferred reference counting on functions when assi...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamecolesbury
hostnamegithub.com
expected-hostnamegithub.com
Nonedf99b7164e1d961b639cf5d3cbd6b5ba673edc67bd7e47cdc4746b96099e11ae
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
releasec29ba03b1896083dbe1084f6cd1c5367d8a0d67c
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/141750/checks#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F141750%2Fchecks
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%2F141750%2Fchecks
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%2Fpull_requests%2Fshow%2Fchecks&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/pull/141750/checks
Reloadhttps://github.com/python/cpython/pull/141750/checks
Reloadhttps://github.com/python/cpython/pull/141750/checks
Please reload this pagehttps://github.com/python/cpython/pull/141750/checks
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/141750/checks
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 35k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 73.8k 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
colesburyhttps://github.com/colesbury
python:3.14https://github.com/python/cpython/tree/3.14
colesbury:backport-ce79154-3.14https://github.com/colesbury/cpython/tree/backport-ce79154-3.14
Conversationhttps://github.com/python/cpython/pull/141750
Commits1 (1)https://github.com/python/cpython/pull/141750/commits
Checkshttps://github.com/python/cpython/pull/141750/checks
Files changedhttps://github.com/python/cpython/pull/141750/files
[3.14] gh-139103: fix free-threading dataclass.__init__ perf issue (gh-141596)https://github.com/python/cpython/pull/141750/checks#top
colesburyhttps://github.com/colesbury
python:3.14https://github.com/python/cpython/tree/3.14
colesbury:backport-ce79154-3.14https://github.com/colesbury/cpython/tree/backport-ce79154-3.14
Please reload this pagehttps://github.com/python/cpython/pull/141750/checks
Sign in for the full log viewhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F141750%2Fchecks
Check labels on: pull_request https://github.com/python/cpython/actions/runs/19504677911
DO-NOT-MERGE https://github.com/python/cpython/actions/runs/19504677911/job/55827587093?pr=141750
Unresolved review https://github.com/python/cpython/actions/runs/19504677911/job/55827587177?pr=141750
Tests on: pull_request https://github.com/python/cpython/actions/runs/19504677924
Change detection / Create context from changed files https://github.com/python/cpython/actions/runs/19504677924/job/55827587561?pr=141750
Docs / Docs https://github.com/python/cpython/actions/runs/19504677924/job/55827622420?pr=141750
Docs / Doctest https://github.com/python/cpython/actions/runs/19504677924/job/55827622429?pr=141750
Docs / Check EPUB https://github.com/python/cpython/actions/runs/19504677924/job/55827622482?pr=141750
Check if the ABI has changed https://github.com/python/cpython/actions/runs/19504677924/job/55827618804?pr=141750
Check if Autoconf files are up to date https://github.com/python/cpython/actions/runs/19504677924/job/55827619412?pr=141750
Check if generated files are up to date https://github.com/python/cpython/actions/runs/19504677924/job/55827619382?pr=141750
Windows / Build and test (x64) https://github.com/python/cpython/actions/runs/19504677924/job/55827621969?pr=141750
Windows (free-threading) / Build and test (x64) https://github.com/python/cpython/actions/runs/19504677924/job/55827621959?pr=141750
Windows / Build and test (Win32) https://github.com/python/cpython/actions/runs/19504677924/job/55827621725?pr=141750
Windows / Build and test (arm64) https://github.com/python/cpython/actions/runs/19504677924/job/55827621767?pr=141750
Windows (free-threading) / Build and test (arm64) https://github.com/python/cpython/actions/runs/19504677924/job/55827621779?pr=141750
Windows MSI${{ '' }} https://github.com/python/cpython/actions/runs/19504677924/job/55827619210?pr=141750
macOS / build and test (macos-14) https://github.com/python/cpython/actions/runs/19504677924/job/55827622208?pr=141750
macOS (free-threading) / build and test (macos-14) https://github.com/python/cpython/actions/runs/19504677924/job/55827622262?pr=141750
macOS / build and test (macos-15-intel) https://github.com/python/cpython/actions/runs/19504677924/job/55827622293?pr=141750
Ubuntu / build and test (ubuntu-24.04) https://github.com/python/cpython/actions/runs/19504677924/job/55827621683?pr=141750
Ubuntu / build and test (ubuntu-24.04-arm) https://github.com/python/cpython/actions/runs/19504677924/job/55827621703?pr=141750
Ubuntu (free-threading) / build and test (ubuntu-24.04) https://github.com/python/cpython/actions/runs/19504677924/job/55827621635?pr=141750
Ubuntu (free-threading) / build and test (ubuntu-24.04-arm) https://github.com/python/cpython/actions/runs/19504677924/job/55827621701?pr=141750
Ubuntu (bolt) / build and test (ubuntu-24.04) https://github.com/python/cpython/actions/runs/19504677924/job/55827621764?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 1.1.1w) https://github.com/python/cpython/actions/runs/19504677924/job/55827619381?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.0.18) https://github.com/python/cpython/actions/runs/19504677924/job/55827619423?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.2.6) https://github.com/python/cpython/actions/runs/19504677924/job/55827619356?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.3.5) https://github.com/python/cpython/actions/runs/19504677924/job/55827619386?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.4.3) https://github.com/python/cpython/actions/runs/19504677924/job/55827619406?pr=141750
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.5.4) https://github.com/python/cpython/actions/runs/19504677924/job/55827619371?pr=141750
Android (aarch64) https://github.com/python/cpython/actions/runs/19504677924/job/55827619378?pr=141750
Android (x86_64) https://github.com/python/cpython/actions/runs/19504677924/job/55827619362?pr=141750
iOS https://github.com/python/cpython/actions/runs/19504677924/job/55827619311?pr=141750
WASI / build and test https://github.com/python/cpython/actions/runs/19504677924/job/55827620404?pr=141750
Hypothesis tests on Ubuntu https://github.com/python/cpython/actions/runs/19504677924/job/55827619496?pr=141750
Address sanitizer (ubuntu-24.04) https://github.com/python/cpython/actions/runs/19504677924/job/55827619578?pr=141750
Sanitizers / TSan https://github.com/python/cpython/actions/runs/19504677924/job/55827622095?pr=141750
Sanitizers / TSan (free-threading) https://github.com/python/cpython/actions/runs/19504677924/job/55827622144?pr=141750
Sanitizers / UBSan https://github.com/python/cpython/actions/runs/19504677924/job/55827622198?pr=141750
Cross build Linux https://github.com/python/cpython/actions/runs/19504677924/job/55827619274?pr=141750
CIFuzz https://github.com/python/cpython/actions/runs/19504677924/job/55827619566?pr=141750
All required checks pass https://github.com/python/cpython/actions/runs/19504677924/job/55831672270?pr=141750
Lint on: pull_request https://github.com/python/cpython/actions/runs/19504677939
lint https://github.com/python/cpython/actions/runs/19504677939/job/55827606891?pr=141750
Check labels on: pull_request https://github.com/python/cpython/actions/runs/19504680157
DO-NOT-MERGE https://github.com/python/cpython/actions/runs/19504680157/job/55827601421?pr=141750
Unresolved review https://github.com/python/cpython/actions/runs/19504680157/job/55827601411?pr=141750
Check labels on: pull_request https://github.com/python/cpython/actions/runs/19504680599
DO-NOT-MERGE https://github.com/python/cpython/actions/runs/19504680599/job/55827596788?pr=141750
Unresolved review https://github.com/python/cpython/actions/runs/19504680599/job/55827596776?pr=141750
Check labels on: pull_request https://github.com/python/cpython/actions/runs/19505836131
DO-NOT-MERGE https://github.com/python/cpython/actions/runs/19505836131/job/55831704187?pr=141750
Unresolved review https://github.com/python/cpython/actions/runs/19505836131/job/55831704177?pr=141750
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.