René's URL Explorer Experiment


Title: Fix is_overlapping_types for generic callables by hauntsaninja · Pull Request #21208 · python/mypy · GitHub

Open Graph Title: Fix is_overlapping_types for generic callables by hauntsaninja · Pull Request #21208 · python/mypy

X Title: Fix is_overlapping_types for generic callables by hauntsaninja · Pull Request #21208 · python/mypy

Description: Optional static typing for Python. Contribute to python/mypy development by creating an account on GitHub.

Open Graph Description: Fixes #21182 This issue exposed this pre-existing deficiency in is_overlapping_types

X Description: Fixes #21182 This issue exposed this pre-existing deficiency in is_overlapping_types

Opengraph URL: https://github.com/python/mypy/pull/21208

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-noncev2:25bfe057-8960-e88f-693c-ef471ed07f28
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-id9982:260137:C2111F:11728B3:6A5A0092
html-safe-nonce463f6e1a79b52a27e517da71d48137c4cba9423dc1178a4dbd08d618b3192b08
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiI5OTgyOjI2MDEzNzpDMjExMUY6MTE3MjhCMzo2QTVBMDA5MiIsInZpc2l0b3JfaWQiOiIxMDAyMjI0MTk1MDM0ODA4NDY2IiwicmVnaW9uX2VkZ2UiOiJpYWQiLCJyZWdpb25fcmVuZGVyIjoiaWFkIn0=
visitor-hmaca5921497d98a4f723d75595f0cdec72266807722d5124d5e05dc3730e43d9f44
hovercard-subject-tagpull_request:3521384184
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/mypy/21208/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/82a4f4a07fd998c1507cbfa5b32c63839e481cacb51788b4d02c12c38bafe006/python/mypy/pull/21208
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/82a4f4a07fd998c1507cbfa5b32c63839e481cacb51788b4d02c12c38bafe006/python/mypy/pull/21208
og:image:altFixes #21182 This issue exposed this pre-existing deficiency in is_overlapping_types
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamehauntsaninja
hostnamegithub.com
expected-hostnamegithub.com
None4d3f961cfc83a4348ee5be7691cf4ae3515aab3ef5200c13a7e41b048125fb61
turbo-cache-controlno-cache
go-importgithub.com/python/mypy git https://github.com/python/mypy.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id7053637
octolytics-dimension-repository_nwopython/mypy
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id7053637
octolytics-dimension-repository_network_root_nwopython/mypy
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
releaseac4d28603af300ac851b62521abb878ab5d3319a
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/mypy/pull/21208#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fmypy%2Fpull%2F21208
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%2Fmypy%2Fpull%2F21208
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%2Fmypy
Reloadhttps://github.com/python/mypy/pull/21208
Reloadhttps://github.com/python/mypy/pull/21208
Reloadhttps://github.com/python/mypy/pull/21208
Please reload this pagehttps://github.com/python/mypy/pull/21208
python https://github.com/python
mypyhttps://github.com/python/mypy
Please reload this pagehttps://github.com/python/mypy/pull/21208
Notifications https://github.com/login?return_to=%2Fpython%2Fmypy
Fork 3.2k https://github.com/login?return_to=%2Fpython%2Fmypy
Star 20.5k https://github.com/login?return_to=%2Fpython%2Fmypy
Code https://github.com/python/mypy
Issues 2.7k https://github.com/python/mypy/issues
Pull requests 466 https://github.com/python/mypy/pulls
Actions https://github.com/python/mypy/actions
Projects https://github.com/python/mypy/projects
Wiki https://github.com/python/mypy/wiki
Security and quality 0 https://github.com/python/mypy/security
Insights https://github.com/python/mypy/pulse
Code https://github.com/python/mypy
Issues https://github.com/python/mypy/issues
Pull requests https://github.com/python/mypy/pulls
Actions https://github.com/python/mypy/actions
Projects https://github.com/python/mypy/projects
Wiki https://github.com/python/mypy/wiki
Security and quality https://github.com/python/mypy/security
Insights https://github.com/python/mypy/pulse
hauntsaninjahttps://github.com/hauntsaninja
python:masterhttps://github.com/python/mypy/tree/master
hauntsaninja:genericoverlaphttps://github.com/hauntsaninja/mypy/tree/genericoverlap
Conversationhttps://github.com/python/mypy/pull/21208
Commits4 (4)https://github.com/python/mypy/pull/21208/commits
Checkshttps://github.com/python/mypy/pull/21208/checks
Files changedhttps://github.com/python/mypy/pull/21208/files
Fix is_overlapping_types for generic callableshttps://github.com/python/mypy/pull/21208#top
hauntsaninjahttps://github.com/hauntsaninja
python:masterhttps://github.com/python/mypy/tree/master
hauntsaninja:genericoverlaphttps://github.com/hauntsaninja/mypy/tree/genericoverlap
https://github.com/hauntsaninja
hauntsaninjahttps://github.com/hauntsaninja
Apr 13, 2026https://github.com/python/mypy/pull/21208#issue-4251984677
#21182https://github.com/python/mypy/issues/21182
Please reload this pagehttps://github.com/python/mypy/pull/21208
https://github.com/hauntsaninja
Fix is_overlapping_types for generic callableshttps://github.com/python/mypy/pull/21208/commits/0ed9283be4f5b8c4190eb3a3779ccf49773e4670
0ed9283https://github.com/python/mypy/pull/21208/commits/0ed9283be4f5b8c4190eb3a3779ccf49773e4670
python#21182https://github.com/python/mypy/issues/21182
fix: prevent false unreachable error when comparing generic callables #21188 https://github.com/python/mypy/pull/21188
1.20 and 2.0 Release Planning #20726 https://github.com/python/mypy/issues/20726
https://github.com/marketplace/pre-commit-ci
[pre-commit.ci] auto fixes from pre-commit.com hookshttps://github.com/python/mypy/pull/21208/commits/b0db492ba23008abb36926e73009010d621d05be
b0db492https://github.com/python/mypy/pull/21208/commits/b0db492ba23008abb36926e73009010d621d05be
https://pre-commit.cihttps://pre-commit.ci
https://github.com/apps/github-actions
github-actionshttps://github.com/apps/github-actions
Apr 13, 2026 https://github.com/python/mypy/pull/21208#ref-issue-4251989919
Check #21208 sterliakov/mypy-issues#286 https://github.com/sterliakov/mypy-issues/issues/286
https://github.com/apps/github-actions
Sign in to viewhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fmypy%2Fpull%2F21208
https://github.com/ilevkivskyi
ilevkivskyihttps://github.com/ilevkivskyi
Apr 13, 2026 https://github.com/python/mypy/pull/21208#pullrequestreview-4097832638
View reviewed changes https://github.com/python/mypy/pull/21208/files/b0db492ba23008abb36926e73009010d621d05be
ilevkivskyihttps://github.com/ilevkivskyi
https://github.com/python/mypy/pull/21208#pullrequestreview-4097832638
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
Please reload this pagehttps://github.com/python/mypy/pull/21208
test-data/unit/check-narrowing.testhttps://github.com/python/mypy/pull/21208/files/b0db492ba23008abb36926e73009010d621d05be#diff-0413401ad6a91bc5c66579455009ba606ee0ddfb0a78278c9e53618c83b53ed5
ilevkivskyihttps://github.com/ilevkivskyi
Apr 13, 2026https://github.com/python/mypy/pull/21208#discussion_r3072182833
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
Please reload this pagehttps://github.com/python/mypy/pull/21208
https://github.com/hauntsaninja
add todohttps://github.com/python/mypy/pull/21208/commits/3f69a59a39de31660fca78726629e8ad325971a2
3f69a59https://github.com/python/mypy/pull/21208/commits/3f69a59a39de31660fca78726629e8ad325971a2
https://github.com/apps/github-actions
Sign in to viewhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fmypy%2Fpull%2F21208
https://github.com/hauntsaninja
Merge branch 'master' into genericoverlaphttps://github.com/python/mypy/pull/21208/commits/24bc7bb9881c89456566a90f3e77d675704d8b36
24bc7bbhttps://github.com/python/mypy/pull/21208/commits/24bc7bb9881c89456566a90f3e77d675704d8b36
https://github.com/apps/github-actions
github-actionshttps://github.com/apps/github-actions
Apr 13, 2026https://github.com/python/mypy/pull/21208#issuecomment-4238874658
mypy_primerhttps://github.com/hauntsaninja/mypy_primer
Please reload this pagehttps://github.com/python/mypy/pull/21208
https://github.com/hauntsaninja
hauntsaninjahttps://github.com/hauntsaninja
8f2e6adhttps://github.com/python/mypy/commit/8f2e6ad835c6499b42492bcd45265f83679a4bc9
Apr 13, 2026https://github.com/python/mypy/pull/21208#event-24460400145
Please reload this pagehttps://github.com/python/mypy/pull/21208
https://github.com/hauntsaninja
hauntsaninjahttps://github.com/hauntsaninja
April 13, 2026 19:40https://github.com/python/mypy/pull/21208#event-24460401543
JukkaLhttps://github.com/JukkaL
Apr 21, 2026 https://github.com/python/mypy/pull/21208#ref-commit-0dcbfaa
https://github.com/hauntsaninja
https://github.com/JukkaL
Fix is_overlapping_types for generic callables (https://github.com/python/mypy/commit/0dcbfaa40b0e360a16baea9cf851955375d91b54
#21208https://github.com/python/mypy/pull/21208
)https://github.com/python/mypy/commit/0dcbfaa40b0e360a16baea9cf851955375d91b54
0dcbfaahttps://github.com/python/mypy/commit/0dcbfaa40b0e360a16baea9cf851955375d91b54
#21182https://github.com/python/mypy/issues/21182
https://github.co/hiddenchars
https://github.com/python/mypy/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%2Fmypy%2Fpull%2F21208
https://github.com/ilevkivskyi
ilevkivskyi https://github.com/ilevkivskyi
https://github.com/python/mypy/pull/21208/files/b0db492ba23008abb36926e73009010d621d05be
[1.20 regression] unreachable regression with generic Callable https://github.com/python/mypy/issues/21182
Please reload this pagehttps://github.com/python/mypy/pull/21208
https://github.com/hauntsaninja
https://github.com/ilevkivskyi
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.