René's URL Explorer Experiment


Title: Incorrect calculation of indentation width in case of mixed tabs and spaces in plistlib · Issue #143346 · python/cpython · GitHub

Open Graph Title: Incorrect calculation of indentation width in case of mixed tabs and spaces in plistlib · Issue #143346 · python/cpython

X Title: Incorrect calculation of indentation width in case of mixed tabs and spaces in plistlib · Issue #143346 · python/cpython

Description: Bug report There is the indent parameter in plistlib._PlistWriter, which is b'\t' by default. write_bytes() calculates the width of the indentation, but doe it incorrect if the indentation is a mix of tabs and spaces. Now, there is no pu...

Open Graph Description: Bug report There is the indent parameter in plistlib._PlistWriter, which is b'\t' by default. write_bytes() calculates the width of the indentation, but doe it incorrect if the indentation is a mix...

X Description: Bug report There is the indent parameter in plistlib._PlistWriter, which is b'\t' by default. write_bytes() calculates the width of the indentation, but doe it incorrect if the indentation ...

Opengraph URL: https://github.com/python/cpython/issues/143346

X: @github

direct link

Domain: github.com

Hey, it has json ld scripts: 
{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Incorrect calculation of indentation width in case of mixed tabs and spaces in plistlib","articleBody":"# Bug report\n\nThere is the `indent` parameter in `plistlib._PlistWriter`, which is `b'\\t'` by default. `write_bytes()` calculates the width of the indentation, but doe it incorrect if the indentation is a mix of tabs and spaces.\n\nNow, there is no public API to specify `indent`. it is always `b'\\t'`, for which an incorrect code works correctly. But if someone uses private `plistlib._PlistWriter`, they can encounter that bug.\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-143347\n* gh-143719\n* gh-143720\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/serhiy-storchaka","@type":"Person","name":"serhiy-storchaka"},"datePublished":"2026-01-02T10:53:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/143346/cpython/issues/143346"}
route-pattern/_view_fragments/issues/show/:user_id/:repository/:id/issue_layout(.:format)
route-controllervoltron_issues_fragments
route-actionissue_layout
fetch-noncev2:2c031f97-5995-377d-59fa-5fc468fcd08b
current-catalog-service-hash81bb79d38c15960b92d99bca9288a9108c7a47b18f2423d0f6438c5b7bcd2114
request-idCCB0:2A6639:98F50:C6D50:696AFBEA
html-safe-nonce68282c715bd3228d0d75a14f029097a129e794145c0dce111333e6662202de7a
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJDQ0IwOjJBNjYzOTo5OEY1MDpDNkQ1MDo2OTZBRkJFQSIsInZpc2l0b3JfaWQiOiI0MDE1MTI3OTM5MDkzNTYwMjk4IiwicmVnaW9uX2VkZ2UiOiJpYWQiLCJyZWdpb25fcmVuZGVyIjoiaWFkIn0=
visitor-hmacd9929e9b8669aec6e382fdd782d83557e2a3be3323d67f4825d6f9ed39d9a847
hovercard-subject-tagissue:3776119166
github-keyboard-shortcutsrepository,issues,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/issues_fragments/issue_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/issues/show/python/cpython/143346/issue_layout
twitter:imagehttps://opengraph.githubassets.com/e7d26155bfa8e5db3701b069b2e11c7ff1bc1550e1bb2048754dcbcfb5aac55a/python/cpython/issues/143346
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/e7d26155bfa8e5db3701b069b2e11c7ff1bc1550e1bb2048754dcbcfb5aac55a/python/cpython/issues/143346
og:image:altBug report There is the indent parameter in plistlib._PlistWriter, which is b'\t' by default. write_bytes() calculates the width of the indentation, but doe it incorrect if the indentation is a mix...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernameserhiy-storchaka
hostnamegithub.com
expected-hostnamegithub.com
None5f99f7c1d70f01da5b93e5ca90303359738944d8ab470e396496262c66e60b8d
turbo-cache-controlno-preview
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
release82560a55c6b2054555076f46e683151ee28a19bc
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/issues/143346#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fissues%2F143346
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub SparkBuild and deploy intelligent appshttps://github.com/features/spark
GitHub ModelsManage and compare promptshttps://github.com/features/models
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
GitHub SponsorsFund open source developershttps://github.com/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/accelerator
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/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%2Fissues%2F143346
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%2Fissues_fragments%2Fissue_layout&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/issues/143346
Reloadhttps://github.com/python/cpython/issues/143346
Reloadhttps://github.com/python/cpython/issues/143346
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/issues/143346
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 33.9k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 71.1k https://github.com/login?return_to=%2Fpython%2Fcpython
Code https://github.com/python/cpython
Issues 5k+ https://github.com/python/cpython/issues
Pull requests 2.1k https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects 31 https://github.com/python/cpython/projects
Security Uh oh! There was an error while loading. Please reload this page. https://github.com/python/cpython/security
Please reload this pagehttps://github.com/python/cpython/issues/143346
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 https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
New issuehttps://github.com/login?return_to=https://github.com/python/cpython/issues/143346
New issuehttps://github.com/login?return_to=https://github.com/python/cpython/issues/143346
Incorrect calculation of indentation width in case of mixed tabs and spaces in plistlibhttps://github.com/python/cpython/issues/143346#top
https://github.com/ronaldoussoren
3.13bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.13%22
3.14bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.14%22
3.15new features, bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.15%22
OS-machttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22OS-mac%22
stdlibStandard Library Python modules in the Lib/ directoryhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22stdlib%22
type-bugAn unexpected behavior, bug, or errorhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22type-bug%22
https://github.com/serhiy-storchaka
https://github.com/serhiy-storchaka
serhiy-storchakahttps://github.com/serhiy-storchaka
on Jan 2, 2026https://github.com/python/cpython/issues/143346#issue-3776119166
gh-143346: Fix calculation of the line width for wrapped Base64 in plistlib #143347https://github.com/python/cpython/pull/143347
[3.14] gh-143346: Fix calculation of the line width for wrapped Base64 in plistlib (GH-143347) #143719https://github.com/python/cpython/pull/143719
[3.13] gh-143346: Fix calculation of the line width for wrapped Base64 in plistlib (GH-143347) #143720https://github.com/python/cpython/pull/143720
ronaldoussorenhttps://github.com/ronaldoussoren
3.13bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.13%22
3.14bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.14%22
3.15new features, bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.15%22
OS-machttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22OS-mac%22
stdlibStandard Library Python modules in the Lib/ directoryhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22stdlib%22
type-bugAn unexpected behavior, bug, or errorhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22type-bug%22
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.