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gh-156955: Speed up csv.writer by caching the set of special characters #208990

gh-156955: Speed up csv.writer by caching the set of special characters

gh-156955: Speed up csv.writer by caching the set of special characters #208990

Triggered via pull request September 11, 2026 09:15
Status Success
Total duration 33m 43s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
13s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
Docs  /  Doctest
7m 0s
Docs / Doctest
Docs  /  Check EPUB
2m 27s
Docs / Check EPUB
Check if Autoconf files are up to date
2m 39s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 42s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
11s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 13s
Ubuntu (installed) / build, install and test
iOS
18m 8s
iOS
Emscripten  /  build and test
21m 8s
Emscripten / build and test
WASI  /  build and test
5m 8s
WASI / build and test
Hypothesis tests on Ubuntu
17m 35s
Hypothesis tests on Ubuntu
Cross build Linux
4m 26s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 13s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
3s
All required checks pass
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Annotations

2 errors, 7 warnings, and 2 notices
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
Cross build Linux: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Ubuntu (installed) / build, install and test: Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Address sanitizer (ubuntu-26.04): Parser/lexer/string.c#L81
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Windows / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"
Windows (free-threading) / Build and test (arm64, switch-case)
"The windows-11-arm label will migrate to use Visual Studio 2026 by default beginning September 21, 2026. For more information see https://github.com/actions/runner-images/issues/14602"

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
1.59 KB
sha256:e8ab2b60d05994322a78cd75671313943e9ac662db64b82b841213566cfa4f5a
html-ids-head.json.gz
126 KB
sha256:36322be851606db8ce082b2f7ec754cca9b0b44e6eafb3eb3b2665227e5f5498