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gh-159191: Add a fast path to bytes.join() for exact bytes items #213211

gh-159191: Add a fast path to bytes.join() for exact bytes items

gh-159191: Add a fast path to bytes.join() for exact bytes items #213211

Triggered via pull request October 12, 2026 03:53
Status Success
Total duration 29m 29s
Artifacts 3

build.yml

on: pull_request
Change detection  /  Create context from changed files
14s
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 10s
Docs / Doctest
Docs  /  Check EPUB
2m 19s
Docs / Check EPUB
Check if Autoconf files are up to date
26s
Check if Autoconf files are up to date
Check if generated files are up to date
3m 17s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
10s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
5m 49s
Ubuntu (installed) / build, install and test
iOS
18m 41s
iOS
Emscripten  /  build and test
15m 29s
Emscripten / build and test
WASI  /  build and test
4m 19s
WASI / build and test
Hypothesis tests on Ubuntu
11m 37s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
12m 25s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
4m 40s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 22s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
2s
All required checks pass
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Annotations

2 errors, 4 warnings, and 13 notices
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!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`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Change detection / Create context from changed files
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
C API Docs / Check if all C APIs are documented
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Docs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check EPUB
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Android (aarch64)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
Docs / Check for removed HTML IDs / Check for removed HTML IDs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
CIFuzz / cpython3 (undefined)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
CIFuzz / cpython3 (address)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
CIFuzz / cpython3 (memory)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
All required checks pass
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

Artifacts

Produced during runtime
Name Size Digest
MSan-logs-default
209 Bytes
sha256:616b8cab74f9660d8522b5673040a04dce32298f8b23aa6eb7a3e80504d12509
UBSan-logs-default
1.5 KB
sha256:68cb18df42b9f1eeacd593c21a51e5940f53afa610933053584b357bb71e657e
html-ids-head.json.gz
130 KB
sha256:b70855390c0347d8d46aa553388b1bb92a68d860b98682594db13f2195285600