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gh-158675: Fix Pool.imap(buffersize=...) dropping results after close() #216939

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gh-158675: Fix Pool.imap(buffersize=...) dropping results after close()

gh-158675: Fix Pool.imap(buffersize=...) dropping results after close() #216939

Triggered via pull request October 28, 2026 17:42
@oyiakoumisoyiakoumis
synchronize #158676
oyiakoumis:fix-imap-buffersize-close
Status Failure
Total duration 38m 30s
Artifacts 4

build.yml

on: pull_request
Change detection  /  Create context from changed files
34s
Change detection / Create context from changed files
Matrix: build-ios
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
Waiting for pending jobs
Docs  /  Doctest
8m 5s
Docs / Doctest
Docs  /  Check EPUB
2m 47s
Docs / Check EPUB
Check if Autoconf files are up to date
41s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 29s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
43s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 3s
Ubuntu (installed) / build, install and test
Emscripten  /  build and test
19m 41s
Emscripten / build and test
WASI  /  build and test
4m 40s
WASI / build and test
Hypothesis tests on Ubuntu
10m 52s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
12m 53s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
5m 27s
Cross build Linux
Docs  /  Docs
2m 47s
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 42s
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

5 errors, 4 warnings, and 11 notices
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
Sanitizers / UBSan
Process completed with exit code 2.
test_fork (test.test_multiprocessing_fork.test_processes.WithProcessesTestQueue.test_fork): Lib/contextlib.py#L116
AssertionError: 10 != 1
All required checks pass
Process completed with exit code 1.
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-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"
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"
Android (aarch64)
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.
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
iOS (free-threading)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
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
ASan-logs-default
2.49 KB
sha256:1457cde8496f8ead1d5375fc3f46d04fb530fe9cfe311bc5ad20d7e2467a1714
MSan-logs-default
209 Bytes
sha256:de1aaa7c6abdf84502583c9bf13677ca06a0e36b556891889945fed0d941c863
UBSan-logs-default
1.51 KB
sha256:57888f4ce0d70dbf7cb8cecd31f518d791ac686d3052a6090a1c080f09e6e3e8
html-ids-head.json.gz
133 KB
sha256:9d76f41a3ee6e23b3e0dc2eeda5e5c6042282b6825187694ef5e6bb8a8511f54