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[3.13] gh-98820: Fix quadratic time in csv.Sniffer for quoted fields (GH-154867) #204399

[3.13] gh-98820: Fix quadratic time in csv.Sniffer for quoted fields (GH-154867)

[3.13] gh-98820: Fix quadratic time in csv.Sniffer for quoted fields (GH-154867) #204399

Triggered via pull request August 3, 2026 12:26
Status Failure
Total duration 25m 16s
Artifacts 4

build.yml

on: pull_request
Change detection  /  Create context from changed files
10s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests with OpenSSL
Matrix: build-ubuntu
Matrix: build-windows-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Docs  /  Docs
1m 59s
Docs / Docs
Docs  /  Doctest
6m 1s
Docs / Doctest
Docs  /  Check EPUB
2m 7s
Docs / Check EPUB
Check if Autoconf files are up to date
28s
Check if Autoconf files are up to date
Check if generated files are up to date
5m 6s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
9s
C API Docs / Check if all C APIs are documented
WASI  /  build and test
6m 34s
WASI / build and test
Hypothesis tests on Ubuntu
7m 57s
Hypothesis tests on Ubuntu
Check if the ABI has changed
1m 34s
Check if the ABI has changed
Matrix: build-android
All required checks pass
2s
All required checks pass
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Annotations

2 errors and 16 warnings
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
Check if the ABI has changed
The `python-version` input is not set. The version of Python currently in `PATH` will be used.
Windows / build (arm64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows (free-threading) / build (arm64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
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.
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Modules/_decimal/libmpdec/io.c#L349
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Address sanitizer (ubuntu-24.04): Python/import.c#L1197
‘__builtin_strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
Address sanitizer (ubuntu-24.04): Include/internal/pycore_dict.h#L302
writing 1 byte into a region of size 0 [-Wstringop-overflow=]
Windows / build and test (x64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]
Windows (free-threading) / build and test (x64): Modules/unicodedata.c#L1568
'function': conversion from 'size_t' to 'int', possible loss of data [D:\a\cpython\cpython\PCbuild\unicodedata.vcxproj]

Artifacts

Produced during runtime
Name Size Digest
TSan-logs-free-threading
1.61 KB
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address-artifacts
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sha256:0bc6b0ced0370a73e8df8985ed8e67aebbe871d162accd4a14c2123e85a78135
memory-artifacts
1.91 KB
sha256:0f38eaae8b147fc4ff3b50ef347aab11087b14e0c72ff928fe35901a985344d9
undefined-artifacts
1.88 KB
sha256:29541ecf01830e4e3a1ffef0706fbd0f4673728347d05215c2959565aba8aee0