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BUG: read_csv with pyarrow engine cannot handle single-line CSV files #26659

BUG: read_csv with pyarrow engine cannot handle single-line CSV files

BUG: read_csv with pyarrow engine cannot handle single-line CSV files #26659

Triggered via pull request October 10, 2025 09:58
Status Failure
Total duration 54m 17s
Artifacts 1

unit-tests.yml

on: pull_request
Matrix: macos-windows
Matrix: python-dev
Matrix: ubuntu
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9 errors and 26 warnings
python-dev (ubuntu-24.04)
Process completed with exit code 1.
python-dev (windows-2025)
Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run
python-dev (windows-2025)
Process completed with exit code 1.
Numpy Dev
Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run
Numpy Dev
Process completed with exit code 1.
python-dev (macOS-14)
Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run
python-dev (macOS-14)
Process completed with exit code 1.
python-dev (macOS-13)
Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run
python-dev (macOS-13)
Process completed with exit code 1.
Freethreading
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Numpy Dev
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Pyodide build
Failed to save: <h2>Our services aren't available right now</h2><p>We're working to restore all services as soon as possible. Please check back soon.</p>0C9noaAAAAACKh4rp0orbTasZJXqKpJ3lREVOMzAxMDAwMTA0MDIzAEVkZ2U=
Pyodide build
No cached files found at path "/home/runner/work/pandas/pandas/emsdk-cache" - downloading and caching emsdk.
Pyodide build
Failed to restore: Cache service responded with 400
Without PyArrow
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Without PyArrow
Failed to save: Unable to reserve cache with key micromamba-environment--linux-64-test-args-4f53cda-root-dcc80ee-bin-d2edc1ba4d7ee2a8dabe8913906c08a42cf169bb65e50fc0d53a37b44e2bdd1e-file-2ea4b81a7e08391d0a2ed43da8b6b8c3b4f57de6eb248bb889a4bff2c17c4048, another job may be creating this cache.
Pyarrow Nightly
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Minimum Versions
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Locale: it_IT
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Locale: it_IT
Failed to save: Unable to reserve cache with key micromamba-environment--linux-64-test-args-4f53cda-root-dcc80ee-bin-d2edc1ba4d7ee2a8dabe8913906c08a42cf169bb65e50fc0d53a37b44e2bdd1e-file-51e02878e993e3dd6975f339272bcdb9fe8c1f2ffa4baf8dd6936408bbe25d4d, another job may be creating this cache.
Locale: zh_CN
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
Locale: zh_CN
Failed to save: Unable to reserve cache with key micromamba-environment--linux-64-test-args-4f53cda-root-dcc80ee-bin-d2edc1ba4d7ee2a8dabe8913906c08a42cf169bb65e50fc0d53a37b44e2bdd1e-file-51e02878e993e3dd6975f339272bcdb9fe8c1f2ffa4baf8dd6936408bbe25d4d, another job may be creating this cache.
macos-14 actions-312.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--osx-arm64, another job may be creating this cache.
macos-14 actions-311.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--osx-arm64, another job may be creating this cache.
ubuntu-24.04-arm actions-311.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-aarch64, another job may be creating this cache.
ubuntu-24.04-arm actions-312.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-aarch64, another job may be creating this cache.
ubuntu-24.04 actions-311.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
ubuntu-24.04 actions-312.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
windows-2025 actions-312.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--win-64, another job may be creating this cache.
PANDAS_FUTURE_INFER_STRING=0
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
ubuntu-24.04 actions-313.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--linux-64, another job may be creating this cache.
ubuntu-24.04 actions-313.yaml
Failed to save: Unable to reserve cache with key micromamba-environment--linux-64-test-args-4f53cda-root-dcc80ee-bin-d2edc1ba4d7ee2a8dabe8913906c08a42cf169bb65e50fc0d53a37b44e2bdd1e-file-51e02878e993e3dd6975f339272bcdb9fe8c1f2ffa4baf8dd6936408bbe25d4d, another job may be creating this cache.
windows-2025 actions-313.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--win-64, another job may be creating this cache.
macos-13 actions-311.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--osx-64, another job may be creating this cache.
macos-13 actions-312.yaml
Failed to save: Unable to reserve cache with key micromamba-downloads--osx-64, another job may be creating this cache.

Artifacts

Produced during runtime
Name Size Digest
Test results
1.3 MB
sha256:5eaa3c7cab86a3c2292024e95698fa6dea93b6227957045f4196e00ea09d7982