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chore: Pin Python version to 3.13 as PythonNet doesn't yet support 3.14 #271

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Merged
adamreeve merged 2 commits into from
Feb 23, 2026
Merged

chore: Pin Python version to 3.13 as PythonNet doesn't yet support 3.14 #271

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df46278
Throw on Python version mismatch in CI
adamreeve Feb 23, 2026
7fee895
Pin Python to 3.13 for unit tests
adamreeve Feb 23, 2026
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2 changes: 1 addition & 1 deletion .github/workflows/rc.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ jobs:
- name: Setup Python
uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: 3
python-version: 3.13 # PythonNet isn't compatible with 3.14 yet (https://github.com/pythonnet/pythonnet/issues/2610)
- name: Download
uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
with:
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2 changes: 1 addition & 1 deletion .github/workflows/test.yaml
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Expand Up @@ -74,7 +74,7 @@ jobs:
- name: Setup Python
uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: 3
python-version: 3.13 # PythonNet isn't compatible with 3.14 yet (https://github.com/pythonnet/pythonnet/issues/2610)
- name: Checkout
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Build
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6 changes: 3 additions & 3 deletions test/Apache.Arrow.Tests/CDataInterfacePythonTests.cs
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Expand Up @@ -79,16 +79,16 @@ public CDataSchemaPythonTest(PythonNet pythonNet)
{
if (!pythonNet.Initialized)
{
Skip.If(pythonNet.VersionMismatch, "VM has incompatible version of Python installed; skipping C Data Interface tests.");
var errorReason = pythonNet.VersionMismatch ? "Python version is incompatible with PythonNet" : "PYTHONNET_PYDLL not set";

bool inCIJob = Environment.GetEnvironmentVariable("GITHUB_ACTIONS") == "true";
bool inVerificationJob = Environment.GetEnvironmentVariable("TEST_CSHARP") == "1";

// Skip these tests if this is not in CI or is a verification job and PythonNet couldn't be initialized
Skip.If(inVerificationJob || !inCIJob, "PYTHONNET_PYDLL not set; skipping C Data Interface tests.");
Skip.If(inVerificationJob || !inCIJob, $"{errorReason}; skipping C Data Interface tests.");

// Otherwise throw
throw new Exception("PYTHONNET_PYDLL not set; cannot run C Data Interface tests.");
throw new Exception($"{errorReason}; cannot run C Data Interface tests.");
}
}

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