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fix: load .NET assemblies when running on .NET 9+ #174

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Merged
arjenkroezen-msft merged 1 commit into from
Sep 24, 2026
Merged

fix: load .NET assemblies when running on .NET 9+ #174

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2 changes: 1 addition & 1 deletion .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ jobs:
strategy:
matrix:
os: ['ubuntu-latest', 'windows-latest']
python-version: ['3.9', '3.10', '3.11', '3.12', '3.x']
python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
dotnet-version: ['8.0.x']
dist: [whl, sdist]
uses: ./.github/workflows/e2e.yml
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6 changes: 4 additions & 2 deletions src/data_factory_testing_framework/_pythonnet/__init__.py
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Expand Up @@ -10,9 +10,11 @@
def load_dotnet_assemblies() -> None:
# Load the .NET assemblies
for dll in (Path(__file__).parent / "bin").glob("**/*.dll"):
dll = os.path.abspath(dll)
# Pass the path without the ".dll" suffix so pythonnet probes and loads "<path>.dll" directly.
# With the suffix, pythonnet 3.0.x on .NET 9+ parses the path as an assembly name and fails to load it.
assembly_path = os.path.splitext(os.path.abspath(dll))[0]
try:
clr.AddReference(dll)
clr.AddReference(assembly_path)
except Exception:
pass

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