fix: functions push producing empty python_bundle.sources on Windows#259
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Cedric / ViaDézo1er (viadezo1er) merged 1 commit intoJul 7, 2026
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Path::canonicalize emits \\?\ verbatim paths that the Python runner can't reconcile against a clean cwd, so every source was filtered out. dunce::canonicalize to strip the prefix, with a matching guard in the Python runner
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Cedric / ViaDézo1er (viadezo1er)
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Abhijeet Prasad (AbhiPrasad) and
Parker Henderson (parkerhendo)
Abhijeet Prasad (AbhiPrasad)
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Jul 7, 2026
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Path::canonicalize emits \?\ verbatim paths that the Python runner
can't reconcile against a clean cwd, so every source was filtered out.
dunce::canonicalize to strip the prefix, with a matching guard in
the Python runner
After running
bt functions push .\answer_relevancy.py -p "Windows bt function push issue" --language python --runner .\.venv\Scripts\python.exe --requirements requirements.txt --if-exists replace -yon Windows:(answer_relevancy hardcodes the project so it ignored the -p flag)
https://linear.app/braintrustdata/issue/SDK-9/bt-functions-push-fails-on-windows-with-empty-python-bundlesources