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Show traceback from output.json on BackendUnavailable #219

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Show traceback from output.json on BackendUnavailable #219

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c731209
Show traceback from output.json on BackendUnavailable
bbhtt Jun 7, 2025
757e620
Merge branch 'main' into bbhtt/show-traceback-outputjson
pradyunsg Jul 20, 2025
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7 changes: 5 additions & 2 deletions src/pyproject_hooks/_impl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,8 +53,11 @@ def __init__(
# Preserving arg order for the sake of API backward compatibility.
self.backend_name = backend_name
self.backend_path = backend_path
self.traceback = traceback
super().__init__(message or "Error while importing backend")
self.traceback = traceback or ""
super().__init__(
f"{message or 'Error while importing backend'}"
+ (f"\n\nTraceback:\n{self.traceback}" if self.traceback else "")
)


class HookMissing(Exception):
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