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[Proposal] - Add KedroPipelineError and provide better error message for invalid node/pipeline definition #2734

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[Proposal] - Add KedroPipelineError and provide better error message for invalid node/pipeline definition #2734

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67a9fc4
better error message
noklam Jun 27, 2023
e5ab651
Merge branch 'main' into feat/better-error-message-pipeline
noklam Jul 4, 2023
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6 changes: 6 additions & 0 deletions kedro/pipeline/pipeline.py
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Original file line number Diff line number Diff line change
Expand Up @@ -872,6 +872,8 @@ def _validate_transcoded_inputs_outputs(nodes: list[Node]) -> None:

invalid = set()
for dataset_name in all_inputs_outputs:
if not isinstance(dataset_name, str):
raise KedroPipelineError("A BETTER ERROR MESSAGE")
name = _strip_transcoding(dataset_name)
if name != dataset_name and name in all_inputs_outputs:
invalid.add(name)
Expand Down Expand Up @@ -924,3 +926,7 @@ class CircularDependencyError(Exception):
"""

pass


class KedroPipelineError(Exception):
"""Error occurred when loading pipeline and running pipeline."""