uranusjr commented on code in PR #24018:
URL: https://github.com/apache/airflow/pull/24018#discussion_r885113996
##########
airflow/models/mappedoperator.py:
##########
@@ -201,7 +201,7 @@ def _expand(self, **mapped_kwargs: "Mappable") ->
"MappedOperator":
from airflow.operators.empty import EmptyOperator
validate_mapping_kwargs(self.operator_class, "expand", mapped_kwargs)
- prevent_duplicates(self.kwargs, mapped_kwargs, fail_reason="mapping
already partial")
+ prevent_duplicates(self.kwargs, mapped_kwargs, fail_reason="unmappable
or already specified")
Review Comment:
Personally I don’t like putting documentation links in the error message. We
could make this more prominent in the documentation page though, perhaps adding
a section with the error message in the title.
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