Update packages/ref-core/src/ref_core/constraints.py

Co-authored-by: Mika Pflüger <mika.pflueger@climate-resource.com>
CMIP-REF · Nov 28, 2024 · c83750a · c83750a
1 parent 0f8809e
commit c83750a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/packages/ref-core/src/ref_core/constraints.py b/packages/ref-core/src/ref_core/constraints.py
@@ -51,7 +51,8 @@ def apply(self, group: pd.DataFrame, data_catalog: pd.DataFrame) -> pd.DataFrame
         Perform an operation on the group of datasets.
 
         A new group of datasets should be returned if modifications are required,
-        and the input group should not be modified.
+        and the input group should not be modified. If no modifications are required,
+        return the input group unchanged.
         If this operation fails, a ConstraintNotSatisfied exception should be raised.
 
         Parameters