proivide >= 1 agg

rapidsai · Aug 11, 2024 · fada974 · fada974
1 parent 68d8007
commit fada974
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/python/cudf/cudf/core/groupby/groupby.py b/python/cudf/cudf/core/groupby/groupby.py
@@ -1298,6 +1298,8 @@ def _normalize_aggs(
             column_names, aggs_per_column = kwargs.keys(), kwargs.values()
             columns = tuple(self.obj._data[x[1][0]] for x in kwargs.items())
             aggs_per_column = [x[1] for x in kwargs.values()]
+        else:
+            raise TypeError("Must provide at least one aggregation function.")
 
         # is_list_like performs type narrowing but type-checkers don't
         # know it. One could add a TypeGuard annotation to