Dec 9, 2024 · Dec 7, 2024
diff --git a/optuna/study/_dataframe.py b/optuna/study/_dataframe.py
 import collections
 from typing import Any
 from typing import DefaultDict
 from typing import Set

 import optuna
 from optuna._imports import try_import
    # column_agg is an aggregator of column names.
    # Keys of column agg are attributes of `FrozenTrial` such as 'trial_id' and 'params'.
    # Values are dataframe columns such as ('trial_id', '') and ('params', 'n_layers').
    column_agg: DefaultDict[str,Set] = collections.defaultdict(set)
    column_agg: DefaultDict[str,set] = collections.defaultdict(set)
    non_nested_attr = ""

    metric_names = study.metric_names
Original file line number	Diff line number	Diff line change
Expand Up		@@ -3,7 +3,6 @@
		import collections
		from typing import Any
		from typing import DefaultDict
		from typing import Set

		import optuna
		from optuna._imports import try_import
Expand DownExpand Up		@@ -36,7 +35,7 @@ def _create_records_and_aggregate_column(
		# column_agg is an aggregator of column names.
		# Keys of column agg are attributes of `FrozenTrial` such as 'trial_id' and 'params'.
		# Values are dataframe columns such as ('trial_id', '') and ('params', 'n_layers').
		column_agg: DefaultDict[str,Set] = collections.defaultdict(set)
		column_agg: DefaultDict[str,set] = collections.defaultdict(set)
		non_nested_attr = ""

		metric_names = study.metric_names
Expand Down