26453d58671e01410b22287a723f76d6bb98803f,optuna/storages/in_memory.py,InMemoryStorage,get_all_study_summaries,#InMemoryStorage#,135

Before Change

    def get_all_study_summaries(self):
        // type: () -> List[StudySummary]

        best_trial = None
        if any(t for t in self.trials if t.state == TrialState.COMPLETE):
            best_trial = self.get_best_trial(IN_MEMORY_STORAGE_STUDY_ID)

        datetime_start = None
        if len(self.trials) > 0:
            datetime_start = min([t.datetime_start for t in self.trials])

        return [
            StudySummary(
                study_name=self.study_name,
                direction=self.direction,
                best_trial=best_trial,
                user_attrs=copy.deepcopy(self.study_user_attrs),
                system_attrs=copy.deepcopy(self.study_system_attrs),
                n_trials=len(self.trials),
                datetime_start=datetime_start,
                study_id=IN_MEMORY_STORAGE_STUDY_ID,
            )
        ]

    def create_new_trial(self, study_id, template_trial=None):
        // type: (int, Optional[FrozenTrial]) -> int

After Change

    def get_all_study_summaries(self):
        // type: () -> List[StudySummary]

        return [self._build_study_summary(study_id) for study_id in self._study_name.keys()]

    def _build_study_summary(self, study_id: int) -> StudySummary:
        best_trial_id = self._best_trial_id[study_id]
        return StudySummary(

Instances