.. module:: optuna.exceptions

optuna.exceptions

The :mod:~optuna.exceptions module defines Optuna-specific exceptions deriving from a base :class:~optuna.exceptions.OptunaError class. Of special importance for library users is the :class:~optuna.exceptions.TrialPruned exception to be raised if :func:optuna.trial.Trial.should_prune returns True for a trial that should be pruned.

.. autosummary:: :toctree: generated/ :nosignatures:

OptunaError TrialPruned CLIUsageError StorageInternalError DuplicatedStudyError UpdateFinishedTrialError