OptunaSolver currently accesses self._study._storage.set_trial_values etc. in tell(), which is private. The function set_trial_values is changed to set_trial_state_and_values in newer versions of Optuna, and those lines are also affected. We propose to use self._study.tell() instead of directly accessing self._study._storage.set_trial_values, and also make corresponding changes to ask().
Description
In OptunaSolver.ask(), replace call to self._create_new_trial() by self._study.ask().
In OptunaSolver.tell(), replace calls to self._study.sampler.after_trial(), self._study._storage.set_trial_values() and self._study._storage.set_trial_state() by self._study.tell().
Remove OptunaSolver._create_new_trial(), which will be unused.
(Handle DistributionNotFound exception in OptunaSolverFactory.specification(), which occurs when kurobako-py is not installed via pip. This was necessary for me to test this change in my local environment.)
Motivation
OptunaSolvercurrently accessesself._study._storage.set_trial_valuesetc. intell(), which is private. The functionset_trial_valuesis changed toset_trial_state_and_valuesin newer versions of Optuna, and those lines are also affected. We propose to useself._study.tell()instead of directly accessingself._study._storage.set_trial_values, and also make corresponding changes toask().Description
OptunaSolver.ask(), replace call toself._create_new_trial()byself._study.ask().OptunaSolver.tell(), replace calls toself._study.sampler.after_trial(),self._study._storage.set_trial_values()andself._study._storage.set_trial_state()byself._study.tell().OptunaSolver._create_new_trial(), which will be unused.DistributionNotFoundexception inOptunaSolverFactory.specification(), which occurs when kurobako-py is not installed via pip. This was necessary for me to test this change in my local environment.)