optuna_dashboard.artifact.boto3.Boto3Backend

class optuna_dashboard.artifact.boto3.Boto3Backend(bucket_name, client=None, *, avoid_buf_copy=False)

An artifact backend for S3.

Warning

This class is deprecated. Please use optuna.artifacts.Boto3ArtifactStore instead.

Example

import optuna
from optuna_dashboard.artifact import upload_artifact
from optuna_dashboard.artifact.boto3 import Boto3Backend

artifact_backend = Boto3Backend("my-bucket")

def objective(trial: optuna.Trial) -> float:
    ... = trial.suggest_float("x", -10, 10)
    file_path = generate_example_png(...)
    upload_artifact(artifact_backend, trial, file_path)
    return ...

Methods

open(artifact_id)
remove(artifact_id)
write(artifact_id, content_body)

Parameters:

• bucket_name (str) –

• client (Optional[S3Client]) –

• avoid_buf_copy (bool) –