download_prefix_from_url

brainsets.utils.s3_utils.download_prefix_from_url(s3_url, target_dir)

Download all files matching an S3 URL prefix pattern.

Parameters:

• s3_url (str) – S3 URL prefix pattern (e.g., ‘s3://bucket/prefix’)

• target_dir (Path) – Local directory to download files to

Return type:

list[Path]

Returns:

List of downloaded file paths

Raises:

• ValueError – If URL is not a valid S3 URL

• RuntimeError – If download fails

• ImportError – If boto3/botocore is not installed.