While I can see the logic behind that, what you are giving up is proper credential support (profile, env, instance, pod, etc) and a decent built in retry/except

While I can see the logic behind that, what you are giving up is proper credential support (profile, env, instance, pod, etc) and a decent built in retry/exception policy. Using boto3 the entire library becomes something like: s3_client = boto3.client("s3") class S3VFS: def get_range(self, from_, to_): return s3_client.get_object(..., Range=f'bytes={from_}-{to_}')['Body'].read() with apsw.Connection(..., vfs=S3VFS()) That's drastically simpler, and safer to include from a library consumer point of view.