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onnx-web/api/onnx_web/chain/source_s3.py

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Python

from io import BytesIO
from logging import getLogger
from typing import Optional
from boto3 import Session
from PIL import Image
from ..params import ImageParams, StageParams
from ..server import ServerContext
from ..worker import WorkerContext
logger = getLogger(__name__)
def source_s3(
_job: WorkerContext,
server: ServerContext,
_stage: StageParams,
_params: ImageParams,
source: Image.Image,
*,
source_key: str,
bucket: str,
endpoint_url: Optional[str] = None,
profile_name: Optional[str] = None,
stage_source: Optional[Image.Image] = None,
**kwargs,
) -> Image.Image:
source = stage_source or source
session = Session(profile_name=profile_name)
s3 = session.client("s3", endpoint_url=endpoint_url)
try:
logger.info("loading image from s3://%s/%s", bucket, source_key)
data = BytesIO()
s3.download_fileobj(bucket, source_key, data)
data.seek(0)
return Image.open(data)
except Exception:
logger.exception("error loading image from S3")