def _head_object()

in iopath/common/s3.py [0:0]

• 12 lines of code
• 4 McCabe index (conditional complexity)

    def _head_object(self, path: str) -> Optional[Dict]:
        bucket, s3_path = self._parse_uri(path)
        client = self._get_client(bucket)

        try:
            # Raises exception if not exists, else it exists.
            response = client.head_object(Bucket=bucket, Key=s3_path)
            return response
        except botocore.exceptions.ClientError as e:
            if e.response["Error"]["Message"] == "Bad Request":
                raise OSError(
                    f"Error in checking s3 path {path} - " f"{type(e).__name__}: {e}"
                ) from e
            return None