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#

# Source code for langchain.document_loaders.s3_file

    """Loading logic for loading documents from an s3 file."""
    import os
    import tempfile
    from typing import List

    from langchain.docstore.document import Document
    from langchain.document_loaders.base import BaseLoader
    from langchain.document_loaders.unstructured import UnstructuredFileLoader

    class S3FileLoader(BaseLoader):
        """Loading logic for loading documents from s3."""

        def __init__(self, bucket: str, key: str):
            """Initialize with bucket and key name."""
            self.bucket = bucket
            self.key = key

        def load(self) -> List[Document]:
            """Load documents."""
            try:
                import boto3
            except ImportError:
                raise ValueError(
                    "Could not import boto3 python package. "
                    "Please install it with `pip install boto3`."
                )
            s3 = boto3.client("s3")
            with tempfile.TemporaryDirectory() as temp_dir:
                file_path = f"{temp_dir}/{self.key}"
                os.makedirs(os.path.dirname(file_path), exist_ok=True)
                s3.download_file(self.bucket, self.key, file_path)
                loader = UnstructuredFileLoader(file_path)
                return loader.load()