mirror of
https://github.com/Mintplex-Labs/langchain-python.git
synced 2026-07-19 13:26:32 -04:00
Matt Robinson
bf3f554357
### Submit Multiple Files to the Unstructured API
Enables batching multiple files into a single Unstructured API requests.
Support for requests with multiple files was added to both
`UnstructuredAPIFileLoader` and `UnstructuredAPIFileIOLoader`. Note that
if you submit multiple files in "single" mode, the result will be
concatenated into a single document. We recommend using this feature in
"elements" mode.
### Testing
The following should load both documents, using two of the example docs
from the integration tests folder.
```python
from langchain.document_loaders import UnstructuredAPIFileLoader
file_paths = ["examples/layout-parser-paper.pdf", "examples/whatsapp_chat.txt"]
loader = UnstructuredAPIFileLoader(
file_paths=file_paths,
api_key="FAKE_API_KEY",
strategy="fast",
mode="elements",
)
docs = loader.load()
```
103 lines
3.7 KiB
Python
103 lines
3.7 KiB
Python
"""Loader that loads word documents."""
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import os
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import tempfile
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from abc import ABC
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from typing import List
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from urllib.parse import urlparse
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import requests
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from langchain.docstore.document import Document
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from langchain.document_loaders.base import BaseLoader
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from langchain.document_loaders.unstructured import UnstructuredFileLoader
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class Docx2txtLoader(BaseLoader, ABC):
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"""Loads a DOCX with docx2txt and chunks at character level.
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Defaults to check for local file, but if the file is a web path, it will download it
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to a temporary file, and use that, then clean up the temporary file after completion
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"""
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def __init__(self, file_path: str):
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"""Initialize with file path."""
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self.file_path = file_path
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if "~" in self.file_path:
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self.file_path = os.path.expanduser(self.file_path)
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# If the file is a web path, download it to a temporary file, and use that
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if not os.path.isfile(self.file_path) and self._is_valid_url(self.file_path):
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r = requests.get(self.file_path)
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if r.status_code != 200:
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raise ValueError(
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"Check the url of your file; returned status code %s"
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% r.status_code
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)
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self.web_path = self.file_path
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self.temp_file = tempfile.NamedTemporaryFile()
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self.temp_file.write(r.content)
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self.file_path = self.temp_file.name
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elif not os.path.isfile(self.file_path):
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raise ValueError("File path %s is not a valid file or url" % self.file_path)
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def __del__(self) -> None:
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if hasattr(self, "temp_file"):
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self.temp_file.close()
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def load(self) -> List[Document]:
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"""Load given path as single page."""
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import docx2txt
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return [
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Document(
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page_content=docx2txt.process(self.file_path),
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metadata={"source": self.file_path},
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)
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]
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@staticmethod
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def _is_valid_url(url: str) -> bool:
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"""Check if the url is valid."""
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parsed = urlparse(url)
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return bool(parsed.netloc) and bool(parsed.scheme)
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class UnstructuredWordDocumentLoader(UnstructuredFileLoader):
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"""Loader that uses unstructured to load word documents."""
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def _get_elements(self) -> List:
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from unstructured.__version__ import __version__ as __unstructured_version__
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from unstructured.file_utils.filetype import FileType, detect_filetype
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unstructured_version = tuple(
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[int(x) for x in __unstructured_version__.split(".")]
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)
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# NOTE(MthwRobinson) - magic will raise an import error if the libmagic
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# system dependency isn't installed. If it's not installed, we'll just
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# check the file extension
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try:
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import magic # noqa: F401
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is_doc = detect_filetype(self.file_path) == FileType.DOC
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except ImportError:
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_, extension = os.path.splitext(str(self.file_path))
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is_doc = extension == ".doc"
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if is_doc and unstructured_version < (0, 4, 11):
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raise ValueError(
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f"You are on unstructured version {__unstructured_version__}. "
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"Partitioning .doc files is only supported in unstructured>=0.4.11. "
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"Please upgrade the unstructured package and try again."
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)
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if is_doc:
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from unstructured.partition.doc import partition_doc
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return partition_doc(filename=self.file_path, **self.unstructured_kwargs)
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else:
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from unstructured.partition.docx import partition_docx
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return partition_docx(filename=self.file_path, **self.unstructured_kwargs)
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