mirror of https://github.com/hwchase17/langchain
feat: Add `UnstructuredXMLLoader` for `.xml` files (#5955)
# Unstructured XML Loader Adds an `UnstructuredXMLLoader` class for .xml files. Works with unstructured>=0.6.7. A plain text representation of the text with the XML tags will be available under the `page_content` attribute in the doc. ### Testing ```python from langchain.document_loaders import UnstructuredXMLLoader loader = UnstructuredXMLLoader( "example_data/factbook.xml", ) docs = loader.load() ``` ## Who can review? @hwchase17 @eyurtsevpull/6001/head
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<?xml version="1.0" encoding="UTF-8"?>
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<factbook>
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<country>
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<name>United States</name>
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<capital>Washington, DC</capital>
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<leader>Joe Biden</leader>
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<sport>Baseball</sport>
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</country>
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<country>
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<name>Canada</name>
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<capital>Ottawa</capital>
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<leader>Justin Trudeau</leader>
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<sport>Hockey</sport>
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</country>
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<country>
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<name>France</name>
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<capital>Paris</capital>
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<leader>Emmanuel Macron</leader>
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<sport>Soccer</sport>
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</country>
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<country>
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<name>Trinidad & Tobado</name>
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<capital>Port of Spain</capital>
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<leader>Keith Rowley</leader>
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<sport>Track & Field</sport>
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</country>
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</factbook>
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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "22a849cc",
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"metadata": {},
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"source": [
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"# XML\n",
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"\n",
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"The `UnstructuredXMLLoader` is used to load `XML` files. The loader works with `.xml` files. The page content will be the text extracted from the XML tags."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"id": "e6616e3a",
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"metadata": {},
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"outputs": [],
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"source": [
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"from langchain.document_loaders import UnstructuredXMLLoader"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "a654e4d9",
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"metadata": {},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"Document(page_content='United States\\n\\nWashington, DC\\n\\nJoe Biden\\n\\nBaseball\\n\\nCanada\\n\\nOttawa\\n\\nJustin Trudeau\\n\\nHockey\\n\\nFrance\\n\\nParis\\n\\nEmmanuel Macron\\n\\nSoccer\\n\\nTrinidad & Tobado\\n\\nPort of Spain\\n\\nKeith Rowley\\n\\nTrack & Field', metadata={'source': 'example_data/factbook.xml'})"
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]
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},
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"execution_count": 2,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"loader = UnstructuredXMLLoader(\n",
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" \"example_data/factbook.xml\",\n",
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")\n",
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"docs = loader.load()\n",
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"docs[0]"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "a54342bb",
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.15"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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"""Loader that loads Microsoft Excel files."""
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from typing import Any, List
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from langchain.document_loaders.unstructured import (
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UnstructuredFileLoader,
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validate_unstructured_version,
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)
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class UnstructuredXMLLoader(UnstructuredFileLoader):
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"""Loader that uses unstructured to load XML files."""
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def __init__(
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self, file_path: str, mode: str = "single", **unstructured_kwargs: Any
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):
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validate_unstructured_version(min_unstructured_version="0.6.7")
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super().__init__(file_path=file_path, mode=mode, **unstructured_kwargs)
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def _get_elements(self) -> List:
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from unstructured.partition.xml import partition_xml
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return partition_xml(filename=self.file_path, **self.unstructured_kwargs)
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import os
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from pathlib import Path
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from langchain.document_loaders import UnstructuredXMLLoader
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EXAMPLE_DIRECTORY = file_path = Path(__file__).parent.parent / "examples"
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def test_unstructured_xml_loader() -> None:
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"""Test unstructured loader."""
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file_path = os.path.join(EXAMPLE_DIRECTORY, "factbook.xml")
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loader = UnstructuredXMLLoader(str(file_path))
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docs = loader.load()
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assert len(docs) == 1
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<?xml version="1.0" encoding="UTF-8"?>
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<factbook>
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<country>
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<name>United States</name>
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<capital>Washington, DC</capital>
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<leader>Joe Biden</leader>
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<sport>Baseball</sport>
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</country>
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<country>
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<name>Canada</name>
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<capital>Ottawa</capital>
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<leader>Justin Trudeau</leader>
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<sport>Hockey</sport>
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</country>
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<country>
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<name>France</name>
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<capital>Paris</capital>
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<leader>Emmanuel Macron</leader>
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<sport>Soccer</sport>
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</country>
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<country>
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<name>Trinidad & Tobado</name>
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<capital>Port of Spain</capital>
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<leader>Keith Rowley</leader>
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<sport>Track & Field</sport>
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</country>
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</factbook>
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