mirror of
https://github.com/hwchase17/langchain
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183 lines
4.9 KiB
Plaintext
183 lines
4.9 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "20deed05",
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"metadata": {},
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"source": [
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"# Unstructured File Loader\n",
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"This notebook covers how to use Unstructured to load files of many types. Unstructured currently supports loading of text files, powerpoints, html, pdfs, images, and more."
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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": "2886982e",
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"metadata": {},
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"outputs": [],
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"source": [
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"# # Install package\n",
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"# !pip install unstructured"
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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": "54d62efd",
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"metadata": {},
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"outputs": [],
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"source": [
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"# # Install other dependencies\n",
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"# # https://github.com/Unstructured-IO/unstructured/blob/main/docs/source/installing.rst\n",
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"# !brew install libmagic"
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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": 3,
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"id": "af6a64f5",
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"metadata": {},
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"outputs": [],
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"source": [
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"# import nltk\n",
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"# nltk.download('punkt')"
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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": 4,
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"id": "79d3e549",
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"metadata": {},
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"outputs": [],
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"source": [
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"from langchain.document_loaders import UnstructuredFileLoader"
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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": 5,
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"id": "2593d1dc",
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"metadata": {},
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"outputs": [],
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"source": [
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"loader = UnstructuredFileLoader(\"../../state_of_the_union.txt\")"
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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": 6,
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"id": "fe34e941",
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"metadata": {},
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"outputs": [],
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"source": [
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"docs = loader.load()"
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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": 7,
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"id": "ee449788",
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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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"'Madam Speaker, Madam Vice President, our First Lady and Second Gentleman. Members of Congress and the Cabinet. Justices of the Supreme Court. My fellow Americans.\\n\\nLast year COVID-19 kept us apart. This year we are finally together again.\\n\\nTonight, we meet as Democrats Republicans and Independents. But most importantly as Americans.\\n\\nWith a duty to one another to the American people to the Constit'"
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]
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},
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"execution_count": 7,
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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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"docs[0].page_content[:400]"
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]
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},
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{
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"cell_type": "markdown",
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"id": "7874d01d",
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"metadata": {},
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"source": [
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"## Retain Elements\n",
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"\n",
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"Under the hood, Unstructured creates different \"elements\" for different chunks of text. By default we combine those together, but you can easily keep that separation by specifying `mode=\"elements\"`."
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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": 8,
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"id": "ff5b616d",
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"metadata": {},
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"outputs": [],
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"source": [
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"loader = UnstructuredFileLoader(\"../../state_of_the_union.txt\", mode=\"elements\")"
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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": 9,
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"id": "feca3b6c",
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"metadata": {},
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"outputs": [],
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"source": [
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"docs = loader.load()"
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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": 12,
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"id": "fec5bbac",
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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='Madam Speaker, Madam Vice President, our First Lady and Second Gentleman. Members of Congress and the Cabinet. Justices of the Supreme Court. My fellow Americans.', lookup_str='', metadata={'source': '../../state_of_the_union.txt'}, lookup_index=0),\n",
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" Document(page_content='Last year COVID-19 kept us apart. This year we are finally together again.', lookup_str='', metadata={'source': '../../state_of_the_union.txt'}, lookup_index=0),\n",
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" Document(page_content='Tonight, we meet as Democrats Republicans and Independents. But most importantly as Americans.', lookup_str='', metadata={'source': '../../state_of_the_union.txt'}, lookup_index=0),\n",
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" Document(page_content='With a duty to one another to the American people to the Constitution.', lookup_str='', metadata={'source': '../../state_of_the_union.txt'}, lookup_index=0),\n",
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" Document(page_content='And with an unwavering resolve that freedom will always triumph over tyranny.', lookup_str='', metadata={'source': '../../state_of_the_union.txt'}, lookup_index=0)]"
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]
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},
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"execution_count": 12,
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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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"docs[:5]"
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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": "8ca8a648",
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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": "3.9.1"
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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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