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URL

This covers how to load HTML documents from a list of URLs into a document format that we can use downstream.

from langchain.document_loaders import UnstructuredURLLoader

API Reference:

urls = [
    "https://www.understandingwar.org/backgrounder/russian-offensive-campaign-assessment-february-8-2023",
    "https://www.understandingwar.org/backgrounder/russian-offensive-campaign-assessment-february-9-2023",
]

Pass in ssl_verify=False with headers=headers to get past ssl_verification error.

loader = UnstructuredURLLoader(urls=urls)
data = loader.load()

Selenium URL Loader

This covers how to load HTML documents from a list of URLs using the SeleniumURLLoader.

Using selenium allows us to load pages that require JavaScript to render.

Setup​

To use the SeleniumURLLoader, you will need to install selenium and unstructured.

from langchain.document_loaders import SeleniumURLLoader

API Reference:

urls = [
    "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
    "https://goo.gl/maps/NDSHwePEyaHMFGwh8",
]
loader = SeleniumURLLoader(urls=urls)
data = loader.load()

Playwright URL Loader

This covers how to load HTML documents from a list of URLs using the PlaywrightURLLoader.

As in the Selenium case, Playwright allows us to load pages that need JavaScript to render.

Setup​

To use the PlaywrightURLLoader, you will need to install playwright and unstructured. Additionally, you will need to install the Playwright Chromium browser:

# Install playwright
pip install "playwright"
pip install "unstructured"
playwright install
from langchain.document_loaders import PlaywrightURLLoader

API Reference:

urls = [
    "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
    "https://goo.gl/maps/NDSHwePEyaHMFGwh8",
]
loader = PlaywrightURLLoader(urls=urls, remove_selectors=["header", "footer"])
data = loader.load()