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langchain/langchain/document_loaders/web_base.py

35 lines
1017 B
Python

"""Web base loader class."""
from typing import Any, List
import requests
from langchain.docstore.document import Document
from langchain.document_loaders.base import BaseLoader
class WebBaseLoader(BaseLoader):
"""Loader that uses urllib and beautiful soup to load webpages."""
def __init__(self, web_path: str):
"""Initialize with webpage path."""
self.web_path = web_path
@staticmethod
def _scrape(url: str) -> Any:
from bs4 import BeautifulSoup
html_doc = requests.get(url)
soup = BeautifulSoup(html_doc.text, "html.parser")
return soup
def scrape(self) -> Any:
"""Scrape data from webpage and return it in BeautifulSoup format."""
return self._scrape(self.web_path)
def load(self) -> List[Document]:
"""Load data into document objects."""
soup = self.scrape()
text = soup.get_text()
metadata = {"source": self.web_path}
return [Document(page_content=text, metadata=metadata)]