Wikipedia
Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system called MediaWiki.
Wikipediais the largest and most-read reference work in history.
安装与设置
pip install wikipedia
文档加载器
查看一个 使用示例。
from langchain_community.document_loaders import WikipediaLoader
API 参考：WikipediaLoader
检索器
查看一个 使用示例。
from langchain.retrievers import WikipediaRetriever
API 参考：WikipediaRetriever