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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. Wikipedia is the largest and most-read reference work in history.

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Installation and Setup

pip install wikipedia

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Document Loader

See a usage example. 
from langchain_community.document_loaders import WikipediaLoader

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Retriever

See a usage example. 
from langchain.retrievers import WikipediaRetriever
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