MediaWiki XML Dumps contain the content of a wiki (wiki pages with all their revisions), without the site-related data. A XML dump does not create a full backup of the wiki database, the dump does not contain user accounts, images, edit logs, etc.

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Installation and Setup

We need to install several python packages. The mediawiki-utilities supports XML schema 0.11 in unmerged branches. 
pip install -qU git+https://github.com/mediawiki-utilities/python-mwtypes@updates_schema_0.11
The mediawiki-utilities mwxml has a bug, fix PR pending. 
pip install -qU git+https://github.com/gdedrouas/python-mwxml@xml_format_0.11
pip install -qU mwparserfromhell

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Document Loader

See a usage example. 
from langchain_community.document_loaders import MWDumpLoader