MediaWikiDump

MediaWiki XML Dumps 包含了维基的内容（包括其所有修订版本的维基页面），但不包含与站点相关的数据。XML 倾倒文件并不是维基数据库的完整备份，它不包含用户帐户、图像、编辑日志等内容。

本文档介绍了如何将 MediaWiki XML 倾倒文件加载到我们可以在后续处理中使用的文档格式中。

它使用 mediawiki-utilities 的 mwxml 进行倾倒，并使用 earwig 的 mwparserfromhell 解析 MediaWiki 的维基代码。

可以使用 dumpBackup.php 或维基的 Special:Statistics 页面获取倾倒文件。

#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
#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

from langchain.document_loaders import MWDumpLoader

loader = MWDumpLoader("example_data/testmw_pages_current.xml", encoding="utf8")
documents = loader.load()
print (f'You have {len(documents)} document(s) in your data ')

You have 177 document(s) in your data

documents[:5]

[Document(page_content='\t\n\t\n\tArtist\n\tReleased\n\tRecorded\n\tLength\n\tLabel\n\tProducer', metadata={'source': 'Album'}), Document(page_content='{| class="article-table plainlinks" style="width:100%;"\n|- style="font-size:18px;"\n! style="padding:0px;" | Template documentation\n|-\n| Note: portions of the template sample may not be visible without values provided.\n|-\n| View or edit this documentation. (About template documentation)\n|-\n| Editors can experiment in this template\'s [ sandbox] and [ test case] pages.\n|}Category:Documentation templates', metadata={'source': 'Documentation'}), Document(page_content='Description\nThis template is used to insert descriptions on template pages.\n\nSyntax\nAdd <noinclude></noinclude> at the end of the template page.\n\nAdd <noinclude></noinclude> to transclude an alternative page from the /doc subpage.\n\nUsage\n\nOn the Template page\nThis is the normal format when used:\n\nTEMPLATE CODE\n<includeonly>Any categories to be inserted into articles by the template</includeonly>\n<noinclude>{{Documentation}}</noinclude>\n\nIf your template is not a completed div or table, you may need to close the tags just before {{Documentation}} is inserted (within the noinclude tags).\n\nA line break right before {{Documentation}} can also be useful as it helps prevent the documentation template "running into" previous code.\n\nOn the documentation page\nThe documentation page is usually located on the /doc subpage for a template, but a different page can be specified with the first parameter of the template (see Syntax).\n\nNormally, you will want to write something like the following on the documentation page:\n\n==Description==\nThis template is used to do something.\n\n==Syntax==\nType <code>{{t|templatename}}</code> somewhere.\n\n==Samples==\n<code><nowiki>{{templatename|input}}</nowiki></code> \n\nresults in...\n\n{{templatename|input}}\n\n<includeonly>Any categories for the template itself</includeonly>\n<noinclude>[[Category:Template documentation]]</noinclude>\n\nUse any or all of the above description/syntax/sample output sections. You may also want to add "see also" or other sections.\n\nNote that the above example also uses the Template:T template.\n\nCategory:Documentation templatesCategory:Template documentation', metadata={'source': 'Documentation/doc'}), Document(page_content='Description\nA template link with a variable number of parameters (0-20).\n\nSyntax\n \n\nSource\nImproved version not needing t/piece subtemplate developed on Templates wiki see the list of authors. Copied here via CC-By-SA 3.0 license.\n\nExample\n\nCategory:General wiki templates\nCategory:Template documentation', metadata={'source': 'T/doc'}), Document(page_content='\t\n\t\t \n\t\n\t\t Aliases\n\t Relatives\n\t Affiliation\n Occupation\n \n Biographical information\n Marital status\n \tDate of birth\n Place of birth\n Date of death\n Place of death\n \n Physical description\n Species\n Gender\n Height\n Weight\n Eye color\n\t\n Appearances\n Portrayed by\n Appears in\n Debut\n ', metadata={'source': 'Character'})]