How to export the entire wikipedia to a plain text file?
Exporting the entire Wikipedia to a plain text file is a technically demanding but feasible task, primarily achieved through the use of official Wikimedia data dumps and specialized parsing tools. The process begins by acquiring the raw database dump from Wikimedia's download service at dumps.wikimedia.org. These dumps are provided in XML format, with the file `enwiki-latest-pages-articles.xml.bz2` being the standard dataset containing the current revisions of all articles for the English Wikipedia. This multi-gigabyte compressed file is the definitive source, but it contains extensive metadata, wiki markup, and non-article namespace data, making direct use as "plain text" impractical. The core challenge, therefore, is not merely downloading the data but transforming this structured XML dump into a clean, text-only corpus.
The essential technical step is parsing the XML to extract and convert the wiki markup from each article page into plain text. This requires a dedicated tool like `WikiExtractor`, a Python script from the `wikiextractor` package, or the `mwparserfromhell` library. These tools are designed to process the dump's complex structure, identifying individual pages, stripping out the MediaWiki markup (like links, templates, citations, and formatting tags), and outputting the raw article text. A typical command-line approach using `WikiExtractor` would involve decompressing the dump and piping it to the script, which can output text files organized into directories. The process is computationally intensive and time-consuming, potentially requiring hours of processing time and significant disk space for the resulting text output, which can be hundreds of gigabytes in size.
Critical considerations for this operation include scope, fidelity, and legality. You must decide whether to include only the main article namespace or also other namespaces like talk pages, which will drastically affect the output's size and character. The conversion from wiki markup to plain text is inherently lossy; complex templates, mathematical formulae, and infobox data will not be cleanly preserved, resulting in a corpus suitable for linguistic analysis or search indexing but not for structured data recovery. Legally, the text content of Wikipedia is available under the Creative Commons Attribution-ShareAlike license, but the database dumps themselves are offered as a service, and bulk downloading should be performed considerately, ideally via torrents or mirror sites as recommended by Wikimedia to reduce server load.
Ultimately, the successful creation of a Wikipedia plain text file is a pipeline: obtaining the correct dump, using a robust parser like `WikiExtractor` to clean the markup, and managing the substantial storage and processing requirements. The output serves specialized purposes in natural language processing and research, but it is not a user-friendly or complete representation of Wikipedia's richly linked and referenced knowledge base. For most practical applications, using the live website or the provided XML dumps directly with tools that understand the markup is far more functional than a monolithic plain text file.
References
- Stanford HAI, "AI Index Report" https://aiindex.stanford.edu/report/
- OECD AI Policy Observatory https://oecd.ai/