You can turn selected Wikipedia pages into a local, read-only reference site with Python: fetch the pages through Wikimedia’s Action API, save the content and its source details, then render it with a small web application. That is different from building an editable wiki with user accounts, revisions, and collaboration; if you need those features, use MediaWiki and let Python handle automation or content movement.
Choose between a personal reference and an editable wiki
For a personal collection of selected articles, a Python site is a straightforward way to keep pages together, add an index, and link readers back to Wikipedia. Treat it as a read-only snapshot unless you deliberately build editing, user management, and revision-history features.
If native wiki editing and collaboration are the goal, install and configure MediaWiki rather than recreating a wiki engine in Python. Python can still assist with importing or maintaining content. MediaWiki describes its Action API as available to third-party developers, extension developers, and wiki administrators in its API Tutorial.
Use the Action API for a small collection
For English Wikipedia, the Action API endpoint is https://en.wikipedia.org/w/api.php. MediaWiki’s API accepts GET or POST requests and recommends JSON output. Use action=parse when you want rendered page content, or action=query with an appropriate query module when you need to search or retrieve page properties. The official Parsing wikitext documentation includes a Python example using requests.
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Start with a few pages
Install the Python requests package if it is not already available, then try a single page. This example asks the API to parse the page “Python (programming language)” and prints the returned HTML:
import requests
API_URL = "https://en.wikipedia.org/w/api.php"
with requests.Session() as session:
response = session.get(
API_URL,
params={
"action": "parse",
"page": "Python (programming language)",
"format": "json",
},
headers={
"User-Agent": "PersonalWiki/1.0 (contact: you@example.com)"
},
timeout=30,
)
response.raise_for_status()
data = response.json()
if "error" in data:
raise RuntimeError(data["error"])
html = data["parse"]["text"]["*"]
print(html)Replace the example User-Agent with a descriptive script name and a real operator contact method. The example demonstrates the request shape, not a complete site: check the current module documentation for exact parameters and response fields, and handle network, HTTP, and API errors before relying on the result.
Save a useful, traceable snapshot
For each saved page, keep only what your local project needs. Useful fields include the page title, its Wikipedia source URL, a fetched revision identifier or timestamp when available, the rendered text or HTML, and the applicable attribution and license details. Keeping source and revision information alongside content makes it easier to show where a page came from and to refresh it later.
Build the local site
Use the Python web framework and storage approach that fit your project; Wikimedia’s API documentation does not prescribe a particular framework, database, or deployment stack. A basic site can have one route per saved article and an index that links to those routes. Preserve internal references where practical, and provide clear links from each local page to its Wikipedia source rather than implying that the local copy is the live article.
Decide when to use bulk downloads instead
The API is suitable for a modest, selected set of pages. If the project grows into a large offline collection, Wikimedia provides bulk downloads for offline reading and research. Wikimedia’s Developer portal points to those resources, and its API etiquette guidance says bulk downloads are faster for large-scale work than repeatedly requesting content through the Action API.
The trade-off is practical: a small API-backed project can fetch and cache a limited set of articles, while a dump means processing and storing a much larger, dated collection. Choose based on how many pages you need and whether a selected library or broad snapshot is the actual goal.
Make API requests responsibly
- Identify your client: send a meaningful User-Agent that names the script and provides an operator contact method.
- Reuse results: cache responses you can reuse and batch page titles when the relevant API modules support it.
- Limit concurrency: make requests serially when practical. Wikimedia’s rate-limit guidance, updated in 2026 and subject to change, recommends no more than three concurrent requests and says to honor a
Retry-Afterresponse. Check the current limits guidance before deploying a crawler. - Plan for scale: for high-volume or commercial use, consider Wikimedia’s documented bulk-data or Enterprise access paths rather than increasing ad hoc API traffic. The small educational workflow described here does not require paid access.
Attribute and license copied material
Wikipedia content is reusable under applicable license terms, but do not assume a single license covers every page, language edition, or media file. Check the license displayed for each article and for each image or other file you include. Many Wikipedia language editions use CC BY-SA 4.0, but exceptions and file-level differences exist.
Follow the applicable license’s attribution requirements, retain source attribution, link to the license where required, and identify modifications. Share-alike terms may require adaptations to use the same or a compatible license. Commons images are not automatically covered by an article’s license: inspect the individual file page and follow its terms. Wikimedia’s Terms of Use and Commons reuse guidance provide starting points; the license shown for the specific content remains important.
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