Python script to get random article titles from wikipedia

getRandomArticle.py

#!/usr/bin/env python
"""
Print some random article titles.

Usage: getRandomArticle.py [NUM]
NUM is the number of articles to get. Optional, default 20
"""
import sys
import requests


BASE_URL = "https://en.wikipedia.org/w/api.php"


try:
    if len(sys.argv) == 1:
        num = 20
    elif len(sys.argv) == 2:
        num = int(sys.argv[1])
    else:
        print("Argument Error: Unexpected number of arguments")
        sys.exit(1)
    params = {
        "action": "query",
        "format": "json",
        "list": "random",
        "rawcontinue": 1,
        "rnnamespace": 0,
        "rnlimit": num,
    }
    r = requests.get(BASE_URL, params=params)
    if not r.ok:
        print(f"Http error: {r.url} failed with response {r.status_code}")
        sys.exit(2)
    if "MediaWiki-API-Error" in r.headers:
        print(f"API error: {r.headers['MediaWiki-API-Error']}")
        sys.exit(3)

    print(*map(lambda rand: rand["title"],
          r.json()["query"]["random"]), sep="\n")
    sys.exit(0)
except Exception as e:
    print("Error:", e)
    sys.exit(3)

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