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Build an RSS feed from markdown blog posts in Python

Scans a folder of markdown files, extracts titles, dates, and excerpts, and generates a valid RSS 2.0 XML feed.

import re
from pathlib import Path
from xml.etree.ElementTree import Element, SubElement, tostring
from datetime import datetime, timezone
from xml.dom import minidom

def build_rss(blog_dir, site_url="https://example.com"):
    feed = Element("rss", version="2.0")
    channel = SubElement(feed, "channel")
    SubElem…

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