Youtube Playlist to Podcast

playlist.py

# /// script
# requires-python = ">=3.10"
# dependencies = [
#     "yt-dlp>0.4.0",
#     "feedendum",
# ]
# ///
import argparse
import mimetypes
from datetime import datetime
from pathlib import Path

import feedendum
import yt_dlp


def main(url, fout):
    ydl_opts = {
        "format": "m4a/bestaudio/best",
        "restrictfilenames": True,
        "listsubtitles": False,
        "outtmpl": {"default": "%(id)s.%(ext)s"},
        "paths": {"home": fout},
    }

    with yt_dlp.YoutubeDL(ydl_opts) as ydl:
        info = ydl.extract_info(url, download=False)
        out_data = feedendum.feed.Feed(
            description=info["description"],
            title=info["title"],
            url=url,
            update=datetime.now(),
            _data={
                "itunes:image": sorted(info["thumbnails"], key=lambda e: e["width"], reverse=True)[
                    0
                ]["url"].split("?")[0],
                "language": info["entries"][0]["language"] + "-" + info["entries"][0]["language"],
                "itunes:author": info["channel"],
            },
        )
        ydl.download([e["webpage_url"] for e in info["entries"]])
        for entry in info["entries"]:
            efile = next((Path(".") / fout).glob(f"{entry['id']}.*"))
            fentry = feedendum.feed.FeedItem(
                url=entry["webpage_url"],
                title=entry["title"],
                id=entry["webpage_url"],
                content=entry["description"],
                update=datetime.fromtimestamp(entry["timestamp"]),
                _data={
                    "enclosure": {"@url": "./" + efile.name, "length": efile.stat().st_size , "type": mimetypes.guess_type(efile.name)[0]},
                    "itunes:duration": entry["duration"],
                    "image": {
                        "url": sorted(
                            filter(lambda k: "jpg" in k["url"], entry["thumbnails"]),
                            key=lambda k: k["preference"],
                            reverse=True,
                        )[0]["url"]
                    },
                },
            )
            out_data.items.append(fentry)
    with open(Path(".") / fout / f"{info['id']}.xml", "w") as fo:
        fo.write(feedendum.to_rss_string(out_data))


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("url", help="playlist url")
    parser.add_argument("-v", "--verbosity", action="count", help="increase output verbosity")
    parser.add_argument("-o", "--output", help="output folder", default="out")
    args = parser.parse_args()
    main(args.url, args.output)