What Comes After Python

"""
Fetch and display top Hacker News stories in the terminal.
Uses: argparse, dataclasses, type hints, requests, logging,
      error handling, f-strings, list comprehensions.
Run: python hn_top.py --limit 5 --min-score 300
"""
import argparse, logging, sys
import requests
from dataclasses import dataclass
from typing      import Optional

logging.basicConfig(level=logging.INFO, format="%(levelname)s %(message)s")
log = logging.getLogger(__name__)
BASE = "https://hacker-news.firebaseio.com/v0"

@dataclass
class Story:
    title  : str
    score  : int
    by     : str
    url    : Optional[str] = None

    def display(self, rank: int) -> None:
        print(f"\n  {rank:>2}. {self.title}")
        print(f"      ★ {self.score} pts  👤 {self.by}")
        if self.url:
            print(f"      🔗 {self.url}")

def fetch_story(sid: int) -> Optional[Story]:
    try:
        d = requests.get(f"{BASE}/item/{sid}.json", timeout=5).json()
        return Story(title=d["title"], score=d.get("score",0),
                     by=d.get("by","?"), url=d.get("url"))
    except Exception:
        return None

def main() -> None:
    p = argparse.ArgumentParser(description="Top Hacker News stories")
    p.add_argument("--limit",     type=int, default=10, help="Stories to fetch")
    p.add_argument("--min-score", type=int, default=0,  help="Min score filter")
    args = p.parse_args()

    log.info(f"Fetching top {args.limit} stories...")
    try:
        ids = requests.get(f"{BASE}/topstories.json", timeout=5).json()
    except requests.exceptions.RequestException as e:
        log.error(f"Network error: {e}")
        sys.exit(1)

    # list comprehension + filter — topics 10 & 18
    stories = [s for sid in ids[:args.limit * 2]
               if (s := fetch_story(sid)) and s.score >= args.min_score][:args.limit]

    print(f"\n📊 Top {len(stories)} Hacker News stories"
          f"{f' (score ≥ {args.min_score})' if args.min_score else ''}")
    print("─" * 55)
    for rank, story in enumerate(stories, 1):
        story.display(rank)

if __name__ == "__main__":
    main()

python hn_top.py --limit 3 --min-score 400

INFO Fetching top 3 stories...

📊 Top 3 Hacker News stories (score ≥ 400)
───────────────────────────────────────────────────────

   1. Show HN: I rewrote curl in 300 lines of Python
      ★ 1,243 pts  👤 systems_py
      🔗 https://github.com/systems_py/tinycurl

   2. The day I stopped writing documentation and started writing tests
      ★ 876 pts  👤 engblog
      🔗 https://engblog.medium.com/tests-are-docs

   3. Ask HN: What Python project made you actually understand classes?
      ★ 541 pts  👤 curious_dev