feeds.py

"""
feeds.py - minimalistic console RSS reader
Installation: pip install -U feedparser
Usage:
    python3 feeds.py https://hnrss.org/frontpage https://www.reddit.com/r/Python/new.rss?limit=10
or, to get 10 entries from all feeds, shuffled:
    SAMPLE=10 python3 feeds.py https://hnrss.org/frontpage https://www.reddit.com/r/Python/new.rss?limit=10
"""

import os, sys, feedparser, functools, operator, time, random
from concurrent.futures import ThreadPoolExecutor as executor

def parse(url):
    return feedparser.parse(url).entries

def sample(entries):
    size = os.environ.get("SAMPLE")
    return random.sample(entries, int(size)) if size else entries

def get():
    return functools.reduce(operator.add, executor().map(parse, sys.argv[1:]), [])

sort_key=lambda x: x.get("updated_parsed", x.get("published_parsed", time.localtime()))
sorted_feed = functools.partial(sorted, key=sort_key)

[print(f"{e.title}\n  {e.link}") for e in sample(sorted_feed(get()))]