In case you've ever wanted to create your personal "must reads" on Python related stuff, search for something in articles published a while ago - here is a simple approach how one may try to tackle the problem:
Crawl reddit's r/Python:
That's a very basic scrapy spider, which You can invoke for instance like that:
and store all links with titles that lead to external blogs/services. That way You won't miss a single article :-). Hook this script to some database, add published_at field and get notified only when there is new stuff.