rss-digest is a Python script for generating digests of subscribed RSS and Atom feeds (a "digest" being a single document, email, etc which lists all the recent new or updated entries in each feed). Currently, it can send output via SMTP, save it to a file or print it to standard output. The content and appearance of the digest is configurable using Jinja2 templates; templates for HTML, plain text and markdown output are included by default.
For a detailed guide on how to install and use rss-digest is available, see the tutorial.