It takes an array with the entries as input, not a web page. But I guess the HTML parsing should take no more than another few lines? For HTML parsing, I have good experiences with the lxml module which is in the Debian repos. It is fast and works pretty well.
59 requirements, including Django, seems pretty heavy though?
For my own RSS feed, I use this 48 line Python file with no dependencies outside the standard library:
https://github.com/no-gravity/atomfeed.py
It takes an array with the entries as input, not a web page. But I guess the HTML parsing should take no more than another few lines? For HTML parsing, I have good experiences with the lxml module which is in the Debian repos. It is fast and works pretty well.