Spreading the word for https://ueberspace.de a sympathetic pay what you want Hoster with some some cool features :) and free sticker

Please excuse: This is my first step into python. So consider this a beginners question:

https://github.com/paradonym/...

This forked script checks a twitter page for words and sends a mail (probably using .qmail) to the owner.
If I execute this python:
"[$USER@$HOST uberspace-downtime-notify]$ python fetch.py
Traceback (most recent call last):
File "fetch.py", line 11, in <module>
import html
ImportError: No module named html
"
Similar errors are fixed in this github commit https://github.com/datalib/... - but that's a more complex script and I don't quite get where the imported module is needed (on a code basis - on the logical basis all is clear)

Any idea for a guy with his first steps into python and back into programming languages since some years=