A simple Python IRC client library that supports SSL?

What is Sopel?

Sopel is a simple, easy-to-use, open-source IRC utility bot, written in Python. It's designed to be easy to use, easy to run, and easy to extend. Sopel comes with a ton of ready-made features for you to use. It can leave notes for people, give you reminders, and much more.

Twisted has an IRC client (in twisted.words), and it supports SSL.

There is an example in the documentation, just remember to do reactor.connectSSL instead of reactor.connectTCP.

If you don't want Twisted, there is also the Python IRC library, which I notice has SSL support in the latest release.