A while back, Jeremy and I asked about topics people would like to see covered in the book we are writing about Python for Systems Administration. I would like to take this one step further as ask if there are any essential open source libraries we should cover in our book. An example of this would be the unbelievably useful IPy Module, which my co-worker Doug introduced me to a while back. Since then, I have found the module indispensable.
Also, if you have done something really cool with Python and Systems Administration, send me an email, and I will see if I can give it some coverage in the book. Even if you plan on doing something cool, then make a google code project and send me a link.