Stitching together a crazy sys admin world with Python
The Fabric Python library makes it extremely easy to create repeatable scripts of commands over SSH to any number of servers.
Fabric  is an amazing Python library that makes it easy to codify common system tasks into flexible recipes. Chef and Puppet are great tools for larger, more complicated environments, but they are often a lot of work for more simple setups. Anytime I find myself executing a series of commands together on a regular basis, I switch gears and build a Fabric task instead.