bzconsole is a simple Python API to bugzilla's bzapi. Currently, it only has a few functions, including getting the configuration, listing the products and components, and filing a new bug. I mostly introduced it to make filing bugs from the command line simple. I'll probably include more features going forward as I need them, but if anyone else is interested I'm happy to take feature requests.
The console entry point is bz. Invoking without options gives you the usage and help. The general pattern is bz [options] < command > [command-options] . Using bz help < command > displays the help for the command.
You can have a ~/.bz dotfile to contain your username and password in.
Feel free to contact me with any questions!