AppleScript: Scripting Bridge is an Apple product for sending Apple Events from Python.
I wonder how Python compares to AppleScript now as an OS X scripting language. I certainly prefer Python's syntax and scoping rules.
Also, Apple has at last updated their AppleScript documentation site. It was about 8-10 years out of date until recently. I'd assumed Apple was giving up on AppleScript, perhaps replacing it with an Apple version of Python. They've obviously decided to make another go of AppleScript, but it will be interesting to see how well Python and Scripting Bridge work.
Update: Be sure to check out the comments on the historic third party support for Python Apple Events and the associated links.