We need a starting point for migration to Python, something simple enough to allow quick testing of the Python config API library, and then serve as an example for new contributors.
The cron script sounds like a perfect candidate since it's short, straightforward, and self-contained.
It should use the Python library: https://github.com/vyos/vyatta-cfg/blob/current/python/vyos/config.py
I must follow these guidelines: http://blog.vyos.net/vyos-2-dot-0-development-digest-number-5-doing-1-dot-2-x-and-2-dot-0-development-in-parallel