Oh, I see what you mean... this script only does one little bit of what you want.
It can be certainly be done, but it's a bit beyond my Python skills at the moment.

Python Wizards, where are you?

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)