I have rewritten my Light Lister plugin for C4D in python. It can be downloaded here:
It is for C4D V12. It will not work with older versions. Because it is python it should be PC and Mac compatible.
One additional treat…
I have left the source code un-encoded in the file on purpose. At the moment there are so few resources available for learning to program C4D plugins in python that I thought interested parties may learn a few things from the code. Please act responsibly with the source code.
Technical Repository 
Hi Adam,
Great news. I have waited for this. Thanks for making it open source.
I figured, changing the light-color doesnt work. I would fix it if I could. But I never touched phyton.
cheers, holger
Thanks for catching that. Pulling the link for now. Will post it back up soon, when that bug is fixed.
Looks like the color picker is not receiving any BFM_ACTION messages when the user is working with it. Not sure if this is a bug or some kind of special case… Will take some time to figure it out…
Fixed.
Newbie question… how exactly do I install it?
Put in plugins folder in your application folder.
It is a python plugin, so it is called from the python menu.
thnx!
OBRIGADO!!1
Superb post Adam thanks so much!
Hi I am net to Python scripts hi how do open your Python script in C4d and amend/play with
look for the file with .py or .pyp extension and open in a text editor or code editor.