Writing to FoxPro-DBFs maintaining indexfiles (idx

Question

I'm using the Python dbf lib by Ethan Furman - which is a great tool - to write to some Foxpro-tables ('free tables'). My problem is, that I need the accompanying index-files staying up to date. I have read, that Ethan Furman was working on it, but it was a notice from 2011. I couldn't find any info about, if he was successful. Is there a solution for it (or maybe with some other lib)?