There's a merged pull request on the void-packages repository

inkscape: fix extensions when python3 is default
https://github.com/void-linux/void-packages/pull/13338
Description: Also add missing python modules that some extensions rely on.

The issue is that `inkscape` just blindly calls `python` assuming its python2. Since `python2` is always `python2` on void, this is a decent temp fix until `inkscape` gets their python3 going. At that point, it'll probably have to be changed to always pick `python3` ... but that's fine.