The pyspqsigs project is currently undergoing a bit refactoring into what has been renamed to coinZdense. Check out the technical deep-dive documents to see what's comming.
Simple Hash Based Post Quantum Signatures : Python implementation
The coinZdense project is a continuation of the spq_sigs project using lessons learned to create a new has-based signatures library for use in/with utility-blockchains, blockchain-based distributed exchanges, and other setups where key-reuse-by design is required and the solution should be post-quantum ready.
Please note that the signatures for coinZdense aren't compatible with those from it's predecesor spq_sigs.
This project currently hasn't reached MVP status yet. Focus is currently on creating a stable API and signature format Stabilizing state serialisation format isn't a focus yet, and neither is cross-language compatibility of state serialization.