A closer library is Infer.NET: https://dotnet.github.io/infer https://dotnet.github.io/infer. It includes a really mature compiler that generates very efficien

A closer library is Infer.NET: https://dotnet.github.io/infer https://dotnet.github.io/infer. It includes a really mature compiler that generates very efficient message passing and variational inference, with support for online inference, which is the main focus on Rxinfer. You can call Infer.NET from Python in a number of ways, despite it is not a CPython library.